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import xml.parsers.expat, sys
import globals, node
class ParseFailed(globals.Exception):
def __init__ (self):
globals.Exception.__init__(self, "parse failed")
class ParserBase:
def __init__ (self, strm):
self.strm = strm
self.root = node.Root()
self.nodestack = [self.root]
self.char = None
def startElement(self, name, attrs):
for key in attrs.keys():
s = attrs[key]
s = s.replace('$[officename]', globals.productName)
s = s.replace('%PRODUCTNAME', globals.productName)
attrs[key] = s
n = node.Element(name, attrs)
self.nodestack[-1].appendChild(n)
self.nodestack.append(n)
def endElement(self, name):
if name != self.nodestack[-1].name:
raise ParseFailed()
self.nodestack.pop()
def character(self, data):
if len(data) > 0 and data[-1] == "\n":
data = data[:-1]
s = repr(data)
if len(s) >= 3 and s[0] == 'u' and s[1] == "'" and s[-1] == "'":
# move the unicode quote (e.g. u'foo' -> foo) if exists.
s = s[2:-1]
s = s.replace('$[officename]', globals.productName)
s = s.replace('%PRODUCTNAME', globals.productName)
self.nodestack[-1].appendChild(node.Content(s))
self.char = s # store current character.
def parse (self):
p = xml.parsers.expat.ParserCreate()
p.StartElementHandler = self.startElement
p.EndElementHandler = self.endElement
p.CharacterDataHandler = self.character
p.Parse(self.strm, 1)
class XHPParser(ParserBase):
def __init__ (self, strm):
ParserBase.__init__(self, strm)
self.filename = None
self.ids = {}
def startElement(self, name, attrs):
ParserBase.startElement(self, name, attrs)
if attrs.has_key('id'):
# associate this node with this ID.
val = attrs['id']
self.ids[val] = self.nodestack[-1]
def character(self, data):
ParserBase.character(self, data)
if self.nodestack[-1].name == 'filename':
# For now, I just assume that the filename element is always at the correct position.
self.filename = self.char
class TreeParser(ParserBase):
def __init__ (self, strm):
ParserBase.__init__(self, strm)
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