![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to mbfilter_iso2022_jp_ms.c CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / php / ext / mbstring / libmbfl / filters|
Return to mbfilter_iso2022_jp_ms.c CVS log | Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / php / ext / mbstring / libmbfl / filters |
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_ja.c
26: * by moriyoshi koizumi <moriyoshi@php.net> on 4 dec 2002.
27: *
28: */
29:
30: #ifdef HAVE_CONFIG_H
31: #include "config.h"
32: #endif
33:
34: #include "mbfilter.h"
35: #include "mbfilter_iso2022_jp_ms.h"
36:
37: #include "unicode_table_cp932_ext.h"
38: #include "unicode_table_jis.h"
39: #include "cp932_table.h"
40:
1.1.1.2 ! misho 41: int mbfl_filt_ident_2022jpms(int c, mbfl_identify_filter *filter);
1.1 misho 42:
43: static const char *mbfl_encoding_2022jpms_aliases[] = {"ISO2022JPMS", NULL};
44:
45: const mbfl_encoding mbfl_encoding_2022jpms = {
46: mbfl_no_encoding_2022jpms,
47: "ISO-2022-JP-MS",
48: "ISO-2022-JP",
49: (const char *(*)[])&mbfl_encoding_2022jpms_aliases,
50: NULL,
1.1.1.2 ! misho 51: MBFL_ENCTYPE_MBCS | MBFL_ENCTYPE_SHFTCODE | MBFL_ENCTYPE_GL_UNSAFE
1.1 misho 52: };
53:
54: const struct mbfl_identify_vtbl vtbl_identify_2022jpms = {
55: mbfl_no_encoding_2022jpms,
56: mbfl_filt_ident_common_ctor,
57: mbfl_filt_ident_common_dtor,
58: mbfl_filt_ident_2022jpms
59: };
60:
61: const struct mbfl_convert_vtbl vtbl_2022jpms_wchar = {
62: mbfl_no_encoding_2022jpms,
63: mbfl_no_encoding_wchar,
64: mbfl_filt_conv_common_ctor,
65: mbfl_filt_conv_common_dtor,
66: mbfl_filt_conv_2022jpms_wchar,
67: mbfl_filt_conv_common_flush
68: };
69:
70: const struct mbfl_convert_vtbl vtbl_wchar_2022jpms = {
71: mbfl_no_encoding_wchar,
72: mbfl_no_encoding_2022jpms,
73: mbfl_filt_conv_common_ctor,
74: mbfl_filt_conv_common_dtor,
75: mbfl_filt_conv_wchar_2022jpms,
76: mbfl_filt_conv_any_2022jpms_flush
77: };
78:
79: #define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
80:
81: #define sjistoidx(c1, c2) \
82: (((c1) > 0x9f) \
83: ? (((c1) - 0xc1) * 188 + (c2) - (((c2) > 0x7e) ? 0x41 : 0x40)) \
84: : (((c1) - 0x81) * 188 + (c2) - (((c2) > 0x7e) ? 0x41 : 0x40)))
85: #define idxtojis1(c) (((c) / 94) + 0x21)
86: #define idxtojis2(c) (((c) % 94) + 0x21)
87:
88: /*
89: * ISO-2022-JP-MS => wchar
90: */
91: int
92: mbfl_filt_conv_2022jpms_wchar(int c, mbfl_convert_filter *filter)
93: {
94: int c1, s, w;
95:
96: retry:
97: switch (filter->status & 0xf) {
98: /* case 0x00: ASCII */
99: /* case 0x10: X 0201 latin */
100: /* case 0x20: X 0201 kana */
101: /* case 0x80: X 0208 */
102: /* case 0xa0: UDC */
103: case 0:
104: if (c == 0x1b) {
105: filter->status += 2;
106: } else if (filter->status == 0x20 && c > 0x20 && c < 0x60) { /* kana */
107: CK((*filter->output_function)(0xff40 + c, filter->data));
108: } else if ((filter->status == 0x80 || filter->status == 0xa0) && c > 0x20 && c < 0x80) { /* kanji first char */
109: filter->cache = c;
110: filter->status += 1;
111: } else if (c >= 0 && c < 0x80) { /* latin, CTLs */
112: CK((*filter->output_function)(c, filter->data));
113: } else if (c > 0xa0 && c < 0xe0) { /* GR kana */
114: CK((*filter->output_function)(0xfec0 + c, filter->data));
115: } else {
116: w = c & MBFL_WCSGROUP_MASK;
117: w |= MBFL_WCSGROUP_THROUGH;
118: CK((*filter->output_function)(w, filter->data));
119: }
120: break;
121:
122: /* case 0x81: X 0208 second char */
123: /* case 0xa1: UDC second char */
124: case 1:
125: w = 0;
126: filter->status &= ~0xf;
127: c1 = filter->cache;
128: if (c > 0x20 && c < 0x7f) {
129: s = (c1 - 0x21)*94 + c - 0x21;
130: if (filter->status == 0x80) {
131: if (s <= 137) {
132: if (s == 31) {
133: w = 0xff3c; /* FULLWIDTH REVERSE SOLIDUS */
134: } else if (s == 32) {
135: w = 0xff5e; /* FULLWIDTH TILDE */
136: } else if (s == 33) {
137: w = 0x2225; /* PARALLEL TO */
138: } else if (s == 60) {
139: w = 0xff0d; /* FULLWIDTH HYPHEN-MINUS */
140: } else if (s == 80) {
141: w = 0xffe0; /* FULLWIDTH CENT SIGN */
142: } else if (s == 81) {
143: w = 0xffe1; /* FULLWIDTH POUND SIGN */
144: } else if (s == 137) {
145: w = 0xffe2; /* FULLWIDTH NOT SIGN */
146: }
147: }
148: if (w == 0) {
149: if (s >= cp932ext1_ucs_table_min && s < cp932ext1_ucs_table_max) { /* vendor ext1 (13ku) */
150: w = cp932ext1_ucs_table[s - cp932ext1_ucs_table_min];
151: } else if (s >= 0 && s < jisx0208_ucs_table_size) {
152: w = jisx0208_ucs_table[s];
153: } else if (s >= cp932ext2_ucs_table_min && s < cp932ext2_ucs_table_max) { /* vendor ext2 (89ku - 92ku) */
154: w = cp932ext2_ucs_table[s - cp932ext2_ucs_table_min];
155: } else {
156: w = 0;
157: }
158: }
159: if (w <= 0) {
160: w = (c1 << 8) | c;
161: w &= MBFL_WCSPLANE_MASK;
162: w |= MBFL_WCSPLANE_JIS0208;
163: }
164: CK((*filter->output_function)(w, filter->data));
165: } else {
166: if (c1 > 0x20 && c1 < 0x35) {
167: w = 0xe000 + (c1 - 0x21)*94 + c - 0x21;
168: }
169: if (w <= 0) {
170: w = (((c1 - 0x21) + 0x7f) << 8) | c;
171: w &= MBFL_WCSPLANE_MASK;
172: w |= MBFL_WCSPLANE_JIS0208;
173: }
174: CK((*filter->output_function)(w, filter->data));
175: }
176: } else if (c == 0x1b) {
177: filter->status += 2;
178: } else if ((c >= 0 && c < 0x21) || c == 0x7f) { /* CTLs */
179: CK((*filter->output_function)(c, filter->data));
180: } else {
181: w = (c1 << 8) | c;
182: w &= MBFL_WCSGROUP_MASK;
183: w |= MBFL_WCSGROUP_THROUGH;
184: CK((*filter->output_function)(w, filter->data));
185: }
186: break;
187:
188: /* ESC */
189: /* case 0x02: */
190: /* case 0x12: */
191: /* case 0x22: */
192: /* case 0x82: */
193: /* case 0xa2: */
194: case 2:
195: if (c == 0x24) { /* '$' */
196: filter->status++;
197: } else if (c == 0x28) { /* '(' */
198: filter->status += 3;
199: } else {
200: filter->status &= ~0xf;
201: CK((*filter->output_function)(0x1b, filter->data));
202: goto retry;
203: }
204: break;
205:
206: /* ESC $ */
207: /* case 0x03: */
208: /* case 0x13: */
209: /* case 0x23: */
210: /* case 0x83: */
211: /* case 0xa3: */
212: case 3:
213: if (c == 0x40 || c == 0x42) { /* '@' or 'B' */
214: filter->status = 0x80;
215: } else if (c == 0x28) { /* '(' */
216: filter->status++;
217: } else {
218: filter->status &= ~0xf;
219: CK((*filter->output_function)(0x1b, filter->data));
220: CK((*filter->output_function)(0x24, filter->data));
221: goto retry;
222: }
223: break;
224:
225: /* ESC $ ( */
226: /* case 0x04: */
227: /* case 0x14: */
228: /* case 0x24: */
229: /* case 0x84: */
230: /* case 0xa4: */
231: case 4:
232: if (c == 0x40 || c == 0x42) { /* '@' or 'B' */
233: filter->status = 0x80;
234: } else if (c == 0x3f) { /* '?' */
235: filter->status = 0xa0;
236: } else {
237: filter->status &= ~0xf;
238: CK((*filter->output_function)(0x1b, filter->data));
239: CK((*filter->output_function)(0x24, filter->data));
240: CK((*filter->output_function)(0x28, filter->data));
241: goto retry;
242: }
243: break;
244:
245: /* ESC ( */
246: /* case 0x05: */
247: /* case 0x15: */
248: /* case 0x25: */
249: /* case 0x85: */
250: /* case 0xa5: */
251: case 5:
252: if (c == 0x42) { /* 'B' */
253: filter->status = 0;
254: } else if (c == 0x4a) { /* 'J' */
255: filter->status = 0;
256: } else if (c == 0x49) { /* 'I' */
257: filter->status = 0x20;
258: } else {
259: filter->status &= ~0xf;
260: CK((*filter->output_function)(0x1b, filter->data));
261: CK((*filter->output_function)(0x28, filter->data));
262: goto retry;
263: }
264: break;
265:
266: default:
267: filter->status = 0;
268: break;
269: }
270:
271: return c;
272: }
273:
274: static int
275: cp932ext3_cp932ext2_jis(int c)
276: {
277: int idx;
278:
279: idx = sjistoidx(0xfa, 0x40) + c;
280: if (idx >= sjistoidx(0xfa, 0x5c))
281: idx -= sjistoidx(0xfa, 0x5c) - sjistoidx(0xed, 0x40);
282: else if (idx >= sjistoidx(0xfa, 0x55))
283: idx -= sjistoidx(0xfa, 0x55) - sjistoidx(0xee, 0xfa);
284: else if (idx >= sjistoidx(0xfa, 0x40))
285: idx -= sjistoidx(0xfa, 0x40) - sjistoidx(0xee, 0xef);
286: return idxtojis1(idx) << 8 | idxtojis2(idx);
287: }
288:
289: /*
290: * wchar => ISO-2022-JP-MS
291: */
292: int
293: mbfl_filt_conv_wchar_2022jpms(int c, mbfl_convert_filter *filter)
294: {
295: int c1, c2, s1, s2;
296:
297: s1 = 0;
298: s2 = 0;
299: if (c >= ucs_a1_jis_table_min && c < ucs_a1_jis_table_max) {
300: s1 = ucs_a1_jis_table[c - ucs_a1_jis_table_min];
301: } else if (c >= ucs_a2_jis_table_min && c < ucs_a2_jis_table_max) {
302: s1 = ucs_a2_jis_table[c - ucs_a2_jis_table_min];
303: } else if (c >= ucs_i_jis_table_min && c < ucs_i_jis_table_max) {
304: s1 = ucs_i_jis_table[c - ucs_i_jis_table_min];
305: } else if (c >= ucs_r_jis_table_min && c < ucs_r_jis_table_max) {
306: s1 = ucs_r_jis_table[c - ucs_r_jis_table_min];
307: } else if (c >= 0xe000 && c < (0xe000 + 20*94)) { /* user (95ku - 114ku) */
308: s1 = c - 0xe000;
309: c1 = s1/94 + 0x7f;
310: c2 = s1%94 + 0x21;
311: s1 = (c1 << 8) | c2;
312: }
313: if (s1 <= 0) {
314: c1 = c & ~MBFL_WCSPLANE_MASK;
315: if (c1 == MBFL_WCSPLANE_WINCP932) {
316: s1 = c & MBFL_WCSPLANE_MASK;
317: s2 = 1;
318: } else if (c1 == MBFL_WCSPLANE_JIS0208) {
319: s1 = c & MBFL_WCSPLANE_MASK;
320: } else if (c1 == MBFL_WCSPLANE_JIS0212) {
321: s1 = c & MBFL_WCSPLANE_MASK;
322: s1 |= 0x8080;
323: } else if (c == 0xa5) { /* YEN SIGN */
324: s1 = 0x216f; /* FULLWIDTH YEN SIGN */
325: } else if (c == 0x203e) { /* OVER LINE */
326: s1 = 0x2131; /* FULLWIDTH MACRON */
327: } else if (c == 0xff3c) { /* FULLWIDTH REVERSE SOLIDUS */
328: s1 = 0x2140;
329: } else if (c == 0xff5e) { /* FULLWIDTH TILDE */
330: s1 = 0x2141;
331: } else if (c == 0x2225) { /* PARALLEL TO */
332: s1 = 0x2142;
333: } else if (c == 0xff0d) { /* FULLWIDTH HYPHEN-MINUS */
334: s1 = 0x215d;
335: } else if (c == 0xffe0) { /* FULLWIDTH CENT SIGN */
336: s1 = 0x2171;
337: } else if (c == 0xffe1) { /* FULLWIDTH POUND SIGN */
338: s1 = 0x2172;
339: } else if (c == 0xffe2) { /* FULLWIDTH NOT SIGN */
340: s1 = 0x224c;
341: }
342: }
343: if ((s1 <= 0) || (s1 >= 0xa1a1 && s2 == 0)) { /* not found or X 0212 */
344: s1 = -1;
345: c1 = 0;
346: c2 = cp932ext1_ucs_table_max - cp932ext1_ucs_table_min;
347: while (c1 < c2) { /* CP932 vendor ext1 (13ku) */
348: if (c == cp932ext1_ucs_table[c1]) {
349: s1 = ((c1/94 + 0x2d) << 8) + (c1%94 + 0x21);
350: break;
351: }
352: c1++;
353: }
354: if (s1 <= 0) {
355: c1 = 0;
356: c2 = cp932ext3_ucs_table_max - cp932ext3_ucs_table_min;
357: while (c1 < c2) { /* CP932 vendor ext3 (115ku - 119ku) */
358: if (c == cp932ext3_ucs_table[c1]) {
359: s1 = cp932ext3_cp932ext2_jis(c1);
360: break;
361: }
362: c1++;
363: }
364: }
365: if (c == 0) {
366: s1 = 0;
367: } else if (s1 <= 0) {
368: s1 = -1;
369: }
370: }
371: if (s1 >= 0) {
372: if (s1 < 0x80) { /* latin */
373: if ((filter->status & 0xff00) != 0) {
374: CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
375: CK((*filter->output_function)(0x28, filter->data)); /* '(' */
376: CK((*filter->output_function)(0x42, filter->data)); /* 'B' */
377: }
378: CK((*filter->output_function)(s1, filter->data));
379: filter->status = 0;
380: } else if (s1 > 0xa0 && s1 < 0xe0) { /* kana */
381: if ((filter->status & 0xff00) != 0x100) {
382: CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
383: CK((*filter->output_function)(0x28, filter->data)); /* '(' */
384: CK((*filter->output_function)(0x49, filter->data)); /* 'I' */
385: }
386: filter->status = 0x100;
387: CK((*filter->output_function)(s1 & 0x7f, filter->data));
388: } else if (s1 < 0x7e7f) { /* X 0208 */
389: if ((filter->status & 0xff00) != 0x200) {
390: CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
391: CK((*filter->output_function)(0x24, filter->data)); /* '$' */
392: CK((*filter->output_function)(0x42, filter->data)); /* 'B' */
393: }
394: filter->status = 0x200;
395: CK((*filter->output_function)((s1 >> 8) & 0xff, filter->data));
396: CK((*filter->output_function)(s1 & 0x7f, filter->data));
397: } else if (s1 < 0x927f) { /* UDC */
398: if ((filter->status & 0xff00) != 0x800) {
399: CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
400: CK((*filter->output_function)(0x24, filter->data)); /* '$' */
401: CK((*filter->output_function)(0x28, filter->data)); /* '(' */
402: CK((*filter->output_function)(0x3f, filter->data)); /* '?' */
403: }
404: filter->status = 0x800;
405: CK((*filter->output_function)(((s1 >> 8) - 0x5e) & 0x7f, filter->data));
406: CK((*filter->output_function)(s1 & 0x7f, filter->data));
407: }
408: } else {
409: if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
410: CK(mbfl_filt_conv_illegal_output(c, filter));
411: }
412: }
413:
414: return c;
415: }
416:
417: int
418: mbfl_filt_conv_any_2022jpms_flush(mbfl_convert_filter *filter)
419: {
420: /* back to latin */
421: if ((filter->status & 0xff00) != 0) {
422: CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
423: CK((*filter->output_function)(0x28, filter->data)); /* '(' */
424: CK((*filter->output_function)(0x42, filter->data)); /* 'B' */
425: }
426:
427: filter->status &= 0xff;
428:
429: if (filter->flush_function != NULL) {
430: return (*filter->flush_function)(filter->data);
431: }
432:
433: return 0;
434: }
435:
1.1.1.2 ! misho 436: int mbfl_filt_ident_2022jpms(int c, mbfl_identify_filter *filter)
1.1 misho 437: {
438: retry:
439: switch (filter->status & 0xf) {
440: /* case 0x00: ASCII */
441: /* case 0x10: X 0201 latin */
442: /* case 0x20: X 0201 kana */
443: /* case 0x80: X 0208 */
444: /* case 0xa0: X UDC */
445: case 0:
446: if (c == 0x1b) {
447: filter->status += 2;
448: } else if ((filter->status == 0x80 || filter->status == 0xa0) && c > 0x20 && c < 0x80) { /* kanji first char */
449: filter->status += 1;
450: } else if (c >= 0 && c < 0x80) { /* latin, CTLs */
451: ;
452: } else {
453: filter->flag = 1; /* bad */
454: }
455: break;
456:
457: /* case 0x81: X 0208 second char */
458: /* case 0xa1: UDC second char */
459: case 1:
460: filter->status &= ~0xf;
461: if (c == 0x1b) {
462: goto retry;
463: } else if (c < 0x21 || c > 0x7e) { /* bad */
464: filter->flag = 1;
465: }
466: break;
467:
468: /* ESC */
469: case 2:
470: if (c == 0x24) { /* '$' */
471: filter->status++;
472: } else if (c == 0x28) { /* '(' */
473: filter->status += 3;
474: } else {
475: filter->flag = 1; /* bad */
476: filter->status &= ~0xf;
477: goto retry;
478: }
479: break;
480:
481: /* ESC $ */
482: case 3:
483: if (c == 0x40 || c == 0x42) { /* '@' or 'B' */
484: filter->status = 0x80;
485: } else if (c == 0x28) { /* '(' */
486: filter->status++;
487: } else {
488: filter->flag = 1; /* bad */
489: filter->status &= ~0xf;
490: goto retry;
491: }
492: break;
493:
494: /* ESC $ ( */
495: case 4:
496: if (c == 0x40 || c == 0x42) { /* '@' or 'B' */
497: filter->status = 0x80;
498: } else if (c == 0x3f) { /* '?' */
499: filter->status = 0xa0;
500: } else {
501: filter->flag = 1; /* bad */
502: filter->status &= ~0xf;
503: goto retry;
504: }
505: break;
506:
507: /* ESC ( */
508: case 5:
509: if (c == 0x42) { /* 'B' */
510: filter->status = 0;
511: } else if (c == 0x4a) { /* 'J' */
512: filter->status = 0;
513: } else if (c == 0x49) { /* 'I' */
514: filter->status = 0x20;
515: } else {
516: filter->flag = 1; /* bad */
517: filter->status &= ~0xf;
518: goto retry;
519: }
520: break;
521:
522: default:
523: filter->status = 0;
524: break;
525: }
526:
527: return c;
528: }