/* Determine the number of screen columns needed for a string. Copyright (C) 2000-2001 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 #ifndef PARAMS # if __STDC__ || defined __GNUC__ || defined __SUNPRO_C || defined __cplusplus || __PROTOTYPES # define PARAMS(Args) Args # else # define PARAMS(Args) () # endif #endif /* 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 PARAMS ((const char *string, int flags)); /* Returns the number of screen columns needed for the NBYTES bytes starting at BUF. */ extern int mbsnwidth PARAMS ((const char *buf, size_t nbytes, int flags));