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Diffstat (limited to 'doc/uniwidth.texi')
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diff --git a/doc/uniwidth.texi b/doc/uniwidth.texi index 8c53d04..a05d101 100644 --- a/doc/uniwidth.texi +++ b/doc/uniwidth.texi @@ -1,10 +1,12 @@ @node uniwidth.h @chapter Display width @code{<uniwidth.h>} +@cindex width This include file declares functions that return the display width, measured in columns, of characters or strings, when output to a device that uses non-proportional fonts. +@cindex ambiguous width Note that for some rarely used characters the actual fonts or terminal emulators can use a different width. There is no mechanism for communicating the display width of characters across a Unix pseudo-terminal (tty). Also, @@ -16,6 +18,9 @@ most characters but can fail to represent the actual display width. These functions are locale dependent. The @var{encoding} argument identifies the encoding (e.g@. @code{"ISO-8859-2"} for Polish). +@cindex Unicode character, width +@cindex halfwidth +@cindex fullwidth @deftypefun int uc_width (ucs4_t @var{uc}, const char *@var{encoding}) Determines and returns the number of column positions required for @var{uc}. Returns -1 if @var{uc} is a control character that has an influence on the |