Imported Upstream version 0.5.3

[pkg/abook.git] / mbswidth.h

diff --git a/mbswidth.h b/mbswidth.h
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+/* Determine the number of screen columns needed for a string.
+   Copyright (C) 2000-2002 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <stddef.h>
+
+/* Optional flags to influence mbswidth/mbsnwidth behavior.  */
+
+/* If this bit is set, return -1 upon finding an invalid or incomplete
+   character.  Otherwise, assume invalid characters have width 1.  */
+#define MBSW_REJECT_INVALID 1
+
+/* If this bit is set, return -1 upon finding a non-printable character.
+   Otherwise, assume unprintable characters have width 0 if they are
+   control characters and 1 otherwise.  */
+#define MBSW_REJECT_UNPRINTABLE        2
+
+/* Returns the number of screen columns needed for STRING.  */
+#define mbswidth gnu_mbswidth  /* avoid clash with UnixWare 7.1.1 function */
+extern int mbswidth (const char *string, int flags);
+
+/* Returns the number of screen columns needed for the NBYTES bytes
+   starting at BUF.  */
+extern int mbsnwidth (const char *buf, size_t nbytes, int flags);
+
+
+extern int mbsnbytes (const char *string, size_t nbytes, int maxwidth, int flags);
+