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/**********************************************************************
reggnu.c - Oniguruma (regular expression library)
**********************************************************************/
/*-
* Copyright (c) 2002-2019 K.Kosako <sndgk393 AT ybb DOT ne 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.
*/
#include "regint.h"
#include "oniggnu.h"
extern void
re_free_registers(OnigRegion* r)
{
/* 0: don't free self */
onig_region_free(r, 0);
}
extern int
re_adjust_startpos(regex_t* reg, const char* string, int size,
int startpos, int range)
{
if (startpos > 0 && ONIGENC_MBC_MAXLEN(reg->enc) != 1 && startpos < size) {
UChar *p;
UChar *s = (UChar* )string + startpos;
if (range > 0) {
p = onigenc_get_right_adjust_char_head(reg->enc, (UChar* )string, s);
}
else {
p = ONIGENC_LEFT_ADJUST_CHAR_HEAD(reg->enc, (UChar* )string, s);
}
return (int )(p - (UChar* )string);
}
return startpos;
}
extern int
re_match(regex_t* reg, const char* str, int size, int pos,
struct re_registers* regs)
{
return onig_match(reg, (UChar* )str, (UChar* )(str + size),
(UChar* )(str + pos), regs, ONIG_OPTION_NONE);
}
extern int
re_search(regex_t* bufp, const char* string, int size, int startpos, int range,
struct re_registers* regs)
{
return onig_search(bufp, (UChar* )string, (UChar* )(string + size),
(UChar* )(string + startpos),
(UChar* )(string + startpos + range),
regs, ONIG_OPTION_NONE);
}
extern int
re_compile_pattern(const char* pattern, int size, regex_t* reg, char* ebuf)
{
int r;
OnigErrorInfo einfo;
r = onig_compile(reg, (UChar* )pattern, (UChar* )(pattern + size), &einfo);
if (r != ONIG_NORMAL) {
if (IS_NOT_NULL(ebuf))
(void )onig_error_code_to_str((UChar* )ebuf, r, &einfo);
}
return r;
}
extern void
re_free_pattern(regex_t* reg)
{
onig_free(reg);
}
extern int
re_alloc_pattern(regex_t** reg)
{
*reg = (regex_t* )xmalloc(sizeof(regex_t));
if (IS_NULL(*reg)) return ONIGERR_MEMORY;
return onig_reg_init(*reg, ONIG_OPTION_DEFAULT,
ONIGENC_CASE_FOLD_DEFAULT,
OnigEncDefaultCharEncoding,
OnigDefaultSyntax);
}
extern void
re_set_casetable(const char* table)
{
onigenc_set_default_caseconv_table((UChar* )table);
}
extern void
re_mbcinit(int mb_code)
{
OnigEncoding enc;
switch (mb_code) {
case RE_MBCTYPE_ASCII:
enc = ONIG_ENCODING_ASCII;
break;
case RE_MBCTYPE_EUC:
enc = ONIG_ENCODING_EUC_JP;
break;
case RE_MBCTYPE_SJIS:
enc = ONIG_ENCODING_SJIS;
break;
case RE_MBCTYPE_UTF8:
enc = ONIG_ENCODING_UTF8;
break;
default:
return ;
break;
}
onig_initialize(&enc, 1);
onigenc_set_default_encoding(enc);
}
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