Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 195 insertions, 0 deletions

diff --git a/REORG.TODO/iconvdata/ksc5601.h b/REORG.TODO/iconvdata/ksc5601.h
new file mode 100644
index 0000000000..9a740bdaee
--- /dev/null
+++ b/REORG.TODO/iconvdata/ksc5601.h
@@ -0,0 +1,195 @@
+/* Access functions for KS C 5601-1992 based encoding conversion.
+   Copyright (C) 1998-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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/>.  */
+
+#ifndef _KSC5601_H
+#define _KSC5601_H	1
+
+#define KSC5601_HANGUL 2350
+#define KSC5601_HANJA  4888
+#define KSC5601_SYMBOL  989
+
+#include <gconv.h>
+#include <stdint.h>
+
+/* Structure to map from UCS to KSC.  This structure should be packed
+   on all platforms.  */
+struct map
+{
+  uint16_t ucs;
+  char val[2];
+};
+
+/* Conversion table.  */
+extern const uint16_t __ksc5601_hangul_to_ucs[KSC5601_HANGUL];
+extern const uint16_t __ksc5601_sym_to_ucs[];
+extern const struct map __ksc5601_sym_from_ucs[KSC5601_SYMBOL];
+extern const uint16_t __ksc5601_hanja_to_ucs[KSC5601_HANJA];
+extern const struct map __ksc5601_hanja_from_ucs[KSC5601_HANJA];
+
+
+static inline uint32_t
+__attribute ((always_inline))
+ksc5601_to_ucs4 (const unsigned char **s, size_t avail, unsigned char offset)
+{
+  unsigned char ch = **s;
+  unsigned char ch2;
+  int idx;
+
+  /* row 94(0x7e) and row 41(0x49) are user-defined area in KS C 5601 */
+
+  if (ch < offset || (ch - offset) <= 0x20 || (ch - offset) >= 0x7e
+      || (ch - offset) == 0x49)
+    return __UNKNOWN_10646_CHAR;
+
+  if (avail < 2)
+    return 0;
+
+  ch2 = (*s)[1];
+  if (ch2 < offset || (ch2 - offset) <= 0x20 || (ch2 - offset) >= 0x7f)
+    return __UNKNOWN_10646_CHAR;
+
+  idx = (ch - offset - 0x21) * 94 + (ch2 - offset - 0x21);
+
+  /* 1410 = 15 * 94 , 3760 = 40 * 94
+     Hangul in KS C 5601 : row 16 - row 40 */
+
+  *s += 2;
+
+  if (idx >= 1410 && idx < 1410 + KSC5601_HANGUL)
+    return (__ksc5601_hangul_to_ucs[idx - 1410]
+	    ?: (*s -= 2, __UNKNOWN_10646_CHAR));
+  else if (idx >= 3854)
+    /* Hanja : row 42 - row 93 : 3854 = 94 * (42-1) */
+   return (__ksc5601_hanja_to_ucs[idx - 3854]
+	   ?: (*s -= 2, __UNKNOWN_10646_CHAR));
+  else if (idx <= 1114)
+    return __ksc5601_sym_to_ucs[idx] ?: (*s -= 2, __UNKNOWN_10646_CHAR);
+
+  *s -= 2;
+  return __UNKNOWN_10646_CHAR;
+}
+
+static inline size_t
+__attribute ((always_inline))
+ucs4_to_ksc5601_hangul (uint32_t wch, unsigned char *s, size_t avail)
+{
+  int l = 0;
+  int u = KSC5601_HANGUL - 1;
+  uint32_t try;
+
+  while (l <= u)
+    {
+      int m = (l + u) / 2;
+      try = (uint32_t) __ksc5601_hangul_to_ucs[m];
+      if (try > wch)
+	u = m - 1;
+      else if (try < wch)
+	l= m + 1;
+      else
+	{
+	  if (avail < 2)
+	    return 0;
+
+	  s[0] = (m / 94) + 0x30;
+	  s[1] = (m % 94) + 0x21;
+
+	  return 2;
+	}
+    }
+
+  return __UNKNOWN_10646_CHAR;
+}
+
+
+static inline size_t
+__attribute ((always_inline))
+ucs4_to_ksc5601_hanja (uint32_t wch, unsigned char *s, size_t avail)
+{
+  int l = 0;
+  int u = KSC5601_HANJA - 1;
+  uint32_t try;
+
+  while (l <= u)
+    {
+      int m = (l + u) / 2;
+      try = (uint32_t) __ksc5601_hanja_from_ucs[m].ucs;
+      if (try > wch)
+	u=m-1;
+      else if (try < wch)
+	l = m + 1;
+      else
+	{
+	  if (avail < 2)
+	    return 0;
+
+	  s[0] = __ksc5601_hanja_from_ucs[m].val[0];
+	  s[1] = __ksc5601_hanja_from_ucs[m].val[1];
+
+	  return 2;
+	}
+    }
+
+  return __UNKNOWN_10646_CHAR;
+}
+
+static inline  size_t
+__attribute ((always_inline))
+ucs4_to_ksc5601_sym (uint32_t wch, unsigned char *s, size_t avail)
+{
+  int l = 0;
+  int u = KSC5601_SYMBOL - 1;
+  uint32_t try;
+
+  while (l <= u)
+    {
+      int m = (l + u) / 2;
+      try = __ksc5601_sym_from_ucs[m].ucs;
+      if (try > wch)
+	u = m - 1;
+      else if (try < wch)
+	l = m + 1;
+      else
+	{
+	  if (avail < 2)
+	    return 0;
+
+	  s[0] = __ksc5601_sym_from_ucs[m].val[0];
+	  s[1] = __ksc5601_sym_from_ucs[m].val[1];
+
+	  return 2;
+	}
+    }
+
+  return __UNKNOWN_10646_CHAR;
+}
+
+
+static inline size_t
+__attribute ((always_inline))
+ucs4_to_ksc5601 (uint32_t wch, unsigned char *s, size_t avail)
+{
+  if (wch >= 0xac00 && wch <= 0xd7a3)
+    return ucs4_to_ksc5601_hangul (wch, s, avail);
+  else if ((wch >= 0x4e00 && wch <= 0x9fff)
+	   || (wch >= 0xf900 && wch <= 0xfa0b))
+    return ucs4_to_ksc5601_hanja (wch, s, avail);
+  else
+    return ucs4_to_ksc5601_sym (wch, s, avail);
+}
+
+#endif /* ksc5601.h */