Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 1 | /************************************************* |
| 2 | * Perl-Compatible Regular Expressions * |
| 3 | *************************************************/ |
| 4 | |
| 5 | /* PCRE is a library of functions to support regular expressions whose syntax |
| 6 | and semantics are as close as possible to those of the Perl 5 language. |
| 7 | |
| 8 | Written by Philip Hazel |
| 9 | Original API code Copyright (c) 1997-2012 University of Cambridge |
Elliott Hughes | 0c26e19 | 2019-08-07 12:24:46 -0700 | [diff] [blame] | 10 | New API code Copyright (c) 2016-2018 University of Cambridge |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 11 | |
| 12 | ----------------------------------------------------------------------------- |
| 13 | Redistribution and use in source and binary forms, with or without |
| 14 | modification, are permitted provided that the following conditions are met: |
| 15 | |
| 16 | * Redistributions of source code must retain the above copyright notice, |
| 17 | this list of conditions and the following disclaimer. |
| 18 | |
| 19 | * Redistributions in binary form must reproduce the above copyright |
| 20 | notice, this list of conditions and the following disclaimer in the |
| 21 | documentation and/or other materials provided with the distribution. |
| 22 | |
| 23 | * Neither the name of the University of Cambridge nor the names of its |
| 24 | contributors may be used to endorse or promote products derived from |
| 25 | this software without specific prior written permission. |
| 26 | |
| 27 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 28 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 29 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 30 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| 31 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 32 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 33 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 34 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 35 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 36 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 37 | POSSIBILITY OF SUCH DAMAGE. |
| 38 | ----------------------------------------------------------------------------- |
| 39 | */ |
| 40 | |
| 41 | |
| 42 | #ifdef HAVE_CONFIG_H |
| 43 | #include "config.h" |
| 44 | #endif |
| 45 | |
| 46 | #include "pcre2_internal.h" |
| 47 | |
| 48 | |
| 49 | |
| 50 | /************************************************* |
| 51 | * Default malloc/free functions * |
| 52 | *************************************************/ |
| 53 | |
| 54 | /* Ignore the "user data" argument in each case. */ |
| 55 | |
| 56 | static void *default_malloc(size_t size, void *data) |
| 57 | { |
| 58 | (void)data; |
| 59 | return malloc(size); |
| 60 | } |
| 61 | |
| 62 | |
| 63 | static void default_free(void *block, void *data) |
| 64 | { |
| 65 | (void)data; |
| 66 | free(block); |
| 67 | } |
| 68 | |
| 69 | |
| 70 | |
| 71 | /************************************************* |
| 72 | * Get a block and save memory control * |
| 73 | *************************************************/ |
| 74 | |
| 75 | /* This internal function is called to get a block of memory in which the |
| 76 | memory control data is to be stored at the start for future use. |
| 77 | |
| 78 | Arguments: |
| 79 | size amount of memory required |
| 80 | memctl pointer to a memctl block or NULL |
| 81 | |
| 82 | Returns: pointer to memory or NULL on failure |
| 83 | */ |
| 84 | |
| 85 | extern void * |
| 86 | PRIV(memctl_malloc)(size_t size, pcre2_memctl *memctl) |
| 87 | { |
| 88 | pcre2_memctl *newmemctl; |
| 89 | void *yield = (memctl == NULL)? malloc(size) : |
| 90 | memctl->malloc(size, memctl->memory_data); |
| 91 | if (yield == NULL) return NULL; |
| 92 | newmemctl = (pcre2_memctl *)yield; |
| 93 | if (memctl == NULL) |
| 94 | { |
| 95 | newmemctl->malloc = default_malloc; |
| 96 | newmemctl->free = default_free; |
| 97 | newmemctl->memory_data = NULL; |
| 98 | } |
| 99 | else *newmemctl = *memctl; |
| 100 | return yield; |
| 101 | } |
| 102 | |
| 103 | |
| 104 | |
| 105 | /************************************************* |
| 106 | * Create and initialize contexts * |
| 107 | *************************************************/ |
| 108 | |
| 109 | /* Initializing for compile and match contexts is done in separate, private |
| 110 | functions so that these can be called from functions such as pcre2_compile() |
| 111 | when an external context is not supplied. The initializing functions have an |
| 112 | option to set up default memory management. */ |
| 113 | |
| 114 | PCRE2_EXP_DEFN pcre2_general_context * PCRE2_CALL_CONVENTION |
| 115 | pcre2_general_context_create(void *(*private_malloc)(size_t, void *), |
| 116 | void (*private_free)(void *, void *), void *memory_data) |
| 117 | { |
| 118 | pcre2_general_context *gcontext; |
| 119 | if (private_malloc == NULL) private_malloc = default_malloc; |
| 120 | if (private_free == NULL) private_free = default_free; |
| 121 | gcontext = private_malloc(sizeof(pcre2_real_general_context), memory_data); |
| 122 | if (gcontext == NULL) return NULL; |
| 123 | gcontext->memctl.malloc = private_malloc; |
| 124 | gcontext->memctl.free = private_free; |
| 125 | gcontext->memctl.memory_data = memory_data; |
| 126 | return gcontext; |
| 127 | } |
| 128 | |
| 129 | |
| 130 | /* A default compile context is set up to save having to initialize at run time |
| 131 | when no context is supplied to the compile function. */ |
| 132 | |
| 133 | const pcre2_compile_context PRIV(default_compile_context) = { |
| 134 | { default_malloc, default_free, NULL }, /* Default memory handling */ |
| 135 | NULL, /* Stack guard */ |
| 136 | NULL, /* Stack guard data */ |
| 137 | PRIV(default_tables), /* Character tables */ |
| 138 | PCRE2_UNSET, /* Max pattern length */ |
| 139 | BSR_DEFAULT, /* Backslash R default */ |
| 140 | NEWLINE_DEFAULT, /* Newline convention */ |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 141 | PARENS_NEST_LIMIT, /* As it says */ |
| 142 | 0 }; /* Extra options */ |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 143 | |
| 144 | /* The create function copies the default into the new memory, but must |
| 145 | override the default memory handling functions if a gcontext was provided. */ |
| 146 | |
| 147 | PCRE2_EXP_DEFN pcre2_compile_context * PCRE2_CALL_CONVENTION |
| 148 | pcre2_compile_context_create(pcre2_general_context *gcontext) |
| 149 | { |
| 150 | pcre2_compile_context *ccontext = PRIV(memctl_malloc)( |
| 151 | sizeof(pcre2_real_compile_context), (pcre2_memctl *)gcontext); |
| 152 | if (ccontext == NULL) return NULL; |
| 153 | *ccontext = PRIV(default_compile_context); |
| 154 | if (gcontext != NULL) |
| 155 | *((pcre2_memctl *)ccontext) = *((pcre2_memctl *)gcontext); |
| 156 | return ccontext; |
| 157 | } |
| 158 | |
| 159 | |
| 160 | /* A default match context is set up to save having to initialize at run time |
| 161 | when no context is supplied to a match function. */ |
| 162 | |
| 163 | const pcre2_match_context PRIV(default_match_context) = { |
| 164 | { default_malloc, default_free, NULL }, |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 165 | #ifdef SUPPORT_JIT |
Elliott Hughes | 0c26e19 | 2019-08-07 12:24:46 -0700 | [diff] [blame] | 166 | NULL, /* JIT callback */ |
| 167 | NULL, /* JIT callback data */ |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 168 | #endif |
Elliott Hughes | 0c26e19 | 2019-08-07 12:24:46 -0700 | [diff] [blame] | 169 | NULL, /* Callout function */ |
| 170 | NULL, /* Callout data */ |
| 171 | NULL, /* Substitute callout function */ |
| 172 | NULL, /* Substitute callout data */ |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 173 | PCRE2_UNSET, /* Offset limit */ |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 174 | HEAP_LIMIT, |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 175 | MATCH_LIMIT, |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 176 | MATCH_LIMIT_DEPTH }; |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 177 | |
| 178 | /* The create function copies the default into the new memory, but must |
| 179 | override the default memory handling functions if a gcontext was provided. */ |
| 180 | |
| 181 | PCRE2_EXP_DEFN pcre2_match_context * PCRE2_CALL_CONVENTION |
| 182 | pcre2_match_context_create(pcre2_general_context *gcontext) |
| 183 | { |
| 184 | pcre2_match_context *mcontext = PRIV(memctl_malloc)( |
| 185 | sizeof(pcre2_real_match_context), (pcre2_memctl *)gcontext); |
| 186 | if (mcontext == NULL) return NULL; |
| 187 | *mcontext = PRIV(default_match_context); |
| 188 | if (gcontext != NULL) |
| 189 | *((pcre2_memctl *)mcontext) = *((pcre2_memctl *)gcontext); |
| 190 | return mcontext; |
| 191 | } |
| 192 | |
| 193 | |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 194 | /* A default convert context is set up to save having to initialize at run time |
| 195 | when no context is supplied to the convert function. */ |
| 196 | |
| 197 | const pcre2_convert_context PRIV(default_convert_context) = { |
| 198 | { default_malloc, default_free, NULL }, /* Default memory handling */ |
| 199 | #ifdef _WIN32 |
| 200 | CHAR_BACKSLASH, /* Default path separator */ |
| 201 | CHAR_GRAVE_ACCENT /* Default escape character */ |
| 202 | #else /* Not Windows */ |
| 203 | CHAR_SLASH, /* Default path separator */ |
| 204 | CHAR_BACKSLASH /* Default escape character */ |
| 205 | #endif |
| 206 | }; |
| 207 | |
| 208 | /* The create function copies the default into the new memory, but must |
| 209 | override the default memory handling functions if a gcontext was provided. */ |
| 210 | |
| 211 | PCRE2_EXP_DEFN pcre2_convert_context * PCRE2_CALL_CONVENTION |
| 212 | pcre2_convert_context_create(pcre2_general_context *gcontext) |
| 213 | { |
| 214 | pcre2_convert_context *ccontext = PRIV(memctl_malloc)( |
| 215 | sizeof(pcre2_real_convert_context), (pcre2_memctl *)gcontext); |
| 216 | if (ccontext == NULL) return NULL; |
| 217 | *ccontext = PRIV(default_convert_context); |
| 218 | if (gcontext != NULL) |
| 219 | *((pcre2_memctl *)ccontext) = *((pcre2_memctl *)gcontext); |
| 220 | return ccontext; |
| 221 | } |
| 222 | |
| 223 | |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 224 | /************************************************* |
| 225 | * Context copy functions * |
| 226 | *************************************************/ |
| 227 | |
| 228 | PCRE2_EXP_DEFN pcre2_general_context * PCRE2_CALL_CONVENTION |
| 229 | pcre2_general_context_copy(pcre2_general_context *gcontext) |
| 230 | { |
| 231 | pcre2_general_context *new = |
| 232 | gcontext->memctl.malloc(sizeof(pcre2_real_general_context), |
| 233 | gcontext->memctl.memory_data); |
| 234 | if (new == NULL) return NULL; |
| 235 | memcpy(new, gcontext, sizeof(pcre2_real_general_context)); |
| 236 | return new; |
| 237 | } |
| 238 | |
| 239 | |
| 240 | PCRE2_EXP_DEFN pcre2_compile_context * PCRE2_CALL_CONVENTION |
| 241 | pcre2_compile_context_copy(pcre2_compile_context *ccontext) |
| 242 | { |
| 243 | pcre2_compile_context *new = |
| 244 | ccontext->memctl.malloc(sizeof(pcre2_real_compile_context), |
| 245 | ccontext->memctl.memory_data); |
| 246 | if (new == NULL) return NULL; |
| 247 | memcpy(new, ccontext, sizeof(pcre2_real_compile_context)); |
| 248 | return new; |
| 249 | } |
| 250 | |
| 251 | |
| 252 | PCRE2_EXP_DEFN pcre2_match_context * PCRE2_CALL_CONVENTION |
| 253 | pcre2_match_context_copy(pcre2_match_context *mcontext) |
| 254 | { |
| 255 | pcre2_match_context *new = |
| 256 | mcontext->memctl.malloc(sizeof(pcre2_real_match_context), |
| 257 | mcontext->memctl.memory_data); |
| 258 | if (new == NULL) return NULL; |
| 259 | memcpy(new, mcontext, sizeof(pcre2_real_match_context)); |
| 260 | return new; |
| 261 | } |
| 262 | |
| 263 | |
| 264 | |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 265 | PCRE2_EXP_DEFN pcre2_convert_context * PCRE2_CALL_CONVENTION |
| 266 | pcre2_convert_context_copy(pcre2_convert_context *ccontext) |
| 267 | { |
| 268 | pcre2_convert_context *new = |
| 269 | ccontext->memctl.malloc(sizeof(pcre2_real_convert_context), |
| 270 | ccontext->memctl.memory_data); |
| 271 | if (new == NULL) return NULL; |
| 272 | memcpy(new, ccontext, sizeof(pcre2_real_convert_context)); |
| 273 | return new; |
| 274 | } |
| 275 | |
| 276 | |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 277 | /************************************************* |
| 278 | * Context free functions * |
| 279 | *************************************************/ |
| 280 | |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 281 | PCRE2_EXP_DEFN void PCRE2_CALL_CONVENTION |
| 282 | pcre2_general_context_free(pcre2_general_context *gcontext) |
| 283 | { |
| 284 | if (gcontext != NULL) |
| 285 | gcontext->memctl.free(gcontext, gcontext->memctl.memory_data); |
| 286 | } |
| 287 | |
| 288 | |
| 289 | PCRE2_EXP_DEFN void PCRE2_CALL_CONVENTION |
| 290 | pcre2_compile_context_free(pcre2_compile_context *ccontext) |
| 291 | { |
| 292 | if (ccontext != NULL) |
| 293 | ccontext->memctl.free(ccontext, ccontext->memctl.memory_data); |
| 294 | } |
| 295 | |
| 296 | |
| 297 | PCRE2_EXP_DEFN void PCRE2_CALL_CONVENTION |
| 298 | pcre2_match_context_free(pcre2_match_context *mcontext) |
| 299 | { |
| 300 | if (mcontext != NULL) |
| 301 | mcontext->memctl.free(mcontext, mcontext->memctl.memory_data); |
| 302 | } |
| 303 | |
| 304 | |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 305 | PCRE2_EXP_DEFN void PCRE2_CALL_CONVENTION |
| 306 | pcre2_convert_context_free(pcre2_convert_context *ccontext) |
| 307 | { |
| 308 | if (ccontext != NULL) |
| 309 | ccontext->memctl.free(ccontext, ccontext->memctl.memory_data); |
| 310 | } |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 311 | |
| 312 | |
| 313 | /************************************************* |
| 314 | * Set values in contexts * |
| 315 | *************************************************/ |
| 316 | |
| 317 | /* All these functions return 0 for success or PCRE2_ERROR_BADDATA if invalid |
| 318 | data is given. Only some of the functions are able to test the validity of the |
| 319 | data. */ |
| 320 | |
| 321 | |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 322 | /* ------------ Compile context ------------ */ |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 323 | |
| 324 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
| 325 | pcre2_set_character_tables(pcre2_compile_context *ccontext, |
Elliott Hughes | 2dbd7d2 | 2020-06-03 14:32:37 -0700 | [diff] [blame] | 326 | const uint8_t *tables) |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 327 | { |
| 328 | ccontext->tables = tables; |
| 329 | return 0; |
| 330 | } |
| 331 | |
| 332 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
| 333 | pcre2_set_bsr(pcre2_compile_context *ccontext, uint32_t value) |
| 334 | { |
| 335 | switch(value) |
| 336 | { |
| 337 | case PCRE2_BSR_ANYCRLF: |
| 338 | case PCRE2_BSR_UNICODE: |
| 339 | ccontext->bsr_convention = value; |
| 340 | return 0; |
| 341 | |
| 342 | default: |
| 343 | return PCRE2_ERROR_BADDATA; |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
| 348 | pcre2_set_max_pattern_length(pcre2_compile_context *ccontext, PCRE2_SIZE length) |
| 349 | { |
| 350 | ccontext->max_pattern_length = length; |
| 351 | return 0; |
| 352 | } |
| 353 | |
| 354 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
| 355 | pcre2_set_newline(pcre2_compile_context *ccontext, uint32_t newline) |
| 356 | { |
| 357 | switch(newline) |
| 358 | { |
| 359 | case PCRE2_NEWLINE_CR: |
| 360 | case PCRE2_NEWLINE_LF: |
| 361 | case PCRE2_NEWLINE_CRLF: |
| 362 | case PCRE2_NEWLINE_ANY: |
| 363 | case PCRE2_NEWLINE_ANYCRLF: |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 364 | case PCRE2_NEWLINE_NUL: |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 365 | ccontext->newline_convention = newline; |
| 366 | return 0; |
| 367 | |
| 368 | default: |
| 369 | return PCRE2_ERROR_BADDATA; |
| 370 | } |
| 371 | } |
| 372 | |
| 373 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
| 374 | pcre2_set_parens_nest_limit(pcre2_compile_context *ccontext, uint32_t limit) |
| 375 | { |
| 376 | ccontext->parens_nest_limit = limit; |
| 377 | return 0; |
| 378 | } |
| 379 | |
| 380 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 381 | pcre2_set_compile_extra_options(pcre2_compile_context *ccontext, uint32_t options) |
| 382 | { |
| 383 | ccontext->extra_options = options; |
| 384 | return 0; |
| 385 | } |
| 386 | |
| 387 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 388 | pcre2_set_compile_recursion_guard(pcre2_compile_context *ccontext, |
| 389 | int (*guard)(uint32_t, void *), void *user_data) |
| 390 | { |
| 391 | ccontext->stack_guard = guard; |
| 392 | ccontext->stack_guard_data = user_data; |
| 393 | return 0; |
| 394 | } |
| 395 | |
| 396 | |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 397 | /* ------------ Match context ------------ */ |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 398 | |
| 399 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
| 400 | pcre2_set_callout(pcre2_match_context *mcontext, |
| 401 | int (*callout)(pcre2_callout_block *, void *), void *callout_data) |
| 402 | { |
| 403 | mcontext->callout = callout; |
| 404 | mcontext->callout_data = callout_data; |
| 405 | return 0; |
| 406 | } |
| 407 | |
| 408 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
Elliott Hughes | 0c26e19 | 2019-08-07 12:24:46 -0700 | [diff] [blame] | 409 | pcre2_set_substitute_callout(pcre2_match_context *mcontext, |
| 410 | int (*substitute_callout)(pcre2_substitute_callout_block *, void *), |
| 411 | void *substitute_callout_data) |
| 412 | { |
| 413 | mcontext->substitute_callout = substitute_callout; |
| 414 | mcontext->substitute_callout_data = substitute_callout_data; |
| 415 | return 0; |
| 416 | } |
| 417 | |
| 418 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 419 | pcre2_set_heap_limit(pcre2_match_context *mcontext, uint32_t limit) |
| 420 | { |
| 421 | mcontext->heap_limit = limit; |
| 422 | return 0; |
| 423 | } |
| 424 | |
| 425 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 426 | pcre2_set_match_limit(pcre2_match_context *mcontext, uint32_t limit) |
| 427 | { |
| 428 | mcontext->match_limit = limit; |
| 429 | return 0; |
| 430 | } |
| 431 | |
| 432 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 433 | pcre2_set_depth_limit(pcre2_match_context *mcontext, uint32_t limit) |
| 434 | { |
| 435 | mcontext->depth_limit = limit; |
| 436 | return 0; |
| 437 | } |
| 438 | |
| 439 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 440 | pcre2_set_offset_limit(pcre2_match_context *mcontext, PCRE2_SIZE limit) |
| 441 | { |
| 442 | mcontext->offset_limit = limit; |
| 443 | return 0; |
| 444 | } |
| 445 | |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 446 | /* This function became obsolete at release 10.30. It is kept as a synonym for |
| 447 | backwards compatibility. */ |
| 448 | |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 449 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
| 450 | pcre2_set_recursion_limit(pcre2_match_context *mcontext, uint32_t limit) |
| 451 | { |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 452 | return pcre2_set_depth_limit(mcontext, limit); |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 453 | } |
| 454 | |
| 455 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
| 456 | pcre2_set_recursion_memory_management(pcre2_match_context *mcontext, |
| 457 | void *(*mymalloc)(size_t, void *), void (*myfree)(void *, void *), |
| 458 | void *mydata) |
| 459 | { |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 460 | (void)mcontext; |
| 461 | (void)mymalloc; |
| 462 | (void)myfree; |
| 463 | (void)mydata; |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 464 | return 0; |
| 465 | } |
| 466 | |
| 467 | /* ------------ Convert context ------------ */ |
| 468 | |
| 469 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
| 470 | pcre2_set_glob_separator(pcre2_convert_context *ccontext, uint32_t separator) |
| 471 | { |
| 472 | if (separator != CHAR_SLASH && separator != CHAR_BACKSLASH && |
| 473 | separator != CHAR_DOT) return PCRE2_ERROR_BADDATA; |
| 474 | ccontext->glob_separator = separator; |
| 475 | return 0; |
| 476 | } |
| 477 | |
| 478 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
| 479 | pcre2_set_glob_escape(pcre2_convert_context *ccontext, uint32_t escape) |
| 480 | { |
| 481 | if (escape > 255 || (escape != 0 && !ispunct(escape))) |
| 482 | return PCRE2_ERROR_BADDATA; |
| 483 | ccontext->glob_escape = escape; |
Janis Danisevskis | 112c9cc | 2016-03-31 13:35:25 +0100 | [diff] [blame] | 484 | return 0; |
| 485 | } |
| 486 | |
| 487 | /* End of pcre2_context.c */ |
Elliott Hughes | 9bc971b | 2018-07-27 13:23:14 -0700 | [diff] [blame] | 488 | |