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authorFred Drake <fdrake@acm.org>2000-09-24 05:21:58 (GMT)
committerFred Drake <fdrake@acm.org>2000-09-24 05:21:58 (GMT)
commit1f54902e05de94848fe728a24baf14dd605a65de (patch)
tree30adb25880332e1283e9b0ff281f119bed20cb1c /Lib/xml/dom/pulldom.py
parentddb486745bbcb912eee2e84791273fa0a8e3c9e2 (diff)
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Conform to the Python style guide.
Diffstat (limited to 'Lib/xml/dom/pulldom.py')
-rw-r--r--Lib/xml/dom/pulldom.py246
1 files changed, 121 insertions, 125 deletions
diff --git a/Lib/xml/dom/pulldom.py b/Lib/xml/dom/pulldom.py
index ae8ea1c..011d46a 100644
--- a/Lib/xml/dom/pulldom.py
+++ b/Lib/xml/dom/pulldom.py
@@ -1,159 +1,157 @@
import minidom
-import types
-import string
-import sys
import xml.sax
#todo: SAX2/namespace handling
-START_ELEMENT="START_ELEMENT"
-END_ELEMENT="END_ELEMENT"
-COMMENT="COMMENT"
-START_DOCUMENT="START_DOCUMENT"
-END_DOCUMENT="END_DOCUMENT"
-PROCESSING_INSTRUCTION="PROCESSING_INSTRUCTION"
-IGNORABLE_WHITESPACE="IGNORABLE_WHITESPACE"
-CHARACTERS="CHARACTERS"
+START_ELEMENT = "START_ELEMENT"
+END_ELEMENT = "END_ELEMENT"
+COMMENT = "COMMENT"
+START_DOCUMENT = "START_DOCUMENT"
+END_DOCUMENT = "END_DOCUMENT"
+PROCESSING_INSTRUCTION = "PROCESSING_INSTRUCTION"
+IGNORABLE_WHITESPACE = "IGNORABLE_WHITESPACE"
+CHARACTERS = "CHARACTERS"
class PullDOM:
- def __init__( self ):
- self.firstEvent=[None,None]
- self.lastEvent=self.firstEvent
+ def __init__(self):
+ self.firstEvent = [None, None]
+ self.lastEvent = self.firstEvent
- def setDocumentLocator( self, locator ): pass
+ def setDocumentLocator(self, locator): pass
- def startElement( self, name, tagName , attrs ):
- if not hasattr( self, "curNode" ):
+ def startElement(self, name, tagName, attrs):
+ if not hasattr(self, "curNode"):
# FIXME: hack!
- self.startDocument( )
+ self.startDocument()
- node = self.document.createElement( tagName ) #FIXME namespaces!
+ node = self.document.createElement(tagName) #FIXME namespaces!
for attr in attrs.keys():
- node.setAttribute( attr, attrs[attr] )
-
- parent=self.curNode
+ node.setAttribute(attr, attrs[attr])
+
+ parent = self.curNode
node.parentNode = parent
if parent.childNodes:
- node.previousSibling=parent.childNodes[-1]
- node.previousSibling.nextSibling=node
+ node.previousSibling = parent.childNodes[-1]
+ node.previousSibling.nextSibling = node
self.curNode = node
# FIXME: do I have to screen namespace attributes
- self.lastEvent[1]=[(START_ELEMENT, node), None ]
- self.lastEvent=self.lastEvent[1]
- #self.events.append( (START_ELEMENT, node) )
+ self.lastEvent[1] = [(START_ELEMENT, node), None]
+ self.lastEvent = self.lastEvent[1]
+ #self.events.append((START_ELEMENT, node))
- def endElement( self, name, tagName ):
+ def endElement(self, name, tagName):
node = self.curNode
- self.lastEvent[1]=[(END_ELEMENT, node), None ]
- self.lastEvent=self.lastEvent[1]
- #self.events.append( (END_ELEMENT, node ))
+ self.lastEvent[1] = [(END_ELEMENT, node), None]
+ self.lastEvent = self.lastEvent[1]
+ #self.events.append((END_ELEMENT, node))
self.curNode = node.parentNode
- def comment( self, s):
- node = self.document.createComment ( s )
- parent=self.curNode
- node.parentNode=parent
+ def comment(self, s):
+ node = self.document.createComment(s)
+ parent = self.curNode
+ node.parentNode = parent
if parent.childNodes:
- node.previousSibling=parent.childNodes[-1]
- node.previousSibling.nextSibling=node
- self.lastEvent[1]=[(COMMENT, node), None ]
- self.lastEvent=self.lastEvent[1]
- #self.events.append( (COMMENT, node ))
-
- def processingInstruction( self, target, data ):
- node = self.document.createProcessingInstruction( target, data )
- #self.appendChild( node )
+ node.previousSibling = parent.childNodes[-1]
+ node.previousSibling.nextSibling = node
+ self.lastEvent[1] = [(COMMENT, node), None]
+ self.lastEvent = self.lastEvent[1]
+ #self.events.append((COMMENT, node))
+
+ def processingInstruction(self, target, data):
+ node = self.document.createProcessingInstruction(target, data)
+ #self.appendChild(node)
- parent=self.curNode
- node.parentNode=parent
+ parent = self.curNode
+ node.parentNode = parent
if parent.childNodes:
- node.previousSibling=parent.childNodes[-1]
- node.previousSibling.nextSibling=node
- self.lastEvent[1]=[(PROCESSING_INSTRUCTION, node), None ]
- self.lastEvent=self.lastEvent[1]
- #self.events.append( (PROCESSING_INSTRUCTION, node) )
-
- def ignorableWhitespace( self, chars ):
- node = self.document.createTextNode( chars[start:start+length] )
- parent=self.curNode
- node.parentNode=parent
+ node.previousSibling = parent.childNodes[-1]
+ node.previousSibling.nextSibling = node
+ self.lastEvent[1] = [(PROCESSING_INSTRUCTION, node), None]
+ self.lastEvent = self.lastEvent[1]
+ #self.events.append((PROCESSING_INSTRUCTION, node))
+
+ def ignorableWhitespace(self, chars):
+ node = self.document.createTextNode(chars[start:start + length])
+ parent = self.curNode
+ node.parentNode = parent
if parent.childNodes:
- node.previousSibling=parent.childNodes[-1]
- node.previousSibling.nextSibling=node
- self.lastEvent[1]=[(IGNORABLE_WHITESPACE, node), None ]
- self.lastEvent=self.lastEvent[1]
- #self.events.append( (IGNORABLE_WHITESPACE, node))
-
- def characters( self, chars ):
- node = self.document.createTextNode( chars )
- node.parentNode=self.curNode
- self.lastEvent[1]=[(CHARACTERS, node), None ]
- self.lastEvent=self.lastEvent[1]
-
- def startDocument( self ):
+ node.previousSibling = parent.childNodes[-1]
+ node.previousSibling.nextSibling = node
+ self.lastEvent[1] = [(IGNORABLE_WHITESPACE, node), None]
+ self.lastEvent = self.lastEvent[1]
+ #self.events.append((IGNORABLE_WHITESPACE, node))
+
+ def characters(self, chars):
+ node = self.document.createTextNode(chars)
+ node.parentNode = self.curNode
+ self.lastEvent[1] = [(CHARACTERS, node), None]
+ self.lastEvent = self.lastEvent[1]
+
+ def startDocument(self):
node = self.curNode = self.document = minidom.Document()
- node.parentNode=None
- self.lastEvent[1]=[(START_DOCUMENT, node), None ]
- self.lastEvent=self.lastEvent[1]
- #self.events.append( (START_DOCUMENT, node) )
-
- def endDocument( self ):
- assert( not self.curNode.parentNode )
+ node.parentNode = None
+ self.lastEvent[1] = [(START_DOCUMENT, node), None]
+ self.lastEvent = self.lastEvent[1]
+ #self.events.append((START_DOCUMENT, node))
+
+ def endDocument(self):
+ assert not self.curNode.parentNode
for node in self.curNode.childNodes:
- if node.nodeType==node.ELEMENT_NODE:
- self.document.documentElement = node
+ if node.nodeType == node.ELEMENT_NODE:
+ self.document.documentElement = node
#if not self.document.documentElement:
- # raise Error, "No document element"
+ # raise Error, "No document element"
- self.lastEvent[1]=[(END_DOCUMENT, node), None ]
- #self.events.append( (END_DOCUMENT, self.curNode) )
+ self.lastEvent[1] = [(END_DOCUMENT, node), None]
+ #self.events.append((END_DOCUMENT, self.curNode))
class ErrorHandler:
- def warning( self, exception ):
+ def warning(self, exception):
print exception
- def error( self, exception ):
+ def error(self, exception):
raise exception
- def fatalError( self, exception ):
+ def fatalError(self, exception):
raise exception
class DOMEventStream:
- def __init__( self, stream, parser, bufsize ):
- self.stream=stream
- self.parser=parser
- self.bufsize=bufsize
+ def __init__(self, stream, parser, bufsize):
+ self.stream = stream
+ self.parser = parser
+ self.bufsize = bufsize
self.reset()
- def reset( self ):
+ def reset(self):
self.pulldom = PullDOM()
- self.parser.setContentHandler( self.pulldom )
+ self.parser.setContentHandler(self.pulldom)
- def __getitem__( self, pos ):
- rc=self.getEvent()
- if rc: return rc
+ def __getitem__(self, pos):
+ rc = self.getEvent()
+ if rc:
+ return rc
raise IndexError
- def expandNode( self, node ):
- event=self.getEvent()
+ def expandNode(self, node):
+ event = self.getEvent()
while event:
- token,cur_node=event
- if cur_node is node: return
-
- if token !=END_ELEMENT:
- cur_node.parentNode.appendChild( cur_node )
- event=self.getEvent()
-
- def getEvent( self ):
+ token, cur_node = event
+ if cur_node is node:
+ return
+ if token != END_ELEMENT:
+ cur_node.parentNode.appendChild(cur_node)
+ event = self.getEvent()
+
+ def getEvent(self):
if not self.pulldom.firstEvent[1]:
- self.pulldom.lastEvent=self.pulldom.firstEvent
+ self.pulldom.lastEvent = self.pulldom.firstEvent
while not self.pulldom.firstEvent[1]:
- buf=self.stream.read( self.bufsize )
+ buf=self.stream.read(self.bufsize)
if not buf:
#FIXME: why doesn't Expat close work?
#self.parser.close()
return None
- self.parser.feed( buf )
- rc=self.pulldom.firstEvent[1][0]
- self.pulldom.firstEvent[1]=self.pulldom.firstEvent[1][1]
+ self.parser.feed(buf)
+ rc = self.pulldom.firstEvent[1][0]
+ self.pulldom.firstEvent[1] = self.pulldom.firstEvent[1][1]
return rc
# FIXME: sax2
@@ -168,27 +166,25 @@ class DOMEventStream:
def _getParser():
return xml.sax.make_parser()
-default_bufsize=(2**14)-20
+default_bufsize = (2 ** 14) - 20
+
# FIXME: move into sax package for common usage
-def parse( stream_or_string, parser=None, bufsize=default_bufsize ):
- if type( stream_or_string ) == type( "" ):
- stream=open( stream_or_string )
+def parse(stream_or_string, parser=None, bufsize=default_bufsize):
+ if type(stream_or_string) is type(""):
+ stream = open(stream_or_string)
else:
- stream=stream_or_string
+ stream = stream_or_string
if not parser:
- parser=_getParser()
- return DOMEventStream( stream, parser, bufsize )
+ parser = _getParser()
+ return DOMEventStream(stream, parser, bufsize)
-def parseString( string, parser=None ):
+def parseString(string, parser=None):
try:
- import cStringIO
- stringio=cStringIO.StringIO
+ from cStringIO import StringIO
except ImportError:
- import StringIO
- stringio=StringIO.StringIO
+ from StringIO import StringIO
- bufsize=len( string )
- buf=stringio( string )
- parser=_getParser()
- return DOMEventStream( buf, parser, bufsize )
-
+ bufsize = len(string)
+ buf = StringIO(string)
+ parser = _getParser()
+ return DOMEventStream(buf, parser, bufsize)