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<title>6.11 Index-generating Markup
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<H2><A NAME=
"SECTION0007110000000000000000"></A><A NAME=
"indexing"></A>
6.11 Index-generating Markup
Effective index generation for technical documents can be very
difficult, especially for someone familiar with the topic but not
the creation of indexes. Much of the difficulty arises in the
area of terminology: including the terms an expert would use for a
concept is not sufficient. Coming up with the terms that a novice
would look up is fairly difficult for an author who, typically, is
an expert in the area she is writing on.
The truly difficult aspects of index generation are not areas with
which the documentation tools can help. However, ease
of producing the index once content decisions are made is within
the scope of the tools. Markup is provided which the processing
software is able to use to generate a variety of kinds of index
entry with minimal effort. Additionally, many of the environments
described in section
<A href=
"info-units.html#info-units">6.3</A>, ``Information Units,'' will
generate appropriate entries into the general and module indexes.
The following macro can be used to control the generation of index
data, and should be used in the document preamble:
<dt><b><tt class='macro'
>\makemodindex
</tt></b>
This should be used in the document preamble if a ``Module
Index'' is desired for a document containing reference material
on many modules. This causes a data file
<code>lib
<var>jobname
</var>.idx
</code> to be created from the
<tt class='macro'
>\declaremodule
</tt> macros. This file can be processed by the
<b class=
"program">makeindex
</b> program to generate a file which can be
<tt class='macro'
>\input
</tt> into the document at the desired location of the
There are a number of macros that are useful for adding index
entries for particular concepts, many of which are specific to
programming languages or even Python.
<dt><b><tt class='macro'
>\bifuncindex
</tt></b>
<tt>{
</tt><var>name
</var><tt>}
</tt></dt>
Add an index entry referring to a built-in function named
<var>name
</var>; parentheses should not be included after
<dt><b><tt class='macro'
>\exindex
</tt></b>
<tt>{
</tt><var>exception
</var><tt>}
</tt></dt>
Add a reference to an exception named
<var>exception
</var>. The
exception should be class-based.
<dt><b><tt class='macro'
>\kwindex
</tt></b>
<tt>{
</tt><var>keyword
</var><tt>}
</tt></dt>
Add a reference to a language keyword (not a keyword parameter
in a function or method call).
<dt><b><tt class='macro'
>\obindex
</tt></b>
<tt>{
</tt><var>object type
</var><tt>}
</tt></dt>
Add an index entry for a built-in object type.
<dt><b><tt class='macro'
>\opindex
</tt></b>
<tt>{
</tt><var>operator
</var><tt>}
</tt></dt>
Add a reference to an operator, such as
"<tt class="samp
">+</tt>".
<dt><b><tt class='macro'
>\refmodindex
</tt></b>
<tt>[
</tt><var>key
</var><tt>]
</tt><tt>{
</tt><var>module
</var><tt>}
</tt></dt>
Add an index entry for module
<var>module
</var>; if
<var>module
</var> contains an underscore, the optional parameter
<var>key
</var> should
be provided as the same string with underscores removed. An
index entry ``
<var>module
</var> (module)'' will be generated. This
is intended for use with non-standard modules implemented in
<dt><b><tt class='macro'
>\refexmodindex
</tt></b>
<tt>[
</tt><var>key
</var><tt>]
</tt><tt>{
</tt><var>module
</var><tt>}
</tt></dt>
As for
<tt class='macro'
>\refmodindex
</tt>, but the index entry will be
``
<var>module
</var> (extension module).'' This is intended for use
with non-standard modules not implemented in Python.
<dt><b><tt class='macro'
>\refbimodindex
</tt></b>
<tt>[
</tt><var>key
</var><tt>]
</tt><tt>{
</tt><var>module
</var><tt>}
</tt></dt>
As for
<tt class='macro'
>\refmodindex
</tt>, but the index entry will be
``
<var>module
</var> (built-in module).'' This is intended for use
with standard modules not implemented in Python.
<dt><b><tt class='macro'
>\refstmodindex
</tt></b>
<tt>[
</tt><var>key
</var><tt>]
</tt><tt>{
</tt><var>module
</var><tt>}
</tt></dt>
As for
<tt class='macro'
>\refmodindex
</tt>, but the index entry will be
``
<var>module
</var> (standard module).'' This is intended for use
with standard modules implemented in Python.
<dt><b><tt class='macro'
>\stindex
</tt></b>
<tt>{
</tt><var>statement
</var><tt>}
</tt></dt>
Add an index entry for a statement type, such as
<tt class=
"keyword">print
</tt> or
<tt class=
"keyword">try
</tt>/
<tt class=
"keyword">finally
</tt>.
XXX Need better examples of difference from
<tt class='macro'
>\kwindex
</tt>.
Additional macros are provided which are useful for conveniently
creating general index entries which should appear at many places
in the index by rotating a list of words. These are simple macros
that simply use
<tt class='macro'
>\index
</tt> to build some number of index
entries. Index entries build using these macros contain both
primary and secondary text.
<dt><b><tt class='macro'
>\indexii
</tt></b>
<tt>{
</tt><var>word1
</var><tt>}
</tt><tt>{
</tt><var>word2
</var><tt>}
</tt></dt>
Build two index entries. This is exactly equivalent to using
<code>\index{
<var>word1
</var>!
<var>word2
</var>}
</code> and
<code>\index{
<var>word2
</var>!
<var>word1
</var>}
</code>.
<dt><b><tt class='macro'
>\indexiii
</tt></b>
<tt>{
</tt><var>word1
</var><tt>}
</tt><tt>{
</tt><var>word2
</var><tt>}
</tt><tt>{
</tt><var>word3
</var><tt>}
</tt></dt>
Build three index entries. This is exactly equivalent to using
<code>\index{
<var>word1
</var>!
<var>word2
</var> <var>word3
</var>}
</code>,
<code>\index{
<var>word2
</var>!
<var>word3
</var>,
<var>word1
</var>}
</code>, and
<code>\index{
<var>word3
</var>!
<var>word1
</var> <var>word2
</var>}
</code>.
<dt><b><tt class='macro'
>\indexiv
</tt></b>
<tt>{
</tt><var>word1
</var><tt>}
</tt><tt>{
</tt><var>word2
</var><tt>}
</tt><tt>{
</tt><var>word3
</var><tt>}
</tt><tt>{
</tt><var>word4
</var><tt>}
</tt></dt>
Build four index entries. This is exactly equivalent to using
<code>\index{
<var>word1
</var>!
<var>word2
</var> <var>word3
</var> <var>word4
</var>}
</code>,
<code>\index{
<var>word2
</var>!
<var>word3
</var> <var>word4
</var>,
<var>word1
</var>}
</code>,
<code>\index{
<var>word3
</var>!
<var>word4
</var>,
<var>word1
</var> <var>word2
</var>}
</code>,
<code>\index{
<var>word4
</var>!
<var>word1
</var> <var>word2
</var> <var>word3
</var>}
</code>.
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<span class=
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2005.
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