From ead67afc96cdff3e74bb616e8e3a8b0a7695a28a Mon Sep 17 00:00:00 2001 From: Pixel Date: Tue, 11 Oct 2011 16:45:31 -0700 Subject: Making the project compile with mingw32, on the same Makefile. No more separate Makefiles insanity. --- win32/iconv/iso2022_cn.h | 319 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 319 insertions(+) create mode 100644 win32/iconv/iso2022_cn.h (limited to 'win32/iconv/iso2022_cn.h') diff --git a/win32/iconv/iso2022_cn.h b/win32/iconv/iso2022_cn.h new file mode 100644 index 0000000..4279a85 --- /dev/null +++ b/win32/iconv/iso2022_cn.h @@ -0,0 +1,319 @@ +/* + * 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 + */ + +/* 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 +/* + * and one of the following values, << 16 + */ +#define STATE3_NONE 0 +#define STATE3_DESIGNATED_CNS11643_2 1 + +#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_cn_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[2] == '*') { + if (s[3] == 'H') { + state3 = STATE3_DESIGNATED_CNS11643_2; + 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(); + } + } + return RET_ILSEQ; + } + if (c == SO) { + if (state2 != STATE2_DESIGNATED_GB2312 && state2 != STATE2_DESIGNATED_CNS11643_1) + 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; + } + 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; + 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_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; + } + 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; + } + } + + return RET_ILUNI; +} + +static int +iso2022_cn_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 < 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 STATE3_DESIGNATED_CNS11643_2 +#undef STATE3_NONE +#undef STATE2_DESIGNATED_CNS11643_1 +#undef STATE2_DESIGNATED_GB2312 +#undef STATE2_NONE +#undef STATE_TWOBYTE +#undef STATE_ASCII -- cgit v1.2.3