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regposix.c
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regposix.c
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/**********************************************************************
regposix.c - Onigmo (Oniguruma-mod) (regular expression library)
**********************************************************************/
/*-
* Copyright (c) 2002-2008 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
* Copyright (c) 2011-2016 K.Takata <kentkt AT csc DOT jp>
* 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 "onigmoposix.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 },
{ ONIGERR_MEMORY, REG_ESPACE },
{ ONIGERR_MATCH_STACK_LIMIT_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_SET, REG_EONIG_BADARG },
{ ONIGERR_SPECIFIED_ENCODING_CANT_CONVERT_TO_WIDE_CHAR, REG_EONIG_BADARG },
{ 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_NOT_SUPPORTED_ENCODING_COMBINATION, REG_EONIG_BADARG },
};
int i;
if (code >= 0) return 0;
for (i = 0; i < numberof(o2p); 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;
const OnigSyntaxType* syntax = OnigDefaultSyntax;
OnigOptionType options;
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;
OnigRegion* region = NULL;
OnigOptionType options;
options = ONIG_OPTION_NONE;
if ((posix_options & REG_NOTBOL) != 0) options |= ONIG_OPTION_NOTBOL;
if ((posix_options & REG_NOTEOL) != 0) options |= ONIG_OPTION_NOTEOL;
if ((reg->comp_options & REG_NOSUB) != 0) {
nmatch = 0;
}
else if (nmatch != 0) {
region = onig_region_new();
if (region == NULL)
return REG_ESPACE;
}
ENC_STRING_LEN(ONIG_C(reg)->enc, str, len);
end = (UChar* )(str + len);
r = (int )onig_search(ONIG_C(reg), (UChar* )str, end, (UChar* )str, end,
region, options);
if (r >= 0) {
r = 0; /* Match */
for (i = 0; i < (int )nmatch; i++) {
pmatch[i].rm_so = (regoff_t )region->beg[i];
pmatch[i].rm_eo = (regoff_t )region->end[i];
}
}
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 (region != NULL)
onig_region_free(region, 1);
#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));
}
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_EUC_JP:
enc = ONIG_ENCODING_EUC_JP;
break;
case REG_POSIX_ENCODING_SJIS:
enc = ONIG_ENCODING_SJIS;
break;
case REG_POSIX_ENCODING_UTF8:
enc = ONIG_ENCODING_UTF8;
break;
case REG_POSIX_ENCODING_UTF16_BE:
enc = ONIG_ENCODING_UTF16_BE;
break;
case REG_POSIX_ENCODING_UTF16_LE:
enc = ONIG_ENCODING_UTF16_LE;
break;
default:
return ;
break;
}
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));
}