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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_kr.h
parentd2252afcd74af0248c6141c8086d03e12a0a316f (diff)
Making the project compile with mingw32, on the same Makefile. No more separate Makefiles insanity.
Diffstat (limited to 'win32/iconv/iso2022_kr.h')
-rw-r--r--win32/iconv/iso2022_kr.h217
1 files changed, 217 insertions, 0 deletions
diff --git a/win32/iconv/iso2022_kr.h b/win32/iconv/iso2022_kr.h
new file mode 100644
index 0000000..fee7356
--- /dev/null
+++ b/win32/iconv/iso2022_kr.h
@@ -0,0 +1,217 @@
+/*
+ * 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-KR
+ */
+
+/* Specification: RFC 1557 */
+
+/* Note: CJK.INF says the SO designator needs to appear only once at the
+ beginning of a text, but to decrease the risk of ambiguities, when
+ producing ISO-2022-KR, we repeat the designator in every line containing
+ SO characters. RFC 1557 does not mandate this. */
+
+#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_KSC5601 1
+
+#define SPLIT_STATE \
+ unsigned int state1 = state & 0xff, state2 = state >> 8
+#define COMBINE_STATE \
+ state = (state2 << 8) | state1
+
+static int
+iso2022_kr_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] == 'C') {
+ state2 = STATE2_DESIGNATED_KSC5601;
+ s += 4; count += 4;
+ if (n < count+1)
+ goto none;
+ continue;
+ }
+ }
+ }
+ return RET_ILSEQ;
+ }
+ if (c == SO) {
+ if (state2 != STATE2_DESIGNATED_KSC5601)
+ 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 0 /* Accept ISO-2022-KR according to CJK.INF. */
+ if (*pwc == 0x000a || *pwc == 0x000d)
+ state2 = STATE2_NONE;
+#endif
+ COMBINE_STATE;
+ conv->istate = state;
+ return count+1;
+ } else
+ return RET_ILSEQ;
+ case STATE_TWOBYTE:
+ if (n < count+2)
+ goto none;
+ if (state2 != STATE2_DESIGNATED_KSC5601) abort();
+ if (s[0] < 0x80 && s[1] < 0x80) {
+ int ret = ksc5601_mbtowc(conv,pwc,s,2);
+ 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_kr_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;
+
+ /* 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;
+ COMBINE_STATE;
+ conv->ostate = state;
+ return count;
+ }
+ }
+
+ /* 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 = (state2 == STATE2_DESIGNATED_KSC5601 ? 0 : 4) + (state1 == STATE_TWOBYTE ? 0 : 1) + 2;
+ if (n < count)
+ return RET_TOOSMALL;
+ if (state2 != STATE2_DESIGNATED_KSC5601) {
+ r[0] = ESC;
+ r[1] = '$';
+ r[2] = ')';
+ r[3] = 'C';
+ r += 4;
+ state2 = STATE2_DESIGNATED_KSC5601;
+ }
+ 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_kr_reset (conv_t conv, unsigned char *r, int n)
+{
+ state_t state = conv->ostate;
+ SPLIT_STATE;
+ (void)state2;
+ 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 STATE2_DESIGNATED_KSC5601
+#undef STATE2_NONE
+#undef STATE_TWOBYTE
+#undef STATE_ASCII