1 files changed, 94 insertions, 0 deletions
diff --git a/MSVC/iconv/big5hkscs.h b/MSVC/iconv/big5hkscs.h
new file mode 100644
index 0000000..2d51ffc
--- /dev/null
+++ b/MSVC/iconv/big5hkscs.h
@@ -0,0 +1,94 @@
+/*
+ * 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.
+ */
+
+/*
+ * BIG5-HKSCS
+ */
+
+/*
+ * BIG5-HKSCS can be downloaded from
+ *   http://www.info.gov.hk/digital21/eng/hkscs/download.html
+ *   http://www.info.gov.hk/digital21/eng/hkscs/index.html
+ *
+ * It extends BIG5 (without the rows 0xC6..0xC7) through the ranges
+ *
+ *   0x{88..8D}{40..7E,A1..FE}      641 characters
+ *   0x{8E..A0}{40..7E,A1..FE}     2898 characters
+ *   0x{C6..C8}{40..7E,A1..FE}      359 characters
+ *   0xF9{D6..FE}                    41 characters
+ *   0x{FA..FE}{40..7E,A1..FE}      763 characters
+ *
+ * It thereby introduces an irreversible mapping
+ *   0x8BF8   0x9F9C
+ *   0xC074   0x9F9C
+ */
+
+#include "hkscs.h"
+
+static int
+big5hkscs_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
+{
+  unsigned char c = *s;
+  /* Code set 0 (ASCII) */
+  if (c < 0x80)
+    return ascii_mbtowc(conv,pwc,s,n);
+  /* Code set 1 (BIG5 extended) */
+  if (c >= 0xa1 && c < 0xff) {
+    if (n < 2)
+      return RET_TOOFEW(0);
+    {
+      unsigned char c2 = s[1];
+      if ((c2 >= 0x40 && c2 < 0x7f) || (c2 >= 0xa1 && c2 < 0xff)) {
+        if (!((c == 0xc6 && c2 >= 0xa1) || c == 0xc7)) {
+          int ret = big5_mbtowc(conv,pwc,s,2);
+          if (ret != RET_ILSEQ)
+            return ret;
+        }
+      }
+    }
+  }
+  return hkscs_mbtowc(conv,pwc,s,n);
+}
+
+static int
+big5hkscs_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
+{
+  unsigned char buf[2];
+  int ret;
+
+  /* Code set 0 (ASCII) */
+  ret = ascii_wctomb(conv,r,wc,n);
+  if (ret != RET_ILUNI)
+    return ret;
+
+  /* Code set 1 (BIG5 extended) */
+  ret = big5_wctomb(conv,buf,wc,2);
+  if (ret != RET_ILUNI) {
+    if (ret != 2) abort();
+    if (!((buf[0] == 0xc6 && buf[1] >= 0xa1) || buf[0] == 0xc7)) {
+      if (n < 2)
+        return RET_TOOSMALL;
+      r[0] = buf[0];
+      r[1] = buf[1];
+      return 2;
+    }
+  }
+  return hkscs_wctomb(conv,r,wc,n);
+}