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Parser API
==========
+`The docutils documentation describes`__ parsers as follows:
+
+ The Parser analyzes the input document and creates a node tree
+ representation.
+
+__ http://docutils.sourceforge.net/docs/dev/hacking.html#parsing-the-document
+
+In Sphinx, the parser modules works as same as docutils. The parsers are
+registered to Sphinx by extensions using Application APIs;
+:meth:`Sphinx.add_source_suffix()` and :meth:`Sphinx.add_source_parsers()`.
+
+The *source suffix* is a mapping from file suffix to file type. For example,
+``.rst`` file is mapped to ``'restructuredtext'`` type. Sphinx uses the
+file type to looking for parsers from registered list. On searching,
+Sphinx refers to the ``Parser.supported`` attribute and picks up a parser
+which contains the file type in the attribute.
+
+The users can override the source suffix mappings using
+:confval:`source_suffix` like following::
+
+ # a mapping from file suffix to file types
+ source_suffix = {
+ '.rst': 'restructuredtext',
+ '.md': 'markdown',
+ }
+
+You should indicate file types your parser supports. This will allow users
+to configure their settings appropriately.
+
.. module:: sphinx.parsers
.. autoclass:: Parser