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-rw-r--r--REORG.TODO/iconvdata/cns11643l2.h86
1 files changed, 86 insertions, 0 deletions
diff --git a/REORG.TODO/iconvdata/cns11643l2.h b/REORG.TODO/iconvdata/cns11643l2.h
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+++ b/REORG.TODO/iconvdata/cns11643l2.h
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+/* Access functions for CNS 11643, plane 2 handling.
+   Copyright (C) 1998-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <stdint.h>
+#include <gconv.h>
+
+/* Table for CNS 11643, plane 2 to UCS4 conversion.  */
+extern const uint16_t __cns11643l2_to_ucs4_tab[];
+
+
+static inline uint32_t
+__attribute ((always_inline))
+cns11643l2_to_ucs4 (const unsigned char **s, size_t avail,
+		    unsigned char offset)
+{
+  unsigned char ch = *(*s);
+  unsigned char ch2;
+  int idx;
+
+  if (ch < offset || (ch - offset) <= 0x20 || (ch - offset) > 0x7d)
+    return __UNKNOWN_10646_CHAR;
+
+  if (avail < 2)
+    return 0;
+
+  ch2 = (*s)[1];
+  if ((ch2 - offset) <= 0x20 || (ch2 - offset) >= 0x7f)
+    return __UNKNOWN_10646_CHAR;
+
+  idx = (ch - 0x21 - offset) * 94 + (ch2 - 0x21 - offset);
+  if (idx > 0x1de1)
+    return __UNKNOWN_10646_CHAR;
+
+  (*s) += 2;
+
+  return __cns11643l2_to_ucs4_tab[idx] ?: ((*s) -= 2, __UNKNOWN_10646_CHAR);
+}
+
+
+/* The table which contains the CNS 11643 level 2 mappings.  */
+extern const char __cns11643_from_ucs4p0_tab[][3];
+
+
+static inline size_t
+__attribute ((always_inline))
+ucs4_to_cns11643l2 (uint32_t wch, unsigned char *s, size_t avail)
+{
+  unsigned int ch = (unsigned int) wch;
+  const char *cp = NULL;
+
+  if (ch >= 0x4e07 && ch <= 0x9fa4)
+    {
+      cp = __cns11643_from_ucs4p0_tab[ch - 0x3400];
+      if (cp[0] == '\2')
+	++cp;
+      else
+	cp = NULL;
+    }
+
+  if (cp == NULL)
+    return __UNKNOWN_10646_CHAR;
+
+  if (avail < 2)
+    return 0;
+
+  s[0] = cp[0];
+  s[1] = cp[1];
+
+  return 2;
+}