2be22a9dcb
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@4081 fd906abe-77d9-0310-91a1-e0d9ade77398
108 lines
3.4 KiB
Python
108 lines
3.4 KiB
Python
#
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# Copyright (c) 2010 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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A writer implementation based on the docutils HTML writer.
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$Id$
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"""
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from docutils.core import publish_from_doctree
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from docutils import nodes
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from docutils.writers.html4css1 import HTMLTranslator, Writer as HTMLWriter
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from zope import component
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from zope.interface import implements
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from cybertools.wiki.interfaces import INodeProcessor, IWriter
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class Writer(object):
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implements(IWriter)
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def __init__(self):
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self.writer = HTMLWriter()
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self.writer.translator_class = BodyTranslator
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def write(self, tree):
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return publish_from_doctree(tree, writer=self.writer,
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settings_overrides={'embed_stylesheet': False})
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class BodyTranslator(HTMLTranslator):
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def astext(self):
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return u''.join(self.body_pre_docinfo + self.docinfo + self.body)
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def visit_image(self, node):
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# copied from docutils.writers.html4css1
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atts = {}
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atts['src'] = node['uri']
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# TODO: provide processing of other attributes
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suffix = '\n'
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self.context.append('')
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htmlNode = HTMLImageNode(self.document, node, atts)
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self.processNode(htmlNode)
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self.body.append(self.emptytag(node, 'img', suffix, **atts))
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def visit_reference(self, node):
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# copied from docutils.writers.html4css1
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if node.has_key('refuri'):
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href = node['refuri']
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if (self.settings.cloak_email_addresses
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and href.startswith('mailto:')):
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href = self.cloak_mailto(href)
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self.in_mailto = 1
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else:
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assert node.has_key('refid'), \
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'References must have "refuri" or "refid" attribute.'
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href = '#' + node['refid']
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atts = {'href': href, 'class': 'reference'}
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if not isinstance(node.parent, nodes.TextElement):
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assert len(node) == 1 and isinstance(node[0], nodes.image)
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atts['class'] += ' image-reference'
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# wiki processing
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htmlNode = HTMLReferenceNode(self.document, node, atts)
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self.processNode(htmlNode)
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self.body.append(self.starttag(node, 'a', '', **atts))
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def processNode(self, htmlNode):
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processorNames = self.document.context.getConfig('nodeProcessors')
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procNames = processorNames.get(htmlNode.node.tagname, [])
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for n in procNames:
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proc = component.queryAdapter(htmlNode, INodeProcessor, name=n)
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if proc is not None:
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proc.process()
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class HTMLNode(object):
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def __init__(self, document, node, atts):
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self.document = document
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self.node = node
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self.atts = atts
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class HTMLReferenceNode(HTMLNode):
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pass
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class HTMLImageNode(HTMLNode):
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pass
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