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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.
#
"""
This module provides document parsing and transformation utilities for
both SGML and XML.
"""
import os, dom, transforms, parsers, sys
import xml.sax, types
from cStringIO import StringIO
def transform(node, *args):
result = node
for t in args:
if isinstance(t, types.ClassType):
t = t()
result = result.dispatch(t)
return result
def sgml_parse(source):
if isinstance(source, basestring):
source = StringIO(source)
fname = "<string>"
elif hasattr(source, "name"):
fname = source.name
p = parsers.SGMLParser()
num = 1
for line in source:
p.feed(line)
p.parser.line(fname, num, None)
num += 1
p.close()
return p.parser.tree
def xml_parse(filename):
if sys.version_info[0:2] == (2,3):
# XXX: this is for older versions of python
source = "file://%s" % os.path.abspath(filename)
else:
source = filename
p = parsers.XMLParser()
xml.sax.parse(source, p)
return p.parser.tree
def sexp(node):
s = transforms.Sexp()
node.dispatch(s)
return s.out
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