From 6daac4eb3604736e20e8af5733f698eb144f0c2a Mon Sep 17 00:00:00 2001 From: pixel Date: Tue, 31 Jan 2006 17:02:38 +0000 Subject: Way too much changes - all over. --- MSVC/iconv/euc_jisx0213.h | 268 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 268 insertions(+) create mode 100644 MSVC/iconv/euc_jisx0213.h (limited to 'MSVC/iconv/euc_jisx0213.h') diff --git a/MSVC/iconv/euc_jisx0213.h b/MSVC/iconv/euc_jisx0213.h new file mode 100644 index 0000000..940e7f5 --- /dev/null +++ b/MSVC/iconv/euc_jisx0213.h @@ -0,0 +1,268 @@ +/* + * 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. + */ + +/* + * EUC-JISX0213 + */ + +/* The structure of EUC-JISX0213 is as follows: + + 0x00..0x7F: ASCII + + 0x8E{A1..FE}: JISX0201 Katakana, with prefix 0x8E, offset by +0x80. + + 0x8F{A1..FE}{A1..FE}: JISX0213 plane 2, with prefix 0x8F, offset by +0x8080. + + 0x{A1..FE}{A1..FE}: JISX0213 plane 1, offset by +0x8080. + + Note that some JISX0213 characters are not contained in Unicode 3.2 + and are therefore best represented as sequences of Unicode characters. +*/ + +#include "jisx0213.h" +#include "flushwc.h" + +static int +euc_jisx0213_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n) +{ + ucs4_t last_wc = conv->istate; + if (last_wc) { + /* Output the buffered character. */ + conv->istate = 0; + *pwc = last_wc; + return 0; /* Don't advance the input pointer. */ + } else { + unsigned char c = *s; + if (c < 0x80) { + /* Plain ASCII character. */ + *pwc = (ucs4_t) c; + return 1; + } else { + if ((c >= 0xa1 && c <= 0xfe) || c == 0x8e || c == 0x8f) { + /* Two or three byte character. */ + if (n >= 2) { + unsigned char c2 = s[1]; + if (c2 >= 0xa1 && c2 <= 0xfe) { + if (c == 0x8e) { + /* Half-width katakana. */ + if (c2 <= 0xdf) { + *pwc = c2 + 0xfec0; + return 2; + } + } else { + ucs4_t wc; + if (c == 0x8f) { + /* JISX 0213 plane 2. */ + if (n >= 3) { + unsigned char c3 = s[2]; + wc = jisx0213_to_ucs4(0x200-0x80+c2,c3^0x80); + } else + return RET_TOOFEW(0); + } else { + /* JISX 0213 plane 1. */ + wc = jisx0213_to_ucs4(0x100-0x80+c,c2^0x80); + } + 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; + } else + *pwc = wc; + return (c == 0x8f ? 3 : 2); + } + } + } + } else + return RET_TOOFEW(0); + } + return RET_ILSEQ; + } + } +} + +#define euc_jisx0213_flushwc normal_flushwc + +/* Composition tables for each of the relevant combining characters. */ +static const struct { unsigned short base; unsigned short composed; } euc_jisx0213_comp_table_data[] = { +#define euc_jisx0213_comp_table02e5_idx 0 +#define euc_jisx0213_comp_table02e5_len 1 + { 0xabe4, 0xabe5 }, /* 0x12B65 = 0x12B64 U+02E5 */ +#define euc_jisx0213_comp_table02e9_idx (euc_jisx0213_comp_table02e5_idx+euc_jisx0213_comp_table02e5_len) +#define euc_jisx0213_comp_table02e9_len 1 + { 0xabe0, 0xabe6 }, /* 0x12B66 = 0x12B60 U+02E9 */ +#define euc_jisx0213_comp_table0300_idx (euc_jisx0213_comp_table02e9_idx+euc_jisx0213_comp_table02e9_len) +#define euc_jisx0213_comp_table0300_len 5 + { 0xa9dc, 0xabc4 }, /* 0x12B44 = 0x1295C U+0300 */ + { 0xabb8, 0xabc8 }, /* 0x12B48 = 0x12B38 U+0300 */ + { 0xabb7, 0xabca }, /* 0x12B4A = 0x12B37 U+0300 */ + { 0xabb0, 0xabcc }, /* 0x12B4C = 0x12B30 U+0300 */ + { 0xabc3, 0xabce }, /* 0x12B4E = 0x12B43 U+0300 */ +#define euc_jisx0213_comp_table0301_idx (euc_jisx0213_comp_table0300_idx+euc_jisx0213_comp_table0300_len) +#define euc_jisx0213_comp_table0301_len 4 + { 0xabb8, 0xabc9 }, /* 0x12B49 = 0x12B38 U+0301 */ + { 0xabb7, 0xabcb }, /* 0x12B4B = 0x12B37 U+0301 */ + { 0xabb0, 0xabcd }, /* 0x12B4D = 0x12B30 U+0301 */ + { 0xabc3, 0xabcf }, /* 0x12B4F = 0x12B43 U+0301 */ +#define euc_jisx0213_comp_table309a_idx (euc_jisx0213_comp_table0301_idx+euc_jisx0213_comp_table0301_len) +#define euc_jisx0213_comp_table309a_len 14 + { 0xa4ab, 0xa4f7 }, /* 0x12477 = 0x1242B U+309A */ + { 0xa4ad, 0xa4f8 }, /* 0x12478 = 0x1242D U+309A */ + { 0xa4af, 0xa4f9 }, /* 0x12479 = 0x1242F U+309A */ + { 0xa4b1, 0xa4fa }, /* 0x1247A = 0x12431 U+309A */ + { 0xa4b3, 0xa4fb }, /* 0x1247B = 0x12433 U+309A */ + { 0xa5ab, 0xa5f7 }, /* 0x12577 = 0x1252B U+309A */ + { 0xa5ad, 0xa5f8 }, /* 0x12578 = 0x1252D U+309A */ + { 0xa5af, 0xa5f9 }, /* 0x12579 = 0x1252F U+309A */ + { 0xa5b1, 0xa5fa }, /* 0x1257A = 0x12531 U+309A */ + { 0xa5b3, 0xa5fb }, /* 0x1257B = 0x12533 U+309A */ + { 0xa5bb, 0xa5fc }, /* 0x1257C = 0x1253B U+309A */ + { 0xa5c4, 0xa5fd }, /* 0x1257D = 0x12544 U+309A */ + { 0xa5c8, 0xa5fe }, /* 0x1257E = 0x12548 U+309A */ + { 0xa6f5, 0xa6f8 }, /* 0x12678 = 0x12675 U+309A */ +}; + +static int +euc_jisx0213_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) +{ + int count = 0; + unsigned short lasttwo = conv->ostate; + + if (lasttwo) { + /* Attempt to combine the last character with this one. */ + unsigned int idx; + unsigned int len; + + if (wc == 0x02e5) + idx = euc_jisx0213_comp_table02e5_idx, + len = euc_jisx0213_comp_table02e5_len; + else if (wc == 0x02e9) + idx = euc_jisx0213_comp_table02e9_idx, + len = euc_jisx0213_comp_table02e9_len; + else if (wc == 0x0300) + idx = euc_jisx0213_comp_table0300_idx, + len = euc_jisx0213_comp_table0300_len; + else if (wc == 0x0301) + idx = euc_jisx0213_comp_table0301_idx, + len = euc_jisx0213_comp_table0301_len; + else if (wc == 0x309a) + idx = euc_jisx0213_comp_table309a_idx, + len = euc_jisx0213_comp_table309a_len; + else + goto not_combining; + + do + if (euc_jisx0213_comp_table_data[idx].base == lasttwo) + break; + while (++idx, --len > 0); + + if (len > 0) { + /* Output the combined character. */ + if (n >= 2) { + lasttwo = euc_jisx0213_comp_table_data[idx].composed; + r[0] = (lasttwo >> 8) & 0xff; + r[1] = lasttwo & 0xff; + conv->ostate = 0; + return 2; + } else + return RET_TOOSMALL; + } + + not_combining: + /* Output the buffered character. */ + if (n < 2) + return RET_TOOSMALL; + r[0] = (lasttwo >> 8) & 0xff; + r[1] = lasttwo & 0xff; + r += 2; + count = 2; + } + + if (wc < 0x80) { + /* Plain ASCII character. */ + if (n > count) { + r[0] = (unsigned char) wc; + conv->ostate = 0; + return count+1; + } else + return RET_TOOSMALL; + } else if (wc >= 0xff61 && wc <= 0xff9f) { + /* Half-width katakana. */ + if (n >= count+2) { + r[0] = 0x8e; + r[1] = wc - 0xfec0; + conv->ostate = 0; + return count+2; + } else + return RET_TOOSMALL; + } else { + unsigned short jch = ucs4_to_jisx0213(wc); + if (jch != 0) { + 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(); + conv->ostate = jch | 0x8080; + return count+0; + } + if (jch & 0x8000) { + /* JISX 0213 plane 2. */ + if (n >= count+3) { + r[0] = 0x8f; + r[1] = (jch >> 8) | 0x80; + r[2] = (jch & 0xff) | 0x80; + conv->ostate = 0; + return count+3; + } else + return RET_TOOSMALL; + } else { + /* JISX 0213 plane 1. */ + if (n >= count+2) { + r[0] = (jch >> 8) | 0x80; + r[1] = (jch & 0xff) | 0x80; + conv->ostate = 0; + return count+2; + } else + return RET_TOOSMALL; + } + } + return RET_ILUNI; + } +} + +static int +euc_jisx0213_reset (conv_t conv, unsigned char *r, int n) +{ + state_t lasttwo = conv->ostate; + + if (lasttwo) { + if (n < 2) + return RET_TOOSMALL; + r[0] = (lasttwo >> 8) & 0xff; + r[1] = lasttwo & 0xff; + /* conv->ostate = 0; will be done by the caller */ + return 2; + } else + return 0; +} -- cgit v1.2.3