/* Display width functions. Copyright (C) 2001-2002, 2005 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU Library 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 Library General Public License for more details. You should have received a copy of the GNU Library 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 _UNIWIDTH_H #define _UNIWIDTH_H #include "unitypes.h" /* Get size_t. */ #include <stddef.h> #ifdef __cplusplus extern "C" { #endif /* Display width. */ /* These functions are locale dependent. The encoding argument identifies the encoding (e.g. "ISO-8859-2" for Polish). */ /* Return the encoding of the current locale. */ extern const char * locale_charset (void); /* Determine number of column positions required for UC. */ extern int uc_width (ucs4_t uc, const char *encoding); /* Determine number of column positions required for first N units (or fewer if S ends before this) in S. */ extern int u8_width (const uint8_t *s, size_t n, const char *encoding); extern int u16_width (const uint16_t *s, size_t n, const char *encoding); extern int u32_width (const uint32_t *s, size_t n, const char *encoding); /* Determine number of column positions required for S. */ extern int u8_strwidth (const uint8_t *s, const char *encoding); extern int u16_strwidth (const uint16_t *s, const char *encoding); extern int u32_strwidth (const uint32_t *s, const char *encoding); #ifdef __cplusplus } #endif #endif /* _UNIWIDTH_H */