/**********************************************************************
|
regext.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.
|
*/
|
|
#include "regint.h"
|
|
#if 0
|
static void
|
conv_ext0be32(const UChar* s, const UChar* end, UChar* conv)
|
{
|
while (s < end) {
|
*conv++ = '\0';
|
*conv++ = '\0';
|
*conv++ = '\0';
|
*conv++ = *s++;
|
}
|
}
|
|
static void
|
conv_ext0le32(const UChar* s, const UChar* end, UChar* conv)
|
{
|
while (s < end) {
|
*conv++ = *s++;
|
*conv++ = '\0';
|
*conv++ = '\0';
|
*conv++ = '\0';
|
}
|
}
|
|
static void
|
conv_ext0be(const UChar* s, const UChar* end, UChar* conv)
|
{
|
while (s < end) {
|
*conv++ = '\0';
|
*conv++ = *s++;
|
}
|
}
|
|
static void
|
conv_ext0le(const UChar* s, const UChar* end, UChar* conv)
|
{
|
while (s < end) {
|
*conv++ = *s++;
|
*conv++ = '\0';
|
}
|
}
|
|
static void
|
conv_swap4bytes(const UChar* s, const UChar* end, UChar* conv)
|
{
|
while (s < end) {
|
*conv++ = s[3];
|
*conv++ = s[2];
|
*conv++ = s[1];
|
*conv++ = s[0];
|
s += 4;
|
}
|
}
|
|
static void
|
conv_swap2bytes(const UChar* s, const UChar* end, UChar* conv)
|
{
|
while (s < end) {
|
*conv++ = s[1];
|
*conv++ = s[0];
|
s += 2;
|
}
|
}
|
|
static int
|
conv_encoding(OnigEncoding from, OnigEncoding to, const UChar* s, const UChar* end,
|
UChar** conv, UChar** conv_end)
|
{
|
int len = (int )(end - s);
|
|
if (to == ONIG_ENCODING_UTF16_BE) {
|
if (from == ONIG_ENCODING_ASCII || from == ONIG_ENCODING_ISO_8859_1) {
|
*conv = (UChar* )xmalloc(len * 2);
|
CHECK_NULL_RETURN_MEMERR(*conv);
|
*conv_end = *conv + (len * 2);
|
conv_ext0be(s, end, *conv);
|
return 0;
|
}
|
else if (from == ONIG_ENCODING_UTF16_LE) {
|
swap16:
|
*conv = (UChar* )xmalloc(len);
|
CHECK_NULL_RETURN_MEMERR(*conv);
|
*conv_end = *conv + len;
|
conv_swap2bytes(s, end, *conv);
|
return 0;
|
}
|
}
|
else if (to == ONIG_ENCODING_UTF16_LE) {
|
if (from == ONIG_ENCODING_ASCII || from == ONIG_ENCODING_ISO_8859_1) {
|
*conv = (UChar* )xmalloc(len * 2);
|
CHECK_NULL_RETURN_MEMERR(*conv);
|
*conv_end = *conv + (len * 2);
|
conv_ext0le(s, end, *conv);
|
return 0;
|
}
|
else if (from == ONIG_ENCODING_UTF16_BE) {
|
goto swap16;
|
}
|
}
|
if (to == ONIG_ENCODING_UTF32_BE) {
|
if (from == ONIG_ENCODING_ASCII || from == ONIG_ENCODING_ISO_8859_1) {
|
*conv = (UChar* )xmalloc(len * 4);
|
CHECK_NULL_RETURN_MEMERR(*conv);
|
*conv_end = *conv + (len * 4);
|
conv_ext0be32(s, end, *conv);
|
return 0;
|
}
|
else if (from == ONIG_ENCODING_UTF32_LE) {
|
swap32:
|
*conv = (UChar* )xmalloc(len);
|
CHECK_NULL_RETURN_MEMERR(*conv);
|
*conv_end = *conv + len;
|
conv_swap4bytes(s, end, *conv);
|
return 0;
|
}
|
}
|
else if (to == ONIG_ENCODING_UTF32_LE) {
|
if (from == ONIG_ENCODING_ASCII || from == ONIG_ENCODING_ISO_8859_1) {
|
*conv = (UChar* )xmalloc(len * 4);
|
CHECK_NULL_RETURN_MEMERR(*conv);
|
*conv_end = *conv + (len * 4);
|
conv_ext0le32(s, end, *conv);
|
return 0;
|
}
|
else if (from == ONIG_ENCODING_UTF32_BE) {
|
goto swap32;
|
}
|
}
|
|
return ONIGERR_NOT_SUPPORTED_ENCODING_COMBINATION;
|
}
|
#endif
|
|
extern int
|
onig_new_deluxe(regex_t** reg, const UChar* pattern, const UChar* pattern_end,
|
OnigCompileInfo* ci, OnigErrorInfo* einfo)
|
{
|
int r;
|
UChar *cpat, *cpat_end;
|
|
if (IS_NOT_NULL(einfo)) einfo->par = (UChar* )NULL;
|
|
if (ci->pattern_enc != ci->target_enc) {
|
return ONIGERR_NOT_SUPPORTED_ENCODING_COMBINATION;
|
}
|
else {
|
cpat = (UChar* )pattern;
|
cpat_end = (UChar* )pattern_end;
|
}
|
|
*reg = (regex_t* )xmalloc(sizeof(regex_t));
|
if (IS_NULL(*reg)) {
|
r = ONIGERR_MEMORY;
|
goto err2;
|
}
|
|
r = onig_reg_init(*reg, ci->option, ci->case_fold_flag, ci->target_enc,
|
ci->syntax);
|
if (r != 0) goto err;
|
|
r = onig_compile(*reg, cpat, cpat_end, einfo);
|
if (r != 0) {
|
err:
|
onig_free(*reg);
|
*reg = NULL;
|
}
|
|
err2:
|
if (cpat != pattern) xfree(cpat);
|
|
return r;
|
}
|
