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Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta1-RC2/modules/implementation-python-runtime/src/main/resources/xmlutil.py | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta1-RC2/modules/implementation-python-runtime/src/main/resources/xmlutil.py b/sca-java-2.x/tags/2.0-Beta1-RC2/modules/implementation-python-runtime/src/main/resources/xmlutil.py new file mode 100644 index 0000000000..a1bc04629a --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta1-RC2/modules/implementation-python-runtime/src/main/resources/xmlutil.py @@ -0,0 +1,114 @@ +# 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. + +# XML handling functions + +from StringIO import StringIO +from xml.parsers import expat +import xml.etree.ElementTree as et +from util import * +from elemutil import * + +# Read a list of XML attributes +def readAttributes(a): + if a == (): + return a + return cons((attribute, "'" + car(car(a)), cadr(car(a))), readAttributes(cdr(a))) + +# Read an XML element +def readElement(e): + l = (element, "'" + e.tag) + readAttributes(tuple(e.items())) + readElements(tuple(e.getchildren())) + if e.text == None: + return l + return l + (e.text,) + +# Read a list of XML elements +def readElements(l): + if l == (): + return l + return cons(readElement(car(l)), readElements(cdr(l))) + +# Parse a list of strings representing an XML document +class NamespaceParser(et.XMLTreeBuilder): + def __init__(self): + et.XMLTreeBuilder.__init__(self) + self._parser = parser = expat.ParserCreate(None) + parser.DefaultHandlerExpand = self._default + parser.StartElementHandler = self._start + parser.EndElementHandler = self._end + parser.CharacterDataHandler = self._data + try: + parser.buffer_text = 1 + except AttributeError: + pass + try: + parser.ordered_attributes = 1 + parser.specified_attributes = 1 + parser.StartElementHandler = self._start_list + except AttributeError: + pass + +def parseXML(l): + s = StringIO() + writeStrings(l, s) + parser = NamespaceParser() + parser.feed(s.getvalue()) + return parser.close() + +# Read a list of values from a list of strings representing an XML document +def readXML(l): + e = parseXML(l) + return (readElement(e),) + +# Write a list of XML element and attribute tokens +def expandElementValues(n, l): + if isNil(l): + return l + return cons(cons(element, cons(n, car(l))), expandElementValues(n, cdr(l))) + +def writeList(l, xml): + if isNil(l): + return xml + token = car(l) + if isTaggedList(token, attribute): + xml.attrib[attributeName(token)[1:]] = str(attributeValue(token)) + elif isTaggedList(token, element): + if elementHasValue(token): + v = elementValue(token) + if isList(v): + e = expandElementValues(elementName(token), v) + writeList(e, xml) + else: + child = et.Element(elementName(token)[1:]) + writeList(elementChildren(token), child) + xml.append(child) + else: + child = et.Element(elementName(token)[1:]) + writeList(elementChildren(token), child) + xml.append(child) + else: + xml.text = str(token) + writeList(cdr(l), xml) + return xml + +# Convert a list of values to a list of strings representing an XML document +def writeXML(l, xmlTag): + e = writeList(l, []) + if not xmlTag: + return (et.tostring(car(e)),) + return (et.tostring(car(e), "UTF-8") + "\n",) + |