Mercurial > octave-antonio
annotate src/oct-parse.yy @ 11258:795c97ace02c
eliminate some possible memory leaks
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 17 Nov 2010 02:40:43 -0500 |
parents | 8d8e10058df6 |
children | 2da532d0f41c |
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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 $$ = new tree_decl_elt ($1, $4); |
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1029 } |
10206
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1030 | magic_tilde |
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1031 { |
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support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1032 $$ = new tree_decl_elt ($1); |
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support Matlab-style empty output/input arguments
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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 $$ = $1; |
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1063 } |
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1064 ; |
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1065 |
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1066 if_cmd_list1 : expression opt_sep opt_list |
11091
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Matlab compatible short-circuit behavior for & and | operators
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|
1067 { |
5677f3f7b5fa
Matlab compatible short-circuit behavior for & and | operators
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|
1068 $1->mark_braindead_shortcircuit (curr_fcn_file_full_name); |
5677f3f7b5fa
Matlab compatible short-circuit behavior for & and | operators
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|
1069 |
5677f3f7b5fa
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|
1070 $$ = 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 $$ = $1; |
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1076 } |
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1077 ; |
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1078 |
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1079 elseif_clause : ELSEIF stash_comment opt_sep expression opt_sep opt_list |
11091
5677f3f7b5fa
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|
1080 { |
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|
1081 $4->mark_braindead_shortcircuit (curr_fcn_file_full_name); |
5677f3f7b5fa
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|
1082 |
5677f3f7b5fa
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|
1083 $$ = make_elseif_clause ($1, $4, $6, $2); |
5677f3f7b5fa
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|
1084 } |
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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 { $$ = new tree_switch_case_list (); } |
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1104 | case_list1 |
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1105 { $$ = $1; } |
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1106 | case_list1 default_case |
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1107 { |
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1108 $1->append ($2); |
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1109 $$ = $1; |
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1110 } |
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1111 ; |
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1112 |
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1113 case_list1 : switch_case |
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1114 { $$ = new tree_switch_case_list ($1); } |
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1115 | case_list1 switch_case |
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1116 { |
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1117 $1->append ($2); |
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1118 $$ = $1; |
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1119 } |
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1120 ; |
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1121 |
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1122 switch_case : CASE stash_comment opt_sep expression opt_sep opt_list |
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1123 { $$ = make_switch_case ($1, $4, $6, $2); } |
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1124 ; |
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1125 |
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1126 default_case : OTHERWISE stash_comment opt_sep opt_list |
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1127 { |
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1128 $$ = new tree_switch_case ($4, $2); |
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1129 } |
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1130 ; |
2970 | 1131 |
1132 // ======= | |
1133 // Looping | |
1134 // ======= | |
1135 | |
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1136 loop_command : WHILE stash_comment expression opt_sep opt_list END |
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1137 { |
11091
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1138 $3->mark_braindead_shortcircuit (curr_fcn_file_full_name); |
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1139 |
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1140 if (! ($$ = make_while_command ($1, $3, $5, $6, $2))) |
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1141 ABORT_PARSE; |
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1142 } |
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1143 | DO stash_comment opt_sep opt_list UNTIL expression |
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1144 { |
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1145 if (! ($$ = make_do_until_command ($5, $4, $6, $2))) |
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1146 ABORT_PARSE; |
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1147 } |
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1148 | FOR stash_comment assign_lhs '=' expression opt_sep opt_list END |
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1149 { |
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1150 if (! ($$ = make_for_command ($1, $3, $5, $7, $8, $2))) |
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1151 ABORT_PARSE; |
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1152 } |
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1153 | FOR stash_comment '(' assign_lhs '=' expression ')' opt_sep opt_list END |
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1154 { |
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1155 if (! ($$ = make_for_command ($1, $4, $6, $9, $10, $2))) |
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1156 ABORT_PARSE; |
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1157 } |
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1158 ; |
2970 | 1159 |
1160 // ======= | |
1161 // Jumping | |
1162 // ======= | |
1163 | |
10315
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1164 jump_command : BREAK |
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1165 { |
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1166 if (! ($$ = make_break_command ($1))) |
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1167 ABORT_PARSE; |
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1168 } |
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1169 | CONTINUE |
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1170 { |
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1171 if (! ($$ = make_continue_command ($1))) |
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1172 ABORT_PARSE; |
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1173 } |
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1174 | FUNC_RET |
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1175 { |
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1176 if (! ($$ = make_return_command ($1))) |
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1177 ABORT_PARSE; |
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1178 } |
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1179 ; |
2970 | 1180 |
1181 // ========== | |
1182 // Exceptions | |
1183 // ========== | |
1184 | |
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1185 except_command : UNWIND stash_comment opt_sep opt_list CLEANUP |
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1186 stash_comment opt_sep opt_list END |
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1187 { |
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1188 if (! ($$ = make_unwind_command ($1, $4, $8, $9, $2, $6))) |
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1189 ABORT_PARSE; |
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1190 } |
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1191 | TRY stash_comment opt_sep opt_list CATCH |
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1192 stash_comment opt_sep opt_list END |
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1193 { |
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1194 if (! ($$ = make_try_command ($1, $4, $8, $9, $2, $6))) |
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1195 ABORT_PARSE; |
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1196 } |
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1197 | TRY stash_comment opt_sep opt_list END |
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1198 { |
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1199 if (! ($$ = make_try_command ($1, $4, 0, $5, $2, 0))) |
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1200 ABORT_PARSE; |
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1201 } |
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1202 ; |
2970 | 1203 |
1204 // =========================================== | |
1205 // Some `subroutines' for function definitions | |
1206 // =========================================== | |
1207 | |
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1208 push_fcn_symtab : // empty |
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1209 { |
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1210 current_function_depth++; |
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1211 |
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1212 if (max_function_depth < current_function_depth) |
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1213 max_function_depth = current_function_depth; |
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1214 |
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1215 symtab_context.push (symbol_table::current_scope ()); |
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1216 symbol_table::set_scope (symbol_table::alloc_scope ()); |
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1217 |
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1218 if (! reading_script_file && current_function_depth == 1 |
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1219 && ! parsing_subfunctions) |
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1220 primary_fcn_scope = symbol_table::current_scope (); |
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1221 |
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1222 if (reading_script_file && current_function_depth > 1) |
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1223 yyerror ("nested functions not implemented in this context"); |
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1224 } |
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1225 ; |
2970 | 1226 |
1227 // =========================== | |
1228 // List of function parameters | |
1229 // =========================== | |
1230 | |
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1231 param_list_beg : '(' |
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1232 { |
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1233 lexer_flags.looking_at_parameter_list = true; |
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1234 |
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1235 if (lexer_flags.looking_at_function_handle) |
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1236 { |
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1237 symtab_context.push (symbol_table::current_scope ()); |
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1238 symbol_table::set_scope (symbol_table::alloc_scope ()); |
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1239 lexer_flags.looking_at_function_handle--; |
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1240 } |
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1241 } |
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1242 ; |
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1243 |
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1244 param_list_end : ')' |
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1245 { |
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1246 lexer_flags.looking_at_parameter_list = false; |
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1247 lexer_flags.looking_for_object_index = false; |
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1248 } |
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1249 ; |
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1250 |
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1251 param_list : param_list_beg param_list1 param_list_end |
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1252 { |
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1253 lexer_flags.quote_is_transpose = false; |
57a59eae83cc
untabify src C++ source files
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|
1254 $$ = $2; |
57a59eae83cc
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|
1255 } |
57a59eae83cc
untabify src C++ source files
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|
1256 | param_list_beg error |
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|
1257 { |
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|
1258 yyerror ("invalid parameter list"); |
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|
1259 $$ = 0; |
57a59eae83cc
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|
1260 ABORT_PARSE; |
57a59eae83cc
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|
1261 } |
57a59eae83cc
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changeset
|
1262 ; |
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|
1263 |
57a59eae83cc
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|
1264 param_list1 : // empty |
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|
1265 { $$ = 0; } |
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|
1266 | param_list2 |
57a59eae83cc
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|
1267 { |
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|
1268 $1->mark_as_formal_parameters (); |
57a59eae83cc
untabify src C++ source files
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1269 if ($1->validate (tree_parameter_list::in)) |
57a59eae83cc
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|
1270 $$ = $1; |
57a59eae83cc
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|
1271 else |
57a59eae83cc
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changeset
|
1272 ABORT_PARSE; |
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changeset
|
1273 } |
57a59eae83cc
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changeset
|
1274 ; |
57a59eae83cc
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changeset
|
1275 |
57a59eae83cc
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|
1276 param_list2 : decl2 |
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|
1277 { $$ = new tree_parameter_list ($1); } |
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|
1278 | param_list2 ',' decl2 |
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|
1279 { |
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|
1280 $1->append ($3); |
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|
1281 $$ = $1; |
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|
1282 } |
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|
1283 ; |
2970 | 1284 |
1285 // =================================== | |
1286 // List of function return value names | |
1287 // =================================== | |
1288 | |
10315
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|
1289 return_list : '[' ']' |
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|
1290 { |
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changeset
|
1291 lexer_flags.looking_at_return_list = false; |
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untabify src C++ source files
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|
1292 $$ = new tree_parameter_list (); |
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|
1293 } |
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diff
changeset
|
1294 | return_list1 |
57a59eae83cc
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|
1295 { |
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changeset
|
1296 lexer_flags.looking_at_return_list = false; |
57a59eae83cc
untabify src C++ source files
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|
1297 if ($1->validate (tree_parameter_list::out)) |
57a59eae83cc
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|
1298 $$ = $1; |
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changeset
|
1299 else |
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|
1300 ABORT_PARSE; |
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|
1301 } |
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|
1302 | '[' return_list1 ']' |
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|
1303 { |
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|
1304 lexer_flags.looking_at_return_list = false; |
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untabify src C++ source files
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|
1305 if ($2->validate (tree_parameter_list::out)) |
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|
1306 $$ = $2; |
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changeset
|
1307 else |
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changeset
|
1308 ABORT_PARSE; |
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|
1309 } |
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changeset
|
1310 ; |
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|
1311 |
57a59eae83cc
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|
1312 return_list1 : identifier |
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|
1313 { $$ = new tree_parameter_list (new tree_decl_elt ($1)); } |
57a59eae83cc
untabify src C++ source files
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|
1314 | return_list1 ',' identifier |
57a59eae83cc
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changeset
|
1315 { |
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changeset
|
1316 $1->append (new tree_decl_elt ($3)); |
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|
1317 $$ = $1; |
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changeset
|
1318 } |
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changeset
|
1319 ; |
2970 | 1320 |
7715
5b4d278ec828
parse scripts completely before executing
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7699
diff
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|
1321 // =========== |
5b4d278ec828
parse scripts completely before executing
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7699
diff
changeset
|
1322 // Script file |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
1323 // =========== |
5b4d278ec828
parse scripts completely before executing
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7699
diff
changeset
|
1324 |
10315
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|
1325 script_file : SCRIPT_FILE opt_list END_OF_INPUT |
57a59eae83cc
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|
1326 { |
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|
1327 tree_statement *end_of_script |
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|
1328 = make_end ("endscript", input_line_number, |
57a59eae83cc
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changeset
|
1329 current_input_column); |
57a59eae83cc
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changeset
|
1330 |
57a59eae83cc
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changeset
|
1331 make_script ($2, end_of_script); |
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changeset
|
1332 |
57a59eae83cc
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changeset
|
1333 $$ = 0; |
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changeset
|
1334 } |
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changeset
|
1335 ; |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1336 |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
1337 // ============= |
25ed2d6aacf6
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David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
1338 // Function file |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
1339 // ============= |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
1340 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
1341 function_file : FUNCTION_FILE function_list opt_sep END_OF_INPUT |
10315
57a59eae83cc
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|
1342 { $$ = 0; } |
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changeset
|
1343 ; |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
1344 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
1345 function_list : function |
10315
57a59eae83cc
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diff
changeset
|
1346 | function_list sep function |
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diff
changeset
|
1347 ; |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
1348 |
2970 | 1349 // =================== |
1350 // Function definition | |
1351 // =================== | |
1352 | |
10315
57a59eae83cc
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|
1353 function_beg : push_fcn_symtab FCN stash_comment |
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|
1354 { |
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|
1355 $$ = $3; |
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changeset
|
1356 |
57a59eae83cc
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|
1357 if (reading_classdef_file || lexer_flags.parsing_classdef) |
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|
1358 lexer_flags.maybe_classdef_get_set_method = true; |
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changeset
|
1359 } |
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changeset
|
1360 ; |
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changeset
|
1361 |
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changeset
|
1362 function : function_beg function1 |
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|
1363 { |
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|
1364 $$ = finish_function (0, $2, $1); |
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|
1365 recover_from_parsing_function (); |
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|
1366 } |
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|
1367 | function_beg return_list '=' function1 |
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|
1368 { |
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|
1369 $$ = finish_function ($2, $4, $1); |
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|
1370 recover_from_parsing_function (); |
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|
1371 } |
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changeset
|
1372 ; |
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changeset
|
1373 |
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changeset
|
1374 fcn_name : identifier |
57a59eae83cc
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changeset
|
1375 { |
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|
1376 std::string id_name = $1->name (); |
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|
1377 |
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|
1378 lexer_flags.parsed_function_name = true; |
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|
1379 lexer_flags.defining_func = false; |
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|
1380 lexer_flags.maybe_classdef_get_set_method = false; |
9476 | 1381 |
10315
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|
1382 $$ = $1; |
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changeset
|
1383 } |
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|
1384 | GET '.' identifier |
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changeset
|
1385 { |
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changeset
|
1386 lexer_flags.maybe_classdef_get_set_method = false; |
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changeset
|
1387 $$ = $3; |
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changeset
|
1388 } |
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changeset
|
1389 | SET '.' identifier |
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changeset
|
1390 { |
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1391 lexer_flags.maybe_classdef_get_set_method = false; |
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1392 $$ = $3; |
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1393 } |
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1394 ; |
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1395 |
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1396 function1 : fcn_name function2 |
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1397 { |
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1398 std::string fname = $1->name (); |
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1399 |
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1400 delete $1; |
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1401 |
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1402 if (! ($$ = frob_function (fname, $2))) |
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1403 ABORT_PARSE; |
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1404 } |
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1405 ; |
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1406 |
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1407 function2 : param_list opt_sep opt_list function_end |
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1408 { $$ = start_function ($1, $3, $4); } |
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1409 | opt_sep opt_list function_end |
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1410 { $$ = start_function (0, $2, $3); } |
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1411 ; |
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1412 |
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1413 function_end : END |
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1414 { |
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1415 endfunction_found = true; |
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1416 if (end_token_ok ($1, token::function_end)) |
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1417 $$ = make_end ("endfunction", $1->line (), $1->column ()); |
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1418 else |
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1419 ABORT_PARSE; |
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1420 } |
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1421 | END_OF_INPUT |
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1422 { |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
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diff
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|
1423 // A lot of tests are based on the assumption that this is OK |
10315
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1424 // if (reading_script_file) |
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1425 // { |
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1426 // yyerror ("function body open at end of script"); |
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1427 // YYABORT; |
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1428 // } |
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1429 |
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1430 if (endfunction_found) |
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1431 { |
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1432 yyerror ("inconsistent function endings -- " |
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1433 "if one function is explicitly ended, " |
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1434 "so must all the others"); |
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1435 YYABORT; |
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1436 } |
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1437 |
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1438 if (! (reading_fcn_file || reading_script_file |
10130
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oct-parse.yy (eval_string): save and set reading_{script,fcn,classdef}_file vars
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|
1439 || get_input_from_eval_string)) |
10315
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1440 { |
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1441 yyerror ("function body open at end of input"); |
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1442 YYABORT; |
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1443 } |
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1444 |
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1445 if (reading_classdef_file) |
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1446 { |
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1447 yyerror ("classdef body open at end of input"); |
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1448 YYABORT; |
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1449 } |
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1450 |
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1451 $$ = make_end ("endfunction", input_line_number, |
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|
1452 current_input_column); |
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|
1453 } |
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|
1454 ; |
2970 | 1455 |
9476 | 1456 // ======== |
1457 // Classdef | |
1458 // ======== | |
1459 | |
10315
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1460 classdef_beg : CLASSDEF stash_comment |
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|
1461 { |
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1462 $$ = 0; |
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1463 lexer_flags.parsing_classdef = true; |
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1464 } |
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|
1465 ; |
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|
1466 |
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1467 classdef_end : END |
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1468 { |
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1469 lexer_flags.parsing_classdef = false; |
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1470 |
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1471 if (end_token_ok ($1, token::classdef_end)) |
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1472 $$ = make_end ("endclassdef", $1->line (), $1->column ()); |
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1473 else |
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|
1474 ABORT_PARSE; |
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|
1475 } |
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|
1476 ; |
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|
1477 |
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1478 classdef1 : classdef_beg opt_attr_list identifier opt_superclasses |
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1479 { $$ = 0; } |
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|
1480 ; |
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|
1481 |
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1482 classdef : classdef1 '\n' class_body '\n' stash_comment classdef_end |
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1483 { $$ = 0; } |
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|
1484 ; |
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1485 |
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1486 opt_attr_list : // empty |
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1487 { $$ = 0; } |
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|
1488 | '(' attr_list ')' |
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1489 { $$ = 0; } |
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|
1490 ; |
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|
1491 |
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1492 attr_list : attr |
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1493 { $$ = 0; } |
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1494 | attr_list ',' attr |
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1495 { $$ = 0; } |
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|
1496 ; |
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|
1497 |
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1498 attr : identifier |
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1499 { $$ = 0; } |
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1500 | identifier '=' decl_param_init expression |
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1501 { $$ = 0; } |
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1502 | EXPR_NOT identifier |
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1503 { $$ = 0; } |
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1504 ; |
9476 | 1505 |
1506 opt_superclasses | |
10315
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1507 : // empty |
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1508 { $$ = 0; } |
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1509 | superclasses |
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1510 { $$ = 0; } |
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|
1511 ; |
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1512 |
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1513 superclasses : EXPR_LT identifier '.' identifier |
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1514 { $$ = 0; } |
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|
1515 | EXPR_LT identifier |
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1516 { $$ = 0; } |
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1517 | superclasses EXPR_AND identifier '.' identifier |
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1518 { $$ = 0; } |
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1519 | superclasses EXPR_AND identifier |
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1520 { $$ = 0; } |
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|
1521 ; |
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1522 |
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1523 class_body : properties_block |
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1524 { $$ = 0; } |
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1525 | methods_block |
57a59eae83cc
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|
1526 { $$ = 0; } |
57a59eae83cc
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|
1527 | events_block |
57a59eae83cc
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|
1528 { $$ = 0; } |
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1529 | class_body '\n' properties_block |
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|
1530 { $$ = 0; } |
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1531 | class_body '\n' methods_block |
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1532 { $$ = 0; } |
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1533 | class_body '\n' events_block |
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|
1534 { $$ = 0; } |
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changeset
|
1535 ; |
57a59eae83cc
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1536 |
57a59eae83cc
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1537 properties_beg : PROPERTIES stash_comment |
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1538 { $$ = 0; } |
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|
1539 ; |
9476 | 1540 |
1541 properties_block | |
10315
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1542 : properties_beg opt_attr_list '\n' properties_list '\n' END |
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1543 { $$ = 0; } |
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1544 ; |
9476 | 1545 |
1546 properties_list | |
10315
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|
1547 : class_property |
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|
1548 { $$ = 0; } |
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1549 | properties_list '\n' class_property |
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1550 { $$ = 0; } |
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|
1551 ; |
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1552 |
57a59eae83cc
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1553 class_property : identifier |
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1554 { $$ = 0; } |
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1555 | identifier '=' decl_param_init expression ';' |
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1556 { $$ = 0; } |
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|
1557 ; |
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1558 |
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1559 methods_beg : METHODS stash_comment |
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1560 { $$ = 0; } |
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|
1561 ; |
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1562 |
57a59eae83cc
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1563 methods_block : methods_beg opt_attr_list '\n' methods_list '\n' END |
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1564 { $$ = 0; } |
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|
1565 ; |
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|
1566 |
57a59eae83cc
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1567 methods_list : function |
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1568 { $$ = 0; } |
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1569 | methods_list '\n' function |
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|
1570 { $$ = 0; } |
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|
1571 ; |
57a59eae83cc
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1572 |
57a59eae83cc
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1573 events_beg : EVENTS stash_comment |
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1574 { $$ = 0; } |
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|
1575 ; |
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1576 |
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1577 events_block : events_beg opt_attr_list '\n' events_list '\n' END |
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1578 { $$ = 0; } |
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|
1579 ; |
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1580 |
57a59eae83cc
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1581 events_list : class_event |
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1582 { $$ = 0; } |
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1583 | events_list '\n' class_event |
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1584 { $$ = 0; } |
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|
1585 ; |
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1586 |
57a59eae83cc
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|
1587 class_event : identifier |
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1588 { $$ = 0; } |
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|
1589 ; |
9476 | 1590 |
2970 | 1591 // ============= |
1592 // Miscellaneous | |
1593 // ============= | |
1594 | |
10315
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1595 stash_comment : // empty |
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1596 { $$ = octave_comment_buffer::get_comment (); } |
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1597 ; |
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1598 |
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1599 parse_error : LEXICAL_ERROR |
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1600 { yyerror ("parse error"); } |
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1601 | error |
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1602 ; |
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1603 |
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1604 sep_no_nl : ',' |
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1605 { $$ = ','; } |
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1606 | ';' |
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1607 { $$ = ';'; } |
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1608 | sep_no_nl ',' |
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1609 { $$ = $1; } |
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1610 | sep_no_nl ';' |
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1611 { $$ = $1; } |
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|
1612 ; |
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1613 |
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1614 opt_sep_no_nl : // empty |
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1615 { $$ = 0; } |
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1616 | sep_no_nl |
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1617 { $$ = $1; } |
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|
1618 ; |
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1619 |
57a59eae83cc
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1620 sep : ',' |
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1621 { $$ = ','; } |
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1622 | ';' |
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1623 { $$ = ';'; } |
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1624 | '\n' |
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1625 { $$ = '\n'; } |
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1626 | sep ',' |
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1627 { $$ = $1; } |
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1628 | sep ';' |
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1629 { $$ = $1; } |
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1630 | sep '\n' |
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1631 { $$ = $1; } |
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|
1632 ; |
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1633 |
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1634 opt_sep : // empty |
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1635 { $$ = 0; } |
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1636 | sep |
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1637 { $$ = $1; } |
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1638 ; |
2525 | 1639 |
1 | 1640 %% |
1641 | |
666 | 1642 // Generic error messages. |
1643 | |
1 | 1644 static void |
2805 | 1645 yyerror (const char *s) |
1 | 1646 { |
143 | 1647 int err_col = current_input_column - 1; |
1 | 1648 |
5765 | 1649 std::ostringstream output_buf; |
1 | 1650 |
9476 | 1651 if (reading_fcn_file || reading_script_file || reading_classdef_file) |
1005 | 1652 output_buf << "parse error near line " << input_line_number |
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1653 << " of file " << curr_fcn_file_full_name; |
1005 | 1654 else |
1655 output_buf << "parse error:"; | |
581 | 1656 |
1005 | 1657 if (s && strcmp (s, "parse error") != 0) |
1658 output_buf << "\n\n " << s; | |
1659 | |
1660 output_buf << "\n\n"; | |
1 | 1661 |
1755 | 1662 if (! current_input_line.empty ()) |
1 | 1663 { |
1755 | 1664 size_t len = current_input_line.length (); |
1060 | 1665 |
1755 | 1666 if (current_input_line[len-1] == '\n') |
1667 current_input_line.resize (len-1); | |
1005 | 1668 |
4051 | 1669 // Print the line, maybe with a pointer near the error token. |
1005 | 1670 |
1755 | 1671 output_buf << ">>> " << current_input_line << "\n"; |
1060 | 1672 |
1673 if (err_col == 0) | |
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1674 err_col = len; |
1060 | 1675 |
1676 for (int i = 0; i < err_col + 3; i++) | |
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1677 output_buf << " "; |
1060 | 1678 |
1679 output_buf << "^"; | |
1 | 1680 } |
1005 | 1681 |
5765 | 1682 output_buf << "\n"; |
1683 | |
1684 std::string msg = output_buf.str (); | |
1685 | |
1686 parse_error ("%s", msg.c_str ()); | |
1 | 1687 } |
1688 | |
666 | 1689 // Error mesages for mismatched end tokens. |
1690 | |
496 | 1691 static void |
2805 | 1692 end_error (const char *type, token::end_tok_type ettype, int l, int c) |
496 | 1693 { |
2805 | 1694 static const char *fmt |
1695 = "`%s' command matched by `%s' near line %d column %d"; | |
496 | 1696 |
1697 switch (ettype) | |
1698 { | |
1699 case token::simple_end: | |
1700 error (fmt, type, "end", l, c); | |
1701 break; | |
777 | 1702 |
496 | 1703 case token::for_end: |
1704 error (fmt, type, "endfor", l, c); | |
1705 break; | |
777 | 1706 |
496 | 1707 case token::function_end: |
1708 error (fmt, type, "endfunction", l, c); | |
1709 break; | |
777 | 1710 |
9476 | 1711 case token::classdef_end: |
1712 error (fmt, type, "endclassdef", l, c); | |
1713 break; | |
1714 | |
496 | 1715 case token::if_end: |
1716 error (fmt, type, "endif", l, c); | |
1717 break; | |
777 | 1718 |
3233 | 1719 case token::switch_end: |
1720 error (fmt, type, "endswitch", l, c); | |
1721 break; | |
1722 | |
496 | 1723 case token::while_end: |
1724 error (fmt, type, "endwhile", l, c); | |
1725 break; | |
777 | 1726 |
5400 | 1727 case token::try_catch_end: |
1728 error (fmt, type, "end_try_catch", l, c); | |
1729 break; | |
1730 | |
1371 | 1731 case token::unwind_protect_end: |
1732 error (fmt, type, "end_unwind_protect", l, c); | |
1733 break; | |
1734 | |
496 | 1735 default: |
1736 panic_impossible (); | |
1737 break; | |
1738 } | |
1739 } | |
1740 | |
666 | 1741 // Check to see that end tokens are properly matched. |
1742 | |
2857 | 1743 static bool |
1744 end_token_ok (token *tok, token::end_tok_type expected) | |
143 | 1745 { |
2857 | 1746 bool retval = true; |
1747 | |
143 | 1748 token::end_tok_type ettype = tok->ettype (); |
2857 | 1749 |
143 | 1750 if (ettype != expected && ettype != token::simple_end) |
1751 { | |
2857 | 1752 retval = false; |
1753 | |
143 | 1754 yyerror ("parse error"); |
1755 | |
1756 int l = tok->line (); | |
1757 int c = tok->column (); | |
1758 | |
1759 switch (expected) | |
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1760 { |
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1761 case token::classdef_end: |
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1762 end_error ("classdef", ettype, l, c); |
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1763 break; |
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1764 |
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1765 case token::for_end: |
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1766 end_error ("for", ettype, l, c); |
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1767 break; |
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1768 |
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1769 case token::function_end: |
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1770 end_error ("function", ettype, l, c); |
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1771 break; |
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1772 |
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1773 case token::if_end: |
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1774 end_error ("if", ettype, l, c); |
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1775 break; |
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1776 |
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1777 case token::try_catch_end: |
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1778 end_error ("try", ettype, l, c); |
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1779 break; |
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1780 |
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1781 case token::switch_end: |
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1782 end_error ("switch", ettype, l, c); |
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1783 break; |
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1784 |
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1785 case token::unwind_protect_end: |
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1786 end_error ("unwind_protect", ettype, l, c); |
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1787 break; |
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1788 |
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1789 case token::while_end: |
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1790 end_error ("while", ettype, l, c); |
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1791 break; |
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1792 |
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1793 default: |
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1794 panic_impossible (); |
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1795 break; |
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1796 } |
143 | 1797 } |
2857 | 1798 |
1799 return retval; | |
143 | 1800 } |
1801 | |
666 | 1802 // Maybe print a warning if an assignment expression is used as the |
1803 // test in a logical expression. | |
1804 | |
496 | 1805 static void |
1806 maybe_warn_assign_as_truth_value (tree_expression *expr) | |
1 | 1807 { |
5781 | 1808 if (expr->is_assignment_expression () |
2961 | 1809 && expr->paren_count () < 2) |
1 | 1810 { |
8974
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1811 if (curr_fcn_file_full_name.empty ()) |
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1812 warning_with_id |
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1813 ("Octave:assign-as-truth-value", |
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1814 "suggest parenthesis around assignment used as truth value"); |
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1815 else |
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1816 warning_with_id |
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1817 ("Octave:assign-as-truth-value", |
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1818 "suggest parenthesis around assignment used as truth value near line %d, column %d in file `%s'", |
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1819 expr->line (), expr->column (), curr_fcn_file_full_name.c_str ()); |
1 | 1820 } |
1821 } | |
578 | 1822 |
2764 | 1823 // Maybe print a warning about switch labels that aren't constants. |
1824 | |
1825 static void | |
1826 maybe_warn_variable_switch_label (tree_expression *expr) | |
1827 { | |
5781 | 1828 if (! expr->is_constant ()) |
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1829 { |
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1830 if (curr_fcn_file_full_name.empty ()) |
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1831 warning_with_id ("Octave:variable-switch-label", |
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1832 "variable switch label"); |
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1833 else |
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1834 warning_with_id |
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1835 ("Octave:variable-switch-label", |
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1836 "variable switch label near line %d, column %d in file `%s'", |
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1837 expr->line (), expr->column (), curr_fcn_file_full_name.c_str ()); |
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1838 } |
2764 | 1839 } |
1840 | |
2533 | 1841 static tree_expression * |
1842 fold (tree_binary_expression *e) | |
1843 { | |
3110 | 1844 tree_expression *retval = e; |
1845 | |
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1846 unwind_protect frame; |
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1847 |
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1848 frame.protect_var (error_state); |
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1849 frame.protect_var (warning_state); |
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1850 |
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1851 frame.protect_var (discard_error_messages); |
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1852 frame.protect_var (discard_warning_messages); |
4452 | 1853 |
3815 | 1854 discard_error_messages = true; |
4452 | 1855 discard_warning_messages = true; |
2533 | 1856 |
1857 tree_expression *op1 = e->lhs (); | |
1858 tree_expression *op2 = e->rhs (); | |
1859 | |
5161 | 1860 octave_value::binary_op op_type = e->op_type (); |
1861 | |
1862 if (op1->is_constant () && op2->is_constant () | |
5781 | 1863 && (! ((warning_enabled ("Octave:associativity-change") |
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1864 && (op_type == POW || op_type == EPOW)) |
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1865 || (warning_enabled ("Octave:precedence-change") |
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1866 && (op_type == EXPR_OR || op_type == EXPR_OR_OR))))) |
2533 | 1867 { |
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1868 octave_value tmp = e->rvalue1 (); |
2533 | 1869 |
3489 | 1870 if (! (error_state || warning_state)) |
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1871 { |
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1872 tree_constant *tc_retval |
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1873 = new tree_constant (tmp, op1->line (), op1->column ()); |
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1874 |
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1875 std::ostringstream buf; |
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1876 |
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1877 tree_print_code tpc (buf); |
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1878 |
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1879 e->accept (tpc); |
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1880 |
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1881 tc_retval->stash_original_text (buf.str ()); |
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1882 |
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1883 delete e; |
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1884 |
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1885 retval = tc_retval; |
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1886 } |
2533 | 1887 } |
3110 | 1888 |
3292 | 1889 return retval; |
1890 } | |
1891 | |
1892 static tree_expression * | |
1893 fold (tree_unary_expression *e) | |
1894 { | |
1895 tree_expression *retval = e; | |
1896 | |
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1897 unwind_protect frame; |
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1898 |
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1899 frame.protect_var (error_state); |
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1900 frame.protect_var (warning_state); |
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1901 |
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1902 frame.protect_var (discard_error_messages); |
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1903 frame.protect_var (discard_warning_messages); |
4452 | 1904 |
3815 | 1905 discard_error_messages = true; |
4452 | 1906 discard_warning_messages = true; |
3292 | 1907 |
1908 tree_expression *op = e->operand (); | |
1909 | |
1910 if (op->is_constant ()) | |
1911 { | |
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1912 octave_value tmp = e->rvalue1 (); |
3292 | 1913 |
3489 | 1914 if (! (error_state || warning_state)) |
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1915 { |
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1916 tree_constant *tc_retval |
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1917 = new tree_constant (tmp, op->line (), op->column ()); |
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1918 |
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1919 std::ostringstream buf; |
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1920 |
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1921 tree_print_code tpc (buf); |
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1922 |
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1923 e->accept (tpc); |
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1924 |
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1925 tc_retval->stash_original_text (buf.str ()); |
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1926 |
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1927 delete e; |
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1928 |
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1929 retval = tc_retval; |
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1930 } |
3292 | 1931 } |
1932 | |
2533 | 1933 return retval; |
1934 } | |
1935 | |
1623 | 1936 // Finish building a range. |
1937 | |
1938 static tree_expression * | |
1939 finish_colon_expression (tree_colon_expression *e) | |
1940 { | |
3110 | 1941 tree_expression *retval = e; |
1942 | |
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1943 unwind_protect frame; |
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1944 |
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1945 frame.protect_var (error_state); |
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1946 frame.protect_var (warning_state); |
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1947 |
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1948 frame.protect_var (discard_error_messages); |
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1949 frame.protect_var (discard_warning_messages); |
4452 | 1950 |
3815 | 1951 discard_error_messages = true; |
4452 | 1952 discard_warning_messages = true; |
1623 | 1953 |
2533 | 1954 tree_expression *base = e->base (); |
1955 tree_expression *limit = e->limit (); | |
1956 tree_expression *incr = e->increment (); | |
1957 | |
2970 | 1958 if (base) |
1623 | 1959 { |
2970 | 1960 if (limit) |
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1961 { |
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1962 if (base->is_constant () && limit->is_constant () |
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1963 && (! incr || (incr && incr->is_constant ()))) |
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1964 { |
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1965 octave_value tmp = e->rvalue1 (); |
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1966 |
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1967 if (! (error_state || warning_state)) |
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1968 { |
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1969 tree_constant *tc_retval |
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1970 = new tree_constant (tmp, base->line (), base->column ()); |
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1971 |
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1972 std::ostringstream buf; |
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1973 |
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1974 tree_print_code tpc (buf); |
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1975 |
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1976 e->accept (tpc); |
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1977 |
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1978 tc_retval->stash_original_text (buf.str ()); |
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1979 |
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1980 delete e; |
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1981 |
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1982 retval = tc_retval; |
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1983 } |
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1984 } |
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1985 } |
2533 | 1986 else |
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1987 { |
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1988 e->preserve_base (); |
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1989 delete e; |
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1990 |
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1991 // FIXME -- need to attempt constant folding here |
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1992 // too (we need a generic way to do that). |
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1993 retval = base; |
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1994 } |
1623 | 1995 } |
1996 | |
1997 return retval; | |
1998 } | |
1999 | |
1607 | 2000 // Make a constant. |
2001 | |
2375 | 2002 static tree_constant * |
1607 | 2003 make_constant (int op, token *tok_val) |
2004 { | |
2005 int l = tok_val->line (); | |
2006 int c = tok_val->column (); | |
2007 | |
3216 | 2008 tree_constant *retval = 0; |
1607 | 2009 |
2010 switch (op) | |
2011 { | |
2012 case NUM: | |
2533 | 2013 { |
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2014 octave_value tmp (tok_val->number ()); |
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2015 retval = new tree_constant (tmp, l, c); |
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2016 retval->stash_original_text (tok_val->text_rep ()); |
2533 | 2017 } |
1607 | 2018 break; |
2019 | |
2020 case IMAG_NUM: | |
2021 { | |
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2022 octave_value tmp (Complex (0.0, tok_val->number ())); |
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2023 retval = new tree_constant (tmp, l, c); |
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2024 retval->stash_original_text (tok_val->text_rep ()); |
1607 | 2025 } |
2026 break; | |
2027 | |
5279 | 2028 case DQ_STRING: |
2029 case SQ_STRING: | |
2883 | 2030 { |
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2031 std::string txt = tok_val->text (); |
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2032 |
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2033 char delim = op == DQ_STRING ? '"' : '\''; |
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2034 octave_value tmp (txt, delim); |
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2035 |
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2036 if (txt.empty ()) |
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2037 { |
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2038 if (op == DQ_STRING) |
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2039 tmp = octave_null_str::instance; |
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2040 else |
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2041 tmp = octave_null_sq_str::instance; |
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2042 } |
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2043 |
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2044 retval = new tree_constant (tmp, l, c); |
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2045 |
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2046 if (op == DQ_STRING) |
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2047 txt = undo_string_escapes (txt); |
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2048 |
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2049 // FIXME -- maybe this should also be handled by |
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2050 // tok_val->text_rep () for character strings? |
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2051 retval->stash_original_text (delim + txt + delim); |
2883 | 2052 } |
1607 | 2053 break; |
2054 | |
2055 default: | |
2056 panic_impossible (); | |
2057 break; | |
2058 } | |
2059 | |
2060 return retval; | |
2061 } | |
2062 | |
4342 | 2063 // Make a function handle. |
2064 | |
2065 static tree_fcn_handle * | |
2066 make_fcn_handle (token *tok_val) | |
2067 { | |
2068 int l = tok_val->line (); | |
2069 int c = tok_val->column (); | |
2070 | |
2071 tree_fcn_handle *retval = new tree_fcn_handle (tok_val->text (), l, c); | |
2072 | |
2073 return retval; | |
2074 } | |
2075 | |
4935 | 2076 // Make an anonymous function handle. |
2077 | |
5861 | 2078 static tree_anon_fcn_handle * |
4935 | 2079 make_anon_fcn_handle (tree_parameter_list *param_list, tree_statement *stmt) |
2080 { | |
5775 | 2081 // FIXME -- need to get these from the location of the @ symbol. |
4935 | 2082 |
2083 int l = -1; | |
2084 int c = -1; | |
2085 | |
2086 tree_parameter_list *ret_list = 0; | |
2087 | |
7336 | 2088 symbol_table::scope_id fcn_scope = symbol_table::current_scope (); |
5861 | 2089 |
2090 if (symtab_context.empty ()) | |
2091 panic_impossible (); | |
2092 | |
7336 | 2093 symbol_table::set_scope (symtab_context.top ()); |
5861 | 2094 |
2095 symtab_context.pop (); | |
2096 | |
7351 | 2097 stmt->set_print_flag (false); |
4935 | 2098 |
2099 tree_statement_list *body = new tree_statement_list (stmt); | |
2100 | |
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2101 body->mark_as_anon_function_body (); |
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2102 |
5861 | 2103 tree_anon_fcn_handle *retval |
7336 | 2104 = new tree_anon_fcn_handle (param_list, ret_list, body, fcn_scope, l, c); |
4935 | 2105 |
2106 return retval; | |
2107 } | |
2108 | |
5161 | 2109 static void |
2110 maybe_warn_associativity_change (tree_expression *op) | |
2111 { | |
5781 | 2112 if (op->paren_count () == 0 && op->is_binary_expression ()) |
5161 | 2113 { |
2114 tree_binary_expression *e | |
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2115 = dynamic_cast<tree_binary_expression *> (op); |
5161 | 2116 |
2117 octave_value::binary_op op_type = e->op_type (); | |
2118 | |
2119 if (op_type == octave_value::op_pow | |
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2120 || op_type == octave_value::op_el_pow) |
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2121 { |
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2122 std::string op_str = octave_value::binary_op_as_string (op_type); |
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2123 |
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2124 if (curr_fcn_file_full_name.empty ()) |
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2125 warning_with_id |
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2126 ("Octave:associativity-change", |
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2127 "meaning may have changed due to change in associativity for %s operator", |
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2128 op_str.c_str ()); |
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2129 else |
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2130 warning_with_id |
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2131 ("Octave:associativity-change", |
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2132 "meaning may have changed due to change in associativity for %s operator near line %d, column %d in file `%s'", |
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2133 op_str.c_str (), op->line (), op->column (), |
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2134 curr_fcn_file_full_name.c_str ()); |
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2135 } |
5161 | 2136 } |
2137 } | |
2138 | |
666 | 2139 // Build a binary expression. |
2140 | |
578 | 2141 static tree_expression * |
2142 make_binary_op (int op, tree_expression *op1, token *tok_val, | |
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2143 tree_expression *op2) |
578 | 2144 { |
2883 | 2145 octave_value::binary_op t = octave_value::unknown_binary_op; |
1623 | 2146 |
578 | 2147 switch (op) |
2148 { | |
2149 case POW: | |
3525 | 2150 t = octave_value::op_pow; |
5161 | 2151 maybe_warn_associativity_change (op1); |
578 | 2152 break; |
777 | 2153 |
578 | 2154 case EPOW: |
3525 | 2155 t = octave_value::op_el_pow; |
5161 | 2156 maybe_warn_associativity_change (op1); |
578 | 2157 break; |
777 | 2158 |
578 | 2159 case '+': |
3525 | 2160 t = octave_value::op_add; |
578 | 2161 break; |
777 | 2162 |
578 | 2163 case '-': |
3525 | 2164 t = octave_value::op_sub; |
578 | 2165 break; |
777 | 2166 |
578 | 2167 case '*': |
3525 | 2168 t = octave_value::op_mul; |
578 | 2169 break; |
777 | 2170 |
578 | 2171 case '/': |
3525 | 2172 t = octave_value::op_div; |
578 | 2173 break; |
777 | 2174 |
578 | 2175 case EMUL: |
3525 | 2176 t = octave_value::op_el_mul; |
578 | 2177 break; |
777 | 2178 |
578 | 2179 case EDIV: |
3525 | 2180 t = octave_value::op_el_div; |
578 | 2181 break; |
777 | 2182 |
578 | 2183 case LEFTDIV: |
3525 | 2184 t = octave_value::op_ldiv; |
578 | 2185 break; |
777 | 2186 |
578 | 2187 case ELEFTDIV: |
3525 | 2188 t = octave_value::op_el_ldiv; |
578 | 2189 break; |
777 | 2190 |
2899 | 2191 case LSHIFT: |
3525 | 2192 t = octave_value::op_lshift; |
2899 | 2193 break; |
2194 | |
2195 case RSHIFT: | |
3525 | 2196 t = octave_value::op_rshift; |
2899 | 2197 break; |
2198 | |
578 | 2199 case EXPR_LT: |
3525 | 2200 t = octave_value::op_lt; |
578 | 2201 break; |
777 | 2202 |
578 | 2203 case EXPR_LE: |
3525 | 2204 t = octave_value::op_le; |
578 | 2205 break; |
777 | 2206 |
578 | 2207 case EXPR_EQ: |
3525 | 2208 t = octave_value::op_eq; |
578 | 2209 break; |
777 | 2210 |
578 | 2211 case EXPR_GE: |
3525 | 2212 t = octave_value::op_ge; |
578 | 2213 break; |
777 | 2214 |
578 | 2215 case EXPR_GT: |
3525 | 2216 t = octave_value::op_gt; |
578 | 2217 break; |
777 | 2218 |
578 | 2219 case EXPR_NE: |
3525 | 2220 t = octave_value::op_ne; |
578 | 2221 break; |
777 | 2222 |
578 | 2223 case EXPR_AND: |
3525 | 2224 t = octave_value::op_el_and; |
578 | 2225 break; |
777 | 2226 |
578 | 2227 case EXPR_OR: |
3525 | 2228 t = octave_value::op_el_or; |
5781 | 2229 if (op2->paren_count () == 0 && op2->is_binary_expression ()) |
4023 | 2230 { |
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2231 tree_binary_expression *e |
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2232 = dynamic_cast<tree_binary_expression *> (op2); |
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2233 |
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2234 if (e->op_type () == octave_value::op_el_and) |
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2235 { |
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2236 if (curr_fcn_file_full_name.empty ()) |
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2237 warning_with_id |
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2238 ("Octave:precedence-change", |
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2239 "meaning may have changed due to change in precedence for & and | operators"); |
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2240 else |
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2241 warning_with_id |
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2242 ("Octave:precedence-change", |
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2243 "meaning may have changed due to change in precedence for & and | operators near line %d, column %d in file `%s'", |
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2244 op2->line (), op2->column (), |
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2245 curr_fcn_file_full_name.c_str ()); |
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2246 } |
4023 | 2247 } |
578 | 2248 break; |
777 | 2249 |
578 | 2250 default: |
2251 panic_impossible (); | |
2252 break; | |
2253 } | |
2254 | |
2255 int l = tok_val->line (); | |
2256 int c = tok_val->column (); | |
2257 | |
2533 | 2258 tree_binary_expression *e |
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2259 = maybe_compound_binary_expression (op1, op2, l, c, t); |
1623 | 2260 |
2533 | 2261 return fold (e); |
578 | 2262 } |
2263 | |
2375 | 2264 // Build a boolean expression. |
666 | 2265 |
578 | 2266 static tree_expression * |
2375 | 2267 make_boolean_op (int op, tree_expression *op1, token *tok_val, |
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2268 tree_expression *op2) |
578 | 2269 { |
2375 | 2270 tree_boolean_expression::type t; |
2271 | |
578 | 2272 switch (op) |
2273 { | |
2375 | 2274 case EXPR_AND_AND: |
2805 | 2275 t = tree_boolean_expression::bool_and; |
578 | 2276 break; |
777 | 2277 |
2375 | 2278 case EXPR_OR_OR: |
2805 | 2279 t = tree_boolean_expression::bool_or; |
5781 | 2280 if (op2->paren_count () == 0 && op2->is_boolean_expression ()) |
4023 | 2281 { |
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2282 tree_boolean_expression *e |
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2283 = dynamic_cast<tree_boolean_expression *> (op2); |
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2284 |
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2285 if (e->op_type () == tree_boolean_expression::bool_and) |
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2286 warning_with_id |
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2287 ("Octave:precedence-change", |
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2288 "meaning may have changed due to change in precedence for && and || operators"); |
4023 | 2289 } |
578 | 2290 break; |
777 | 2291 |
578 | 2292 default: |
2293 panic_impossible (); | |
2294 break; | |
2295 } | |
2296 | |
2297 int l = tok_val->line (); | |
2298 int c = tok_val->column (); | |
2299 | |
2533 | 2300 tree_boolean_expression *e |
2301 = new tree_boolean_expression (op1, op2, l, c, t); | |
2375 | 2302 |
2533 | 2303 return fold (e); |
578 | 2304 } |
2305 | |
2375 | 2306 // Build a prefix expression. |
666 | 2307 |
578 | 2308 static tree_expression * |
2960 | 2309 make_prefix_op (int op, tree_expression *op1, token *tok_val) |
578 | 2310 { |
3203 | 2311 octave_value::unary_op t = octave_value::unknown_unary_op; |
2375 | 2312 |
578 | 2313 switch (op) |
2314 { | |
2960 | 2315 case EXPR_NOT: |
3525 | 2316 t = octave_value::op_not; |
2960 | 2317 break; |
2318 | |
4965 | 2319 case '+': |
2320 t = octave_value::op_uplus; | |
2321 break; | |
2322 | |
2960 | 2323 case '-': |
3525 | 2324 t = octave_value::op_uminus; |
2960 | 2325 break; |
2326 | |
578 | 2327 case PLUS_PLUS: |
3525 | 2328 t = octave_value::op_incr; |
578 | 2329 break; |
777 | 2330 |
578 | 2331 case MINUS_MINUS: |
3525 | 2332 t = octave_value::op_decr; |
578 | 2333 break; |
777 | 2334 |
578 | 2335 default: |
2336 panic_impossible (); | |
2337 break; | |
2338 } | |
2339 | |
2340 int l = tok_val->line (); | |
2341 int c = tok_val->column (); | |
2342 | |
3292 | 2343 tree_prefix_expression *e |
2344 = new tree_prefix_expression (op1, l, c, t); | |
2345 | |
2346 return fold (e); | |
578 | 2347 } |
2348 | |
2375 | 2349 // Build a postfix expression. |
666 | 2350 |
578 | 2351 static tree_expression * |
2960 | 2352 make_postfix_op (int op, tree_expression *op1, token *tok_val) |
578 | 2353 { |
3203 | 2354 octave_value::unary_op t = octave_value::unknown_unary_op; |
1623 | 2355 |
578 | 2356 switch (op) |
2357 { | |
2960 | 2358 case QUOTE: |
3525 | 2359 t = octave_value::op_hermitian; |
2960 | 2360 break; |
2361 | |
2362 case TRANSPOSE: | |
3525 | 2363 t = octave_value::op_transpose; |
2960 | 2364 break; |
2365 | |
2375 | 2366 case PLUS_PLUS: |
3525 | 2367 t = octave_value::op_incr; |
578 | 2368 break; |
777 | 2369 |
2375 | 2370 case MINUS_MINUS: |
3525 | 2371 t = octave_value::op_decr; |
578 | 2372 break; |
777 | 2373 |
578 | 2374 default: |
2375 panic_impossible (); | |
2376 break; | |
2377 } | |
2378 | |
2379 int l = tok_val->line (); | |
2380 int c = tok_val->column (); | |
2381 | |
3292 | 2382 tree_postfix_expression *e |
2383 = new tree_postfix_expression (op1, l, c, t); | |
2384 | |
2385 return fold (e); | |
1623 | 2386 } |
2387 | |
2388 // Build an unwind-protect command. | |
2389 | |
2390 static tree_command * | |
2391 make_unwind_command (token *unwind_tok, tree_statement_list *body, | |
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2392 tree_statement_list *cleanup, token *end_tok, |
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2393 octave_comment_list *lc, octave_comment_list *mc) |
1623 | 2394 { |
2395 tree_command *retval = 0; | |
2396 | |
2857 | 2397 if (end_token_ok (end_tok, token::unwind_protect_end)) |
1623 | 2398 { |
3665 | 2399 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2400 | |
1623 | 2401 int l = unwind_tok->line (); |
2402 int c = unwind_tok->column (); | |
2403 | |
3665 | 2404 retval = new tree_unwind_protect_command (body, cleanup, |
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2405 lc, mc, tc, l, c); |
1623 | 2406 } |
2407 | |
2408 return retval; | |
2409 } | |
2410 | |
2411 // Build a try-catch command. | |
2412 | |
2413 static tree_command * | |
2414 make_try_command (token *try_tok, tree_statement_list *body, | |
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2415 tree_statement_list *cleanup, token *end_tok, |
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2416 octave_comment_list *lc, octave_comment_list *mc) |
1623 | 2417 { |
2418 tree_command *retval = 0; | |
2419 | |
2857 | 2420 if (end_token_ok (end_tok, token::try_catch_end)) |
1623 | 2421 { |
3665 | 2422 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2423 | |
1623 | 2424 int l = try_tok->line (); |
2425 int c = try_tok->column (); | |
2426 | |
3665 | 2427 retval = new tree_try_catch_command (body, cleanup, |
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2428 lc, mc, tc, l, c); |
1623 | 2429 } |
2430 | |
2431 return retval; | |
2432 } | |
2433 | |
2434 // Build a while command. | |
2435 | |
2436 static tree_command * | |
2437 make_while_command (token *while_tok, tree_expression *expr, | |
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2438 tree_statement_list *body, token *end_tok, |
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2439 octave_comment_list *lc) |
1623 | 2440 { |
2441 tree_command *retval = 0; | |
2442 | |
2443 maybe_warn_assign_as_truth_value (expr); | |
2444 | |
2857 | 2445 if (end_token_ok (end_tok, token::while_end)) |
1623 | 2446 { |
3665 | 2447 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2448 | |
1826 | 2449 lexer_flags.looping--; |
1623 | 2450 |
2451 int l = while_tok->line (); | |
2452 int c = while_tok->column (); | |
2453 | |
3665 | 2454 retval = new tree_while_command (expr, body, lc, tc, l, c); |
1623 | 2455 } |
2456 | |
2457 return retval; | |
2458 } | |
2459 | |
3484 | 2460 // Build a do-until command. |
2461 | |
2462 static tree_command * | |
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2463 make_do_until_command (token *until_tok, tree_statement_list *body, |
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2464 tree_expression *expr, octave_comment_list *lc) |
3484 | 2465 { |
2466 tree_command *retval = 0; | |
2467 | |
2468 maybe_warn_assign_as_truth_value (expr); | |
2469 | |
3665 | 2470 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2471 | |
3484 | 2472 lexer_flags.looping--; |
2473 | |
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2474 int l = until_tok->line (); |
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2475 int c = until_tok->column (); |
3484 | 2476 |
3665 | 2477 retval = new tree_do_until_command (expr, body, lc, tc, l, c); |
3484 | 2478 |
2479 return retval; | |
2480 } | |
2481 | |
1623 | 2482 // Build a for command. |
2483 | |
2484 static tree_command * | |
2970 | 2485 make_for_command (token *for_tok, tree_argument_list *lhs, |
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2486 tree_expression *expr, tree_statement_list *body, |
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2487 token *end_tok, octave_comment_list *lc) |
1623 | 2488 { |
2489 tree_command *retval = 0; | |
2490 | |
2857 | 2491 if (end_token_ok (end_tok, token::for_end)) |
1623 | 2492 { |
3665 | 2493 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2494 | |
1826 | 2495 lexer_flags.looping--; |
1623 | 2496 |
2497 int l = for_tok->line (); | |
2498 int c = for_tok->column (); | |
2499 | |
2970 | 2500 if (lhs->length () == 1) |
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2501 { |
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2502 tree_expression *tmp = lhs->remove_front (); |
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2503 |
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2504 retval = new tree_simple_for_command (tmp, expr, body, |
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2505 lc, tc, l, c); |
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2506 |
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2507 delete lhs; |
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2508 } |
2970 | 2509 else |
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2510 retval = new tree_complex_for_command (lhs, expr, body, |
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2511 lc, tc, l, c); |
1623 | 2512 } |
2513 | |
2514 return retval; | |
2515 } | |
2516 | |
4207 | 2517 // Build a break command. |
2518 | |
2519 static tree_command * | |
2520 make_break_command (token *break_tok) | |
1623 | 2521 { |
4207 | 2522 tree_command *retval = 0; |
1623 | 2523 |
2620 | 2524 int l = break_tok->line (); |
2525 int c = break_tok->column (); | |
2526 | |
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2527 retval = new tree_break_command (l, c); |
1623 | 2528 |
2529 return retval; | |
2530 } | |
2531 | |
4207 | 2532 // Build a continue command. |
2533 | |
2534 static tree_command * | |
2535 make_continue_command (token *continue_tok) | |
1623 | 2536 { |
4207 | 2537 tree_command *retval = 0; |
1623 | 2538 |
2620 | 2539 int l = continue_tok->line (); |
2540 int c = continue_tok->column (); | |
2541 | |
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2542 retval = new tree_continue_command (l, c); |
1623 | 2543 |
2544 return retval; | |
2545 } | |
2546 | |
4207 | 2547 // Build a return command. |
2548 | |
2549 static tree_command * | |
2550 make_return_command (token *return_tok) | |
1623 | 2551 { |
4207 | 2552 tree_command *retval = 0; |
1623 | 2553 |
2620 | 2554 int l = return_tok->line (); |
2555 int c = return_tok->column (); | |
2556 | |
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|
2557 retval = new tree_return_command (l, c); |
1623 | 2558 |
2559 return retval; | |
2560 } | |
2561 | |
2562 // Start an if command. | |
2563 | |
2564 static tree_if_command_list * | |
2565 start_if_command (tree_expression *expr, tree_statement_list *list) | |
2566 { | |
2567 maybe_warn_assign_as_truth_value (expr); | |
2568 | |
2569 tree_if_clause *t = new tree_if_clause (expr, list); | |
2570 | |
2571 return new tree_if_command_list (t); | |
2572 } | |
2573 | |
2574 // Finish an if command. | |
2575 | |
2576 static tree_if_command * | |
2577 finish_if_command (token *if_tok, tree_if_command_list *list, | |
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2578 token *end_tok, octave_comment_list *lc) |
1623 | 2579 { |
2580 tree_if_command *retval = 0; | |
2581 | |
2857 | 2582 if (end_token_ok (end_tok, token::if_end)) |
1623 | 2583 { |
3665 | 2584 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2585 | |
1623 | 2586 int l = if_tok->line (); |
2587 int c = if_tok->column (); | |
2588 | |
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2589 if (list && ! list->empty ()) |
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2590 { |
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2591 tree_if_clause *elt = list->front (); |
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2592 |
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2593 if (elt) |
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2594 { |
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2595 elt->line (l); |
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2596 elt->column (c); |
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2597 } |
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2598 } |
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2599 |
3665 | 2600 retval = new tree_if_command (list, lc, tc, l, c); |
1623 | 2601 } |
2602 | |
2603 return retval; | |
2604 } | |
2605 | |
2606 // Build an elseif clause. | |
2607 | |
2608 static tree_if_clause * | |
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changeset
|
2609 make_elseif_clause (token *elseif_tok, tree_expression *expr, |
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|
2610 tree_statement_list *list, octave_comment_list *lc) |
1623 | 2611 { |
2612 maybe_warn_assign_as_truth_value (expr); | |
2613 | |
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New evaluator and debugger derived from tree-walker class
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diff
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|
2614 int l = elseif_tok->line (); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
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|
2615 int c = elseif_tok->column (); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
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|
2616 |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2617 return new tree_if_clause (expr, list, lc, l, c); |
1623 | 2618 } |
2619 | |
2764 | 2620 // Finish a switch command. |
2621 | |
2622 static tree_switch_command * | |
2623 finish_switch_command (token *switch_tok, tree_expression *expr, | |
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|
2624 tree_switch_case_list *list, token *end_tok, |
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|
2625 octave_comment_list *lc) |
2764 | 2626 { |
2627 tree_switch_command *retval = 0; | |
2628 | |
2857 | 2629 if (end_token_ok (end_tok, token::switch_end)) |
2764 | 2630 { |
3665 | 2631 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
2632 | |
2764 | 2633 int l = switch_tok->line (); |
2634 int c = switch_tok->column (); | |
2635 | |
8842
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line/column info for switch and if statements
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diff
changeset
|
2636 if (list && ! list->empty ()) |
10315
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|
2637 { |
57a59eae83cc
untabify src C++ source files
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|
2638 tree_switch_case *elt = list->front (); |
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untabify src C++ source files
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|
2639 |
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|
2640 if (elt) |
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|
2641 { |
57a59eae83cc
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|
2642 elt->line (l); |
57a59eae83cc
untabify src C++ source files
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|
2643 elt->column (c); |
57a59eae83cc
untabify src C++ source files
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|
2644 } |
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|
2645 } |
8842
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|
2646 |
3665 | 2647 retval = new tree_switch_command (expr, list, lc, tc, l, c); |
2764 | 2648 } |
2649 | |
2650 return retval; | |
2651 } | |
2652 | |
2653 // Build a switch case. | |
2654 | |
2655 static tree_switch_case * | |
8658
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New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
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changeset
|
2656 make_switch_case (token *case_tok, tree_expression *expr, |
10315
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untabify src C++ source files
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|
2657 tree_statement_list *list, octave_comment_list *lc) |
2764 | 2658 { |
2659 maybe_warn_variable_switch_label (expr); | |
2660 | |
8658
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New evaluator and debugger derived from tree-walker class
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diff
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|
2661 int l = case_tok->line (); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2662 int c = case_tok->column (); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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|
2663 |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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|
2664 return new tree_switch_case (expr, list, lc, l, c); |
2764 | 2665 } |
2666 | |
1623 | 2667 // Build an assignment to a variable. |
2668 | |
2669 static tree_expression * | |
2970 | 2670 make_assign_op (int op, tree_argument_list *lhs, token *eq_tok, |
10315
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untabify src C++ source files
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|
2671 tree_expression *rhs) |
1623 | 2672 { |
2970 | 2673 tree_expression *retval = 0; |
2674 | |
2883 | 2675 octave_value::assign_op t = octave_value::unknown_assign_op; |
2676 | |
2677 switch (op) | |
2678 { | |
2679 case '=': | |
3525 | 2680 t = octave_value::op_asn_eq; |
2883 | 2681 break; |
2682 | |
2683 case ADD_EQ: | |
3525 | 2684 t = octave_value::op_add_eq; |
2883 | 2685 break; |
2686 | |
2687 case SUB_EQ: | |
3525 | 2688 t = octave_value::op_sub_eq; |
2883 | 2689 break; |
2690 | |
2691 case MUL_EQ: | |
3525 | 2692 t = octave_value::op_mul_eq; |
2883 | 2693 break; |
2694 | |
2695 case DIV_EQ: | |
3525 | 2696 t = octave_value::op_div_eq; |
2883 | 2697 break; |
2698 | |
3204 | 2699 case LEFTDIV_EQ: |
3525 | 2700 t = octave_value::op_ldiv_eq; |
3204 | 2701 break; |
2702 | |
4018 | 2703 case POW_EQ: |
2704 t = octave_value::op_pow_eq; | |
2705 break; | |
2706 | |
2899 | 2707 case LSHIFT_EQ: |
3525 | 2708 t = octave_value::op_lshift_eq; |
2899 | 2709 break; |
2710 | |
2711 case RSHIFT_EQ: | |
3525 | 2712 t = octave_value::op_rshift_eq; |
2899 | 2713 break; |
2714 | |
2883 | 2715 case EMUL_EQ: |
3525 | 2716 t = octave_value::op_el_mul_eq; |
2883 | 2717 break; |
2718 | |
2719 case EDIV_EQ: | |
3525 | 2720 t = octave_value::op_el_div_eq; |
2883 | 2721 break; |
2722 | |
3204 | 2723 case ELEFTDIV_EQ: |
3525 | 2724 t = octave_value::op_el_ldiv_eq; |
3204 | 2725 break; |
2726 | |
4018 | 2727 case EPOW_EQ: |
2728 t = octave_value::op_el_pow_eq; | |
2729 break; | |
2730 | |
2883 | 2731 case AND_EQ: |
3525 | 2732 t = octave_value::op_el_and_eq; |
2883 | 2733 break; |
2734 | |
2735 case OR_EQ: | |
3525 | 2736 t = octave_value::op_el_or_eq; |
2883 | 2737 break; |
2738 | |
2739 default: | |
2740 panic_impossible (); | |
2741 break; | |
2742 } | |
2743 | |
1623 | 2744 int l = eq_tok->line (); |
2745 int c = eq_tok->column (); | |
2746 | |
5841 | 2747 if (lhs->is_simple_assign_lhs ()) |
666 | 2748 { |
2970 | 2749 tree_expression *tmp = lhs->remove_front (); |
2750 | |
2751 retval = new tree_simple_assignment (tmp, rhs, false, l, c, t); | |
2752 | |
2753 delete lhs; | |
666 | 2754 } |
10230
0a5a769b8fc0
disallow computed multiple assignment
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
2755 else if (t == octave_value::op_asn_eq) |
0a5a769b8fc0
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Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
2756 return new tree_multi_assignment (lhs, rhs, false, l, c); |
666 | 2757 else |
10230
0a5a769b8fc0
disallow computed multiple assignment
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
2758 yyerror ("computed multiple assignment not allowed"); |
666 | 2759 |
2760 return retval; | |
2761 } | |
751 | 2762 |
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Parse nested functions more accurately.
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diff
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|
2763 // Define a script. |
7715
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parse scripts completely before executing
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|
2764 |
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|
2765 static void |
8658
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New evaluator and debugger derived from tree-walker class
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changeset
|
2766 make_script (tree_statement_list *cmds, tree_statement *end_script) |
7715
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|
2767 { |
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diff
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|
2768 std::string doc_string; |
5b4d278ec828
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changeset
|
2769 |
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|
2770 if (! help_buf.empty ()) |
5b4d278ec828
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changeset
|
2771 { |
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|
2772 doc_string = help_buf.top (); |
5b4d278ec828
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diff
changeset
|
2773 help_buf.pop (); |
5b4d278ec828
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2774 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2775 |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2776 if (! cmds) |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2777 cmds = new tree_statement_list (); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2778 |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2779 cmds->append (end_script); |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2780 |
7715
5b4d278ec828
parse scripts completely before executing
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diff
changeset
|
2781 octave_user_script *script |
5b4d278ec828
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parents:
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diff
changeset
|
2782 = new octave_user_script (curr_fcn_file_full_name, curr_fcn_file_name, |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2783 cmds, doc_string); |
7715
5b4d278ec828
parse scripts completely before executing
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diff
changeset
|
2784 |
5b4d278ec828
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diff
changeset
|
2785 octave_time now; |
5b4d278ec828
parse scripts completely before executing
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parents:
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diff
changeset
|
2786 |
5b4d278ec828
parse scripts completely before executing
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parents:
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diff
changeset
|
2787 script->stash_fcn_file_time (now); |
5b4d278ec828
parse scripts completely before executing
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parents:
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diff
changeset
|
2788 |
9474
25ed2d6aacf6
Parse nested functions more accurately.
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diff
changeset
|
2789 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
|
2790 |
9009
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2791 // Unmark any symbols that may have been tagged as local variables |
da58ec8f62e8
tag bug don't define forced variables
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parents:
8974
diff
changeset
|
2792 // while parsing (for example, by force_local_variable in lex.l). |
da58ec8f62e8
tag bug don't define forced variables
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parents:
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diff
changeset
|
2793 |
da58ec8f62e8
tag bug don't define forced variables
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8974
diff
changeset
|
2794 symbol_table::unmark_forced_variables (); |
7715
5b4d278ec828
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diff
changeset
|
2795 } |
5b4d278ec828
parse scripts completely before executing
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diff
changeset
|
2796 |
1623 | 2797 // Begin defining a function. |
2798 | |
2891 | 2799 static octave_user_function * |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2800 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
|
2801 tree_statement *end_fcn_stmt) |
1623 | 2802 { |
2891 | 2803 // We'll fill in the return list later. |
2804 | |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2805 if (! body) |
73c4516fae10
New evaluator and debugger derived from tree-walker class
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diff
changeset
|
2806 body = new tree_statement_list (); |
73c4516fae10
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diff
changeset
|
2807 |
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diff
changeset
|
2808 body->append (end_fcn_stmt); |
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diff
changeset
|
2809 |
2891 | 2810 octave_user_function *fcn |
7336 | 2811 = new octave_user_function (symbol_table::current_scope (), |
10315
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untabify src C++ source files
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changeset
|
2812 param_list, 0, body); |
1623 | 2813 |
3665 | 2814 if (fcn) |
2815 { | |
2816 octave_comment_list *tc = octave_comment_buffer::get_comment (); | |
2817 | |
2818 fcn->stash_trailing_comment (tc); | |
2819 } | |
2820 | |
1623 | 2821 return fcn; |
2822 } | |
2823 | |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
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changeset
|
2824 static tree_statement * |
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diff
changeset
|
2825 make_end (const std::string& type, int l, int c) |
73c4516fae10
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changeset
|
2826 { |
73c4516fae10
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diff
changeset
|
2827 return make_statement (new tree_no_op_command (type, l, c)); |
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diff
changeset
|
2828 } |
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changeset
|
2829 |
1623 | 2830 // Do most of the work for defining a function. |
2831 | |
2891 | 2832 static octave_user_function * |
4872 | 2833 frob_function (const std::string& fname, octave_user_function *fcn) |
1623 | 2834 { |
4872 | 2835 std::string id_name = fname; |
1623 | 2836 |
2837 // If input is coming from a file, issue a warning if the name of | |
2838 // the file does not match the name of the function stated in the | |
2839 // file. Matlab doesn't provide a diagnostic (it ignores the stated | |
2840 // name). | |
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25ed2d6aacf6
Parse nested functions more accurately.
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diff
changeset
|
2841 if (! autoloading && reading_fcn_file |
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changeset
|
2842 && (current_function_depth == 1 |
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|
2843 && ! (parsing_subfunctions || lexer_flags.parsing_class_method))) |
9474
25ed2d6aacf6
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changeset
|
2844 { |
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diff
changeset
|
2845 // FIXME -- should curr_fcn_file_name already be |
25ed2d6aacf6
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diff
changeset
|
2846 // preprocessed when we get here? It seems to only be a |
25ed2d6aacf6
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diff
changeset
|
2847 // problem with relative file names. |
25ed2d6aacf6
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changeset
|
2848 |
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diff
changeset
|
2849 std::string nm = curr_fcn_file_name; |
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changeset
|
2850 |
25ed2d6aacf6
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diff
changeset
|
2851 size_t pos = nm.find_last_of (file_ops::dir_sep_chars ()); |
25ed2d6aacf6
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changeset
|
2852 |
25ed2d6aacf6
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diff
changeset
|
2853 if (pos != std::string::npos) |
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diff
changeset
|
2854 nm = curr_fcn_file_name.substr (pos+1); |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2855 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2856 if (nm != id_name) |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2857 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2858 warning_with_id |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2859 ("Octave:function-name-clash", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2860 "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
|
2861 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
|
2862 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2863 id_name = nm; |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2864 } |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2865 } |
1623 | 2866 |
9476 | 2867 if (reading_fcn_file || reading_classdef_file || autoloading) |
1623 | 2868 { |
3712 | 2869 octave_time now; |
3162 | 2870 |
4343 | 2871 fcn->stash_fcn_file_name (curr_fcn_file_full_name); |
3162 | 2872 fcn->stash_fcn_file_time (now); |
1623 | 2873 fcn->mark_as_system_fcn_file (); |
3162 | 2874 |
6323 | 2875 if (fcn_file_from_relative_lookup) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2876 fcn->mark_relative (); |
6323 | 2877 |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2878 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
|
2879 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2880 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
|
2881 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
|
2882 } |
6323 | 2883 |
7336 | 2884 if (lexer_flags.parsing_class_method) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2885 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2886 if (current_class_name == id_name) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2887 fcn->mark_as_class_constructor (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2888 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2889 fcn->mark_as_class_method (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2890 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2891 fcn->stash_dispatch_class (current_class_name); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2892 } |
7336 | 2893 |
5781 | 2894 std::string nm = fcn->fcn_file_name (); |
2895 | |
2896 file_stat fs (nm); | |
2897 | |
2898 if (fs && fs.is_newer (now)) | |
2899 warning_with_id ("Octave:future-time-stamp", | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2900 "time stamp for `%s' is in the future", nm.c_str ()); |
1623 | 2901 } |
2902 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
|
2903 && reading_script_file |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2904 && curr_fcn_file_name == id_name) |
1623 | 2905 { |
2906 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
|
2907 id_name.c_str (), curr_fcn_file_full_name.c_str ()); |
1623 | 2908 } |
2909 | |
4872 | 2910 fcn->stash_function_name (id_name); |
2911 | |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2912 if (! help_buf.empty () && current_function_depth == 1 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2913 && ! parsing_subfunctions) |
7336 | 2914 { |
2915 fcn->document (help_buf.top ()); | |
2916 | |
2917 help_buf.pop (); | |
2918 } | |
2919 | |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2920 if (reading_fcn_file && current_function_depth == 1 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2921 && ! parsing_subfunctions) |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2922 primary_fcn_ptr = fcn; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2923 |
1623 | 2924 return fcn; |
2925 } | |
2926 | |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2927 static tree_function_def * |
3665 | 2928 finish_function (tree_parameter_list *ret_list, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2929 octave_user_function *fcn, octave_comment_list *lc) |
1623 | 2930 { |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2931 tree_function_def *retval = 0; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2932 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2933 if (ret_list) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2934 ret_list->mark_as_formal_parameters (); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2935 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2936 if (fcn) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2937 { |
7761
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2938 std::string nm = fcn->name (); |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2939 std::string file = fcn->fcn_file_name (); |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2940 |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2941 std::string tmp = nm; |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2942 if (! file.empty ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2943 tmp += ": " + file; |
7761
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2944 |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2945 symbol_table::cache_name (fcn->scope (), tmp); |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents:
7755
diff
changeset
|
2946 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2947 if (lc) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2948 fcn->stash_leading_comment (lc); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2949 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2950 fcn->define_ret_list (ret_list); |
7755
ea9cb4d68dbf
avoid installing subfunctions twice
John W. Eaton <jwe@octave.org>
parents:
7750
diff
changeset
|
2951 |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2952 if (current_function_depth > 1 || parsing_subfunctions) |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2953 { |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2954 // 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
|
2955 // _subfunction_ somewhere? |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2956 fcn->mark_as_nested_function (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2957 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2958 symbol_table::install_subfunction (nm, octave_value (fcn), |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2959 primary_fcn_scope); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2960 } |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2961 |
9761
5f8971be8e12
parse.y (finish_function): retrun function object unless parsing function file
John W. Eaton <jwe@octave.org>
parents:
9506
diff
changeset
|
2962 if (! reading_fcn_file) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2963 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2964 // 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
|
2965 // 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
|
2966 // 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
|
2967 // 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
|
2968 // 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
|
2969 // 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
|
2970 // load_fcn_from_file,, parse_fcn_file, and |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2971 // 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
|
2972 |
5f8971be8e12
parse.y (finish_function): retrun function object unless parsing function file
John W. Eaton <jwe@octave.org>
parents:
9506
diff
changeset
|
2973 retval = new tree_function_def (fcn); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
2974 } |
8282
47a3d2f829e4
clear local symbol table after parsing function
John W. Eaton <jwe@octave.org>
parents:
8150
diff
changeset
|
2975 |
9009
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2976 // 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
|
2977 // 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
|
2978 // in lex.l). |
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2979 |
da58ec8f62e8
tag bug don't define forced variables
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
2980 symbol_table::unmark_forced_variables (fcn->scope ()); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
2981 } |
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 return retval; |
1623 | 2984 } |
2985 | |
2883 | 2986 static void |
2987 recover_from_parsing_function (void) | |
2988 { | |
4238 | 2989 if (symtab_context.empty ()) |
3903 | 2990 panic_impossible (); |
2991 | |
7336 | 2992 symbol_table::set_scope (symtab_context.top ()); |
4238 | 2993 symtab_context.pop (); |
2883 | 2994 |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2995 if (reading_fcn_file && current_function_depth == 1 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2996 && ! parsing_subfunctions) |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2997 parsing_subfunctions = true; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2998 |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
2999 current_function_depth--; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3000 |
2883 | 3001 lexer_flags.parsed_function_name = false; |
3002 lexer_flags.looking_at_return_list = false; | |
3003 lexer_flags.looking_at_parameter_list = false; | |
3004 } | |
3005 | |
2846 | 3006 // Make an index expression. |
3007 | |
751 | 3008 static tree_index_expression * |
3929 | 3009 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
|
3010 char type) |
751 | 3011 { |
3012 tree_index_expression *retval = 0; | |
10206
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
parents:
10188
diff
changeset
|
3013 |
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
parents:
10188
diff
changeset
|
3014 if (args && args->has_magic_tilde ()) |
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 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
|
3017 return retval; |
37a08e0ce2dc
support Matlab-style empty output/input arguments
Jaroslav Hajek <highegg@gmail.com>
parents:
10188
diff
changeset
|
3018 } |
751 | 3019 |
2970 | 3020 int l = expr->line (); |
3021 int c = expr->column (); | |
3022 | |
3023 expr->mark_postfix_indexed (); | |
3024 | |
3933 | 3025 if (expr->is_index_expression ()) |
3026 { | |
3027 tree_index_expression *tmp = static_cast<tree_index_expression *> (expr); | |
3028 | |
3029 tmp->append (args, type); | |
3030 | |
3031 retval = tmp; | |
3032 } | |
3033 else | |
3034 retval = new tree_index_expression (expr, args, l, c, type); | |
2970 | 3035 |
3036 return retval; | |
3037 } | |
3038 | |
3039 // Make an indirect reference expression. | |
3040 | |
3930 | 3041 static tree_index_expression * |
3523 | 3042 make_indirect_ref (tree_expression *expr, const std::string& elt) |
2970 | 3043 { |
3930 | 3044 tree_index_expression *retval = 0; |
2970 | 3045 |
3046 int l = expr->line (); | |
3047 int c = expr->column (); | |
3048 | |
3933 | 3049 if (expr->is_index_expression ()) |
3050 { | |
3051 tree_index_expression *tmp = static_cast<tree_index_expression *> (expr); | |
3052 | |
3053 tmp->append (elt); | |
3054 | |
3055 retval = tmp; | |
3056 } | |
3057 else | |
3058 retval = new tree_index_expression (expr, elt, l, c); | |
2970 | 3059 |
3060 lexer_flags.looking_at_indirect_ref = false; | |
751 | 3061 |
3062 return retval; | |
3063 } | |
1511 | 3064 |
4131 | 3065 // Make an indirect reference expression with dynamic field name. |
3066 | |
3067 static tree_index_expression * | |
3068 make_indirect_ref (tree_expression *expr, tree_expression *elt) | |
3069 { | |
3070 tree_index_expression *retval = 0; | |
3071 | |
3072 int l = expr->line (); | |
3073 int c = expr->column (); | |
3074 | |
3075 if (expr->is_index_expression ()) | |
3076 { | |
3077 tree_index_expression *tmp = static_cast<tree_index_expression *> (expr); | |
3078 | |
3079 tmp->append (elt); | |
3080 | |
3081 retval = tmp; | |
3082 } | |
3083 else | |
3084 retval = new tree_index_expression (expr, elt, l, c); | |
3085 | |
3086 lexer_flags.looking_at_indirect_ref = false; | |
3087 | |
3088 return retval; | |
3089 } | |
3090 | |
2846 | 3091 // Make a declaration command. |
3092 | |
3093 static tree_decl_command * | |
3094 make_decl_command (int tok, token *tok_val, tree_decl_init_list *lst) | |
3095 { | |
3096 tree_decl_command *retval = 0; | |
3097 | |
3098 int l = tok_val->line (); | |
3099 int c = tok_val->column (); | |
3100 | |
3101 switch (tok) | |
3102 { | |
3103 case GLOBAL: | |
3104 retval = new tree_global_command (lst, l, c); | |
3105 break; | |
3106 | |
3107 case STATIC: | |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3108 if (current_function_depth > 0) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3109 retval = new tree_static_command (lst, l, c); |
2846 | 3110 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3111 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3112 if (reading_script_file) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3113 warning ("ignoring persistent declaration near line %d of file `%s'", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3114 l, curr_fcn_file_full_name.c_str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3115 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3116 warning ("ignoring persistent declaration near line %d", l); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3117 } |
2846 | 3118 break; |
3119 | |
3120 default: | |
3121 panic_impossible (); | |
3122 break; | |
3123 } | |
3124 | |
3125 return retval; | |
3126 } | |
3127 | |
10207
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3128 static tree_argument_list * |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3129 validate_matrix_row (tree_argument_list *row) |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3130 { |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3131 if (row && row->has_magic_tilde ()) |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3132 yyerror ("invalid use of tilde (~) in matrix expression"); |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3133 return row; |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3134 } |
76a880a588ce
error when using ~ in matrix expression
Jaroslav Hajek <highegg@gmail.com>
parents:
10206
diff
changeset
|
3135 |
1623 | 3136 // Finish building a matrix list. |
3137 | |
3138 static tree_expression * | |
1829 | 3139 finish_matrix (tree_matrix *m) |
1623 | 3140 { |
3110 | 3141 tree_expression *retval = m; |
3142 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3143 unwind_protect frame; |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3144 |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3145 frame.protect_var (error_state); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3146 frame.protect_var (warning_state); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3147 |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3148 frame.protect_var (discard_error_messages); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3149 frame.protect_var (discard_warning_messages); |
4452 | 3150 |
3815 | 3151 discard_error_messages = true; |
4452 | 3152 discard_warning_messages = true; |
1623 | 3153 |
2533 | 3154 if (m->all_elements_are_constant ()) |
1829 | 3155 { |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8471
diff
changeset
|
3156 octave_value tmp = m->rvalue1 (); |
1623 | 3157 |
3489 | 3158 if (! (error_state || warning_state)) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3159 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3160 tree_constant *tc_retval |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3161 = new tree_constant (tmp, m->line (), m->column ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3162 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3163 std::ostringstream buf; |
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 tree_print_code tpc (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 m->accept (tpc); |
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:
10250
diff
changeset
|
3169 tc_retval->stash_original_text (buf.str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3170 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3171 delete m; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3172 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3173 retval = tc_retval; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3174 } |
1623 | 3175 } |
3110 | 3176 |
1623 | 3177 return retval; |
3178 } | |
3179 | |
3351 | 3180 // Finish building a cell list. |
3181 | |
3182 static tree_expression * | |
3183 finish_cell (tree_cell *c) | |
3184 { | |
5875 | 3185 return finish_matrix (c); |
3351 | 3186 } |
3187 | |
1511 | 3188 static void |
3189 maybe_warn_missing_semi (tree_statement_list *t) | |
3190 { | |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3191 if (current_function_depth > 0) |
1511 | 3192 { |
4219 | 3193 tree_statement *tmp = t->back(); |
1607 | 3194 |
1511 | 3195 if (tmp->is_expression ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3196 warning_with_id |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3197 ("Octave:missing-semicolon", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3198 "missing semicolon near line %d, column %d in file `%s'", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3199 tmp->line (), tmp->column (), curr_fcn_file_full_name.c_str ()); |
1511 | 3200 } |
3201 } | |
1994 | 3202 |
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
|
3203 static tree_statement_list * |
2525 | 3204 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
|
3205 bool warn_missing_semi) |
2525 | 3206 { |
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
|
3207 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
|
3208 |
2525 | 3209 switch (sep) |
3210 { | |
3211 case ';': | |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8471
diff
changeset
|
3212 tmp->set_print_flag (false); |
2525 | 3213 break; |
3214 | |
3215 case 0: | |
3216 case ',': | |
3217 case '\n': | |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8471
diff
changeset
|
3218 tmp->set_print_flag (true); |
2525 | 3219 if (warn_missing_semi) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3220 maybe_warn_missing_semi (list); |
2525 | 3221 break; |
3222 | |
3223 default: | |
3224 warning ("unrecognized separator type!"); | |
3225 break; | |
3226 } | |
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
|
3227 |
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
|
3228 // 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
|
3229 // 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
|
3230 |
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 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
|
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 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
|
3234 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
|
3235 } |
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 |
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 return list; |
2525 | 3238 } |
3239 | |
8448
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3240 static tree_statement_list * |
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3241 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
|
3242 { |
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
|
3243 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
|
3244 } |
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3245 |
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3246 static tree_statement_list * |
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3247 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
|
3248 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
|
3249 { |
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
|
3250 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
|
3251 |
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 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
|
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 return list; |
8448
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3255 } |
d6c0d5f208de
parse.y: avoid storing null statements in statement lists
John W. Eaton <jwe@octave.org>
parents:
8447
diff
changeset
|
3256 |
3021 | 3257 static void |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3258 safe_fclose (FILE *f) |
3021 | 3259 { |
5775 | 3260 // FIXME -- comments at the end of an input file are |
3765 | 3261 // discarded (otherwise, they would be appended to the next |
3262 // statement, possibly from the command line or another file, which | |
3263 // can be quite confusing). | |
3264 | |
5308 | 3265 octave_comment_list *tc = octave_comment_buffer::get_comment (); |
3266 | |
3267 delete tc; | |
3765 | 3268 |
3021 | 3269 if (f) |
3270 fclose (static_cast<FILE *> (f)); | |
3271 } | |
3272 | |
3273 static bool | |
5175 | 3274 looks_like_copyright (const std::string& s) |
3021 | 3275 { |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3276 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
|
3277 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3278 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
|
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 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
|
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 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
|
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 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3285 return retval; |
3021 | 3286 } |
3287 | |
4540 | 3288 static int |
3289 text_getc (FILE *f) | |
3290 { | |
3291 int c = getc (f); | |
3292 | |
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
|
3293 // Convert CRLF into just LF and single CR into LF. |
4540 | 3294 |
3295 if (c == '\r') | |
3296 { | |
3297 c = getc (f); | |
3298 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3299 if (c != '\n') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3300 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3301 ungetc (c, f); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3302 c = '\n'; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3303 } |
4540 | 3304 } |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3305 |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3306 if (c == '\n') |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3307 input_line_number++; |
4540 | 3308 |
3309 return c; | |
3310 } | |
3311 | |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3312 class |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3313 stdio_stream_reader : public stream_reader |
3021 | 3314 { |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3315 public: |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3316 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
|
3317 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3318 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
|
3319 int ungetc (int c) |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3320 { |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3321 if (c == '\n') |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3322 input_line_number--; |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3323 |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3324 return ::ungetc (c, f); |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3325 } |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3326 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3327 private: |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3328 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
|
3329 }; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3330 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3331 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
|
3332 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
|
3333 { |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3334 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
|
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 while ((c = reader.getc ()) != EOF) |
3021 | 3337 { |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3338 switch (c) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3339 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3340 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3341 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3342 current_input_column++; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3343 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3344 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3345 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3346 current_input_column = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3347 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3348 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3349 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3350 current_input_column--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3351 reader.ungetc (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3352 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3353 } |
3021 | 3354 } |
3355 | |
3356 done: | |
3357 | |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3358 return (c == EOF); |
3021 | 3359 } |
3360 | |
9476 | 3361 static bool |
3362 looking_at_classdef_keyword (FILE *ffile) | |
3363 { | |
3364 bool status = false; | |
3365 | |
3366 long pos = ftell (ffile); | |
3367 | |
3368 char buf [10]; | |
3369 fgets (buf, 10, ffile); | |
3370 size_t len = strlen (buf); | |
3371 if (len > 8 && strncmp (buf, "classdef", 8) == 0 | |
3372 && ! (isalnum (buf[8]) || buf[8] == '_')) | |
3373 status = true; | |
3374 | |
3375 fseek (ffile, pos, SEEK_SET); | |
3376 | |
3377 return status; | |
3378 } | |
3379 | |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3380 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
|
3381 gobble_leading_white_space (FILE *ffile, bool& eof) |
3021 | 3382 { |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3383 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
|
3384 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3385 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
|
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 // 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
|
3388 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
|
3389 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3390 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
|
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 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
|
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 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
|
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 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
|
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 if (eof) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3399 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
|
3400 |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3401 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
|
3402 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3403 if (txt.empty ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3404 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
|
3405 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3406 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
|
3407 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3408 help_txt = txt; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3409 have_help_text = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3410 } |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3411 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3412 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
|
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 if (eof) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3415 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
|
3416 } |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3417 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3418 return help_txt; |
3021 | 3419 } |
3420 | |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3421 static bool |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3422 looking_at_function_keyword (FILE *ffile) |
5931 | 3423 { |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3424 bool status = false; |
3021 | 3425 |
3426 long pos = ftell (ffile); | |
3427 | |
3428 char buf [10]; | |
3429 fgets (buf, 10, ffile); | |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3430 size_t len = strlen (buf); |
3021 | 3431 if (len > 8 && strncmp (buf, "function", 8) == 0 |
3432 && ! (isalnum (buf[8]) || buf[8] == '_')) | |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3433 status = true; |
3021 | 3434 |
3435 fseek (ffile, pos, SEEK_SET); | |
3436 | |
3437 return status; | |
3438 } | |
3439 | |
7336 | 3440 static octave_function * |
3441 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
|
3442 bool force_script = false, bool require_file = true, |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3443 const std::string& warn_for = std::string ()) |
3021 | 3444 { |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3445 unwind_protect frame; |
3021 | 3446 |
7336 | 3447 octave_function *fcn_ptr = 0; |
3021 | 3448 |
3449 // Open function file and parse. | |
3450 | |
3451 FILE *in_stream = command_editor::get_input_stream (); | |
3452 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3453 frame.add_fcn (command_editor::set_input_stream, in_stream); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3454 |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3455 frame.protect_var (ff_instream); |
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 (input_line_number); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3458 frame.protect_var (current_input_column); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3459 frame.protect_var (reading_fcn_file); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3460 frame.protect_var (line_editing); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3461 frame.protect_var (current_class_name); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3462 frame.protect_var (current_function_depth); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3463 frame.protect_var (max_function_depth); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3464 frame.protect_var (parsing_subfunctions); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3465 frame.protect_var (endfunction_found); |
3021 | 3466 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
3467 input_line_number = 1; |
3021 | 3468 current_input_column = 1; |
3469 reading_fcn_file = true; | |
3470 line_editing = false; | |
7336 | 3471 current_class_name = dispatch_type; |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3472 current_function_depth = 0; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3473 max_function_depth = 0; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3474 parsing_subfunctions = false; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
3475 endfunction_found = false; |
3021 | 3476 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3477 // The next four lines must be in this order. |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3478 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
|
3479 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3480 // FIXME -- we shouldn't need both the |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3481 // command_history object and the |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3482 // Vsaving_history variable... |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3483 command_history::ignore_entries (); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3484 |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3485 frame.protect_var (Vsaving_history); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3486 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3487 Vsaving_history = false; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3488 |
3021 | 3489 FILE *ffile = get_input_from_file (ff, 0); |
3490 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3491 frame.add_fcn (safe_fclose, ffile); |
3021 | 3492 |
3493 if (ffile) | |
3494 { | |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3495 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
|
3496 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3497 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
|
3498 |
10872
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3499 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
|
3500 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
|
3501 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7719
diff
changeset
|
3502 if (! eof) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3503 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3504 std::string file_type; |
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 frame.protect_var (get_input_from_eval_string); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3507 frame.protect_var (parser_end_of_input); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3508 frame.protect_var (reading_fcn_file); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3509 frame.protect_var (reading_script_file); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3510 frame.protect_var (reading_classdef_file); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3511 frame.protect_var (Vecho_executing_commands); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3512 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3513 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3514 get_input_from_eval_string = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3515 parser_end_of_input = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3516 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3517 if (! force_script && looking_at_function_keyword (ffile)) |
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 file_type = "function"; |
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 Vecho_executing_commands = ECHO_OFF; |
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 reading_classdef_file = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3524 reading_fcn_file = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3525 reading_script_file = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3526 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3527 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
|
3528 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3529 file_type = "classdef"; |
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 Vecho_executing_commands = ECHO_OFF; |
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 reading_classdef_file = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3534 reading_fcn_file = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3535 reading_script_file = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3536 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3537 else |
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 file_type = "script"; |
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 Vecho_executing_commands = ECHO_OFF; |
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 reading_classdef_file = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3544 reading_fcn_file = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3545 reading_script_file = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3546 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3547 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3548 YY_BUFFER_STATE old_buf = current_buffer (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3549 YY_BUFFER_STATE new_buf = create_buffer (ffile); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3550 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3551 frame.add_fcn (switch_to_buffer, old_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3552 frame.add_fcn (delete_buffer, new_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3553 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3554 switch_to_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 frame.protect_var (primary_fcn_ptr); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3557 primary_fcn_ptr = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3558 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3559 reset_parser (); |
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 // 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
|
3562 // 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
|
3563 // interrupt. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3564 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
|
3565 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
|
3566 |
10879
5af852c93af3
oct-parse.yy: Restore parsing of help text.
Rik <octave@nomad.inbox5.com>
parents:
10872
diff
changeset
|
3567 if (! help_txt.empty ()) |
5af852c93af3
oct-parse.yy: Restore parsing of help text.
Rik <octave@nomad.inbox5.com>
parents:
10872
diff
changeset
|
3568 help_buf.push (help_txt); |
5af852c93af3
oct-parse.yy: Restore parsing of help text.
Rik <octave@nomad.inbox5.com>
parents:
10872
diff
changeset
|
3569 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3570 if (reading_script_file) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3571 prep_lexer_for_script_file (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3572 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3573 prep_lexer_for_function_file (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3574 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3575 lexer_flags.parsing_class_method = ! dispatch_type.empty (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3576 |
11258
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
3577 frame.protect_var (global_command); |
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
3578 |
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
3579 global_command = 0; |
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
3580 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3581 int status = yyparse (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3582 |
11258
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
3583 delete global_command; |
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
3584 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3585 fcn_ptr = primary_fcn_ptr; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3586 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3587 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
|
3588 warning_with_id ("Octave:nested-functions-coerced", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3589 "nested functions are coerced into subfunctions " |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3590 "in file %s", ff.c_str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3591 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3592 if (status != 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3593 error ("parse error while reading %s file %s", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3594 file_type.c_str(), ff.c_str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3595 } |
10872
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3596 else |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3597 { |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3598 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
|
3599 = 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
|
3600 |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3601 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
|
3602 |
988d16d5ae34
correctly .m files that are empty or contain only comments
John W. Eaton <jwe@octave.org>
parents:
10659
diff
changeset
|
3603 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
|
3604 } |
3021 | 3605 } |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3606 else if (require_file) |
3880 | 3607 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
|
3608 else if (! warn_for.empty ()) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3609 error ("%s: unable to open file `%s'", warn_for.c_str (), ff.c_str ()); |
3021 | 3610 |
7336 | 3611 return fcn_ptr; |
3021 | 3612 } |
3613 | |
5484 | 3614 std::string |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3615 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
|
3616 std::string& file) |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3617 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3618 std::string retval; |
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 file = fcn_file_in_path (nm); |
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 if (! file.empty ()) |
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 symbol_found = true; |
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 FILE *fptr = fopen (file.c_str (), "r"); |
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 if (fptr) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3629 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3630 unwind_protect frame; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3631 frame.add_fcn (safe_fclose, fptr); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3632 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3633 bool eof; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3634 retval = gobble_leading_white_space (fptr, eof); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3635 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3636 if (retval.empty ()) |
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 octave_function *fcn = parse_fcn_file (file, ""); |
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 if (fcn) |
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 retval = fcn->doc_string (); |
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 delete fcn; |
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 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3647 } |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3648 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3649 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3650 return retval; |
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 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3653 std::string |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3654 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
|
3655 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3656 std::string file; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3657 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
|
3658 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3659 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3660 std::string |
5484 | 3661 lookup_autoload (const std::string& nm) |
3662 { | |
5626 | 3663 std::string retval; |
3664 | |
3665 typedef std::map<std::string, std::string>::const_iterator am_iter; | |
3666 | |
3667 am_iter p = autoload_map.find (nm); | |
3668 | |
3669 if (p != autoload_map.end ()) | |
6323 | 3670 retval = load_path::find_file (p->second); |
5626 | 3671 |
3672 return retval; | |
5484 | 3673 } |
3674 | |
5592 | 3675 string_vector |
3676 autoloaded_functions (void) | |
3677 { | |
3678 string_vector names (autoload_map.size()); | |
3679 | |
3680 octave_idx_type i = 0; | |
5626 | 3681 typedef std::map<std::string, std::string>::const_iterator am_iter; |
3682 for (am_iter p = autoload_map.begin (); p != autoload_map.end (); p++) | |
5592 | 3683 names[i++] = p->first; |
3684 | |
3685 return names; | |
3686 } | |
3687 | |
3688 string_vector | |
3689 reverse_lookup_autoload (const std::string& nm) | |
3690 { | |
3691 string_vector names; | |
3692 | |
5626 | 3693 typedef std::map<std::string, std::string>::const_iterator am_iter; |
3694 for (am_iter p = autoload_map.begin (); p != autoload_map.end (); p++) | |
5592 | 3695 if (nm == p->second) |
3696 names.append (p->first); | |
3697 | |
3698 return names; | |
3699 } | |
3700 | |
7336 | 3701 octave_function * |
3702 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
|
3703 const std::string& dispatch_type, |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3704 const std::string& fcn_name, bool autoload) |
3021 | 3705 { |
7336 | 3706 octave_function *retval = 0; |
3707 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3708 unwind_protect frame; |
5484 | 3709 |
7336 | 3710 std::string nm = file_name; |
6238 | 3711 |
3712 size_t nm_len = nm.length (); | |
5472 | 3713 |
3714 std::string file; | |
3715 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3716 frame.protect_var (fcn_file_from_relative_lookup); |
6323 | 3717 |
3718 fcn_file_from_relative_lookup = false; | |
3719 | |
7336 | 3720 file = nm; |
3721 | |
3722 if ((nm_len > 4 && nm.substr (nm_len-4) == ".oct") | |
3723 || (nm_len > 4 && nm.substr (nm_len-4) == ".mex") | |
3724 || (nm_len > 2 && nm.substr (nm_len-2) == ".m")) | |
5472 | 3725 { |
6238 | 3726 nm = octave_env::base_pathname (file); |
3727 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
|
3728 |
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
|
3729 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
|
3730 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
|
3731 nm = nm.substr (pos+1); |
5472 | 3732 } |
7336 | 3733 |
3734 if (autoload) | |
5472 | 3735 { |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3736 frame.protect_var (autoloading); |
7336 | 3737 autoloading = true; |
3738 } | |
3739 | |
7749
14e05160b99f
reference counting for functions loaded from shared libraries
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
3740 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
|
3741 |
10250 | 3742 file = octave_env::make_absolute (file); |
4243 | 3743 |
3744 int len = file.length (); | |
3745 | |
4244 | 3746 if (len > 4 && file.substr (len-4, len-1) == ".oct") |
3021 | 3747 { |
7336 | 3748 if (autoload && ! fcn_name.empty ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3749 nm = fcn_name; |
7336 | 3750 |
3751 retval = octave_dynamic_loader::load_oct (nm, file, fcn_file_from_relative_lookup); | |
5864 | 3752 } |
3753 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
|
3754 { |
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
|
3755 // 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
|
3756 // 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
|
3757 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
|
3758 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
|
3759 |
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 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
|
3761 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
|
3762 |
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 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
|
3764 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
|
3765 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
|
3766 |
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 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
|
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 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
|
3770 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
|
3771 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
|
3772 } |
4244 | 3773 else if (len > 2) |
3021 | 3774 { |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3775 // These are needed by yyparse. |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3776 |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3777 frame.protect_var (curr_fcn_file_name); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3778 frame.protect_var (curr_fcn_file_full_name); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3779 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3780 curr_fcn_file_name = nm; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3781 curr_fcn_file_full_name = file; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3782 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3783 retval = parse_fcn_file (file, dispatch_type, autoloading); |
3021 | 3784 } |
3785 | |
7336 | 3786 if (retval) |
8819
96d87674b818
also stash directory name for subfunctions
John W. Eaton <jwe@octave.org>
parents:
8812
diff
changeset
|
3787 { |
96d87674b818
also stash directory name for subfunctions
John W. Eaton <jwe@octave.org>
parents:
8812
diff
changeset
|
3788 retval->stash_dir_name (dir_name); |
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 if (retval->is_user_function ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3791 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3792 symbol_table::scope_id id = retval->scope (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3793 |
57a59eae83cc
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John W. Eaton <jwe@octave.org>
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changeset
|
3794 symbol_table::stash_dir_name_for_subfunctions (id, dir_name); |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
3795 } |
8819
96d87674b818
also stash directory name for subfunctions
John W. Eaton <jwe@octave.org>
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8812
diff
changeset
|
3796 } |
7336 | 3797 |
3798 return retval; | |
5312 | 3799 } |
3800 | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3801 DEFUN (autoload, args, , |
5484 | 3802 "-*- texinfo -*-\n\ |
3803 @deftypefn {Built-in Function} {} autoload (@var{function}, @var{file})\n\ | |
3804 Define @var{function} to autoload from @var{file}.\n\ | |
5626 | 3805 \n\ |
6926 | 3806 The second argument, @var{file}, should be an absolute file name or\n\ |
3807 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
|
3808 the autoload command was run. @var{file} should not depend on the\n\ |
6926 | 3809 Octave load path.\n\ |
6380 | 3810 \n\ |
3811 Normally, calls to @code{autoload} appear in PKG_ADD script files that\n\ | |
3812 are evaluated when a directory is added to the Octave's load path. To\n\ | |
6926 | 3813 avoid having to hardcode directory names in @var{file}, if @var{file}\n\ |
3814 is in the same directory as the PKG_ADD script then\n\ | |
6380 | 3815 \n\ |
3816 @example\n\ | |
6926 | 3817 autoload (\"foo\", \"bar.oct\");\n\ |
6380 | 3818 @end example\n\ |
3819 \n\ | |
9038
fca0dc2fb042
Cleanup documentation files stmt.texi and func.texi
Rik <rdrider0-list@yahoo.com>
parents:
8974
diff
changeset
|
3820 will load the function @code{foo} from the file @code{bar.oct}. The above\n\ |
6926 | 3821 when @code{bar.oct} is not in the same directory or uses like\n\ |
6380 | 3822 \n\ |
3823 @example\n\ | |
6637 | 3824 autoload (\"foo\", file_in_loadpath (\"bar.oct\"))\n\ |
6380 | 3825 @end example\n\ |
3826 \n\ | |
3827 @noindent\n\ | |
6926 | 3828 are strongly discouraged, as their behavior might be unpredictable.\n\ |
6380 | 3829 \n\ |
6637 | 3830 With no arguments, return a structure containing the current autoload map.\n\ |
6380 | 3831 @seealso{PKG_ADD}\n\ |
5484 | 3832 @end deftypefn") |
3833 { | |
5626 | 3834 octave_value retval; |
5484 | 3835 |
3836 int nargin = args.length (); | |
3837 | |
5626 | 3838 if (nargin == 0) |
3839 { | |
10350
12884915a8e4
merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents:
10315
diff
changeset
|
3840 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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|
3841 Cell file_names (dim_vector (autoload_map.size (), 1)); |
5626 | 3842 |
3843 octave_idx_type i = 0; | |
3844 typedef std::map<std::string, std::string>::const_iterator am_iter; | |
3845 for (am_iter p = autoload_map.begin (); p != autoload_map.end (); p++) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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|
3846 { |
57a59eae83cc
untabify src C++ source files
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|
3847 func_names(i) = p->first; |
57a59eae83cc
untabify src C++ source files
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|
3848 file_names(i) = p->second; |
57a59eae83cc
untabify src C++ source files
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|
3849 |
57a59eae83cc
untabify src C++ source files
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changeset
|
3850 i++; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3851 } |
5626 | 3852 |
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
|
3853 octave_map m; |
5626 | 3854 |
3855 m.assign ("function", func_names); | |
3856 m.assign ("file", file_names); | |
3857 | |
3858 retval = m; | |
3859 } | |
3860 else if (nargin == 2) | |
5484 | 3861 { |
3862 string_vector argv = args.make_argv ("autoload"); | |
3863 | |
3864 if (! error_state) | |
6380 | 3865 { |
10315
57a59eae83cc
untabify src C++ source files
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changeset
|
3866 std::string nm = argv[2]; |
57a59eae83cc
untabify src C++ source files
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|
3867 |
57a59eae83cc
untabify src C++ source files
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|
3868 if (! octave_env::absolute_pathname (nm)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3869 { |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
3870 octave_user_code *fcn = octave_call_stack::caller_user_code (); |
57a59eae83cc
untabify src C++ source files
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changeset
|
3871 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3872 bool found = false; |
57a59eae83cc
untabify src C++ source files
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changeset
|
3873 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
3874 if (fcn) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3875 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3876 std::string fname = fcn->fcn_file_name (); |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
3877 |
57a59eae83cc
untabify src C++ source files
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changeset
|
3878 if (! fname.empty ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3879 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3880 fname = octave_env::make_absolute (fname); |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
3881 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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diff
changeset
|
3882 |
57a59eae83cc
untabify src C++ source files
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changeset
|
3883 file_stat fs (fname + nm); |
57a59eae83cc
untabify src C++ source files
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changeset
|
3884 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3885 if (fs.exists ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3886 { |
57a59eae83cc
untabify src C++ source files
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changeset
|
3887 nm = fname + nm; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3888 found = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3889 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3890 } |
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 if (! found) |
57a59eae83cc
untabify src C++ source files
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changeset
|
3893 warning_with_id ("Octave:autoload-relative-file-name", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3894 "autoload: `%s' is not an absolute file name", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3895 nm.c_str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3896 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3897 autoload_map[argv[1]] = nm; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3898 } |
5484 | 3899 } |
3900 else | |
5823 | 3901 print_usage (); |
5484 | 3902 |
3903 return retval; | |
3904 } | |
3905 | |
4486 | 3906 void |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3907 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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changeset
|
3908 bool verbose, bool require_file, const std::string& warn_for) |
4486 | 3909 { |
10578
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3910 // 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
|
3911 // 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
|
3912 // 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
|
3913 // written as |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
10570
diff
changeset
|
3914 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3915 // foo1.m: |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3916 // ------ |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3917 // foo2 |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3918 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3919 // foo2.m: |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3920 // ------ |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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10570
diff
changeset
|
3921 // foo1 |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3922 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3923 // and called with |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3924 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3925 // foo1 |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3926 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3927 // (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
|
3928 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3929 // foo1.m: |
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:
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diff
changeset
|
3931 // source ("foo2.m") |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3932 // |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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changeset
|
3933 // foo2.m: |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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changeset
|
3934 // ------ |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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changeset
|
3935 // source ("foo1.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 // and called with |
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 // source ("foo1.m") |
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 // (for example). |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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changeset
|
3942 |
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3943 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
|
3944 |
4486 | 3945 std::string file_full_name = file_ops::tilde_expand (file_name); |
3946 | |
10578
cb0883127251
limit on recursion via calls to source function
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diff
changeset
|
3947 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
|
3948 |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
3949 unwind_protect frame; |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
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9794
diff
changeset
|
3950 |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
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9794
diff
changeset
|
3951 frame.protect_var (curr_fcn_file_name); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
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9794
diff
changeset
|
3952 frame.protect_var (curr_fcn_file_full_name); |
4486 | 3953 |
3954 curr_fcn_file_name = file_name; | |
3955 curr_fcn_file_full_name = file_full_name; | |
3956 | |
10578
cb0883127251
limit on recursion via calls to source function
John W. Eaton <jwe@octave.org>
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changeset
|
3957 if (source_call_depth.find (file_full_name) == source_call_depth.end ()) |
cb0883127251
limit on recursion via calls to source function
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changeset
|
3958 source_call_depth[file_full_name] = -1; |
cb0883127251
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|
3959 |
cb0883127251
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changeset
|
3960 frame.protect_var (source_call_depth[file_full_name]); |
cb0883127251
limit on recursion via calls to source function
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|
3961 |
cb0883127251
limit on recursion via calls to source function
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changeset
|
3962 source_call_depth[file_full_name]++; |
cb0883127251
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|
3963 |
cb0883127251
limit on recursion via calls to source function
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changeset
|
3964 if (source_call_depth[file_full_name] >= Vmax_recursion_depth) |
cb0883127251
limit on recursion via calls to source function
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changeset
|
3965 { |
cb0883127251
limit on recursion via calls to source function
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diff
changeset
|
3966 error ("max_recursion_depth exceeded"); |
cb0883127251
limit on recursion via calls to source function
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changeset
|
3967 return; |
cb0883127251
limit on recursion via calls to source function
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diff
changeset
|
3968 } |
cb0883127251
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changeset
|
3969 |
5975 | 3970 if (! context.empty ()) |
3971 { | |
3972 if (context == "caller") | |
10315
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|
3973 octave_call_stack::goto_caller_frame (); |
5975 | 3974 else if (context == "base") |
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untabify src C++ source files
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|
3975 octave_call_stack::goto_base_frame (); |
5975 | 3976 else |
10315
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untabify src C++ source files
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changeset
|
3977 error ("source: context must be \"caller\" or \"base\""); |
7336 | 3978 |
3979 if (! error_state) | |
10315
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untabify src C++ source files
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changeset
|
3980 frame.add_fcn (octave_call_stack::pop); |
5975 | 3981 } |
3982 | |
3983 if (! error_state) | |
3984 { | |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3985 octave_function *fcn = parse_fcn_file (file_full_name, "", true, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3986 require_file, warn_for); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3987 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
3988 if (! error_state) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3989 { |
57a59eae83cc
untabify src C++ source files
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parents:
10250
diff
changeset
|
3990 if (fcn && fcn->is_user_script ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3991 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3992 octave_value_list args; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3993 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3994 if (verbose) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3995 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3996 std::cout << "executing commands from " << file_full_name << " ... "; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3997 reading_startup_message_printed = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3998 std::cout.flush (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
3999 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
4000 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
4001 fcn->do_multi_index_op (0, args); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4002 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4003 if (verbose) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4004 std::cout << "done." << std::endl; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4005 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4006 delete fcn; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4007 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4008 } |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7699
diff
changeset
|
4009 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
4010 error ("source: error sourcing file `%s'", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10250
diff
changeset
|
4011 file_full_name.c_str ()); |
5975 | 4012 } |
4486 | 4013 } |
4014 | |
5739 | 4015 DEFUN (mfilename, args, , |
4016 "-*- texinfo -*-\n\ | |
4017 @deftypefn {Built-in Function} {} mfilename ()\n\ | |
4018 @deftypefnx {Built-in Function} {} mfilename (@code{\"fullpath\"})\n\ | |
4019 @deftypefnx {Built-in Function} {} mfilename (@code{\"fullpathext\"})\n\ | |
4020 Return the name of the currently executing file. At the top-level,\n\ | |
4021 return the empty string. Given the argument @code{\"fullpath\"},\n\ | |
4022 include the directory part of the file name, but not the extension.\n\ | |
4023 Given the argument @code{\"fullpathext\"}, include the directory part\n\ | |
4024 of the file name and the extension.\n\ | |
5774 | 4025 @end deftypefn") |
5739 | 4026 { |
4027 octave_value retval; | |
4028 | |
4029 int nargin = args.length (); | |
4030 | |
4031 if (nargin > 1) | |
4032 { | |
5823 | 4033 print_usage (); |
5739 | 4034 return retval; |
4035 } | |
4036 | |
4037 std::string arg; | |
4038 | |
4039 if (nargin == 1) | |
4040 { | |
4041 arg = args(0).string_value (); | |
4042 | |
4043 if (error_state) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4044 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4045 error ("mfilename: expecting argument to be a character string"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4046 return retval; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4047 } |
5739 | 4048 } |
4049 | |
4050 std::string fname; | |
4051 | |
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
|
4052 octave_user_code *fcn = octave_call_stack::caller_user_code (); |
5743 | 4053 |
4054 if (fcn) | |
4055 { | |
4056 fname = fcn->fcn_file_name (); | |
4057 | |
4058 if (fname.empty ()) | |
4059 fname = fcn->name (); | |
4060 } | |
5739 | 4061 |
4062 if (arg == "fullpathext") | |
4063 retval = fname; | |
4064 else | |
4065 { | |
8007
a2ab20ba78f7
make file_ops a proper singleton class
John W. Eaton <jwe@octave.org>
parents:
8001
diff
changeset
|
4066 size_t dpos = fname.rfind (file_ops::dir_sep_char ()); |
5747 | 4067 size_t epos = fname.rfind ('.'); |
4068 | |
4069 if (epos <= dpos) | |
8021 | 4070 epos = std::string::npos; |
4071 | |
4072 fname = (epos != std::string::npos) ? fname.substr (0, epos) : fname; | |
5739 | 4073 |
4074 if (arg == "fullpath") | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4075 retval = fname; |
5739 | 4076 else |
8021 | 4077 retval = (dpos != std::string::npos) ? fname.substr (dpos+1) : fname; |
5739 | 4078 } |
4079 | |
4080 return retval; | |
4081 } | |
4082 | |
4083 | |
3021 | 4084 DEFUN (source, args, , |
3371 | 4085 "-*- texinfo -*-\n\ |
4086 @deftypefn {Built-in Function} {} source (@var{file})\n\ | |
4087 Parse and execute the contents of @var{file}. This is equivalent to\n\ | |
4088 executing commands from a script file, but without requiring the file to\n\ | |
4089 be named @file{@var{file}.m}.\n\ | |
4090 @end deftypefn") | |
3021 | 4091 { |
4092 octave_value_list retval; | |
4093 | |
4094 int nargin = args.length (); | |
4095 | |
5975 | 4096 if (nargin == 1 || nargin == 2) |
3021 | 4097 { |
3523 | 4098 std::string file_name = args(0).string_value (); |
3021 | 4099 |
4100 if (! error_state) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4101 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10250
diff
changeset
|
4102 std::string context; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4103 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10250
diff
changeset
|
4104 if (nargin == 2) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4105 context = args(1).string_value (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4106 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4107 if (! error_state) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4108 source_file (file_name, context); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4109 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4110 error ("source: expecting context to be character string"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4111 } |
3021 | 4112 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4113 error ("source: expecting file name as argument"); |
3021 | 4114 } |
4115 else | |
5823 | 4116 print_usage (); |
3021 | 4117 |
4118 return retval; | |
4119 } | |
4120 | |
3726 | 4121 // Evaluate an Octave function (built-in or interpreted) and return |
3844 | 4122 // the list of result values. NAME is the name of the function to |
4123 // call. ARGS are the arguments to the function. NARGOUT is the | |
4124 // number of output arguments expected. | |
3726 | 4125 |
3021 | 4126 octave_value_list |
3523 | 4127 feval (const std::string& name, const octave_value_list& args, int nargout) |
3156 | 4128 { |
4129 octave_value_list retval; | |
4130 | |
7336 | 4131 octave_value fcn = symbol_table::find_function (name, args); |
4132 | |
4133 if (fcn.is_defined ()) | |
4134 retval = fcn.do_multi_index_op (nargout, args); | |
4135 else | |
10443
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10426
diff
changeset
|
4136 { |
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10426
diff
changeset
|
4137 maybe_missing_function_hook (name); |
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10426
diff
changeset
|
4138 if (! error_state) |
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10426
diff
changeset
|
4139 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
|
4140 } |
3156 | 4141 |
4142 return retval; | |
4143 } | |
4144 | |
4342 | 4145 octave_value_list |
4146 feval (octave_function *fcn, const octave_value_list& args, int nargout) | |
4147 { | |
4148 octave_value_list retval; | |
4149 | |
4150 if (fcn) | |
4151 retval = fcn->do_multi_index_op (nargout, args); | |
4152 | |
4153 return retval; | |
4154 } | |
4155 | |
4156 static octave_value_list | |
4157 get_feval_args (const octave_value_list& args) | |
4158 { | |
10659
8baff2aceabc
fix slicing value lists with name tags (bug #29960)
Jaroslav Hajek <highegg@gmail.com>
parents:
10578
diff
changeset
|
4159 return args.slice (1, args.length () - 1, true); |
4342 | 4160 } |
4161 | |
4162 | |
3726 | 4163 // Evaluate an Octave function (built-in or interpreted) and return |
4164 // the list of result values. The first element of ARGS should be a | |
4165 // string containing the name of the function to call, then the rest | |
4166 // are the actual arguments to the function. NARGOUT is the number of | |
4167 // output arguments expected. | |
4168 | |
3156 | 4169 octave_value_list |
3021 | 4170 feval (const octave_value_list& args, int nargout) |
4171 { | |
4172 octave_value_list retval; | |
4173 | |
4342 | 4174 int nargin = args.length (); |
4175 | |
4176 if (nargin > 0) | |
3021 | 4177 { |
4342 | 4178 octave_value f_arg = args(0); |
4179 | |
4180 if (f_arg.is_string ()) | |
4181 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4182 std::string name = f_arg.string_value (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4183 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4184 if (! error_state) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4185 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4186 octave_value_list tmp_args = get_feval_args (args); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4187 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10250
diff
changeset
|
4188 retval = feval (name, tmp_args, nargout); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4189 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10250
diff
changeset
|
4190 } |
10492
a6b64a7a3769
make feval work with overloaded handles
Jaroslav Hajek <highegg@gmail.com>
parents:
10463
diff
changeset
|
4191 else if (f_arg.is_function_handle () || f_arg.is_inline_function ()) |
10315
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 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
|
4194 |
a6b64a7a3769
make feval work with overloaded handles
Jaroslav Hajek <highegg@gmail.com>
parents:
10463
diff
changeset
|
4195 retval = f_arg.do_multi_index_op (nargout, tmp_args); |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
4196 } |
10492
a6b64a7a3769
make feval work with overloaded handles
Jaroslav Hajek <highegg@gmail.com>
parents:
10463
diff
changeset
|
4197 else |
a6b64a7a3769
make feval work with overloaded handles
Jaroslav Hajek <highegg@gmail.com>
parents:
10463
diff
changeset
|
4198 error ("feval: first argument must be a string, inline function or a function handle"); |
3021 | 4199 } |
4200 | |
4201 return retval; | |
4202 } | |
4203 | |
4204 DEFUN (feval, args, nargout, | |
3371 | 4205 "-*- texinfo -*-\n\ |
4206 @deftypefn {Built-in Function} {} feval (@var{name}, @dots{})\n\ | |
4207 Evaluate the function named @var{name}. Any arguments after the first\n\ | |
4208 are passed on to the named function. For example,\n\ | |
4209 \n\ | |
4210 @example\n\ | |
4211 feval (\"acos\", -1)\n\ | |
4212 @result{} 3.1416\n\ | |
4213 @end example\n\ | |
3021 | 4214 \n\ |
3371 | 4215 @noindent\n\ |
4216 calls the function @code{acos} with the argument @samp{-1}.\n\ | |
4217 \n\ | |
4218 The function @code{feval} is necessary in order to be able to write\n\ | |
4219 functions that call user-supplied functions, because Octave does not\n\ | |
4220 have a way to declare a pointer to a function (like C) or to declare a\n\ | |
4221 special kind of variable that can be used to hold the name of a function\n\ | |
4222 (like @code{EXTERNAL} in Fortran). Instead, you must refer to functions\n\ | |
4223 by name, and use @code{feval} to call them.\n\ | |
4224 @end deftypefn") | |
3021 | 4225 { |
4226 octave_value_list retval; | |
4227 | |
4228 int nargin = args.length (); | |
4229 | |
4230 if (nargin > 0) | |
4231 retval = feval (args, nargout); | |
4232 else | |
5823 | 4233 print_usage (); |
3021 | 4234 |
4235 return retval; | |
4236 } | |
4237 | |
11225
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4238 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
|
4239 "-*- texinfo -*-\n\ |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4240 @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
|
4241 Call the base function @var{f} even if @var{f} is overloaded to\n\ |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4242 some other function for the given type signature.\n\ |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4243 @seealso{dispatch}\n\ |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4244 @end deftypefn") |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4245 { |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4246 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
|
4247 |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4248 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
|
4249 |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4250 if (nargin > 0) |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
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11138
diff
changeset
|
4251 { |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4252 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
|
4253 |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4254 if (! error_state) |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4255 { |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4256 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
|
4257 |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4258 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
|
4259 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
|
4260 nargout); |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4261 else |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4262 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
|
4263 } |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4264 else |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4265 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
|
4266 } |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4267 else |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4268 print_usage (); |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4269 |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4270 return retval; |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4271 } |
8d8e10058df6
move builtin function from dispatch.cc to oct-parse.yy
John W. Eaton <jwe@octave.org>
parents:
11138
diff
changeset
|
4272 |
3099 | 4273 octave_value_list |
3523 | 4274 eval_string (const std::string& s, bool silent, int& parse_status, int nargout) |
3021 | 4275 { |
3877 | 4276 octave_value_list retval; |
4277 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4278 unwind_protect frame; |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4279 |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4280 frame.protect_var (input_line_number); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4281 frame.protect_var (current_input_column); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4282 frame.protect_var (get_input_from_eval_string); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4283 frame.protect_var (input_from_eval_string_pending); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4284 frame.protect_var (parser_end_of_input); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4285 frame.protect_var (line_editing); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4286 frame.protect_var (current_eval_string); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4287 frame.protect_var (current_function_depth); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4288 frame.protect_var (max_function_depth); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4289 frame.protect_var (parsing_subfunctions); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4290 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
|
4291 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
|
4292 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
|
4293 frame.protect_var (reading_classdef_file); |
3021 | 4294 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
4295 input_line_number = 1; |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8311
diff
changeset
|
4296 current_input_column = 1; |
3021 | 4297 get_input_from_eval_string = true; |
3877 | 4298 input_from_eval_string_pending = true; |
3883 | 4299 parser_end_of_input = false; |
5189 | 4300 line_editing = false; |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
4301 current_function_depth = 0; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
4302 max_function_depth = 0; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
4303 parsing_subfunctions = false; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9471
diff
changeset
|
4304 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
|
4305 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
|
4306 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
|
4307 reading_classdef_file = false; |
5189 | 4308 |
3021 | 4309 current_eval_string = s; |
4310 | |
4311 YY_BUFFER_STATE old_buf = current_buffer (); | |
4312 YY_BUFFER_STATE new_buf = create_buffer (0); | |
4313 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4314 frame.add_fcn (switch_to_buffer, old_buf); |
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4315 frame.add_fcn (delete_buffer, new_buf); |
3021 | 4316 |
4317 switch_to_buffer (new_buf); | |
4318 | |
3877 | 4319 do |
4320 { | |
4318 | 4321 reset_parser (); |
4322 | |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4323 frame.protect_var (global_command); |
7903
8018e10d2b87
save and restore global_command as needed
John W. Eaton <jwe@octave.org>
parents:
7901
diff
changeset
|
4324 |
11258
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
4325 global_command = 0; |
795c97ace02c
eliminate some possible memory leaks
John W. Eaton <jwe@octave.org>
parents:
11225
diff
changeset
|
4326 |
9260
9c2349a51218
properly unmark forced variables
John W. Eaton <jwe@octave.org>
parents:
9144
diff
changeset
|
4327 // 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
|
4328 // 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
|
4329 // interrupt. |
9c2349a51218
properly unmark forced variables
John W. Eaton <jwe@octave.org>
parents:
9144
diff
changeset
|
4330 symbol_table::scope_id scope = symbol_table::top_scope (); |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4331 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
|
4332 |
3877 | 4333 parse_status = yyparse (); |
4334 | |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8471
diff
changeset
|
4335 tree_statement_list *command_list = global_command; |
3877 | 4336 |
9260
9c2349a51218
properly unmark forced variables
John W. Eaton <jwe@octave.org>
parents:
9144
diff
changeset
|
4337 // Unmark forced variables. |
7903
8018e10d2b87
save and restore global_command as needed
John W. Eaton <jwe@octave.org>
parents:
7901
diff
changeset
|
4338 // Restore previous value of global_command. |
10067
6f79338c269b
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
9794
diff
changeset
|
4339 frame.run_top (2); |
7903
8018e10d2b87
save and restore global_command as needed
John W. Eaton <jwe@octave.org>
parents:
7901
diff
changeset
|
4340 |
3883 | 4341 if (parse_status == 0) |
3877 | 4342 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4343 if (command_list) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4344 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4345 tree_statement *stmt = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4346 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4347 if (command_list->length () == 1 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4348 && (stmt = command_list->front ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4349 && stmt->is_expression ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4350 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4351 tree_expression *expr = stmt->expression (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4352 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4353 if (silent) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4354 expr->set_print_flag (false); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4355 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4356 bool do_bind_ans = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4357 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4358 if (expr->is_identifier ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4359 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4360 tree_identifier *id |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4361 = dynamic_cast<tree_identifier *> (expr); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4362 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4363 do_bind_ans = (! id->is_variable ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4364 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4365 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4366 do_bind_ans = (! expr->is_assignment_expression ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4367 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4368 retval = expr->rvalue (nargout); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4369 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4370 if (do_bind_ans && ! (error_state || retval.empty ())) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4371 bind_ans (retval(0), expr->print_result ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4372 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4373 if (nargout == 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4374 retval = octave_value_list (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4375 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4376 else if (nargout == 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4377 command_list->accept (*current_evaluator); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4378 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4379 error ("eval: invalid use of statement list"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4380 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4381 delete command_list; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4382 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4383 command_list = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4384 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4385 if (error_state |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4386 || tree_return_command::returning |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4387 || tree_break_command::breaking |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4388 || tree_continue_command::continuing) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4389 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4390 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4391 else if (parser_end_of_input) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10250
diff
changeset
|
4392 break; |
3883 | 4393 } |
3877 | 4394 } |
4395 while (parse_status == 0); | |
3021 | 4396 |
4397 return retval; | |
4398 } | |
4399 | |
4400 octave_value | |
3523 | 4401 eval_string (const std::string& s, bool silent, int& parse_status) |
3021 | 4402 { |
4403 octave_value retval; | |
4404 | |
4405 octave_value_list tmp = eval_string (s, silent, parse_status, 1); | |
4406 | |
4407 if (! tmp.empty ()) | |
4408 retval = tmp(0); | |
4409 | |
4410 return retval; | |
4411 } | |
4412 | |
4413 static octave_value_list | |
4414 eval_string (const octave_value& arg, bool silent, int& parse_status, | |
10315
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4415 int nargout) |
3021 | 4416 { |
3523 | 4417 std::string s = arg.string_value (); |
3021 | 4418 |
4419 if (error_state) | |
4420 { | |
3523 | 4421 error ("eval: expecting std::string argument"); |
4233 | 4422 return octave_value (-1); |
3021 | 4423 } |
4424 | |
4425 return eval_string (s, silent, parse_status, nargout); | |
4426 } | |
4427 | |
4428 DEFUN (eval, args, nargout, | |
3371 | 4429 "-*- texinfo -*-\n\ |
4430 @deftypefn {Built-in Function} {} eval (@var{try}, @var{catch})\n\ | |
4431 Parse the string @var{try} and evaluate it as if it were an Octave\n\ | |
6643 | 4432 program. If that fails, evaluate the optional string @var{catch}.\n\ |
4463 | 4433 The string @var{try} is evaluated in the current context,\n\ |
4434 so any results remain available after @code{eval} returns.\n\ | |
6643 | 4435 \n\ |
4436 The following example makes the variable @var{a} with the approximate\n\ | |
4437 value 3.1416 available.\n\ | |
4438 \n\ | |
4439 @example\n\ | |
4440 eval(\"a = acos(-1);\");\n\ | |
4441 @end example\n\ | |
4442 \n\ | |
4443 If an error occurs during the evaluation of @var{try} the @var{catch}\n\ | |
8828 | 4444 string is evaluated, as the following example shows:\n\ |
6643 | 4445 \n\ |
4446 @example\n\ | |
4447 eval ('error (\"This is a bad example\");',\n\ | |
8015
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4448 'printf (\"This error occurred:\\n%s\\n\", lasterr ());');\n\ |
7001 | 4449 @print{} This error occurred:\n\ |
8015
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4450 This is a bad example\n\ |
6643 | 4451 @end example\n\ |
3371 | 4452 @end deftypefn") |
3021 | 4453 { |
4454 octave_value_list retval; | |
4455 | |
4456 int nargin = args.length (); | |
4457 | |
4458 if (nargin > 0) | |
4459 { | |
10067
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omission from last patch
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|
4460 unwind_protect frame; |
3021 | 4461 |
4462 if (nargin > 1) | |
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4463 { |
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4464 frame.protect_var (buffer_error_messages); |
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|
4465 buffer_error_messages++; |
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|
4466 } |
3021 | 4467 |
4468 int parse_status = 0; | |
4469 | |
4463 | 4470 octave_value_list tmp = eval_string (args(0), nargout > 0, |
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|
4471 parse_status, nargout); |
4463 | 4472 |
3021 | 4473 if (nargin > 1 && (parse_status != 0 || error_state)) |
10315
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4474 { |
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|
4475 error_state = 0; |
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4476 |
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4477 // Set up for letting the user print any messages from |
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4478 // errors that occurred in the first part of this eval(). |
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4479 |
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4480 buffer_error_messages--; |
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4481 |
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4482 tmp = eval_string (args(1), nargout > 0, parse_status, nargout); |
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4483 |
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4484 if (nargout > 0) |
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4485 retval = tmp; |
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4486 } |
8033
2ad5ba320b93
parse.y (Feval): Return value produced by evaluating CATCH string
John W. Eaton <jwe@octave.org>
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|
4487 else if (nargout > 0) |
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4488 retval = tmp; |
3021 | 4489 } |
4490 else | |
5823 | 4491 print_usage (); |
3021 | 4492 |
4493 return retval; | |
4494 } | |
4495 | |
7562
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|
4496 /* |
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4497 |
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4498 %% test/octave.test/eval/eval-1.m |
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4499 %!#test |
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4500 %! x = 1; |
c827f5673321
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|
4501 %! assert(eval ("x"),1); |
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4502 |
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4503 %% test/octave.test/eval/eval-2.m |
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4504 %!test |
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4505 %! x = 1; |
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4506 %! assert(eval ("x;")); |
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4507 |
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4508 %% test/octave.test/eval/eval-3.m |
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4509 %!test |
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4510 %! x = 1; |
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4511 %! assert(eval ("x;"),1); |
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|
4512 |
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|
4513 %% FIXME |
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4514 %% Disable this test as adding the ";" is redundant with eval-1 and |
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4515 %% in any case is a syntax error with assert |
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4516 %% test/octave.test/eval/eval-4.m |
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4517 %!#test |
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4518 %! x = 1; |
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4519 %! assert(eval ("x");,1); |
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4520 |
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4521 %% test/octave.test/eval/eval-5.m |
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4522 %!test |
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4523 %! eval ("flipud = 2;"); |
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4524 %! assert(flipud,2); |
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4525 |
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4526 %% test/octave.test/eval/eval-6.m |
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4527 %!function y = f () |
c827f5673321
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4528 %! eval ("flipud = 2;"); |
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4529 %! y = flipud; |
c827f5673321
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|
4530 %!test |
c827f5673321
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4531 %! assert(f,2); |
c827f5673321
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4532 |
c827f5673321
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4533 %% test/octave.test/eval/eval-7.m |
c827f5673321
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changeset
|
4534 %!#test |
c827f5673321
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|
4535 %! eval ("x = 1"); |
c827f5673321
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|
4536 %! assert(x,1); |
c827f5673321
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|
4537 |
c827f5673321
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|
4538 %% test/octave.test/eval/eval-8.m |
c827f5673321
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changeset
|
4539 %!test |
c827f5673321
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changeset
|
4540 %! eval ("x = 1;") |
c827f5673321
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changeset
|
4541 %! assert(x,1); |
c827f5673321
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|
4542 |
c827f5673321
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|
4543 %% test/octave.test/eval/eval-9.m |
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changeset
|
4544 %!test |
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|
4545 %! eval ("x = 1;"); |
c827f5673321
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|
4546 %! assert(x,1); |
c827f5673321
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|
4547 |
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|
4548 %% test/octave.test/eval/eval-10.m |
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changeset
|
4549 %!#test |
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|
4550 %! eval ("x = 1") |
c827f5673321
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|
4551 %! assert(x,1); |
c827f5673321
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changeset
|
4552 |
c827f5673321
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|
4553 %% test/octave.test/eval/eval-11.m |
c827f5673321
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changeset
|
4554 %!test |
c827f5673321
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|
4555 %! x = 1; |
c827f5673321
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changeset
|
4556 %! y = eval ("x"); |
c827f5673321
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changeset
|
4557 %! assert(y,1); |
c827f5673321
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changeset
|
4558 |
c827f5673321
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|
4559 %% test/octave.test/eval/eval-12.m |
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changeset
|
4560 %!test |
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|
4561 %! x = 1; |
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|
4562 %! y = eval ("x;"); |
c827f5673321
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|
4563 %! assert(y,1); |
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|
4564 |
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|
4565 %% test/octave.test/eval/eval-13.m |
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|
4566 %!test |
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|
4567 %! x = 1; |
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|
4568 %! y = eval ("x;"); |
c827f5673321
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changeset
|
4569 %! assert(y,1); |
c827f5673321
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changeset
|
4570 |
c827f5673321
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changeset
|
4571 %% test/octave.test/eval/eval-14.m |
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changeset
|
4572 %!test |
c827f5673321
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changeset
|
4573 %! x = 1; |
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changeset
|
4574 %! y = eval ("x"); |
c827f5673321
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changeset
|
4575 %! assert(y,1); |
c827f5673321
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changeset
|
4576 |
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changeset
|
4577 */ |
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|
4578 |
4661 | 4579 DEFUN (assignin, args, , |
4297 | 4580 "-*- texinfo -*-\n\ |
4581 @deftypefn {Built-in Function} {} assignin (@var{context}, @var{varname}, @var{value})\n\ | |
4582 Assign @var{value} to @var{varname} in context @var{context}, which\n\ | |
4583 may be either @code{\"base\"} or @code{\"caller\"}.\n\ | |
4584 @end deftypefn") | |
4585 { | |
4586 octave_value_list retval; | |
4587 | |
4588 int nargin = args.length (); | |
4589 | |
4590 if (nargin == 3) | |
4591 { | |
4592 std::string context = args(0).string_value (); | |
4593 | |
4594 if (! error_state) | |
4595 { | |
10315
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changeset
|
4596 unwind_protect frame; |
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changeset
|
4597 |
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changeset
|
4598 if (context == "caller") |
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4599 octave_call_stack::goto_caller_frame (); |
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4600 else if (context == "base") |
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4601 octave_call_stack::goto_base_frame (); |
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4602 else |
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4603 error ("assignin: context must be \"caller\" or \"base\""); |
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4604 |
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4605 if (! error_state) |
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|
4606 { |
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4607 frame.add_fcn (octave_call_stack::pop); |
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4608 |
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4609 std::string nm = args(1).string_value (); |
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4610 |
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4611 if (! error_state) |
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|
4612 { |
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4613 if (valid_identifier (nm)) |
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4614 symbol_table::varref (nm) = args(2); |
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4615 else |
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4616 error ("assignin: invalid variable name"); |
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|
4617 } |
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4618 else |
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4619 error ("assignin: expecting variable name as second argument"); |
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4620 } |
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4621 } |
4297 | 4622 else |
4623 error ("assignin: expecting string as first argument"); | |
4624 } | |
4625 else | |
5823 | 4626 print_usage (); |
4297 | 4627 |
4628 return retval; | |
4629 } | |
4630 | |
4245 | 4631 DEFUN (evalin, args, nargout, |
4632 "-*- texinfo -*-\n\ | |
4633 @deftypefn {Built-in Function} {} evalin (@var{context}, @var{try}, @var{catch})\n\ | |
4634 Like @code{eval}, except that the expressions are evaluated in the\n\ | |
4635 context @var{context}, which may be either @code{\"caller\"} or\n\ | |
4246 | 4636 @code{\"base\"}.\n\ |
4245 | 4637 @end deftypefn") |
4638 { | |
4639 octave_value_list retval; | |
4640 | |
4641 int nargin = args.length (); | |
4642 | |
4643 if (nargin > 1) | |
4644 { | |
4645 std::string context = args(0).string_value (); | |
4646 | |
4647 if (! error_state) | |
4648 { | |
10315
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4649 unwind_protect frame; |
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4650 |
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4651 if (context == "caller") |
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4652 octave_call_stack::goto_caller_frame (); |
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4653 else if (context == "base") |
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4654 octave_call_stack::goto_base_frame (); |
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4655 else |
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4656 error ("evalin: context must be \"caller\" or \"base\""); |
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|
4657 |
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|
4658 if (! error_state) |
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|
4659 { |
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|
4660 frame.add_fcn (octave_call_stack::pop); |
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|
4661 |
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4662 if (nargin > 2) |
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|
4663 { |
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|
4664 frame.protect_var (buffer_error_messages); |
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|
4665 buffer_error_messages++; |
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|
4666 } |
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|
4667 |
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4668 int parse_status = 0; |
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4669 |
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4670 octave_value_list tmp = eval_string (args(1), nargout > 0, |
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4671 parse_status, nargout); |
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|
4672 |
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4673 if (nargout > 0) |
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|
4674 retval = tmp; |
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|
4675 |
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|
4676 if (nargin > 2 && (parse_status != 0 || error_state)) |
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|
4677 { |
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|
4678 error_state = 0; |
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|
4679 |
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4680 // Set up for letting the user print any messages from |
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4681 // errors that occurred in the first part of this eval(). |
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|
4682 |
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|
4683 buffer_error_messages--; |
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|
4684 |
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4685 tmp = eval_string (args(2), nargout > 0, |
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4686 parse_status, nargout); |
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|
4687 |
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4688 retval = (nargout > 0) ? tmp : octave_value_list (); |
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|
4689 } |
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|
4690 } |
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4691 } |
4245 | 4692 else |
4693 error ("evalin: expecting string as first argument"); | |
4694 } | |
4695 else | |
5823 | 4696 print_usage (); |
4245 | 4697 |
4698 return retval; | |
4699 } | |
4700 | |
8311
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
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diff
changeset
|
4701 DEFUN (__parser_debug_flag__, args, nargout, |
8812
7d48766c21a5
use consistent format for doc strings of internal functions
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|
4702 "-*- texinfo -*-\n\ |
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|
4703 @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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|
4704 Undocumented internal function.\n\ |
7d48766c21a5
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diff
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|
4705 @end deftypefn") |
8311
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
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changeset
|
4706 { |
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
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diff
changeset
|
4707 octave_value retval; |
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
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changeset
|
4708 |
7124bffc89c7
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diff
changeset
|
4709 bool debug_flag = octave_debug; |
7124bffc89c7
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changeset
|
4710 |
7124bffc89c7
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changeset
|
4711 retval = set_internal_variable (debug_flag, args, nargout, |
10315
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4712 "__parser_debug_flag__"); |
8311
7124bffc89c7
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changeset
|
4713 |
7124bffc89c7
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changeset
|
4714 octave_debug = debug_flag; |
7124bffc89c7
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changeset
|
4715 |
7124bffc89c7
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8283
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changeset
|
4716 return retval; |
7124bffc89c7
parse.y (F__parser_debug_flag__): New function.
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8283
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changeset
|
4717 } |