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

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This is a development version of Perl. </div> <h1><a id="toc">CONTENTS</a></h1> <ul> <li> <a class="text-decoration-none" href="#NAME">NAME</a> </li> <li> <a class="text-decoration-none" href="#SYNOPSIS">SYNOPSIS</a> </li> <li> <a class="text-decoration-none" href="#DESCRIPTION">DESCRIPTION</a> </li> <li> <a class="text-decoration-none" href="#EXPORTS">EXPORTS</a> </li> <li> <a class="text-decoration-none" href="#EXAMPLE">EXAMPLE</a> </li> <li> <a class="text-decoration-none" href="#BUGS">BUGS</a> </li> <li> <a class="text-decoration-none" href="#LICENSE">LICENSE</a> </li> </ul> <h1 id="NAME"><a class="permalink" href="#NAME">#</a>NAME</h1> <p>Text::Tabs - expand and unexpand tabs like unix expand(1) and unexpand(1)</p> <h1 id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">#</a>SYNOPSIS</h1> <pre><code>use Text::Tabs; $tabstop = 4; # default = 8 @lines_without_tabs = expand(@lines_with_tabs); @lines_with_tabs = unexpand(@lines_without_tabs);</code></pre> <h1 id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">#</a>DESCRIPTION</h1> <p>Text::Tabs does most of what the unix utilities expand(1) and unexpand(1) do. Given a line with tabs in it, <code>expand</code> replaces those tabs with the appropriate number of spaces. Given a line with or without tabs in it, <code>unexpand</code> adds tabs when it can save bytes by doing so, like the <code>unexpand -a</code> command.</p> <p>Unlike the old unix utilities, this module correctly accounts for any Unicode combining characters (such as diacriticals) that may occur in each line for both expansion and unexpansion. These are overstrike characters that do not increment the logical position. Make sure you have the appropriate Unicode settings enabled.</p> <h1 id="EXPORTS"><a class="permalink" href="#EXPORTS">#</a>EXPORTS</h1> <p>The following are exported:</p> <dl> <dt id="expand"><a class="permalink" href="#expand">#</a>expand</dt> <dd> </dd> <dt id="unexpand"><a class="permalink" href="#unexpand">#</a>unexpand</dt> <dd> </dd> <dt id="$tabstop"><a class="permalink" href="#$tabstop">#</a><a id="tabstop"></a>$tabstop</dt> <dd> <p>The <code>$tabstop</code> variable controls how many column positions apart each tabstop is. The default is 8.</p> <p>Please note that <code>local($tabstop)</code> doesn't do the right thing and if you want to use <code>local</code> to override <code>$tabstop</code>, you need to use <code>local($Text::Tabs::tabstop)</code>.</p> </dd> </dl> <h1 id="EXAMPLE"><a class="permalink" href="#EXAMPLE">#</a>EXAMPLE</h1> <pre><code>#!perl # unexpand -a use Text::Tabs; while (<>) { print unexpand $_; }</code></pre> <p>Instead of the shell's <code>expand</code> command, use:</p> <pre><code>perl -MText::Tabs -n -e 'print expand $_'</code></pre> <p>Instead of the shell's <code>unexpand -a</code> command, use:</p> <pre><code>perl -MText::Tabs -n -e 'print unexpand $_'</code></pre> <h1 id="BUGS"><a class="permalink" href="#BUGS">#</a>BUGS</h1> <p>Text::Tabs handles only tabs (<code>"\t"</code>) and combining characters (<code>/\pM/</code>). It doesn't count backwards for backspaces (<code>"\t"</code>), omit other non-printing control characters (<code>/\pC/</code>), or otherwise deal with any other zero-, half-, and full-width characters.</p> <h1 id="LICENSE"><a class="permalink" href="#LICENSE">#</a>LICENSE</h1> <p>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.</p> </div> <div id="footer"> <p>Perldoc Browser is maintained by Dan Book (<a href="https://metacpan.org/author/DBOOK">DBOOK</a>). Please contact him via the <a href="https://github.com/Grinnz/perldoc-browser/issues">GitHub issue tracker</a> or <a href="mailto:dbook@cpan.org">email</a> regarding any issues with the site itself, search, or rendering of documentation.</p> <p>The Perl documentation is maintained by the Perl 5 Porters in the development of Perl. Please contact them via the <a href="https://github.com/Perl/perl5/issues">Perl issue tracker</a>, the <a href="https://lists.perl.org/list/perl5-porters.html">mailing list</a>, or <a href="https://kiwiirc.com/client/irc.perl.org/p5p">IRC</a> to report any issues with the contents or format of the documentation.</p> </div> </div> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.slim.min.js" integrity="sha512-/DXTXr6nQodMUiq+IUJYCt2PPOUjrHJ9wFrqpJ3XkgPNOZVfMok7cRw6CSxyCQxXn6ozlESsSh1/sMCTF1rL/g==" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.1/umd/popper.min.js" integrity="sha512-ubuT8Z88WxezgSqf3RLuNi5lmjstiJcyezx34yIU2gAHonIi27Na7atqzUZCOoY4CExaoFumzOsFQ2Ch+I/HCw==" crossorigin="anonymous"></script> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script> <script src="/js/highlight.pack.js"></script> <script>hljs.highlightAll();</script> </body> </html>

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