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archived-php-src/ext/mbstring/libmbfl/mbfl/mbfl_encoding.c
Nikita Popov 226d9dd30a Only allow "pass" as input/output encoding
"pass" is not a real encoding, it just means "don't perform any
conversion". Using it as an internal encoding or passing it to
any of the mbstring() function will not work (and on master commonly
assert).
2020-05-07 11:19:14 +02:00

324 lines
7.9 KiB
C

/*
* "streamable kanji code filter and converter"
* Copyright (c) 1998-2002 HappySize, Inc. All rights reserved.
*
* LICENSE NOTICES
*
* This file is part of "streamable kanji code filter and converter",
* which is distributed under the terms of GNU Lesser General Public
* License (version 2) as published by the Free Software Foundation.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with "streamable kanji code filter and converter";
* if not, write to the Free Software Foundation, Inc., 59 Temple Place,
* Suite 330, Boston, MA 02111-1307 USA
*
* The author of this file:
*
*/
/*
* The source code included in this files was separated from mbfilter.c
* by Moriyoshi Koizumi <moriyoshi@php.net> on 20 Dec 2002. The file
* mbfilter.c is included in this package .
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stddef.h>
#include <string.h>
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#include "mbfl_encoding.h"
#include "mbfilter_pass.h"
#include "mbfilter_8bit.h"
#include "mbfilter_wchar.h"
#include "filters/mbfilter_euc_cn.h"
#include "filters/mbfilter_hz.h"
#include "filters/mbfilter_euc_tw.h"
#include "filters/mbfilter_big5.h"
#include "filters/mbfilter_uhc.h"
#include "filters/mbfilter_euc_kr.h"
#include "filters/mbfilter_iso2022_kr.h"
#include "filters/mbfilter_sjis.h"
#include "filters/mbfilter_sjis_open.h"
#include "filters/mbfilter_sjis_mobile.h"
#include "filters/mbfilter_sjis_mac.h"
#include "filters/mbfilter_sjis_2004.h"
#include "filters/mbfilter_cp51932.h"
#include "filters/mbfilter_jis.h"
#include "filters/mbfilter_iso2022_jp_ms.h"
#include "filters/mbfilter_iso2022jp_2004.h"
#include "filters/mbfilter_iso2022jp_mobile.h"
#include "filters/mbfilter_euc_jp.h"
#include "filters/mbfilter_euc_jp_win.h"
#include "filters/mbfilter_euc_jp_2004.h"
#include "filters/mbfilter_gb18030.h"
#include "filters/mbfilter_ascii.h"
#include "filters/mbfilter_koi8r.h"
#include "filters/mbfilter_koi8u.h"
#include "filters/mbfilter_cp866.h"
#include "filters/mbfilter_cp932.h"
#include "filters/mbfilter_cp936.h"
#include "filters/mbfilter_cp1251.h"
#include "filters/mbfilter_cp1252.h"
#include "filters/mbfilter_cp1254.h"
#include "filters/mbfilter_cp5022x.h"
#include "filters/mbfilter_iso8859_1.h"
#include "filters/mbfilter_iso8859_2.h"
#include "filters/mbfilter_iso8859_3.h"
#include "filters/mbfilter_iso8859_4.h"
#include "filters/mbfilter_iso8859_5.h"
#include "filters/mbfilter_iso8859_6.h"
#include "filters/mbfilter_iso8859_7.h"
#include "filters/mbfilter_iso8859_8.h"
#include "filters/mbfilter_iso8859_9.h"
#include "filters/mbfilter_iso8859_10.h"
#include "filters/mbfilter_iso8859_13.h"
#include "filters/mbfilter_iso8859_14.h"
#include "filters/mbfilter_iso8859_15.h"
#include "filters/mbfilter_iso8859_16.h"
#include "filters/mbfilter_base64.h"
#include "filters/mbfilter_qprint.h"
#include "filters/mbfilter_uuencode.h"
#include "filters/mbfilter_7bit.h"
#include "filters/mbfilter_utf7.h"
#include "filters/mbfilter_utf7imap.h"
#include "filters/mbfilter_utf8.h"
#include "filters/mbfilter_utf8_mobile.h"
#include "filters/mbfilter_utf16.h"
#include "filters/mbfilter_utf32.h"
#include "filters/mbfilter_byte2.h"
#include "filters/mbfilter_byte4.h"
#include "filters/mbfilter_ucs4.h"
#include "filters/mbfilter_ucs2.h"
#include "filters/mbfilter_htmlent.h"
#include "filters/mbfilter_armscii8.h"
#include "filters/mbfilter_cp850.h"
#ifndef HAVE_STRCASECMP
#ifdef HAVE_STRICMP
#define strcasecmp stricmp
#endif
#endif
static const mbfl_encoding *mbfl_encoding_ptr_list[] = {
&mbfl_encoding_wchar,
&mbfl_encoding_byte2be,
&mbfl_encoding_byte2le,
&mbfl_encoding_byte4be,
&mbfl_encoding_byte4le,
&mbfl_encoding_base64,
&mbfl_encoding_uuencode,
&mbfl_encoding_html_ent,
&mbfl_encoding_qprint,
&mbfl_encoding_7bit,
&mbfl_encoding_8bit,
&mbfl_encoding_ucs4,
&mbfl_encoding_ucs4be,
&mbfl_encoding_ucs4le,
&mbfl_encoding_ucs2,
&mbfl_encoding_ucs2be,
&mbfl_encoding_ucs2le,
&mbfl_encoding_utf32,
&mbfl_encoding_utf32be,
&mbfl_encoding_utf32le,
&mbfl_encoding_utf16,
&mbfl_encoding_utf16be,
&mbfl_encoding_utf16le,
&mbfl_encoding_utf8,
&mbfl_encoding_utf7,
&mbfl_encoding_utf7imap,
&mbfl_encoding_ascii,
&mbfl_encoding_euc_jp,
&mbfl_encoding_sjis,
&mbfl_encoding_eucjp_win,
&mbfl_encoding_eucjp2004,
&mbfl_encoding_sjis_open,
&mbfl_encoding_sjis_docomo,
&mbfl_encoding_sjis_kddi,
&mbfl_encoding_sjis_sb,
&mbfl_encoding_sjis_mac,
&mbfl_encoding_sjis2004,
&mbfl_encoding_utf8_docomo,
&mbfl_encoding_utf8_kddi_a,
&mbfl_encoding_utf8_kddi_b,
&mbfl_encoding_utf8_sb,
&mbfl_encoding_cp932,
&mbfl_encoding_cp51932,
&mbfl_encoding_jis,
&mbfl_encoding_2022jp,
&mbfl_encoding_2022jpms,
&mbfl_encoding_gb18030,
&mbfl_encoding_cp1252,
&mbfl_encoding_cp1254,
&mbfl_encoding_8859_1,
&mbfl_encoding_8859_2,
&mbfl_encoding_8859_3,
&mbfl_encoding_8859_4,
&mbfl_encoding_8859_5,
&mbfl_encoding_8859_6,
&mbfl_encoding_8859_7,
&mbfl_encoding_8859_8,
&mbfl_encoding_8859_9,
&mbfl_encoding_8859_10,
&mbfl_encoding_8859_13,
&mbfl_encoding_8859_14,
&mbfl_encoding_8859_15,
&mbfl_encoding_8859_16,
&mbfl_encoding_euc_cn,
&mbfl_encoding_cp936,
&mbfl_encoding_hz,
&mbfl_encoding_euc_tw,
&mbfl_encoding_big5,
&mbfl_encoding_cp950,
&mbfl_encoding_euc_kr,
&mbfl_encoding_uhc,
&mbfl_encoding_2022kr,
&mbfl_encoding_cp1251,
&mbfl_encoding_cp866,
&mbfl_encoding_koi8r,
&mbfl_encoding_koi8u,
&mbfl_encoding_armscii8,
&mbfl_encoding_cp850,
&mbfl_encoding_jis_ms,
&mbfl_encoding_2022jp_2004,
&mbfl_encoding_2022jp_kddi,
&mbfl_encoding_cp50220,
&mbfl_encoding_cp50220raw,
&mbfl_encoding_cp50221,
&mbfl_encoding_cp50222,
NULL
};
/* encoding resolver */
const mbfl_encoding *
mbfl_name2encoding(const char *name)
{
const mbfl_encoding *encoding;
int i, j;
if (name == NULL) {
return NULL;
}
i = 0;
while ((encoding = mbfl_encoding_ptr_list[i++]) != NULL){
if (strcasecmp(encoding->name, name) == 0) {
return encoding;
}
}
/* serch MIME charset name */
i = 0;
while ((encoding = mbfl_encoding_ptr_list[i++]) != NULL) {
if (encoding->mime_name != NULL) {
if (strcasecmp(encoding->mime_name, name) == 0) {
return encoding;
}
}
}
/* serch aliases */
i = 0;
while ((encoding = mbfl_encoding_ptr_list[i++]) != NULL) {
if (encoding->aliases != NULL) {
j = 0;
while ((*encoding->aliases)[j] != NULL) {
if (strcasecmp((*encoding->aliases)[j], name) == 0) {
return encoding;
}
j++;
}
}
}
return NULL;
}
const mbfl_encoding *
mbfl_no2encoding(enum mbfl_no_encoding no_encoding)
{
const mbfl_encoding *encoding;
int i;
i = 0;
while ((encoding = mbfl_encoding_ptr_list[i++]) != NULL){
if (encoding->no_encoding == no_encoding) {
return encoding;
}
}
return NULL;
}
enum mbfl_no_encoding
mbfl_name2no_encoding(const char *name)
{
const mbfl_encoding *encoding;
encoding = mbfl_name2encoding(name);
if (encoding == NULL) {
return mbfl_no_encoding_invalid;
} else {
return encoding->no_encoding;
}
}
const char *
mbfl_no_encoding2name(enum mbfl_no_encoding no_encoding)
{
const mbfl_encoding *encoding;
encoding = mbfl_no2encoding(no_encoding);
if (encoding == NULL) {
return "";
} else {
return encoding->name;
}
}
const mbfl_encoding **
mbfl_get_supported_encodings(void)
{
return mbfl_encoding_ptr_list;
}
const char *
mbfl_no2preferred_mime_name(enum mbfl_no_encoding no_encoding)
{
const mbfl_encoding *encoding;
encoding = mbfl_no2encoding(no_encoding);
if (encoding != NULL && encoding->mime_name != NULL && encoding->mime_name[0] != '\0') {
return encoding->mime_name;
} else {
return NULL;
}
}
int
mbfl_is_support_encoding(const char *name)
{
const mbfl_encoding *encoding;
encoding = mbfl_name2encoding(name);
if (encoding == NULL) {
return 0;
} else {
return 1;
}
}