8e80217e59
Former-commit-id:a02aeb236c[formerly9f19e3f712] [formerly06a8b51d6d[formerly 64fa9254b946eae7e61bbc3f513b7c3696c4f54f]] Former-commit-id:06a8b51d6dFormer-commit-id:3360eb6c5f
85 lines
2.3 KiB
Python
85 lines
2.3 KiB
Python
#
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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#
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"""
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This module provides document parsing and transformation utilities for
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both SGML and XML.
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"""
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import os, dom, transforms, parsers, sys
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import xml.sax, types
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from xml.sax.handler import ErrorHandler
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from xml.sax.xmlreader import InputSource
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from cStringIO import StringIO
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def transform(node, *args):
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result = node
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for t in args:
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if isinstance(t, types.ClassType):
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t = t()
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result = result.dispatch(t)
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return result
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def sgml_parse(source):
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if isinstance(source, basestring):
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source = StringIO(source)
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fname = "<string>"
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elif hasattr(source, "name"):
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fname = source.name
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p = parsers.SGMLParser()
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num = 1
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for line in source:
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p.feed(line)
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p.parser.line(fname, num, None)
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num += 1
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p.close()
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return p.parser.tree
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class Resolver:
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def __init__(self, path):
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self.path = path
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def resolveEntity(self, publicId, systemId):
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for p in self.path:
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fname = os.path.join(p, systemId)
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if os.path.exists(fname):
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source = InputSource(systemId)
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source.setByteStream(open(fname))
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return source
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return InputSource(systemId)
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def xml_parse(filename, path=()):
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if sys.version_info[0:2] == (2,3):
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# XXX: this is for older versions of python
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source = "file://%s" % os.path.abspath(filename)
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else:
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source = filename
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h = parsers.XMLParser()
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p = xml.sax.make_parser()
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p.setContentHandler(h)
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p.setErrorHandler(ErrorHandler())
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p.setEntityResolver(Resolver(path))
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p.parse(source)
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return h.parser.tree
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def sexp(node):
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s = transforms.Sexp()
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node.dispatch(s)
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return s.out
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