1 files changed, 146 insertions, 0 deletions
diff --git a/locale/programs/stringtrans.c b/locale/programs/stringtrans.c
new file mode 100644
index 0000000000..bff5aa41a2
--- /dev/null
+++ b/locale/programs/stringtrans.c
@@ -0,0 +1,146 @@
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+COntributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
+
+The GNU C 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 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C 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.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include "charset.h"
+#include "stringtrans.h"
+
+
+/* Global variable.  */
+enum encoding_method encoding_method = ENC_UCS4;
+
+
+void *xmalloc (size_t __n);
+void *xrealloc (void *__p, size_t __n);
+
+
+#define ADDC(ch)							    \
+  do									    \
+    {									    \
+      if (bufact == bufmax)						    \
+	{								    \
+	  bufmax *= 2;							    \
+	  buf = xrealloc (buf, bufmax);					    \
+	}								    \
+      buf[bufact++] = (ch);						    \
+    }									    \
+  while (0)
+
+
+char *
+translate_string (char *str, struct charset_t *charset)
+{
+  char *buf;
+  size_t bufact = 0;
+  size_t bufmax = 56;
+
+  buf = (char *) xmalloc (bufmax);
+
+  while (str[0] != '\0')
+    {
+      char *tp;
+      unsigned int value;
+
+      if (str[0] != '<')
+	{
+	  ADDC (*str++);
+	  continue;
+	}
+
+      tp = &str[1];
+      while (tp[0] != '\0' && tp[0] != '>')
+	if (tp[0] == '\\')
+	  if (tp[1] != '\0')
+	    tp += 2;
+	  else
+	    ++tp;
+	else
+	  ++tp;
+
+      if (tp[0] == '\0')
+	{
+	  free (buf);
+	  return NULL;
+	}
+
+      value = charset_find_value (charset, str + 1, tp - (str + 1));
+      if (value == ILLEGAL_CHAR_VALUE)
+	{
+	  free (buf);
+	  return NULL;
+	}
+      else
+	{
+	  /* Encode string using current method.  */
+	  char *cp;
+
+	  if (bufmax - bufact < 8)
+	    {
+	      bufmax *= 2;
+	      buf = (char *) xrealloc (buf, bufmax);
+	    }
+
+	  cp = &buf[bufact];
+	  if (encode_char (value, &cp) < 0)
+	    {
+	      free (buf);
+	      return NULL;
+	    }
+	  bufact = cp - buf;
+	}
+
+      str = &tp[1];
+    }
+
+  ADDC ('\0');
+
+  return buf;;
+}
+
+
+int
+encode_char (unsigned int value, char **cpp)
+{
+  switch (encoding_method)
+    {
+    case ENC_UCS1:
+      if (value > 255)
+	return -11;
+      *(*cpp)++ = (char) value;
+      break;
+
+    case ENC_UCS4:
+      *(*cpp)++ = (char) (value >> 24);
+      *(*cpp)++ = (char) ((value >> 16) & 0xff);
+      *(*cpp)++ = (char) ((value >> 8) & 0xff);
+      *(*cpp)++ = (char) (value & 0xff);
+      break;
+
+    default:
+      return -1;
+    }
+
+  return 0;
+}