diff options
Diffstat (limited to 'doc/groff.html.node/Preprocessor-Intro.html')
| -rw-r--r-- | doc/groff.html.node/Preprocessor-Intro.html | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/doc/groff.html.node/Preprocessor-Intro.html b/doc/groff.html.node/Preprocessor-Intro.html new file mode 100644 index 0000000..7bb43a7 --- /dev/null +++ b/doc/groff.html.node/Preprocessor-Intro.html @@ -0,0 +1,78 @@ +<!DOCTYPE html> +<html> +<!-- Created by GNU Texinfo 7.0.3, https://www.gnu.org/software/texinfo/ --> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> +<!-- This manual documents GNU troff version 1.23.0. + +Copyright © 1994-2023 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, no Front-Cover Texts, and no Back-Cover Texts. A +copy of the license is included in the section entitled "GNU Free +Documentation License". --> +<title>Preprocessor Intro (The GNU Troff Manual)</title> + +<meta name="description" content="Preprocessor Intro (The GNU Troff Manual)"> +<meta name="keywords" content="Preprocessor Intro (The GNU Troff Manual)"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="makeinfo"> +<meta name="viewport" content="width=device-width,initial-scale=1"> + +<link href="index.html" rel="start" title="Top"> +<link href="Request-Index.html" rel="index" title="Request Index"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="Introduction.html" rel="up" title="Introduction"> +<link href="Output-Device-Intro.html" rel="next" title="Output Device Intro"> +<link href="Macro-Package-Intro.html" rel="prev" title="Macro Package Intro"> + + +</head> + +<body lang="en"> +<div class="section-level-extent" id="Preprocessor-Intro"> +<div class="nav-panel"> +<p> +Next: <a href="Output-Device-Intro.html" accesskey="n" rel="next">Output Devices</a>, Previous: <a href="Macro-Package-Intro.html" accesskey="p" rel="prev">Macro Packages</a>, Up: <a href="Introduction.html" accesskey="u" rel="up">Introduction</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Request-Index.html" title="Index" rel="index">Index</a>]</p> +</div> +<hr> +<h3 class="section" id="Preprocessors">1.5 Preprocessors</h3> +<a class="index-entry-id" id="index-preprocessors"></a> + +<p>An alternative approach to complexity management, particularly when +constructing tables, setting mathematics, or drawing diagrams, lies in +preprocessing. A <em class="dfn">preprocessor</em> employs a domian-specific language +to ease the generation of tables, equations, and so forth in terms that +are convenient for human entry. Each preprocessor reads a document and +translates the parts of it that apply to it into GNU <code class="code">troff</code> input. +Command-line options to <code class="command">groff</code> tell it which preprocessors to +use. +</p> +<p><code class="code">groff</code> provides preprocessors for laying out tables +(<code class="command">gtbl</code>), typesetting equations (<code class="command">geqn</code>), drawing +diagrams (<code class="command">gpic</code> and <code class="command">ggrn</code>), inserting bibliographic +references (<code class="command">grefer</code>), and drawing chemical structures +(<code class="command">gchem</code>). An associated program that is useful when dealing +with preprocessors is <code class="command">gsoelim</code>.<a class="footnote" id="DOCF1" href="groff.html_fot.html#FOOT1"><sup>1</sup></a> +</p> +<p><code class="code">groff</code> also supports <code class="code">grap</code>, a preprocessor for drawing +graphs. A free implementation of it can be obtained separately. +</p> +<p>Unique to <code class="code">groff</code> is the <code class="code">preconv</code> preprocessor that enables +<code class="code">groff</code> to handle documents in a variety of input encodings. +</p> +<p>Other preprocessors exist, but no free implementations +are known. An example is <code class="command">ideal</code>, which draws diagrams using a +mathematical constraint language. +</p> + + +</div> + + + +</body> +</html> |