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textutil::wcswidth - Procedures to compute terminal width of strings

Bugs, Ideas, Feedback

       This document, and the package it describes, will undoubtedly contain bugs and  other  problems.   Please
       report  such  in  the  category  textutil  of the TcllibTrackers [http://core.tcl.tk/tcllib/reportlist].
       Please also report any ideas for enhancements you may have for either package and/or documentation.

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Category

       Text processing

tcllib                                                35.3                              textutil::wcswidth(3tcl)

Description

       The  package  textutil::wcswidth  provides  commands that determine character type and width when used in
       terminals, and the length of strings when printed in a terminal.

       The data underlying the  functionality  of  this  package  is  provided  by  the  Unicode  database  file
       http://www.unicode.org/Public/UCD/latest/ucd/EastAsianWidth.txt.

       The complete set of procedures is described below.

       ::textutil::wcswidthstring
              Returns  the  number  of  character  cells taken by the string when printed to the terminal.  This
              takes double-wide characters from the various Asian and other scripts into account.

       ::textutil::wcswidth_charchar
              Returns the number of character cells taken by the character when printed to the terminal.

              Beware: The character char is specified as Unicode codepoint.

       ::textutil::wcswidth_typechar
              Returns the character type of the specified character.  This a single character in the set  of  A,
              F,         H,         N,         Na,         and         W,         as        specified        per
              http://www.unicode.org/Public/UCD/latest/ucd/EastAsianWidth.txtBeware: The character char is specified as Unicode codepoint.

Keywords

       character type, character width, double-wide character, prefix, regular expression, string

Name

       textutil::wcswidth - Procedures to compute terminal width of strings

See Also

regexp(3tcl), split(3tcl), string(3tcl)

Synopsis

       package require Tcl8.59

       package require textutil::wcswidth?35.3?::textutil::wcswidthstring::textutil::wcswidth_charchar::textutil::wcswidth_typechar

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See Also