Annotation of embedaddon/php/ext/mbstring/libmbfl/mbfl/mbfl_encoding.c, revision 1.1.1.1
1.1 misho 1: /*
2: * "streamable kanji code filter and converter"
3: * Copyright (c) 1998-2002 HappySize, Inc. All rights reserved.
4: *
5: * LICENSE NOTICES
6: *
7: * This file is part of "streamable kanji code filter and converter",
8: * which is distributed under the terms of GNU Lesser General Public
9: * License (version 2) as published by the Free Software Foundation.
10: *
11: * This software is distributed in the hope that it will be useful,
12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: * GNU Lesser General Public License for more details.
15: *
16: * You should have received a copy of the GNU Lesser General Public
17: * License along with "streamable kanji code filter and converter";
18: * if not, write to the Free Software Foundation, Inc., 59 Temple Place,
19: * Suite 330, Boston, MA 02111-1307 USA
20: *
21: * The author of this file:
22: *
23: */
24: /*
25: * The source code included in this files was separated from mbfilter.c
26: * by Moriyoshi Koizumi <moriyoshi@php.net> on 20 Dec 2002. The file
27: * mbfilter.c is included in this package .
28: *
29: */
30:
31: #ifdef HAVE_CONFIG_H
32: #include "config.h"
33: #endif
34:
35: #ifdef HAVE_STDDEF_H
36: #include <stddef.h>
37: #endif
38:
39: #ifdef HAVE_STRING_H
40: #include <string.h>
41: #endif
42:
43: #ifdef HAVE_STRINGS_H
44: #include <strings.h>
45: #endif
46:
47: #include "mbfl_encoding.h"
48: #include "mbfilter_pass.h"
49: #include "mbfilter_8bit.h"
50: #include "mbfilter_wchar.h"
51:
52: #include "filters/mbfilter_euc_cn.h"
53: #include "filters/mbfilter_hz.h"
54: #include "filters/mbfilter_euc_tw.h"
55: #include "filters/mbfilter_big5.h"
56: #include "filters/mbfilter_uhc.h"
57: #include "filters/mbfilter_euc_kr.h"
58: #include "filters/mbfilter_iso2022_kr.h"
59: #include "filters/mbfilter_sjis.h"
60: #include "filters/mbfilter_sjis_open.h"
61: #include "filters/mbfilter_cp51932.h"
62: #include "filters/mbfilter_jis.h"
63: #include "filters/mbfilter_iso2022_jp_ms.h"
64: #include "filters/mbfilter_euc_jp.h"
65: #include "filters/mbfilter_euc_jp_win.h"
66: #include "filters/mbfilter_ascii.h"
67: #include "filters/mbfilter_koi8r.h"
68: #include "filters/mbfilter_koi8u.h"
69: #include "filters/mbfilter_cp866.h"
70: #include "filters/mbfilter_cp932.h"
71: #include "filters/mbfilter_cp936.h"
72: #include "filters/mbfilter_cp1251.h"
73: #include "filters/mbfilter_cp1252.h"
74: #include "filters/mbfilter_cp1254.h"
75: #include "filters/mbfilter_cp5022x.h"
76: #include "filters/mbfilter_iso8859_1.h"
77: #include "filters/mbfilter_iso8859_2.h"
78: #include "filters/mbfilter_iso8859_3.h"
79: #include "filters/mbfilter_iso8859_4.h"
80: #include "filters/mbfilter_iso8859_5.h"
81: #include "filters/mbfilter_iso8859_6.h"
82: #include "filters/mbfilter_iso8859_7.h"
83: #include "filters/mbfilter_iso8859_8.h"
84: #include "filters/mbfilter_iso8859_9.h"
85: #include "filters/mbfilter_iso8859_10.h"
86: #include "filters/mbfilter_iso8859_13.h"
87: #include "filters/mbfilter_iso8859_14.h"
88: #include "filters/mbfilter_iso8859_15.h"
89: #include "filters/mbfilter_iso8859_16.h"
90: #include "filters/mbfilter_base64.h"
91: #include "filters/mbfilter_qprint.h"
92: #include "filters/mbfilter_uuencode.h"
93: #include "filters/mbfilter_7bit.h"
94: #include "filters/mbfilter_utf7.h"
95: #include "filters/mbfilter_utf7imap.h"
96: #include "filters/mbfilter_utf8.h"
97: #include "filters/mbfilter_utf16.h"
98: #include "filters/mbfilter_utf32.h"
99: #include "filters/mbfilter_byte2.h"
100: #include "filters/mbfilter_byte4.h"
101: #include "filters/mbfilter_ucs4.h"
102: #include "filters/mbfilter_ucs2.h"
103: #include "filters/mbfilter_htmlent.h"
104: #include "filters/mbfilter_armscii8.h"
105: #include "filters/mbfilter_cp850.h"
106:
107: #ifndef HAVE_STRCASECMP
108: #ifdef HAVE_STRICMP
109: #define strcasecmp stricmp
110: #endif
111: #endif
112:
113:
114: static const char *mbfl_encoding_auto_aliases[] = {"unknown", NULL};
115:
116: static const mbfl_encoding mbfl_encoding_auto = {
117: mbfl_no_encoding_auto,
118: "auto",
119: NULL,
120: (const char *(*)[])&mbfl_encoding_auto_aliases,
121: NULL,
122: 0
123: };
124:
125: static const mbfl_encoding *mbfl_encoding_ptr_list[] = {
126: &mbfl_encoding_pass,
127: &mbfl_encoding_auto,
128: &mbfl_encoding_wchar,
129: &mbfl_encoding_byte2be,
130: &mbfl_encoding_byte2le,
131: &mbfl_encoding_byte4be,
132: &mbfl_encoding_byte4le,
133: &mbfl_encoding_base64,
134: &mbfl_encoding_uuencode,
135: &mbfl_encoding_html_ent,
136: &mbfl_encoding_qprint,
137: &mbfl_encoding_7bit,
138: &mbfl_encoding_8bit,
139: &mbfl_encoding_ucs4,
140: &mbfl_encoding_ucs4be,
141: &mbfl_encoding_ucs4le,
142: &mbfl_encoding_ucs2,
143: &mbfl_encoding_ucs2be,
144: &mbfl_encoding_ucs2le,
145: &mbfl_encoding_utf32,
146: &mbfl_encoding_utf32be,
147: &mbfl_encoding_utf32le,
148: &mbfl_encoding_utf16,
149: &mbfl_encoding_utf16be,
150: &mbfl_encoding_utf16le,
151: &mbfl_encoding_utf8,
152: &mbfl_encoding_utf7,
153: &mbfl_encoding_utf7imap,
154: &mbfl_encoding_ascii,
155: &mbfl_encoding_euc_jp,
156: &mbfl_encoding_sjis,
157: &mbfl_encoding_eucjp_win,
158: &mbfl_encoding_sjis_open,
159: &mbfl_encoding_cp932,
160: &mbfl_encoding_cp51932,
161: &mbfl_encoding_jis,
162: &mbfl_encoding_2022jp,
163: &mbfl_encoding_2022jpms,
164: &mbfl_encoding_cp1252,
165: &mbfl_encoding_cp1254,
166: &mbfl_encoding_8859_1,
167: &mbfl_encoding_8859_2,
168: &mbfl_encoding_8859_3,
169: &mbfl_encoding_8859_4,
170: &mbfl_encoding_8859_5,
171: &mbfl_encoding_8859_6,
172: &mbfl_encoding_8859_7,
173: &mbfl_encoding_8859_8,
174: &mbfl_encoding_8859_9,
175: &mbfl_encoding_8859_10,
176: &mbfl_encoding_8859_13,
177: &mbfl_encoding_8859_14,
178: &mbfl_encoding_8859_15,
179: &mbfl_encoding_8859_16,
180: &mbfl_encoding_euc_cn,
181: &mbfl_encoding_cp936,
182: &mbfl_encoding_hz,
183: &mbfl_encoding_euc_tw,
184: &mbfl_encoding_big5,
185: &mbfl_encoding_euc_kr,
186: &mbfl_encoding_uhc,
187: &mbfl_encoding_2022kr,
188: &mbfl_encoding_cp1251,
189: &mbfl_encoding_cp866,
190: &mbfl_encoding_koi8r,
191: &mbfl_encoding_koi8u,
192: &mbfl_encoding_armscii8,
193: &mbfl_encoding_cp850,
194: &mbfl_encoding_jis_ms,
195: &mbfl_encoding_cp50220,
196: &mbfl_encoding_cp50220raw,
197: &mbfl_encoding_cp50221,
198: &mbfl_encoding_cp50222,
199: NULL
200: };
201:
202: /* encoding resolver */
203: const mbfl_encoding *
204: mbfl_name2encoding(const char *name)
205: {
206: const mbfl_encoding *encoding;
207: int i, j;
208:
209: if (name == NULL) {
210: return NULL;
211: }
212:
213: i = 0;
214: while ((encoding = mbfl_encoding_ptr_list[i++]) != NULL){
215: if (strcasecmp(encoding->name, name) == 0) {
216: return encoding;
217: }
218: }
219:
220: /* serch MIME charset name */
221: i = 0;
222: while ((encoding = mbfl_encoding_ptr_list[i++]) != NULL) {
223: if (encoding->mime_name != NULL) {
224: if (strcasecmp(encoding->mime_name, name) == 0) {
225: return encoding;
226: }
227: }
228: }
229:
230: /* serch aliases */
231: i = 0;
232: while ((encoding = mbfl_encoding_ptr_list[i++]) != NULL) {
233: if (encoding->aliases != NULL) {
234: j = 0;
235: while ((*encoding->aliases)[j] != NULL) {
236: if (strcasecmp((*encoding->aliases)[j], name) == 0) {
237: return encoding;
238: }
239: j++;
240: }
241: }
242: }
243:
244: return NULL;
245: }
246:
247: const mbfl_encoding *
248: mbfl_no2encoding(enum mbfl_no_encoding no_encoding)
249: {
250: const mbfl_encoding *encoding;
251: int i;
252:
253: i = 0;
254: while ((encoding = mbfl_encoding_ptr_list[i++]) != NULL){
255: if (encoding->no_encoding == no_encoding) {
256: return encoding;
257: }
258: }
259:
260: return NULL;
261: }
262:
263: enum mbfl_no_encoding
264: mbfl_name2no_encoding(const char *name)
265: {
266: const mbfl_encoding *encoding;
267:
268: encoding = mbfl_name2encoding(name);
269: if (encoding == NULL) {
270: return mbfl_no_encoding_invalid;
271: } else {
272: return encoding->no_encoding;
273: }
274: }
275:
276: const char *
277: mbfl_no_encoding2name(enum mbfl_no_encoding no_encoding)
278: {
279: const mbfl_encoding *encoding;
280:
281: encoding = mbfl_no2encoding(no_encoding);
282: if (encoding == NULL) {
283: return "";
284: } else {
285: return encoding->name;
286: }
287: }
288:
289: const mbfl_encoding **
290: mbfl_get_supported_encodings(void)
291: {
292: return mbfl_encoding_ptr_list;
293: }
294:
295: const char *
296: mbfl_no2preferred_mime_name(enum mbfl_no_encoding no_encoding)
297: {
298: const mbfl_encoding *encoding;
299:
300: encoding = mbfl_no2encoding(no_encoding);
301: if (encoding != NULL && encoding->mime_name != NULL && encoding->mime_name[0] != '\0') {
302: return encoding->mime_name;
303: } else {
304: return NULL;
305: }
306: }
307:
308: int
309: mbfl_is_support_encoding(const char *name)
310: {
311: const mbfl_encoding *encoding;
312:
313: encoding = mbfl_name2encoding(name);
314: if (encoding == NULL) {
315: return 0;
316: } else {
317: return 1;
318: }
319: }
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