51 lines
1.7 KiB
Python
51 lines
1.7 KiB
Python
|
from __future__ import absolute_import, division, unicode_literals
|
||
|
|
|
||
|
|
from xml.sax.xmlreader import AttributesNSImpl
|
||
|
|
|
||
|
|
from ..constants import adjustForeignAttributes, unadjustForeignAttributes
|
||
|
|
|
||
|
|
prefix_mapping = {}
|
||
|
|
for prefix, localName, namespace in adjustForeignAttributes.values():
|
||
|
|
if prefix is not None:
|
||
|
|
prefix_mapping[prefix] = namespace
|
||
|
|
|
||
|
|
|
||
|
|
def to_sax(walker, handler):
|
||
|
|
"""Call SAX-like content handler based on treewalker walker
|
||
|
|
|
||
|
|
:arg walker: the treewalker to use to walk the tree to convert it
|
||
|
|
|
||
|
|
:arg handler: SAX handler to use
|
||
|
|
|
||
|
|
"""
|
||
|
|
handler.startDocument()
|
||
|
|
for prefix, namespace in prefix_mapping.items():
|
||
|
|
handler.startPrefixMapping(prefix, namespace)
|
||
|
|
|
||
|
|
for token in walker:
|
||
|
|
type = token["type"]
|
||
|
|
if type == "Doctype":
|
||
|
|
continue
|
||
|
|
elif type in ("StartTag", "EmptyTag"):
|
||
|
|
attrs = AttributesNSImpl(token["data"],
|
||
|
|
unadjustForeignAttributes)
|
||
|
|
handler.startElementNS((token["namespace"], token["name"]),
|
||
|
|
token["name"],
|
||
|
|
attrs)
|
||
|
|
if type == "EmptyTag":
|
||
|
|
handler.endElementNS((token["namespace"], token["name"]),
|
||
|
|
token["name"])
|
||
|
|
elif type == "EndTag":
|
||
|
|
handler.endElementNS((token["namespace"], token["name"]),
|
||
|
|
token["name"])
|
||
|
|
elif type in ("Characters", "SpaceCharacters"):
|
||
|
|
handler.characters(token["data"])
|
||
|
|
elif type == "Comment":
|
||
|
|
pass
|
||
|
|
else:
|
||
|
|
assert False, "Unknown token type"
|
||
|
|
|
||
|
|
for prefix, namespace in prefix_mapping.items():
|
||
|
|
handler.endPrefixMapping(prefix)
|
||
|
|
handler.endDocument()
|