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Edit File: Inline-Conditionals.html
<!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>Inline Conditionals (GNU Texinfo 6.8)</title> <meta name="description" content="Inline Conditionals (GNU Texinfo 6.8)"> <meta name="keywords" content="Inline 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="Conditionals.html" rel="up" title="Conditionals"> <link href="_0040set-_0040clear-_0040value.html" rel="next" title="@set @clear @value"> <link href="Raw-Formatter-Commands.html" rel="prev" title="Raw Formatter Commands"> <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="section" id="Inline-Conditionals"> <div class="header"> <p> Next: <a href="_0040set-_0040clear-_0040value.html" accesskey="n" rel="next">Flags: <code>@set</code>, <code>@clear</code>, conditionals, and <code>@value</code></a>, Previous: <a href="Raw-Formatter-Commands.html" accesskey="p" rel="prev">Raw Formatter Commands</a>, Up: <a href="Conditionals.html" accesskey="u" rel="up">Conditionally Visible Text</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="Inline-Conditionals_003a-_0040inline_002c-_0040inlineifelse_002c-_0040inlineraw"></span><h3 class="section">15.4 Inline Conditionals: <code>@inline</code>, <code>@inlineifelse</code>, <code>@inlineraw</code></h3> <span id="index-inlinefmt"></span> <span id="index-inlinefmtifelse"></span> <span id="index-inlineraw"></span> <span id="index-Inline-conditionals"></span> <span id="index-Conditional-commands_002c-inline"></span> <span id="index-Brace_002ddelimited-conditional-text"></span> <span id="index-Newlines_002c-avoiding-in-conditionals"></span> <span id="index-Whitespace_002c-controlling-in-conditionals"></span> <p>Texinfo provides a set of conditional commands with arguments given within braces: </p> <dl compact="compact"> <dt><span><code>@inlinefmt{<var>format</var>, <var>text</var>}</code></span></dt> <dd><p>Process the Texinfo <var>text</var> if <var>format</var> output is being generated. </p> </dd> <dt><span><code>@inlinefmtifelse{<var>format</var>, <var>then-text</var>, <var>else-text</var>}</code></span></dt> <dd><p>Process the Texinfo <var>then-text</var> if <var>format</var> output is being generated; otherwise, process <var>else-text</var>. </p> </dd> <dt><span><code>@inlineraw{<var>format</var>, <var>text</var>}</code></span></dt> <dd><p>Similar, but for raw <var>text</var> (see <a href="Raw-Formatter-Commands.html">Raw Formatter Commands</a>). </p></dd> </dl> <p>The supported <var>format</var> names are: </p> <div class="example"> <pre class="example">docbook html info plaintext tex xml </pre></div> <p>For example, </p> <div class="example"> <pre class="example">@inlinefmt{html, @emph{HTML-only text}} </pre></div> <p>is nearly equivalent to </p> <div class="example"> <pre class="example">@ifhtml @emph{HTML-only text} @end ifhtml </pre></div> <p>except that no whitespace is added, as happens in the latter (environment) case. </p> <p>In these commands, whitespace is ignored after the comma separating the arguments, as usual, but is <em>not</em> ignored at the end of <var>text</var>. </p> <p>To insert a literal at sign, left brace, or right brace in one of the arguments, you must use the alphabetic commands <code>@atchar{}</code> (see <a href="Inserting-an-Atsign.html">Inserting ‘@’ with <code>@@</code> and <code>@atchar{}</code></a>), and <code>@lbracechar{}</code> or <code>@rbracechar{}</code> (see <a href="Inserting-Braces.html">Inserting ‘{ ‘}’ with <code>@{ @}</code> and <code>@l rbracechar{}</code></a>), or the parsing will become confused. </p> <p>With <code>@inlinefmtifelse</code>, it is also necessary to use <code>@comma{}</code> to avoid mistaking a ‘<samp>,</samp>’ in the text for the delimiter. With <code>@inlinefmt</code> and <code>@inlineraw</code>, <code>@comma{}</code> is not required (though it’s fine to use it), since these commands always have exactly two arguments. </p> <p>For TeX, the processed <var>text</var> cannot contain newline-delimited commands. Text to be ignored (i.e., for non-TeX) can, though. </p> <p>Two other <code>@inline...</code> conditionals complement the <code>@ifset</code> and <code>@ifclear</code> commands; see the next section. </p> </div> <hr> <div class="header"> <p> Next: <a href="_0040set-_0040clear-_0040value.html">Flags: <code>@set</code>, <code>@clear</code>, conditionals, and <code>@value</code></a>, Previous: <a href="Raw-Formatter-Commands.html">Raw Formatter Commands</a>, Up: <a href="Conditionals.html">Conditionally Visible Text</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> </body> </html>