kmscon/external/wcwidth.h
David Herrmann bc40e1ae53 tsm: unicode: add wcwidth() implementation
wcwidth() is a POSIX function that returns the number of cells that a
wide-character occupies. The glibc function cannot be used as it depends
on the locale and we need _always_ UTF8 no matter what the locale is.

This implementation is provided by Markus Kuhn and is equivalent to
xterm's behavior.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
2012-12-10 15:36:04 +01:00

19 lines
554 B
C

/*
* This is an implementation of wcwidth() and wcswidth() (defined in
* IEEE Std 1002.1-2001) for Unicode.
*
* Markus Kuhn -- 2007-05-26 (Unicode 5.0)
*
* Permission to use, copy, modify, and distribute this software
* for any purpose and without fee is hereby granted. The author
* disclaims all warranties with regard to this software.
*/
#include <stdlib.h>
#include <wchar.h>
int mk_wcwidth(wchar_t ucs);
int mk_wcswidth(const wchar_t *pwcs, size_t n);
int mk_wcwidth_cjk(wchar_t ucs);
int mk_wcswidth_cjk(const wchar_t *pwcs, size_t n);