/usr/share/pyshared/mllib/parsers.py is in python-qpid 0.22+dfsg-1.
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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
"""
Parsers for SGML and XML to dom.
"""
import sgmllib, xml.sax.handler
from dom import *
class Parser:
def __init__(self):
self.tree = Tree()
self.node = self.tree
self.nodes = []
def line(self, id, lineno, colno):
while self.nodes:
n = self.nodes.pop()
n._line(id, lineno, colno)
def add(self, node):
self.node.add(node)
self.nodes.append(node)
def start(self, name, attrs):
tag = Tag(name, *attrs)
self.add(tag)
self.node = tag
def end(self, name):
self.balance(name)
self.node = self.node.parent
def data(self, data):
children = self.node.children
if children and isinstance(children[-1], Data):
children[-1].data += data
else:
self.add(Data(data))
def comment(self, comment):
self.add(Comment(comment))
def entity(self, ref):
self.add(Entity(ref))
def character(self, ref):
self.add(Character(ref))
def balance(self, name = None):
while self.node != self.tree and name != self.node.name:
self.node.parent.extend(self.node.children)
del self.node.children[:]
self.node.singleton = True
self.node = self.node.parent
class SGMLParser(sgmllib.SGMLParser):
def __init__(self, entitydefs = None):
sgmllib.SGMLParser.__init__(self)
if entitydefs == None:
self.entitydefs = {}
else:
self.entitydefs = entitydefs
self.parser = Parser()
def unknown_starttag(self, name, attrs):
self.parser.start(name, attrs)
def handle_data(self, data):
self.parser.data(data)
def handle_comment(self, comment):
self.parser.comment(comment)
def unknown_entityref(self, ref):
self.parser.entity(ref)
def unknown_charref(self, ref):
self.parser.character(ref)
def unknown_endtag(self, name):
self.parser.end(name)
def close(self):
sgmllib.SGMLParser.close(self)
self.parser.balance()
assert self.parser.node == self.parser.tree
class XMLParser(xml.sax.handler.ContentHandler):
def __init__(self):
self.parser = Parser()
self.locator = None
def line(self):
if self.locator != None:
self.parser.line(self.locator.getSystemId(),
self.locator.getLineNumber(),
self.locator.getColumnNumber())
def setDocumentLocator(self, locator):
self.locator = locator
def startElement(self, name, attrs):
self.parser.start(name, attrs.items())
self.line()
def endElement(self, name):
self.parser.end(name)
self.line()
def characters(self, content):
self.parser.data(content)
self.line()
def skippedEntity(self, name):
self.parser.entity(name)
self.line()
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