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