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Loads of platforms appear to have old or broken Unicode character type

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information and are missing widths for relatively common Unicode
characters (so mbtowc() works, but wcwidth() fails). So if wcwidth()
returns -1, assume a width of 1 instead of ignoring the character.
This commit is contained in:
nicm 2016-04-27 09:36:25 +00:00
parent d3546cc85c
commit 23fdbc9ea6
1 changed files with 8 additions and 0 deletions
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8
utf8.c
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@ -119,6 +119,14 @@ utf8_width(wchar_t wc)
width = wcwidth(wc);
if (width < 0 || width > 0xff) {
log_debug("Unicode %04x, wcwidth() %d", wc, width);
/*
* Many platforms have no width for relatively common
* characters (wcwidth() returns -1); assume width 1 in this
* case and hope for the best.
*/
if (width < 0)
return (1);
return (-1);
}
return (width);