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doc/about/contribute/documentation/tmdoc-explain.en.tm

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<TeXmacs|1.0.7.14>
<style|tmdoc>
<\body>
<tmdoc-title|Explanations of macros, environment variables, and so on>
The main environment which is used for explanations of macros, environment
variables, <scheme> functions, <abbr|etc.> is inserted using the
<subsubmenu|Manual|Explain|Explanatory item> entry of the
<menu|Manual|Explain> and <icon|tm_explain.xpm> menus. The environment
comes with two arguments: the first argument consists of the concept or
concepts to be explained, and the second one contains the actual
explanation. A typical example would be the following:
<\explain>
<explain-macro|demo-tag|body>
<explain-macro|demo-tag|extras|body><explain-synopsis|short and long
versions of a demo tag>
<|explain>
The <markup|demo-tag> is used for demonstration purposes and decorates
the <src-arg|body><compound|src-var|> argument. An optional argument
<src-arg|extras> can be given with details on the way to decorate the
<src-arg|body>.
</explain>
In this example, we used <menu|Manual|Explain|TeXmacs macros> twice in
order to insert the macros to be described. We also used
<menu|Manual|Explain|Synopsis> in order to give a short description of the
tags (in grey). In a similar way, one may use
<menu|Manual|Explain|Environment variable> in order to describe an
environment variable. Another example is:
<\explain>
<scm|(foo-bar <scm-arg|K> <scm-arg|x>)>
<|explain>
The function <scm|foo-bar> computes the foo-bar transform of the operator
<scm|<scm-arg|K>> and applies it to <scm|<scm-arg|x>>.
</explain>
In this example, we notice that all <scheme> code was encapsulated into
<markup|scm> tags (see <menu|Insert|Program|Inline code|Scheme>) and
arguments were tagged using <markup|scm-arg>.
<tmdoc-copyright|1998--2011|Joris van der Hoeven>
<tmdoc-license|Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.1
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".>
</body>
<\initial>
<\collection>
<associate|language|english>
</collection>
</initial>