/********************************************************************** regposix.c - Oniguruma (regular expression library) **********************************************************************/ /*- * Copyright (c) 2002-2019 K.Kosako * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #define regex_t onig_regex_t #include "regint.h" #undef regex_t #include "onigposix.h" #define ONIG_C(reg) ((onig_regex_t* )((reg)->onig)) #define PONIG_C(reg) ((onig_regex_t** )(&(reg)->onig)) /* #define ENC_STRING_LEN(enc,s,len) len = strlen(s) */ #define ENC_STRING_LEN(enc,s,len) do { \ if (ONIGENC_MBC_MINLEN(enc) == 1) { \ UChar* tmps = (UChar* )(s); \ while (*tmps != 0) tmps++; \ len = (int )(tmps - (UChar* )(s));\ } \ else { \ len = onigenc_str_bytelen_null(enc, (UChar* )s); \ } \ } while(0) typedef struct { int onig_err; int posix_err; } O2PERR; static int onig2posix_error_code(int code) { static const O2PERR o2p[] = { { ONIG_MISMATCH, REG_NOMATCH }, { ONIG_NO_SUPPORT_CONFIG, REG_EONIG_INTERNAL }, { ONIG_ABORT, REG_EONIG_INTERNAL }, { ONIGERR_MEMORY, REG_ESPACE }, { ONIGERR_MATCH_STACK_LIMIT_OVER, REG_EONIG_INTERNAL }, { ONIGERR_RETRY_LIMIT_IN_MATCH_OVER, REG_EONIG_INTERNAL }, { ONIGERR_TYPE_BUG, REG_EONIG_INTERNAL }, { ONIGERR_PARSER_BUG, REG_EONIG_INTERNAL }, { ONIGERR_STACK_BUG, REG_EONIG_INTERNAL }, { ONIGERR_UNDEFINED_BYTECODE, REG_EONIG_INTERNAL }, { ONIGERR_UNEXPECTED_BYTECODE, REG_EONIG_INTERNAL }, { ONIGERR_DEFAULT_ENCODING_IS_NOT_SETTED, REG_EONIG_BADARG }, { ONIGERR_SPECIFIED_ENCODING_CANT_CONVERT_TO_WIDE_CHAR, REG_EONIG_BADARG }, { ONIGERR_FAIL_TO_INITIALIZE, REG_EONIG_INTERNAL }, { ONIGERR_INVALID_ARGUMENT, REG_EONIG_BADARG }, { ONIGERR_END_PATTERN_AT_LEFT_BRACE, REG_EBRACE }, { ONIGERR_END_PATTERN_AT_LEFT_BRACKET, REG_EBRACK }, { ONIGERR_EMPTY_CHAR_CLASS, REG_ECTYPE }, { ONIGERR_PREMATURE_END_OF_CHAR_CLASS, REG_ECTYPE }, { ONIGERR_END_PATTERN_AT_ESCAPE, REG_EESCAPE }, { ONIGERR_END_PATTERN_AT_META, REG_EESCAPE }, { ONIGERR_END_PATTERN_AT_CONTROL, REG_EESCAPE }, { ONIGERR_META_CODE_SYNTAX, REG_BADPAT }, { ONIGERR_CONTROL_CODE_SYNTAX, REG_BADPAT }, { ONIGERR_CHAR_CLASS_VALUE_AT_END_OF_RANGE, REG_ECTYPE }, { ONIGERR_CHAR_CLASS_VALUE_AT_START_OF_RANGE, REG_ECTYPE }, { ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS, REG_ECTYPE }, { ONIGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED, REG_BADRPT }, { ONIGERR_TARGET_OF_REPEAT_OPERATOR_INVALID, REG_BADRPT }, { ONIGERR_NESTED_REPEAT_OPERATOR, REG_BADRPT }, { ONIGERR_UNMATCHED_CLOSE_PARENTHESIS, REG_EPAREN }, { ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS, REG_EPAREN }, { ONIGERR_END_PATTERN_IN_GROUP, REG_BADPAT }, { ONIGERR_UNDEFINED_GROUP_OPTION, REG_BADPAT }, { ONIGERR_INVALID_POSIX_BRACKET_TYPE, REG_BADPAT }, { ONIGERR_INVALID_LOOK_BEHIND_PATTERN, REG_BADPAT }, { ONIGERR_INVALID_REPEAT_RANGE_PATTERN, REG_BADPAT }, { ONIGERR_TOO_BIG_NUMBER, REG_BADPAT }, { ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE, REG_BADBR }, { ONIGERR_UPPER_SMALLER_THAN_LOWER_IN_REPEAT_RANGE, REG_BADBR }, { ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS, REG_ECTYPE }, { ONIGERR_MISMATCH_CODE_LENGTH_IN_CLASS_RANGE, REG_ECTYPE }, { ONIGERR_TOO_MANY_MULTI_BYTE_RANGES, REG_ECTYPE }, { ONIGERR_TOO_SHORT_MULTI_BYTE_STRING, REG_BADPAT }, { ONIGERR_TOO_BIG_BACKREF_NUMBER, REG_ESUBREG }, { ONIGERR_INVALID_BACKREF, REG_ESUBREG }, { ONIGERR_NUMBERED_BACKREF_OR_CALL_NOT_ALLOWED, REG_BADPAT }, { ONIGERR_TOO_BIG_WIDE_CHAR_VALUE, REG_EONIG_BADWC }, { ONIGERR_TOO_LONG_WIDE_CHAR_VALUE, REG_EONIG_BADWC }, { ONIGERR_INVALID_CODE_POINT_VALUE, REG_EONIG_BADWC }, { ONIGERR_EMPTY_GROUP_NAME, REG_BADPAT }, { ONIGERR_INVALID_GROUP_NAME, REG_BADPAT }, { ONIGERR_INVALID_CHAR_IN_GROUP_NAME, REG_BADPAT }, { ONIGERR_UNDEFINED_NAME_REFERENCE, REG_BADPAT }, { ONIGERR_UNDEFINED_GROUP_REFERENCE, REG_BADPAT }, { ONIGERR_MULTIPLEX_DEFINED_NAME, REG_BADPAT }, { ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL, REG_BADPAT }, { ONIGERR_NEVER_ENDING_RECURSION, REG_BADPAT }, { ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY, REG_BADPAT }, { ONIGERR_INVALID_CHAR_PROPERTY_NAME, REG_BADPAT }, { ONIGERR_INVALID_IF_ELSE_SYNTAX, REG_BADPAT }, { ONIGERR_INVALID_ABSENT_GROUP_PATTERN, REG_BADPAT }, { ONIGERR_INVALID_ABSENT_GROUP_GENERATOR_PATTERN, REG_BADPAT }, { ONIGERR_INVALID_CALLOUT_PATTERN, REG_BADPAT }, { ONIGERR_INVALID_CALLOUT_NAME, REG_BADPAT }, { ONIGERR_UNDEFINED_CALLOUT_NAME, REG_BADPAT }, { ONIGERR_INVALID_CALLOUT_BODY, REG_BADPAT }, { ONIGERR_INVALID_CALLOUT_TAG_NAME, REG_BADPAT }, { ONIGERR_INVALID_CALLOUT_ARG, REG_BADPAT }, { ONIGERR_NOT_SUPPORTED_ENCODING_COMBINATION, REG_EONIG_BADARG }, { ONIGERR_LIBRARY_IS_NOT_INITIALIZED, REG_EONIG_INTERNAL } }; int i; if (code >= 0) return 0; for (i = 0; i < (int )(sizeof(o2p) / sizeof(o2p[0])); i++) { if (code == o2p[i].onig_err) return o2p[i].posix_err; } return REG_EONIG_INTERNAL; /* but, unknown error code */ } extern int regcomp(regex_t* reg, const char* pattern, int posix_options) { int r, len; OnigSyntaxType* syntax = OnigDefaultSyntax; OnigOptionType options; reg->onig = (void* )0; if ((posix_options & REG_EXTENDED) == 0) syntax = ONIG_SYNTAX_POSIX_BASIC; options = syntax->options; if ((posix_options & REG_ICASE) != 0) ONIG_OPTION_ON(options, ONIG_OPTION_IGNORECASE); if ((posix_options & REG_NEWLINE) != 0) { ONIG_OPTION_ON( options, ONIG_OPTION_NEGATE_SINGLELINE); ONIG_OPTION_OFF(options, ONIG_OPTION_SINGLELINE); } reg->comp_options = posix_options; ENC_STRING_LEN(OnigEncDefaultCharEncoding, pattern, len); r = onig_new(PONIG_C(reg), (UChar* )pattern, (UChar* )(pattern + len), options, OnigEncDefaultCharEncoding, syntax, (OnigErrorInfo* )NULL); if (r != ONIG_NORMAL) { return onig2posix_error_code(r); } reg->re_nsub = ONIG_C(reg)->num_mem; return 0; } extern int regexec(regex_t* reg, const char* str, size_t nmatch, regmatch_t pmatch[], int posix_options) { int r, i, len; UChar* end; regmatch_t* pm; OnigOptionType options; options = ONIG_OPTION_POSIX_REGION; if ((posix_options & REG_NOTBOL) != 0) options |= ONIG_OPTION_NOTBOL; if ((posix_options & REG_NOTEOL) != 0) options |= ONIG_OPTION_NOTEOL; if (nmatch == 0 || (reg->comp_options & REG_NOSUB) != 0) { pm = (regmatch_t* )NULL; nmatch = 0; } else if ((int )nmatch < ONIG_C(reg)->num_mem + 1) { pm = (regmatch_t* )xmalloc(sizeof(regmatch_t) * (ONIG_C(reg)->num_mem + 1)); if (pm == NULL) return REG_ESPACE; } else { pm = pmatch; } ENC_STRING_LEN(ONIG_C(reg)->enc, str, len); end = (UChar* )(str + len); r = onig_search(ONIG_C(reg), (UChar* )str, end, (UChar* )str, end, (OnigRegion* )pm, options); if (r >= 0) { r = 0; /* Match */ if (pm != pmatch && pm != NULL) { xmemcpy(pmatch, pm, sizeof(regmatch_t) * nmatch); } } else if (r == ONIG_MISMATCH) { r = REG_NOMATCH; for (i = 0; i < (int )nmatch; i++) pmatch[i].rm_so = pmatch[i].rm_eo = ONIG_REGION_NOTPOS; } else { r = onig2posix_error_code(r); } if (pm != pmatch && pm != NULL) xfree(pm); #if 0 if (reg->re_nsub > nmatch - 1) reg->re_nsub = (nmatch <= 1 ? 0 : nmatch - 1); #endif return r; } extern void regfree(regex_t* reg) { onig_free(ONIG_C(reg)); reg->onig = (void* )0; } extern void reg_set_encoding(int mb_code) { OnigEncoding enc; switch (mb_code) { case REG_POSIX_ENCODING_ASCII: enc = ONIG_ENCODING_ASCII; break; case REG_POSIX_ENCODING_UTF16_LE: enc = ONIG_ENCODING_UTF16_LE; break; } onig_initialize(&enc, 1); onigenc_set_default_encoding(enc); } extern int reg_name_to_group_numbers(regex_t* reg, const unsigned char* name, const unsigned char* name_end, int** nums) { return onig_name_to_group_numbers(ONIG_C(reg), name, name_end, nums); } typedef struct { int (*func)(const unsigned char*, const unsigned char*,int,int*,regex_t*,void*); regex_t* reg; void* arg; } i_wrap; static int i_wrapper(const UChar* name, const UChar* name_end, int ng, int* gs, onig_regex_t* reg ARG_UNUSED, void* arg) { i_wrap* warg = (i_wrap* )arg; return (*warg->func)(name, name_end, ng, gs, warg->reg, warg->arg); } extern int reg_foreach_name(regex_t* reg, int (*func)(const unsigned char*, const unsigned char*,int,int*,regex_t*,void*), void* arg) { i_wrap warg; warg.func = func; warg.reg = reg; warg.arg = arg; return onig_foreach_name(ONIG_C(reg), i_wrapper, &warg); } extern int reg_number_of_names(regex_t* reg) { return onig_number_of_names(ONIG_C(reg)); }