| | 1 | /* Determine the number of screen columns needed for a string. |
| | 2 | Copyright (C) 2000-2002 Free Software Foundation, Inc. |
| | 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 | |
| | 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 */ |
| | 33 | extern int mbswidth (const char *string, int flags); |
| | 34 | |
| | 35 | /* Returns the number of screen columns needed for the NBYTES bytes |
| | 36 | starting at BUF. */ |
| | 37 | extern int mbsnwidth (const char *buf, size_t nbytes, int flags); |
projects / bison.git / blame_incremental