# -*- test-case-name: twisted.test.test_xml -*-
#
# Twisted, the Framework of Your Internet
# Copyright (C) 2001-2002 Matthew W. Lefkowitz
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of version 2.1 of the GNU Lesser General Public
# License as published by the Free Software Foundation.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
"""Micro Document Object Model: a partial DOM implementation with SUX.
This is an implementation of what we consider to be the useful subset of the
DOM. The chief advantage of this library is that, not being burdened with
standards compliance, it can remain very stable between versions. We can also
implement utility 'pythonic' ways to access and mutate the XML tree.
Since this has not subjected to a serious trial by fire, it is not recommended
to use this outside of Twisted applications. However, it seems to work just
fine for the documentation generator, which parses a fairly representative
sample of XML.
Microdom mainly focuses on working with HTML and XHTML.
"""
from __future__ import nested_scopes
# System Imports
import copy, re
from cStringIO import StringIO
# Twisted Imports
from twisted.protocols.sux import XMLParser, ParseError
from twisted.python import reflect
from twisted.python.util import InsensitiveDict
# create NodeList class
from types import ListType as NodeList
from types import StringTypes, UnicodeType
import sys
dictsAreNotSequences=0
try:
'x' in {}
except TypeError:
dictsAreNotSequences = 1
def getElementsByTagName(iNode, name):
matches = []
matches_append = matches.append # faster lookup. don't do this at home
slice=[iNode]
while len(slice)>0:
c = slice.pop(0)
if c.nodeName == name:
matches_append(c)
slice[:0] = c.childNodes
return matches
def getElementsByTagNameNoCase(iNode, name):
name = name.lower()
matches = []
matches_append = matches.append
slice=[iNode]
while len(slice)>0:
c = slice.pop(0)
if c.nodeName.lower() == name:
matches_append(c)
slice[:0] = c.childNodes
return matches
# order is important
HTML_ESCAPE_CHARS = (('&', '&'),
('<', '<'),
('>', '>'),
('"', '"'))
XML_ESCAPE_CHARS = HTML_ESCAPE_CHARS + (("'", '''),)
def unescape(text, chars=HTML_ESCAPE_CHARS):
"Perform the exact opposite of 'escape'."
for s, h in chars:
text = text.replace(h, s)
return text
def escape(text, chars=HTML_ESCAPE_CHARS):
"Escape a few XML special chars with XML entities."
for s, h in chars:
text = text.replace(s, h)
return text
class MismatchedTags(Exception):
def __init__(self, filename, expect, got, endLine, endCol, begLine, begCol):
(self.filename, self.expect, self.got, self.begLine, self.begCol, self.endLine,
self.endCol) = filename, expect, got, begLine, begCol, endLine, endCol
def __str__(self):
return "expected </%s>, got </%s> line: %s col: %s, began line: %s col: %s" % (self.expect, self.got, self.endLine, self.endCol, self.begLine, self.begCol)
class Node(object):
nodeName = "Node"
def __init__(self, parentNode=None):
self.parentNode = parentNode
self.childNodes = []
def __hash__(self):
return id(self)
def isEqualToNode(self, n):
for a, b in zip(self.childNodes, n.childNodes):
if not a.isEqualToNode(b):
return 0
return 1
def writexml(self, stream, indent='', addindent='', newl='', strip=0, nsprefixes={}, namespace=''):
raise NotImplementedError()
def toxml(self, indent='', addindent='', newl='', strip=0, nsprefixes={}, namespace=''):
s = StringIO()
self.writexml(s, indent, addindent, newl, strip, nsprefixes, namespace)
rv = s.getvalue()
return rv
def writeprettyxml(self, stream, indent='', addindent=' ', newl='\n', strip=0):
return self.writexml(stream, indent, addindent, newl, strip)
def toprettyxml(self, indent='', addindent=' ', newl='\n', strip=0):
return self.toxml(indent, addindent, newl, strip)
def cloneNode(self, deep=0, parent=None):
raise NotImplementedError()
def hasChildNodes(self):
if self.childNodes:
return 1
else:
return 0
def appendChild(self, child):
assert isinstance(child, Node)
self.childNodes.append(child)
child.parentNode = self
def insertBefore(self, new, ref):
i = self.childNodes.index(ref)
new.parentNode = self
self.childNodes.insert(i, new)
return new
def removeChild(self, child):
if child in self.childNodes:
self.childNodes.remove(child)
child.parentNode = None
return child
def replaceChild(self, newChild, oldChild):
assert isinstance(newChild, Node)
#if newChild.parentNode:
# newChild.parentNode.removeChild(newChild)
assert oldChild.parentNode is self, 'oldChild (%s): oldChild.parentNode (%s) != self (%s)' % (oldChild, oldChild.parentNode, self)
self.childNodes[self.childNodes.index(oldChild)] = newChild
oldChild.parentNode = None
newChild.parentNode = self
def lastChild(self):
return self.childNodes[-1]
def firstChild(self):
if len(self.childNodes):
return self.childNodes[0]
return None
#def get_ownerDocument(self):
# """This doesn't really get the owner document; microdom nodes
# don't even have one necessarily. This gets the root node,
# which is usually what you really meant.
# *NOT DOM COMPLIANT.*
# """
# node=self
# while (node.parentNode): node=node.parentNode
# return node
#ownerDocument=node.get_ownerDocument()
# leaving commented for discussion; see also domhelpers.getParents(node)
class Document(Node):
def __init__(self, documentElement=None):
Node.__init__(self)
if documentElement:
self.appendChild(documentElement)
def cloneNode(self, deep=0, parent=None):
d = Document()
d.doctype = self.doctype
if deep:
newEl = self.documentElement.cloneNode(1, self)
else:
newEl = self.documentElement
d.appendChild(newEl)
return d
doctype = None
def isEqualToDocument(self, n):
return (self.doctype == n.doctype) and self.isEqualToNode(n)
def get_documentElement(self):
return self.childNodes[0]
documentElement=property(get_documentElement)
def appendChild(self, c):
assert not self.childNodes, "Only one element per document."
Node.appendChild(self, c)
def writexml(self, stream, indent='', addindent='', newl='', strip=0, nsprefixes={}, namespace=''):
stream.write('<?xml version="1.0"?>' + newl)
if self.doctype:
stream.write("<!DOCTYPE "+self.doctype+">" + newl)
self.documentElement.writexml(stream, indent, addindent, newl, strip, nsprefixes, namespace)
# of dubious utility (?)
def createElement(self, name, **kw):
return Element(name, **kw)
def createTextNode(self, text):
return Text(text)
def createComment(self, text):
return Comment(text)
def getElementsByTagName(self, name):
if self.documentElement.caseInsensitive:
return getElementsByTagNameNoCase(self, name)
return getElementsByTagName(self, name)
def getElementById(self, id):
childNodes = self.childNodes[:]
while childNodes:
node = childNodes.pop(0)
if node.childNodes:
childNodes.extend(node.childNodes)
if hasattr(node, 'getAttribute') and node.getAttribute("id") == id:
return node
class EntityReference(Node):
def __init__(self, eref, parentNode=None):
Node.__init__(self, parentNode)
self.eref = eref
self.nodeValue = self.data = "&" + eref + ";"
def isEqualToEntityReference(self, n):
if not isinstance(n, EntityReference):
return 0
return (self.eref == n.eref) and (self.nodeValue == n.nodeValue)
def writexml(self, stream, indent='', addindent='', newl='', strip=0, nsprefixes={}, namespace=''):
stream.write(self.nodeValue)
def cloneNode(self, deep=0, parent=None):
return EntityReference(self.eref, parent)
class CharacterData(Node):
def __init__(self, data, parentNode=None):
Node.__init__(self, parentNode)
self.value = self.data = self.nodeValue = data
def isEqualToCharacterData(self, n):
return self.value == n.value
class Comment(CharacterData):
"""A comment node."""
def writexml(self, stream, indent='', addindent='', newl='', strip=0, nsprefixes={}, namespace=''):
val=self.data
if isinstance(val, UnicodeType):
val=val.encode('utf8')
stream.write("<!--%s-->" % val)
def cloneNode(self, deep=0, parent=None):
return Comment(self.nodeValue, parent)
class Text(CharacterData):
def __init__(self, data, parentNode=None, raw=0):
CharacterData.__init__(self, data, parentNode)
self.raw = raw
def cloneNode(self, deep=0, parent=None):
return Text(self.nodeValue, parent, self.raw)
def writexml(self, stream, indent='', addindent='', newl='', strip=0, nsprefixes={}, namespace=''):
if self.raw:
val = self.nodeValue
if not isinstance(val, StringTypes):
val = str(self.nodeValue)
else:
v = self.nodeValue
if not isinstance(v, StringTypes):
v = str(v)
if strip:
v = ' '.join(v.split())
val = escape(v)
if isinstance(val, UnicodeType):
val = val.encode('utf8')
stream.write(val)
def __repr__(self):
return "Text(%s" % repr(self.nodeValue) + ')'
class CDATASection(CharacterData):
def cloneNode(self, deep=0, parent=None):
return CDATASection(self.nodeValue, parent)
def writexml(self, stream, indent='', addindent='', newl='', strip=0, nsprefixes={}, namespace=''):
stream.write("<![CDATA[")
stream.write(self.nodeValue)
stream.write("]]>")
_nextid = iter(xrange(0, sys.maxint)).next
def genprefix():
return 'p' + str(_nextid())
class _Attr(CharacterData):
"Support class for getAttributeNode."
def _selectDict(dct, caseInsensitive, preserveCase):
"""Return a copy of the dct with case sensitivity/preserving
turned on as appropriate.
"""
if caseInsensitive:
return InsensitiveDict(dct, preserve=preserveCase)
else:
return dct
class Element(Node):
preserveCase = 0
caseInsensitive = 1
nsprefixes = None
namespace = ''
def __init__(self, tagName, attributes=None, parentNode=None,
filename=None, markpos=None,
caseInsensitive=1, preserveCase=0,
namespace=''):
Node.__init__(self, parentNode)
self.preserveCase = preserveCase or not caseInsensitive
self.caseInsensitive = caseInsensitive
if not preserveCase:
tagName = tagName.lower()
if attributes is None:
self.attributes = {}
else:
self.attributes = attributes
for k, v in self.attributes.items():
self.attributes[k] = unescape(v)
self.attributes=_selectDict(self.attributes, caseInsensitive,
preserveCase)
self.endTagName = self.nodeName = self.tagName = tagName
self._filename = filename
self._markpos = markpos
self.namespace = namespace
def addPrefixes(self, pfxs):
if self.nsprefixes is None:
self.nsprefixes = pfxs
else:
self.nsprefixes.update(pfxs)
def endTag(self, endTagName):
if not self.preserveCase:
endTagName = endTagName.lower()
self.endTagName = endTagName
def isEqualToElement(self, n):
if self.caseInsensitive:
return (self.attributes == n.attributes) and (self.nodeName.lower() == n.nodeName.lower())
return (self.attributes == n.attributes) and (self.nodeName == n.nodeName)
def cloneNode(self, deep=0, parent=None):
clone = Element(
self.tagName, parentNode=parent, namespace=self.namespace,
preserveCase=self.preserveCase, caseInsensitive=self.caseInsensitive)
clone.attributes.update(self.attributes)
if deep:
clone.childNodes = [child.cloneNode(1, clone) for child in self.childNodes]
else:
clone.childNodes = []
return clone
def getElementsByTagName(self, name):
if self.caseInsensitive:
return getElementsByTagNameNoCase(self, name)
return getElementsByTagName(self, name)
def hasAttributes(self):
return 1
def getAttribute(self, name, default=None):
return self.attributes.get(name, default)
def getAttributeNS(self, ns, name, default=None):
nsk = (ns, name)
if self.attributes.has_key(nsk):
return self.attributes[nsk]
if ns == self.namespace:
return self.attributes.get(name, default)
return default
def getAttributeNode(self, name):
return _Attr(self.getAttribute(name), self)
def setAttribute(self, name, attr):
self.attributes[name] = attr
def removeAttribute(self, name):
if name in self.attributes:
del self.attributes[name]
def removeAttribute_has_key(self, name):
if self.attributes.has_key(name):
del self.attributes[name]
def hasAttribute(self, name):
return name in self.attributes
def hasAttribute_has_key(self, name):
return self.attributes.has_key(name)
if dictsAreNotSequences:
hasAttribute = hasAttribute_has_key
removeAttribute = removeAttribute_has_key
def writexml(self, stream, indent='', addindent='', newl='', strip=0, nsprefixes={}, namespace=''):
# write beginning
ALLOWSINGLETON = ('img', 'br', 'hr', 'base', 'meta', 'link', 'param',
'area', 'input', 'col', 'basefont', 'isindex',
'frame')
BLOCKELEMENTS = ('html', 'head', 'body', 'noscript', 'ins', 'del',
'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'script',
'ul', 'ol', 'dl', 'pre', 'hr', 'blockquote',
'address', 'p', 'div', 'fieldset', 'table', 'tr',
'form', 'object', 'fieldset', 'applet', 'map')
FORMATNICELY = ('tr', 'ul', 'ol', 'head')
# this should never be necessary unless people start
# changing .tagName on the fly(?)
if not self.preserveCase:
self.endTagName = self.tagName
w = stream.write
if self.nsprefixes:
newprefixes = self.nsprefixes.copy()
for ns in nsprefixes.keys():
del newprefixes[ns]
else:
newprefixes = {}
begin = ['<']
if self.tagName in BLOCKELEMENTS:
begin = [newl, indent] + begin
bext = begin.extend
writeattr = lambda _atr, _val: bext((' ', _atr, '="', escape(_val), '"'))
if namespace != self.namespace and self.namespace:
if nsprefixes.has_key(self.namespace):
prefix = nsprefixes[self.namespace]
bext(prefix+':'+self.tagName)
else:
bext(self.tagName)
writeattr("xmlns", self.namespace)
else:
bext(self.tagName)
j = ''.join
for attr, val in self.attributes.iteritems():
if isinstance(attr, tuple):
ns, key = attr
if nsprefixes.has_key(ns):
prefix = nsprefixes[ns]
else:
prefix = genprefix()
newprefixes[ns] = prefix
assert val is not None
writeattr(prefix+':'+key,val)
else:
assert val is not None
writeattr(attr, val)
if newprefixes:
for ns, prefix in newprefixes.iteritems():
if prefix:
writeattr('xmlns:'+prefix, ns)
newprefixes.update(nsprefixes)
downprefixes = newprefixes
else:
downprefixes = nsprefixes
w(j(begin))
if self.childNodes:
w(">")
newindent = indent + addindent
for child in self.childNodes:
if self.tagName in BLOCKELEMENTS and \
self.tagName in FORMATNICELY:
w(j((newl, newindent)))
child.writexml(stream, newindent, addindent, newl, strip, downprefixes, self.namespace)
if self.tagName in BLOCKELEMENTS:
w(j((newl, indent)))
w(j(("</", self.endTagName, '>')))
elif self.tagName.lower() not in ALLOWSINGLETON:
w(j(('></', self.endTagName, '>')))
else:
w(" />")
def __repr__(self):
rep = "Element(%s" % repr(self.nodeName)
if self.attributes:
rep += ", attributes=%r" % (self.attributes,)
if self._filename:
rep += ", filename=%r" % (self._filename,)
if self._markpos:
rep += ", markpos=%r" % (self._markpos,)
return rep + ')'
def __str__(self):
rep = "<" + self.nodeName
if self._filename or self._markpos:
rep += " ("
if self._filename:
rep += repr(self._filename)
if self._markpos:
rep += " line %s column %s" % self._markpos
if self._filename or self._markpos:
rep += ")"
for item in self.attributes.items():
rep += " %s=%r" % item
if self.hasChildNodes():
rep += " >...</%s>" % self.nodeName
else:
rep += " />"
return rep
def _unescapeDict(d):
dd = {}
for k, v in d.items():
dd[k] = unescape(v)
return dd
def _reverseDict(d):
dd = {}
for k, v in d.items():
dd[v]=k
return dd
class MicroDOMParser(XMLParser):
# <dash> glyph: a quick scan thru the DTD says BODY, AREA, LINK, IMG, HR,
# P, DT, DD, LI, INPUT, OPTION, THEAD, TFOOT, TBODY, COLGROUP, COL, TR, TH,
# TD, HEAD, BASE, META, HTML all have optional closing tags
soonClosers = 'area link br img hr input base meta'.split()
laterClosers = {'p': ['p'],
'dt': ['dt','dd'],
'dd': ['dt', 'dd'],
'li': ['li'],
'tbody': ['thead', 'tfoot', 'tbody'],
'thead': ['thead', 'tfoot', 'tbody'],
'tfoot': ['thead', 'tfoot', 'tbody'],
'colgroup': ['colgroup'],
'col': ['col'],
'tr': ['tr'],
'td': ['td'],
'th': ['th'],
'head': ['body'],
'title': ['head', 'body'], # this looks wrong...
'option': ['option'],
}
def __init__(self, beExtremelyLenient=0, caseInsensitive=1, preserveCase=0, soonClosers=soonClosers, laterClosers=laterClosers):
self.elementstack = []
d = {'xmlns': 'xmlns', '':''}
dr = _reverseDict(d)
self.nsstack = [(d,None,dr)]
self.documents = []
self._mddoctype = None
self.beExtremelyLenient = beExtremelyLenient
self.caseInsensitive = caseInsensitive
self.preserveCase = preserveCase or not caseInsensitive
self.soonClosers = soonClosers
self.laterClosers = laterClosers
# self.indentlevel = 0
def shouldPreserveSpace(self):
for edx in xrange(len(self.elementstack)):
el = self.elementstack[-edx]
if el.tagName == 'pre' or el.getAttribute("xml:space", '') == 'preserve':
return 1
return 0
def _getparent(self):
if self.elementstack:
return self.elementstack[-1]
else:
return None
COMMENT = re.compile(r"\s*/[/*]\s*")
def _fixScriptElement(self, el):
# this deals with case where there is comment or CDATA inside
# <script> tag and we want to do the right thing with it
if not self.beExtremelyLenient or not len(el.childNodes) == 1:
return
c = el.firstChild()
if isinstance(c, Text):
# deal with nasty people who do stuff like:
# <script> // <!--
# x = 1;
# // --></script>
# tidy does this, for example.
prefix = ""
oldvalue = c.value
match = self.COMMENT.match(oldvalue)
if match:
prefix = match.group()
oldvalue = oldvalue[len(prefix):]
# now see if contents are actual node and comment or CDATA
try:
e = parseString("<a>%s</a>" % oldvalue).childNodes[0]
except (ParseError, MismatchedTags):
return
if len(e.childNodes) != 1:
return
e = e.firstChild()
if isinstance(e, (CDATASection, Comment)):
el.childNodes = []
if prefix:
el.childNodes.append(Text(prefix))
el.childNodes.append(e)
def gotDoctype(self, doctype):
self._mddoctype = doctype
def gotTagStart(self, name, attributes):
# print ' '*self.indentlevel, 'start tag',name
# self.indentlevel += 1
parent = self._getparent()
if (self.beExtremelyLenient and isinstance(parent, Element) and
self.laterClosers.has_key(parent.tagName) and
name in self.laterClosers[parent.tagName]):
self.gotTagEnd(parent.tagName)
parent = self._getparent()
attributes = _unescapeDict(attributes)
namespaces = self.nsstack[-1][0]
newspaces = {}
for k, v in attributes.items():
if k.startswith('xmlns'):
spacenames = k.split(':',1)
if len(spacenames) == 2:
newspaces[spacenames[1]] = v
else:
newspaces[''] = v
del attributes[k]
if newspaces:
namespaces = namespaces.copy()
namespaces.update(newspaces)
for k, v in attributes.items():
ksplit = k.split(':', 1)
if len(ksplit) == 2:
pfx, tv = ksplit
if pfx != 'xml' and namespaces.has_key(pfx):
attributes[namespaces[pfx], tv] = v
del attributes[k]
el = Element(name, attributes, parent,
self.filename, self.saveMark(),
caseInsensitive=self.caseInsensitive,
preserveCase=self.preserveCase,
namespace=namespaces.get(''))
revspaces = _reverseDict(newspaces)
el.addPrefixes(revspaces)
if newspaces:
rscopy = self.nsstack[-1][2].copy()
rscopy.update(revspaces)
self.nsstack.append((namespaces, el, rscopy))
self.elementstack.append(el)
if parent:
parent.appendChild(el)
if (self.beExtremelyLenient and el.tagName in self.soonClosers):
self.gotTagEnd(name)
def _gotStandalone(self, factory, data):
parent = self._getparent()
te = factory(data, parent)
if parent:
parent.appendChild(te)
elif self.beExtremelyLenient:
self.documents.append(te)
def gotText(self, data):
if data.strip() or self.shouldPreserveSpace():
self._gotStandalone(Text, data)
def gotComment(self, data):
self._gotStandalone(Comment, data)
def gotEntityReference(self, entityRef):
self._gotStandalone(EntityReference, entityRef)
def gotCData(self, cdata):
self._gotStandalone(CDATASection, cdata)
def gotTagEnd(self, name):
# print ' '*self.indentlevel, 'end tag',name
# self.indentlevel -= 1
if not self.elementstack:
if self.beExtremelyLenient:
return
raise MismatchedTags(*((self.filename, "NOTHING", name)
+self.saveMark()+(0,0)))
el = self.elementstack.pop()
pfxdix = self.nsstack[-1][2]
if self.nsstack[-1][1] is el:
nstuple = self.nsstack.pop()
else:
nstuple = None
if self.caseInsensitive:
tn = el.tagName.lower()
cname = name.lower()
else:
tn = el.tagName
cname = name
nsplit = name.split(':',1)
if len(nsplit) == 2:
pfx, newname = nsplit
ns = pfxdix.get(pfx,None)
if ns is not None:
if el.namespace != ns:
if not self.beExtremelyLenient:
raise MismatchedTags(*((self.filename, el.tagName, name)
+self.saveMark()+el._markpos))
if not (tn == cname):
if self.beExtremelyLenient:
if self.elementstack:
lastEl = self.elementstack[0]
for idx in xrange(len(self.elementstack)):
if self.elementstack[-(idx+1)].tagName == cname:
self.elementstack[-(idx+1)].endTag(name)
break
else:
# this was a garbage close tag; wait for a real one
self.elementstack.append(el)
if nstuple is not None:
self.nsstack.append(nstuple)
return
del self.elementstack[-(idx+1):]
if not self.elementstack:
self.documents.append(lastEl)
return
else:
raise MismatchedTags(*((self.filename, el.tagName, name)
+self.saveMark()+el._markpos))
el.endTag(name)
if not self.elementstack:
self.documents.append(el)
if self.beExtremelyLenient and el.tagName == "script":
self._fixScriptElement(el)
def connectionLost(self, reason):
if self.elementstack:
if self.beExtremelyLenient:
self.documents.append(self.elementstack[0])
else:
raise MismatchedTags(*((self.filename, self.elementstack[-1],
"END_OF_FILE")
+self.saveMark()
+self.elementstack[-1]._markpos))
def parse(readable, *args, **kwargs):
"""Parse HTML or XML readable."""
if not hasattr(readable, "read"):
readable = open(readable, "rb")
mdp = MicroDOMParser(*args, **kwargs)
mdp.filename = getattr(readable, "name", "<xmlfile />")
mdp.makeConnection(None)
if hasattr(readable,"getvalue"):
mdp.dataReceived(readable.getvalue())
else:
r = readable.read(1024)
while r:
mdp.dataReceived(r)
r = readable.read(1024)
mdp.connectionLost(None)
if not mdp.documents:
raise ParseError(mdp.filename, 0, 0, "No top-level Nodes in document")
if mdp.beExtremelyLenient:
if len(mdp.documents) == 1:
d = mdp.documents[0]
else:
d = None
for el in mdp.documents:
if isinstance(el, Element):
if d is not None:
d = None
break
d = el
if d is None:
d = Element("html")
d.childNodes[:] = mdp.documents
else:
d = mdp.documents[0]
doc = Document(d)
doc.doctype = mdp._mddoctype
return doc
def parseString(st, *args, **kw):
if isinstance(st, UnicodeType):
# this isn't particularly ideal, but it does work.
return parse(StringIO(st.encode('UTF-16')), *args, **kw)
return parse(StringIO(st), *args, **kw)
def parseXML(readable):
"""Parse an XML readable object."""
return parse(readable, caseInsensitive=0, preserveCase=1)
def parseXMLString(st):
"""Parse an XML readable object."""
return parseString(st, caseInsensitive=0, preserveCase=1)
# Utility
class lmx:
"""Easy creation of XML."""
def __init__(self, node='div'):
if isinstance(node, StringTypes):
node = Element(node)
self.node = node
def __getattr__(self, name):
if name[0] == '_':
raise AttributeError("no private attrs")
return lambda **kw: self.add(name,**kw)
def __setitem__(self, key, val):
self.node.setAttribute(key, val)
def __getitem__(self, key):
return self.node.getAttribute(key)
def text(self, txt, raw=0):
nn = Text(txt, raw=raw)
self.node.appendChild(nn)
return self
def add(self, tagName, **kw):
newNode = Element(tagName, caseInsensitive=0, preserveCase=0)
self.node.appendChild(newNode)
xf = lmx(newNode)
for k, v in kw.items():
if k[0] == '_':
k = k[1:]
xf[k]=v
return xf
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