auto_index/doc/html/boost_autoindex/workflow.html

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<title>Understanding The AutoIndex Workflow</title>
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="boost_autoindex.workflow"></a><a class="link" href="workflow.html" title="Understanding The AutoIndex Workflow">Understanding The AutoIndex Workflow</a>
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<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
Load the script file (usually index.idx) and process it one line at a time,
producing one or more index term per (non-comment) line.
</li>
<li class="listitem">
Reading all lines builds a list of <span class="emphasis"><em>terms to index</em></span>.
Some of those may be terms defined (by you) directly in the script file,
others may be terms found by scanning C++ header and source files that
were specified by the <span class="emphasis"><em>!scan-path</em></span> directive.
</li>
<li class="listitem">
Once the complete list of <span class="emphasis"><em>terms to index</em></span> is complete,
it loads the Docbook XML file. (If this comes from Quickbook/Doxygen/Boostbook/Docbook
then this is the complete documentation after conversion to Docbook format).
</li>
<li class="listitem">
AutoIndex builds an internal <a href="http://en.wikipedia.org/wiki/Document_Object_Model" target="_top">Document
Object Model (DOM)</a> of the Docbook XML. This internal representation
then gets scanned for occurrences of the <span class="emphasis"><em>terms to index</em></span>.
This scanning works at the XML paragraph level (or equivalent sibling such
as a table or code block) - so all the XML encoding within a paragraph
gets flattened to plain text.<br> This flattening means the regular expressions
used to search for <span class="emphasis"><em>terms to index</em></span> can find anything
that is completely contained within a paragraph (or code block etc).
</li>
<li class="listitem">
For each term found then an <span class="emphasis"><em>indexterm</em></span> Docbook element
is inserted into the <a href="http://en.wikipedia.org/wiki/Document_Object_Model" target="_top">Document
Object Model (DOM)</a> (provided internal index generation is off),
</li>
<li class="listitem">
Also the AutoIndex's internal index representation gets updated.
</li>
<li class="listitem">
Once the whole XML document has been indexed, then, if AutoIndex has been
instructed to generate the index itself, it creates the necessary XML and
inserts this into the <a href="http://en.wikipedia.org/wiki/Document_Object_Model" target="_top">Document
Object Model (DOM)</a>.
</li>
<li class="listitem">
Finally the whole <a href="http://en.wikipedia.org/wiki/Document_Object_Model" target="_top">Document
Object Model (DOM)</a> is written out as a new Docbook XML file, and
normal processing of this continues via the XSL stylesheets (with xsltproc)
to actually build the final human-readable docs.
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<td align="right"><div class="copyright-footer">Copyright &#169; 2008, 2011 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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