Mercurial > octave-nkf
annotate src/pt-pr-code.cc @ 12770:3666e8e6f96e stable release-3-4-2
Version 3.4.2 released.
* configure.ac (AC_INIT): Version is now 3.4.2.
(OCTAVE_RELEASE_DATE): Now 2011-06-24.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 24 Jun 2011 10:36:40 -0400 |
| parents | 12df7854fa7c |
| children | cf5ebc0e47e4 |
| rev | line source |
|---|---|
| 2123 | 1 /* |
| 2 | |
| 11523 | 3 Copyright (C) 1996-2011 John W. Eaton |
| 2123 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 2123 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 2123 | 20 |
| 21 */ | |
| 22 | |
| 23 #ifdef HAVE_CONFIG_H | |
| 24 #include <config.h> | |
| 25 #endif | |
| 26 | |
| 3665 | 27 #include <cctype> |
| 28 | |
| 3503 | 29 #include <iostream> |
| 2123 | 30 |
| 3665 | 31 #include "comment-list.h" |
| 2123 | 32 #include "error.h" |
| 2969 | 33 #include "ov-usr-fcn.h" |
| 2123 | 34 #include "pr-output.h" |
| 2988 | 35 #include "pt-all.h" |
| 2123 | 36 |
| 37 void | |
| 5861 | 38 tree_print_code::visit_anon_fcn_handle (tree_anon_fcn_handle& afh) |
| 39 { | |
| 40 indent (); | |
| 41 | |
| 42 print_parens (afh, "("); | |
| 43 | |
| 44 os << "@("; | |
| 45 | |
| 46 tree_parameter_list *param_list = afh.parameter_list (); | |
| 47 | |
| 48 if (param_list) | |
| 49 param_list->accept (*this); | |
| 50 | |
| 51 os << ") "; | |
| 52 | |
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53 print_fcn_handle_body (afh.body ()); |
| 5861 | 54 |
| 55 print_parens (afh, ")"); | |
| 56 } | |
| 57 | |
| 58 void | |
| 2123 | 59 tree_print_code::visit_argument_list (tree_argument_list& lst) |
| 60 { | |
| 4219 | 61 tree_argument_list::iterator p = lst.begin (); |
| 2123 | 62 |
| 4219 | 63 while (p != lst.end ()) |
| 2123 | 64 { |
| 4219 | 65 tree_expression *elt = *p++; |
| 2123 | 66 |
| 67 if (elt) | |
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68 { |
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69 elt->accept (*this); |
| 2123 | 70 |
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71 if (p != lst.end ()) |
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72 os << ", "; |
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73 } |
| 2123 | 74 } |
| 75 } | |
| 76 | |
| 77 void | |
| 78 tree_print_code::visit_binary_expression (tree_binary_expression& expr) | |
| 79 { | |
| 80 indent (); | |
| 81 | |
| 2961 | 82 print_parens (expr, "("); |
| 2123 | 83 |
| 84 tree_expression *op1 = expr.lhs (); | |
| 85 | |
| 86 if (op1) | |
| 87 op1->accept (*this); | |
| 88 | |
| 89 os << " " << expr.oper () << " "; | |
| 90 | |
| 91 tree_expression *op2 = expr.rhs (); | |
| 92 | |
| 93 if (op2) | |
| 94 op2->accept (*this); | |
| 95 | |
| 2961 | 96 print_parens (expr, ")"); |
| 2123 | 97 } |
| 98 | |
| 99 void | |
| 4207 | 100 tree_print_code::visit_break_command (tree_break_command&) |
| 2123 | 101 { |
| 102 indent (); | |
| 103 | |
| 104 os << "break"; | |
| 105 } | |
| 106 | |
| 107 void | |
| 108 tree_print_code::visit_colon_expression (tree_colon_expression& expr) | |
| 109 { | |
| 110 indent (); | |
| 111 | |
| 2961 | 112 print_parens (expr, "("); |
| 2123 | 113 |
| 114 tree_expression *op1 = expr.base (); | |
| 115 | |
| 116 if (op1) | |
| 117 op1->accept (*this); | |
| 118 | |
| 119 // Stupid syntax. | |
| 120 | |
| 121 tree_expression *op3 = expr.increment (); | |
| 122 | |
| 123 if (op3) | |
| 124 { | |
| 125 os << ":"; | |
| 126 op3->accept (*this); | |
| 127 } | |
| 128 | |
| 129 tree_expression *op2 = expr.limit (); | |
| 130 | |
| 131 if (op2) | |
| 132 { | |
| 133 os << ":"; | |
| 134 op2->accept (*this); | |
| 135 } | |
| 136 | |
| 2961 | 137 print_parens (expr, ")"); |
| 2123 | 138 } |
| 139 | |
| 140 void | |
| 4207 | 141 tree_print_code::visit_continue_command (tree_continue_command&) |
| 2123 | 142 { |
| 143 indent (); | |
| 144 | |
| 145 os << "continue"; | |
| 146 } | |
| 147 | |
| 148 void | |
|
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149 tree_print_code::do_decl_command (tree_decl_command& cmd) |
| 2846 | 150 { |
| 151 indent (); | |
| 152 | |
| 153 os << cmd.name () << " "; | |
| 154 | |
| 155 tree_decl_init_list *init_list = cmd.initializer_list (); | |
| 156 | |
| 157 if (init_list) | |
| 158 init_list->accept (*this); | |
| 159 } | |
| 160 | |
| 161 void | |
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162 tree_print_code::visit_global_command (tree_global_command& cmd) |
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163 { |
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164 do_decl_command (cmd); |
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165 } |
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166 |
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167 void |
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168 tree_print_code::visit_static_command (tree_static_command& cmd) |
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169 { |
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170 do_decl_command (cmd); |
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171 } |
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172 |
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173 void |
| 2846 | 174 tree_print_code::visit_decl_elt (tree_decl_elt& cmd) |
| 175 { | |
| 176 tree_identifier *id = cmd.ident (); | |
| 177 | |
| 178 if (id) | |
| 179 id->accept (*this); | |
| 180 | |
| 2969 | 181 tree_expression *expr = cmd.expression (); |
| 2846 | 182 |
| 2969 | 183 if (expr) |
| 184 { | |
| 185 os << " = "; | |
| 186 | |
| 187 expr->accept (*this); | |
| 188 } | |
| 2846 | 189 } |
| 190 | |
| 191 void | |
| 192 tree_print_code::visit_decl_init_list (tree_decl_init_list& lst) | |
| 193 { | |
| 4219 | 194 tree_decl_init_list::iterator p = lst.begin (); |
| 2846 | 195 |
| 4219 | 196 while (p != lst.end ()) |
| 2846 | 197 { |
| 4219 | 198 tree_decl_elt *elt = *p++; |
| 2846 | 199 |
| 200 if (elt) | |
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201 { |
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202 elt->accept (*this); |
| 2846 | 203 |
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204 if (p != lst.end ()) |
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205 os << ", "; |
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206 } |
| 2846 | 207 } |
| 208 } | |
| 209 | |
| 210 void | |
| 2969 | 211 tree_print_code::visit_simple_for_command (tree_simple_for_command& cmd) |
| 2123 | 212 { |
| 3665 | 213 print_comment_list (cmd.leading_comment ()); |
| 214 | |
| 2123 | 215 indent (); |
| 216 | |
| 217 os << "for "; | |
| 218 | |
| 2969 | 219 tree_expression *lhs = cmd.left_hand_side (); |
| 2123 | 220 |
| 2969 | 221 if (lhs) |
| 222 lhs->accept (*this); | |
| 2123 | 223 |
| 224 os << " = "; | |
| 225 | |
| 226 tree_expression *expr = cmd.control_expr (); | |
| 227 | |
| 228 if (expr) | |
| 229 expr->accept (*this); | |
| 230 | |
| 231 newline (); | |
| 232 | |
| 233 tree_statement_list *list = cmd.body (); | |
| 234 | |
| 235 if (list) | |
| 236 { | |
| 237 increment_indent_level (); | |
| 3665 | 238 |
| 2123 | 239 list->accept (*this); |
| 3665 | 240 |
| 2123 | 241 decrement_indent_level (); |
| 242 } | |
| 243 | |
| 3665 | 244 print_indented_comment (cmd.trailing_comment ()); |
| 245 | |
| 2123 | 246 indent (); |
| 247 | |
| 248 os << "endfor"; | |
| 249 } | |
| 250 | |
| 251 void | |
| 2969 | 252 tree_print_code::visit_complex_for_command (tree_complex_for_command& cmd) |
| 253 { | |
| 3665 | 254 print_comment_list (cmd.leading_comment ()); |
| 255 | |
| 2969 | 256 indent (); |
| 257 | |
| 258 os << "for ["; | |
| 4676 | 259 nesting.push ('['); |
| 2969 | 260 |
| 261 tree_argument_list *lhs = cmd.left_hand_side (); | |
| 262 | |
| 263 if (lhs) | |
| 264 lhs->accept (*this); | |
| 265 | |
| 4676 | 266 nesting.pop (); |
| 2969 | 267 os << "] = "; |
| 268 | |
| 269 tree_expression *expr = cmd.control_expr (); | |
| 270 | |
| 271 if (expr) | |
| 272 expr->accept (*this); | |
| 273 | |
| 274 newline (); | |
| 275 | |
| 276 tree_statement_list *list = cmd.body (); | |
| 277 | |
| 278 if (list) | |
| 279 { | |
| 280 increment_indent_level (); | |
| 3665 | 281 |
| 2969 | 282 list->accept (*this); |
| 3665 | 283 |
| 2969 | 284 decrement_indent_level (); |
| 285 } | |
| 286 | |
| 3665 | 287 print_indented_comment (cmd.trailing_comment ()); |
| 288 | |
| 2969 | 289 indent (); |
| 290 | |
| 291 os << "endfor"; | |
| 292 } | |
| 293 | |
| 294 void | |
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295 tree_print_code::visit_octave_user_script (octave_user_script& fcn) |
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296 { |
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297 reset (); |
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298 |
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299 tree_statement_list *cmd_list = fcn.body (); |
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300 |
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301 if (cmd_list) |
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302 cmd_list->accept (*this); |
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303 } |
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304 |
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305 void |
| 2891 | 306 tree_print_code::visit_octave_user_function (octave_user_function& fcn) |
| 2123 | 307 { |
| 308 reset (); | |
| 309 | |
| 2891 | 310 visit_octave_user_function_header (fcn); |
| 2123 | 311 |
| 312 tree_statement_list *cmd_list = fcn.body (); | |
| 313 | |
| 314 if (cmd_list) | |
| 315 { | |
| 316 increment_indent_level (); | |
| 3665 | 317 |
| 2123 | 318 cmd_list->accept (*this); |
| 3665 | 319 |
| 2123 | 320 decrement_indent_level (); |
| 321 } | |
| 322 | |
| 2891 | 323 visit_octave_user_function_trailer (fcn); |
| 2123 | 324 } |
| 325 | |
| 326 void | |
| 2891 | 327 tree_print_code::visit_octave_user_function_header (octave_user_function& fcn) |
| 2123 | 328 { |
| 3665 | 329 octave_comment_list *leading_comment = fcn.leading_comment (); |
| 330 | |
| 331 if (leading_comment) | |
| 332 { | |
| 333 print_comment_list (leading_comment); | |
| 334 newline (); | |
| 335 } | |
| 336 | |
| 2123 | 337 indent (); |
| 338 | |
| 339 os << "function "; | |
| 340 | |
| 341 tree_parameter_list *ret_list = fcn.return_list (); | |
| 342 | |
| 343 if (ret_list) | |
| 344 { | |
| 345 bool takes_var_return = fcn.takes_var_return (); | |
| 346 | |
| 347 int len = ret_list->length (); | |
| 348 | |
| 349 if (len > 1 || takes_var_return) | |
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350 { |
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351 os << "["; |
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352 nesting.push ('['); |
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353 } |
| 2123 | 354 |
| 355 ret_list->accept (*this); | |
| 356 | |
| 357 if (takes_var_return) | |
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358 { |
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359 if (len > 0) |
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360 os << ", "; |
| 2123 | 361 |
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362 os << "varargout"; |
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363 } |
| 2123 | 364 |
| 365 if (len > 1 || takes_var_return) | |
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366 { |
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367 nesting.pop (); |
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368 os << "]"; |
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369 } |
| 2123 | 370 |
| 371 os << " = "; | |
| 372 } | |
| 373 | |
| 4748 | 374 std::string fcn_name = fcn.name (); |
| 2123 | 375 |
| 3523 | 376 os << (fcn_name.empty () ? std::string ("(empty)") : fcn_name) << " "; |
| 2123 | 377 |
| 378 tree_parameter_list *param_list = fcn.parameter_list (); | |
| 379 | |
| 380 if (param_list) | |
| 381 { | |
| 382 bool takes_varargs = fcn.takes_varargs (); | |
| 383 | |
| 384 int len = param_list->length (); | |
| 385 | |
| 386 if (len > 0 || takes_varargs) | |
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387 { |
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388 os << "("; |
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389 nesting.push ('('); |
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390 } |
| 2123 | 391 |
| 392 param_list->accept (*this); | |
| 393 | |
| 394 if (takes_varargs) | |
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395 { |
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396 if (len > 0) |
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397 os << ", "; |
| 2123 | 398 |
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399 os << "varargin"; |
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400 } |
| 2123 | 401 |
| 402 if (len > 0 || takes_varargs) | |
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403 { |
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404 nesting.pop (); |
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405 os << ")"; |
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406 newline (); |
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407 } |
| 2123 | 408 } |
| 409 else | |
| 410 { | |
| 411 os << "()"; | |
| 412 newline (); | |
| 413 } | |
| 414 } | |
| 415 | |
| 416 void | |
| 3665 | 417 tree_print_code::visit_octave_user_function_trailer (octave_user_function& fcn) |
| 2123 | 418 { |
| 3665 | 419 print_indented_comment (fcn.trailing_comment ()); |
| 420 | |
| 2123 | 421 newline (); |
| 422 } | |
| 423 | |
| 424 void | |
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425 tree_print_code::visit_function_def (tree_function_def& fdef) |
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426 { |
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427 indent (); |
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428 |
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429 octave_value fcn = fdef.function (); |
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430 |
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431 octave_function *f = fcn.function_value (); |
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432 |
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433 if (f) |
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434 f->accept (*this); |
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435 } |
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436 |
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437 void |
| 2123 | 438 tree_print_code::visit_identifier (tree_identifier& id) |
| 439 { | |
| 440 indent (); | |
| 441 | |
| 2961 | 442 print_parens (id, "("); |
| 2123 | 443 |
| 3523 | 444 std::string nm = id.name (); |
| 445 os << (nm.empty () ? std::string ("(empty)") : nm); | |
| 2123 | 446 |
| 2961 | 447 print_parens (id, ")"); |
| 2123 | 448 } |
| 449 | |
| 450 void | |
| 451 tree_print_code::visit_if_clause (tree_if_clause& cmd) | |
| 452 { | |
| 453 tree_expression *expr = cmd.condition (); | |
| 454 | |
| 455 if (expr) | |
| 456 expr->accept (*this); | |
| 457 | |
| 458 newline (); | |
| 459 | |
| 460 tree_statement_list *list = cmd.commands (); | |
| 461 | |
| 462 if (list) | |
| 463 { | |
| 3665 | 464 increment_indent_level (); |
| 465 | |
| 2123 | 466 list->accept (*this); |
| 467 | |
| 468 decrement_indent_level (); | |
| 469 } | |
| 470 } | |
| 471 | |
| 472 void | |
| 473 tree_print_code::visit_if_command (tree_if_command& cmd) | |
| 474 { | |
| 3665 | 475 print_comment_list (cmd.leading_comment ()); |
| 476 | |
| 2123 | 477 indent (); |
| 478 | |
| 479 os << "if "; | |
| 480 | |
| 481 tree_if_command_list *list = cmd.cmd_list (); | |
| 482 | |
| 483 if (list) | |
| 484 list->accept (*this); | |
| 485 | |
| 3665 | 486 print_indented_comment (cmd.trailing_comment ()); |
| 487 | |
| 2123 | 488 indent (); |
| 489 | |
| 490 os << "endif"; | |
| 491 } | |
| 492 | |
| 493 void | |
| 494 tree_print_code::visit_if_command_list (tree_if_command_list& lst) | |
| 495 { | |
| 4219 | 496 tree_if_command_list::iterator p = lst.begin (); |
| 2123 | 497 |
| 498 bool first_elt = true; | |
| 499 | |
| 4219 | 500 while (p != lst.end ()) |
| 2123 | 501 { |
| 4219 | 502 tree_if_clause *elt = *p++; |
| 2123 | 503 |
| 504 if (elt) | |
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505 { |
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506 if (! first_elt) |
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507 { |
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508 print_indented_comment (elt->leading_comment ()); |
| 3665 | 509 |
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510 indent (); |
| 2123 | 511 |
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512 if (elt->is_else_clause ()) |
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513 os << "else"; |
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514 else |
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515 os << "elseif "; |
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516 } |
| 2123 | 517 |
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518 elt->accept (*this); |
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519 } |
| 2123 | 520 |
| 521 first_elt = false; | |
| 522 } | |
| 523 } | |
| 524 | |
| 525 void | |
| 526 tree_print_code::visit_index_expression (tree_index_expression& expr) | |
| 527 { | |
| 528 indent (); | |
| 529 | |
| 2961 | 530 print_parens (expr, "("); |
| 2123 | 531 |
| 3665 | 532 bool expr_has_parens = false; |
| 533 | |
| 3010 | 534 tree_expression *e = expr.expression (); |
| 2123 | 535 |
| 2969 | 536 if (e) |
| 3665 | 537 { |
| 538 e->accept (*this); | |
| 539 | |
| 540 expr_has_parens = e->is_postfix_indexed (); | |
| 541 } | |
| 2123 | 542 |
| 4219 | 543 std::list<tree_argument_list *> arg_lists = expr.arg_lists (); |
| 3933 | 544 std::string type_tags = expr.type_tags (); |
| 4219 | 545 std::list<string_vector> arg_names = expr.arg_names (); |
| 2123 | 546 |
| 3933 | 547 int n = type_tags.length (); |
| 548 | |
| 4219 | 549 std::list<tree_argument_list *>::iterator p_arg_lists = arg_lists.begin (); |
| 550 std::list<string_vector>::iterator p_arg_names = arg_names.begin (); | |
| 3933 | 551 |
| 552 for (int i = 0; i < n; i++) | |
| 2123 | 553 { |
| 3933 | 554 switch (type_tags[i]) |
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555 { |
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556 case '(': |
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557 { |
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558 char nc = nesting.top (); |
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559 if ((nc == '[' || nc == '{') && expr.paren_count () == 0) |
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560 os << "("; |
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561 else |
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562 os << " ("; |
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563 nesting.push ('('); |
| 4676 | 564 |
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565 tree_argument_list *l = *p_arg_lists; |
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566 if (l) |
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567 l->accept (*this); |
| 4676 | 568 |
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569 nesting.pop (); |
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570 os << ")"; |
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571 } |
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572 break; |
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573 |
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574 case '{': |
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575 { |
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576 char nc = nesting.top (); |
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577 if ((nc == '[' || nc == '{') && expr.paren_count () == 0) |
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578 os << "{"; |
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579 else |
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580 os << " {"; |
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581 // We only care about whitespace inside [] and {} when we |
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582 // are defining matrix and cell objects, not when indexing. |
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583 nesting.push ('('); |
| 4676 | 584 |
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585 tree_argument_list *l = *p_arg_lists; |
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586 if (l) |
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587 l->accept (*this); |
| 4676 | 588 |
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589 nesting.pop (); |
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590 os << "}"; |
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591 } |
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592 break; |
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593 |
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594 case '.': |
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595 { |
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596 string_vector nm = *p_arg_names; |
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597 assert (nm.length () == 1); |
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598 os << "." << nm(0); |
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599 } |
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600 break; |
| 3933 | 601 |
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602 default: |
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603 panic_impossible (); |
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604 } |
| 3933 | 605 |
| 4219 | 606 p_arg_lists++; |
| 607 p_arg_names++; | |
| 3930 | 608 } |
| 2123 | 609 |
| 2961 | 610 print_parens (expr, ")"); |
| 2123 | 611 } |
| 612 | |
| 613 void | |
| 614 tree_print_code::visit_matrix (tree_matrix& lst) | |
| 615 { | |
| 616 indent (); | |
| 617 | |
| 2961 | 618 print_parens (lst, "("); |
| 2123 | 619 |
| 620 os << "["; | |
| 4676 | 621 nesting.push ('['); |
| 2123 | 622 |
| 4219 | 623 tree_matrix::iterator p = lst.begin (); |
| 2123 | 624 |
| 4219 | 625 while (p != lst.end ()) |
| 2123 | 626 { |
| 4219 | 627 tree_argument_list *elt = *p++; |
| 2123 | 628 |
| 629 if (elt) | |
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630 { |
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631 elt->accept (*this); |
| 2123 | 632 |
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633 if (p != lst.end ()) |
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634 os << "; "; |
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635 } |
| 2123 | 636 } |
| 637 | |
| 4676 | 638 nesting.pop (); |
| 2123 | 639 os << "]"; |
| 640 | |
| 2961 | 641 print_parens (lst, ")"); |
| 2123 | 642 } |
| 643 | |
| 644 void | |
| 3351 | 645 tree_print_code::visit_cell (tree_cell& lst) |
| 646 { | |
| 647 indent (); | |
| 648 | |
| 649 print_parens (lst, "("); | |
| 650 | |
| 651 os << "{"; | |
| 4676 | 652 nesting.push ('{'); |
| 3351 | 653 |
| 4219 | 654 tree_cell::iterator p = lst.begin (); |
| 3351 | 655 |
| 4219 | 656 while (p != lst.end ()) |
| 3351 | 657 { |
| 4219 | 658 tree_argument_list *elt = *p++; |
| 3351 | 659 |
| 660 if (elt) | |
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661 { |
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662 elt->accept (*this); |
| 3351 | 663 |
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664 if (p != lst.end ()) |
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665 os << "; "; |
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666 } |
| 3351 | 667 } |
| 668 | |
| 4676 | 669 nesting.pop (); |
| 3351 | 670 os << "}"; |
| 671 | |
| 672 print_parens (lst, ")"); | |
| 673 } | |
| 674 | |
| 675 void | |
| 2969 | 676 tree_print_code::visit_multi_assignment (tree_multi_assignment& expr) |
| 2123 | 677 { |
| 678 indent (); | |
| 679 | |
| 2961 | 680 print_parens (expr, "("); |
| 2123 | 681 |
| 2969 | 682 tree_argument_list *lhs = expr.left_hand_side (); |
| 2123 | 683 |
| 684 if (lhs) | |
| 685 { | |
| 686 int len = lhs->length (); | |
| 687 | |
| 688 if (len > 1) | |
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689 { |
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690 os << "["; |
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691 nesting.push ('['); |
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692 } |
| 2123 | 693 |
| 694 lhs->accept (*this); | |
| 695 | |
| 696 if (len > 1) | |
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697 { |
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698 nesting.pop (); |
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699 os << "]"; |
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700 } |
| 2123 | 701 } |
| 702 | |
| 3208 | 703 os << " " << expr.oper () << " "; |
| 2123 | 704 |
| 2969 | 705 tree_expression *rhs = expr.right_hand_side (); |
| 2123 | 706 |
| 707 if (rhs) | |
| 708 rhs->accept (*this); | |
| 709 | |
| 2961 | 710 print_parens (expr, ")"); |
| 2123 | 711 } |
| 712 | |
| 713 void | |
| 2620 | 714 tree_print_code::visit_no_op_command (tree_no_op_command& cmd) |
| 715 { | |
| 716 indent (); | |
| 717 | |
| 718 os << cmd.original_command (); | |
| 719 } | |
| 720 | |
| 721 void | |
| 2372 | 722 tree_print_code::visit_constant (tree_constant& val) |
| 2123 | 723 { |
| 724 indent (); | |
| 725 | |
| 2961 | 726 print_parens (val, "("); |
| 2123 | 727 |
| 2942 | 728 val.print_raw (os, true, print_original_text); |
| 2123 | 729 |
| 2961 | 730 print_parens (val, ")"); |
| 2123 | 731 } |
| 732 | |
| 733 void | |
| 4342 | 734 tree_print_code::visit_fcn_handle (tree_fcn_handle& fh) |
| 735 { | |
| 736 indent (); | |
| 737 | |
| 738 print_parens (fh, "("); | |
| 739 | |
| 740 fh.print_raw (os, true, print_original_text); | |
| 741 | |
| 742 print_parens (fh, ")"); | |
| 743 } | |
| 744 | |
| 745 void | |
| 2123 | 746 tree_print_code::visit_parameter_list (tree_parameter_list& lst) |
| 747 { | |
| 4219 | 748 tree_parameter_list::iterator p = lst.begin (); |
| 2123 | 749 |
| 4219 | 750 while (p != lst.end ()) |
| 2123 | 751 { |
| 6215 | 752 tree_decl_elt *elt = *p++; |
| 2123 | 753 |
| 754 if (elt) | |
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755 { |
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756 elt->accept (*this); |
| 2123 | 757 |
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758 if (p != lst.end ()) |
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759 os << ", "; |
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760 } |
| 2123 | 761 } |
| 762 } | |
| 763 | |
| 764 void | |
| 765 tree_print_code::visit_postfix_expression (tree_postfix_expression& expr) | |
| 766 { | |
| 767 indent (); | |
| 768 | |
| 2961 | 769 print_parens (expr, "("); |
| 2123 | 770 |
| 2960 | 771 tree_expression *e = expr.operand (); |
| 2123 | 772 |
| 2960 | 773 if (e) |
| 774 e->accept (*this); | |
| 2123 | 775 |
| 776 os << expr.oper (); | |
| 777 | |
| 2961 | 778 print_parens (expr, ")"); |
| 2123 | 779 } |
| 780 | |
| 781 void | |
| 782 tree_print_code::visit_prefix_expression (tree_prefix_expression& expr) | |
| 783 { | |
| 784 indent (); | |
| 785 | |
| 2961 | 786 print_parens (expr, "("); |
| 2123 | 787 |
| 788 os << expr.oper (); | |
| 789 | |
| 2960 | 790 tree_expression *e = expr.operand (); |
| 2123 | 791 |
| 2960 | 792 if (e) |
| 793 e->accept (*this); | |
| 2123 | 794 |
| 2961 | 795 print_parens (expr, ")"); |
| 2123 | 796 } |
| 797 | |
| 798 void | |
| 4207 | 799 tree_print_code::visit_return_command (tree_return_command&) |
| 2123 | 800 { |
| 801 indent (); | |
| 802 | |
| 803 os << "return"; | |
| 804 } | |
| 805 | |
| 806 void | |
| 807 tree_print_code::visit_return_list (tree_return_list& lst) | |
| 808 { | |
| 4219 | 809 tree_return_list::iterator p = lst.begin (); |
| 2123 | 810 |
| 4219 | 811 while (p != lst.end ()) |
| 2123 | 812 { |
| 4219 | 813 tree_index_expression *elt = *p++; |
| 2123 | 814 |
| 815 if (elt) | |
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816 { |
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817 elt->accept (*this); |
| 2123 | 818 |
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819 if (p != lst.end ()) |
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820 os << ", "; |
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821 } |
| 2123 | 822 } |
| 823 } | |
| 824 | |
| 825 void | |
| 2969 | 826 tree_print_code::visit_simple_assignment (tree_simple_assignment& expr) |
| 2123 | 827 { |
| 828 indent (); | |
| 829 | |
| 2961 | 830 print_parens (expr, "("); |
| 2123 | 831 |
| 2969 | 832 tree_expression *lhs = expr.left_hand_side (); |
| 2123 | 833 |
| 2969 | 834 if (lhs) |
| 835 lhs->accept (*this); | |
| 2123 | 836 |
| 2969 | 837 os << " " << expr.oper () << " "; |
| 2123 | 838 |
| 839 tree_expression *rhs = expr.right_hand_side (); | |
| 840 | |
| 841 if (rhs) | |
| 842 rhs->accept (*this); | |
| 843 | |
| 2961 | 844 print_parens (expr, ")"); |
| 2123 | 845 } |
| 846 | |
| 847 void | |
| 848 tree_print_code::visit_statement (tree_statement& stmt) | |
| 849 { | |
| 3665 | 850 print_comment_list (stmt.comment_text ()); |
| 851 | |
| 2123 | 852 tree_command *cmd = stmt.command (); |
| 853 | |
| 854 if (cmd) | |
| 855 { | |
| 856 cmd->accept (*this); | |
| 857 | |
| 858 if (! stmt.print_result ()) | |
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859 { |
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860 os << ";"; |
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861 newline (" "); |
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862 } |
| 4980 | 863 else |
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864 newline (); |
| 2123 | 865 } |
| 866 else | |
| 867 { | |
| 868 tree_expression *expr = stmt.expression (); | |
| 869 | |
| 870 if (expr) | |
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871 { |
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872 expr->accept (*this); |
| 2123 | 873 |
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874 if (! stmt.print_result ()) |
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875 { |
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876 os << ";"; |
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877 newline (" "); |
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878 } |
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879 else |
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880 newline (); |
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881 } |
| 2123 | 882 } |
| 883 } | |
| 884 | |
| 885 void | |
| 886 tree_print_code::visit_statement_list (tree_statement_list& lst) | |
| 887 { | |
| 4219 | 888 for (tree_statement_list::iterator p = lst.begin (); p != lst.end (); p++) |
| 2123 | 889 { |
| 4219 | 890 tree_statement *elt = *p; |
| 2123 | 891 |
| 892 if (elt) | |
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893 elt->accept (*this); |
| 2123 | 894 } |
| 895 } | |
| 896 | |
| 897 void | |
| 2846 | 898 tree_print_code::visit_switch_case (tree_switch_case& cs) |
| 899 { | |
| 3665 | 900 print_comment_list (cs.leading_comment ()); |
| 901 | |
| 2846 | 902 indent (); |
| 903 | |
| 904 if (cs.is_default_case ()) | |
| 905 os << "otherwise"; | |
| 906 else | |
| 907 os << "case "; | |
| 908 | |
| 909 tree_expression *label = cs.case_label (); | |
| 910 | |
| 911 if (label) | |
| 912 label->accept (*this); | |
| 913 | |
| 914 newline (); | |
| 915 | |
| 916 tree_statement_list *list = cs.commands (); | |
| 917 | |
| 918 if (list) | |
| 919 { | |
| 3665 | 920 increment_indent_level (); |
| 921 | |
| 2846 | 922 list->accept (*this); |
| 923 | |
| 3665 | 924 newline (); |
| 925 | |
| 2846 | 926 decrement_indent_level (); |
| 927 } | |
| 928 } | |
| 929 | |
| 930 void | |
| 931 tree_print_code::visit_switch_case_list (tree_switch_case_list& lst) | |
| 932 { | |
| 4219 | 933 tree_switch_case_list::iterator p = lst.begin (); |
| 2846 | 934 |
| 4219 | 935 while (p != lst.end ()) |
| 2846 | 936 { |
| 4219 | 937 tree_switch_case *elt = *p++; |
| 2846 | 938 |
| 939 if (elt) | |
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940 elt->accept (*this); |
| 2846 | 941 } |
| 942 } | |
| 943 | |
| 944 void | |
| 945 tree_print_code::visit_switch_command (tree_switch_command& cmd) | |
| 946 { | |
| 3665 | 947 print_comment_list (cmd.leading_comment ()); |
| 948 | |
| 2846 | 949 indent (); |
| 950 | |
| 951 os << "switch "; | |
| 952 | |
| 953 tree_expression *expr = cmd.switch_value (); | |
| 954 | |
| 955 if (expr) | |
| 956 expr->accept (*this); | |
| 957 | |
| 958 newline (); | |
| 959 | |
| 960 tree_switch_case_list *list = cmd.case_list (); | |
| 961 | |
| 962 if (list) | |
| 3665 | 963 { |
| 964 increment_indent_level (); | |
| 965 | |
| 966 list->accept (*this); | |
| 967 | |
| 968 decrement_indent_level (); | |
| 969 } | |
| 970 | |
| 971 print_indented_comment (cmd.leading_comment ()); | |
| 2846 | 972 |
| 973 indent (); | |
| 974 | |
| 975 os << "endswitch"; | |
| 976 } | |
| 977 | |
| 978 void | |
| 2123 | 979 tree_print_code::visit_try_catch_command (tree_try_catch_command& cmd) |
| 980 { | |
| 3665 | 981 print_comment_list (cmd.leading_comment ()); |
| 982 | |
| 2123 | 983 indent (); |
| 984 | |
| 3665 | 985 os << "try"; |
| 2123 | 986 |
| 987 newline (); | |
| 988 | |
| 989 tree_statement_list *try_code = cmd.body (); | |
| 990 | |
| 991 if (try_code) | |
| 992 { | |
| 993 increment_indent_level (); | |
| 3665 | 994 |
| 2123 | 995 try_code->accept (*this); |
| 3665 | 996 |
| 2123 | 997 decrement_indent_level (); |
| 998 } | |
| 999 | |
| 3665 | 1000 print_indented_comment (cmd.middle_comment ()); |
| 1001 | |
| 2123 | 1002 indent (); |
| 1003 | |
| 1004 os << "catch"; | |
| 1005 | |
| 1006 newline (); | |
| 1007 | |
| 1008 tree_statement_list *catch_code = cmd.cleanup (); | |
| 1009 | |
| 1010 if (catch_code) | |
| 1011 { | |
| 1012 increment_indent_level (); | |
| 3665 | 1013 |
| 2123 | 1014 catch_code->accept (*this); |
| 3665 | 1015 |
| 2123 | 1016 decrement_indent_level (); |
| 1017 } | |
| 1018 | |
| 3665 | 1019 print_indented_comment (cmd.trailing_comment ()); |
| 1020 | |
| 2123 | 1021 indent (); |
| 1022 | |
| 1023 os << "end_try_catch"; | |
| 1024 } | |
| 1025 | |
| 1026 void | |
| 1027 tree_print_code::visit_unwind_protect_command | |
| 1028 (tree_unwind_protect_command& cmd) | |
| 1029 { | |
| 3665 | 1030 print_comment_list (cmd.leading_comment ()); |
| 1031 | |
| 2123 | 1032 indent (); |
| 1033 | |
| 1034 os << "unwind_protect"; | |
| 1035 | |
| 1036 newline (); | |
| 1037 | |
| 1038 tree_statement_list *unwind_protect_code = cmd.body (); | |
| 1039 | |
| 1040 if (unwind_protect_code) | |
| 1041 { | |
| 1042 increment_indent_level (); | |
| 3665 | 1043 |
| 2123 | 1044 unwind_protect_code->accept (*this); |
| 3665 | 1045 |
| 2123 | 1046 decrement_indent_level (); |
| 1047 } | |
| 1048 | |
| 3665 | 1049 print_indented_comment (cmd.middle_comment ()); |
| 1050 | |
| 2123 | 1051 indent (); |
| 1052 | |
| 3478 | 1053 os << "unwind_protect_cleanup"; |
| 2123 | 1054 |
| 1055 newline (); | |
| 1056 | |
| 1057 tree_statement_list *cleanup_code = cmd.cleanup (); | |
| 1058 | |
| 1059 if (cleanup_code) | |
| 1060 { | |
| 1061 increment_indent_level (); | |
| 3665 | 1062 |
| 2123 | 1063 cleanup_code->accept (*this); |
| 3665 | 1064 |
| 2123 | 1065 decrement_indent_level (); |
| 1066 } | |
| 1067 | |
| 3665 | 1068 print_indented_comment (cmd.trailing_comment ()); |
| 1069 | |
| 2123 | 1070 indent (); |
| 1071 | |
| 1072 os << "end_unwind_protect"; | |
| 1073 } | |
| 1074 | |
| 1075 void | |
| 1076 tree_print_code::visit_while_command (tree_while_command& cmd) | |
| 1077 { | |
| 3665 | 1078 print_comment_list (cmd.leading_comment ()); |
| 1079 | |
| 2123 | 1080 indent (); |
| 1081 | |
| 1082 os << "while "; | |
| 1083 | |
| 1084 tree_expression *expr = cmd.condition (); | |
| 1085 | |
| 1086 if (expr) | |
| 1087 expr->accept (*this); | |
| 1088 | |
| 1089 newline (); | |
| 1090 | |
| 1091 tree_statement_list *list = cmd.body (); | |
| 1092 | |
| 1093 if (list) | |
| 1094 { | |
| 1095 increment_indent_level (); | |
| 3665 | 1096 |
| 2123 | 1097 list->accept (*this); |
| 3665 | 1098 |
| 2123 | 1099 decrement_indent_level (); |
| 1100 } | |
| 1101 | |
| 3665 | 1102 print_indented_comment (cmd.trailing_comment ()); |
| 1103 | |
| 2123 | 1104 indent (); |
| 1105 | |
| 1106 os << "endwhile"; | |
| 1107 } | |
| 1108 | |
| 3484 | 1109 void |
| 1110 tree_print_code::visit_do_until_command (tree_do_until_command& cmd) | |
| 1111 { | |
| 3665 | 1112 print_comment_list (cmd.leading_comment ()); |
| 1113 | |
| 3484 | 1114 indent (); |
| 1115 | |
| 1116 os << "do"; | |
| 1117 | |
| 1118 newline (); | |
| 1119 | |
| 1120 tree_statement_list *list = cmd.body (); | |
| 1121 | |
| 1122 if (list) | |
| 1123 { | |
| 1124 increment_indent_level (); | |
| 3665 | 1125 |
| 3484 | 1126 list->accept (*this); |
| 3665 | 1127 |
| 3484 | 1128 decrement_indent_level (); |
| 1129 } | |
| 1130 | |
| 3665 | 1131 print_indented_comment (cmd.trailing_comment ()); |
| 1132 | |
| 3484 | 1133 indent (); |
| 1134 | |
| 1135 os << "until"; | |
| 1136 | |
| 1137 tree_expression *expr = cmd.condition (); | |
| 1138 | |
| 1139 if (expr) | |
| 1140 expr->accept (*this); | |
| 1141 | |
| 1142 newline (); | |
| 1143 } | |
| 1144 | |
|
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1145 void |
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1146 tree_print_code::print_fcn_handle_body (tree_statement_list *b) |
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1147 { |
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1148 if (b) |
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1149 { |
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1150 assert (b->length () == 1); |
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1151 |
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1152 tree_statement *s = b->front (); |
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1153 |
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1154 if (s) |
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1155 { |
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1156 if (s->is_expression ()) |
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1157 { |
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1158 tree_expression *e = s->expression (); |
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1159 |
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1160 if (e) |
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1161 { |
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1162 suppress_newlines++; |
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1163 e->accept (*this); |
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1164 suppress_newlines--; |
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1165 } |
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1166 } |
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1167 else |
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1168 { |
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1169 tree_command *c = s->command (); |
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1170 |
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1171 suppress_newlines++; |
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1172 c->accept (*this); |
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1173 suppress_newlines--; |
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1174 } |
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1175 } |
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1176 } |
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1177 } |
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1178 |
| 2123 | 1179 // Each print_code() function should call this before printing |
| 1180 // anything. | |
| 1181 // | |
| 1182 // This doesn't need to be fast, but isn't there a better way? | |
| 1183 | |
| 1184 void | |
| 1185 tree_print_code::indent (void) | |
| 1186 { | |
| 1187 assert (curr_print_indent_level >= 0); | |
| 2900 | 1188 |
|
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1189 if (beginning_of_line) |
| 4980 | 1190 { |
|
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1191 os << prefix; |
| 2900 | 1192 |
|
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1193 for (int i = 0; i < curr_print_indent_level; i++) |
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1194 os << " "; |
| 4980 | 1195 |
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1196 beginning_of_line = false; |
| 2123 | 1197 } |
| 1198 } | |
| 1199 | |
| 1200 // All print_code() functions should use this to print new lines. | |
| 1201 | |
| 1202 void | |
| 4980 | 1203 tree_print_code::newline (const char *alt_txt) |
| 2123 | 1204 { |
|
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1205 if (suppress_newlines) |
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1206 os << alt_txt; |
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1207 else |
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1208 { |
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1209 os << "\n"; |
| 2123 | 1210 |
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1211 beginning_of_line = true; |
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1212 } |
| 2123 | 1213 } |
| 1214 | |
| 1215 // For ressetting print_code state. | |
| 1216 | |
| 1217 void | |
| 1218 tree_print_code::reset (void) | |
| 1219 { | |
| 1220 beginning_of_line = true; | |
| 1221 curr_print_indent_level = 0; | |
| 4676 | 1222 while (nesting.top () != 'n') |
| 1223 nesting.pop (); | |
| 2123 | 1224 } |
| 1225 | |
| 2961 | 1226 void |
| 1227 tree_print_code::print_parens (const tree_expression& expr, const char *txt) | |
| 1228 { | |
| 1229 int n = expr.paren_count (); | |
| 1230 | |
| 1231 for (int i = 0; i < n; i++) | |
| 1232 os << txt; | |
| 1233 } | |
| 1234 | |
| 3665 | 1235 void |
| 1236 tree_print_code::print_comment_elt (const octave_comment_elt& elt) | |
| 1237 { | |
| 1238 bool printed_something = false; | |
| 1239 | |
| 1240 bool prev_char_was_newline = false; | |
| 1241 | |
| 3769 | 1242 std::string comment = elt.text (); |
| 3665 | 1243 |
| 1244 size_t len = comment.length (); | |
| 1245 | |
| 1246 size_t i = 0; | |
| 1247 | |
| 1248 while (i < len && comment[i++] == '\n') | |
| 1249 ; /* Skip leading new lines. */ | |
| 1250 i--; | |
| 1251 | |
| 1252 while (i < len) | |
| 1253 { | |
| 1254 char c = comment[i++]; | |
| 1255 | |
| 1256 if (c == '\n') | |
|
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1257 { |
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1258 if (prev_char_was_newline) |
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1259 os << "##"; |
| 3665 | 1260 |
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1261 newline (); |
| 3665 | 1262 |
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1263 prev_char_was_newline = true; |
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1264 } |
| 3665 | 1265 else |
|
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1266 { |
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1267 if (beginning_of_line) |
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1268 { |
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1269 printed_something = true; |
| 3665 | 1270 |
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1271 indent (); |
| 3665 | 1272 |
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1273 os << "##"; |
| 3665 | 1274 |
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1275 if (! (isspace (c) || c == '!')) |
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1276 os << " "; |
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1277 } |
| 3665 | 1278 |
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1279 os << static_cast<char> (c); |
| 3665 | 1280 |
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1281 prev_char_was_newline = false; |
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1282 } |
| 3665 | 1283 } |
| 1284 | |
| 1285 if (printed_something && ! beginning_of_line) | |
| 1286 newline (); | |
| 1287 } | |
| 1288 | |
| 1289 void | |
| 1290 tree_print_code::print_comment_list (octave_comment_list *comment_list) | |
| 1291 { | |
| 1292 if (comment_list) | |
| 1293 { | |
| 4219 | 1294 octave_comment_list::iterator p = comment_list->begin (); |
| 3665 | 1295 |
| 4219 | 1296 while (p != comment_list->end ()) |
|
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1297 { |
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1298 octave_comment_elt elt = *p++; |
| 3665 | 1299 |
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1300 print_comment_elt (elt); |
| 3665 | 1301 |
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1302 if (p != comment_list->end ()) |
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1303 newline (); |
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1304 } |
| 3665 | 1305 } |
| 1306 } | |
| 1307 | |
| 1308 void | |
| 1309 tree_print_code::print_indented_comment (octave_comment_list *comment_list) | |
| 1310 { | |
| 1311 increment_indent_level (); | |
| 1312 | |
| 1313 print_comment_list (comment_list); | |
| 1314 | |
| 1315 decrement_indent_level (); | |
| 1316 } |