aa43e289f8
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@3150 fd906abe-77d9-0310-91a1-e0d9ade77398
73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
#
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# Copyright (c) 2009 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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Tree processor implementation
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$Id$
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"""
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from zope.interface import implements
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from zope.component import adapts
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from zope import component
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from cybertools.wiki.interfaces import ITreeProcessor, INodeProcessor
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from cybertools.wiki.interfaces import IWikiPage
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class TreeProcessor(object):
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""" The standard tree processor walking the tree and processing
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the tree's nodes.
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"""
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implements(ITreeProcessor)
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adapts(IWikiPage)
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tree = None
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visitor = None
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def __init__(self, context):
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self.context = context
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def process(self):
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self.visitor = visitor = Visitor(self)
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self.tree.walk(visitor)
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class Visitor(object):
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def __init__(self, context):
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self.context = context # the tree processor
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self.document = context.tree # needed internally
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self.processors = {} # cache
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self.processorNames = self.context.context.getConfig('nodeProcessors')
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def dispatch_visit(self, node):
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#print 'visiting', node.tagname
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tag = node.tagname
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procs = self.processors.get(tag)
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if procs is None:
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procs = self.processors[tag] = []
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procNames = self.processorNames.get(tag, [])
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for n in procNames:
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proc = component.queryAdapter(node, INodeProcessor, name=n)
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if proc is not None:
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proc.parent = self.context
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procs.append(proc)
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for p in procs:
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p.process()
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