# $Id: doctree.py 4564 2006-05-21 20:44:42Z wiemann $
# Author: Martin Blais <blais@furius.ca>
# Copyright: This module has been placed in the public domain.
"""Reader for existing document trees."""
from docutils import readers, utils, transforms
class Reader(readers.ReReader):
"""
Adapt the Reader API for an existing document tree.
The existing document tree must be passed as the ``source`` parameter to
the `docutils.core.Publisher` initializer, wrapped in a
`docutils.io.DocTreeInput` object::
pub = docutils.core.Publisher(
..., source=docutils.io.DocTreeInput(document), ...)
The original document settings are overridden; if you want to use the
settings of the original document, pass ``settings=document.settings`` to
the Publisher call above.
"""
supported = ('doctree',)
config_section = 'doctree reader'
config_section_dependencies = ('readers',)
def parse(self):
"""
No parsing to do; refurbish the document tree instead.
Overrides the inherited method.
"""
self.document = self.input
# Create fresh Transformer object, to be populated from Writer
# component.
self.document.transformer = transforms.Transformer(self.document)
# Replace existing settings object with new one.
self.document.settings = self.settings
# Create fresh Reporter object because it is dependent on
# (new) settings.
self.document.reporter = utils.new_reporter(
self.document.get('source', ''), self.document.settings)