f93122d379
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@2716 fd906abe-77d9-0310-91a1-e0d9ade77398
105 lines
2.7 KiB
Python
105 lines
2.7 KiB
Python
#
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# Copyright (c) 2008 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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Basic (sample) implementations for links and link management
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$Id$
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"""
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import re
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from zope.interface import implements
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from cybertools.wiki.interfaces import ILink, ILinkFormat, ILinkManager
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class Link(object):
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implements(ILink)
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identifier = None
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manager = None
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formatName = None
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def __init__(self, source, target):
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self.source = source
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self.target = target
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class BaseLinkFormat(object):
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implements(ILinkFormat)
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manager = None
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name = 'base'
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internalFormat = '##%s##'
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internalRegexp = re.compile(r'##(.+)##(.+)##')
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def __init__(self, context):
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self.context = context
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def unmarshall(self, text):
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return self.externalRegexp.sub(self.processLink, text)
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def marshall(self, text):
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return text
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def display(self, text):
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return text
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def processLink(self, match):
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ref, label = match.group(1).split(' ', 1)
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link = Link(self.context, ref)
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link.original = match.group(0)
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link.label = label
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self.manager.register(link)
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return self.externalFormat % (self.internalFormat % link.identifier)
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class DoubleBracketLinkFormat(BaseLinkFormat):
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name = 'doublebracket'
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externalFormat = '[[%s]]'
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externalRegexp = re.compile(r'\[\[(.+)\]\]')
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class LinkManager(object):
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implements(ILinkManager)
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def __init__(self):
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self.links = {}
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def register(self, link):
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if link.identifier is None:
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self.generateIdentifier(link)
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if link.identifier not in self.links:
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self.links[link.identifier] = link
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link.manager = self
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def unregister(self, link):
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if link.identifier in self.links:
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del self.links[link.identifier]
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link.manager = None
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def generateIdentifier(self, link):
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identifier = '%07i' % (max(self.links.keys() or [0]) + 1)
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link.identifier = identifier
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return identifier
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