+++ /dev/null
-/*
- * Copyright (C) 1999-2001, 2008 Free Software Foundation, Inc.
- * This file is part of the GNU LIBICONV Library.
- *
- * The GNU LIBICONV Library is free software; you can redistribute it
- * and/or modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * The GNU LIBICONV Library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with the GNU LIBICONV Library; see the file COPYING.LIB.
- * If not, write to the Free Software Foundation, Inc., 51 Franklin Street,
- * Fifth Floor, Boston, MA 02110-1301, USA.
- */
-
-/*
- * ISO-2022-JP-2
- */
-
-/* Specification: RFC 1554 */
-/* ESC '(' 'I' for JISX0201 Katakana is an extension not found in RFC 1554 or
- CJK.INF, but implemented in glibc-2.1 and qt-2.0. */
-
-#define ESC 0x1b
-
-/*
- * The state is composed of one of the following values
- */
-#define STATE_ASCII 0
-#define STATE_JISX0201ROMAN 1
-#define STATE_JISX0201KATAKANA 2
-#define STATE_JISX0208 3
-#define STATE_JISX0212 4
-#define STATE_GB2312 5
-#define STATE_KSC5601 6
-/*
- * and one of the following values, << 8
- */
-#define STATE_G2_NONE 0
-#define STATE_G2_ISO8859_1 1
-#define STATE_G2_ISO8859_7 2
-
-#define SPLIT_STATE \
- unsigned int state1 = state & 0xff, state2 = state >> 8
-#define COMBINE_STATE \
- state = (state2 << 8) | state1
-
-static int
-iso2022_jp2_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
-{
- state_t state = conv->istate;
- SPLIT_STATE;
- int count = 0;
- unsigned char c;
- for (;;) {
- c = *s;
- if (c == ESC) {
- if (n < count+3)
- goto none;
- if (s[1] == '(') {
- if (s[2] == 'B') {
- state1 = STATE_ASCII;
- s += 3; count += 3;
- if (n < count+1)
- goto none;
- continue;
- }
- if (s[2] == 'J') {
- state1 = STATE_JISX0201ROMAN;
- s += 3; count += 3;
- if (n < count+1)
- goto none;
- continue;
- }
- if (s[2] == 'I') {
- state1 = STATE_JISX0201KATAKANA;
- s += 3; count += 3;
- if (n < count+1)
- goto none;
- continue;
- }
- goto ilseq;
- }
- if (s[1] == '$') {
- if (s[2] == '@' || s[2] == 'B') {
- /* We don't distinguish JIS X 0208-1978 and JIS X 0208-1983. */
- state1 = STATE_JISX0208;
- s += 3; count += 3;
- if (n < count+1)
- goto none;
- continue;
- }
- if (s[2] == 'A') {
- state1 = STATE_GB2312;
- s += 3; count += 3;
- if (n < count+1)
- goto none;
- continue;
- }
- if (s[2] == '(') {
- if (n < count+4)
- goto none;
- if (s[3] == 'D') {
- state1 = STATE_JISX0212;
- s += 4; count += 4;
- if (n < count+1)
- goto none;
- continue;
- }
- if (s[3] == 'C') {
- state1 = STATE_KSC5601;
- s += 4; count += 4;
- if (n < count+1)
- goto none;
- continue;
- }
- goto ilseq;
- }
- goto ilseq;
- }
- if (s[1] == '.') {
- if (n < count+3)
- goto none;
- if (s[2] == 'A') {
- state2 = STATE_G2_ISO8859_1;
- s += 3; count += 3;
- if (n < count+1)
- goto none;
- continue;
- }
- if (s[2] == 'F') {
- state2 = STATE_G2_ISO8859_7;
- s += 3; count += 3;
- if (n < count+1)
- goto none;
- continue;
- }
- goto ilseq;
- }
- if (s[1] == 'N') {
- switch (state2) {
- case STATE_G2_NONE:
- goto ilseq;
- case STATE_G2_ISO8859_1:
- if (s[2] < 0x80) {
- unsigned char buf = s[2]+0x80;
- int ret = iso8859_1_mbtowc(conv,pwc,&buf,1);
- if (ret == RET_ILSEQ)
- goto ilseq;
- if (ret != 1) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+3;
- } else
- goto ilseq;
- case STATE_G2_ISO8859_7:
- if (s[2] < 0x80) {
- unsigned char buf = s[2]+0x80;
- int ret = iso8859_7_mbtowc(conv,pwc,&buf,1);
- if (ret == RET_ILSEQ)
- goto ilseq;
- if (ret != 1) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+3;
- } else
- goto ilseq;
- default: abort();
- }
- }
- goto ilseq;
- }
- break;
- }
- switch (state1) {
- case STATE_ASCII:
- if (c < 0x80) {
- int ret = ascii_mbtowc(conv,pwc,s,1);
- if (ret == RET_ILSEQ)
- goto ilseq;
- if (ret != 1) abort();
- if (*pwc == 0x000a || *pwc == 0x000d)
- state2 = STATE_G2_NONE;
- COMBINE_STATE;
- conv->istate = state;
- return count+1;
- } else
- goto ilseq;
- case STATE_JISX0201ROMAN:
- if (c < 0x80) {
- int ret = jisx0201_mbtowc(conv,pwc,s,1);
- if (ret == RET_ILSEQ)
- goto ilseq;
- if (ret != 1) abort();
- if (*pwc == 0x000a || *pwc == 0x000d)
- state2 = STATE_G2_NONE;
- COMBINE_STATE;
- conv->istate = state;
- return count+1;
- } else
- goto ilseq;
- case STATE_JISX0201KATAKANA:
- if (c < 0x80) {
- unsigned char buf = c+0x80;
- int ret = jisx0201_mbtowc(conv,pwc,&buf,1);
- if (ret == RET_ILSEQ)
- goto ilseq;
- if (ret != 1) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+1;
- } else
- goto ilseq;
- case STATE_JISX0208:
- if (n < count+2)
- goto none;
- if (s[0] < 0x80 && s[1] < 0x80) {
- int ret = jisx0208_mbtowc(conv,pwc,s,2);
- if (ret == RET_ILSEQ)
- goto ilseq;
- if (ret != 2) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+2;
- } else
- goto ilseq;
- case STATE_JISX0212:
- if (n < count+2)
- goto none;
- if (s[0] < 0x80 && s[1] < 0x80) {
- int ret = jisx0212_mbtowc(conv,pwc,s,2);
- if (ret == RET_ILSEQ)
- goto ilseq;
- if (ret != 2) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+2;
- } else
- goto ilseq;
- case STATE_GB2312:
- if (n < count+2)
- goto none;
- if (s[0] < 0x80 && s[1] < 0x80) {
- int ret = gb2312_mbtowc(conv,pwc,s,2);
- if (ret == RET_ILSEQ)
- goto ilseq;
- if (ret != 2) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+2;
- } else
- goto ilseq;
- case STATE_KSC5601:
- if (n < count+2)
- goto none;
- if (s[0] < 0x80 && s[1] < 0x80) {
- int ret = ksc5601_mbtowc(conv,pwc,s,2);
- if (ret == RET_ILSEQ)
- goto ilseq;
- if (ret != 2) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+2;
- } else
- goto ilseq;
- default: abort();
- }
-
-none:
- COMBINE_STATE;
- conv->istate = state;
- return RET_TOOFEW(count);
-
-ilseq:
- COMBINE_STATE;
- conv->istate = state;
- return RET_SHIFT_ILSEQ(count);
-}
-
-#undef COMBINE_STATE
-#undef SPLIT_STATE
-
-/*
- * The state can also contain one of the following values, << 16.
- * Values >= STATE_TAG_LANGUAGE are temporary tag parsing states.
- */
-#define STATE_TAG_NONE 0
-#define STATE_TAG_LANGUAGE 4
-#define STATE_TAG_LANGUAGE_j 5
-#define STATE_TAG_LANGUAGE_ja 1
-#define STATE_TAG_LANGUAGE_k 6
-#define STATE_TAG_LANGUAGE_ko 2
-#define STATE_TAG_LANGUAGE_z 7
-#define STATE_TAG_LANGUAGE_zh 3
-
-#define SPLIT_STATE \
- unsigned int state1 = state & 0xff, state2 = (state >> 8) & 0xff, state3 = state >> 16
-#define COMBINE_STATE \
- state = (state3 << 16) | (state2 << 8) | state1
-
-static int
-iso2022_jp2_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
-{
- state_t state = conv->ostate;
- SPLIT_STATE;
- unsigned char buf[2];
- int ret;
- /* This defines the conversion preferences depending on the current
- langauge tag. */
- enum conversion { none = 0, european, japanese, chinese, korean, other };
- static const unsigned int conversion_lists[STATE_TAG_LANGUAGE] = {
- /* STATE_TAG_NONE */
- japanese + (european << 3) + (chinese << 6) + (korean << 9) + (other << 12),
- /* STATE_TAG_LANGUAGE_ja */
- japanese + (european << 3) + (chinese << 6) + (korean << 9) + (other << 12),
- /* STATE_TAG_LANGUAGE_ko */
- korean + (european << 3) + (japanese << 6) + (chinese << 9) + (other << 12),
- /* STATE_TAG_LANGUAGE_zh */
- chinese + (european << 3) + (japanese << 6) + (korean << 9) + (other << 12)
- };
- unsigned int conversion_list;
-
- /* Handle Unicode tag characters (range U+E0000..U+E007F). */
- if ((wc >> 7) == (0xe0000 >> 7)) {
- char c = wc & 0x7f;
- if (c >= 'A' && c <= 'Z')
- c += 'a'-'A';
- switch (c) {
- case 0x01:
- state3 = STATE_TAG_LANGUAGE;
- COMBINE_STATE;
- conv->ostate = state;
- return 0;
- case 'j':
- if (state3 == STATE_TAG_LANGUAGE) {
- state3 = STATE_TAG_LANGUAGE_j;
- COMBINE_STATE;
- conv->ostate = state;
- return 0;
- }
- break;
- case 'a':
- if (state3 == STATE_TAG_LANGUAGE_j) {
- state3 = STATE_TAG_LANGUAGE_ja;
- COMBINE_STATE;
- conv->ostate = state;
- return 0;
- }
- break;
- case 'k':
- if (state3 == STATE_TAG_LANGUAGE) {
- state3 = STATE_TAG_LANGUAGE_k;
- COMBINE_STATE;
- conv->ostate = state;
- return 0;
- }
- break;
- case 'o':
- if (state3 == STATE_TAG_LANGUAGE_k) {
- state3 = STATE_TAG_LANGUAGE_ko;
- COMBINE_STATE;
- conv->ostate = state;
- return 0;
- }
- break;
- case 'z':
- if (state3 == STATE_TAG_LANGUAGE) {
- state3 = STATE_TAG_LANGUAGE_z;
- COMBINE_STATE;
- conv->ostate = state;
- return 0;
- }
- break;
- case 'h':
- if (state3 == STATE_TAG_LANGUAGE_z) {
- state3 = STATE_TAG_LANGUAGE_zh;
- COMBINE_STATE;
- conv->ostate = state;
- return 0;
- }
- break;
- case 0x7f:
- state3 = STATE_TAG_NONE;
- COMBINE_STATE;
- conv->ostate = state;
- return 0;
- default:
- break;
- }
- /* Other tag characters reset the tag parsing state or are ignored. */
- if (state3 >= STATE_TAG_LANGUAGE)
- state3 = STATE_TAG_NONE;
- COMBINE_STATE;
- conv->ostate = state;
- return 0;
- }
- if (state3 >= STATE_TAG_LANGUAGE)
- state3 = STATE_TAG_NONE;
-
- /* Try ASCII. */
- ret = ascii_wctomb(conv,buf,wc,1);
- if (ret != RET_ILUNI) {
- if (ret != 1) abort();
- if (buf[0] < 0x80) {
- int count = (state1 == STATE_ASCII ? 1 : 4);
- if (n < count)
- return RET_TOOSMALL;
- if (state1 != STATE_ASCII) {
- r[0] = ESC;
- r[1] = '(';
- r[2] = 'B';
- r += 3;
- state1 = STATE_ASCII;
- }
- r[0] = buf[0];
- if (wc == 0x000a || wc == 0x000d)
- state2 = STATE_G2_NONE;
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
- }
-
- conversion_list = conversion_lists[state3];
-
- do {
- switch (conversion_list & ((1 << 3) - 1)) {
-
- case european:
-
- /* Try ISO-8859-1. */
- ret = iso8859_1_wctomb(conv,buf,wc,1);
- if (ret != RET_ILUNI) {
- if (ret != 1) abort();
- if (buf[0] >= 0x80) {
- int count = (state2 == STATE_G2_ISO8859_1 ? 3 : 6);
- if (n < count)
- return RET_TOOSMALL;
- if (state2 != STATE_G2_ISO8859_1) {
- r[0] = ESC;
- r[1] = '.';
- r[2] = 'A';
- r += 3;
- state2 = STATE_G2_ISO8859_1;
- }
- r[0] = ESC;
- r[1] = 'N';
- r[2] = buf[0]-0x80;
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
- }
-
- /* Try ISO-8859-7. */
- ret = iso8859_7_wctomb(conv,buf,wc,1);
- if (ret != RET_ILUNI) {
- if (ret != 1) abort();
- if (buf[0] >= 0x80) {
- int count = (state2 == STATE_G2_ISO8859_7 ? 3 : 6);
- if (n < count)
- return RET_TOOSMALL;
- if (state2 != STATE_G2_ISO8859_7) {
- r[0] = ESC;
- r[1] = '.';
- r[2] = 'F';
- r += 3;
- state2 = STATE_G2_ISO8859_7;
- }
- r[0] = ESC;
- r[1] = 'N';
- r[2] = buf[0]-0x80;
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
- }
-
- break;
-
- case japanese:
-
- /* Try JIS X 0201-1976 Roman. */
- ret = jisx0201_wctomb(conv,buf,wc,1);
- if (ret != RET_ILUNI) {
- if (ret != 1) abort();
- if (buf[0] < 0x80) {
- int count = (state1 == STATE_JISX0201ROMAN ? 1 : 4);
- if (n < count)
- return RET_TOOSMALL;
- if (state1 != STATE_JISX0201ROMAN) {
- r[0] = ESC;
- r[1] = '(';
- r[2] = 'J';
- r += 3;
- state1 = STATE_JISX0201ROMAN;
- }
- r[0] = buf[0];
- if (wc == 0x000a || wc == 0x000d)
- state2 = STATE_G2_NONE;
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
- }
-
- /* Try JIS X 0208-1990 in place of JIS X 0208-1978 and
- JIS X 0208-1983. */
- ret = jisx0208_wctomb(conv,buf,wc,2);
- if (ret != RET_ILUNI) {
- if (ret != 2) abort();
- if (buf[0] < 0x80 && buf[1] < 0x80) {
- int count = (state1 == STATE_JISX0208 ? 2 : 5);
- if (n < count)
- return RET_TOOSMALL;
- if (state1 != STATE_JISX0208) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = 'B';
- r += 3;
- state1 = STATE_JISX0208;
- }
- r[0] = buf[0];
- r[1] = buf[1];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
- }
-
- /* Try JIS X 0212-1990. */
- ret = jisx0212_wctomb(conv,buf,wc,2);
- if (ret != RET_ILUNI) {
- if (ret != 2) abort();
- if (buf[0] < 0x80 && buf[1] < 0x80) {
- int count = (state1 == STATE_JISX0212 ? 2 : 6);
- if (n < count)
- return RET_TOOSMALL;
- if (state1 != STATE_JISX0212) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = '(';
- r[3] = 'D';
- r += 4;
- state1 = STATE_JISX0212;
- }
- r[0] = buf[0];
- r[1] = buf[1];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
- }
-
- break;
-
- case chinese:
-
- /* Try GB 2312-1980. */
- ret = gb2312_wctomb(conv,buf,wc,2);
- if (ret != RET_ILUNI) {
- if (ret != 2) abort();
- if (buf[0] < 0x80 && buf[1] < 0x80) {
- int count = (state1 == STATE_GB2312 ? 2 : 5);
- if (n < count)
- return RET_TOOSMALL;
- if (state1 != STATE_GB2312) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = 'A';
- r += 3;
- state1 = STATE_GB2312;
- }
- r[0] = buf[0];
- r[1] = buf[1];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
- }
-
- break;
-
- case korean:
-
- /* Try KS C 5601-1992. */
- ret = ksc5601_wctomb(conv,buf,wc,2);
- if (ret != RET_ILUNI) {
- if (ret != 2) abort();
- if (buf[0] < 0x80 && buf[1] < 0x80) {
- int count = (state1 == STATE_KSC5601 ? 2 : 6);
- if (n < count)
- return RET_TOOSMALL;
- if (state1 != STATE_KSC5601) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = '(';
- r[3] = 'C';
- r += 4;
- state1 = STATE_KSC5601;
- }
- r[0] = buf[0];
- r[1] = buf[1];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
- }
-
- break;
-
- case other:
-
- /* Try JIS X 0201-1976 Kana. This is not officially part of
- ISO-2022-JP-2, according to RFC 1554. Therefore we try this
- only after all other attempts. */
- ret = jisx0201_wctomb(conv,buf,wc,1);
- if (ret != RET_ILUNI) {
- if (ret != 1) abort();
- if (buf[0] >= 0x80) {
- int count = (state1 == STATE_JISX0201KATAKANA ? 1 : 4);
- if (n < count)
- return RET_TOOSMALL;
- if (state1 != STATE_JISX0201KATAKANA) {
- r[0] = ESC;
- r[1] = '(';
- r[2] = 'I';
- r += 3;
- state1 = STATE_JISX0201KATAKANA;
- }
- r[0] = buf[0]-0x80;
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
- }
-
- break;
-
- default:
- abort();
- }
-
- conversion_list = conversion_list >> 3;
- } while (conversion_list != 0);
-
- return RET_ILUNI;
-}
-
-static int
-iso2022_jp2_reset (conv_t conv, unsigned char *r, int n)
-{
- state_t state = conv->ostate;
- SPLIT_STATE;
- (void)state2;
- (void)state3;
- if (state1 != STATE_ASCII) {
- if (n < 3)
- return RET_TOOSMALL;
- r[0] = ESC;
- r[1] = '(';
- r[2] = 'B';
- /* conv->ostate = 0; will be done by the caller */
- return 3;
- } else
- return 0;
-}
-
-#undef COMBINE_STATE
-#undef SPLIT_STATE
-#undef STATE_TAG_LANGUAGE_zh
-#undef STATE_TAG_LANGUAGE_z
-#undef STATE_TAG_LANGUAGE_ko
-#undef STATE_TAG_LANGUAGE_k
-#undef STATE_TAG_LANGUAGE_ja
-#undef STATE_TAG_LANGUAGE_j
-#undef STATE_TAG_LANGUAGE
-#undef STATE_TAG_NONE
-#undef STATE_G2_ISO8859_7
-#undef STATE_G2_ISO8859_1
-#undef STATE_G2_NONE
-#undef STATE_KSC5601
-#undef STATE_GB2312
-#undef STATE_JISX0212
-#undef STATE_JISX0208
-#undef STATE_JISX0201KATAKANA
-#undef STATE_JISX0201ROMAN
-#undef STATE_ASCII
projects / vuplus_xbmc / blobdiff