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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_euc_jp_win.h"
36:
37: #include "unicode_table_cp932_ext.h"
38: #include "unicode_table_jis.h"
39: #include "cp932_table.h"
40:
41: static int mbfl_filt_ident_eucjp_win(int c, mbfl_identify_filter *filter);
42:
43: static const unsigned char mblen_table_eucjp[] = { /* 0xA1-0xFE */
44: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
45: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
46: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
47: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
48: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
49: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
50: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
51: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
52: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
53: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
54: 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
55: 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
56: 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
57: 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
58: 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
59: 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1
60: };
61:
62:
63: static const char *mbfl_encoding_eucjp_win_aliases[] = {"eucJP-open",
64: "eucJP-ms", NULL};
65:
66: const struct mbfl_identify_vtbl vtbl_identify_eucjpwin = {
67: mbfl_no_encoding_eucjp_win,
68: mbfl_filt_ident_common_ctor,
69: mbfl_filt_ident_common_dtor,
70: mbfl_filt_ident_eucjp_win
71: };
72:
73: const mbfl_encoding mbfl_encoding_eucjp_win = {
74: mbfl_no_encoding_eucjp_win,
75: "eucJP-win",
76: "EUC-JP",
77: (const char *(*)[])&mbfl_encoding_eucjp_win_aliases,
78: mblen_table_eucjp,
79: MBFL_ENCTYPE_MBCS
80: };
81:
82: const struct mbfl_convert_vtbl vtbl_eucjpwin_wchar = {
83: mbfl_no_encoding_eucjp_win,
84: mbfl_no_encoding_wchar,
85: mbfl_filt_conv_common_ctor,
86: mbfl_filt_conv_common_dtor,
87: mbfl_filt_conv_eucjpwin_wchar,
88: mbfl_filt_conv_common_flush
89: };
90:
91: const struct mbfl_convert_vtbl vtbl_wchar_eucjpwin = {
92: mbfl_no_encoding_wchar,
93: mbfl_no_encoding_eucjp_win,
94: mbfl_filt_conv_common_ctor,
95: mbfl_filt_conv_common_dtor,
96: mbfl_filt_conv_wchar_eucjpwin,
97: mbfl_filt_conv_common_flush
98: };
99:
100: #define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
101:
102: /*
103: * eucJP-win => wchar
104: */
105: int
106: mbfl_filt_conv_eucjpwin_wchar(int c, mbfl_convert_filter *filter)
107: {
108: int c1, s, w, n;
109:
110: switch (filter->status) {
111: case 0:
112: if (c >= 0 && c < 0x80) { /* latin */
113: CK((*filter->output_function)(c, filter->data));
114: } else if (c > 0xa0 && c < 0xff) { /* CP932 first char */
115: filter->status = 1;
116: filter->cache = c;
117: } else if (c == 0x8e) { /* kana first char */
118: filter->status = 2;
119: } else if (c == 0x8f) { /* X 0212 first char */
120: filter->status = 3;
121: } else {
122: w = c & MBFL_WCSGROUP_MASK;
123: w |= MBFL_WCSGROUP_THROUGH;
124: CK((*filter->output_function)(w, filter->data));
125: }
126: break;
127:
128: case 1: /* got first half */
129: filter->status = 0;
130: c1 = filter->cache;
131: if (c > 0xa0 && c < 0xff) {
132: w = 0;
133: s = (c1 - 0xa1)*94 + c - 0xa1;
134: if (s <= 137) {
135: if (s == 31) {
136: w = 0xff3c; /* FULLWIDTH REVERSE SOLIDUS */
137: } else if (s == 32) {
138: w = 0xff5e; /* FULLWIDTH TILDE */
139: } else if (s == 33) {
140: w = 0x2225; /* PARALLEL TO */
141: } else if (s == 60) {
142: w = 0xff0d; /* FULLWIDTH HYPHEN-MINUS */
143: } else if (s == 80) {
144: w = 0xffe0; /* FULLWIDTH CENT SIGN */
145: } else if (s == 81) {
146: w = 0xffe1; /* FULLWIDTH POUND SIGN */
147: } else if (s == 137) {
148: w = 0xffe2; /* FULLWIDTH NOT SIGN */
149: }
150: }
151: if (w == 0) {
152: if (s >= cp932ext1_ucs_table_min && s < cp932ext1_ucs_table_max) { /* vendor ext1 (13ku) */
153: w = cp932ext1_ucs_table[s - cp932ext1_ucs_table_min];
154: } else if (s >= 0 && s < jisx0208_ucs_table_size) { /* X 0208 */
155: w = jisx0208_ucs_table[s];
156: } else if (s >= (84 * 94)) { /* user (85ku - 94ku) */
157: w = s - (84 * 94) + 0xe000;
158: }
159: }
160: if (w <= 0) {
161: w = ((c1 & 0x7f) << 8) | (c & 0x7f);
162: w &= MBFL_WCSPLANE_MASK;
163: w |= MBFL_WCSPLANE_WINCP932;
164: }
165: CK((*filter->output_function)(w, filter->data));
166: } else if ((c >= 0 && c < 0x21) || c == 0x7f) { /* CTLs */
167: CK((*filter->output_function)(c, filter->data));
168: } else {
169: w = (c1 << 8) | c;
170: w &= MBFL_WCSGROUP_MASK;
171: w |= MBFL_WCSGROUP_THROUGH;
172: CK((*filter->output_function)(w, filter->data));
173: }
174: break;
175:
176: case 2: /* got 0x8e, X0201 kana */
177: filter->status = 0;
178: if (c > 0xa0 && c < 0xe0) {
179: w = 0xfec0 + c;
180: CK((*filter->output_function)(w, filter->data));
181: } else if ((c >= 0 && c < 0x21) || c == 0x7f) { /* CTLs */
182: CK((*filter->output_function)(c, filter->data));
183: } else {
184: w = 0x8e00 | c;
185: w &= MBFL_WCSGROUP_MASK;
186: w |= MBFL_WCSGROUP_THROUGH;
187: CK((*filter->output_function)(w, filter->data));
188: }
189: break;
190:
191: case 3: /* got 0x8f, X 0212 first char */
192: if ((c >= 0 && c < 0x21) || c == 0x7f) { /* CTLs */
193: CK((*filter->output_function)(c, filter->data));
194: filter->status = 0;
195: } else {
196: filter->status++;
197: filter->cache = c;
198: }
199: break;
200: case 4: /* got 0x8f, X 0212 second char */
201: filter->status = 0;
202: c1 = filter->cache;
203: if (c1 > 0xa0 && c1 < 0xff && c > 0xa0 && c < 0xff) {
204: s = (c1 - 0xa1)*94 + c - 0xa1;
205: if (s >= 0 && s < jisx0212_ucs_table_size) {
206: w = jisx0212_ucs_table[s];
207: if (w == 0x007e) {
208: w = 0xff5e; /* FULLWIDTH TILDE */
209: }
210: } else if (s >= (82*94) && s < (84*94)) { /* vender ext3 (83ku - 84ku) <-> CP932 (115ku -120ku) */
211: s = (c1<< 8) | c;
212: w = 0;
213: n = 0;
214: while (n < cp932ext3_eucjp_table_size) {
215: if (s == cp932ext3_eucjp_table[n]) {
216: if (n < (cp932ext3_ucs_table_max - cp932ext3_ucs_table_min)) {
217: w = cp932ext3_ucs_table[n];
218: }
219: break;
220: }
221: n++;
222: }
223: } else if (s >= (84*94)) { /* user (85ku - 94ku) */
224: w = s - (84*94) + (0xe000 + (94*10));
225: } else {
226: w = 0;
227: }
228: if (w == 0x00A6) {
229: w = 0xFFE4; /* FULLWIDTH BROKEN BAR */
230: }
231: if (w <= 0) {
232: w = ((c1 & 0x7f) << 8) | (c & 0x7f);
233: w &= MBFL_WCSPLANE_MASK;
234: w |= MBFL_WCSPLANE_JIS0212;
235: }
236: CK((*filter->output_function)(w, filter->data));
237: } else if ((c >= 0 && c < 0x21) || c == 0x7f) { /* CTLs */
238: CK((*filter->output_function)(c, filter->data));
239: } else {
240: w = (c1 << 8) | c | 0x8f0000;
241: w &= MBFL_WCSGROUP_MASK;
242: w |= MBFL_WCSGROUP_THROUGH;
243: CK((*filter->output_function)(w, filter->data));
244: }
245: break;
246:
247: default:
248: filter->status = 0;
249: break;
250: }
251:
252: return c;
253: }
254:
255: /*
256: * wchar => eucJP-win
257: */
258: int
259: mbfl_filt_conv_wchar_eucjpwin(int c, mbfl_convert_filter *filter)
260: {
261: int c1, c2, s1;
262:
263: s1 = 0;
264: if (c >= ucs_a1_jis_table_min && c < ucs_a1_jis_table_max) {
265: s1 = ucs_a1_jis_table[c - ucs_a1_jis_table_min];
266: } else if (c >= ucs_a2_jis_table_min && c < ucs_a2_jis_table_max) {
267: s1 = ucs_a2_jis_table[c - ucs_a2_jis_table_min];
268: } else if (c >= ucs_i_jis_table_min && c < ucs_i_jis_table_max) {
269: s1 = ucs_i_jis_table[c - ucs_i_jis_table_min];
270: } else if (c >= ucs_r_jis_table_min && c < ucs_r_jis_table_max) {
271: s1 = ucs_r_jis_table[c - ucs_r_jis_table_min];
272: } else if (c >= 0xe000 && c < (0xe000 + 10*94)) { /* user (X0208 85ku - 94ku) */
273: s1 = c - 0xe000;
274: c1 = s1/94 + 0x75;
275: c2 = s1%94 + 0x21;
276: s1 = (c1 << 8) | c2;
277: } else if (c >= (0xe000 + 10*94) && c < (0xe000 + 20*94)) { /* user (X0212 85ku - 94ku) */
278: s1 = c - (0xe000 + 10*94);
279: c1 = s1/94 + 0xf5;
280: c2 = s1%94 + 0xa1;
281: s1 = (c1 << 8) | c2;
282: }
283: if (s1 == 0xa2f1) {
284: s1 = 0x2d62; /* NUMERO SIGN */
285: }
286: if (s1 <= 0) {
287: c1 = c & ~MBFL_WCSPLANE_MASK;
288: if (c1 == MBFL_WCSPLANE_WINCP932) {
289: s1 = c & MBFL_WCSPLANE_MASK;
290: if (s1 >= ((85 + 0x20) << 8)) { /* 85ku - 120ku */
291: s1 = -1;
292: }
293: } else if (c1 == MBFL_WCSPLANE_JIS0208) {
294: s1 = c & MBFL_WCSPLANE_MASK;
295: if (s1 >= ((85 + 0x20) << 8)) { /* 85ku - 94ku */
296: s1 = -1;
297: }
298: } else if (c1 == MBFL_WCSPLANE_JIS0212) {
299: s1 = c & MBFL_WCSPLANE_MASK;
300: if (s1 >= ((83 + 0x20) << 8)) { /* 83ku - 94ku */
301: s1 = -1;
302: } else {
303: s1 |= 0x8080;
304: }
305: } else if (c == 0xa5) { /* YEN SIGN */
306: s1 = 0x216f; /* FULLWIDTH YEN SIGN */
307: } else if (c == 0x203e) { /* OVER LINE */
308: s1 = 0x2131; /* FULLWIDTH MACRON */
309: } else if (c == 0xff3c) { /* FULLWIDTH REVERSE SOLIDUS */
310: s1 = 0x2140;
311: } else if (c == 0xff5e) { /* FULLWIDTH TILDE */
312: s1 = 0x2141;
313: } else if (c == 0x2225) { /* PARALLEL TO */
314: s1 = 0x2142;
315: } else if (c == 0xff0d) { /* FULLWIDTH HYPHEN-MINUS */
316: s1 = 0x215d;
317: } else if (c == 0xffe0) { /* FULLWIDTH CENT SIGN */
318: s1 = 0x2171;
319: } else if (c == 0xffe1) { /* FULLWIDTH POUND SIGN */
320: s1 = 0x2172;
321: } else if (c == 0xffe2) { /* FULLWIDTH NOT SIGN */
322: s1 = 0x224c;
323: } else if (c == 0xff5e) { /* FULLWIDTH TILDE */
324: s1 = 0x2141;
325: } else {
326: s1 = -1;
327: c1 = 0;
328: c2 = cp932ext1_ucs_table_max - cp932ext1_ucs_table_min;
329: while (c1 < c2) { /* CP932 vendor ext1 (13ku) */
330: const int oh = cp932ext1_ucs_table_min / 94;
331:
332: if (c == cp932ext1_ucs_table[c1]) {
333: s1 = ((c1 / 94 + oh + 0x21) << 8) + (c1 % 94 + 0x21);
334: break;
335: }
336: c1++;
337: }
338: if (s1 < 0) {
339: c1 = 0;
340: c2 = cp932ext3_ucs_table_max - cp932ext3_ucs_table_min;
341: while (c1 < c2) { /* CP932 vendor ext3 (115ku - 119ku) */
342: if (c == cp932ext3_ucs_table[c1]) {
343: if (c1 < cp932ext3_eucjp_table_size) {
344: s1 = cp932ext3_eucjp_table[c1];
345: }
346: break;
347: }
348: c1++;
349: }
350: }
351: }
352: if (c == 0) {
353: s1 = 0;
354: } else if (s1 <= 0) {
355: s1 = -1;
356: }
357: }
358:
359: if (s1 >= 0) {
360: if (s1 < 0x80) { /* latin */
361: CK((*filter->output_function)(s1, filter->data));
362: } else if (s1 < 0x100) { /* kana */
363: CK((*filter->output_function)(0x8e, filter->data));
364: CK((*filter->output_function)(s1, filter->data));
365: } else if (s1 < 0x8080) { /* X 0208 */
366: CK((*filter->output_function)(((s1 >> 8) & 0xff) | 0x80, filter->data));
367: CK((*filter->output_function)((s1 & 0xff) | 0x80, filter->data));
368: } else { /* X 0212 */
369: CK((*filter->output_function)(0x8f, filter->data));
370: CK((*filter->output_function)(((s1 >> 8) & 0xff) | 0x80, filter->data));
371: CK((*filter->output_function)((s1 & 0xff) | 0x80, filter->data));
372: }
373: } else {
374: if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
375: CK(mbfl_filt_conv_illegal_output(c, filter));
376: }
377: }
378:
379: return c;
380: }
381:
382: static int mbfl_filt_ident_eucjp_win(int c, mbfl_identify_filter *filter)
383: {
384: switch (filter->status) {
385: case 0: /* latin */
386: if (c >= 0 && c < 0x80) { /* ok */
387: ;
388: } else if (c > 0xa0 && c < 0xff) { /* kanji first char */
389: filter->status = 1;
390: } else if (c == 0x8e) { /* kana first char */
391: filter->status = 2;
392: } else if (c == 0x8f) { /* X 0212 first char */
393: filter->status = 3;
394: } else { /* bad */
395: filter->flag = 1;
396: }
397: break;
398:
399: case 1: /* got first half */
400: if (c < 0xa1 || c > 0xfe) { /* bad */
401: filter->flag = 1;
402: }
403: filter->status = 0;
404: break;
405:
406: case 2: /* got 0x8e */
407: if (c < 0xa1 || c > 0xdf) { /* bad */
408: filter->flag = 1;
409: }
410: filter->status = 0;
411: break;
412:
413: case 3: /* got 0x8f */
414: if (c < 0xa1 || c > 0xfe) { /* bad */
415: filter->flag = 1;
416: }
417: filter->status++;
418: break;
419: case 4: /* got 0x8f */
420: if (c < 0xa1 || c > 0xfe) { /* bad */
421: filter->flag = 1;
422: }
423: filter->status = 0;
424: break;
425:
426: default:
427: filter->status = 0;
428: break;
429: }
430:
431: return c;
432: }
433:
434: