summaryrefslogtreecommitdiff
path: root/win32/iconv/iso2022_jp3.h
diff options
context:
space:
mode:
authorPixel <pixel@nobis-crew.org>2011-10-11 16:45:31 -0700
committerPixel <pixel@nobis-crew.org>2011-10-11 16:45:31 -0700
commitead67afc96cdff3e74bb616e8e3a8b0a7695a28a (patch)
tree4d074d11a7983bdbde3f6da7d311cddd9696ef0d /win32/iconv/iso2022_jp3.h
parentd2252afcd74af0248c6141c8086d03e12a0a316f (diff)
Making the project compile with mingw32, on the same Makefile. No more separate Makefiles insanity.
Diffstat (limited to 'win32/iconv/iso2022_jp3.h')
-rw-r--r--win32/iconv/iso2022_jp3.h534
1 files changed, 534 insertions, 0 deletions
diff --git a/win32/iconv/iso2022_jp3.h b/win32/iconv/iso2022_jp3.h
new file mode 100644
index 0000000..4880a46
--- /dev/null
+++ b/win32/iconv/iso2022_jp3.h
@@ -0,0 +1,534 @@
+/*
+ * Copyright (C) 1999-2002 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-JP-3
+ */
+
+#include "jisx0213.h"
+
+#define ESC 0x1b
+
+/*
+ * The state is composed of one of the following values
+ */
+#define STATE_ASCII 0 /* Esc ( B */
+#define STATE_JISX0201ROMAN 1 /* Esc ( J */
+#define STATE_JISX0201KATAKANA 2 /* Esc ( I */
+#define STATE_JISX0208 3 /* Esc $ @ or Esc $ B */
+#define STATE_JISX02131 4 /* Esc $ ( O */
+#define STATE_JISX02132 5 /* Esc $ ( P */
+
+/*
+ * In the ISO-2022-JP-3 to UCS-4 direction, the state also holds the last
+ * character to be output, shifted by 3 bits.
+ */
+
+static int
+iso2022_jp3_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
+{
+ ucs4_t last_wc = conv->istate >> 3;
+ if (last_wc) {
+ /* Output the buffered character. */
+ conv->istate &= 7;
+ *pwc = last_wc;
+ return 0; /* Don't advance the input pointer. */
+ } else {
+ state_t state = conv->istate;
+ 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') {
+ state = STATE_ASCII;
+ s += 3; count += 3;
+ if (n < count+1)
+ goto none;
+ continue;
+ }
+ if (s[2] == 'J') {
+ state = STATE_JISX0201ROMAN;
+ s += 3; count += 3;
+ if (n < count+1)
+ goto none;
+ continue;
+ }
+ if (s[2] == 'I') {
+ state = STATE_JISX0201KATAKANA;
+ s += 3; count += 3;
+ if (n < count+1)
+ goto none;
+ continue;
+ }
+ return RET_ILSEQ;
+ }
+ if (s[1] == '$') {
+ if (s[2] == '@' || s[2] == 'B') {
+ /* We don't distinguish JIS X 0208-1978 and JIS X 0208-1983. */
+ state = STATE_JISX0208;
+ s += 3; count += 3;
+ if (n < count+1)
+ goto none;
+ continue;
+ }
+ if (s[2] == '(') {
+ if (n < count+4)
+ goto none;
+ if (s[3] == 'O') {
+ state = STATE_JISX02131;
+ s += 4; count += 4;
+ if (n < count+1)
+ goto none;
+ continue;
+ }
+ if (s[3] == 'P') {
+ state = STATE_JISX02132;
+ s += 4; count += 4;
+ if (n < count+1)
+ goto none;
+ continue;
+ }
+ }
+ return RET_ILSEQ;
+ }
+ return RET_ILSEQ;
+ }
+ break;
+ }
+ switch (state) {
+ 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();
+ conv->istate = state;
+ return count+1;
+ } else
+ return RET_ILSEQ;
+ case STATE_JISX0201ROMAN:
+ if (c < 0x80) {
+ int ret = jisx0201_mbtowc(conv,pwc,s,1);
+ if (ret == RET_ILSEQ)
+ return RET_ILSEQ;
+ if (ret != 1) abort();
+ conv->istate = state;
+ return count+1;
+ } else
+ return RET_ILSEQ;
+ case STATE_JISX0201KATAKANA:
+ if (c < 0x80) {
+ unsigned char buf = c+0x80;
+ int ret = jisx0201_mbtowc(conv,pwc,&buf,1);
+ if (ret == RET_ILSEQ)
+ return RET_ILSEQ;
+ if (ret != 1) abort();
+ conv->istate = state;
+ return count+1;
+ } else
+ return RET_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)
+ return RET_ILSEQ;
+ if (ret != 2) abort();
+ conv->istate = state;
+ return count+2;
+ } else
+ return RET_ILSEQ;
+ case STATE_JISX02131:
+ case STATE_JISX02132:
+ if (n < count+2)
+ goto none;
+ if (s[0] < 0x80 && s[1] < 0x80) {
+ ucs4_t wc = jisx0213_to_ucs4(((state-STATE_JISX02131+1)<<8)+s[0],s[1]);
+ if (wc) {
+ if (wc < 0x80) {
+ /* It's a combining character. */
+ ucs4_t wc1 = jisx0213_to_ucs_combining[wc - 1][0];
+ ucs4_t wc2 = jisx0213_to_ucs_combining[wc - 1][1];
+ /* We cannot output two Unicode characters at once. So,
+ output the first character and buffer the second one. */
+ *pwc = wc1;
+ conv->istate = (wc2 << 3) | state;
+ } else {
+ *pwc = wc;
+ conv->istate = state;
+ }
+ return count+2;
+ }
+ }
+ return RET_ILSEQ;
+ default: abort();
+ }
+ none:
+ conv->istate = state;
+ return RET_TOOFEW(count);
+ }
+}
+
+static int
+iso2022_jp3_flushwc (conv_t conv, ucs4_t *pwc)
+{
+ ucs4_t last_wc = conv->istate >> 3;
+ if (last_wc) {
+ /* Output the buffered character. */
+ conv->istate &= 7;
+ *pwc = last_wc;
+ return 1;
+ } else
+ return 0;
+}
+
+/*
+ * In the UCS-4 to ISO-2022-JP-3 direction, the state also holds the last two
+ * bytes to be output, shifted by 3 bits, and the STATE_xxxxx value that was
+ * effective before this buffered character, shifted by 19 bits.
+ */
+
+/* Composition tables for each of the relevant combining characters. */
+static const struct { unsigned short base; unsigned short composed; } iso2022_jp3_comp_table_data[] = {
+#define iso2022_jp3_comp_table02e5_idx 0
+#define iso2022_jp3_comp_table02e5_len 1
+ { 0x2b64, 0x2b65 }, /* 0x12B65 = 0x12B64 U+02E5 */
+#define iso2022_jp3_comp_table02e9_idx (iso2022_jp3_comp_table02e5_idx+iso2022_jp3_comp_table02e5_len)
+#define iso2022_jp3_comp_table02e9_len 1
+ { 0x2b60, 0x2b66 }, /* 0x12B66 = 0x12B60 U+02E9 */
+#define iso2022_jp3_comp_table0300_idx (iso2022_jp3_comp_table02e9_idx+iso2022_jp3_comp_table02e9_len)
+#define iso2022_jp3_comp_table0300_len 5
+ { 0x295c, 0x2b44 }, /* 0x12B44 = 0x1295C U+0300 */
+ { 0x2b38, 0x2b48 }, /* 0x12B48 = 0x12B38 U+0300 */
+ { 0x2b37, 0x2b4a }, /* 0x12B4A = 0x12B37 U+0300 */
+ { 0x2b30, 0x2b4c }, /* 0x12B4C = 0x12B30 U+0300 */
+ { 0x2b43, 0x2b4e }, /* 0x12B4E = 0x12B43 U+0300 */
+#define iso2022_jp3_comp_table0301_idx (iso2022_jp3_comp_table0300_idx+iso2022_jp3_comp_table0300_len)
+#define iso2022_jp3_comp_table0301_len 4
+ { 0x2b38, 0x2b49 }, /* 0x12B49 = 0x12B38 U+0301 */
+ { 0x2b37, 0x2b4b }, /* 0x12B4B = 0x12B37 U+0301 */
+ { 0x2b30, 0x2b4d }, /* 0x12B4D = 0x12B30 U+0301 */
+ { 0x2b43, 0x2b4f }, /* 0x12B4F = 0x12B43 U+0301 */
+#define iso2022_jp3_comp_table309a_idx (iso2022_jp3_comp_table0301_idx+iso2022_jp3_comp_table0301_len)
+#define iso2022_jp3_comp_table309a_len 14
+ { 0x242b, 0x2477 }, /* 0x12477 = 0x1242B U+309A */
+ { 0x242d, 0x2478 }, /* 0x12478 = 0x1242D U+309A */
+ { 0x242f, 0x2479 }, /* 0x12479 = 0x1242F U+309A */
+ { 0x2431, 0x247a }, /* 0x1247A = 0x12431 U+309A */
+ { 0x2433, 0x247b }, /* 0x1247B = 0x12433 U+309A */
+ { 0x252b, 0x2577 }, /* 0x12577 = 0x1252B U+309A */
+ { 0x252d, 0x2578 }, /* 0x12578 = 0x1252D U+309A */
+ { 0x252f, 0x2579 }, /* 0x12579 = 0x1252F U+309A */
+ { 0x2531, 0x257a }, /* 0x1257A = 0x12531 U+309A */
+ { 0x2533, 0x257b }, /* 0x1257B = 0x12533 U+309A */
+ { 0x253b, 0x257c }, /* 0x1257C = 0x1253B U+309A */
+ { 0x2544, 0x257d }, /* 0x1257D = 0x12544 U+309A */
+ { 0x2548, 0x257e }, /* 0x1257E = 0x12548 U+309A */
+ { 0x2675, 0x2678 }, /* 0x12678 = 0x12675 U+309A */
+};
+
+#define SPLIT_STATE \
+ unsigned short lasttwo = state >> 3; state_t prevstate = state >> 19; state &= 7
+#define COMBINE_STATE \
+ state |= (prevstate << 19) | (lasttwo << 3)
+#define COMBINE_STATE_NO_LASTTWO \
+ /* assume lasttwo == 0, then prevstate is ignored */
+
+static int
+iso2022_jp3_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
+{
+ int count = 0;
+ unsigned char buf[2];
+ unsigned short jch;
+ int ret;
+ state_t state = conv->ostate;
+ SPLIT_STATE;
+
+ if (lasttwo) {
+ /* Attempt to combine the last character with this one. */
+ unsigned int idx;
+ unsigned int len;
+
+ if (wc == 0x02e5)
+ idx = iso2022_jp3_comp_table02e5_idx,
+ len = iso2022_jp3_comp_table02e5_len;
+ else if (wc == 0x02e9)
+ idx = iso2022_jp3_comp_table02e9_idx,
+ len = iso2022_jp3_comp_table02e9_len;
+ else if (wc == 0x0300)
+ idx = iso2022_jp3_comp_table0300_idx,
+ len = iso2022_jp3_comp_table0300_len;
+ else if (wc == 0x0301)
+ idx = iso2022_jp3_comp_table0301_idx,
+ len = iso2022_jp3_comp_table0301_len;
+ else if (wc == 0x309a)
+ idx = iso2022_jp3_comp_table309a_idx,
+ len = iso2022_jp3_comp_table309a_len;
+ else
+ goto not_combining;
+
+ do
+ if (iso2022_jp3_comp_table_data[idx].base == lasttwo)
+ break;
+ while (++idx, --len > 0);
+
+ if (len > 0) {
+ /* Output the combined character. */
+ /* We know the combined character is in JISX0213 plane 1, but
+ the buffered character may have been in JISX0208 or in
+ JISX0213 plane 1. */
+ count = (state != STATE_JISX02131 ? 4 : 0) + 2;
+ if (n < count)
+ return RET_TOOSMALL;
+ if (state != STATE_JISX02131) {
+ r[0] = ESC;
+ r[1] = '$';
+ r[2] = '(';
+ r[3] = 'O';
+ r += 4;
+ state = STATE_JISX02131;
+ }
+ lasttwo = iso2022_jp3_comp_table_data[idx].composed;
+ r[0] = (lasttwo >> 8) & 0xff;
+ r[1] = lasttwo & 0xff;
+ COMBINE_STATE_NO_LASTTWO;
+ conv->ostate = state;
+ return count;
+ }
+
+ not_combining:
+ /* Output the buffered character. */
+ /* We know it is in JISX0208 or in JISX0213 plane 1. */
+ count = (prevstate != state ? 3 : 0) + 2;
+ if (n < count)
+ return RET_TOOSMALL;
+ if (prevstate != state) {
+ if (state != STATE_JISX0208) abort();
+ r[0] = ESC;
+ r[1] = '$';
+ r[2] = 'B';
+ r += 3;
+ }
+ r[0] = (lasttwo >> 8) & 0xff;
+ r[1] = lasttwo & 0xff;
+ r += 2;
+ }
+
+ /* Try ASCII. */
+ ret = ascii_wctomb(conv,buf,wc,1);
+ if (ret != RET_ILUNI) {
+ if (ret != 1) abort();
+ if (buf[0] < 0x80) {
+ count += (state == STATE_ASCII ? 1 : 4);
+ if (n < count)
+ return RET_TOOSMALL;
+ if (state != STATE_ASCII) {
+ r[0] = ESC;
+ r[1] = '(';
+ r[2] = 'B';
+ r += 3;
+ state = STATE_ASCII;
+ }
+ r[0] = buf[0];
+ COMBINE_STATE_NO_LASTTWO;
+ conv->ostate = state;
+ return count;
+ }
+ }
+
+ /* Try JIS X 0201-1976 Roman. */
+ ret = jisx0201_wctomb(conv,buf,wc,1);
+ if (ret != RET_ILUNI) {
+ if (ret != 1) abort();
+ if (buf[0] < 0x80) {
+ count += (state == STATE_JISX0201ROMAN ? 1 : 4);
+ if (n < count)
+ return RET_TOOSMALL;
+ if (state != STATE_JISX0201ROMAN) {
+ r[0] = ESC;
+ r[1] = '(';
+ r[2] = 'J';
+ r += 3;
+ state = STATE_JISX0201ROMAN;
+ }
+ r[0] = buf[0];
+ COMBINE_STATE_NO_LASTTWO;
+ conv->ostate = state;
+ return count;
+ }
+ }
+
+ jch = ucs4_to_jisx0213(wc);
+
+ /* Try JIS X 0208-1990 in place of JIS X 0208-1978 and JIS X 0208-1983. */
+ ret = jisx0208_wctomb(conv,buf,wc,2);
+ if (ret != RET_ILUNI) {
+ if (ret != 2) abort();
+ if (buf[0] < 0x80 && buf[1] < 0x80) {
+ if (jch & 0x0080) {
+ /* A possible match in comp_table_data. Buffer it. */
+ prevstate = state;
+ lasttwo = jch & 0x7f7f;
+ state = STATE_JISX0208;
+ COMBINE_STATE;
+ conv->ostate = state;
+ return count;
+ } else {
+ count += (state == STATE_JISX0208 ? 2 : 5);
+ if (n < count)
+ return RET_TOOSMALL;
+ if (state != STATE_JISX0208) {
+ r[0] = ESC;
+ r[1] = '$';
+ r[2] = 'B';
+ r += 3;
+ state = STATE_JISX0208;
+ }
+ r[0] = buf[0];
+ r[1] = buf[1];
+ COMBINE_STATE_NO_LASTTWO;
+ conv->ostate = state;
+ return count;
+ }
+ }
+ }
+
+ /* Try JISX 0213 plane 1 and JISX 0213 plane 2. */
+ if (jch != 0) {
+ if (jch & 0x8000) {
+ /* JISX 0213 plane 2. */
+ if (state != STATE_JISX02132) {
+ count += 4;
+ if (n < count)
+ return RET_TOOSMALL;
+ r[0] = ESC;
+ r[1] = '$';
+ r[2] = '(';
+ r[3] = 'P';
+ r += 4;
+ state = STATE_JISX02132;
+ }
+ } else {
+ /* JISX 0213 plane 1. */
+ if (state != STATE_JISX02131) {
+ count += 4;
+ if (n < count)
+ return RET_TOOSMALL;
+ r[0] = ESC;
+ r[1] = '$';
+ r[2] = '(';
+ r[3] = 'O';
+ r += 4;
+ state = STATE_JISX02131;
+ }
+ }
+ if (jch & 0x0080) {
+ /* A possible match in comp_table_data. We have to buffer it. */
+ /* We know it's a JISX 0213 plane 1 character. */
+ if (jch & 0x8000) abort();
+ prevstate = state;
+ lasttwo = jch & 0x7f7f;
+ COMBINE_STATE;
+ conv->ostate = state;
+ return count;
+ }
+ count += 2;
+ if (n < count)
+ return RET_TOOSMALL;
+ r[0] = (jch >> 8) & 0x7f;
+ r[1] = jch & 0x7f;
+ COMBINE_STATE_NO_LASTTWO;
+ conv->ostate = state;
+ return count;
+ }
+
+ /* Try JIS X 0201-1976 Katakana. This is not officially part of
+ ISO-2022-JP-3. Therefore we try it after all other attempts. */
+ ret = jisx0201_wctomb(conv,buf,wc,1);
+ if (ret != RET_ILUNI) {
+ if (ret != 1) abort();
+ if (buf[0] >= 0x80) {
+ count += (state == STATE_JISX0201KATAKANA ? 1 : 4);
+ if (n < count)
+ return RET_TOOSMALL;
+ if (state != STATE_JISX0201KATAKANA) {
+ r[0] = ESC;
+ r[1] = '(';
+ r[2] = 'I';
+ r += 3;
+ state = STATE_JISX0201KATAKANA;
+ }
+ r[0] = buf[0]-0x80;
+ COMBINE_STATE_NO_LASTTWO;
+ conv->ostate = state;
+ return count;
+ }
+ }
+
+ return RET_ILUNI;
+}
+
+static int
+iso2022_jp3_reset (conv_t conv, unsigned char *r, int n)
+{
+ state_t state = conv->ostate;
+ SPLIT_STATE;
+ {
+ int count =
+ (lasttwo ? (prevstate != state ? 3 : 0) + 2 : 0)
+ + (state != STATE_ASCII ? 3 : 0);
+ if (n < count)
+ return RET_TOOSMALL;
+ if (lasttwo) {
+ if (prevstate != state) {
+ if (state != STATE_JISX0208) abort();
+ r[0] = ESC;
+ r[1] = '$';
+ r[2] = 'B';
+ r += 3;
+ }
+ r[0] = (lasttwo >> 8) & 0xff;
+ r[1] = lasttwo & 0xff;
+ r += 2;
+ }
+ if (state != STATE_ASCII) {
+ r[0] = ESC;
+ r[1] = '(';
+ r[2] = 'B';
+ }
+ /* conv->ostate = 0; will be done by the caller */
+ return count;
+ }
+}
+
+#undef COMBINE_STATE_NO_LASTTWO
+#undef COMBINE_STATE
+#undef SPLIT_STATE
+#undef STATE_JISX02132
+#undef STATE_JISX02131
+#undef STATE_JISX0208
+#undef STATE_JISX0201KATAKANA
+#undef STATE_JISX0201ROMAN
+#undef STATE_ASCII