phpman > perldoc > Text::CharWidth

NAME
    Text::CharWidth - Get number of occupied columns of a string on terminal

SYNOPSIS
      use Text::CharWidth qw(mbwidth mbswidth mblen);
      mbwidth(string);
      mbswidth(string);
      mblen(string);

DESCRIPTION
    This module supplies features similar as wcwidth(3) and wcswidth(3) in C language.

    Characters have its own width on terminal depending on locale. For example, ASCII characters
    occupy one column per character, east Asian fullwidth characters (like Hiragana or Han
    Ideograph) occupy two columns per character, and combining characters (apperaring in ISO-8859-11
    Thai, Unicode, and so on) occupy zero columns per character. mbwidth() gives the width of the
    first character of the given string and mbswidth() gives the width of the whole given string.

    The names of mbwidth and mbswidth came from "multibyte" versions of wcwidth and wcswidth which
    are "wide character" versions.

    *mblen(string)* returns number of bytes of the first character of the string. Please note that a
    character may consist of multiple bytes in multibyte encodings such as UTF-8, EUC-JP, EUC-KR,
    GB2312, or Big5.

    *mbwidth(string)* returns the width of the first character of the string. *mbswidth(string)*
    returns the width of the whole string.

    Parameters are to be given in locale encodings, not always in UTF-8.

SEE ALSO
    locale(5), wcwidth(3), wcswidth(3)

AUTHOR
    Tomohiro KUBOTA, <kubota AT debian.org>

COPYRIGHT AND LICENSE
    Copyright 2003 by Tomohiro KUBOTA

    This library is free software; you can redistribute it and/or modify it under the same terms as
    Perl itself.