Mercurial > octave-dspies
annotate src/oct-parse.yy @ 11388:027fbc389898
Remove seealso reference to deprecated function dispatch.
author | Rik <octave@nomad.inbox5.com> |
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date | Fri, 17 Dec 2010 22:20:54 -0800 |
parents | b2191ebea12f |
children | 2b8531a6a3c9 |
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1829 | 1 /* |
1 | 2 |
7017 | 3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
8920 | 4 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 John W. Eaton |
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5 Copyright (C) 2009 David Grundberg |
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6 Copyright (C) 2009, 2010 VZLU Prague |
1 | 7 |
8 This file is part of Octave. | |
9 | |
10 Octave is free software; you can redistribute it and/or modify it | |
11 under the terms of the GNU General Public License as published by the | |
7016 | 12 Free Software Foundation; either version 3 of the License, or (at your |
13 option) any later version. | |
1 | 14 |
15 Octave is distributed in the hope that it will be useful, but WITHOUT | |
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
18 for more details. | |
19 | |
20 You should have received a copy of the GNU General Public License | |
7016 | 21 along with Octave; see the file COPYING. If not, see |
22 <http://www.gnu.org/licenses/>. | |
1 | 23 |
24 */ | |
25 | |
26 // Parser for Octave. | |
27 | |
767 | 28 // C decarations. |
29 | |
1 | 30 %{ |
31 #define YYDEBUG 1 | |
32 | |
240 | 33 #ifdef HAVE_CONFIG_H |
1229 | 34 #include <config.h> |
240 | 35 #endif |
36 | |
3178 | 37 #include <cassert> |
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38 #include <cstdio> |
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39 #include <cstdlib> |
2427 | 40 |
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41 #include <iostream> |
5484 | 42 #include <map> |
5765 | 43 #include <sstream> |
5484 | 44 |
3928 | 45 #include "Cell.h" |
1 | 46 #include "Matrix.h" |
3021 | 47 #include "cmd-edit.h" |
48 #include "cmd-hist.h" | |
49 #include "file-ops.h" | |
50 #include "file-stat.h" | |
4243 | 51 #include "oct-env.h" |
3712 | 52 #include "oct-time.h" |
4171 | 53 #include "quit.h" |
1 | 54 |
3665 | 55 #include "comment-list.h" |
4243 | 56 #include "defaults.h" |
2166 | 57 #include "defun.h" |
4243 | 58 #include "dirfns.h" |
3021 | 59 #include "dynamic-ld.h" |
1351 | 60 #include "error.h" |
61 #include "input.h" | |
62 #include "lex.h" | |
5832 | 63 #include "load-path.h" |
1743 | 64 #include "oct-hist.h" |
5626 | 65 #include "oct-map.h" |
4935 | 66 #include "ov-fcn-handle.h" |
2970 | 67 #include "ov-usr-fcn.h" |
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68 #include "ov-null-mat.h" |
1670 | 69 #include "toplev.h" |
1351 | 70 #include "pager.h" |
71 #include "parse.h" | |
2987 | 72 #include "pt-all.h" |
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73 #include "pt-eval.h" |
1351 | 74 #include "symtab.h" |
75 #include "token.h" | |
3021 | 76 #include "unwind-prot.h" |
1 | 77 #include "utils.h" |
1351 | 78 #include "variables.h" |
1 | 79 |
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80 #if defined (GNULIB_NAMESPACE) |
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81 // Calls to the following functions appear in the generated output from |
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82 // Bison without the namespace tag. Redefine them so we will use them |
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83 // via the gnulib namespace. |
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84 #define fclose GNULIB_NAMESPACE::fclose |
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85 #define fprintf GNULIB_NAMESPACE::fprintf |
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86 #define malloc GNULIB_NAMESPACE::malloc |
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87 #endif |
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88 |
1 | 89 // The current input line number. |
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90 int input_line_number = 1; |
1 | 91 |
92 // The column of the current token. | |
143 | 93 int current_input_column = 1; |
1 | 94 |
338 | 95 // Buffer for help text snagged from function files. |
4426 | 96 std::stack<std::string> help_buf; |
1 | 97 |
3665 | 98 // Buffer for comments appearing before a function statement. |
99 static std::string fcn_comment_header; | |
100 | |
3021 | 101 // TRUE means we are using readline. |
102 // (--no-line-editing) | |
103 bool line_editing = true; | |
104 | |
105 // TRUE means we printed messages about reading startup files. | |
106 bool reading_startup_message_printed = false; | |
107 | |
108 // TRUE means input is coming from startup file. | |
109 bool input_from_startup_file = false; | |
110 | |
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111 // = 0 currently outside any function. |
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112 // = 1 inside the primary function or a subfunction. |
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113 // > 1 means we are looking at a function definition that seems to be |
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114 // inside a function. Note that the function still might not be a |
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115 // nested function. |
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116 static int current_function_depth = 0; |
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117 |
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118 // Maximum function depth detected. Just here to determine whether |
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119 // we have nested functions or just implicitly ended subfunctions. |
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120 static int max_function_depth = 0; |
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121 |
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122 // FALSE if we are still at the primary function. Subfunctions can |
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123 // only be declared inside function files. |
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124 static int parsing_subfunctions = false; |
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125 |
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126 // Have we found an explicit end to a function? |
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127 static bool endfunction_found = false; |
4238 | 128 |
3903 | 129 // Keep track of symbol table information when parsing functions. |
7336 | 130 std::stack<symbol_table::scope_id> symtab_context; |
4238 | 131 |
7336 | 132 // Name of the current class when we are parsing class methods or |
133 // constructors. | |
134 std::string current_class_name; | |
135 | |
5484 | 136 // TRUE means we are in the process of autoloading a function. |
137 static bool autoloading = false; | |
138 | |
6323 | 139 // TRUE means the current function file was found in a relative path |
140 // element. | |
141 static bool fcn_file_from_relative_lookup = false; | |
142 | |
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143 // Pointer to the primary user function or user script function. |
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144 static octave_function *primary_fcn_ptr = 0; |
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145 |
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146 // Scope where we install all subfunctions and nested functions. Only |
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147 // used while reading function files. |
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148 static symbol_table::scope_id primary_fcn_scope; |
7336 | 149 |
5484 | 150 // List of autoloads (function -> file mapping). |
151 static std::map<std::string, std::string> autoload_map; | |
152 | |
496 | 153 // Forward declarations for some functions defined at the bottom of |
154 // the file. | |
155 | |
156 // Generic error messages. | |
2970 | 157 static void |
158 yyerror (const char *s); | |
1 | 159 |
578 | 160 // Error mesages for mismatched end tokens. |
2970 | 161 static void |
162 end_error (const char *type, token::end_tok_type ettype, int l, int c); | |
1 | 163 |
578 | 164 // Check to see that end tokens are properly matched. |
2970 | 165 static bool |
166 end_token_ok (token *tok, token::end_tok_type expected); | |
496 | 167 |
168 // Maybe print a warning if an assignment expression is used as the | |
169 // test in a logical expression. | |
2970 | 170 static void |
171 maybe_warn_assign_as_truth_value (tree_expression *expr); | |
1 | 172 |
2764 | 173 // Maybe print a warning about switch labels that aren't constants. |
2970 | 174 static void |
175 maybe_warn_variable_switch_label (tree_expression *expr); | |
2764 | 176 |
1623 | 177 // Finish building a range. |
2970 | 178 static tree_expression * |
179 finish_colon_expression (tree_colon_expression *e); | |
1623 | 180 |
1607 | 181 // Build a constant. |
2970 | 182 static tree_constant * |
183 make_constant (int op, token *tok_val); | |
1607 | 184 |
4342 | 185 // Build a function handle. |
186 static tree_fcn_handle * | |
187 make_fcn_handle (token *tok_val); | |
188 | |
4935 | 189 // Build an anonymous function handle. |
5861 | 190 static tree_anon_fcn_handle * |
4935 | 191 make_anon_fcn_handle (tree_parameter_list *param_list, tree_statement *stmt); |
192 | |
578 | 193 // Build a binary expression. |
2970 | 194 static tree_expression * |
195 make_binary_op (int op, tree_expression *op1, token *tok_val, | |
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196 tree_expression *op2); |
578 | 197 |
2375 | 198 // Build a boolean expression. |
2970 | 199 static tree_expression * |
200 make_boolean_op (int op, tree_expression *op1, token *tok_val, | |
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201 tree_expression *op2); |
2375 | 202 |
578 | 203 // Build a prefix expression. |
2970 | 204 static tree_expression * |
205 make_prefix_op (int op, tree_expression *op1, token *tok_val); | |
578 | 206 |
207 // Build a postfix expression. | |
2970 | 208 static tree_expression * |
209 make_postfix_op (int op, tree_expression *op1, token *tok_val); | |
578 | 210 |
1623 | 211 // Build an unwind-protect command. |
2970 | 212 static tree_command * |
213 make_unwind_command (token *unwind_tok, tree_statement_list *body, | |
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214 tree_statement_list *cleanup, token *end_tok, |
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215 octave_comment_list *lc, octave_comment_list *mc); |
1623 | 216 |
217 // Build a try-catch command. | |
2970 | 218 static tree_command * |
219 make_try_command (token *try_tok, tree_statement_list *body, | |
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220 tree_statement_list *cleanup, token *end_tok, |
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221 octave_comment_list *lc, octave_comment_list *mc); |
1623 | 222 |
223 // Build a while command. | |
2970 | 224 static tree_command * |
225 make_while_command (token *while_tok, tree_expression *expr, | |
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226 tree_statement_list *body, token *end_tok, |
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227 octave_comment_list *lc); |
1623 | 228 |
3484 | 229 // Build a do-until command. |
230 static tree_command * | |
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231 make_do_until_command (token *until_tok, tree_statement_list *body, |
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232 tree_expression *expr, octave_comment_list *lc); |
3484 | 233 |
1623 | 234 // Build a for command. |
2970 | 235 static tree_command * |
236 make_for_command (token *for_tok, tree_argument_list *lhs, | |
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237 tree_expression *expr, tree_statement_list *body, |
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238 token *end_tok, octave_comment_list *lc); |
1623 | 239 |
4207 | 240 // Build a break command. |
241 static tree_command * | |
242 make_break_command (token *break_tok); | |
243 | |
244 // Build a continue command. | |
245 static tree_command * | |
246 make_continue_command (token *continue_tok); | |
247 | |
248 // Build a return command. | |
249 static tree_command * | |
250 make_return_command (token *return_tok); | |
1623 | 251 |
252 // Start an if command. | |
2970 | 253 static tree_if_command_list * |
254 start_if_command (tree_expression *expr, tree_statement_list *list); | |
1623 | 255 |
256 // Finish an if command. | |
2970 | 257 static tree_if_command * |
3665 | 258 finish_if_command (token *if_tok, tree_if_command_list *list, |
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259 token *end_tok, octave_comment_list *lc); |
1623 | 260 |
261 // Build an elseif clause. | |
2970 | 262 static tree_if_clause * |
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263 make_elseif_clause (token *elseif_tok, tree_expression *expr, |
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264 tree_statement_list *list, octave_comment_list *lc); |
1623 | 265 |
2764 | 266 // Finish a switch command. |
2970 | 267 static tree_switch_command * |
268 finish_switch_command (token *switch_tok, tree_expression *expr, | |
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269 tree_switch_case_list *list, token *end_tok, |
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270 octave_comment_list *lc); |
2764 | 271 |
272 // Build a switch case. | |
2970 | 273 static tree_switch_case * |
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274 make_switch_case (token *case_tok, tree_expression *expr, |
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275 tree_statement_list *list, octave_comment_list *lc); |
2764 | 276 |
1623 | 277 // Build an assignment to a variable. |
2970 | 278 static tree_expression * |
279 make_assign_op (int op, tree_argument_list *lhs, token *eq_tok, | |
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280 tree_expression *rhs); |
1623 | 281 |
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282 // Define a script. |
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283 static void |
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284 make_script (tree_statement_list *cmds, tree_statement *end_script); |
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285 |
1623 | 286 // Begin defining a function. |
2970 | 287 static octave_user_function * |
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288 start_function (tree_parameter_list *param_list, tree_statement_list *body, |
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289 tree_statement *end_function); |
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290 |
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291 // Create a no-op statement for end_function. |
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292 static tree_statement * |
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293 make_end (const std::string& type, int l, int c); |
1623 | 294 |
295 // Do most of the work for defining a function. | |
2970 | 296 static octave_user_function * |
4872 | 297 frob_function (const std::string& fname, octave_user_function *fcn); |
1623 | 298 |
299 // Finish defining a function. | |
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300 static tree_function_def * |
3665 | 301 finish_function (tree_parameter_list *ret_list, |
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302 octave_user_function *fcn, octave_comment_list *lc); |
751 | 303 |
2883 | 304 // Reset state after parsing function. |
2970 | 305 static void |
306 recover_from_parsing_function (void); | |
2883 | 307 |
751 | 308 // Make an index expression. |
2970 | 309 static tree_index_expression * |
3933 | 310 make_index_expression (tree_expression *expr, |
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311 tree_argument_list *args, char type); |
2970 | 312 |
313 // Make an indirect reference expression. | |
3930 | 314 static tree_index_expression * |
3523 | 315 make_indirect_ref (tree_expression *expr, const std::string&); |
666 | 316 |
4131 | 317 // Make an indirect reference expression with dynamic field name. |
318 static tree_index_expression * | |
319 make_indirect_ref (tree_expression *expr, tree_expression *field); | |
320 | |
2846 | 321 // Make a declaration command. |
2970 | 322 static tree_decl_command * |
323 make_decl_command (int tok, token *tok_val, tree_decl_init_list *lst); | |
2846 | 324 |
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325 // Validate argument list forming a matrix or cell row. |
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326 static tree_argument_list * |
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327 validate_matrix_row (tree_argument_list *row); |
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328 |
1623 | 329 // Finish building a matrix list. |
2970 | 330 static tree_expression * |
331 finish_matrix (tree_matrix *m); | |
1623 | 332 |
3351 | 333 // Finish building a cell list. |
334 static tree_expression * | |
335 finish_cell (tree_cell *c); | |
336 | |
1511 | 337 // Maybe print a warning. Duh. |
2970 | 338 static void |
339 maybe_warn_missing_semi (tree_statement_list *); | |
1511 | 340 |
2525 | 341 // Set the print flag for a statement based on the separator type. |
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342 static tree_statement_list * |
2970 | 343 set_stmt_print_flag (tree_statement_list *, char, bool); |
2525 | 344 |
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345 // Create a statement list. |
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346 static tree_statement_list *make_statement_list (tree_statement *stmt); |
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347 |
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348 // Append a statement to an existing statement list. |
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349 static tree_statement_list * |
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350 append_statement_list (tree_statement_list *list, char sep, |
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351 tree_statement *stmt, bool warn_missing_semi); |
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352 |
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353 // Finish building a statement. |
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354 template <class T> |
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355 static tree_statement * |
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356 make_statement (T *arg) |
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357 { |
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358 octave_comment_list *comment = octave_comment_buffer::get_comment (); |
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359 |
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360 return new tree_statement (arg, comment); |
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361 } |
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362 |
1 | 363 #define ABORT_PARSE \ |
364 do \ | |
365 { \ | |
522 | 366 global_command = 0; \ |
1 | 367 yyerrok; \ |
4238 | 368 if (! symtab_context.empty ()) \ |
3929 | 369 { \ |
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370 symbol_table::set_scope (symtab_context.top ()); \ |
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371 symtab_context.pop (); \ |
3929 | 372 } \ |
2865 | 373 if (interactive || forced_interactive) \ |
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374 YYACCEPT; \ |
1 | 375 else \ |
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376 YYABORT; \ |
1 | 377 } \ |
378 while (0) | |
379 | |
380 %} | |
381 | |
666 | 382 // Bison declarations. |
383 | |
4813 | 384 // Don't add spaces around the = here; it causes some versions of |
385 // bison to fail to properly recognize the directive. | |
386 | |
387 %name-prefix="octave_" | |
4753 | 388 |
1 | 389 %union |
390 { | |
2891 | 391 // The type of the basic tokens returned by the lexer. |
143 | 392 token *tok_val; |
393 | |
3665 | 394 // Comment strings that we need to deal with mid-rule. |
395 octave_comment_list *comment_type; | |
396 | |
2891 | 397 // Types for the nonterminals we generate. |
2525 | 398 char sep_type; |
1 | 399 tree *tree_type; |
1829 | 400 tree_matrix *tree_matrix_type; |
3351 | 401 tree_cell *tree_cell_type; |
496 | 402 tree_expression *tree_expression_type; |
2375 | 403 tree_constant *tree_constant_type; |
4342 | 404 tree_fcn_handle *tree_fcn_handle_type; |
5861 | 405 tree_anon_fcn_handle *tree_anon_fcn_handle_type; |
1 | 406 tree_identifier *tree_identifier_type; |
407 tree_index_expression *tree_index_expression_type; | |
408 tree_colon_expression *tree_colon_expression_type; | |
409 tree_argument_list *tree_argument_list_type; | |
410 tree_parameter_list *tree_parameter_list_type; | |
411 tree_command *tree_command_type; | |
412 tree_if_command *tree_if_command_type; | |
578 | 413 tree_if_clause *tree_if_clause_type; |
414 tree_if_command_list *tree_if_command_list_type; | |
2764 | 415 tree_switch_command *tree_switch_command_type; |
416 tree_switch_case *tree_switch_case_type; | |
417 tree_switch_case_list *tree_switch_case_list_type; | |
2846 | 418 tree_decl_elt *tree_decl_elt_type; |
419 tree_decl_init_list *tree_decl_init_list_type; | |
420 tree_decl_command *tree_decl_command_type; | |
578 | 421 tree_statement *tree_statement_type; |
422 tree_statement_list *tree_statement_list_type; | |
2891 | 423 octave_user_function *octave_user_function_type; |
9476 | 424 void *dummy_type; |
1 | 425 } |
426 | |
143 | 427 // Tokens with line and column information. |
428 %token <tok_val> '=' ':' '-' '+' '*' '/' | |
4018 | 429 %token <tok_val> ADD_EQ SUB_EQ MUL_EQ DIV_EQ LEFTDIV_EQ POW_EQ |
430 %token <tok_val> EMUL_EQ EDIV_EQ ELEFTDIV_EQ EPOW_EQ AND_EQ OR_EQ | |
2899 | 431 %token <tok_val> LSHIFT_EQ RSHIFT_EQ LSHIFT RSHIFT |
428 | 432 %token <tok_val> EXPR_AND_AND EXPR_OR_OR |
143 | 433 %token <tok_val> EXPR_AND EXPR_OR EXPR_NOT |
434 %token <tok_val> EXPR_LT EXPR_LE EXPR_EQ EXPR_NE EXPR_GE EXPR_GT | |
1276 | 435 %token <tok_val> LEFTDIV EMUL EDIV ELEFTDIV EPLUS EMINUS |
436 %token <tok_val> QUOTE TRANSPOSE | |
143 | 437 %token <tok_val> PLUS_PLUS MINUS_MINUS POW EPOW |
438 %token <tok_val> NUM IMAG_NUM | |
2970 | 439 %token <tok_val> STRUCT_ELT |
2883 | 440 %token <tok_val> NAME |
143 | 441 %token <tok_val> END |
5279 | 442 %token <tok_val> DQ_STRING SQ_STRING |
3484 | 443 %token <tok_val> FOR WHILE DO UNTIL |
1491 | 444 %token <tok_val> IF ELSEIF ELSE |
2764 | 445 %token <tok_val> SWITCH CASE OTHERWISE |
1491 | 446 %token <tok_val> BREAK CONTINUE FUNC_RET |
924 | 447 %token <tok_val> UNWIND CLEANUP |
1489 | 448 %token <tok_val> TRY CATCH |
2846 | 449 %token <tok_val> GLOBAL STATIC |
4342 | 450 %token <tok_val> FCN_HANDLE |
9476 | 451 %token <tok_val> PROPERTIES |
452 %token <tok_val> METHODS | |
453 %token <tok_val> EVENTS | |
454 %token <tok_val> METAQUERY | |
455 %token <tok_val> SUPERCLASSREF | |
456 %token <tok_val> GET SET | |
1 | 457 |
143 | 458 // Other tokens. |
2970 | 459 %token END_OF_INPUT LEXICAL_ERROR |
9476 | 460 %token FCN SCRIPT_FILE FUNCTION_FILE CLASSDEF |
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461 // %token VARARGIN VARARGOUT |
5296 | 462 %token CLOSE_BRACE |
1 | 463 |
143 | 464 // Nonterminals we construct. |
9476 | 465 %type <comment_type> stash_comment function_beg classdef_beg |
466 %type <comment_type> properties_beg methods_beg events_beg | |
2525 | 467 %type <sep_type> sep_no_nl opt_sep_no_nl sep opt_sep |
578 | 468 %type <tree_type> input |
5861 | 469 %type <tree_constant_type> string constant magic_colon |
470 %type <tree_anon_fcn_handle_type> anon_fcn_handle | |
4342 | 471 %type <tree_fcn_handle_type> fcn_handle |
3351 | 472 %type <tree_matrix_type> matrix_rows matrix_rows1 |
473 %type <tree_cell_type> cell_rows cell_rows1 | |
5102 | 474 %type <tree_expression_type> matrix cell |
4207 | 475 %type <tree_expression_type> primary_expr postfix_expr prefix_expr binary_expr |
476 %type <tree_expression_type> simple_expr colon_expr assign_expr expression | |
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477 %type <tree_identifier_type> identifier fcn_name magic_tilde |
9476 | 478 %type <tree_identifier_type> superclass_identifier meta_identifier |
479 %type <octave_user_function_type> function1 function2 classdef1 | |
2970 | 480 %type <tree_index_expression_type> word_list_cmd |
481 %type <tree_colon_expression_type> colon_expr1 | |
3351 | 482 %type <tree_argument_list_type> arg_list word_list assign_lhs |
483 %type <tree_argument_list_type> cell_or_matrix_row | |
4935 | 484 %type <tree_parameter_list_type> param_list param_list1 param_list2 |
723 | 485 %type <tree_parameter_list_type> return_list return_list1 |
9476 | 486 %type <tree_parameter_list_type> superclasses opt_superclasses |
2970 | 487 %type <tree_command_type> command select_command loop_command |
9476 | 488 %type <tree_command_type> jump_command except_command function |
489 %type <tree_command_type> script_file classdef | |
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490 %type <tree_command_type> function_file function_list |
578 | 491 %type <tree_if_command_type> if_command |
492 %type <tree_if_clause_type> elseif_clause else_clause | |
493 %type <tree_if_command_list_type> if_cmd_list1 if_cmd_list | |
2764 | 494 %type <tree_switch_command_type> switch_command |
495 %type <tree_switch_case_type> switch_case default_case | |
496 %type <tree_switch_case_list_type> case_list1 case_list | |
2846 | 497 %type <tree_decl_elt_type> decl2 |
498 %type <tree_decl_init_list_type> decl1 | |
499 %type <tree_decl_command_type> declaration | |
9476 | 500 %type <tree_statement_type> statement function_end classdef_end |
627 | 501 %type <tree_statement_list_type> simple_list simple_list1 list list1 |
7336 | 502 %type <tree_statement_list_type> opt_list input1 |
9476 | 503 // These types need to be specified. |
504 %type <dummy_type> attr | |
505 %type <dummy_type> class_event | |
506 %type <dummy_type> class_property | |
507 %type <dummy_type> properties_list | |
508 %type <dummy_type> properties_block | |
509 %type <dummy_type> methods_list | |
510 %type <dummy_type> methods_block | |
511 %type <dummy_type> opt_attr_list | |
512 %type <dummy_type> attr_list | |
513 %type <dummy_type> events_list | |
514 %type <dummy_type> events_block | |
515 %type <dummy_type> class_body | |
1 | 516 |
143 | 517 // Precedence and associativity. |
1 | 518 %left ';' ',' '\n' |
4018 | 519 %right '=' ADD_EQ SUB_EQ MUL_EQ DIV_EQ LEFTDIV_EQ POW_EQ EMUL_EQ EDIV_EQ ELEFTDIV_EQ EPOW_EQ OR_EQ AND_EQ LSHIFT_EQ RSHIFT_EQ |
4023 | 520 %left EXPR_OR_OR |
521 %left EXPR_AND_AND | |
522 %left EXPR_OR | |
523 %left EXPR_AND | |
1 | 524 %left EXPR_LT EXPR_LE EXPR_EQ EXPR_NE EXPR_GE EXPR_GT |
2899 | 525 %left LSHIFT RSHIFT |
1 | 526 %left ':' |
1276 | 527 %left '-' '+' EPLUS EMINUS |
1 | 528 %left '*' '/' LEFTDIV EMUL EDIV ELEFTDIV |
529 %left UNARY PLUS_PLUS MINUS_MINUS EXPR_NOT | |
5667 | 530 %left POW EPOW QUOTE TRANSPOSE |
3351 | 531 %left '(' '.' '{' |
1 | 532 |
143 | 533 // Where to start. |
1 | 534 %start input |
535 | |
536 %% | |
537 | |
2970 | 538 // ============================== |
539 // Statements and statement lists | |
540 // ============================== | |
541 | |
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542 input : input1 |
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543 { |
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544 global_command = $1; |
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545 promptflag = 1; |
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546 YYACCEPT; |
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547 } |
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548 | function_file |
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549 { YYACCEPT; } |
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550 | simple_list parse_error |
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551 { ABORT_PARSE; } |
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552 | parse_error |
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553 { ABORT_PARSE; } |
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554 ; |
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555 |
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556 input1 : '\n' |
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557 { $$ = 0; } |
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558 | END_OF_INPUT |
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559 { |
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560 parser_end_of_input = 1; |
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561 $$ = 0; |
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562 } |
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563 | simple_list |
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564 { $$ = $1; } |
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565 | simple_list '\n' |
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566 { $$ = $1; } |
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567 | simple_list END_OF_INPUT |
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568 { $$ = $1; } |
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569 ; |
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570 |
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571 simple_list : simple_list1 opt_sep_no_nl |
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572 { $$ = set_stmt_print_flag ($1, $2, false); } |
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573 ; |
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574 |
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575 simple_list1 : statement |
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576 { $$ = make_statement_list ($1); } |
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577 | simple_list1 sep_no_nl statement |
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578 { $$ = append_statement_list ($1, $2, $3, false); } |
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579 ; |
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580 |
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581 opt_list : // empty |
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582 { $$ = new tree_statement_list (); } |
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583 | list |
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584 { $$ = $1; } |
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585 ; |
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586 |
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587 list : list1 opt_sep |
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588 { $$ = set_stmt_print_flag ($1, $2, true); } |
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589 ; |
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590 |
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591 list1 : statement |
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592 { $$ = make_statement_list ($1); } |
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593 | list1 sep statement |
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594 { $$ = append_statement_list ($1, $2, $3, true); } |
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595 ; |
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596 |
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597 statement : expression |
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598 { $$ = make_statement ($1); } |
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599 | command |
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600 { $$ = make_statement ($1); } |
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601 | word_list_cmd |
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602 { $$ = make_statement ($1); } |
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603 ; |
8746
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604 |
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605 // ================= |
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606 // Word-list command |
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607 // ================= |
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608 |
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609 // These are not really like expressions since they can't appear on |
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610 // the RHS of an assignment. But they are also not like commands (IF, |
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611 // WHILE, etc. |
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612 |
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613 word_list_cmd : identifier word_list |
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614 { $$ = make_index_expression ($1, $2, '('); } |
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615 ; |
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616 |
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617 word_list : string |
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618 { $$ = new tree_argument_list ($1); } |
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619 | word_list string |
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620 { |
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621 $1->append ($2); |
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622 $$ = $1; |
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623 } |
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624 ; |
1 | 625 |
2970 | 626 // =========== |
627 // Expressions | |
628 // =========== | |
629 | |
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630 identifier : NAME |
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631 { |
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632 symbol_table::symbol_record *sr = $1->sym_rec (); |
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633 $$ = new tree_identifier (*sr, $1->line (), $1->column ()); |
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634 } |
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635 ; |
2970 | 636 |
9476 | 637 superclass_identifier |
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638 : SUPERCLASSREF |
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639 { $$ = new tree_identifier ($1->line (), $1->column ()); } |
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640 ; |
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641 |
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642 meta_identifier : METAQUERY |
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643 { $$ = new tree_identifier ($1->line (), $1->column ()); } |
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644 ; |
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645 |
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646 string : DQ_STRING |
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647 { $$ = make_constant (DQ_STRING, $1); } |
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648 | SQ_STRING |
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649 { $$ = make_constant (SQ_STRING, $1); } |
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650 ; |
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651 |
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652 constant : NUM |
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653 { $$ = make_constant (NUM, $1); } |
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654 | IMAG_NUM |
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655 { $$ = make_constant (IMAG_NUM, $1); } |
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656 | string |
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657 { $$ = $1; } |
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658 ; |
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659 |
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660 matrix : '[' ']' |
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661 { |
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662 $$ = new tree_constant (octave_null_matrix::instance); |
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663 lexer_flags.looking_at_matrix_or_assign_lhs = false; |
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664 lexer_flags.pending_local_variables.clear (); |
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665 } |
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666 | '[' ';' ']' |
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667 { |
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668 $$ = new tree_constant (octave_null_matrix::instance); |
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669 lexer_flags.looking_at_matrix_or_assign_lhs = false; |
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670 lexer_flags.pending_local_variables.clear (); |
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671 } |
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672 | '[' ',' ']' |
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673 { |
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674 $$ = new tree_constant (octave_null_matrix::instance); |
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675 lexer_flags.looking_at_matrix_or_assign_lhs = false; |
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676 lexer_flags.pending_local_variables.clear (); |
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677 } |
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678 | '[' matrix_rows ']' |
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679 { |
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680 $$ = finish_matrix ($2); |
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681 lexer_flags.looking_at_matrix_or_assign_lhs = false; |
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682 lexer_flags.pending_local_variables.clear (); |
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683 } |
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684 ; |
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685 |
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686 matrix_rows : matrix_rows1 |
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687 { $$ = $1; } |
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688 | matrix_rows1 ';' // Ignore trailing semicolon. |
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689 { $$ = $1; } |
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690 ; |
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691 |
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692 matrix_rows1 : cell_or_matrix_row |
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693 { $$ = new tree_matrix ($1); } |
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694 | matrix_rows1 ';' cell_or_matrix_row |
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695 { |
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696 $1->append ($3); |
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697 $$ = $1; |
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698 } |
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699 ; |
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700 |
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701 cell : '{' '}' |
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702 { $$ = new tree_constant (octave_value (Cell ())); } |
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703 | '{' ';' '}' |
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704 { $$ = new tree_constant (octave_value (Cell ())); } |
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705 | '{' cell_rows '}' |
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706 { $$ = finish_cell ($2); } |
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707 ; |
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708 |
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709 cell_rows : cell_rows1 |
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710 { $$ = $1; } |
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711 | cell_rows1 ';' // Ignore trailing semicolon. |
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712 { $$ = $1; } |
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713 ; |
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714 |
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715 cell_rows1 : cell_or_matrix_row |
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716 { $$ = new tree_cell ($1); } |
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717 | cell_rows1 ';' cell_or_matrix_row |
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718 { |
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719 $1->append ($3); |
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720 $$ = $1; |
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|
721 } |
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722 ; |
3351 | 723 |
724 cell_or_matrix_row | |
10315
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725 : arg_list |
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726 { $$ = validate_matrix_row ($1); } |
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727 | arg_list ',' // Ignore trailing comma. |
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728 { $$ = validate_matrix_row ($1); } |
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729 ; |
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|
730 |
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731 fcn_handle : '@' FCN_HANDLE |
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732 { |
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733 $$ = make_fcn_handle ($2); |
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734 lexer_flags.looking_at_function_handle--; |
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735 } |
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736 ; |
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737 |
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738 anon_fcn_handle : '@' param_list statement |
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739 { $$ = make_anon_fcn_handle ($2, $3); } |
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740 ; |
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741 |
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742 primary_expr : identifier |
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743 { $$ = $1; } |
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744 | constant |
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745 { $$ = $1; } |
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746 | fcn_handle |
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747 { $$ = $1; } |
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748 | matrix |
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749 { $$ = $1; } |
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750 | cell |
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751 { $$ = $1; } |
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752 | meta_identifier |
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753 { $$ = $1; } |
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754 | superclass_identifier |
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755 { $$ = $1; } |
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756 | '(' expression ')' |
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757 { $$ = $2->mark_in_parens (); } |
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758 ; |
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759 |
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760 magic_colon : ':' |
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761 { |
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762 octave_value tmp (octave_value::magic_colon_t); |
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763 $$ = new tree_constant (tmp); |
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764 } |
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|
765 ; |
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766 |
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767 magic_tilde : EXPR_NOT |
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768 { |
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769 $$ = new tree_black_hole (); |
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770 } |
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|
771 ; |
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772 |
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773 arg_list : expression |
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774 { $$ = new tree_argument_list ($1); } |
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775 | magic_colon |
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776 { $$ = new tree_argument_list ($1); } |
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777 | magic_tilde |
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778 { $$ = new tree_argument_list ($1); } |
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779 | arg_list ',' magic_colon |
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780 { |
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781 $1->append ($3); |
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|
782 $$ = $1; |
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|
783 } |
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784 | arg_list ',' magic_tilde |
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785 { |
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|
786 $1->append ($3); |
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|
787 $$ = $1; |
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|
788 } |
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789 | arg_list ',' expression |
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|
790 { |
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|
791 $1->append ($3); |
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|
792 $$ = $1; |
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|
793 } |
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|
794 ; |
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|
795 |
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796 indirect_ref_op : '.' |
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797 { lexer_flags.looking_at_indirect_ref = true; } |
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|
798 ; |
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|
799 |
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800 postfix_expr : primary_expr |
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801 { $$ = $1; } |
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802 | postfix_expr '(' ')' |
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803 { $$ = make_index_expression ($1, 0, '('); } |
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804 | postfix_expr '(' arg_list ')' |
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805 { $$ = make_index_expression ($1, $3, '('); } |
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806 | postfix_expr '{' '}' |
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807 { $$ = make_index_expression ($1, 0, '{'); } |
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808 | postfix_expr '{' arg_list '}' |
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809 { $$ = make_index_expression ($1, $3, '{'); } |
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810 | postfix_expr PLUS_PLUS |
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811 { $$ = make_postfix_op (PLUS_PLUS, $1, $2); } |
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812 | postfix_expr MINUS_MINUS |
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813 { $$ = make_postfix_op (MINUS_MINUS, $1, $2); } |
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814 | postfix_expr QUOTE |
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815 { $$ = make_postfix_op (QUOTE, $1, $2); } |
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816 | postfix_expr TRANSPOSE |
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817 { $$ = make_postfix_op (TRANSPOSE, $1, $2); } |
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818 | postfix_expr indirect_ref_op STRUCT_ELT |
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819 { $$ = make_indirect_ref ($1, $3->text ()); } |
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820 | postfix_expr indirect_ref_op '(' expression ')' |
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821 { $$ = make_indirect_ref ($1, $4); } |
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822 ; |
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823 |
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824 prefix_expr : postfix_expr |
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825 { $$ = $1; } |
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826 | binary_expr |
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827 { $$ = $1; } |
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828 | PLUS_PLUS prefix_expr %prec UNARY |
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829 { $$ = make_prefix_op (PLUS_PLUS, $2, $1); } |
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830 | MINUS_MINUS prefix_expr %prec UNARY |
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831 { $$ = make_prefix_op (MINUS_MINUS, $2, $1); } |
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832 | EXPR_NOT prefix_expr %prec UNARY |
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833 { $$ = make_prefix_op (EXPR_NOT, $2, $1); } |
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834 | '+' prefix_expr %prec UNARY |
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835 { $$ = make_prefix_op ('+', $2, $1); } |
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836 | '-' prefix_expr %prec UNARY |
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837 { $$ = make_prefix_op ('-', $2, $1); } |
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838 ; |
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839 |
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840 binary_expr : prefix_expr POW prefix_expr |
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841 { $$ = make_binary_op (POW, $1, $2, $3); } |
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842 | prefix_expr EPOW prefix_expr |
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843 { $$ = make_binary_op (EPOW, $1, $2, $3); } |
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844 | prefix_expr '+' prefix_expr |
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845 { $$ = make_binary_op ('+', $1, $2, $3); } |
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846 | prefix_expr '-' prefix_expr |
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847 { $$ = make_binary_op ('-', $1, $2, $3); } |
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848 | prefix_expr '*' prefix_expr |
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849 { $$ = make_binary_op ('*', $1, $2, $3); } |
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850 | prefix_expr '/' prefix_expr |
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851 { $$ = make_binary_op ('/', $1, $2, $3); } |
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852 | prefix_expr EPLUS prefix_expr |
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853 { $$ = make_binary_op ('+', $1, $2, $3); } |
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854 | prefix_expr EMINUS prefix_expr |
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855 { $$ = make_binary_op ('-', $1, $2, $3); } |
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856 | prefix_expr EMUL prefix_expr |
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857 { $$ = make_binary_op (EMUL, $1, $2, $3); } |
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858 | prefix_expr EDIV prefix_expr |
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859 { $$ = make_binary_op (EDIV, $1, $2, $3); } |
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860 | prefix_expr LEFTDIV prefix_expr |
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861 { $$ = make_binary_op (LEFTDIV, $1, $2, $3); } |
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862 | prefix_expr ELEFTDIV prefix_expr |
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863 { $$ = make_binary_op (ELEFTDIV, $1, $2, $3); } |
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864 ; |
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865 |
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866 colon_expr : colon_expr1 |
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867 { $$ = finish_colon_expression ($1); } |
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868 ; |
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869 |
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870 colon_expr1 : prefix_expr |
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871 { $$ = new tree_colon_expression ($1); } |
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872 | colon_expr1 ':' prefix_expr |
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873 { |
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874 if (! ($$ = $1->append ($3))) |
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875 ABORT_PARSE; |
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876 } |
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877 ; |
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878 |
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879 simple_expr : colon_expr |
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880 { $$ = $1; } |
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881 | simple_expr LSHIFT simple_expr |
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882 { $$ = make_binary_op (LSHIFT, $1, $2, $3); } |
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883 | simple_expr RSHIFT simple_expr |
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884 { $$ = make_binary_op (RSHIFT, $1, $2, $3); } |
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885 | simple_expr EXPR_LT simple_expr |
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886 { $$ = make_binary_op (EXPR_LT, $1, $2, $3); } |
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887 | simple_expr EXPR_LE simple_expr |
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888 { $$ = make_binary_op (EXPR_LE, $1, $2, $3); } |
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889 | simple_expr EXPR_EQ simple_expr |
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890 { $$ = make_binary_op (EXPR_EQ, $1, $2, $3); } |
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891 | simple_expr EXPR_GE simple_expr |
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892 { $$ = make_binary_op (EXPR_GE, $1, $2, $3); } |
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893 | simple_expr EXPR_GT simple_expr |
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894 { $$ = make_binary_op (EXPR_GT, $1, $2, $3); } |
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895 | simple_expr EXPR_NE simple_expr |
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896 { $$ = make_binary_op (EXPR_NE, $1, $2, $3); } |
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897 | simple_expr EXPR_AND simple_expr |
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898 { $$ = make_binary_op (EXPR_AND, $1, $2, $3); } |
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899 | simple_expr EXPR_OR simple_expr |
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900 { $$ = make_binary_op (EXPR_OR, $1, $2, $3); } |
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901 | simple_expr EXPR_AND_AND simple_expr |
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902 { $$ = make_boolean_op (EXPR_AND_AND, $1, $2, $3); } |
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903 | simple_expr EXPR_OR_OR simple_expr |
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904 { $$ = make_boolean_op (EXPR_OR_OR, $1, $2, $3); } |
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905 ; |
2970 | 906 |
907 // Arrange for the lexer to return CLOSE_BRACE for `]' by looking ahead | |
908 // one token for an assignment op. | |
909 | |
10315
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910 assign_lhs : simple_expr |
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911 { |
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912 $$ = new tree_argument_list ($1); |
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913 $$->mark_as_simple_assign_lhs (); |
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914 } |
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915 | '[' arg_list CLOSE_BRACE |
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916 { |
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917 $$ = $2; |
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918 lexer_flags.looking_at_matrix_or_assign_lhs = false; |
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919 for (std::set<std::string>::const_iterator p = lexer_flags.pending_local_variables.begin (); |
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920 p != lexer_flags.pending_local_variables.end (); |
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921 p++) |
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922 { |
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923 symbol_table::force_variable (*p); |
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924 } |
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925 lexer_flags.pending_local_variables.clear (); |
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926 } |
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927 ; |
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928 |
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929 assign_expr : assign_lhs '=' expression |
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930 { $$ = make_assign_op ('=', $1, $2, $3); } |
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931 | assign_lhs ADD_EQ expression |
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932 { $$ = make_assign_op (ADD_EQ, $1, $2, $3); } |
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933 | assign_lhs SUB_EQ expression |
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934 { $$ = make_assign_op (SUB_EQ, $1, $2, $3); } |
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935 | assign_lhs MUL_EQ expression |
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936 { $$ = make_assign_op (MUL_EQ, $1, $2, $3); } |
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937 | assign_lhs DIV_EQ expression |
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938 { $$ = make_assign_op (DIV_EQ, $1, $2, $3); } |
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939 | assign_lhs LEFTDIV_EQ expression |
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940 { $$ = make_assign_op (LEFTDIV_EQ, $1, $2, $3); } |
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941 | assign_lhs POW_EQ expression |
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942 { $$ = make_assign_op (POW_EQ, $1, $2, $3); } |
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943 | assign_lhs LSHIFT_EQ expression |
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944 { $$ = make_assign_op (LSHIFT_EQ, $1, $2, $3); } |
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945 | assign_lhs RSHIFT_EQ expression |
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946 { $$ = make_assign_op (RSHIFT_EQ, $1, $2, $3); } |
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947 | assign_lhs EMUL_EQ expression |
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948 { $$ = make_assign_op (EMUL_EQ, $1, $2, $3); } |
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949 | assign_lhs EDIV_EQ expression |
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950 { $$ = make_assign_op (EDIV_EQ, $1, $2, $3); } |
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951 | assign_lhs ELEFTDIV_EQ expression |
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952 { $$ = make_assign_op (ELEFTDIV_EQ, $1, $2, $3); } |
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953 | assign_lhs EPOW_EQ expression |
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954 { $$ = make_assign_op (EPOW_EQ, $1, $2, $3); } |
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955 | assign_lhs AND_EQ expression |
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956 { $$ = make_assign_op (AND_EQ, $1, $2, $3); } |
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957 | assign_lhs OR_EQ expression |
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958 { $$ = make_assign_op (OR_EQ, $1, $2, $3); } |
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959 ; |
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960 |
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961 expression : simple_expr |
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962 { $$ = $1; } |
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963 | assign_expr |
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964 { $$ = $1; } |
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965 | anon_fcn_handle |
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966 { $$ = $1; } |
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967 ; |
2970 | 968 |
969 // ================================================ | |
970 // Commands, declarations, and function definitions | |
971 // ================================================ | |
972 | |
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973 command : declaration |
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974 { $$ = $1; } |
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975 | select_command |
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976 { $$ = $1; } |
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977 | loop_command |
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978 { $$ = $1; } |
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979 | jump_command |
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980 { $$ = $1; } |
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981 | except_command |
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982 { $$ = $1; } |
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983 | function |
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984 { $$ = $1; } |
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985 | script_file |
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986 { $$ = $1; } |
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987 | classdef |
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988 { $$ = $1; } |
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989 ; |
2970 | 990 |
991 // ===================== | |
992 // Declaration statemnts | |
993 // ===================== | |
994 | |
8701
1652e39b934e
handle command names in declaration lists
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995 parsing_decl_list |
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996 : // empty |
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997 { lexer_flags.looking_at_decl_list = true; } |
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998 |
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999 declaration : GLOBAL parsing_decl_list decl1 |
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1000 { |
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1001 $$ = make_decl_command (GLOBAL, $1, $3); |
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1002 lexer_flags.looking_at_decl_list = false; |
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1003 } |
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1004 | STATIC parsing_decl_list decl1 |
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1005 { |
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1006 $$ = make_decl_command (STATIC, $1, $3); |
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1007 lexer_flags.looking_at_decl_list = false; |
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1008 } |
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1009 ; |
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1010 |
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1011 decl1 : decl2 |
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1012 { $$ = new tree_decl_init_list ($1); } |
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1013 | decl1 decl2 |
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1014 { |
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1015 $1->append ($2); |
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1016 $$ = $1; |
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1017 } |
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1018 ; |
2970 | 1019 |
7634
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fix parameter list initializer bug
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|
1020 decl_param_init : // empty |
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1021 { lexer_flags.looking_at_initializer_expression = true; } |
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1022 |
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1023 decl2 : identifier |
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1024 { $$ = new tree_decl_elt ($1); } |
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1025 | identifier '=' decl_param_init expression |
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|
1026 { |
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1027 lexer_flags.looking_at_initializer_expression = false; |
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1028 $$ = new tree_decl_elt ($1, $4); |
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1029 } |
10206
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1030 | magic_tilde |
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1031 { |
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1032 $$ = new tree_decl_elt ($1); |
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support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
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|
1033 } |
10315
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1034 ; |
2970 | 1035 |
1036 // ==================== | |
1037 // Selection statements | |
1038 // ==================== | |
1039 | |
10315
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1040 select_command : if_command |
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1041 { $$ = $1; } |
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1042 | switch_command |
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1043 { $$ = $1; } |
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1044 ; |
2970 | 1045 |
1046 // ============ | |
1047 // If statement | |
1048 // ============ | |
1049 | |
10315
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1050 if_command : IF stash_comment if_cmd_list END |
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1051 { |
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1052 if (! ($$ = finish_if_command ($1, $3, $4, $2))) |
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1053 ABORT_PARSE; |
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1054 } |
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|
1055 ; |
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1056 |
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1057 if_cmd_list : if_cmd_list1 |
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1058 { $$ = $1; } |
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1059 | if_cmd_list1 else_clause |
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|
1060 { |
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1061 $1->append ($2); |
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1062 $$ = $1; |
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1063 } |
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1064 ; |
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1065 |
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1066 if_cmd_list1 : expression opt_sep opt_list |
11091
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Matlab compatible short-circuit behavior for & and | operators
John W. Eaton <jwe@octave.org>
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|
1067 { |
5677f3f7b5fa
Matlab compatible short-circuit behavior for & and | operators
John W. Eaton <jwe@octave.org>
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changeset
|
1068 $1->mark_braindead_shortcircuit (curr_fcn_file_full_name); |
5677f3f7b5fa
Matlab compatible short-circuit behavior for & and | operators
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|
1069 |
5677f3f7b5fa
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|
1070 $$ = start_if_command ($1, $3); |
5677f3f7b5fa
Matlab compatible short-circuit behavior for & and | operators
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|
1071 } |
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1072 | if_cmd_list1 elseif_clause |
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1073 { |
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1074 $1->append ($2); |
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1075 $$ = $1; |
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1076 } |
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1077 ; |
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1078 |
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1079 elseif_clause : ELSEIF stash_comment opt_sep expression opt_sep opt_list |
11091
5677f3f7b5fa
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John W. Eaton <jwe@octave.org>
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|
1080 { |
5677f3f7b5fa
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changeset
|
1081 $4->mark_braindead_shortcircuit (curr_fcn_file_full_name); |
5677f3f7b5fa
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|
1082 |
5677f3f7b5fa
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|
1083 $$ = make_elseif_clause ($1, $4, $6, $2); |
5677f3f7b5fa
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|
1084 } |
10315
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1085 ; |
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1086 |
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1087 else_clause : ELSE stash_comment opt_sep opt_list |
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1088 { $$ = new tree_if_clause ($4, $2); } |
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1089 ; |
2970 | 1090 |
1091 // ================ | |
1092 // Switch statement | |
1093 // ================ | |
1094 | |
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1095 switch_command : SWITCH stash_comment expression opt_sep case_list END |
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1096 { |
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1097 if (! ($$ = finish_switch_command ($1, $3, $5, $6, $2))) |
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1098 ABORT_PARSE; |
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1099 } |
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1100 ; |
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1101 |
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1102 case_list : // empty |
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1103 { $$ = new tree_switch_case_list (); } |
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accept otherwise clause in switch statement without preceding case statements
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1104 | default_case |
2da532d0f41c
accept otherwise clause in switch statement without preceding case statements
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1105 { $$ = new tree_switch_case_list ($1); } |
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1106 | case_list1 |
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1107 { $$ = $1; } |
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1108 | case_list1 default_case |
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1109 { |
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1110 $1->append ($2); |
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1111 $$ = $1; |
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1112 } |
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1113 ; |
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1114 |
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1115 case_list1 : switch_case |
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1116 { $$ = new tree_switch_case_list ($1); } |
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1117 | case_list1 switch_case |
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1118 { |
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1119 $1->append ($2); |
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1120 $$ = $1; |
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1121 } |
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1122 ; |
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1123 |
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1124 switch_case : CASE stash_comment opt_sep expression opt_sep opt_list |
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1125 { $$ = make_switch_case ($1, $4, $6, $2); } |
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1126 ; |
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1127 |
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1128 default_case : OTHERWISE stash_comment opt_sep opt_list |
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1129 { |
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1130 $$ = new tree_switch_case ($4, $2); |
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1131 } |
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1132 ; |
2970 | 1133 |
1134 // ======= | |
1135 // Looping | |
1136 // ======= | |
1137 | |
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1138 loop_command : WHILE stash_comment expression opt_sep opt_list END |
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1139 { |
11091
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1140 $3->mark_braindead_shortcircuit (curr_fcn_file_full_name); |
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1141 |
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1142 if (! ($$ = make_while_command ($1, $3, $5, $6, $2))) |
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1143 ABORT_PARSE; |
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1144 } |
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1145 | DO stash_comment opt_sep opt_list UNTIL expression |
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1146 { |
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1147 if (! ($$ = make_do_until_command ($5, $4, $6, $2))) |
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1148 ABORT_PARSE; |
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1149 } |
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1150 | FOR stash_comment assign_lhs '=' expression opt_sep opt_list END |
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1151 { |
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1152 if (! ($$ = make_for_command ($1, $3, $5, $7, $8, $2))) |
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1153 ABORT_PARSE; |
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1154 } |
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1155 | FOR stash_comment '(' assign_lhs '=' expression ')' opt_sep opt_list END |
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1156 { |
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1157 if (! ($$ = make_for_command ($1, $4, $6, $9, $10, $2))) |
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1158 ABORT_PARSE; |
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1159 } |
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1160 ; |
2970 | 1161 |
1162 // ======= | |
1163 // Jumping | |
1164 // ======= | |
1165 | |
10315
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1166 jump_command : BREAK |
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1167 { |
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1168 if (! ($$ = make_break_command ($1))) |
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1169 ABORT_PARSE; |
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1170 } |
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1171 | CONTINUE |
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1172 { |
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1173 if (! ($$ = make_continue_command ($1))) |
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1174 ABORT_PARSE; |
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1175 } |
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1176 | FUNC_RET |
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1177 { |
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1178 if (! ($$ = make_return_command ($1))) |
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1179 ABORT_PARSE; |
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1180 } |
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1181 ; |
2970 | 1182 |
1183 // ========== | |
1184 // Exceptions | |
1185 // ========== | |
1186 | |
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1187 except_command : UNWIND stash_comment opt_sep opt_list CLEANUP |
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1188 stash_comment opt_sep opt_list END |
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1189 { |
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1190 if (! ($$ = make_unwind_command ($1, $4, $8, $9, $2, $6))) |
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1191 ABORT_PARSE; |
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1192 } |
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1193 | TRY stash_comment opt_sep opt_list CATCH |
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1194 stash_comment opt_sep opt_list END |
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1195 { |
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1196 if (! ($$ = make_try_command ($1, $4, $8, $9, $2, $6))) |
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1197 ABORT_PARSE; |
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1198 } |
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1199 | TRY stash_comment opt_sep opt_list END |
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1200 { |
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1201 if (! ($$ = make_try_command ($1, $4, 0, $5, $2, 0))) |
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1202 ABORT_PARSE; |
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1203 } |
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1204 ; |
2970 | 1205 |
1206 // =========================================== | |
1207 // Some `subroutines' for function definitions | |
1208 // =========================================== | |
1209 | |
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1210 push_fcn_symtab : // empty |
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1211 { |
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1212 current_function_depth++; |
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1213 |
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1214 if (max_function_depth < current_function_depth) |
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1215 max_function_depth = current_function_depth; |
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1216 |
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1217 symtab_context.push (symbol_table::current_scope ()); |
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1218 symbol_table::set_scope (symbol_table::alloc_scope ()); |
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1219 |
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1220 if (! reading_script_file && current_function_depth == 1 |
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1221 && ! parsing_subfunctions) |
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1222 primary_fcn_scope = symbol_table::current_scope (); |
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1223 |
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1224 if (reading_script_file && current_function_depth > 1) |
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1225 yyerror ("nested functions not implemented in this context"); |
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1226 } |
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1227 ; |
2970 | 1228 |
1229 // =========================== | |
1230 // List of function parameters | |
1231 // =========================== | |
1232 | |
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1233 param_list_beg : '(' |
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1234 { |
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1235 lexer_flags.looking_at_parameter_list = true; |
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1236 |
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1237 if (lexer_flags.looking_at_function_handle) |
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1238 { |
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1239 symtab_context.push (symbol_table::current_scope ()); |
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1240 symbol_table::set_scope (symbol_table::alloc_scope ()); |
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1241 lexer_flags.looking_at_function_handle--; |
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1242 } |
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1243 } |
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1244 ; |
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1245 |
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1246 param_list_end : ')' |
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1247 { |
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1248 lexer_flags.looking_at_parameter_list = false; |
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1249 lexer_flags.looking_for_object_index = false; |
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1250 } |
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1251 ; |
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1252 |
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|
1253 param_list : param_list_beg param_list1 param_list_end |
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1254 { |
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1255 lexer_flags.quote_is_transpose = false; |
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1256 $$ = $2; |
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|
1257 } |
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|
1258 | param_list_beg error |
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1259 { |
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1260 yyerror ("invalid parameter list"); |
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1261 $$ = 0; |
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|
1262 ABORT_PARSE; |
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1263 } |
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|
1264 ; |
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|
1265 |
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1266 param_list1 : // empty |
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1267 { $$ = 0; } |
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|
1268 | param_list2 |
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|
1269 { |
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1270 $1->mark_as_formal_parameters (); |
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1271 if ($1->validate (tree_parameter_list::in)) |
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1272 $$ = $1; |
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|
1273 else |
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|
1274 ABORT_PARSE; |
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|
1275 } |
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|
1276 ; |
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|
1277 |
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1278 param_list2 : decl2 |
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1279 { $$ = new tree_parameter_list ($1); } |
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1280 | param_list2 ',' decl2 |
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1281 { |
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1282 $1->append ($3); |
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1283 $$ = $1; |
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1284 } |
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|
1285 ; |
2970 | 1286 |
1287 // =================================== | |
1288 // List of function return value names | |
1289 // =================================== | |
1290 | |
10315
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1291 return_list : '[' ']' |
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|
1292 { |
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1293 lexer_flags.looking_at_return_list = false; |
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|
1294 $$ = new tree_parameter_list (); |
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|
1295 } |
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|
1296 | return_list1 |
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|
1297 { |
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1298 lexer_flags.looking_at_return_list = false; |
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1299 if ($1->validate (tree_parameter_list::out)) |
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|
1300 $$ = $1; |
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|
1301 else |
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|
1302 ABORT_PARSE; |
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|
1303 } |
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1304 | '[' return_list1 ']' |
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1305 { |
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1306 lexer_flags.looking_at_return_list = false; |
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|
1307 if ($2->validate (tree_parameter_list::out)) |
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1308 $$ = $2; |
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|
1309 else |
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|
1310 ABORT_PARSE; |
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|
1311 } |
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|
1312 ; |
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|
1313 |
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|
1314 return_list1 : identifier |
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1315 { $$ = new tree_parameter_list (new tree_decl_elt ($1)); } |
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1316 | return_list1 ',' identifier |
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|
1317 { |
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|
1318 $1->append (new tree_decl_elt ($3)); |
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|
1319 $$ = $1; |
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|
1320 } |
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|
1321 ; |
2970 | 1322 |
7715
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parse scripts completely before executing
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diff
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|
1323 // =========== |
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|
1324 // Script file |
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parse scripts completely before executing
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diff
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|
1325 // =========== |
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|
1326 |
10315
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1327 script_file : SCRIPT_FILE opt_list END_OF_INPUT |
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1328 { |
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|
1329 tree_statement *end_of_script |
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1330 = make_end ("endscript", input_line_number, |
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|
1331 current_input_column); |
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|
1332 |
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|
1333 make_script ($2, end_of_script); |
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|
1334 |
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|
1335 $$ = 0; |
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|
1336 } |
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|
1337 ; |
7715
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parse scripts completely before executing
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|
1338 |
9474
25ed2d6aacf6
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David Grundberg <individ@acc.umu.se>
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9471
diff
changeset
|
1339 // ============= |
25ed2d6aacf6
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diff
changeset
|
1340 // Function file |
25ed2d6aacf6
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diff
changeset
|
1341 // ============= |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
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diff
changeset
|
1342 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
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diff
changeset
|
1343 function_file : FUNCTION_FILE function_list opt_sep END_OF_INPUT |
10315
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1344 { $$ = 0; } |
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|
1345 ; |
9474
25ed2d6aacf6
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David Grundberg <individ@acc.umu.se>
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diff
changeset
|
1346 |
25ed2d6aacf6
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changeset
|
1347 function_list : function |
10315
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|
1348 | function_list sep function |
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|
1349 ; |
9474
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Parse nested functions more accurately.
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diff
changeset
|
1350 |
2970 | 1351 // =================== |
1352 // Function definition | |
1353 // =================== | |
1354 | |
10315
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1355 function_beg : push_fcn_symtab FCN stash_comment |
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|
1356 { |
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|
1357 $$ = $3; |
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|
1358 |
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1359 if (reading_classdef_file || lexer_flags.parsing_classdef) |
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|
1360 lexer_flags.maybe_classdef_get_set_method = true; |
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|
1361 } |
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|
1362 ; |
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|
1363 |
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1364 function : function_beg function1 |
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1365 { |
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1366 $$ = finish_function (0, $2, $1); |
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1367 recover_from_parsing_function (); |
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1368 } |
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1369 | function_beg return_list '=' function1 |
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1370 { |
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1371 $$ = finish_function ($2, $4, $1); |
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1372 recover_from_parsing_function (); |
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|
1373 } |
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|
1374 ; |
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|
1375 |
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|
1376 fcn_name : identifier |
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|
1377 { |
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|
1378 std::string id_name = $1->name (); |
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|
1379 |
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1380 lexer_flags.parsed_function_name = true; |
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1381 lexer_flags.maybe_classdef_get_set_method = false; |
9476 | 1382 |
10315
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|
1383 $$ = $1; |
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|
1384 } |
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|
1385 | GET '.' identifier |
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|
1386 { |
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|
1387 lexer_flags.maybe_classdef_get_set_method = false; |
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|
1388 $$ = $3; |
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|
1389 } |
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|
1390 | SET '.' identifier |
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1391 { |
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1392 lexer_flags.maybe_classdef_get_set_method = false; |
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1393 $$ = $3; |
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1394 } |
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1395 ; |
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1396 |
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1397 function1 : fcn_name function2 |
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1398 { |
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1399 std::string fname = $1->name (); |
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1400 |
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1401 delete $1; |
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|
1402 |
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1403 if (! ($$ = frob_function (fname, $2))) |
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1404 ABORT_PARSE; |
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|
1405 } |
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|
1406 ; |
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1407 |
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1408 function2 : param_list opt_sep opt_list function_end |
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1409 { $$ = start_function ($1, $3, $4); } |
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1410 | opt_sep opt_list function_end |
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1411 { $$ = start_function (0, $2, $3); } |
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1412 ; |
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1413 |
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1414 function_end : END |
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1415 { |
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1416 endfunction_found = true; |
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1417 if (end_token_ok ($1, token::function_end)) |
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1418 $$ = make_end ("endfunction", $1->line (), $1->column ()); |
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1419 else |
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1420 ABORT_PARSE; |
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|
1421 } |
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1422 | END_OF_INPUT |
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1423 { |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
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9471
diff
changeset
|
1424 // A lot of tests are based on the assumption that this is OK |
10315
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1425 // if (reading_script_file) |
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1426 // { |
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1427 // yyerror ("function body open at end of script"); |
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1428 // YYABORT; |
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1429 // } |
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1430 |
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1431 if (endfunction_found) |
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1432 { |
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1433 yyerror ("inconsistent function endings -- " |
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1434 "if one function is explicitly ended, " |
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1435 "so must all the others"); |
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|
1436 YYABORT; |
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|
1437 } |
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1438 |
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1439 if (! (reading_fcn_file || reading_script_file |
10130
0c3609dd34cf
oct-parse.yy (eval_string): save and set reading_{script,fcn,classdef}_file vars
John W. Eaton <jwe@octave.org>
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diff
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|
1440 || get_input_from_eval_string)) |
10315
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1441 { |
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1442 yyerror ("function body open at end of input"); |
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|
1443 YYABORT; |
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1444 } |
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1445 |
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1446 if (reading_classdef_file) |
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1447 { |
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1448 yyerror ("classdef body open at end of input"); |
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|
1449 YYABORT; |
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|
1450 } |
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|
1451 |
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1452 $$ = make_end ("endfunction", input_line_number, |
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|
1453 current_input_column); |
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|
1454 } |
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|
1455 ; |
2970 | 1456 |
9476 | 1457 // ======== |
1458 // Classdef | |
1459 // ======== | |
1460 | |
10315
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1461 classdef_beg : CLASSDEF stash_comment |
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|
1462 { |
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|
1463 $$ = 0; |
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|
1464 lexer_flags.parsing_classdef = true; |
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1465 } |
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|
1466 ; |
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|
1467 |
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|
1468 classdef_end : END |
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|
1469 { |
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|
1470 lexer_flags.parsing_classdef = false; |
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1471 |
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1472 if (end_token_ok ($1, token::classdef_end)) |
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1473 $$ = make_end ("endclassdef", $1->line (), $1->column ()); |
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|
1474 else |
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|
1475 ABORT_PARSE; |
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|
1476 } |
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|
1477 ; |
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|
1478 |
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1479 classdef1 : classdef_beg opt_attr_list identifier opt_superclasses |
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|
1480 { $$ = 0; } |
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|
1481 ; |
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|
1482 |
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1483 classdef : classdef1 '\n' class_body '\n' stash_comment classdef_end |
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1484 { $$ = 0; } |
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|
1485 ; |
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|
1486 |
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1487 opt_attr_list : // empty |
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1488 { $$ = 0; } |
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|
1489 | '(' attr_list ')' |
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1490 { $$ = 0; } |
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|
1491 ; |
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|
1492 |
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|
1493 attr_list : attr |
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1494 { $$ = 0; } |
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1495 | attr_list ',' attr |
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1496 { $$ = 0; } |
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|
1497 ; |
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1498 |
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1499 attr : identifier |
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1500 { $$ = 0; } |
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1501 | identifier '=' decl_param_init expression |
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1502 { $$ = 0; } |
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1503 | EXPR_NOT identifier |
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1504 { $$ = 0; } |
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1505 ; |
9476 | 1506 |
1507 opt_superclasses | |
10315
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1508 : // empty |
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1509 { $$ = 0; } |
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1510 | superclasses |
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1511 { $$ = 0; } |
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|
1512 ; |
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1513 |
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1514 superclasses : EXPR_LT identifier '.' identifier |
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1515 { $$ = 0; } |
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|
1516 | EXPR_LT identifier |
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1517 { $$ = 0; } |
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1518 | superclasses EXPR_AND identifier '.' identifier |
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1519 { $$ = 0; } |
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1520 | superclasses EXPR_AND identifier |
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1521 { $$ = 0; } |
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|
1522 ; |
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1523 |
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1524 class_body : properties_block |
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1525 { $$ = 0; } |
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1526 | methods_block |
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|
1527 { $$ = 0; } |
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|
1528 | events_block |
57a59eae83cc
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|
1529 { $$ = 0; } |
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1530 | class_body '\n' properties_block |
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1531 { $$ = 0; } |
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1532 | class_body '\n' methods_block |
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1533 { $$ = 0; } |
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1534 | class_body '\n' events_block |
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|
1535 { $$ = 0; } |
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|
1536 ; |
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1537 |
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1538 properties_beg : PROPERTIES stash_comment |
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1539 { $$ = 0; } |
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|
1540 ; |
9476 | 1541 |
1542 properties_block | |
10315
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1543 : properties_beg opt_attr_list '\n' properties_list '\n' END |
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1544 { $$ = 0; } |
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|
1545 ; |
9476 | 1546 |
1547 properties_list | |
10315
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|
1548 : class_property |
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|
1549 { $$ = 0; } |
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1550 | properties_list '\n' class_property |
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|
1551 { $$ = 0; } |
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|
1552 ; |
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1553 |
57a59eae83cc
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1554 class_property : identifier |
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1555 { $$ = 0; } |
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1556 | identifier '=' decl_param_init expression ';' |
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1557 { $$ = 0; } |
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|
1558 ; |
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1559 |
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1560 methods_beg : METHODS stash_comment |
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1561 { $$ = 0; } |
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|
1562 ; |
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1563 |
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1564 methods_block : methods_beg opt_attr_list '\n' methods_list '\n' END |
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1565 { $$ = 0; } |
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|
1566 ; |
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|
1567 |
57a59eae83cc
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|
1568 methods_list : function |
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1569 { $$ = 0; } |
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1570 | methods_list '\n' function |
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|
1571 { $$ = 0; } |
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|
1572 ; |
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|
1573 |
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1574 events_beg : EVENTS stash_comment |
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1575 { $$ = 0; } |
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|
1576 ; |
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|
1577 |
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1578 events_block : events_beg opt_attr_list '\n' events_list '\n' END |
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|
1579 { $$ = 0; } |
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|
1580 ; |
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|
1581 |
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1582 events_list : class_event |
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1583 { $$ = 0; } |
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1584 | events_list '\n' class_event |
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|
1585 { $$ = 0; } |
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|
1586 ; |
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|
1587 |
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|
1588 class_event : identifier |
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|
1589 { $$ = 0; } |
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|
1590 ; |
9476 | 1591 |
2970 | 1592 // ============= |
1593 // Miscellaneous | |
1594 // ============= | |
1595 | |
10315
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1596 stash_comment : // empty |
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1597 { $$ = octave_comment_buffer::get_comment (); } |
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1598 ; |
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1599 |
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1600 parse_error : LEXICAL_ERROR |
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1601 { yyerror ("parse error"); } |
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1602 | error |
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1603 ; |
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1604 |
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1605 sep_no_nl : ',' |
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1606 { $$ = ','; } |
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1607 | ';' |
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1608 { $$ = ';'; } |
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1609 | sep_no_nl ',' |
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1610 { $$ = $1; } |
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1611 | sep_no_nl ';' |
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1612 { $$ = $1; } |
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1613 ; |
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1614 |
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1615 opt_sep_no_nl : // empty |
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1616 { $$ = 0; } |
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1617 | sep_no_nl |
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1618 { $$ = $1; } |
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|
1619 ; |
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1620 |
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1621 sep : ',' |
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1622 { $$ = ','; } |
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1623 | ';' |
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1624 { $$ = ';'; } |
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1625 | '\n' |
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1626 { $$ = '\n'; } |
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1627 | sep ',' |
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1628 { $$ = $1; } |
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1629 | sep ';' |
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1630 { $$ = $1; } |
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1631 | sep '\n' |
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1632 { $$ = $1; } |
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|
1633 ; |
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1634 |
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1635 opt_sep : // empty |
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1636 { $$ = 0; } |
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1637 | sep |
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1638 { $$ = $1; } |
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1639 ; |
2525 | 1640 |
1 | 1641 %% |
1642 | |
666 | 1643 // Generic error messages. |
1644 | |
1 | 1645 static void |
2805 | 1646 yyerror (const char *s) |
1 | 1647 { |
143 | 1648 int err_col = current_input_column - 1; |
1 | 1649 |
5765 | 1650 std::ostringstream output_buf; |
1 | 1651 |
9476 | 1652 if (reading_fcn_file || reading_script_file || reading_classdef_file) |
1005 | 1653 output_buf << "parse error near line " << input_line_number |
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1654 << " of file " << curr_fcn_file_full_name; |
1005 | 1655 else |
1656 output_buf << "parse error:"; | |
581 | 1657 |
1005 | 1658 if (s && strcmp (s, "parse error") != 0) |
1659 output_buf << "\n\n " << s; | |
1660 | |
1661 output_buf << "\n\n"; | |
1 | 1662 |
1755 | 1663 if (! current_input_line.empty ()) |
1 | 1664 { |
1755 | 1665 size_t len = current_input_line.length (); |
1060 | 1666 |
1755 | 1667 if (current_input_line[len-1] == '\n') |
1668 current_input_line.resize (len-1); | |
1005 | 1669 |
4051 | 1670 // Print the line, maybe with a pointer near the error token. |
1005 | 1671 |
1755 | 1672 output_buf << ">>> " << current_input_line << "\n"; |
1060 | 1673 |
1674 if (err_col == 0) | |
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1675 err_col = len; |
1060 | 1676 |
1677 for (int i = 0; i < err_col + 3; i++) | |
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1678 output_buf << " "; |
1060 | 1679 |
1680 output_buf << "^"; | |
1 | 1681 } |
1005 | 1682 |
5765 | 1683 output_buf << "\n"; |
1684 | |
1685 std::string msg = output_buf.str (); | |
1686 | |
1687 parse_error ("%s", msg.c_str ()); | |
1 | 1688 } |
1689 | |
666 | 1690 // Error mesages for mismatched end tokens. |
1691 | |
496 | 1692 static void |
2805 | 1693 end_error (const char *type, token::end_tok_type ettype, int l, int c) |
496 | 1694 { |
2805 | 1695 static const char *fmt |
1696 = "`%s' command matched by `%s' near line %d column %d"; | |
496 | 1697 |
1698 switch (ettype) | |
1699 { | |
1700 case token::simple_end: | |
1701 error (fmt, type, "end", l, c); | |
1702 break; | |
777 | 1703 |
496 | 1704 case token::for_end: |
1705 error (fmt, type, "endfor", l, c); | |
1706 break; | |
777 | 1707 |
496 | 1708 case token::function_end: |
1709 error (fmt, type, "endfunction", l, c); | |
1710 break; | |
777 | 1711 |
9476 | 1712 case token::classdef_end: |
1713 error (fmt, type, "endclassdef", l, c); | |
1714 break; | |
1715 | |
496 | 1716 case token::if_end: |
1717 error (fmt, type, "endif", l, c); | |
1718 break; | |
777 | 1719 |
3233 | 1720 case token::switch_end: |
1721 error (fmt, type, "endswitch", l, c); | |
1722 break; | |
1723 | |
496 | 1724 case token::while_end: |
1725 error (fmt, type, "endwhile", l, c); | |
1726 break; | |
777 | 1727 |
5400 | 1728 case token::try_catch_end: |
1729 error (fmt, type, "end_try_catch", l, c); | |
1730 break; | |
1731 | |
1371 | 1732 case token::unwind_protect_end: |
1733 error (fmt, type, "end_unwind_protect", l, c); | |
1734 break; | |
1735 | |
496 | 1736 default: |
1737 panic_impossible (); | |
1738 break; | |
1739 } | |
1740 } | |
1741 | |
666 | 1742 // Check to see that end tokens are properly matched. |
1743 | |
2857 | 1744 static bool |
1745 end_token_ok (token *tok, token::end_tok_type expected) | |
143 | 1746 { |
2857 | 1747 bool retval = true; |
1748 | |
143 | 1749 token::end_tok_type ettype = tok->ettype (); |
2857 | 1750 |
143 | 1751 if (ettype != expected && ettype != token::simple_end) |
1752 { | |
2857 | 1753 retval = false; |
1754 | |
143 | 1755 yyerror ("parse error"); |
1756 | |
1757 int l = tok->line (); | |
1758 int c = tok->column (); | |
1759 | |
1760 switch (expected) | |
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1761 { |
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1762 case token::classdef_end: |
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1763 end_error ("classdef", ettype, l, c); |
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1764 break; |
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1765 |
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1766 case token::for_end: |
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1767 end_error ("for", ettype, l, c); |
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1768 break; |
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1769 |
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1770 case token::function_end: |
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1771 end_error ("function", ettype, l, c); |
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1772 break; |
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1773 |
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1774 case token::if_end: |
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1775 end_error ("if", ettype, l, c); |
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1776 break; |
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1777 |
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1778 case token::try_catch_end: |
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1779 end_error ("try", ettype, l, c); |
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1780 break; |
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1781 |
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1782 case token::switch_end: |
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1783 end_error ("switch", ettype, l, c); |
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1784 break; |
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1785 |
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1786 case token::unwind_protect_end: |
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1787 end_error ("unwind_protect", ettype, l, c); |
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1788 break; |
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1789 |
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1790 case token::while_end: |
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1791 end_error ("while", ettype, l, c); |
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1792 break; |
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1793 |
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1794 default: |
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1795 panic_impossible (); |
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1796 break; |
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1797 } |
143 | 1798 } |
2857 | 1799 |
1800 return retval; | |
143 | 1801 } |
1802 | |
666 | 1803 // Maybe print a warning if an assignment expression is used as the |
1804 // test in a logical expression. | |
1805 | |
496 | 1806 static void |
1807 maybe_warn_assign_as_truth_value (tree_expression *expr) | |
1 | 1808 { |
5781 | 1809 if (expr->is_assignment_expression () |
2961 | 1810 && expr->paren_count () < 2) |
1 | 1811 { |
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1812 if (curr_fcn_file_full_name.empty ()) |
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1813 warning_with_id |
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1814 ("Octave:assign-as-truth-value", |
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1815 "suggest parenthesis around assignment used as truth value"); |
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1816 else |
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1817 warning_with_id |
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1818 ("Octave:assign-as-truth-value", |
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1819 "suggest parenthesis around assignment used as truth value near line %d, column %d in file `%s'", |
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1820 expr->line (), expr->column (), curr_fcn_file_full_name.c_str ()); |
1 | 1821 } |
1822 } | |
578 | 1823 |
2764 | 1824 // Maybe print a warning about switch labels that aren't constants. |
1825 | |
1826 static void | |
1827 maybe_warn_variable_switch_label (tree_expression *expr) | |
1828 { | |
5781 | 1829 if (! expr->is_constant ()) |
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1830 { |
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1831 if (curr_fcn_file_full_name.empty ()) |
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1832 warning_with_id ("Octave:variable-switch-label", |
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1833 "variable switch label"); |
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1834 else |
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1835 warning_with_id |
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1836 ("Octave:variable-switch-label", |
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1837 "variable switch label near line %d, column %d in file `%s'", |
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1838 expr->line (), expr->column (), curr_fcn_file_full_name.c_str ()); |
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1839 } |
2764 | 1840 } |
1841 | |
2533 | 1842 static tree_expression * |
1843 fold (tree_binary_expression *e) | |
1844 { | |
3110 | 1845 tree_expression *retval = e; |
1846 | |
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1847 unwind_protect frame; |
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1848 |
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1849 frame.protect_var (error_state); |
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1850 frame.protect_var (warning_state); |
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1851 |
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1852 frame.protect_var (discard_error_messages); |
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1853 frame.protect_var (discard_warning_messages); |
4452 | 1854 |
3815 | 1855 discard_error_messages = true; |
4452 | 1856 discard_warning_messages = true; |
2533 | 1857 |
1858 tree_expression *op1 = e->lhs (); | |
1859 tree_expression *op2 = e->rhs (); | |
1860 | |
5161 | 1861 octave_value::binary_op op_type = e->op_type (); |
1862 | |
1863 if (op1->is_constant () && op2->is_constant () | |
5781 | 1864 && (! ((warning_enabled ("Octave:associativity-change") |
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1865 && (op_type == POW || op_type == EPOW)) |
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1866 || (warning_enabled ("Octave:precedence-change") |
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1867 && (op_type == EXPR_OR || op_type == EXPR_OR_OR))))) |
2533 | 1868 { |
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1869 octave_value tmp = e->rvalue1 (); |
2533 | 1870 |
3489 | 1871 if (! (error_state || warning_state)) |
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1872 { |
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1873 tree_constant *tc_retval |
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1874 = new tree_constant (tmp, op1->line (), op1->column ()); |
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1875 |
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1876 std::ostringstream buf; |
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1877 |
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1878 tree_print_code tpc (buf); |
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1879 |
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1880 e->accept (tpc); |
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1881 |
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1882 tc_retval->stash_original_text (buf.str ()); |
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1883 |
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1884 delete e; |
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1885 |
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1886 retval = tc_retval; |
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1887 } |
2533 | 1888 } |
3110 | 1889 |
3292 | 1890 return retval; |
1891 } | |
1892 | |
1893 static tree_expression * | |
1894 fold (tree_unary_expression *e) | |
1895 { | |
1896 tree_expression *retval = e; | |
1897 | |
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1898 unwind_protect frame; |
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1899 |
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1900 frame.protect_var (error_state); |
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1901 frame.protect_var (warning_state); |
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1902 |
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1903 frame.protect_var (discard_error_messages); |
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1904 frame.protect_var (discard_warning_messages); |
4452 | 1905 |
3815 | 1906 discard_error_messages = true; |
4452 | 1907 discard_warning_messages = true; |
3292 | 1908 |
1909 tree_expression *op = e->operand (); | |
1910 | |
1911 if (op->is_constant ()) | |
1912 { | |
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1913 octave_value tmp = e->rvalue1 (); |
3292 | 1914 |
3489 | 1915 if (! (error_state || warning_state)) |
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1916 { |
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1917 tree_constant *tc_retval |
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1918 = new tree_constant (tmp, op->line (), op->column ()); |
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1919 |
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1920 std::ostringstream buf; |
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1921 |
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1922 tree_print_code tpc (buf); |
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1923 |
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1924 e->accept (tpc); |
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1925 |
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1926 tc_retval->stash_original_text (buf.str ()); |
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1927 |
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1928 delete e; |
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1929 |
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1930 retval = tc_retval; |
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1931 } |
3292 | 1932 } |
1933 | |
2533 | 1934 return retval; |
1935 } | |
1936 | |
1623 | 1937 // Finish building a range. |
1938 | |
1939 static tree_expression * | |
1940 finish_colon_expression (tree_colon_expression *e) | |
1941 { | |
3110 | 1942 tree_expression *retval = e; |
1943 | |
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1944 unwind_protect frame; |
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1945 |
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1946 frame.protect_var (error_state); |
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1947 frame.protect_var (warning_state); |
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1948 |
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1949 frame.protect_var (discard_error_messages); |
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1950 frame.protect_var (discard_warning_messages); |
4452 | 1951 |
3815 | 1952 discard_error_messages = true; |
4452 | 1953 discard_warning_messages = true; |
1623 | 1954 |
2533 | 1955 tree_expression *base = e->base (); |
1956 tree_expression *limit = e->limit (); | |
1957 tree_expression *incr = e->increment (); | |
1958 | |
2970 | 1959 if (base) |
1623 | 1960 { |
2970 | 1961 if (limit) |
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1962 { |
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1963 if (base->is_constant () && limit->is_constant () |
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1964 && (! incr || (incr && incr->is_constant ()))) |
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1965 { |
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1966 octave_value tmp = e->rvalue1 (); |
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1967 |
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1968 if (! (error_state || warning_state)) |
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1969 { |
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1970 tree_constant *tc_retval |
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1971 = new tree_constant (tmp, base->line (), base->column ()); |
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1972 |
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1973 std::ostringstream buf; |
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1974 |
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1975 tree_print_code tpc (buf); |
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1976 |
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1977 e->accept (tpc); |
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1978 |
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1979 tc_retval->stash_original_text (buf.str ()); |
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1980 |
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1981 delete e; |
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1982 |
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1983 retval = tc_retval; |
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1984 } |
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1985 } |
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1986 } |
2533 | 1987 else |
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1988 { |
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1989 e->preserve_base (); |
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1990 delete e; |
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1991 |
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1992 // FIXME -- need to attempt constant folding here |
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1993 // too (we need a generic way to do that). |
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1994 retval = base; |
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1995 } |
1623 | 1996 } |
1997 | |
1998 return retval; | |
1999 } | |
2000 | |
1607 | 2001 // Make a constant. |
2002 | |
2375 | 2003 static tree_constant * |
1607 | 2004 make_constant (int op, token *tok_val) |
2005 { | |
2006 int l = tok_val->line (); | |
2007 int c = tok_val->column (); | |
2008 | |
3216 | 2009 tree_constant *retval = 0; |
1607 | 2010 |
2011 switch (op) | |
2012 { | |
2013 case NUM: | |
2533 | 2014 { |
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2015 octave_value tmp (tok_val->number ()); |
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2016 retval = new tree_constant (tmp, l, c); |
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2017 retval->stash_original_text (tok_val->text_rep ()); |
2533 | 2018 } |
1607 | 2019 break; |
2020 | |
2021 case IMAG_NUM: | |
2022 { | |
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2023 octave_value tmp (Complex (0.0, tok_val->number ())); |
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2024 retval = new tree_constant (tmp, l, c); |
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2025 retval->stash_original_text (tok_val->text_rep ()); |
1607 | 2026 } |
2027 break; | |
2028 | |
5279 | 2029 case DQ_STRING: |
2030 case SQ_STRING: | |
2883 | 2031 { |
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2032 std::string txt = tok_val->text (); |
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2033 |
8150
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2034 char delim = op == DQ_STRING ? '"' : '\''; |
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2035 octave_value tmp (txt, delim); |
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2036 |
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2037 if (txt.empty ()) |
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2038 { |
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2039 if (op == DQ_STRING) |
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2040 tmp = octave_null_str::instance; |
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2041 else |
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2042 tmp = octave_null_sq_str::instance; |
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2043 } |
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2044 |
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2045 retval = new tree_constant (tmp, l, c); |
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2046 |
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2047 if (op == DQ_STRING) |
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2048 txt = undo_string_escapes (txt); |
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2049 |
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2050 // FIXME -- maybe this should also be handled by |
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2051 // tok_val->text_rep () for character strings? |
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2052 retval->stash_original_text (delim + txt + delim); |
2883 | 2053 } |
1607 | 2054 break; |
2055 | |
2056 default: | |
2057 panic_impossible (); | |
2058 break; | |
2059 } | |
2060 | |
2061 return retval; | |
2062 } | |
2063 | |
4342 | 2064 // Make a function handle. |
2065 | |
2066 static tree_fcn_handle * | |
2067 make_fcn_handle (token *tok_val) | |
2068 { | |
2069 int l = tok_val->line (); | |
2070 int c = tok_val->column (); | |
2071 | |
2072 tree_fcn_handle *retval = new tree_fcn_handle (tok_val->text (), l, c); | |
2073 | |
2074 return retval; | |
2075 } | |
2076 | |
4935 | 2077 // Make an anonymous function handle. |
2078 | |
5861 | 2079 static tree_anon_fcn_handle * |
4935 | 2080 make_anon_fcn_handle (tree_parameter_list *param_list, tree_statement *stmt) |
2081 { | |
5775 | 2082 // FIXME -- need to get these from the location of the @ symbol. |
4935 | 2083 |
2084 int l = -1; | |
2085 int c = -1; | |
2086 | |
2087 tree_parameter_list *ret_list = 0; | |
2088 | |
7336 | 2089 symbol_table::scope_id fcn_scope = symbol_table::current_scope (); |
5861 | 2090 |
2091 if (symtab_context.empty ()) | |
2092 panic_impossible (); | |
2093 | |
7336 | 2094 symbol_table::set_scope (symtab_context.top ()); |
5861 | 2095 |
2096 symtab_context.pop (); | |
2097 | |
7351 | 2098 stmt->set_print_flag (false); |
4935 | 2099 |
2100 tree_statement_list *body = new tree_statement_list (stmt); | |
2101 | |
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2102 body->mark_as_anon_function_body (); |
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2103 |
5861 | 2104 tree_anon_fcn_handle *retval |
7336 | 2105 = new tree_anon_fcn_handle (param_list, ret_list, body, fcn_scope, l, c); |
4935 | 2106 |
2107 return retval; | |
2108 } | |
2109 | |
5161 | 2110 static void |
2111 maybe_warn_associativity_change (tree_expression *op) | |
2112 { | |
5781 | 2113 if (op->paren_count () == 0 && op->is_binary_expression ()) |
5161 | 2114 { |
2115 tree_binary_expression *e | |
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2116 = dynamic_cast<tree_binary_expression *> (op); |
5161 | 2117 |
2118 octave_value::binary_op op_type = e->op_type (); | |
2119 | |
2120 if (op_type == octave_value::op_pow | |
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2121 || op_type == octave_value::op_el_pow) |
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2122 { |
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2123 std::string op_str = octave_value::binary_op_as_string (op_type); |
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2124 |
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2125 if (curr_fcn_file_full_name.empty ()) |
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2126 warning_with_id |
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2127 ("Octave:associativity-change", |
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2128 "meaning may have changed due to change in associativity for %s operator", |
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2129 op_str.c_str ()); |
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2130 else |
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2131 warning_with_id |
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2132 ("Octave:associativity-change", |
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2133 "meaning may have changed due to change in associativity for %s operator near line %d, column %d in file `%s'", |
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2134 op_str.c_str (), op->line (), op->column (), |
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2135 curr_fcn_file_full_name.c_str ()); |
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2136 } |
5161 | 2137 } |
2138 } | |
2139 | |
666 | 2140 // Build a binary expression. |
2141 | |
578 | 2142 static tree_expression * |
2143 make_binary_op (int op, tree_expression *op1, token *tok_val, | |
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2144 tree_expression *op2) |
578 | 2145 { |
2883 | 2146 octave_value::binary_op t = octave_value::unknown_binary_op; |
1623 | 2147 |
578 | 2148 switch (op) |
2149 { | |
2150 case POW: | |
3525 | 2151 t = octave_value::op_pow; |
5161 | 2152 maybe_warn_associativity_change (op1); |
578 | 2153 break; |
777 | 2154 |
578 | 2155 case EPOW: |
3525 | 2156 t = octave_value::op_el_pow; |
5161 | 2157 maybe_warn_associativity_change (op1); |
578 | 2158 break; |
777 | 2159 |
578 | 2160 case '+': |
3525 | 2161 t = octave_value::op_add; |
578 | 2162 break; |
777 | 2163 |
578 | 2164 case '-': |
3525 | 2165 t = octave_value::op_sub; |
578 | 2166 break; |
777 | 2167 |
578 | 2168 case '*': |
3525 | 2169 t = octave_value::op_mul; |
578 | 2170 break; |
777 | 2171 |
578 | 2172 case '/': |
3525 | 2173 t = octave_value::op_div; |
578 | 2174 break; |
777 | 2175 |
578 | 2176 case EMUL: |
3525 | 2177 t = octave_value::op_el_mul; |
578 | 2178 break; |
777 | 2179 |
578 | 2180 case EDIV: |
3525 | 2181 t = octave_value::op_el_div; |
578 | 2182 break; |
777 | 2183 |
578 | 2184 case LEFTDIV: |
3525 | 2185 t = octave_value::op_ldiv; |
578 | 2186 break; |
777 | 2187 |
578 | 2188 case ELEFTDIV: |
3525 | 2189 t = octave_value::op_el_ldiv; |
578 | 2190 break; |
777 | 2191 |
2899 | 2192 case LSHIFT: |
3525 | 2193 t = octave_value::op_lshift; |
2899 | 2194 break; |
2195 | |
2196 case RSHIFT: | |
3525 | 2197 t = octave_value::op_rshift; |
2899 | 2198 break; |
2199 | |
578 | 2200 case EXPR_LT: |
3525 | 2201 t = octave_value::op_lt; |
578 | 2202 break; |
777 | 2203 |
578 | 2204 case EXPR_LE: |
3525 | 2205 t = octave_value::op_le; |
578 | 2206 break; |
777 | 2207 |
578 | 2208 case EXPR_EQ: |
3525 | 2209 t = octave_value::op_eq; |
578 | 2210 break; |
777 | 2211 |
578 | 2212 case EXPR_GE: |
3525 | 2213 t = octave_value::op_ge; |
578 | 2214 break; |
777 | 2215 |
578 | 2216 case EXPR_GT: |
3525 | 2217 t = octave_value::op_gt; |
578 | 2218 break; |
777 | 2219 |
578 | 2220 case EXPR_NE: |
3525 | 2221 t = octave_value::op_ne; |
578 | 2222 break; |
777 | 2223 |
578 | 2224 case EXPR_AND: |
3525 | 2225 t = octave_value::op_el_and; |
578 | 2226 break; |
777 | 2227 |
578 | 2228 case EXPR_OR: |
3525 | 2229 t = octave_value::op_el_or; |
5781 | 2230 if (op2->paren_count () == 0 && op2->is_binary_expression ()) |
4023 | 2231 { |
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2232 tree_binary_expression *e |
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2233 = dynamic_cast<tree_binary_expression *> (op2); |
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2234 |
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2235 if (e->op_type () == octave_value::op_el_and) |
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2236 { |
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2237 if (curr_fcn_file_full_name.empty ()) |
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2238 warning_with_id |
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2239 ("Octave:precedence-change", |
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2240 "meaning may have changed due to change in precedence for & and | operators"); |
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2241 else |
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2242 warning_with_id |
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2243 ("Octave:precedence-change", |
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2244 "meaning may have changed due to change in precedence for & and | operators near line %d, column %d in file `%s'", |
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2245 op2->line (), op2->column (), |
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2246 curr_fcn_file_full_name.c_str ()); |
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2247 } |
4023 | 2248 } |
578 | 2249 break; |
777 | 2250 |
578 | 2251 default: |
2252 panic_impossible (); | |
2253 break; | |
2254 } | |
2255 | |
2256 int l = tok_val->line (); | |
2257 int c = tok_val->column (); | |
2258 | |
2533 | 2259 tree_binary_expression *e |
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2260 = maybe_compound_binary_expression (op1, op2, l, c, t); |
1623 | 2261 |
2533 | 2262 return fold (e); |
578 | 2263 } |
2264 | |
2375 | 2265 // Build a boolean expression. |
666 | 2266 |
578 | 2267 static tree_expression * |
2375 | 2268 make_boolean_op (int op, tree_expression *op1, token *tok_val, |
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2269 tree_expression *op2) |
578 | 2270 { |
2375 | 2271 tree_boolean_expression::type t; |
2272 | |
578 | 2273 switch (op) |
2274 { | |
2375 | 2275 case EXPR_AND_AND: |
2805 | 2276 t = tree_boolean_expression::bool_and; |
578 | 2277 break; |
777 | 2278 |
2375 | 2279 case EXPR_OR_OR: |
2805 | 2280 t = tree_boolean_expression::bool_or; |
5781 | 2281 if (op2->paren_count () == 0 && op2->is_boolean_expression ()) |
4023 | 2282 { |
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2283 tree_boolean_expression *e |
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2284 = dynamic_cast<tree_boolean_expression *> (op2); |
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2285 |
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2286 if (e->op_type () == tree_boolean_expression::bool_and) |
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2287 warning_with_id |
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2288 ("Octave:precedence-change", |
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2289 "meaning may have changed due to change in precedence for && and || operators"); |
4023 | 2290 } |
578 | 2291 break; |
777 | 2292 |
578 | 2293 default: |
2294 panic_impossible (); | |
2295 break; | |
2296 } | |
2297 | |
2298 int l = tok_val->line (); | |
2299 int c = tok_val->column (); | |
2300 | |
2533 | 2301 tree_boolean_expression *e |
2302 = new tree_boolean_expression (op1, op2, l, c, t); | |
2375 | 2303 |
2533 | 2304 return fold (e); |
578 | 2305 } |
2306 | |
2375 | 2307 // Build a prefix expression. |
666 | 2308 |
578 | 2309 static tree_expression * |
2960 | 2310 make_prefix_op (int op, tree_expression *op1, token *tok_val) |
578 | 2311 { |
3203 | 2312 octave_value::unary_op t = octave_value::unknown_unary_op; |
2375 | 2313 |
578 | 2314 switch (op) |
2315 { | |
2960 | 2316 case EXPR_NOT: |
3525 | 2317 t = octave_value::op_not; |
2960 | 2318 break; |
2319 | |
4965 | 2320 case '+': |
2321 t = octave_value::op_uplus; | |
2322 break; | |
2323 | |
2960 | 2324 case '-': |
3525 | 2325 t = octave_value::op_uminus; |
2960 | 2326 break; |
2327 | |
578 | 2328 case PLUS_PLUS: |
3525 | 2329 t = octave_value::op_incr; |
578 | 2330 break; |
777 | 2331 |
578 | 2332 case MINUS_MINUS: |
3525 | 2333 t = octave_value::op_decr; |
578 | 2334 break; |
777 | 2335 |
578 | 2336 default: |
2337 panic_impossible (); | |
2338 break; | |
2339 } | |
2340 | |
2341 int l = tok_val->line (); | |
2342 int c = tok_val->column (); | |
2343 | |
3292 | 2344 tree_prefix_expression *e |
2345 = new tree_prefix_expression (op1, l, c, t); | |
2346 | |
2347 return fold (e); | |
578 | 2348 } |
2349 | |
2375 | 2350 // Build a postfix expression. |
666 | 2351 |
578 | 2352 static tree_expression * |
2960 | 2353 make_postfix_op (int op, tree_expression *op1, token *tok_val) |
578 | 2354 { |
3203 | 2355 octave_value::unary_op t = octave_value::unknown_unary_op; |
1623 | 2356 |
578 | 2357 switch (op) |
2358 { | |
2960 | 2359 case QUOTE: |
3525 | 2360 t = octave_value::op_hermitian; |
2960 | 2361 break; |
2362 | |
2363 case TRANSPOSE: | |
3525 | 2364 t = octave_value::op_transpose; |
2960 | 2365 break; |
2366 | |
2375 | 2367 case PLUS_PLUS: |
3525 | 2368 t = octave_value::op_incr; |
578 | 2369 break; |
777 | 2370 |
2375 | 2371 case MINUS_MINUS: |
3525 | 2372 t = octave_value::op_decr; |
578 | 2373 break; |
777 | 2374 |
578 | 2375 default: |
2376 panic_impossible (); | |
2377 break; | |
2378 } | |
2379 | |
2380 int l = tok_val->line (); | |
2381 int c = tok_val->column (); | |
2382 | |
3292 | 2383 tree_postfix_expression *e |
2384 = new tree_postfix_expression (op1, l, c, t); | |
2385 | |
2386 return fold (e); | |
1623 | 2387 } |
2388 | |
2389 // Build an unwind-protect command. | |
2390 | |
2391 static tree_command * | |
2392 make_unwind_command (token *unwind_tok, tree_statement_list *body, | |
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2393 tree_statement_list *cleanup, token *end_tok, |
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2394 octave_comment_list *lc, octave_comment_list *mc) |
1623 | 2395 { |
2396 tree_command *retval = 0; | |
2397 | |
2857 | 2398 if (end_token_ok (end_tok, token::unwind_protect_end)) |
1623 | 2399 { |
3665 | 2400 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2401 | |
1623 | 2402 int l = unwind_tok->line (); |
2403 int c = unwind_tok->column (); | |
2404 | |
3665 | 2405 retval = new tree_unwind_protect_command (body, cleanup, |
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2406 lc, mc, tc, l, c); |
1623 | 2407 } |
2408 | |
2409 return retval; | |
2410 } | |
2411 | |
2412 // Build a try-catch command. | |
2413 | |
2414 static tree_command * | |
2415 make_try_command (token *try_tok, tree_statement_list *body, | |
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2416 tree_statement_list *cleanup, token *end_tok, |
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2417 octave_comment_list *lc, octave_comment_list *mc) |
1623 | 2418 { |
2419 tree_command *retval = 0; | |
2420 | |
2857 | 2421 if (end_token_ok (end_tok, token::try_catch_end)) |
1623 | 2422 { |
3665 | 2423 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2424 | |
1623 | 2425 int l = try_tok->line (); |
2426 int c = try_tok->column (); | |
2427 | |
3665 | 2428 retval = new tree_try_catch_command (body, cleanup, |
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2429 lc, mc, tc, l, c); |
1623 | 2430 } |
2431 | |
2432 return retval; | |
2433 } | |
2434 | |
2435 // Build a while command. | |
2436 | |
2437 static tree_command * | |
2438 make_while_command (token *while_tok, tree_expression *expr, | |
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2439 tree_statement_list *body, token *end_tok, |
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2440 octave_comment_list *lc) |
1623 | 2441 { |
2442 tree_command *retval = 0; | |
2443 | |
2444 maybe_warn_assign_as_truth_value (expr); | |
2445 | |
2857 | 2446 if (end_token_ok (end_tok, token::while_end)) |
1623 | 2447 { |
3665 | 2448 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2449 | |
1826 | 2450 lexer_flags.looping--; |
1623 | 2451 |
2452 int l = while_tok->line (); | |
2453 int c = while_tok->column (); | |
2454 | |
3665 | 2455 retval = new tree_while_command (expr, body, lc, tc, l, c); |
1623 | 2456 } |
2457 | |
2458 return retval; | |
2459 } | |
2460 | |
3484 | 2461 // Build a do-until command. |
2462 | |
2463 static tree_command * | |
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2464 make_do_until_command (token *until_tok, tree_statement_list *body, |
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2465 tree_expression *expr, octave_comment_list *lc) |
3484 | 2466 { |
2467 tree_command *retval = 0; | |
2468 | |
2469 maybe_warn_assign_as_truth_value (expr); | |
2470 | |
3665 | 2471 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2472 | |
3484 | 2473 lexer_flags.looping--; |
2474 | |
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2475 int l = until_tok->line (); |
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2476 int c = until_tok->column (); |
3484 | 2477 |
3665 | 2478 retval = new tree_do_until_command (expr, body, lc, tc, l, c); |
3484 | 2479 |
2480 return retval; | |
2481 } | |
2482 | |
1623 | 2483 // Build a for command. |
2484 | |
2485 static tree_command * | |
2970 | 2486 make_for_command (token *for_tok, tree_argument_list *lhs, |
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2487 tree_expression *expr, tree_statement_list *body, |
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2488 token *end_tok, octave_comment_list *lc) |
1623 | 2489 { |
2490 tree_command *retval = 0; | |
2491 | |
2857 | 2492 if (end_token_ok (end_tok, token::for_end)) |
1623 | 2493 { |
3665 | 2494 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2495 | |
1826 | 2496 lexer_flags.looping--; |
1623 | 2497 |
2498 int l = for_tok->line (); | |
2499 int c = for_tok->column (); | |
2500 | |
2970 | 2501 if (lhs->length () == 1) |
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2502 { |
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2503 tree_expression *tmp = lhs->remove_front (); |
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2504 |
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2505 retval = new tree_simple_for_command (tmp, expr, body, |
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2506 lc, tc, l, c); |
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2507 |
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2508 delete lhs; |
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2509 } |
2970 | 2510 else |
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2511 retval = new tree_complex_for_command (lhs, expr, body, |
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2512 lc, tc, l, c); |
1623 | 2513 } |
2514 | |
2515 return retval; | |
2516 } | |
2517 | |
4207 | 2518 // Build a break command. |
2519 | |
2520 static tree_command * | |
2521 make_break_command (token *break_tok) | |
1623 | 2522 { |
4207 | 2523 tree_command *retval = 0; |
1623 | 2524 |
2620 | 2525 int l = break_tok->line (); |
2526 int c = break_tok->column (); | |
2527 | |
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2528 retval = new tree_break_command (l, c); |
1623 | 2529 |
2530 return retval; | |
2531 } | |
2532 | |
4207 | 2533 // Build a continue command. |
2534 | |
2535 static tree_command * | |
2536 make_continue_command (token *continue_tok) | |
1623 | 2537 { |
4207 | 2538 tree_command *retval = 0; |
1623 | 2539 |
2620 | 2540 int l = continue_tok->line (); |
2541 int c = continue_tok->column (); | |
2542 | |
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2543 retval = new tree_continue_command (l, c); |
1623 | 2544 |
2545 return retval; | |
2546 } | |
2547 | |
4207 | 2548 // Build a return command. |
2549 | |
2550 static tree_command * | |
2551 make_return_command (token *return_tok) | |
1623 | 2552 { |
4207 | 2553 tree_command *retval = 0; |
1623 | 2554 |
2620 | 2555 int l = return_tok->line (); |
2556 int c = return_tok->column (); | |
2557 | |
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2558 retval = new tree_return_command (l, c); |
1623 | 2559 |
2560 return retval; | |
2561 } | |
2562 | |
2563 // Start an if command. | |
2564 | |
2565 static tree_if_command_list * | |
2566 start_if_command (tree_expression *expr, tree_statement_list *list) | |
2567 { | |
2568 maybe_warn_assign_as_truth_value (expr); | |
2569 | |
2570 tree_if_clause *t = new tree_if_clause (expr, list); | |
2571 | |
2572 return new tree_if_command_list (t); | |
2573 } | |
2574 | |
2575 // Finish an if command. | |
2576 | |
2577 static tree_if_command * | |
2578 finish_if_command (token *if_tok, tree_if_command_list *list, | |
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2579 token *end_tok, octave_comment_list *lc) |
1623 | 2580 { |
2581 tree_if_command *retval = 0; | |
2582 | |
2857 | 2583 if (end_token_ok (end_tok, token::if_end)) |
1623 | 2584 { |
3665 | 2585 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2586 | |
1623 | 2587 int l = if_tok->line (); |
2588 int c = if_tok->column (); | |
2589 | |
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2590 if (list && ! list->empty ()) |
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2591 { |
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2592 tree_if_clause *elt = list->front (); |
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2593 |
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2594 if (elt) |
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2595 { |
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2596 elt->line (l); |
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2597 elt->column (c); |
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2598 } |
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2599 } |
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|
2600 |
3665 | 2601 retval = new tree_if_command (list, lc, tc, l, c); |
1623 | 2602 } |
2603 | |
2604 return retval; | |
2605 } | |
2606 | |
2607 // Build an elseif clause. | |
2608 | |
2609 static tree_if_clause * | |
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New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2610 make_elseif_clause (token *elseif_tok, tree_expression *expr, |
10315
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untabify src C++ source files
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diff
changeset
|
2611 tree_statement_list *list, octave_comment_list *lc) |
1623 | 2612 { |
2613 maybe_warn_assign_as_truth_value (expr); | |
2614 | |
8658
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New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2615 int l = elseif_tok->line (); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2616 int c = elseif_tok->column (); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2617 |
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2618 return new tree_if_clause (expr, list, lc, l, c); |
1623 | 2619 } |
2620 | |
2764 | 2621 // Finish a switch command. |
2622 | |
2623 static tree_switch_command * | |
2624 finish_switch_command (token *switch_tok, tree_expression *expr, | |
10315
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2625 tree_switch_case_list *list, token *end_tok, |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2626 octave_comment_list *lc) |
2764 | 2627 { |
2628 tree_switch_command *retval = 0; | |
2629 | |
2857 | 2630 if (end_token_ok (end_tok, token::switch_end)) |
2764 | 2631 { |
3665 | 2632 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2633 | |
2764 | 2634 int l = switch_tok->line (); |
2635 int c = switch_tok->column (); | |
2636 | |
8842
be7b30a24938
line/column info for switch and if statements
John W. Eaton <jwe@octave.org>
parents:
8828
diff
changeset
|
2637 if (list && ! list->empty ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2638 { |
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
2639 tree_switch_case *elt = list->front (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2640 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2641 if (elt) |
57a59eae83cc
untabify src C++ source files
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changeset
|
2642 { |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2643 elt->line (l); |
57a59eae83cc
untabify src C++ source files
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diff
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|
2644 elt->column (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2645 } |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2646 } |
8842
be7b30a24938
line/column info for switch and if statements
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parents:
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diff
changeset
|
2647 |
3665 | 2648 retval = new tree_switch_command (expr, list, lc, tc, l, c); |
2764 | 2649 } |
2650 | |
2651 return retval; | |
2652 } | |
2653 | |
2654 // Build a switch case. | |
2655 | |
2656 static tree_switch_case * | |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2657 make_switch_case (token *case_tok, tree_expression *expr, |
10315
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untabify src C++ source files
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diff
changeset
|
2658 tree_statement_list *list, octave_comment_list *lc) |
2764 | 2659 { |
2660 maybe_warn_variable_switch_label (expr); | |
2661 | |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2662 int l = case_tok->line (); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2663 int c = case_tok->column (); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2664 |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2665 return new tree_switch_case (expr, list, lc, l, c); |
2764 | 2666 } |
2667 | |
1623 | 2668 // Build an assignment to a variable. |
2669 | |
2670 static tree_expression * | |
2970 | 2671 make_assign_op (int op, tree_argument_list *lhs, token *eq_tok, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2672 tree_expression *rhs) |
1623 | 2673 { |
2970 | 2674 tree_expression *retval = 0; |
2675 | |
2883 | 2676 octave_value::assign_op t = octave_value::unknown_assign_op; |
2677 | |
2678 switch (op) | |
2679 { | |
2680 case '=': | |
3525 | 2681 t = octave_value::op_asn_eq; |
2883 | 2682 break; |
2683 | |
2684 case ADD_EQ: | |
3525 | 2685 t = octave_value::op_add_eq; |
2883 | 2686 break; |
2687 | |
2688 case SUB_EQ: | |
3525 | 2689 t = octave_value::op_sub_eq; |
2883 | 2690 break; |
2691 | |
2692 case MUL_EQ: | |
3525 | 2693 t = octave_value::op_mul_eq; |
2883 | 2694 break; |
2695 | |
2696 case DIV_EQ: | |
3525 | 2697 t = octave_value::op_div_eq; |
2883 | 2698 break; |
2699 | |
3204 | 2700 case LEFTDIV_EQ: |
3525 | 2701 t = octave_value::op_ldiv_eq; |
3204 | 2702 break; |
2703 | |
4018 | 2704 case POW_EQ: |
2705 t = octave_value::op_pow_eq; | |
2706 break; | |
2707 | |
2899 | 2708 case LSHIFT_EQ: |
3525 | 2709 t = octave_value::op_lshift_eq; |
2899 | 2710 break; |
2711 | |
2712 case RSHIFT_EQ: | |
3525 | 2713 t = octave_value::op_rshift_eq; |
2899 | 2714 break; |
2715 | |
2883 | 2716 case EMUL_EQ: |
3525 | 2717 t = octave_value::op_el_mul_eq; |
2883 | 2718 break; |
2719 | |
2720 case EDIV_EQ: | |
3525 | 2721 t = octave_value::op_el_div_eq; |
2883 | 2722 break; |
2723 | |
3204 | 2724 case ELEFTDIV_EQ: |
3525 | 2725 t = octave_value::op_el_ldiv_eq; |
3204 | 2726 break; |
2727 | |
4018 | 2728 case EPOW_EQ: |
2729 t = octave_value::op_el_pow_eq; | |
2730 break; | |
2731 | |
2883 | 2732 case AND_EQ: |
3525 | 2733 t = octave_value::op_el_and_eq; |
2883 | 2734 break; |
2735 | |
2736 case OR_EQ: | |
3525 | 2737 t = octave_value::op_el_or_eq; |
2883 | 2738 break; |
2739 | |
2740 default: | |
2741 panic_impossible (); | |
2742 break; | |
2743 } | |
2744 | |
1623 | 2745 int l = eq_tok->line (); |
2746 int c = eq_tok->column (); | |
2747 | |
5841 | 2748 if (lhs->is_simple_assign_lhs ()) |
666 | 2749 { |
2970 | 2750 tree_expression *tmp = lhs->remove_front (); |
2751 | |
2752 retval = new tree_simple_assignment (tmp, rhs, false, l, c, t); | |
2753 | |
2754 delete lhs; | |
666 | 2755 } |
10230
0a5a769b8fc0
disallow computed multiple assignment
Jaroslav Hajek <highegg@gmail.com>
parents:
10207
diff
changeset
|
2756 else if (t == octave_value::op_asn_eq) |
0a5a769b8fc0
disallow computed multiple assignment
Jaroslav Hajek <highegg@gmail.com>
parents:
10207
diff
changeset
|
2757 return new tree_multi_assignment (lhs, rhs, false, l, c); |
666 | 2758 else |
10230
0a5a769b8fc0
disallow computed multiple assignment
Jaroslav Hajek <highegg@gmail.com>
parents:
10207
diff
changeset
|
2759 yyerror ("computed multiple assignment not allowed"); |
666 | 2760 |
2761 return retval; | |
2762 } | |
751 | 2763 |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
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diff
changeset
|
2764 // Define a script. |
7715
5b4d278ec828
parse scripts completely before executing
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diff
changeset
|
2765 |
5b4d278ec828
parse scripts completely before executing
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diff
changeset
|
2766 static void |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2767 make_script (tree_statement_list *cmds, tree_statement *end_script) |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2768 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2769 std::string doc_string; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2770 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2771 if (! help_buf.empty ()) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7699
diff
changeset
|
2772 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2773 doc_string = help_buf.top (); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2774 help_buf.pop (); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2775 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2776 |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2777 if (! cmds) |
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2778 cmds = new tree_statement_list (); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2779 |
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2780 cmds->append (end_script); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8471
diff
changeset
|
2781 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2782 octave_user_script *script |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2783 = new octave_user_script (curr_fcn_file_full_name, curr_fcn_file_name, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2784 cmds, doc_string); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2785 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2786 octave_time now; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2787 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2788 script->stash_fcn_file_time (now); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2789 |
9474
25ed2d6aacf6
Parse nested functions more accurately.
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parents:
9471
diff
changeset
|
2790 primary_fcn_ptr = script; |
8881
8ed42c679af5
after defining a script or function, clear local variables created for parsing
John W. Eaton <jwe@octave.org>
parents:
8842
diff
changeset
|
2791 |
9009
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2792 // Unmark any symbols that may have been tagged as local variables |
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2793 // while parsing (for example, by force_local_variable in lex.l). |
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2794 |
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2795 symbol_table::unmark_forced_variables (); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2796 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2797 |
1623 | 2798 // Begin defining a function. |
2799 | |
2891 | 2800 static octave_user_function * |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2801 start_function (tree_parameter_list *param_list, tree_statement_list *body, |
10315
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untabify src C++ source files
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parents:
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diff
changeset
|
2802 tree_statement *end_fcn_stmt) |
1623 | 2803 { |
2891 | 2804 // We'll fill in the return list later. |
2805 | |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2806 if (! body) |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2807 body = new tree_statement_list (); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2808 |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2809 body->append (end_fcn_stmt); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2810 |
2891 | 2811 octave_user_function *fcn |
7336 | 2812 = new octave_user_function (symbol_table::current_scope (), |
10315
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untabify src C++ source files
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diff
changeset
|
2813 param_list, 0, body); |
1623 | 2814 |
3665 | 2815 if (fcn) |
2816 { | |
2817 octave_comment_list *tc = octave_comment_buffer::get_comment (); | |
2818 | |
2819 fcn->stash_trailing_comment (tc); | |
2820 } | |
2821 | |
1623 | 2822 return fcn; |
2823 } | |
2824 | |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2825 static tree_statement * |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2826 make_end (const std::string& type, int l, int c) |
73c4516fae10
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diff
changeset
|
2827 { |
73c4516fae10
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diff
changeset
|
2828 return make_statement (new tree_no_op_command (type, l, c)); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2829 } |
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diff
changeset
|
2830 |
1623 | 2831 // Do most of the work for defining a function. |
2832 | |
2891 | 2833 static octave_user_function * |
4872 | 2834 frob_function (const std::string& fname, octave_user_function *fcn) |
1623 | 2835 { |
4872 | 2836 std::string id_name = fname; |
1623 | 2837 |
2838 // If input is coming from a file, issue a warning if the name of | |
2839 // the file does not match the name of the function stated in the | |
2840 // file. Matlab doesn't provide a diagnostic (it ignores the stated | |
2841 // name). | |
9474
25ed2d6aacf6
Parse nested functions more accurately.
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parents:
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diff
changeset
|
2842 if (! autoloading && reading_fcn_file |
25ed2d6aacf6
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diff
changeset
|
2843 && (current_function_depth == 1 |
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untabify src C++ source files
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changeset
|
2844 && ! (parsing_subfunctions || lexer_flags.parsing_class_method))) |
9474
25ed2d6aacf6
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diff
changeset
|
2845 { |
25ed2d6aacf6
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9471
diff
changeset
|
2846 // FIXME -- should curr_fcn_file_name already be |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2847 // preprocessed when we get here? It seems to only be a |
25ed2d6aacf6
Parse nested functions more accurately.
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diff
changeset
|
2848 // problem with relative file names. |
25ed2d6aacf6
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diff
changeset
|
2849 |
25ed2d6aacf6
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9471
diff
changeset
|
2850 std::string nm = curr_fcn_file_name; |
25ed2d6aacf6
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diff
changeset
|
2851 |
25ed2d6aacf6
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9471
diff
changeset
|
2852 size_t pos = nm.find_last_of (file_ops::dir_sep_chars ()); |
25ed2d6aacf6
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diff
changeset
|
2853 |
25ed2d6aacf6
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changeset
|
2854 if (pos != std::string::npos) |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2855 nm = curr_fcn_file_name.substr (pos+1); |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2856 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2857 if (nm != id_name) |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2858 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2859 warning_with_id |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2860 ("Octave:function-name-clash", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2861 "function name `%s' does not agree with function file name `%s'", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2862 id_name.c_str (), curr_fcn_file_full_name.c_str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2863 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2864 id_name = nm; |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2865 } |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2866 } |
1623 | 2867 |
9476 | 2868 if (reading_fcn_file || reading_classdef_file || autoloading) |
1623 | 2869 { |
3712 | 2870 octave_time now; |
3162 | 2871 |
4343 | 2872 fcn->stash_fcn_file_name (curr_fcn_file_full_name); |
3162 | 2873 fcn->stash_fcn_file_time (now); |
1623 | 2874 fcn->mark_as_system_fcn_file (); |
3162 | 2875 |
6323 | 2876 if (fcn_file_from_relative_lookup) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2877 fcn->mark_relative (); |
6323 | 2878 |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2879 if (current_function_depth > 1 || parsing_subfunctions) |
7968
0d607e8dbbfa
eliminate curr_parent_function; fix subfunction lookup
John W. Eaton <jwe@octave.org>
parents:
7903
diff
changeset
|
2880 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2881 fcn->stash_parent_fcn_name (curr_fcn_file_name); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2882 fcn->stash_parent_fcn_scope (primary_fcn_scope); |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2883 } |
6323 | 2884 |
7336 | 2885 if (lexer_flags.parsing_class_method) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2886 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2887 if (current_class_name == id_name) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2888 fcn->mark_as_class_constructor (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2889 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2890 fcn->mark_as_class_method (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2891 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2892 fcn->stash_dispatch_class (current_class_name); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2893 } |
7336 | 2894 |
5781 | 2895 std::string nm = fcn->fcn_file_name (); |
2896 | |
2897 file_stat fs (nm); | |
2898 | |
2899 if (fs && fs.is_newer (now)) | |
2900 warning_with_id ("Octave:future-time-stamp", | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2901 "time stamp for `%s' is in the future", nm.c_str ()); |
1623 | 2902 } |
2903 else if (! (input_from_tmp_history_file || input_from_startup_file) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2904 && reading_script_file |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2905 && curr_fcn_file_name == id_name) |
1623 | 2906 { |
2907 warning ("function `%s' defined within script file `%s'", | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2908 id_name.c_str (), curr_fcn_file_full_name.c_str ()); |
1623 | 2909 } |
2910 | |
4872 | 2911 fcn->stash_function_name (id_name); |
2912 | |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2913 if (! help_buf.empty () && current_function_depth == 1 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2914 && ! parsing_subfunctions) |
7336 | 2915 { |
2916 fcn->document (help_buf.top ()); | |
2917 | |
2918 help_buf.pop (); | |
2919 } | |
2920 | |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2921 if (reading_fcn_file && current_function_depth == 1 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2922 && ! parsing_subfunctions) |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2923 primary_fcn_ptr = fcn; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2924 |
1623 | 2925 return fcn; |
2926 } | |
2927 | |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2928 static tree_function_def * |
3665 | 2929 finish_function (tree_parameter_list *ret_list, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2930 octave_user_function *fcn, octave_comment_list *lc) |
1623 | 2931 { |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2932 tree_function_def *retval = 0; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2933 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2934 if (ret_list) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2935 ret_list->mark_as_formal_parameters (); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2936 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2937 if (fcn) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2938 { |
7761
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2939 std::string nm = fcn->name (); |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2940 std::string file = fcn->fcn_file_name (); |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2941 |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2942 std::string tmp = nm; |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2943 if (! file.empty ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2944 tmp += ": " + file; |
7761
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2945 |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2946 symbol_table::cache_name (fcn->scope (), tmp); |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2947 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2948 if (lc) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2949 fcn->stash_leading_comment (lc); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2950 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2951 fcn->define_ret_list (ret_list); |
7755
ea9cb4d68dbf
avoid installing subfunctions twice
John W. Eaton <jwe@octave.org>
parents:
7750
diff
changeset
|
2952 |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2953 if (current_function_depth > 1 || parsing_subfunctions) |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2954 { |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2955 // FIXME -- is this flag used to determine if the function is a |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2956 // _subfunction_ somewhere? |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2957 fcn->mark_as_nested_function (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2958 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2959 symbol_table::install_subfunction (nm, octave_value (fcn), |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2960 primary_fcn_scope); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2961 } |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2962 |
9761
5f8971be8e12
parse.y (finish_function): retrun function object unless parsing function file
John W. Eaton <jwe@octave.org>
parents:
9506
diff
changeset
|
2963 if (! reading_fcn_file) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2964 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2965 // We are either reading a script file or defining a function |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2966 // at the command line, so this definition creates a |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2967 // tree_function object that is placed in the parse tree. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2968 // Otherwise, it is just inserted in the symbol table, |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2969 // either as a subfunction (see above), or as the primary |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2970 // function for the file, via primary_fcn_ptr (see also |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2971 // load_fcn_from_file,, parse_fcn_file, and |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2972 // symbol_table::fcn_info::fcn_info_rep::find_user_function). |
9761
5f8971be8e12
parse.y (finish_function): retrun function object unless parsing function file
John W. Eaton <jwe@octave.org>
parents:
9506
diff
changeset
|
2973 |
5f8971be8e12
parse.y (finish_function): retrun function object unless parsing function file
John W. Eaton <jwe@octave.org>
parents:
9506
diff
changeset
|
2974 retval = new tree_function_def (fcn); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2975 } |
8282
47a3d2f829e4
clear local symbol table after parsing function
John W. Eaton <jwe@octave.org>
parents:
8150
diff
changeset
|
2976 |
9009
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2977 // Unmark any symbols that may have been tagged as local |
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2978 // variables while parsing (for example, by force_local_variable |
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2979 // in lex.l). |
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2980 |
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2981 symbol_table::unmark_forced_variables (fcn->scope ()); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2982 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2983 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2984 return retval; |
1623 | 2985 } |
2986 | |
2883 | 2987 static void |
2988 recover_from_parsing_function (void) | |
2989 { | |
4238 | 2990 if (symtab_context.empty ()) |
3903 | 2991 panic_impossible (); |
2992 | |
7336 | 2993 symbol_table::set_scope (symtab_context.top ()); |
4238 | 2994 symtab_context.pop (); |
2883 | 2995 |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2996 if (reading_fcn_file && current_function_depth == 1 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2997 && ! parsing_subfunctions) |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2998 parsing_subfunctions = true; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2999 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3000 current_function_depth--; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3001 |
11367
b2191ebea12f
don't process input_event_hook when we are parsing a function
John W. Eaton <jwe@octave.org>
parents:
11317
diff
changeset
|
3002 lexer_flags.defining_func--; |
2883 | 3003 lexer_flags.parsed_function_name = false; |
3004 lexer_flags.looking_at_return_list = false; | |
3005 lexer_flags.looking_at_parameter_list = false; | |
3006 } | |
3007 | |
2846 | 3008 // Make an index expression. |
3009 | |
751 | 3010 static tree_index_expression * |
3929 | 3011 make_index_expression (tree_expression *expr, tree_argument_list *args, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3012 char type) |
751 | 3013 { |
3014 tree_index_expression *retval = 0; | |
10206
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
parents:
10188
diff
changeset
|
3015 |
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
parents:
10188
diff
changeset
|
3016 if (args && args->has_magic_tilde ()) |
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
parents:
10188
diff
changeset
|
3017 { |
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
parents:
10188
diff
changeset
|
3018 yyerror ("invalid use of empty argument (~) in index expression"); |
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
parents:
10188
diff
changeset
|
3019 return retval; |
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
parents:
10188
diff
changeset
|
3020 } |
751 | 3021 |
2970 | 3022 int l = expr->line (); |
3023 int c = expr->column (); | |
3024 | |
3025 expr->mark_postfix_indexed (); | |
3026 | |
3933 | 3027 if (expr->is_index_expression ()) |
3028 { | |
3029 tree_index_expression *tmp = static_cast<tree_index_expression *> (expr); | |
3030 | |
3031 tmp->append (args, type); | |
3032 | |
3033 retval = tmp; | |
3034 } | |
3035 else | |
3036 retval = new tree_index_expression (expr, args, l, c, type); | |
2970 | 3037 |
3038 return retval; | |
3039 } | |
3040 | |
3041 // Make an indirect reference expression. | |
3042 | |
3930 | 3043 static tree_index_expression * |
3523 | 3044 make_indirect_ref (tree_expression *expr, const std::string& elt) |
2970 | 3045 { |
3930 | 3046 tree_index_expression *retval = 0; |
2970 | 3047 |
3048 int l = expr->line (); | |
3049 int c = expr->column (); | |
3050 | |
3933 | 3051 if (expr->is_index_expression ()) |
3052 { | |
3053 tree_index_expression *tmp = static_cast<tree_index_expression *> (expr); | |
3054 | |
3055 tmp->append (elt); | |
3056 | |
3057 retval = tmp; | |
3058 } | |
3059 else | |
3060 retval = new tree_index_expression (expr, elt, l, c); | |
2970 | 3061 |
3062 lexer_flags.looking_at_indirect_ref = false; | |
751 | 3063 |
3064 return retval; | |
3065 } | |
1511 | 3066 |
4131 | 3067 // Make an indirect reference expression with dynamic field name. |
3068 | |
3069 static tree_index_expression * | |
3070 make_indirect_ref (tree_expression *expr, tree_expression *elt) | |
3071 { | |
3072 tree_index_expression *retval = 0; | |
3073 | |
3074 int l = expr->line (); | |
3075 int c = expr->column (); | |
3076 | |
3077 if (expr->is_index_expression ()) | |
3078 { | |
3079 tree_index_expression *tmp = static_cast<tree_index_expression *> (expr); | |
3080 | |
3081 tmp->append (elt); | |
3082 | |
3083 retval = tmp; | |
3084 } | |
3085 else | |
3086 retval = new tree_index_expression (expr, elt, l, c); | |
3087 | |
3088 lexer_flags.looking_at_indirect_ref = false; | |
3089 | |
3090 return retval; | |
3091 } | |
3092 | |
2846 | 3093 // Make a declaration command. |
3094 | |
3095 static tree_decl_command * | |
3096 make_decl_command (int tok, token *tok_val, tree_decl_init_list *lst) | |
3097 { | |
3098 tree_decl_command *retval = 0; | |
3099 | |
3100 int l = tok_val->line (); | |
3101 int c = tok_val->column (); | |
3102 | |
3103 switch (tok) | |
3104 { | |
3105 case GLOBAL: | |
3106 retval = new tree_global_command (lst, l, c); | |
3107 break; | |
3108 | |
3109 case STATIC: | |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3110 if (current_function_depth > 0) |
10315
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
3111 retval = new tree_static_command (lst, l, c); |
2846 | 3112 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3113 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3114 if (reading_script_file) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3115 warning ("ignoring persistent declaration near line %d of file `%s'", |
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
3116 l, curr_fcn_file_full_name.c_str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3117 else |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
3118 warning ("ignoring persistent declaration near line %d", l); |
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
3119 } |
2846 | 3120 break; |
3121 | |
3122 default: | |
3123 panic_impossible (); | |
3124 break; | |
3125 } | |
3126 | |
3127 return retval; | |
3128 } | |
3129 | |
10207
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3130 static tree_argument_list * |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3131 validate_matrix_row (tree_argument_list *row) |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3132 { |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3133 if (row && row->has_magic_tilde ()) |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3134 yyerror ("invalid use of tilde (~) in matrix expression"); |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3135 return row; |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3136 } |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3137 |
1623 | 3138 // Finish building a matrix list. |
3139 | |
3140 static tree_expression * | |
1829 | 3141 finish_matrix (tree_matrix *m) |
1623 | 3142 { |
3110 | 3143 tree_expression *retval = m; |
3144 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3145 unwind_protect frame; |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3146 |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3147 frame.protect_var (error_state); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3148 frame.protect_var (warning_state); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3149 |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3150 frame.protect_var (discard_error_messages); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3151 frame.protect_var (discard_warning_messages); |
4452 | 3152 |
3815 | 3153 discard_error_messages = true; |
4452 | 3154 discard_warning_messages = true; |
1623 | 3155 |
2533 | 3156 if (m->all_elements_are_constant ()) |
1829 | 3157 { |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8471
diff
changeset
|
3158 octave_value tmp = m->rvalue1 (); |
1623 | 3159 |
3489 | 3160 if (! (error_state || warning_state)) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3161 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3162 tree_constant *tc_retval |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3163 = new tree_constant (tmp, m->line (), m->column ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3164 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3165 std::ostringstream buf; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3166 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3167 tree_print_code tpc (buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3168 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3169 m->accept (tpc); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3170 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3171 tc_retval->stash_original_text (buf.str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3172 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3173 delete m; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3174 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3175 retval = tc_retval; |
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
3176 } |
1623 | 3177 } |
3110 | 3178 |
1623 | 3179 return retval; |
3180 } | |
3181 | |
3351 | 3182 // Finish building a cell list. |
3183 | |
3184 static tree_expression * | |
3185 finish_cell (tree_cell *c) | |
3186 { | |
5875 | 3187 return finish_matrix (c); |
3351 | 3188 } |
3189 | |
1511 | 3190 static void |
3191 maybe_warn_missing_semi (tree_statement_list *t) | |
3192 { | |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3193 if (current_function_depth > 0) |
1511 | 3194 { |
4219 | 3195 tree_statement *tmp = t->back(); |
1607 | 3196 |
1511 | 3197 if (tmp->is_expression ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3198 warning_with_id |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3199 ("Octave:missing-semicolon", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3200 "missing semicolon near line %d, column %d in file `%s'", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3201 tmp->line (), tmp->column (), curr_fcn_file_full_name.c_str ()); |
1511 | 3202 } |
3203 } | |
1994 | 3204 |
8471
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3205 static tree_statement_list * |
2525 | 3206 set_stmt_print_flag (tree_statement_list *list, char sep, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3207 bool warn_missing_semi) |
2525 | 3208 { |
8471
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3209 tree_statement *tmp = list->back (); |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3210 |
2525 | 3211 switch (sep) |
3212 { | |
3213 case ';': | |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8471
diff
changeset
|
3214 tmp->set_print_flag (false); |
2525 | 3215 break; |
3216 | |
3217 case 0: | |
3218 case ',': | |
3219 case '\n': | |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8471
diff
changeset
|
3220 tmp->set_print_flag (true); |
2525 | 3221 if (warn_missing_semi) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3222 maybe_warn_missing_semi (list); |
2525 | 3223 break; |
3224 | |
3225 default: | |
3226 warning ("unrecognized separator type!"); | |
3227 break; | |
3228 } | |
8471
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3229 |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3230 // Even if a statement is null, we add it to the list then remove it |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3231 // here so that the print flag is applied to the correct statement. |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3232 |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3233 if (tmp->is_null_statement ()) |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3234 { |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3235 list->pop_back (); |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3236 delete tmp; |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3237 } |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3238 |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3239 return list; |
2525 | 3240 } |
3241 | |
8448
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3242 static tree_statement_list * |
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3243 make_statement_list (tree_statement *stmt) |
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3244 { |
8471
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3245 return new tree_statement_list (stmt); |
8448
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3246 } |
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3247 |
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3248 static tree_statement_list * |
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3249 append_statement_list (tree_statement_list *list, char sep, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3250 tree_statement *stmt, bool warn_missing_semi) |
8448
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3251 { |
8471
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3252 set_stmt_print_flag (list, sep, warn_missing_semi); |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3253 |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3254 list->append (stmt); |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3255 |
02de6775f1fe
parse.y: always append statements to list, but remove null statements after seeing separator
John W. Eaton <jwe@octave.org>
parents:
8448
diff
changeset
|
3256 return list; |
8448
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3257 } |
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
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8447
diff
changeset
|
3258 |
3021 | 3259 static void |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
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9794
diff
changeset
|
3260 safe_fclose (FILE *f) |
3021 | 3261 { |
5775 | 3262 // FIXME -- comments at the end of an input file are |
3765 | 3263 // discarded (otherwise, they would be appended to the next |
3264 // statement, possibly from the command line or another file, which | |
3265 // can be quite confusing). | |
3266 | |
5308 | 3267 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
3268 | |
3269 delete tc; | |
3765 | 3270 |
3021 | 3271 if (f) |
3272 fclose (static_cast<FILE *> (f)); | |
3273 } | |
3274 | |
3275 static bool | |
5175 | 3276 looks_like_copyright (const std::string& s) |
3021 | 3277 { |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3278 bool retval = false; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3279 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3280 if (! s.empty ()) |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3281 { |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3282 size_t offset = s.find_first_not_of (" \t"); |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3283 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3284 retval = (s.substr (offset, 9) == "Copyright"); |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3285 } |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3286 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3287 return retval; |
3021 | 3288 } |
3289 | |
4540 | 3290 static int |
3291 text_getc (FILE *f) | |
3292 { | |
3293 int c = getc (f); | |
3294 | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
3295 // Convert CRLF into just LF and single CR into LF. |
4540 | 3296 |
3297 if (c == '\r') | |
3298 { | |
3299 c = getc (f); | |
3300 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3301 if (c != '\n') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3302 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3303 ungetc (c, f); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3304 c = '\n'; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3305 } |
4540 | 3306 } |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3307 |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3308 if (c == '\n') |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3309 input_line_number++; |
4540 | 3310 |
3311 return c; | |
3312 } | |
3313 | |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3314 class |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3315 stdio_stream_reader : public stream_reader |
3021 | 3316 { |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3317 public: |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3318 stdio_stream_reader (FILE *f_arg) : stream_reader (), f (f_arg) { } |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3319 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3320 int getc (void) { return ::text_getc (f); } |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3321 int ungetc (int c) |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3322 { |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3323 if (c == '\n') |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3324 input_line_number--; |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3325 |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3326 return ::ungetc (c, f); |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3327 } |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3328 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3329 private: |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3330 FILE *f; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3331 }; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3332 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3333 static bool |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3334 skip_white_space (stream_reader& reader) |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3335 { |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3336 int c = 0; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3337 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3338 while ((c = reader.getc ()) != EOF) |
3021 | 3339 { |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3340 switch (c) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3341 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3342 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3343 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3344 current_input_column++; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3345 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3346 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3347 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3348 current_input_column = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3349 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3350 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3351 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3352 current_input_column--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3353 reader.ungetc (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3354 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3355 } |
3021 | 3356 } |
3357 | |
3358 done: | |
3359 | |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3360 return (c == EOF); |
3021 | 3361 } |
3362 | |
9476 | 3363 static bool |
3364 looking_at_classdef_keyword (FILE *ffile) | |
3365 { | |
3366 bool status = false; | |
3367 | |
3368 long pos = ftell (ffile); | |
3369 | |
3370 char buf [10]; | |
3371 fgets (buf, 10, ffile); | |
3372 size_t len = strlen (buf); | |
3373 if (len > 8 && strncmp (buf, "classdef", 8) == 0 | |
3374 && ! (isalnum (buf[8]) || buf[8] == '_')) | |
3375 status = true; | |
3376 | |
3377 fseek (ffile, pos, SEEK_SET); | |
3378 | |
3379 return status; | |
3380 } | |
3381 | |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3382 static std::string |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3383 gobble_leading_white_space (FILE *ffile, bool& eof) |
3021 | 3384 { |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3385 std::string help_txt; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3386 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3387 eof = false; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3388 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3389 // TRUE means we have already cached the help text. |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3390 bool have_help_text = false; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3391 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3392 std::string txt; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3393 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3394 stdio_stream_reader stdio_reader (ffile); |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3395 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3396 while (true) |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3397 { |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3398 eof = skip_white_space (stdio_reader); |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3399 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3400 if (eof) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3401 break; |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3402 |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3403 txt = grab_comment_block (stdio_reader, true, eof); |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3404 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3405 if (txt.empty ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3406 break; |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3407 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3408 if (! (have_help_text || looks_like_copyright (txt))) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3409 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3410 help_txt = txt; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3411 have_help_text = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3412 } |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3413 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3414 octave_comment_buffer::append (txt); |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3415 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3416 if (eof) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3417 break; |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3418 } |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3419 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3420 return help_txt; |
3021 | 3421 } |
3422 | |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3423 static bool |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3424 looking_at_function_keyword (FILE *ffile) |
5931 | 3425 { |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3426 bool status = false; |
3021 | 3427 |
3428 long pos = ftell (ffile); | |
3429 | |
3430 char buf [10]; | |
3431 fgets (buf, 10, ffile); | |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3432 size_t len = strlen (buf); |
3021 | 3433 if (len > 8 && strncmp (buf, "function", 8) == 0 |
3434 && ! (isalnum (buf[8]) || buf[8] == '_')) | |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3435 status = true; |
3021 | 3436 |
3437 fseek (ffile, pos, SEEK_SET); | |
3438 | |
3439 return status; | |
3440 } | |
3441 | |
7336 | 3442 static octave_function * |
3443 parse_fcn_file (const std::string& ff, const std::string& dispatch_type, | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3444 bool force_script = false, bool require_file = true, |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3445 const std::string& warn_for = std::string ()) |
3021 | 3446 { |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3447 unwind_protect frame; |
3021 | 3448 |
7336 | 3449 octave_function *fcn_ptr = 0; |
3021 | 3450 |
3451 // Open function file and parse. | |
3452 | |
3453 FILE *in_stream = command_editor::get_input_stream (); | |
3454 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3455 frame.add_fcn (command_editor::set_input_stream, in_stream); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3456 |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3457 frame.protect_var (ff_instream); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3458 |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3459 frame.protect_var (input_line_number); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3460 frame.protect_var (current_input_column); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3461 frame.protect_var (reading_fcn_file); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3462 frame.protect_var (line_editing); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3463 frame.protect_var (current_class_name); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3464 frame.protect_var (current_function_depth); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3465 frame.protect_var (max_function_depth); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3466 frame.protect_var (parsing_subfunctions); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3467 frame.protect_var (endfunction_found); |
3021 | 3468 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3469 input_line_number = 1; |
3021 | 3470 current_input_column = 1; |
3471 reading_fcn_file = true; | |
3472 line_editing = false; | |
7336 | 3473 current_class_name = dispatch_type; |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3474 current_function_depth = 0; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3475 max_function_depth = 0; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3476 parsing_subfunctions = false; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3477 endfunction_found = false; |
3021 | 3478 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3479 // The next four lines must be in this order. |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3480 frame.add_fcn (command_history::ignore_entries, ! Vsaving_history); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3481 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3482 // FIXME -- we shouldn't need both the |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3483 // command_history object and the |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3484 // Vsaving_history variable... |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3485 command_history::ignore_entries (); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3486 |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3487 frame.protect_var (Vsaving_history); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3488 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3489 Vsaving_history = false; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3490 |
3021 | 3491 FILE *ffile = get_input_from_file (ff, 0); |
3492 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3493 frame.add_fcn (safe_fclose, ffile); |
3021 | 3494 |
3495 if (ffile) | |
3496 { | |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3497 bool eof; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3498 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3499 std::string help_txt = gobble_leading_white_space (ffile, eof); |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3500 |
10872
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3501 if (! help_txt.empty ()) |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3502 help_buf.push (help_txt); |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3503 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3504 if (! eof) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3505 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3506 std::string file_type; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3507 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3508 frame.protect_var (get_input_from_eval_string); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3509 frame.protect_var (parser_end_of_input); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3510 frame.protect_var (reading_fcn_file); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3511 frame.protect_var (reading_script_file); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3512 frame.protect_var (reading_classdef_file); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3513 frame.protect_var (Vecho_executing_commands); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3514 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3515 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3516 get_input_from_eval_string = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3517 parser_end_of_input = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3518 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3519 if (! force_script && looking_at_function_keyword (ffile)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3520 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3521 file_type = "function"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3522 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3523 Vecho_executing_commands = ECHO_OFF; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3524 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3525 reading_classdef_file = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3526 reading_fcn_file = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3527 reading_script_file = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3528 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3529 else if (! force_script && looking_at_classdef_keyword (ffile)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3530 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3531 file_type = "classdef"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3532 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3533 Vecho_executing_commands = ECHO_OFF; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3534 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3535 reading_classdef_file = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3536 reading_fcn_file = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3537 reading_script_file = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3538 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3539 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3540 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3541 file_type = "script"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3542 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3543 Vecho_executing_commands = ECHO_OFF; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3544 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3545 reading_classdef_file = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3546 reading_fcn_file = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3547 reading_script_file = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3548 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3549 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3550 YY_BUFFER_STATE old_buf = current_buffer (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3551 YY_BUFFER_STATE new_buf = create_buffer (ffile); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3552 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3553 frame.add_fcn (switch_to_buffer, old_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3554 frame.add_fcn (delete_buffer, new_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3555 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3556 switch_to_buffer (new_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3557 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3558 frame.protect_var (primary_fcn_ptr); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3559 primary_fcn_ptr = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3560 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3561 reset_parser (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3562 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3563 // Do this with an unwind-protect cleanup function so that |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3564 // the forced variables will be unmarked in the event of an |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3565 // interrupt. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3566 symbol_table::scope_id scope = symbol_table::top_scope (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3567 frame.add_fcn (symbol_table::unmark_forced_variables, scope); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3568 |
10879
5af852c93af3
oct-parse.yy: Restore parsing of help text.
Rik <octave@nomad.inbox5.com>
parents:
10872
diff
changeset
|
3569 if (! help_txt.empty ()) |
5af852c93af3
oct-parse.yy: Restore parsing of help text.
Rik <octave@nomad.inbox5.com>
parents:
10872
diff
changeset
|
3570 help_buf.push (help_txt); |
5af852c93af3
oct-parse.yy: Restore parsing of help text.
Rik <octave@nomad.inbox5.com>
parents:
10872
diff
changeset
|
3571 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3572 if (reading_script_file) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3573 prep_lexer_for_script_file (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3574 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3575 prep_lexer_for_function_file (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3576 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3577 lexer_flags.parsing_class_method = ! dispatch_type.empty (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3578 |
11258
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
3579 frame.protect_var (global_command); |
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
3580 |
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
3581 global_command = 0; |
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
3582 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3583 int status = yyparse (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3584 |
11258
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
3585 delete global_command; |
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
3586 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3587 fcn_ptr = primary_fcn_ptr; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3588 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3589 if (reading_fcn_file && endfunction_found && max_function_depth > 1) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3590 warning_with_id ("Octave:nested-functions-coerced", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3591 "nested functions are coerced into subfunctions " |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3592 "in file %s", ff.c_str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3593 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3594 if (status != 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3595 error ("parse error while reading %s file %s", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3596 file_type.c_str(), ff.c_str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3597 } |
10872
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3598 else |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3599 { |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3600 tree_statement *end_of_script |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3601 = make_end ("endscript", input_line_number, current_input_column); |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3602 |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3603 make_script (0, end_of_script); |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3604 |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3605 fcn_ptr = primary_fcn_ptr; |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3606 } |
3021 | 3607 } |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3608 else if (require_file) |
3880 | 3609 error ("no such file, `%s'", ff.c_str ()); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3610 else if (! warn_for.empty ()) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3611 error ("%s: unable to open file `%s'", warn_for.c_str (), ff.c_str ()); |
3021 | 3612 |
7336 | 3613 return fcn_ptr; |
3021 | 3614 } |
3615 | |
5484 | 3616 std::string |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3617 get_help_from_file (const std::string& nm, bool& symbol_found, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3618 std::string& file) |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3619 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3620 std::string retval; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3621 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3622 file = fcn_file_in_path (nm); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3623 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3624 if (! file.empty ()) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3625 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3626 symbol_found = true; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3627 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3628 FILE *fptr = fopen (file.c_str (), "r"); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3629 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3630 if (fptr) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3631 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3632 unwind_protect frame; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3633 frame.add_fcn (safe_fclose, fptr); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3634 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3635 bool eof; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3636 retval = gobble_leading_white_space (fptr, eof); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3637 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3638 if (retval.empty ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3639 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3640 octave_function *fcn = parse_fcn_file (file, ""); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3641 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3642 if (fcn) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3643 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3644 retval = fcn->doc_string (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3645 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3646 delete fcn; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3647 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3648 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3649 } |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3650 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3651 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3652 return retval; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3653 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3654 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3655 std::string |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3656 get_help_from_file (const std::string& nm, bool& symbol_found) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3657 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3658 std::string file; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3659 return get_help_from_file (nm, symbol_found, file); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3660 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3661 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3662 std::string |
5484 | 3663 lookup_autoload (const std::string& nm) |
3664 { | |
5626 | 3665 std::string retval; |
3666 | |
3667 typedef std::map<std::string, std::string>::const_iterator am_iter; | |
3668 | |
3669 am_iter p = autoload_map.find (nm); | |
3670 | |
3671 if (p != autoload_map.end ()) | |
6323 | 3672 retval = load_path::find_file (p->second); |
5626 | 3673 |
3674 return retval; | |
5484 | 3675 } |
3676 | |
5592 | 3677 string_vector |
3678 autoloaded_functions (void) | |
3679 { | |
3680 string_vector names (autoload_map.size()); | |
3681 | |
3682 octave_idx_type i = 0; | |
5626 | 3683 typedef std::map<std::string, std::string>::const_iterator am_iter; |
3684 for (am_iter p = autoload_map.begin (); p != autoload_map.end (); p++) | |
5592 | 3685 names[i++] = p->first; |
3686 | |
3687 return names; | |
3688 } | |
3689 | |
3690 string_vector | |
3691 reverse_lookup_autoload (const std::string& nm) | |
3692 { | |
3693 string_vector names; | |
3694 | |
5626 | 3695 typedef std::map<std::string, std::string>::const_iterator am_iter; |
3696 for (am_iter p = autoload_map.begin (); p != autoload_map.end (); p++) | |
5592 | 3697 if (nm == p->second) |
3698 names.append (p->first); | |
3699 | |
3700 return names; | |
3701 } | |
3702 | |
7336 | 3703 octave_function * |
3704 load_fcn_from_file (const std::string& file_name, const std::string& dir_name, | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3705 const std::string& dispatch_type, |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3706 const std::string& fcn_name, bool autoload) |
3021 | 3707 { |
7336 | 3708 octave_function *retval = 0; |
3709 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3710 unwind_protect frame; |
5484 | 3711 |
7336 | 3712 std::string nm = file_name; |
6238 | 3713 |
3714 size_t nm_len = nm.length (); | |
5472 | 3715 |
3716 std::string file; | |
3717 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3718 frame.protect_var (fcn_file_from_relative_lookup); |
6323 | 3719 |
3720 fcn_file_from_relative_lookup = false; | |
3721 | |
7336 | 3722 file = nm; |
3723 | |
3724 if ((nm_len > 4 && nm.substr (nm_len-4) == ".oct") | |
3725 || (nm_len > 4 && nm.substr (nm_len-4) == ".mex") | |
3726 || (nm_len > 2 && nm.substr (nm_len-2) == ".m")) | |
5472 | 3727 { |
6238 | 3728 nm = octave_env::base_pathname (file); |
3729 nm = nm.substr (0, nm.find_last_of ('.')); | |
11136
a51ac4198e1c
oct-parse.yy (load_fcn_from_file): also strip directory when computing function name from filename
John W. Eaton <jwe@octave.org>
parents:
11091
diff
changeset
|
3730 |
a51ac4198e1c
oct-parse.yy (load_fcn_from_file): also strip directory when computing function name from filename
John W. Eaton <jwe@octave.org>
parents:
11091
diff
changeset
|
3731 size_t pos = nm.find_last_of (file_ops::dir_sep_str ()); |
a51ac4198e1c
oct-parse.yy (load_fcn_from_file): also strip directory when computing function name from filename
John W. Eaton <jwe@octave.org>
parents:
11091
diff
changeset
|
3732 if (pos != std::string::npos) |
11138
40206fe759db
oct-parse.yy: fix typo in previous change
John W. Eaton <jwe@octave.org>
parents:
11136
diff
changeset
|
3733 nm = nm.substr (pos+1); |
5472 | 3734 } |
7336 | 3735 |
3736 if (autoload) | |
5472 | 3737 { |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3738 frame.protect_var (autoloading); |
7336 | 3739 autoloading = true; |
3740 } | |
3741 | |
7749
14e05160b99f
reference counting for functions loaded from shared libraries
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
3742 fcn_file_from_relative_lookup = ! octave_env::absolute_pathname (file); |
14e05160b99f
reference counting for functions loaded from shared libraries
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
3743 |
10250 | 3744 file = octave_env::make_absolute (file); |
4243 | 3745 |
3746 int len = file.length (); | |
3747 | |
4244 | 3748 if (len > 4 && file.substr (len-4, len-1) == ".oct") |
3021 | 3749 { |
7336 | 3750 if (autoload && ! fcn_name.empty ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3751 nm = fcn_name; |
7336 | 3752 |
3753 retval = octave_dynamic_loader::load_oct (nm, file, fcn_file_from_relative_lookup); | |
5864 | 3754 } |
3755 else if (len > 4 && file.substr (len-4, len-1) == ".mex") | |
10570
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3756 { |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3757 // Temporarily load m-file version of mex-file, if it exists, |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3758 // to get the help-string to use. |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3759 frame.protect_var (curr_fcn_file_name); |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3760 frame.protect_var (curr_fcn_file_full_name); |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3761 |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3762 curr_fcn_file_name = nm; |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3763 curr_fcn_file_full_name = file.substr (0, len - 2); |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3764 |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3765 octave_function *tmpfcn = parse_fcn_file (file.substr (0, len - 2), |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3766 dispatch_type, autoloading, |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3767 false); |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3768 |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3769 retval = octave_dynamic_loader::load_mex (nm, file, fcn_file_from_relative_lookup); |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3770 |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3771 if (tmpfcn) |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3772 retval->document (tmpfcn->doc_string ()); |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3773 delete tmpfcn; |
a61d7248627c
When loading a mex-file temporarily load the m-file version to get the help string (bug #29427)
David Bateman <dbateman@free.fr>
parents:
10521
diff
changeset
|
3774 } |
4244 | 3775 else if (len > 2) |
3021 | 3776 { |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3777 // These are needed by yyparse. |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3778 |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3779 frame.protect_var (curr_fcn_file_name); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3780 frame.protect_var (curr_fcn_file_full_name); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7699
diff
changeset
|
3781 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3782 curr_fcn_file_name = nm; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3783 curr_fcn_file_full_name = file; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3784 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3785 retval = parse_fcn_file (file, dispatch_type, autoloading); |
3021 | 3786 } |
3787 | |
7336 | 3788 if (retval) |
8819
96d87674b818
also stash directory name for subfunctions
John W. Eaton <jwe@octave.org>
parents:
8812
diff
changeset
|
3789 { |
96d87674b818
also stash directory name for subfunctions
John W. Eaton <jwe@octave.org>
parents:
8812
diff
changeset
|
3790 retval->stash_dir_name (dir_name); |
96d87674b818
also stash directory name for subfunctions
John W. Eaton <jwe@octave.org>
parents:
8812
diff
changeset
|
3791 |
96d87674b818
also stash directory name for subfunctions
John W. Eaton <jwe@octave.org>
parents:
8812
diff
changeset
|
3792 if (retval->is_user_function ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3793 { |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
3794 symbol_table::scope_id id = retval->scope (); |
57a59eae83cc
untabify src C++ source files
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|
3795 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3796 symbol_table::stash_dir_name_for_subfunctions (id, dir_name); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3797 } |
8819
96d87674b818
also stash directory name for subfunctions
John W. Eaton <jwe@octave.org>
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8812
diff
changeset
|
3798 } |
7336 | 3799 |
3800 return retval; | |
5312 | 3801 } |
3802 | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3803 DEFUN (autoload, args, , |
5484 | 3804 "-*- texinfo -*-\n\ |
3805 @deftypefn {Built-in Function} {} autoload (@var{function}, @var{file})\n\ | |
3806 Define @var{function} to autoload from @var{file}.\n\ | |
5626 | 3807 \n\ |
6926 | 3808 The second argument, @var{file}, should be an absolute file name or\n\ |
3809 a file name in the same directory as the function or script from which\n\ | |
9038
fca0dc2fb042
Cleanup documentation files stmt.texi and func.texi
Rik <rdrider0-list@yahoo.com>
parents:
8974
diff
changeset
|
3810 the autoload command was run. @var{file} should not depend on the\n\ |
6926 | 3811 Octave load path.\n\ |
6380 | 3812 \n\ |
3813 Normally, calls to @code{autoload} appear in PKG_ADD script files that\n\ | |
3814 are evaluated when a directory is added to the Octave's load path. To\n\ | |
6926 | 3815 avoid having to hardcode directory names in @var{file}, if @var{file}\n\ |
3816 is in the same directory as the PKG_ADD script then\n\ | |
6380 | 3817 \n\ |
3818 @example\n\ | |
6926 | 3819 autoload (\"foo\", \"bar.oct\");\n\ |
6380 | 3820 @end example\n\ |
3821 \n\ | |
9038
fca0dc2fb042
Cleanup documentation files stmt.texi and func.texi
Rik <rdrider0-list@yahoo.com>
parents:
8974
diff
changeset
|
3822 will load the function @code{foo} from the file @code{bar.oct}. The above\n\ |
6926 | 3823 when @code{bar.oct} is not in the same directory or uses like\n\ |
6380 | 3824 \n\ |
3825 @example\n\ | |
6637 | 3826 autoload (\"foo\", file_in_loadpath (\"bar.oct\"))\n\ |
6380 | 3827 @end example\n\ |
3828 \n\ | |
3829 @noindent\n\ | |
6926 | 3830 are strongly discouraged, as their behavior might be unpredictable.\n\ |
6380 | 3831 \n\ |
6637 | 3832 With no arguments, return a structure containing the current autoload map.\n\ |
6380 | 3833 @seealso{PKG_ADD}\n\ |
5484 | 3834 @end deftypefn") |
3835 { | |
5626 | 3836 octave_value retval; |
5484 | 3837 |
3838 int nargin = args.length (); | |
3839 | |
5626 | 3840 if (nargin == 0) |
3841 { | |
10350
12884915a8e4
merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents:
10315
diff
changeset
|
3842 Cell func_names (dim_vector (autoload_map.size (), 1)); |
12884915a8e4
merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
3843 Cell file_names (dim_vector (autoload_map.size (), 1)); |
5626 | 3844 |
3845 octave_idx_type i = 0; | |
3846 typedef std::map<std::string, std::string>::const_iterator am_iter; | |
3847 for (am_iter p = autoload_map.begin (); p != autoload_map.end (); p++) | |
10315
57a59eae83cc
untabify src C++ source files
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|
3848 { |
57a59eae83cc
untabify src C++ source files
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|
3849 func_names(i) = p->first; |
57a59eae83cc
untabify src C++ source files
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|
3850 file_names(i) = p->second; |
57a59eae83cc
untabify src C++ source files
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|
3851 |
57a59eae83cc
untabify src C++ source files
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|
3852 i++; |
57a59eae83cc
untabify src C++ source files
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changeset
|
3853 } |
5626 | 3854 |
11060
54697b37d8bf
replace Octave_map->octave_scalar_map in oct-parse.yy and ov-fcn-handle.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
3855 octave_map m; |
5626 | 3856 |
3857 m.assign ("function", func_names); | |
3858 m.assign ("file", file_names); | |
3859 | |
3860 retval = m; | |
3861 } | |
3862 else if (nargin == 2) | |
5484 | 3863 { |
3864 string_vector argv = args.make_argv ("autoload"); | |
3865 | |
3866 if (! error_state) | |
6380 | 3867 { |
10315
57a59eae83cc
untabify src C++ source files
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|
3868 std::string nm = argv[2]; |
57a59eae83cc
untabify src C++ source files
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|
3869 |
57a59eae83cc
untabify src C++ source files
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changeset
|
3870 if (! octave_env::absolute_pathname (nm)) |
57a59eae83cc
untabify src C++ source files
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changeset
|
3871 { |
57a59eae83cc
untabify src C++ source files
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|
3872 octave_user_code *fcn = octave_call_stack::caller_user_code (); |
57a59eae83cc
untabify src C++ source files
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|
3873 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3874 bool found = false; |
57a59eae83cc
untabify src C++ source files
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changeset
|
3875 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
3876 if (fcn) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3877 { |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
3878 std::string fname = fcn->fcn_file_name (); |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
3879 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3880 if (! fname.empty ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3881 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3882 fname = octave_env::make_absolute (fname); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3883 fname = fname.substr (0, fname.find_last_of (file_ops::dir_sep_str ()) + 1); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3884 |
57a59eae83cc
untabify src C++ source files
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changeset
|
3885 file_stat fs (fname + nm); |
57a59eae83cc
untabify src C++ source files
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changeset
|
3886 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3887 if (fs.exists ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3888 { |
57a59eae83cc
untabify src C++ source files
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changeset
|
3889 nm = fname + nm; |
57a59eae83cc
untabify src C++ source files
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changeset
|
3890 found = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3891 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3892 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3893 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3894 if (! found) |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
3895 warning_with_id ("Octave:autoload-relative-file-name", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3896 "autoload: `%s' is not an absolute file name", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3897 nm.c_str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10250
diff
changeset
|
3898 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3899 autoload_map[argv[1]] = nm; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3900 } |
5484 | 3901 } |
3902 else | |
5823 | 3903 print_usage (); |
5484 | 3904 |
3905 return retval; | |
3906 } | |
3907 | |
4486 | 3908 void |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3909 source_file (const std::string& file_name, const std::string& context, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3910 bool verbose, bool require_file, const std::string& warn_for) |
4486 | 3911 { |
10578
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3912 // Map from absolute name of script file to recursion level. We |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3913 // use a map instead of simply placing a limit on recursion in the |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3914 // source_file function so that two mutually recursive scripts |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3915 // written as |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3916 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3917 // foo1.m: |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3918 // ------ |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3919 // foo2 |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3920 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3921 // foo2.m: |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3922 // ------ |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3923 // foo1 |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3924 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3925 // and called with |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3926 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3927 // foo1 |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3928 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3929 // (for example) will behave the same if they are written as |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3930 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3931 // foo1.m: |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3932 // ------ |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3933 // source ("foo2.m") |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3934 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3935 // foo2.m: |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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changeset
|
3936 // ------ |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3937 // source ("foo1.m") |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3938 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3939 // and called with |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3940 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3941 // source ("foo1.m") |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3942 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3943 // (for example). |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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changeset
|
3944 |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3945 static std::map<std::string, int> source_call_depth; |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3946 |
4486 | 3947 std::string file_full_name = file_ops::tilde_expand (file_name); |
3948 | |
10578
cb0883127251
limit on recursion via calls to source function
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diff
changeset
|
3949 file_full_name = octave_env::make_absolute (file_full_name); |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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changeset
|
3950 |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3951 unwind_protect frame; |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3952 |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
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9794
diff
changeset
|
3953 frame.protect_var (curr_fcn_file_name); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
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9794
diff
changeset
|
3954 frame.protect_var (curr_fcn_file_full_name); |
4486 | 3955 |
3956 curr_fcn_file_name = file_name; | |
3957 curr_fcn_file_full_name = file_full_name; | |
3958 | |
10578
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3959 if (source_call_depth.find (file_full_name) == source_call_depth.end ()) |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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changeset
|
3960 source_call_depth[file_full_name] = -1; |
cb0883127251
limit on recursion via calls to source function
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diff
changeset
|
3961 |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3962 frame.protect_var (source_call_depth[file_full_name]); |
cb0883127251
limit on recursion via calls to source function
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diff
changeset
|
3963 |
cb0883127251
limit on recursion via calls to source function
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changeset
|
3964 source_call_depth[file_full_name]++; |
cb0883127251
limit on recursion via calls to source function
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changeset
|
3965 |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3966 if (source_call_depth[file_full_name] >= Vmax_recursion_depth) |
cb0883127251
limit on recursion via calls to source function
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changeset
|
3967 { |
cb0883127251
limit on recursion via calls to source function
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diff
changeset
|
3968 error ("max_recursion_depth exceeded"); |
cb0883127251
limit on recursion via calls to source function
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diff
changeset
|
3969 return; |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3970 } |
cb0883127251
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
3971 |
5975 | 3972 if (! context.empty ()) |
3973 { | |
3974 if (context == "caller") | |
10315
57a59eae83cc
untabify src C++ source files
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changeset
|
3975 octave_call_stack::goto_caller_frame (); |
5975 | 3976 else if (context == "base") |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3977 octave_call_stack::goto_base_frame (); |
5975 | 3978 else |
10315
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3979 error ("source: context must be \"caller\" or \"base\""); |
7336 | 3980 |
3981 if (! error_state) | |
10315
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|
3982 frame.add_fcn (octave_call_stack::pop); |
5975 | 3983 } |
3984 | |
3985 if (! error_state) | |
3986 { | |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7699
diff
changeset
|
3987 octave_function *fcn = parse_fcn_file (file_full_name, "", true, |
10315
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untabify src C++ source files
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changeset
|
3988 require_file, warn_for); |
7715
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parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3989 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3990 if (! error_state) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3991 { |
57a59eae83cc
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changeset
|
3992 if (fcn && fcn->is_user_script ()) |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
3993 { |
57a59eae83cc
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|
3994 octave_value_list args; |
57a59eae83cc
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changeset
|
3995 |
57a59eae83cc
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diff
changeset
|
3996 if (verbose) |
57a59eae83cc
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3997 { |
57a59eae83cc
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diff
changeset
|
3998 std::cout << "executing commands from " << file_full_name << " ... "; |
57a59eae83cc
untabify src C++ source files
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changeset
|
3999 reading_startup_message_printed = true; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
4000 std::cout.flush (); |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
4001 } |
57a59eae83cc
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diff
changeset
|
4002 |
57a59eae83cc
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4003 fcn->do_multi_index_op (0, args); |
57a59eae83cc
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changeset
|
4004 |
57a59eae83cc
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diff
changeset
|
4005 if (verbose) |
57a59eae83cc
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diff
changeset
|
4006 std::cout << "done." << std::endl; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
4007 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
4008 delete fcn; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4009 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4010 } |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
4011 else |
10315
57a59eae83cc
untabify src C++ source files
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changeset
|
4012 error ("source: error sourcing file `%s'", |
57a59eae83cc
untabify src C++ source files
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changeset
|
4013 file_full_name.c_str ()); |
5975 | 4014 } |
4486 | 4015 } |
4016 | |
5739 | 4017 DEFUN (mfilename, args, , |
4018 "-*- texinfo -*-\n\ | |
4019 @deftypefn {Built-in Function} {} mfilename ()\n\ | |
4020 @deftypefnx {Built-in Function} {} mfilename (@code{\"fullpath\"})\n\ | |
4021 @deftypefnx {Built-in Function} {} mfilename (@code{\"fullpathext\"})\n\ | |
4022 Return the name of the currently executing file. At the top-level,\n\ | |
4023 return the empty string. Given the argument @code{\"fullpath\"},\n\ | |
4024 include the directory part of the file name, but not the extension.\n\ | |
4025 Given the argument @code{\"fullpathext\"}, include the directory part\n\ | |
4026 of the file name and the extension.\n\ | |
5774 | 4027 @end deftypefn") |
5739 | 4028 { |
4029 octave_value retval; | |
4030 | |
4031 int nargin = args.length (); | |
4032 | |
4033 if (nargin > 1) | |
4034 { | |
5823 | 4035 print_usage (); |
5739 | 4036 return retval; |
4037 } | |
4038 | |
4039 std::string arg; | |
4040 | |
4041 if (nargin == 1) | |
4042 { | |
4043 arg = args(0).string_value (); | |
4044 | |
4045 if (error_state) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4046 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4047 error ("mfilename: expecting argument to be a character string"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4048 return retval; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4049 } |
5739 | 4050 } |
4051 | |
4052 std::string fname; | |
4053 | |
7719
87eda1f8faaa
octave_user_code: new base class for octave_user_script and octave_user_function
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
4054 octave_user_code *fcn = octave_call_stack::caller_user_code (); |
5743 | 4055 |
4056 if (fcn) | |
4057 { | |
4058 fname = fcn->fcn_file_name (); | |
4059 | |
4060 if (fname.empty ()) | |
4061 fname = fcn->name (); | |
4062 } | |
5739 | 4063 |
4064 if (arg == "fullpathext") | |
4065 retval = fname; | |
4066 else | |
4067 { | |
8007
a2ab20ba78f7
make file_ops a proper singleton class
John W. Eaton <jwe@octave.org>
parents:
8001
diff
changeset
|
4068 size_t dpos = fname.rfind (file_ops::dir_sep_char ()); |
5747 | 4069 size_t epos = fname.rfind ('.'); |
4070 | |
4071 if (epos <= dpos) | |
8021 | 4072 epos = std::string::npos; |
4073 | |
4074 fname = (epos != std::string::npos) ? fname.substr (0, epos) : fname; | |
5739 | 4075 |
4076 if (arg == "fullpath") | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
4077 retval = fname; |
5739 | 4078 else |
8021 | 4079 retval = (dpos != std::string::npos) ? fname.substr (dpos+1) : fname; |
5739 | 4080 } |
4081 | |
4082 return retval; | |
4083 } | |
4084 | |
4085 | |
3021 | 4086 DEFUN (source, args, , |
3371 | 4087 "-*- texinfo -*-\n\ |
4088 @deftypefn {Built-in Function} {} source (@var{file})\n\ | |
4089 Parse and execute the contents of @var{file}. This is equivalent to\n\ | |
4090 executing commands from a script file, but without requiring the file to\n\ | |
4091 be named @file{@var{file}.m}.\n\ | |
4092 @end deftypefn") | |
3021 | 4093 { |
4094 octave_value_list retval; | |
4095 | |
4096 int nargin = args.length (); | |
4097 | |
5975 | 4098 if (nargin == 1 || nargin == 2) |
3021 | 4099 { |
3523 | 4100 std::string file_name = args(0).string_value (); |
3021 | 4101 |
4102 if (! error_state) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
4103 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4104 std::string context; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4105 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4106 if (nargin == 2) |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
4107 context = args(1).string_value (); |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
4108 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
4109 if (! error_state) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4110 source_file (file_name, context); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4111 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4112 error ("source: expecting context to be character string"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4113 } |
3021 | 4114 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4115 error ("source: expecting file name as argument"); |
3021 | 4116 } |
4117 else | |
5823 | 4118 print_usage (); |
3021 | 4119 |
4120 return retval; | |
4121 } | |
4122 | |
3726 | 4123 // Evaluate an Octave function (built-in or interpreted) and return |
3844 | 4124 // the list of result values. NAME is the name of the function to |
4125 // call. ARGS are the arguments to the function. NARGOUT is the | |
4126 // number of output arguments expected. | |
3726 | 4127 |
3021 | 4128 octave_value_list |
3523 | 4129 feval (const std::string& name, const octave_value_list& args, int nargout) |
3156 | 4130 { |
4131 octave_value_list retval; | |
4132 | |
7336 | 4133 octave_value fcn = symbol_table::find_function (name, args); |
4134 | |
4135 if (fcn.is_defined ()) | |
4136 retval = fcn.do_multi_index_op (nargout, args); | |
4137 else | |
10443
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10426
diff
changeset
|
4138 { |
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10426
diff
changeset
|
4139 maybe_missing_function_hook (name); |
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10426
diff
changeset
|
4140 if (! error_state) |
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10426
diff
changeset
|
4141 error ("feval: function `%s' not found", name.c_str ()); |
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10426
diff
changeset
|
4142 } |
3156 | 4143 |
4144 return retval; | |
4145 } | |
4146 | |
4342 | 4147 octave_value_list |
4148 feval (octave_function *fcn, const octave_value_list& args, int nargout) | |
4149 { | |
4150 octave_value_list retval; | |
4151 | |
4152 if (fcn) | |
4153 retval = fcn->do_multi_index_op (nargout, args); | |
4154 | |
4155 return retval; | |
4156 } | |
4157 | |
4158 static octave_value_list | |
4159 get_feval_args (const octave_value_list& args) | |
4160 { | |
10659
8baff2aceabc
fix slicing value lists with name tags (bug #29960)
Jaroslav Hajek <highegg@gmail.com>
parents:
10578
diff
changeset
|
4161 return args.slice (1, args.length () - 1, true); |
4342 | 4162 } |
4163 | |
4164 | |
3726 | 4165 // Evaluate an Octave function (built-in or interpreted) and return |
4166 // the list of result values. The first element of ARGS should be a | |
4167 // string containing the name of the function to call, then the rest | |
4168 // are the actual arguments to the function. NARGOUT is the number of | |
4169 // output arguments expected. | |
4170 | |
3156 | 4171 octave_value_list |
3021 | 4172 feval (const octave_value_list& args, int nargout) |
4173 { | |
4174 octave_value_list retval; | |
4175 | |
4342 | 4176 int nargin = args.length (); |
4177 | |
4178 if (nargin > 0) | |
3021 | 4179 { |
4342 | 4180 octave_value f_arg = args(0); |
4181 | |
4182 if (f_arg.is_string ()) | |
4183 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4184 std::string name = f_arg.string_value (); |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
4185 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10250
diff
changeset
|
4186 if (! error_state) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4187 { |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
4188 octave_value_list tmp_args = get_feval_args (args); |
57a59eae83cc
untabify src C++ source files
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10250
diff
changeset
|
4189 |
57a59eae83cc
untabify src C++ source files
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10250
diff
changeset
|
4190 retval = feval (name, tmp_args, nargout); |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
4191 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4192 } |
10492
a6b64a7a3769
make feval work with overloaded handles
Jaroslav Hajek <highegg@gmail.com>
parents:
10463
diff
changeset
|
4193 else if (f_arg.is_function_handle () || f_arg.is_inline_function ()) |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
4194 { |
10492
a6b64a7a3769
make feval work with overloaded handles
Jaroslav Hajek <highegg@gmail.com>
parents:
10463
diff
changeset
|
4195 const octave_value_list tmp_args = get_feval_args (args); |
a6b64a7a3769
make feval work with overloaded handles
Jaroslav Hajek <highegg@gmail.com>
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10463
diff
changeset
|
4196 |
a6b64a7a3769
make feval work with overloaded handles
Jaroslav Hajek <highegg@gmail.com>
parents:
10463
diff
changeset
|
4197 retval = f_arg.do_multi_index_op (nargout, tmp_args); |
10315
57a59eae83cc
untabify src C++ source files
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changeset
|
4198 } |
10492
a6b64a7a3769
make feval work with overloaded handles
Jaroslav Hajek <highegg@gmail.com>
parents:
10463
diff
changeset
|
4199 else |
a6b64a7a3769
make feval work with overloaded handles
Jaroslav Hajek <highegg@gmail.com>
parents:
10463
diff
changeset
|
4200 error ("feval: first argument must be a string, inline function or a function handle"); |
3021 | 4201 } |
4202 | |
4203 return retval; | |
4204 } | |
4205 | |
4206 DEFUN (feval, args, nargout, | |
3371 | 4207 "-*- texinfo -*-\n\ |
4208 @deftypefn {Built-in Function} {} feval (@var{name}, @dots{})\n\ | |
4209 Evaluate the function named @var{name}. Any arguments after the first\n\ | |
4210 are passed on to the named function. For example,\n\ | |
4211 \n\ | |
4212 @example\n\ | |
4213 feval (\"acos\", -1)\n\ | |
4214 @result{} 3.1416\n\ | |
4215 @end example\n\ | |
3021 | 4216 \n\ |
3371 | 4217 @noindent\n\ |
4218 calls the function @code{acos} with the argument @samp{-1}.\n\ | |
4219 \n\ | |
4220 The function @code{feval} is necessary in order to be able to write\n\ | |
4221 functions that call user-supplied functions, because Octave does not\n\ | |
4222 have a way to declare a pointer to a function (like C) or to declare a\n\ | |
4223 special kind of variable that can be used to hold the name of a function\n\ | |
4224 (like @code{EXTERNAL} in Fortran). Instead, you must refer to functions\n\ | |
4225 by name, and use @code{feval} to call them.\n\ | |
4226 @end deftypefn") | |
3021 | 4227 { |
4228 octave_value_list retval; | |
4229 | |
4230 int nargin = args.length (); | |
4231 | |
4232 if (nargin > 0) | |
4233 retval = feval (args, nargout); | |
4234 else | |
5823 | 4235 print_usage (); |
3021 | 4236 |
4237 return retval; | |
4238 } | |
4239 | |
11225
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4240 DEFUN (builtin, args, nargout, |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4241 "-*- texinfo -*-\n\ |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4242 @deftypefn {Loadable Function} {[@dots{}]} builtin (@var{f}, @dots{})\n\ |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4243 Call the base function @var{f} even if @var{f} is overloaded to\n\ |
11388
027fbc389898
Remove seealso reference to deprecated function dispatch.
Rik <octave@nomad.inbox5.com>
parents:
11367
diff
changeset
|
4244 another function for the given type signature.\n\ |
11225
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4245 @end deftypefn") |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4246 { |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4247 octave_value_list retval; |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4248 |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4249 int nargin = args.length (); |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4250 |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4251 if (nargin > 0) |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4252 { |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4253 const std::string name (args(0).string_value ()); |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4254 |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4255 if (! error_state) |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4256 { |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4257 octave_value fcn = symbol_table::builtin_find (name); |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4258 |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4259 if (fcn.is_defined ()) |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4260 retval = feval (fcn.function_value (), args.splice (0, 1), |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4261 nargout); |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4262 else |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4263 error ("builtin: lookup for symbol `%s' failed", name.c_str ()); |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4264 } |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4265 else |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4266 error ("builtin: expecting function name as first argument"); |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4267 } |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4268 else |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4269 print_usage (); |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4270 |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4271 return retval; |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4272 } |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4273 |
3099 | 4274 octave_value_list |
3523 | 4275 eval_string (const std::string& s, bool silent, int& parse_status, int nargout) |
3021 | 4276 { |
3877 | 4277 octave_value_list retval; |
4278 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4279 unwind_protect frame; |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4280 |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4281 frame.protect_var (input_line_number); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4282 frame.protect_var (current_input_column); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4283 frame.protect_var (get_input_from_eval_string); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4284 frame.protect_var (input_from_eval_string_pending); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4285 frame.protect_var (parser_end_of_input); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4286 frame.protect_var (line_editing); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4287 frame.protect_var (current_eval_string); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4288 frame.protect_var (current_function_depth); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4289 frame.protect_var (max_function_depth); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4290 frame.protect_var (parsing_subfunctions); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4291 frame.protect_var (endfunction_found); |
10130
0c3609dd34cf
oct-parse.yy (eval_string): save and set reading_{script,fcn,classdef}_file vars
John W. Eaton <jwe@octave.org>
parents:
10067
diff
changeset
|
4292 frame.protect_var (reading_fcn_file); |
0c3609dd34cf
oct-parse.yy (eval_string): save and set reading_{script,fcn,classdef}_file vars
John W. Eaton <jwe@octave.org>
parents:
10067
diff
changeset
|
4293 frame.protect_var (reading_script_file); |
0c3609dd34cf
oct-parse.yy (eval_string): save and set reading_{script,fcn,classdef}_file vars
John W. Eaton <jwe@octave.org>
parents:
10067
diff
changeset
|
4294 frame.protect_var (reading_classdef_file); |
3021 | 4295 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
4296 input_line_number = 1; |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
4297 current_input_column = 1; |
3021 | 4298 get_input_from_eval_string = true; |
3877 | 4299 input_from_eval_string_pending = true; |
3883 | 4300 parser_end_of_input = false; |
5189 | 4301 line_editing = false; |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
4302 current_function_depth = 0; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
4303 max_function_depth = 0; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
4304 parsing_subfunctions = false; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
4305 endfunction_found = false; |
10130
0c3609dd34cf
oct-parse.yy (eval_string): save and set reading_{script,fcn,classdef}_file vars
John W. Eaton <jwe@octave.org>
parents:
10067
diff
changeset
|
4306 reading_fcn_file = false; |
0c3609dd34cf
oct-parse.yy (eval_string): save and set reading_{script,fcn,classdef}_file vars
John W. Eaton <jwe@octave.org>
parents:
10067
diff
changeset
|
4307 reading_script_file = false; |
0c3609dd34cf
oct-parse.yy (eval_string): save and set reading_{script,fcn,classdef}_file vars
John W. Eaton <jwe@octave.org>
parents:
10067
diff
changeset
|
4308 reading_classdef_file = false; |
5189 | 4309 |
3021 | 4310 current_eval_string = s; |
4311 | |
4312 YY_BUFFER_STATE old_buf = current_buffer (); | |
4313 YY_BUFFER_STATE new_buf = create_buffer (0); | |
4314 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4315 frame.add_fcn (switch_to_buffer, old_buf); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4316 frame.add_fcn (delete_buffer, new_buf); |
3021 | 4317 |
4318 switch_to_buffer (new_buf); | |
4319 | |
3877 | 4320 do |
4321 { | |
4318 | 4322 reset_parser (); |
4323 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4324 frame.protect_var (global_command); |
7903
8018e10d2b87
save and restore global_command as needed
John W. Eaton <jwe@octave.org>
parents:
7901
diff
changeset
|
4325 |
11258
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
4326 global_command = 0; |
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
4327 |
9260
9c2349a51218
properly unmark forced variables
John W. Eaton <jwe@octave.org>
parents:
9144
diff
changeset
|
4328 // Do this with an unwind-protect cleanup function so that the |
9c2349a51218
properly unmark forced variables
John W. Eaton <jwe@octave.org>
parents:
9144
diff
changeset
|
4329 // forced variables will be unmarked in the event of an |
9c2349a51218
properly unmark forced variables
John W. Eaton <jwe@octave.org>
parents:
9144
diff
changeset
|
4330 // interrupt. |
9c2349a51218
properly unmark forced variables
John W. Eaton <jwe@octave.org>
parents:
9144
diff
changeset
|
4331 symbol_table::scope_id scope = symbol_table::top_scope (); |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4332 frame.add_fcn (symbol_table::unmark_forced_variables, scope); |
9260
9c2349a51218
properly unmark forced variables
John W. Eaton <jwe@octave.org>
parents:
9144
diff
changeset
|
4333 |
3877 | 4334 parse_status = yyparse (); |
4335 | |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8471
diff
changeset
|
4336 tree_statement_list *command_list = global_command; |
3877 | 4337 |
9260
9c2349a51218
properly unmark forced variables
John W. Eaton <jwe@octave.org>
parents:
9144
diff
changeset
|
4338 // Unmark forced variables. |
7903
8018e10d2b87
save and restore global_command as needed
John W. Eaton <jwe@octave.org>
parents:
7901
diff
changeset
|
4339 // Restore previous value of global_command. |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4340 frame.run_top (2); |
7903
8018e10d2b87
save and restore global_command as needed
John W. Eaton <jwe@octave.org>
parents:
7901
diff
changeset
|
4341 |
3883 | 4342 if (parse_status == 0) |
3877 | 4343 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4344 if (command_list) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4345 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4346 tree_statement *stmt = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4347 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4348 if (command_list->length () == 1 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4349 && (stmt = command_list->front ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4350 && stmt->is_expression ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4351 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4352 tree_expression *expr = stmt->expression (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4353 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4354 if (silent) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4355 expr->set_print_flag (false); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4356 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4357 bool do_bind_ans = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4358 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4359 if (expr->is_identifier ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4360 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4361 tree_identifier *id |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4362 = dynamic_cast<tree_identifier *> (expr); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4363 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4364 do_bind_ans = (! id->is_variable ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4365 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4366 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4367 do_bind_ans = (! expr->is_assignment_expression ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4368 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4369 retval = expr->rvalue (nargout); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4370 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4371 if (do_bind_ans && ! (error_state || retval.empty ())) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4372 bind_ans (retval(0), expr->print_result ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4373 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4374 if (nargout == 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4375 retval = octave_value_list (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4376 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4377 else if (nargout == 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4378 command_list->accept (*current_evaluator); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4379 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4380 error ("eval: invalid use of statement list"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4381 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4382 delete command_list; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4383 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4384 command_list = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4385 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4386 if (error_state |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4387 || tree_return_command::returning |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4388 || tree_break_command::breaking |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4389 || tree_continue_command::continuing) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4390 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4391 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4392 else if (parser_end_of_input) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4393 break; |
3883 | 4394 } |
3877 | 4395 } |
4396 while (parse_status == 0); | |
3021 | 4397 |
4398 return retval; | |
4399 } | |
4400 | |
4401 octave_value | |
3523 | 4402 eval_string (const std::string& s, bool silent, int& parse_status) |
3021 | 4403 { |
4404 octave_value retval; | |
4405 | |
4406 octave_value_list tmp = eval_string (s, silent, parse_status, 1); | |
4407 | |
4408 if (! tmp.empty ()) | |
4409 retval = tmp(0); | |
4410 | |
4411 return retval; | |
4412 } | |
4413 | |
4414 static octave_value_list | |
4415 eval_string (const octave_value& arg, bool silent, int& parse_status, | |
10315
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4416 int nargout) |
3021 | 4417 { |
3523 | 4418 std::string s = arg.string_value (); |
3021 | 4419 |
4420 if (error_state) | |
4421 { | |
3523 | 4422 error ("eval: expecting std::string argument"); |
4233 | 4423 return octave_value (-1); |
3021 | 4424 } |
4425 | |
4426 return eval_string (s, silent, parse_status, nargout); | |
4427 } | |
4428 | |
4429 DEFUN (eval, args, nargout, | |
3371 | 4430 "-*- texinfo -*-\n\ |
4431 @deftypefn {Built-in Function} {} eval (@var{try}, @var{catch})\n\ | |
4432 Parse the string @var{try} and evaluate it as if it were an Octave\n\ | |
6643 | 4433 program. If that fails, evaluate the optional string @var{catch}.\n\ |
4463 | 4434 The string @var{try} is evaluated in the current context,\n\ |
4435 so any results remain available after @code{eval} returns.\n\ | |
6643 | 4436 \n\ |
4437 The following example makes the variable @var{a} with the approximate\n\ | |
4438 value 3.1416 available.\n\ | |
4439 \n\ | |
4440 @example\n\ | |
4441 eval(\"a = acos(-1);\");\n\ | |
4442 @end example\n\ | |
4443 \n\ | |
4444 If an error occurs during the evaluation of @var{try} the @var{catch}\n\ | |
8828 | 4445 string is evaluated, as the following example shows:\n\ |
6643 | 4446 \n\ |
4447 @example\n\ | |
4448 eval ('error (\"This is a bad example\");',\n\ | |
8015
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4449 'printf (\"This error occurred:\\n%s\\n\", lasterr ());');\n\ |
7001 | 4450 @print{} This error occurred:\n\ |
8015
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|
4451 This is a bad example\n\ |
6643 | 4452 @end example\n\ |
3371 | 4453 @end deftypefn") |
3021 | 4454 { |
4455 octave_value_list retval; | |
4456 | |
4457 int nargin = args.length (); | |
4458 | |
4459 if (nargin > 0) | |
4460 { | |
10067
6f79338c269b
omission from last patch
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|
4461 unwind_protect frame; |
3021 | 4462 |
4463 if (nargin > 1) | |
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4464 { |
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|
4465 frame.protect_var (buffer_error_messages); |
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|
4466 buffer_error_messages++; |
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|
4467 } |
3021 | 4468 |
4469 int parse_status = 0; | |
4470 | |
4463 | 4471 octave_value_list tmp = eval_string (args(0), nargout > 0, |
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|
4472 parse_status, nargout); |
4463 | 4473 |
3021 | 4474 if (nargin > 1 && (parse_status != 0 || error_state)) |
10315
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|
4475 { |
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|
4476 error_state = 0; |
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|
4477 |
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|
4478 // Set up for letting the user print any messages from |
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4479 // errors that occurred in the first part of this eval(). |
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4480 |
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4481 buffer_error_messages--; |
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4482 |
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4483 tmp = eval_string (args(1), nargout > 0, parse_status, nargout); |
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4484 |
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4485 if (nargout > 0) |
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4486 retval = tmp; |
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|
4487 } |
8033
2ad5ba320b93
parse.y (Feval): Return value produced by evaluating CATCH string
John W. Eaton <jwe@octave.org>
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changeset
|
4488 else if (nargout > 0) |
10315
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4489 retval = tmp; |
3021 | 4490 } |
4491 else | |
5823 | 4492 print_usage (); |
3021 | 4493 |
4494 return retval; | |
4495 } | |
4496 | |
7562
c827f5673321
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|
4497 /* |
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4498 |
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4499 %% test/octave.test/eval/eval-1.m |
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4500 %!#test |
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|
4501 %! x = 1; |
c827f5673321
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|
4502 %! assert(eval ("x"),1); |
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4503 |
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4504 %% test/octave.test/eval/eval-2.m |
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4505 %!test |
c827f5673321
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4506 %! x = 1; |
c827f5673321
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4507 %! assert(eval ("x;")); |
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4508 |
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4509 %% test/octave.test/eval/eval-3.m |
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4510 %!test |
c827f5673321
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4511 %! x = 1; |
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4512 %! assert(eval ("x;"),1); |
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|
4513 |
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|
4514 %% FIXME |
c827f5673321
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4515 %% Disable this test as adding the ";" is redundant with eval-1 and |
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4516 %% in any case is a syntax error with assert |
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4517 %% test/octave.test/eval/eval-4.m |
c827f5673321
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4518 %!#test |
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4519 %! x = 1; |
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4520 %! assert(eval ("x");,1); |
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4521 |
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4522 %% test/octave.test/eval/eval-5.m |
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4523 %!test |
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4524 %! eval ("flipud = 2;"); |
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4525 %! assert(flipud,2); |
c827f5673321
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4526 |
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4527 %% test/octave.test/eval/eval-6.m |
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changeset
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4528 %!function y = f () |
c827f5673321
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4529 %! eval ("flipud = 2;"); |
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|
4530 %! y = flipud; |
c827f5673321
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|
4531 %!test |
c827f5673321
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4532 %! assert(f,2); |
c827f5673321
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4533 |
c827f5673321
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|
4534 %% test/octave.test/eval/eval-7.m |
c827f5673321
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changeset
|
4535 %!#test |
c827f5673321
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|
4536 %! eval ("x = 1"); |
c827f5673321
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|
4537 %! assert(x,1); |
c827f5673321
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|
4538 |
c827f5673321
move tests to individual source files
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|
4539 %% test/octave.test/eval/eval-8.m |
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diff
changeset
|
4540 %!test |
c827f5673321
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changeset
|
4541 %! eval ("x = 1;") |
c827f5673321
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changeset
|
4542 %! assert(x,1); |
c827f5673321
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|
4543 |
c827f5673321
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|
4544 %% test/octave.test/eval/eval-9.m |
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changeset
|
4545 %!test |
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|
4546 %! eval ("x = 1;"); |
c827f5673321
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changeset
|
4547 %! assert(x,1); |
c827f5673321
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changeset
|
4548 |
c827f5673321
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|
4549 %% test/octave.test/eval/eval-10.m |
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changeset
|
4550 %!#test |
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|
4551 %! eval ("x = 1") |
c827f5673321
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changeset
|
4552 %! assert(x,1); |
c827f5673321
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changeset
|
4553 |
c827f5673321
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|
4554 %% test/octave.test/eval/eval-11.m |
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changeset
|
4555 %!test |
c827f5673321
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|
4556 %! x = 1; |
c827f5673321
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changeset
|
4557 %! y = eval ("x"); |
c827f5673321
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changeset
|
4558 %! assert(y,1); |
c827f5673321
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changeset
|
4559 |
c827f5673321
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|
4560 %% test/octave.test/eval/eval-12.m |
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changeset
|
4561 %!test |
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|
4562 %! x = 1; |
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|
4563 %! y = eval ("x;"); |
c827f5673321
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changeset
|
4564 %! assert(y,1); |
c827f5673321
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changeset
|
4565 |
c827f5673321
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|
4566 %% test/octave.test/eval/eval-13.m |
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|
4567 %!test |
c827f5673321
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|
4568 %! x = 1; |
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changeset
|
4569 %! y = eval ("x;"); |
c827f5673321
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changeset
|
4570 %! assert(y,1); |
c827f5673321
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changeset
|
4571 |
c827f5673321
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changeset
|
4572 %% test/octave.test/eval/eval-14.m |
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diff
changeset
|
4573 %!test |
c827f5673321
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changeset
|
4574 %! x = 1; |
c827f5673321
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changeset
|
4575 %! y = eval ("x"); |
c827f5673321
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changeset
|
4576 %! assert(y,1); |
c827f5673321
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diff
changeset
|
4577 |
c827f5673321
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changeset
|
4578 */ |
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|
4579 |
4661 | 4580 DEFUN (assignin, args, , |
4297 | 4581 "-*- texinfo -*-\n\ |
4582 @deftypefn {Built-in Function} {} assignin (@var{context}, @var{varname}, @var{value})\n\ | |
4583 Assign @var{value} to @var{varname} in context @var{context}, which\n\ | |
4584 may be either @code{\"base\"} or @code{\"caller\"}.\n\ | |
4585 @end deftypefn") | |
4586 { | |
4587 octave_value_list retval; | |
4588 | |
4589 int nargin = args.length (); | |
4590 | |
4591 if (nargin == 3) | |
4592 { | |
4593 std::string context = args(0).string_value (); | |
4594 | |
4595 if (! error_state) | |
4596 { | |
10315
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changeset
|
4597 unwind_protect frame; |
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|
4598 |
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4599 if (context == "caller") |
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4600 octave_call_stack::goto_caller_frame (); |
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4601 else if (context == "base") |
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|
4602 octave_call_stack::goto_base_frame (); |
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4603 else |
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4604 error ("assignin: context must be \"caller\" or \"base\""); |
57a59eae83cc
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diff
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|
4605 |
57a59eae83cc
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diff
changeset
|
4606 if (! error_state) |
57a59eae83cc
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diff
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|
4607 { |
57a59eae83cc
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4608 frame.add_fcn (octave_call_stack::pop); |
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untabify src C++ source files
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4609 |
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4610 std::string nm = args(1).string_value (); |
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4611 |
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|
4612 if (! error_state) |
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|
4613 { |
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|
4614 if (valid_identifier (nm)) |
57a59eae83cc
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|
4615 symbol_table::varref (nm) = args(2); |
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4616 else |
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4617 error ("assignin: invalid variable name"); |
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|
4618 } |
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|
4619 else |
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4620 error ("assignin: expecting variable name as second argument"); |
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|
4621 } |
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4622 } |
4297 | 4623 else |
4624 error ("assignin: expecting string as first argument"); | |
4625 } | |
4626 else | |
5823 | 4627 print_usage (); |
4297 | 4628 |
4629 return retval; | |
4630 } | |
4631 | |
4245 | 4632 DEFUN (evalin, args, nargout, |
4633 "-*- texinfo -*-\n\ | |
4634 @deftypefn {Built-in Function} {} evalin (@var{context}, @var{try}, @var{catch})\n\ | |
4635 Like @code{eval}, except that the expressions are evaluated in the\n\ | |
4636 context @var{context}, which may be either @code{\"caller\"} or\n\ | |
4246 | 4637 @code{\"base\"}.\n\ |
4245 | 4638 @end deftypefn") |
4639 { | |
4640 octave_value_list retval; | |
4641 | |
4642 int nargin = args.length (); | |
4643 | |
4644 if (nargin > 1) | |
4645 { | |
4646 std::string context = args(0).string_value (); | |
4647 | |
4648 if (! error_state) | |
4649 { | |
10315
57a59eae83cc
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4650 unwind_protect frame; |
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|
4651 |
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4652 if (context == "caller") |
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4653 octave_call_stack::goto_caller_frame (); |
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4654 else if (context == "base") |
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4655 octave_call_stack::goto_base_frame (); |
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|
4656 else |
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|
4657 error ("evalin: context must be \"caller\" or \"base\""); |
57a59eae83cc
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diff
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|
4658 |
57a59eae83cc
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|
4659 if (! error_state) |
57a59eae83cc
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
4660 { |
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changeset
|
4661 frame.add_fcn (octave_call_stack::pop); |
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|
4662 |
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|
4663 if (nargin > 2) |
57a59eae83cc
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John W. Eaton <jwe@octave.org>
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changeset
|
4664 { |
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|
4665 frame.protect_var (buffer_error_messages); |
57a59eae83cc
untabify src C++ source files
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|
4666 buffer_error_messages++; |
57a59eae83cc
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diff
changeset
|
4667 } |
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|
4668 |
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4669 int parse_status = 0; |
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|
4670 |
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4671 octave_value_list tmp = eval_string (args(1), nargout > 0, |
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|
4672 parse_status, nargout); |
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|
4673 |
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|
4674 if (nargout > 0) |
57a59eae83cc
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|
4675 retval = tmp; |
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|
4676 |
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|
4677 if (nargin > 2 && (parse_status != 0 || error_state)) |
57a59eae83cc
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|
4678 { |
57a59eae83cc
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diff
changeset
|
4679 error_state = 0; |
57a59eae83cc
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changeset
|
4680 |
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|
4681 // Set up for letting the user print any messages from |
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4682 // errors that occurred in the first part of this eval(). |
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|
4683 |
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|
4684 buffer_error_messages--; |
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|
4685 |
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|
4686 tmp = eval_string (args(2), nargout > 0, |
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|
4687 parse_status, nargout); |
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|
4688 |
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|
4689 retval = (nargout > 0) ? tmp : octave_value_list (); |
57a59eae83cc
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|
4690 } |
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changeset
|
4691 } |
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|
4692 } |
4245 | 4693 else |
4694 error ("evalin: expecting string as first argument"); | |
4695 } | |
4696 else | |
5823 | 4697 print_usage (); |
4245 | 4698 |
4699 return retval; | |
4700 } | |
4701 | |
8311
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
John W. Eaton <jwe@octave.org>
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8283
diff
changeset
|
4702 DEFUN (__parser_debug_flag__, args, nargout, |
8812
7d48766c21a5
use consistent format for doc strings of internal functions
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diff
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|
4703 "-*- texinfo -*-\n\ |
7d48766c21a5
use consistent format for doc strings of internal functions
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|
4704 @deftypefn {Built-in Function} {@var{old_val} =} __parser_debug_flag__ (@var{new_val}))\n\ |
7d48766c21a5
use consistent format for doc strings of internal functions
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diff
changeset
|
4705 Undocumented internal function.\n\ |
7d48766c21a5
use consistent format for doc strings of internal functions
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diff
changeset
|
4706 @end deftypefn") |
8311
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
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diff
changeset
|
4707 { |
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
John W. Eaton <jwe@octave.org>
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8283
diff
changeset
|
4708 octave_value retval; |
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
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diff
changeset
|
4709 |
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
John W. Eaton <jwe@octave.org>
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8283
diff
changeset
|
4710 bool debug_flag = octave_debug; |
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
John W. Eaton <jwe@octave.org>
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changeset
|
4711 |
7124bffc89c7
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diff
changeset
|
4712 retval = set_internal_variable (debug_flag, args, nargout, |
10315
57a59eae83cc
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|
4713 "__parser_debug_flag__"); |
8311
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4714 |
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
John W. Eaton <jwe@octave.org>
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8283
diff
changeset
|
4715 octave_debug = debug_flag; |
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
John W. Eaton <jwe@octave.org>
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8283
diff
changeset
|
4716 |
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
John W. Eaton <jwe@octave.org>
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8283
diff
changeset
|
4717 return retval; |
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
John W. Eaton <jwe@octave.org>
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8283
diff
changeset
|
4718 } |