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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_sjis_open.c
26: * by Rui Hirokawa <hirokawa@php.net> on 25 July 2011.
27: *
28: */
29:
30: #ifdef HAVE_CONFIG_H
31: #include "config.h"
32: #endif
33:
34: #include "mbfilter.h"
35: #include "mbfilter_sjis_mac.h"
36:
37: #include "unicode_table_cp932_ext.h"
38: #include "unicode_table_jis.h"
39:
40: #include "sjis_mac2uni.h"
41:
42: extern int mbfl_filt_ident_sjis(int c, mbfl_identify_filter *filter);
43: extern const unsigned char mblen_table_sjis[];
44:
45: static int mbfl_filt_conv_sjis_mac_flush(mbfl_convert_filter *filter);
46:
47: static const char *mbfl_encoding_sjis_mac_aliases[] = {"MacJapanese", "x-Mac-Japanese", NULL};
48:
49: const mbfl_encoding mbfl_encoding_sjis_mac = {
50: mbfl_no_encoding_sjis_mac,
51: "SJIS-mac",
52: "Shift_JIS",
53: (const char *(*)[])&mbfl_encoding_sjis_mac_aliases,
54: mblen_table_sjis,
55: MBFL_ENCTYPE_MBCS | MBFL_ENCTYPE_GL_UNSAFE
56: };
57:
58: const struct mbfl_identify_vtbl vtbl_identify_sjis_mac = {
59: mbfl_no_encoding_sjis_mac,
60: mbfl_filt_ident_common_ctor,
61: mbfl_filt_ident_common_dtor,
62: mbfl_filt_ident_sjis
63: };
64:
65: const struct mbfl_convert_vtbl vtbl_sjis_mac_wchar = {
66: mbfl_no_encoding_sjis_mac,
67: mbfl_no_encoding_wchar,
68: mbfl_filt_conv_common_ctor,
69: mbfl_filt_conv_common_dtor,
70: mbfl_filt_conv_sjis_mac_wchar,
71: mbfl_filt_conv_common_flush
72: };
73:
74: const struct mbfl_convert_vtbl vtbl_wchar_sjis_mac = {
75: mbfl_no_encoding_wchar,
76: mbfl_no_encoding_sjis_mac,
77: mbfl_filt_conv_common_ctor,
78: mbfl_filt_conv_common_dtor,
79: mbfl_filt_conv_wchar_sjis_mac,
80: mbfl_filt_conv_sjis_mac_flush
81: };
82:
83: #define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
84:
85: #define SJIS_ENCODE(c1,c2,s1,s2) \
86: do { \
87: s1 = c1; \
88: s1--; \
89: s1 >>= 1; \
90: if ((c1) < 0x5f) { \
91: s1 += 0x71; \
92: } else { \
93: s1 += 0xb1; \
94: } \
95: s2 = c2; \
96: if ((c1) & 1) { \
97: if ((c2) < 0x60) { \
98: s2--; \
99: } \
100: s2 += 0x20; \
101: } else { \
102: s2 += 0x7e; \
103: } \
104: } while (0)
105:
106: #define SJIS_DECODE(c1,c2,s1,s2) \
107: do { \
108: s1 = c1; \
109: if (s1 < 0xa0) { \
110: s1 -= 0x81; \
111: } else { \
112: s1 -= 0xc1; \
113: } \
114: s1 <<= 1; \
115: s1 += 0x21; \
116: s2 = c2; \
117: if (s2 < 0x9f) { \
118: if (s2 < 0x7f) { \
119: s2++; \
120: } \
121: s2 -= 0x20; \
122: } else { \
123: s1++; \
124: s2 -= 0x7e; \
125: } \
126: } while (0)
127:
128: /*
129: * SJIS-mac => wchar
130: */
131: int
132: mbfl_filt_conv_sjis_mac_wchar(int c, mbfl_convert_filter *filter)
133: {
134: int i, j, n;
135: int c1, s, s1, s2, w;
136:
137: switch (filter->status) {
138: case 0:
139: if (c >= 0 && c < 0x80 && c != 0x5c) { /* latin */
140: CK((*filter->output_function)(c, filter->data));
141: } else if (c > 0xa0 && c < 0xe0) { /* kana */
142: CK((*filter->output_function)(0xfec0 + c, filter->data));
143: } else if (c > 0x80 && c < 0xfd && c != 0xa0) { /* kanji first char */
144: filter->status = 1;
145: filter->cache = c;
146: } else if (c == 0x5c) {
147: CK((*filter->output_function)(0x00a5, filter->data));
148: } else if (c == 0x80) {
149: CK((*filter->output_function)(0x005c, filter->data));
150: } else if (c == 0xa0) {
151: CK((*filter->output_function)(0x00a0, filter->data));
152: } else if (c == 0xfd) {
153: CK((*filter->output_function)(0x00a9, filter->data));
154: } else if (c == 0xfe) {
155: CK((*filter->output_function)(0x2122, filter->data));
156: } else if (c == 0xff) {
157: CK((*filter->output_function)(0x2026, filter->data));
158: CK((*filter->output_function)(0xf87f, filter->data));
159: } else {
160: w = c & MBFL_WCSGROUP_MASK;
161: w |= MBFL_WCSGROUP_THROUGH;
162: CK((*filter->output_function)(w, filter->data));
163: }
164: break;
165:
166: case 1: /* kanji second char */
167: filter->status = 0;
168: c1 = filter->cache;
169: if (c >= 0x40 && c <= 0xfc && c != 0x7f) {
170: w = 0;
171: SJIS_DECODE(c1, c, s1, s2);
172: s = (s1 - 0x21)*94 + s2 - 0x21;
173: if (s <= 0x89) {
174: if (s == 0x1c) {
175: w = 0x2014; /* EM DASH */
176: } else if (s == 0x1f) {
177: w = 0xff3c; /* FULLWIDTH REVERSE SOLIDUS */
178: } else if (s == 0x20) {
179: w = 0x301c; /* FULLWIDTH TILDE */
180: } else if (s == 0x21) {
181: w = 0x2016; /* PARALLEL TO */
182: } else if (s == 0x3c) {
183: w = 0x2212; /* FULLWIDTH HYPHEN-MINUS */
184: } else if (s == 0x50) {
185: w = 0x00a2; /* FULLWIDTH CENT SIGN */
186: } else if (s == 0x51) {
187: w = 0x00a3; /* FULLWIDTH POUND SIGN */
188: } else if (s == 0x89) {
189: w = 0x00ac; /* FULLWIDTH NOT SIGN */
190: }
191: }
192:
193: /* apple gaiji area 0x8540 - 0x886d */
194: if (w == 0) {
195: for (i=0; i<7; i++) {
196: if (s >= code_tbl[i][0] && s <= code_tbl[i][1]) {
197: w = s - code_tbl[i][0] + code_tbl[i][2];
198: break;
199: }
200: }
201: }
202:
203: if (w == 0) {
204:
205: for (i=0; i<code_tbl_m_len; i++) {
206: if (s == code_tbl_m[i][0]) {
207: if (code_tbl_m[i][1] == 0xf860) {
208: n = 4;
209: } else if (code_tbl_m[i][1] == 0xf861) {
210: n = 5;
211: } else {
212: n = 6;
213: }
214: for (j=1; j<n-1; j++) {
215: CK((*filter->output_function)(code_tbl_m[i][j], filter->data));
216: }
217: w = code_tbl_m[i][n-1];
218: break;
219: }
220: }
221: }
222:
223: if (w == 0) {
224: for (i=0; i<8; i++) {
225: if (s >= code_ofst_tbl[i][0] && s <= code_ofst_tbl[i][1]) {
226: w = code_map[i][s - code_ofst_tbl[i][0]];
227: s2 = 0;
228: if (s >= 0x043e && s <= 0x0441) {
229: s2 = 0xf87a;
230: } else if (s == 0x03b1 || s == 0x03b7) {
231: s2 = 0xf87f;
232: } else if (s == 0x04b8 || s == 0x04b9 || s == 0x04c4) {
233: s2 = 0x20dd;
234: } else if (s == 0x1ed9 || s == 0x1eda || s == 0x1ee8 || s == 0x1ef3 ||
235: (s >= 0x1ef5 && s <= 0x1efb) || s == 0x1f05 || s == 0x1f06 ||
236: s == 0x1f18 || (s >= 0x1ff2 && s <= 0x20a5)) {
237: s2 = 0xf87e;
238: }
239: if (s2 > 0) {
240: CK((*filter->output_function)(w, filter->data));
241: w = s2;
242: }
243: break;
244: }
245: }
246: }
247:
248: if (w == 0 && s >= 0 && s < jisx0208_ucs_table_size) { /* X 0208 */
249: w = jisx0208_ucs_table[s];
250: }
251:
252: if (w <= 0) {
253: w = (s1 << 8) | s2;
254: w &= MBFL_WCSPLANE_MASK;
255: w |= MBFL_WCSPLANE_WINCP932;
256: }
257: CK((*filter->output_function)(w, filter->data));
258: } else if ((c >= 0 && c < 0x21) || c == 0x7f) { /* CTLs */
259: CK((*filter->output_function)(c, filter->data));
260: } else {
261: w = (c1 << 8) | c;
262: w &= MBFL_WCSGROUP_MASK;
263: w |= MBFL_WCSGROUP_THROUGH;
264: CK((*filter->output_function)(w, filter->data));
265: }
266: break;
267:
268: default:
269: filter->status = 0;
270: break;
271: }
272:
273: return c;
274: }
275:
276: /*
277: * wchar => SJIS-mac
278: */
279: int
280: mbfl_filt_conv_wchar_sjis_mac(int c, mbfl_convert_filter *filter)
281: {
282: int i;
283: int c1, c2, s1, s2, mode;
284:
285: s1 = 0;
286: s2 = 0;
287:
288: // a1: U+0000 -> U+046F
289: // a2: U+2000 -> U+30FF
290: // i: U+4E00 -> U+9FFF
291: // r: U+FF00 -> U+FFFF
292:
293: switch (filter->status) {
294:
295: case 1:
296: c1 = filter->cache;
297: filter->cache = 0;
298: filter->status = 0;
299:
300: s1 = 0;
301: s2 = 0;
302:
303: if (c == 0xf87a) {
304: for (i=0;i<4;i++) {
305: if (c1 == s_form_tbl[i+34+3+3]) {
306: s1 = s_form_sjis_tbl[i+34+3+3];
307: break;
308: }
309: }
310: if (s1 <= 0) {
311: s2 = c1;
312: }
313: } else if (c == 0x20dd) {
314: for (i=0;i<3;i++) {
315: if (c1 == s_form_tbl[i+34+3]) {
316: s1 = s_form_sjis_tbl[i+34+3];
317: break;
318: }
319: }
320: if (s1 <= 0) {
321: s2 = c1;
322: }
323: } else if (c == 0xf87f) {
324: for (i=0;i<3;i++) {
325: if (c1 == s_form_tbl[i+34]) {
326: s1 = s_form_sjis_tbl[i+34];
327: break;
328: }
329: }
330: if (s1 <= 0) {
331: s2 = c1; s1 = -1;
332: }
333: } else if (c == 0xf87e) {
334: for (i=0;i<34;i++) {
335: if (c1 == s_form_tbl[i]) {
336: s1 = s_form_sjis_tbl[i];
337: break;
338: }
339: }
340: if (s1 <= 0) {
341: s2 = c1; s1 = -1;
342: }
343: } else {
344: s2 = c1;
345: s1 = c;
346: }
347:
348: if (s2 > 0) {
349: for (i=0;i<s_form_tbl_len;i++) {
350: if (c1 == s_form_tbl[i]) {
351: s1 = s_form_sjis_fallback_tbl[i];
352: break;
353: }
354: }
355: }
356:
357: if (s1 >= 0) {
358: if (s1 < 0x100) {
359: CK((*filter->output_function)(s1, filter->data));
360: } else {
361: CK((*filter->output_function)((s1 >> 8) & 0xff, filter->data));
362: CK((*filter->output_function)(s1 & 0xff, filter->data));
363: }
364: } else {
365: if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
366: CK(mbfl_filt_conv_illegal_output(c, filter));
367: }
368: }
369:
370: if (s2 <= 0 || s1 == -1) {
371: break;
372: }
373:
374: case 0:
375:
376: if (c >= ucs_a1_jis_table_min && c < ucs_a1_jis_table_max) {
377: s1 = ucs_a1_jis_table[c - ucs_a1_jis_table_min];
378: if (c == 0x5c) {
379: s1 = 0x80;
380: } else if (c == 0xa9) {
381: s1 = 0xfd;
382: }
383: } else if (c >= ucs_a2_jis_table_min && c < ucs_a2_jis_table_max) {
384: s1 = ucs_a2_jis_table[c - ucs_a2_jis_table_min];
385: if (c == 0x2122) {
386: s1 = 0xfe;
387: } else if (c == 0x2014) {
388: s1 = 0x213d;
389: } else if (c == 0x2116) {
390: s1 = 0x2c1d;
391: }
392: } else if (c >= ucs_i_jis_table_min && c < ucs_i_jis_table_max) {
393: s1 = ucs_i_jis_table[c - ucs_i_jis_table_min];
394: } else if (c >= ucs_r_jis_table_min && c < ucs_r_jis_table_max) {
395: s1 = ucs_r_jis_table[c - ucs_r_jis_table_min];
396: }
397:
398: if (c >= 0x2000) {
399: for (i=0;i<s_form_tbl_len;i++) {
400: if (c == s_form_tbl[i]) {
401: filter->status = 1;
402: filter->cache = c;
403: return c;
404: }
405: }
406:
407: if (c == 0xf860 || c == 0xf861 || c == 0xf862) {
408: filter->status = 2;
409: filter->cache = c;
410: return c;
411: }
412: }
413:
414: if (s1 <= 0) {
415: c1 = c & ~MBFL_WCSPLANE_MASK;
416: if (c1 == MBFL_WCSPLANE_WINCP932) {
417: s1 = c & MBFL_WCSPLANE_MASK;
418: s2 = 1;
419: } else if (c1 == MBFL_WCSPLANE_JIS0208) {
420: s1 = c & MBFL_WCSPLANE_MASK;
421: } else if (c1 == MBFL_WCSPLANE_JIS0212) {
422: s1 = c & MBFL_WCSPLANE_MASK;
423: s1 |= 0x8080;
424: } else if (c == 0xa0) {
425: s1 = 0x00a0;
426: } else if (c == 0xa5) { /* YEN SIGN */
427: s1 = 0x216f; /* FULLWIDTH YEN SIGN */
428: } else if (c == 0xff3c) { /* FULLWIDTH REVERSE SOLIDUS */
429: s1 = 0x2140;
430: }
431: }
432:
433: if (s1 <= 0) {
434: for (i=0; i<wchar2sjis_mac_r_tbl_len; i++) {
435: if (c >= wchar2sjis_mac_r_tbl[i][0] && c <= wchar2sjis_mac_r_tbl[i][1]) {
436: s1 = c - wchar2sjis_mac_r_tbl[i][0] + wchar2sjis_mac_r_tbl[i][2];
437: break;
438: }
439: }
440:
441: if (s1 <= 0) {
442: for (i=0; i<wchar2sjis_mac_r_map_len; i++) {
443: if (c >= wchar2sjis_mac_r_map[i][0] && c <= wchar2sjis_mac_r_map[i][1]) {
444: s1 = wchar2sjis_mac_code_map[i][c-wchar2sjis_mac_r_map[i][0]];
445: break;
446: }
447: }
448: }
449:
450: if (s1 <= 0) {
451: for (i=0; i<wchar2sjis_mac_wchar_tbl_len ; i++) {
452: if ( c == wchar2sjis_mac_wchar_tbl[i][0]) {
453: s1 = wchar2sjis_mac_wchar_tbl[i][1] & 0xffff;
454: break;
455: }
456: }
457: }
458:
459: if (s1 > 0) {
460: c1 = s1/94+0x21;
461: c2 = s1-94*(c1-0x21)+0x21;
462: s1 = (c1 << 8) | c2;
463: s2 = 1;
464: }
465: }
466:
467: if ((s1 <= 0) || (s1 >= 0x8080 && s2 == 0)) { /* not found or X 0212 */
468: s1 = -1;
469: c1 = 0;
470:
471: if (c == 0) {
472: s1 = 0;
473: } else if (s1 <= 0) {
474: s1 = -1;
475: }
476: }
477:
478: if (s1 >= 0) {
479: if (s1 < 0x100) { /* latin or kana */
480: CK((*filter->output_function)(s1, filter->data));
481: } else { /* kanji */
482: c1 = (s1 >> 8) & 0xff;
483: c2 = s1 & 0xff;
484: SJIS_ENCODE(c1, c2, s1, s2);
485: CK((*filter->output_function)(s1, filter->data));
486: CK((*filter->output_function)(s2, filter->data));
487: }
488: } else {
489: if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
490: CK(mbfl_filt_conv_illegal_output(c, filter));
491: }
492: }
493: break;
494:
495:
496: case 2:
497: c1 = filter->cache;
498: filter->cache = 0;
499: filter->status = 0;
500: if (c1 == 0xf860) {
501: for (i=0; i<5; i++) {
502: if (c == code_tbl_m[i][2]) {
503: filter->cache = c | 0x10000;
504: filter->status = 3;
505: break;
506: }
507: }
508: } else if (c1 == 0xf861) {
509: for (i=0; i<3; i++) {
510: if (c == code_tbl_m[i+5][2]) {
511: filter->cache = c | 0x20000;
512: filter->status = 3;
513: break;
514: }
515: }
516: } else if (c1 == 0xf862) {
517: for (i=0; i<4; i++) {
518: if (c == code_tbl_m[i+5+3][2]) {
519: filter->cache = c | 0x40000;
520: filter->status = 3;
521: break;
522: }
523: }
524: }
525:
526: if (filter->status == 0 && filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
527: CK(mbfl_filt_conv_illegal_output(c1, filter));
528: CK(mbfl_filt_conv_illegal_output(c, filter));
529: }
530:
531: break;
532:
533: case 3:
534: s1 = 0;
535: c1 = filter->cache & 0xffff;
536: mode = (filter->cache & 0xf0000) >> 16;
537:
538: filter->cache = 0;
539: filter->status = 0;
540:
541: if (mode == 0x1) {
542: for (i=0; i<5; i++) {
543: if (c1 == code_tbl_m[i][2] && c == code_tbl_m[i][3]) {
544: s1 = code_tbl_m[i][0];
545: break;
546: }
547: }
548:
549: if (s1 > 0) {
550: c1 = s1/94+0x21;
551: c2 = s1-94*(c1-0x21)+0x21;
552: SJIS_ENCODE(c1, c2, s1, s2);
553: CK((*filter->output_function)(s1, filter->data));
554: CK((*filter->output_function)(s2, filter->data));
555: }
556:
557: if (s1 <= 0 && filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
558: CK(mbfl_filt_conv_illegal_output(0xf860, filter));
559: CK(mbfl_filt_conv_illegal_output(c1, filter));
560: CK(mbfl_filt_conv_illegal_output(c, filter));
561: }
562:
563: } else if (mode == 0x2) {
564: for (i=0; i<3; i++) {
565: if (c1 == code_tbl_m[i+5][2] && c == code_tbl_m[i+5][3]) {
566: filter->cache = c | 0x20000;
567: filter->status = 4;
568: break;
569: }
570: }
571: } else if (mode == 0x4) {
572: for (i=0; i<4; i++) {
573: if (c1 == code_tbl_m[i+8][2] && c == code_tbl_m[i+8][3]) {
574: filter->cache = c | 0x40000;
575: filter->status = 4;
576: break;
577: }
578: }
579: }
580: break;
581:
582: case 4:
583: s1 = 0;
584: c1 = filter->cache & 0xffff;
585: mode = (filter->cache & 0xf0000) >> 16;
586:
587: filter->cache = 0;
588: filter->status = 0;
589:
590: if (mode == 0x2) {
591: for (i=0; i<3; i++) {
592: if (c1 == code_tbl_m[i+5][3] && c == code_tbl_m[i+5][4]) {
593: s1 = code_tbl_m[i+5][0];
594: break;
595: }
596: }
597:
598: if (s1 > 0) {
599: c1 = s1/94+0x21;
600: c2 = s1-94*(c1-0x21)+0x21;
601: SJIS_ENCODE(c1, c2, s1, s2);
602: CK((*filter->output_function)(s1, filter->data));
603: CK((*filter->output_function)(s2, filter->data));
604: }
605:
606: if (s1 <= 0 && filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
607: CK(mbfl_filt_conv_illegal_output(0xf861, filter));
608: for (i=0; i<3; i++) {
609: if (c1 == code_tbl_m[i+5][3]) {
610: CK(mbfl_filt_conv_illegal_output(code_tbl_m[i+5][2], filter));
611: break;
612: }
613: }
614: CK(mbfl_filt_conv_illegal_output(c1, filter));
615: CK(mbfl_filt_conv_illegal_output(c, filter));
616: }
617: } else if (mode == 0x4) {
618: for (i=0; i<4; i++) {
619: if (c1 == code_tbl_m[i+8][3] && c == code_tbl_m[i+8][4]) {
620: filter->cache = c | 0x40000;
621: filter->status = 5;
622: break;
623: }
624: }
625: }
626: break;
627:
628: case 5:
629: s1 = 0;
630: c1 = filter->cache & 0xffff;
631: mode = (filter->cache & 0xf0000) >> 16;
632:
633: filter->cache = 0;
634: filter->status = 0;
635:
636: if (mode == 0x4) {
637: for (i=0; i<4; i++) {
638: if (c1 == code_tbl_m[i+8][4] && c == code_tbl_m[i+8][5]) {
639: s1 = code_tbl_m[i+8][0];
640: break;
641: }
642: }
643:
644: if (s1 > 0) {
645: c1 = s1/94+0x21;
646: c2 = s1-94*(c1-0x21)+0x21;
647: SJIS_ENCODE(c1, c2, s1, s2);
648: CK((*filter->output_function)(s1, filter->data));
649: CK((*filter->output_function)(s2, filter->data));
650: }
651:
652: if (s1 <= 0 && filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
653: CK(mbfl_filt_conv_illegal_output(0xf862, filter));
654: for (i=0; i<4; i++) {
655: if (c1 == code_tbl_m[i+8][4]) {
656: CK(mbfl_filt_conv_illegal_output( code_tbl_m[i+8][2], filter));
657: CK(mbfl_filt_conv_illegal_output( code_tbl_m[i+8][3], filter));
658: break;
659: }
660: }
661: CK(mbfl_filt_conv_illegal_output(c1, filter));
662: CK(mbfl_filt_conv_illegal_output(c, filter));
663: }
664: }
665: break;
666:
667: default:
668: filter->status = 0;
669: break;
670: }
671: return c;
672: }
673:
674: static int
675: mbfl_filt_conv_sjis_mac_flush(mbfl_convert_filter *filter)
676: {
677: int i, c1, s1 = 0;
678: if (filter->status == 1 && filter->cache > 0) {
679: c1 = filter->cache;
680: for (i=0;i<s_form_tbl_len;i++) {
681: if (c1 == s_form_tbl[i]) {
682: s1 = s_form_sjis_fallback_tbl[i];
683: break;
684: }
685: }
686: if (s1 > 0) {
687: CK((*filter->output_function)((s1 >> 8) & 0xff, filter->data));
688: CK((*filter->output_function)(s1 & 0xff, filter->data));
689: }
690: }
691: filter->cache = 0;
692: filter->status = 0;
693:
694: if (filter->flush_function != NULL) {
695: return (*filter->flush_function)(filter->data);
696: }
697:
698: return 0;
699: }
700: