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Previous: <a href="Heading-Choice.html" accesskey="p" rel="prev">Heading Choice</a>, Up: <a href="Headings.html" accesskey="u" rel="up">Headings</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>
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<hr>
<span id="How-to-Make-Your-Own-Headings"></span><h3 class="section">E.4 How to Make Your Own Headings</h3>
<p>You can use the standard headings provided with Texinfo or specify
your own. By default, Texinfo has no footers, so if you specify them,
the available page size for the main text will be slightly reduced.
</p>
<p>Texinfo provides six commands for specifying headings and
footings:
</p><ul>
<li> <code>@everyheading</code> and <code>@everyfooting</code> generate page headers and
footers that are the same for both even- and odd-numbered pages.
</li><li> <code>@evenheading</code> and <code>@evenfooting</code> command generate headers
and footers for even-numbered (left-hand) pages.
</li><li> <code>@oddheading</code> and <code>@oddfooting</code> generate headers and footers
for odd-numbered (right-hand) pages.
</li></ul>
<p>Write custom heading specifications in the Texinfo file immediately
after the <code>@end titlepage</code> command. You must cancel the
predefined heading commands with the <code>@headings off</code> command
before defining your own specifications.
</p>
<p>Here is how to tell TeX to place the chapter name at the left, the
page number in the center, and the date at the right of every header
for both even- and odd-numbered pages:
</p>
<div class="example">
<pre class="example">@headings off
@everyheading @thischapter @| @thispage @| @today{}
</pre></div>
<p>You need to divide the left part from the central part and the central
part from the right part by inserting ‘<samp>@|</samp>’ between parts.
Otherwise, the specification command will not be able to tell where
the text for one part ends and the next part begins.
</p>
<p>Each part can contain text or @-commands. The text is printed as if
the part were within an ordinary paragraph in the body of the page.
The @-commands replace themselves with the page number, date, chapter
name, or whatever.
</p>
<p>Here are the six heading and footing commands:
</p>
<dl compact="compact">
<dt><code>@everyheading <var>left</var> @| <var>center</var> @| <var>right</var></code></dt>
<dt><code>@everyfooting <var>left</var> @| <var>center</var> @| <var>right</var></code></dt>
<dd><span id="index-everyheading"></span>
<span id="index-everyfooting"></span>
<p>The ‘every’ commands specify the format for both even- and odd-numbered
pages. These commands are for documents that are printed on one side
of each sheet of paper, or for documents in which you want symmetrical
headers or footers.
</p>
</dd>
<dt><code>@evenheading <var>left</var> @| <var>center</var> @| <var>right</var></code></dt>
<dt><code>@oddheading <var>left</var> @| <var>center</var> @| <var>right</var></code></dt>
<dt><code>@evenfooting <var>left</var> @| <var>center</var> @| <var>right</var></code></dt>
<dt><code>@oddfooting <var>left</var> @| <var>center</var> @| <var>right</var></code></dt>
<dd><span id="index-evenheading"></span>
<span id="index-evenfooting"></span>
<span id="index-oddheading"></span>
<span id="index-oddfooting"></span>
<p>The ‘even’ and ‘odd’ commands specify the format for even-numbered
pages and odd-numbered pages. These commands are for books and
manuals that are printed on both sides of each sheet of paper.
</p></dd>
</dl>
<p>Use the ‘<samp>@this…</samp>’ series of @-commands to
provide the names of chapters
and sections and the page number. You can use the
‘<samp>@this…</samp>’ commands in the left, center, or right portions
of headers and footers, or anywhere else in a Texinfo file so long as
they are between <code>@iftex</code> and <code>@end iftex</code> commands.
</p>
<p>Here are the ‘<samp>@this…</samp>’ commands:
</p>
<dl compact="compact">
<dt><code>@thispage</code></dt>
<dd><span id="index-thispage"></span>
<p>Expands to the current page number.
</p>
</dd>
<dt><code>@thissectionname</code></dt>
<dd><span id="index-thissectionname"></span>
<p>Expands to the name of the current section.
</p>
</dd>
<dt><code>@thissectionnum</code></dt>
<dd><span id="index-thissectionnum"></span>
<p>Expands to the number of the current section.
</p>
</dd>
<dt><code>@thissection</code></dt>
<dd><span id="index-thissection"></span>
<p>Expands to the number and name of the current section, in the format
‘Section 1: Title’.
</p>
</dd>
<dt><code>@thischaptername</code></dt>
<dd><span id="index-thischaptername"></span>
<p>Expands to the name of the current chapter.
</p>
</dd>
<dt><code>@thischapternum</code></dt>
<dd><span id="index-thischapternum"></span>
<p>Expands to the number of the current chapter, or letter of the current
appendix.
</p>
</dd>
<dt><code>@thischapter</code></dt>
<dd><span id="index-thischapter"></span>
<p>Expands to the number and name of the current
chapter, in the format ‘Chapter 1: Title’.
</p>
</dd>
<dt><code>@thistitle</code></dt>
<dd><span id="index-thistitle"></span>
<p>Expands to the name of the document, as specified by the
<code>@settitle</code> command.
</p>
</dd>
<dt><code>@thisfile</code></dt>
<dd><span id="index-thisfile"></span>
<p>For <code>@include</code> files only: expands to the name of the current
<code>@include</code> file. If the current Texinfo source file is not an
<code>@include</code> file, this command has no effect. This command does
<em>not</em> provide the name of the current Texinfo source file unless
it is an <code>@include</code> file. (See <a href="Include-Files.html">Include Files</a>, for more
information about <code>@include</code> files.)
</p></dd>
</dl>
<p>You can also use the <code>@today{}</code> command, which expands to the
current date, in ‘1 Jan 1900’ format.
<span id="index-today"></span>
</p>
<p>Other @-commands and text are printed in a header or footer just as
if they were in the body of a page. It is useful to incorporate text,
particularly when you are writing drafts:
</p>
<div class="example">
<pre class="example">@headings off
@everyheading @emph{Draft!} @| @thispage @| @thischapter
@everyfooting @| @| Version: 0.27: @today{}
</pre></div>
<p>Beware of overlong titles: they may overlap another part of the
header or footer and blot it out.
</p>
<p>If you have very short chapters and/or sections, several of them can
appear on a single page. You can specify which chapters and sections
you want <code>@thischapter</code>, <code>@thissection</code> and other such
macros to refer to on such pages as follows:
</p>
<dl compact="compact">
<dt><code>@everyheadingmarks <var>ref</var></code></dt>
<dt><code>@everyfootingmarks <var>ref</var></code></dt>
<dd><span id="index-everyheadingmarks"></span>
<span id="index-everyfootingmarks"></span>
<p>The <var>ref</var> argument can be either <code>top</code> (the <code>@this...</code>
commands will refer to the chapter/section at the top of a page) or
<code>bottom</code> (the commands will reflect the situation at the bottom
of a page). These ‘<samp>@every...</samp>’ commands specify what to do on
both even- and odd-numbered pages.
</p>
</dd>
<dt><code>@evenheadingmarks <var>ref</var></code></dt>
<dt><code>@oddheadingmarks <var>ref</var></code></dt>
<dt><code>@evenfootingmarks <var>ref</var></code></dt>
<dt><code>@oddfootingmarks <var>ref</var></code></dt>
<dd><span id="index-evenheadingmarks"></span>
<span id="index-oddheadingmarks"></span>
<span id="index-evenfootingmarks"></span>
<span id="index-oddfootingmarks"></span>
<p>These ‘<samp>@even...</samp>’ and ‘<samp>@odd...</samp>’ commands specify what to do
on only even- or odd-numbered pages, respectively. The <var>ref</var>
argument is the same as with the ‘<samp>@every...</samp>’ commands.
</p></dd>
</dl>
<p>Write these commands immediately after the <code>@...contents</code>
commands, or after the <code>@end titlepage</code> command if you don’t
have a table of contents or if it is printed at the end of your
manual.
</p>
<p>By default the <code>@this...</code> commands reflect the situation at the
bottom of a page both in headings and in footings.
</p>
<hr>
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<p>
Previous: <a href="Heading-Choice.html" accesskey="p" rel="prev">Heading Choice</a>, Up: <a href="Headings.html" accesskey="u" rel="up">Headings</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>
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