[bison.git] / lib / mbswidth.h

/* 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);
Commit	Line	Data
c0acc0f5	1	/* Determine the number of screen columns needed for a string.
f6cf0f6e	2	Copyright (C) 2000-2002 Free Software Foundation, Inc.
c0acc0f5 PE	3
	4	This program is free software; you can redistribute it and/or modify
	5	it under the terms of the GNU General Public License as published by
	6	the Free Software Foundation; either version 2, or (at your option)
	7	any later version.
	8
	9	This program is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	GNU General Public License for more details.
	13
	14	You should have received a copy of the GNU General Public License
	15	along with this program; if not, write to the Free Software Foundation,
	16	Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	17
	18	#include <stddef.h>
	19
c0acc0f5 PE	20	/* Optional flags to influence mbswidth/mbsnwidth behavior. */
	21
	22	/* If this bit is set, return -1 upon finding an invalid or incomplete
	23	character. Otherwise, assume invalid characters have width 1. */
	24	#define MBSW_REJECT_INVALID 1
	25
	26	/* If this bit is set, return -1 upon finding a non-printable character.
	27	Otherwise, assume unprintable characters have width 0 if they are
	28	control characters and 1 otherwise. */
	29	#define MBSW_REJECT_UNPRINTABLE 2
	30
	31	/* Returns the number of screen columns needed for STRING. */
	32	#define mbswidth gnu_mbswidth /* avoid clash with UnixWare 7.1.1 function */
f6cf0f6e	33	extern int mbswidth (const char *string, int flags);
c0acc0f5 PE	34
	35	/* Returns the number of screen columns needed for the NBYTES bytes
	36	starting at BUF. */
f6cf0f6e	37	extern int mbsnwidth (const char *buf, size_t nbytes, int flags);