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Text::Tabs(3pm)        Perl Programmers Reference Guide        Text::Tabs(3pm)




NAME

       Text::Tabs - expand and unexpand tabs like unix expand(1) and
       unexpand(1)


SYNOPSIS

         use Text::Tabs;

         $tabstop = 4;  # default = 8
         @lines_without_tabs = expand(@lines_with_tabs);
         @lines_with_tabs = unexpand(@lines_without_tabs);


DESCRIPTION

       Text::Tabs does most of what the unix utilities expand(1) and
       unexpand(1) do.  Given a line with tabs in it, "expand" replaces those
       tabs with the appropriate number of spaces.  Given a line with or
       without tabs in it, "unexpand" adds tabs when it can save bytes by
       doing so, like the "unexpand -a" command.

       Unlike the old unix utilities, this module correctly accounts for any
       Unicode combining characters (such as diacriticals) that may occur in
       each line for both expansion and unexpansion.  These are overstrike
       characters that do not increment the logical position.  Make sure you
       have the appropriate Unicode settings enabled.


EXPORTS

       The following are exported:

       expand
       unexpand
       $tabstop
           The $tabstop variable controls how many column positions apart each
           tabstop is.  The default is 8.

           Please note that "local($tabstop)" doesn't do the right thing and
           if you want to use "local" to override $tabstop, you need to use
           "local($Text::Tabs::tabstop)".


EXAMPLE

         #!perl
         # unexpand -a
         use Text::Tabs;

         while (<>) {
           print unexpand $_;
         }

       Instead of the shell's "expand" command, use:

         perl -MText::Tabs -n -e 'print expand $_'

       Instead of the shell's "unexpand -a" command, use:

         perl -MText::Tabs -n -e 'print unexpand $_'


SUBVERSION

       This module comes in two flavors: one for modern perls (5.10 and above)
       and one for ancient obsolete perls.  The version for modern perls has
       support for Unicode.  The version for old perls does not.  You can tell
       which version you have installed by looking at $Text::Tabs::SUBVERSION:
       it is "old" for obsolete perls and "modern" for current perls.

       This man page is for the version for modern perls and so that's
       probably what you've got.


BUGS

       Text::Tabs handles only tabs ("\t") and combining characters ("/\pM/").
       It doesn't count backwards for backspaces ("\t"), omit other non-
       printing control characters ("/\pC/"), or otherwise deal with any other
       zero-, half-, and full-width characters.


LICENSE

       Copyright (C) 1996-2002,2005,2006 David Muir Sharnoff.  Copyright (C)
       2005 Aristotle Pagaltzis Copyright (C) 2012-2013 Google, Inc.  This
       module may be modified, used, copied, and redistributed at your own
       risk.  Although allowed by the preceding license, please do not
       publicly redistribute modified versions of this code with the name
       "Text::Tabs" unless it passes the unmodified Text::Tabs test suite.



perl v5.24.0                      2016-02-05                   Text::Tabs(3pm)

perl 5.24 - Generated Sat Nov 26 06:10:10 CST 2016
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