+++ /dev/null
-/*
- * Copyright (C) 1999-2001 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., 59 Temple Place -
- * Suite 330, Boston, MA 02111-1307, USA.
- */
-
-/*
- * ISO-2022-CN-EXT
- */
-
-/* Specification: RFC 1922 */
-
-#define ESC 0x1b
-#define SO 0x0e
-#define SI 0x0f
-
-/*
- * The state is composed of one of the following values
- */
-#define STATE_ASCII 0
-#define STATE_TWOBYTE 1
-/*
- * and one of the following values, << 8
- */
-#define STATE2_NONE 0
-#define STATE2_DESIGNATED_GB2312 1
-#define STATE2_DESIGNATED_CNS11643_1 2
-#define STATE2_DESIGNATED_ISO_IR_165 3
-/*
- * and one of the following values, << 16
- */
-#define STATE3_NONE 0
-#define STATE3_DESIGNATED_CNS11643_2 1
-/*
- * and one of the following values, << 24
- */
-#define STATE4_NONE 0
-#define STATE4_DESIGNATED_CNS11643_3 1
-#define STATE4_DESIGNATED_CNS11643_4 2
-#define STATE4_DESIGNATED_CNS11643_5 3
-#define STATE4_DESIGNATED_CNS11643_6 4
-#define STATE4_DESIGNATED_CNS11643_7 5
-
-#define SPLIT_STATE \
- unsigned int state1 = state & 0xff, state2 = (state >> 8) & 0xff, state3 = (state >> 16) & 0xff, state4 = state >> 24
-#define COMBINE_STATE \
- state = (state4 << 24) | (state3 << 16) | (state2 << 8) | state1
-
-static int
-iso2022_cn_ext_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+4)
- goto none;
- if (s[1] == '$') {
- if (s[2] == ')') {
- if (s[3] == 'A') {
- state2 = STATE2_DESIGNATED_GB2312;
- s += 4; count += 4;
- if (n < count+1)
- goto none;
- continue;
- }
- if (s[3] == 'G') {
- state2 = STATE2_DESIGNATED_CNS11643_1;
- s += 4; count += 4;
- if (n < count+1)
- goto none;
- continue;
- }
- if (s[3] == 'E') {
- state2 = STATE2_DESIGNATED_ISO_IR_165;
- s += 4; count += 4;
- if (n < count+1)
- goto none;
- continue;
- }
- }
- if (s[2] == '*') {
- if (s[3] == 'H') {
- state3 = STATE3_DESIGNATED_CNS11643_2;
- s += 4; count += 4;
- if (n < count+1)
- goto none;
- continue;
- }
- }
- if (s[2] == '+') {
- if (s[3] == 'I') {
- state4 = STATE4_DESIGNATED_CNS11643_3;
- s += 4; count += 4;
- if (n < count+1)
- goto none;
- continue;
- }
- if (s[3] == 'J') {
- state4 = STATE4_DESIGNATED_CNS11643_4;
- s += 4; count += 4;
- if (n < count+1)
- goto none;
- continue;
- }
- if (s[3] == 'K') {
- state4 = STATE4_DESIGNATED_CNS11643_5;
- s += 4; count += 4;
- if (n < count+1)
- goto none;
- continue;
- }
- if (s[3] == 'L') {
- state4 = STATE4_DESIGNATED_CNS11643_6;
- s += 4; count += 4;
- if (n < count+1)
- goto none;
- continue;
- }
- if (s[3] == 'M') {
- state4 = STATE4_DESIGNATED_CNS11643_7;
- s += 4; count += 4;
- if (n < count+1)
- goto none;
- continue;
- }
- }
- }
- if (s[1] == 'N') {
- switch (state3) {
- case STATE3_NONE:
- return RET_ILSEQ;
- case STATE3_DESIGNATED_CNS11643_2:
- if (s[2] < 0x80 && s[3] < 0x80) {
- int ret = cns11643_2_mbtowc(conv,pwc,s+2,2);
- if (ret == RET_ILSEQ)
- return RET_ILSEQ;
- if (ret != 2) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+4;
- } else
- return RET_ILSEQ;
- default: abort();
- }
- }
- if (s[1] == 'O') {
- switch (state4) {
- case STATE4_NONE:
- return RET_ILSEQ;
- case STATE4_DESIGNATED_CNS11643_3:
- if (s[2] < 0x80 && s[3] < 0x80) {
- int ret = cns11643_3_mbtowc(conv,pwc,s+2,2);
- if (ret == RET_ILSEQ)
- return RET_ILSEQ;
- if (ret != 2) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+4;
- } else
- return RET_ILSEQ;
- case STATE4_DESIGNATED_CNS11643_4:
- if (s[2] < 0x80 && s[3] < 0x80) {
- int ret = cns11643_4_mbtowc(conv,pwc,s+2,2);
- if (ret == RET_ILSEQ)
- return RET_ILSEQ;
- if (ret != 2) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+4;
- } else
- return RET_ILSEQ;
- case STATE4_DESIGNATED_CNS11643_5:
- if (s[2] < 0x80 && s[3] < 0x80) {
- int ret = cns11643_5_mbtowc(conv,pwc,s+2,2);
- if (ret == RET_ILSEQ)
- return RET_ILSEQ;
- if (ret != 2) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+4;
- } else
- return RET_ILSEQ;
- case STATE4_DESIGNATED_CNS11643_6:
- if (s[2] < 0x80 && s[3] < 0x80) {
- int ret = cns11643_6_mbtowc(conv,pwc,s+2,2);
- if (ret == RET_ILSEQ)
- return RET_ILSEQ;
- if (ret != 2) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+4;
- } else
- return RET_ILSEQ;
- case STATE4_DESIGNATED_CNS11643_7:
- if (s[2] < 0x80 && s[3] < 0x80) {
- int ret = cns11643_7_mbtowc(conv,pwc,s+2,2);
- if (ret == RET_ILSEQ)
- return RET_ILSEQ;
- if (ret != 2) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+4;
- } else
- return RET_ILSEQ;
- default: abort();
- }
- }
- return RET_ILSEQ;
- }
- if (c == SO) {
- if (state2 != STATE2_DESIGNATED_GB2312 && state2 != STATE2_DESIGNATED_CNS11643_1 && state2 != STATE2_DESIGNATED_ISO_IR_165)
- return RET_ILSEQ;
- state1 = STATE_TWOBYTE;
- s++; count++;
- if (n < count+1)
- goto none;
- continue;
- }
- if (c == SI) {
- state1 = STATE_ASCII;
- s++; count++;
- if (n < count+1)
- goto none;
- continue;
- }
- break;
- }
- switch (state1) {
- case STATE_ASCII:
- if (c < 0x80) {
- int ret = ascii_mbtowc(conv,pwc,s,1);
- if (ret == RET_ILSEQ)
- return RET_ILSEQ;
- if (ret != 1) abort();
- if (*pwc == 0x000a || *pwc == 0x000d) {
- state2 = STATE2_NONE; state3 = STATE3_NONE; state4 = STATE3_NONE;
- }
- COMBINE_STATE;
- conv->istate = state;
- return count+1;
- } else
- return RET_ILSEQ;
- case STATE_TWOBYTE:
- if (n < count+2)
- goto none;
- if (s[0] < 0x80 && s[1] < 0x80) {
- int ret;
- switch (state2) {
- case STATE2_NONE:
- return RET_ILSEQ;
- case STATE2_DESIGNATED_GB2312:
- ret = gb2312_mbtowc(conv,pwc,s,2); break;
- case STATE2_DESIGNATED_CNS11643_1:
- ret = cns11643_1_mbtowc(conv,pwc,s,2); break;
- case STATE2_DESIGNATED_ISO_IR_165:
- ret = isoir165_mbtowc(conv,pwc,s,2); break;
- default: abort();
- }
- if (ret == RET_ILSEQ)
- return RET_ILSEQ;
- if (ret != 2) abort();
- COMBINE_STATE;
- conv->istate = state;
- return count+2;
- } else
- return RET_ILSEQ;
- default: abort();
- }
-
-none:
- COMBINE_STATE;
- conv->istate = state;
- return RET_TOOFEW(count);
-}
-
-static int
-iso2022_cn_ext_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
-{
- state_t state = conv->ostate;
- SPLIT_STATE;
- unsigned char buf[3];
- int ret;
-
- /* There is no need to handle Unicode 3.1 tag characters and to look for
- "zh-CN" or "zh-TW" tags, because GB2312 and CNS11643 are disjoint. */
-
- /* 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 : 2);
- if (n < count)
- return RET_TOOSMALL;
- if (state1 != STATE_ASCII) {
- r[0] = SI;
- r += 1;
- state1 = STATE_ASCII;
- }
- r[0] = buf[0];
- if (wc == 0x000a || wc == 0x000d) {
- state2 = STATE2_NONE; state3 = STATE3_NONE; state4 = STATE3_NONE;
- }
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
- }
-
- /* 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 = (state2 == STATE2_DESIGNATED_GB2312 ? 0 : 4) + (state1 == STATE_TWOBYTE ? 0 : 1) + 2;
- if (n < count)
- return RET_TOOSMALL;
- if (state2 != STATE2_DESIGNATED_GB2312) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = ')';
- r[3] = 'A';
- r += 4;
- state2 = STATE2_DESIGNATED_GB2312;
- }
- if (state1 != STATE_TWOBYTE) {
- r[0] = SO;
- r += 1;
- state1 = STATE_TWOBYTE;
- }
- r[0] = buf[0];
- r[1] = buf[1];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
- }
-
- ret = cns11643_wctomb(conv,buf,wc,3);
- if (ret != RET_ILUNI) {
- if (ret != 3) abort();
-
- /* Try CNS 11643-1992 Plane 1. */
- if (buf[0] == 1 && buf[1] < 0x80 && buf[2] < 0x80) {
- int count = (state2 == STATE2_DESIGNATED_CNS11643_1 ? 0 : 4) + (state1 == STATE_TWOBYTE ? 0 : 1) + 2;
- if (n < count)
- return RET_TOOSMALL;
- if (state2 != STATE2_DESIGNATED_CNS11643_1) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = ')';
- r[3] = 'G';
- r += 4;
- state2 = STATE2_DESIGNATED_CNS11643_1;
- }
- if (state1 != STATE_TWOBYTE) {
- r[0] = SO;
- r += 1;
- state1 = STATE_TWOBYTE;
- }
- r[0] = buf[1];
- r[1] = buf[2];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
-
- /* Try CNS 11643-1992 Plane 2. */
- if (buf[0] == 2 && buf[1] < 0x80 && buf[2] < 0x80) {
- int count = (state3 == STATE3_DESIGNATED_CNS11643_2 ? 0 : 4) + 4;
- if (n < count)
- return RET_TOOSMALL;
- if (state3 != STATE3_DESIGNATED_CNS11643_2) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = '*';
- r[3] = 'H';
- r += 4;
- state3 = STATE3_DESIGNATED_CNS11643_2;
- }
- r[0] = ESC;
- r[1] = 'N';
- r[2] = buf[1];
- r[3] = buf[2];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
-
- /* Try CNS 11643-1992 Plane 3. */
- if (buf[0] == 3 && buf[1] < 0x80 && buf[2] < 0x80) {
- int count = (state4 == STATE4_DESIGNATED_CNS11643_3 ? 0 : 4) + 4;
- if (n < count)
- return RET_TOOSMALL;
- if (state4 != STATE4_DESIGNATED_CNS11643_3) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = '+';
- r[3] = 'I';
- r += 4;
- state4 = STATE4_DESIGNATED_CNS11643_3;
- }
- r[0] = ESC;
- r[1] = 'O';
- r[2] = buf[1];
- r[3] = buf[2];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
-
- /* Try CNS 11643-1992 Plane 4. */
- if (buf[0] == 4 && buf[1] < 0x80 && buf[2] < 0x80) {
- int count = (state4 == STATE4_DESIGNATED_CNS11643_4 ? 0 : 4) + 4;
- if (n < count)
- return RET_TOOSMALL;
- if (state4 != STATE4_DESIGNATED_CNS11643_4) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = '+';
- r[3] = 'J';
- r += 4;
- state4 = STATE4_DESIGNATED_CNS11643_4;
- }
- r[0] = ESC;
- r[1] = 'O';
- r[2] = buf[1];
- r[3] = buf[2];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
-
- /* Try CNS 11643-1992 Plane 5. */
- if (buf[0] == 5 && buf[1] < 0x80 && buf[2] < 0x80) {
- int count = (state4 == STATE4_DESIGNATED_CNS11643_5 ? 0 : 4) + 4;
- if (n < count)
- return RET_TOOSMALL;
- if (state4 != STATE4_DESIGNATED_CNS11643_5) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = '+';
- r[3] = 'K';
- r += 4;
- state4 = STATE4_DESIGNATED_CNS11643_5;
- }
- r[0] = ESC;
- r[1] = 'O';
- r[2] = buf[1];
- r[3] = buf[2];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
-
- /* Try CNS 11643-1992 Plane 6. */
- if (buf[0] == 6 && buf[1] < 0x80 && buf[2] < 0x80) {
- int count = (state4 == STATE4_DESIGNATED_CNS11643_6 ? 0 : 4) + 4;
- if (n < count)
- return RET_TOOSMALL;
- if (state4 != STATE4_DESIGNATED_CNS11643_6) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = '+';
- r[3] = 'L';
- r += 4;
- state4 = STATE4_DESIGNATED_CNS11643_6;
- }
- r[0] = ESC;
- r[1] = 'O';
- r[2] = buf[1];
- r[3] = buf[2];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
-
- /* Try CNS 11643-1992 Plane 7. */
- if (buf[0] == 7 && buf[1] < 0x80 && buf[2] < 0x80) {
- int count = (state4 == STATE4_DESIGNATED_CNS11643_7 ? 0 : 4) + 4;
- if (n < count)
- return RET_TOOSMALL;
- if (state4 != STATE4_DESIGNATED_CNS11643_7) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = '+';
- r[3] = 'M';
- r += 4;
- state4 = STATE4_DESIGNATED_CNS11643_7;
- }
- r[0] = ESC;
- r[1] = 'O';
- r[2] = buf[1];
- r[3] = buf[2];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
-
- }
-
- /* Try ISO-IR-165. */
- ret = isoir165_wctomb(conv,buf,wc,2);
- if (ret != RET_ILUNI) {
- if (ret != 2) abort();
- if (buf[0] < 0x80 && buf[1] < 0x80) {
- int count = (state2 == STATE2_DESIGNATED_ISO_IR_165 ? 0 : 4) + (state1 == STATE_TWOBYTE ? 0 : 1) + 2;
- if (n < count)
- return RET_TOOSMALL;
- if (state2 != STATE2_DESIGNATED_ISO_IR_165) {
- r[0] = ESC;
- r[1] = '$';
- r[2] = ')';
- r[3] = 'E';
- r += 4;
- state2 = STATE2_DESIGNATED_ISO_IR_165;
- }
- if (state1 != STATE_TWOBYTE) {
- r[0] = SO;
- r += 1;
- state1 = STATE_TWOBYTE;
- }
- r[0] = buf[0];
- r[1] = buf[1];
- COMBINE_STATE;
- conv->ostate = state;
- return count;
- }
- }
-
- return RET_ILUNI;
-}
-
-static int
-iso2022_cn_ext_reset (conv_t conv, unsigned char *r, int n)
-{
- state_t state = conv->ostate;
- SPLIT_STATE;
- (void)state2;
- (void)state3;
- (void)state4;
- if (state1 != STATE_ASCII) {
- if (n < 1)
- return RET_TOOSMALL;
- r[0] = SI;
- /* conv->ostate = 0; will be done by the caller */
- return 1;
- } else
- return 0;
-}
-
-#undef COMBINE_STATE
-#undef SPLIT_STATE
-#undef STATE4_DESIGNATED_CNS11643_7
-#undef STATE4_DESIGNATED_CNS11643_6
-#undef STATE4_DESIGNATED_CNS11643_5
-#undef STATE4_DESIGNATED_CNS11643_4
-#undef STATE4_DESIGNATED_CNS11643_3
-#undef STATE4_NONE
-#undef STATE3_DESIGNATED_CNS11643_2
-#undef STATE3_NONE
-#undef STATE2_DESIGNATED_ISO_IR_165
-#undef STATE2_DESIGNATED_CNS11643_1
-#undef STATE2_DESIGNATED_GB2312
-#undef STATE2_NONE
-#undef STATE_TWOBYTE
-#undef STATE_ASCII
projects / TestXSLT.git / blobdiff