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Edit File: Inserting-a-Hashsign.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>Inserting a Hashsign (GNU Texinfo 6.8)</title> <meta name="description" content="Inserting a Hashsign (GNU Texinfo 6.8)"> <meta name="keywords" content="Inserting a Hashsign (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="Special-Characters.html" rel="up" title="Special Characters"> <link href="Inserting-an-Ampersand.html" rel="next" title="Inserting an Ampersand"> <link href="Inserting-a-Backslash.html" rel="prev" title="Inserting a Backslash"> <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="subsection" id="Inserting-a-Hashsign"> <div class="header"> <p> Next: <a href="Inserting-an-Ampersand.html" accesskey="n" rel="next">Inserting ‘&’ with <code>@&</code> and <code>@ampchar{}</code></a>, Previous: <a href="Inserting-a-Backslash.html" accesskey="p" rel="prev">Inserting ‘\’ with <code>@backslashchar{}</code></a>, Up: <a href="Special-Characters.html" accesskey="u" rel="up">Special Characters: Inserting @ {} , \ # &</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="Inserting-_0060_0023_0027-with-_0040hashchar_007b_007d"></span><h4 class="subsection">11.1.5 Inserting ‘#’ with <code>@hashchar{}</code></h4> <span id="index-hashchar_007b_007d-_0028literal-_0023_0029"></span> <span id="index-Inserting-_0023"></span> <span id="index-Hash-sign_002c-inserting"></span> <p>Ordinarily, a hash ‘#’ is a normal character in Texinfo that can be simply typed in your input where you need it. The result is to typeset the hash character from the current font. </p> <span id="index-Number-sign_002c-inserting"></span> <span id="index-Octotherp_002c-inserting"></span> <span id="index-Sharp-sign-_0028not_0029_002c-inserting"></span> <p>This character has many other names, varying by locale, such as “number sign”, “pound”, and “octothorp”. It is also sometimes called “sharp” or “sharp sign” since it vaguely resembles the musical symbol by that name. In situations where Texinfo is used, “hash” is the most common in our experience. </p> <p>However, Texinfo uses the hash character as a special character in one restricted context: to introduce the so-called <code>#line</code> directive and variants (see <a href="External-Macro-Processors.html">External Macro Processors: Line Directives</a>). </p> <p>So, in order to typeset an actual hash character in such a place (for example, in a program that needs documentation about <code>#line</code>), it’s necessary to use <code>@hashchar{}</code> or some other construct. Here’s an example: </p> <div class="example"> <pre class="example">@hashchar{} 10 "example.c" </pre></div> <p>Although ‘<samp>@hashchar{}</samp>’ can be used nearly anywhere, there is no need for it anywhere except this unusual case. </p> </div> </body> </html>