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#!/usr/bin/python -u
# -*- coding: utf-8 -*-
class NamespaceStack():
def __init__(self):
# self.increaseDepth()
self._depth = 1
self._prefix_2_uri = {}
self._uri_2_prefix = {}
self._pairs = []
pass
def getDepth(self):
return self._depth
def incDepth(self):
self._depth += 1
def decDepth(self):
self._depth -= 1
def count(self):
"""Provider the current number of active namespaces."""
return len(self._pairs)
def push(self, prefix, uri):
self._prefix_2_uri[prefix] = uri
self._uri_2_prefix[uri] = prefix
self._pairs.append((prefix, uri))
#print "PUSH", prefix, uri
def pop(self):
self._pairs.pop()
#print "POP"
def getPrefix(self, index):
if index < len(self._pairs):
return self._pairs[index][0]
else:
return -1
def findPrefix(self, uri):
if uri in self._uri_2_prefix:
return self._uri_2_prefix[uri]
else:
return -1
def getUri(self, index):
if index < len(self._pairs):
return self._pairs[index][1]
else:
return -1
def findUri(self, prefix):
if prefix in self._prefix_2_uri:
return self._prefix_2_uri[prefix]
else:
return -1
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