New module 'vasnprintf-posix'.

[gnulib.git] / lib / unicodeio.h

diff --git a/lib/unicodeio.h b/lib/unicodeio.h
index ae6b939..9560f6e 100644 (file)
--- a/lib/unicodeio.h
+++ b/lib/unicodeio.h
@@ -1,9 +1,49 @@
+/* Unicode character output to streams with locale dependent encoding.
+
+   Copyright (C) 2000-2003, 2005 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 2, 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, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
 #ifndef UNICODEIO_H
 # define UNICODEIO_H
 
+# include <stddef.h>
 # include <stdio.h>
 
-/* Outputs the Unicode character CODE to the output stream STREAM.  */
-extern void print_unicode_char (FILE *stream, unsigned int code);
+/* 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);
+
+/* 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