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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <!-- Created by GNU Texinfo 6.8, https://www.gnu.org/software/texinfo/ --> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <!-- This manual is for GNU Texinfo (version 6.8, 8 June 2021), a documentation system that can produce both online information and a printed manual from a single source using semantic markup. Copyright (C) 1988, 1990-1993, 1995-1999, 2001-2021 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". --> <title>Conditionals (GNU Texinfo 6.8)</title> <meta name="description" content="Conditionals (GNU Texinfo 6.8)"> <meta name="keywords" content="Conditionals (GNU Texinfo 6.8)"> <meta name="resource-type" content="document"> <meta name="distribution" content="global"> <meta name="Generator" content="texi2any"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link href="index.html" rel="start" title="Top"> <link href="Command-and-Variable-Index.html" rel="index" title="Command and Variable Index"> <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> <link href="index.html" rel="up" title="Top"> <link href="Defining-New-Texinfo-Commands.html" rel="next" title="Defining New Texinfo Commands"> <link href="Internationalization.html" rel="prev" title="Internationalization"> <style type="text/css"> <!-- a.copiable-anchor {visibility: hidden; text-decoration: none; line-height: 0em} a.summary-letter {text-decoration: none} blockquote.indentedblock {margin-right: 0em} div.display {margin-left: 3.2em} div.example {margin-left: 3.2em} kbd {font-style: oblique} pre.display {font-family: inherit} pre.format {font-family: inherit} pre.menu-comment {font-family: serif} pre.menu-preformatted {font-family: serif} span.nolinebreak {white-space: nowrap} span.roman {font-family: initial; font-weight: normal} span.sansserif {font-family: sans-serif; font-weight: normal} span:hover a.copiable-anchor {visibility: visible} ul.no-bullet {list-style: none} --> </style> </head> <body lang="en"> <div class="chapter" id="Conditionals"> <div class="header"> <p> Next: <a href="Defining-New-Texinfo-Commands.html" accesskey="n" rel="next">Defining New Texinfo Commands</a>, Previous: <a href="Internationalization.html" accesskey="p" rel="prev">Internationalization</a>, Up: <a href="index.html" accesskey="u" rel="up">Texinfo</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Command-and-Variable-Index.html" title="Index" rel="index">Index</a>]</p> </div> <hr> <span id="Conditionally-Visible-Text"></span><h2 class="chapter">15 Conditionally Visible Text</h2> <span id="index-Conditionally-visible-text"></span> <span id="index-Text_002c-conditionally-visible"></span> <span id="index-Visibility-of-conditional-text"></span> <span id="index-If-text-conditionally-visible"></span> <p>The <em>conditional commands</em> allow you to use different text for different output formats, or for general conditions that you define. For example, you can use them to specify different text for the printed manual and the Info output. </p> <p>The conditional commands comprise the following categories. </p> <ul> <li> Commands specific to an output format (Info, TeX, HTML, …). </li><li> Commands specific to any output format <em>excluding</em> a given one (e.g., not Info, not TeX, …). </li><li> ‘Raw’ formatter text for any output format, passed straight through with minimal (but not zero) interpretation of @-commands. </li><li> Format-independent variable substitutions, and testing if a variable is set or clear. </li></ul> <ul class="section-toc"> <li><a href="Conditional-Commands.html" accesskey="1">Conditional Commands</a></li> <li><a href="Conditional-Not-Commands.html" accesskey="2">Conditional Not Commands</a></li> <li><a href="Raw-Formatter-Commands.html" accesskey="3">Raw Formatter Commands</a></li> <li><a href="Inline-Conditionals.html" accesskey="4">Inline Conditionals: <code>@inline</code>, <code>@inlineifelse</code>, <code>@inlineraw</code></a></li> <li><a href="_0040set-_0040clear-_0040value.html" accesskey="5">Flags: <code>@set</code>, <code>@clear</code>, conditionals, and <code>@value</code></a></li> <li><a href="Testing-for-Texinfo-Commands.html" accesskey="6">Testing for Texinfo Commands: <code>@ifcommanddefined</code>, <code>@ifcommandnotdefined</code></a></li> <li><a href="Conditional-Nesting.html" accesskey="7">Conditional Nesting</a></li> </ul> </div> </body> </html>