install-reloc: Support multi-binary installation.

[gnulib.git] / lib / unicodeio.h

diff --git a/lib/unicodeio.h b/lib/unicodeio.h
index f4bd1b7..eee7e28 100644 (file)
--- a/lib/unicodeio.h
+++ b/lib/unicodeio.h
@@ -1,17 +1,48 @@
+/* Unicode character output to streams with locale dependent encoding.
+
+   Copyright (C) 2000-2003, 2005, 2008-2013 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
 #ifndef UNICODEIO_H
 # define UNICODEIO_H
 
+# include <stddef.h>
 # include <stdio.h>
 
-# ifndef PARAMS
-#  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
-#   define PARAMS(Args) Args
-#  else
-#   define PARAMS(Args) ()
-#  endif
-# endif
+/* Converts the Unicode character CODE to its multibyte representation
+   in the current locale and calls the SUCCESS callback on the resulting
+   byte sequence.  If an error occurs, invokes the FAILURE callback instead,
+   passing it CODE and an English error string.
+   Returns whatever the callback returned.
+   Assumes that the locale doesn't change between two calls.  */
+extern long unicode_to_mb (unsigned int code,
+                           long (*success) (const char *buf, size_t buflen,
+                                            void *callback_arg),
+                           long (*failure) (unsigned int code, const char *msg,
+                                            void *callback_arg),
+                           void *callback_arg);
+
+/* Outputs the Unicode character CODE to the output stream STREAM.
+   Upon failure, exit if exit_on_error is true, otherwise output a fallback
+   notation.  */
+extern void print_unicode_char (FILE *stream, unsigned int code,
+                                int exit_on_error);
 
-/* Outputs the Unicode character CODE to the output stream STREAM.  */
-extern void print_unicode_char PARAMS((FILE *stream, unsigned int code));
+/* Simple success callback that outputs the converted string.
+   The STREAM is passed as callback_arg.  */
+extern long fwrite_success_callback (const char *buf, size_t buflen,
+                                     void *callback_arg);
 
 #endif