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.\" ========================================================================
.\"
.IX Title "CharWidth 3pm"
.TH CharWidth 3pm "2003-06-25" "perl v5.14.2" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Text::CharWidth \- Get number of occupied columns of a string on terminal
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 4
\&  use Text::CharWidth qw(mbwidth mbswidth mblen);
\&  mbwidth(string);
\&  mbswidth(string);
\&  mblen(string);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This module supplies features similar as \fIwcwidth\fR\|(3) and \fIwcswidth\fR\|(3)
in C language.
.PP
Characters have its own width on terminal depending on locale.
For example, \s-1ASCII\s0 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 \s-1ISO\-8859\-11\s0 Thai, Unicode, and so on) occupy zero columns per
character.  \fImbwidth()\fR gives the width of the first character of
the given string and \fImbswidth()\fR gives the width of the whole given
string.
.PP
The names of mbwidth and mbswidth came from \*(L"multibyte\*(R" versions
of wcwidth and wcswidth which are \*(L"wide character\*(R" versions.
.PP
\&\fImblen(string)\fR 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 \s-1UTF\-8\s0, EUC-JP, EUC-KR,
\&\s-1GB2312\s0, or Big5.
.PP
\&\fImbwidth(string)\fR returns the width of the first character of the
string.  \fImbswidth(string)\fR returns the width of the whole string.
.PP
Parameters are to be given in locale encodings, not always in \s-1UTF\-8\s0.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fIlocale\fR\|(5), \fIwcwidth\fR\|(3), \fIwcswidth\fR\|(3)
.SH "AUTHOR"
.IX Header "AUTHOR"
Tomohiro \s-1KUBOTA\s0, <kubota@debian.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
Copyright 2003 by Tomohiro \s-1KUBOTA\s0
.PP
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.