Viewing file:  ParsedAbbreviatedAbsoluteLocationPath.py (2 KB) -rw-r--r--
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########################################################################
#
# File Name: ParsedAbbreviatedAbsoluteLocationPath.py
#
#
"""
A parsed token for an abreviated absolute location path.
WWW: http://4suite.org/XPATH e-mail: support@4suite.org
Copyright (c) 2000-2001 Fourthought Inc, USA. All Rights Reserved.
See http://4suite.org/COPYRIGHT for license and copyright information
"""
from xml.xpath import ParsedNodeTest
from xml.xpath import ParsedPredicateList
from xml.xpath import ParsedStep
from xml.xpath import ParsedAxisSpecifier
LOOKAHEAD_OPTIMIZERS = {
}
class ParsedAbbreviatedAbsoluteLocationPath:
def __init__(self,rel):
self._rel = rel
nt = ParsedNodeTest.ParsedNodeTest('node', '')
ppl = ParsedPredicateList.ParsedPredicateList([])
as = ParsedAxisSpecifier.ParsedAxisSpecifier('descendant-or-self')
self._step = ParsedStep.ParsedStep(as, nt, ppl)
return
def evaluate(self, context):
origState = context.copyNodePosSize()
root = context.node.ownerDocument or context.node
context.setNodePosSize((root,1,1))
rt = self._step.select(context)
res = []
l = len(rt)
sub_rt = []
for ctr in range(l):
n = rt[ctr]
context.setNodePosSize((n,ctr+1,l))
sub_rt.extend(self._rel.select(context))
if sub_rt and hasattr(sub_rt[0], 'ownerElement'):
result = sub_rt
else:
result = filter(lambda x, compare=sub_rt: x in compare, rt)
context.setNodePosSize(origState)
return result
select = evaluate
def pprint(self, indent=''):
print indent + str(self)
self._step.pprint(indent + ' ')
self._rel.pprint(indent + ' ')
def __str__(self):
return '<AbbreviatedAbsoluteLocationPath at %x: %s>' % (
id(self),
repr(self)
)
def __repr__(self):
return '/%s/%s' % (repr(self._step), repr(self._rel))
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