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84 lines
1.9 KiB
84 lines
1.9 KiB
# Copyright (c) 2010-2022 openpyxl
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"""
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XML compatability functions
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"""
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# Python stdlib imports
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import re
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from functools import partial
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from openpyxl import DEFUSEDXML, LXML
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if LXML is True:
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from lxml.etree import (
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Element,
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SubElement,
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register_namespace,
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QName,
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xmlfile,
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XMLParser,
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)
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from lxml.etree import fromstring, tostring
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# do not resolve entities
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safe_parser = XMLParser(resolve_entities=False)
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fromstring = partial(fromstring, parser=safe_parser)
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else:
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from xml.etree.ElementTree import (
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Element,
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SubElement,
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fromstring,
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tostring,
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QName,
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register_namespace
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)
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from et_xmlfile import xmlfile
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if DEFUSEDXML is True:
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from defusedxml.ElementTree import fromstring
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from xml.etree.ElementTree import iterparse
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if DEFUSEDXML is True:
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from defusedxml.ElementTree import iterparse
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from openpyxl.xml.constants import (
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CHART_NS,
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DRAWING_NS,
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SHEET_DRAWING_NS,
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CHART_DRAWING_NS,
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SHEET_MAIN_NS,
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REL_NS,
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VTYPES_NS,
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COREPROPS_NS,
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DCTERMS_NS,
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DCTERMS_PREFIX,
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XML_NS
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)
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register_namespace(DCTERMS_PREFIX, DCTERMS_NS)
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register_namespace('dcmitype', 'http://purl.org/dc/dcmitype/')
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register_namespace('cp', COREPROPS_NS)
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register_namespace('c', CHART_NS)
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register_namespace('a', DRAWING_NS)
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register_namespace('s', SHEET_MAIN_NS)
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register_namespace('r', REL_NS)
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register_namespace('vt', VTYPES_NS)
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register_namespace('xdr', SHEET_DRAWING_NS)
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register_namespace('cdr', CHART_DRAWING_NS)
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register_namespace('xml', XML_NS)
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tostring = partial(tostring, encoding="utf-8")
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NS_REGEX = re.compile("({(?P<namespace>.*)})?(?P<localname>.*)")
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def localname(node):
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if callable(node.tag):
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return "comment"
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m = NS_REGEX.match(node.tag)
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return m.group('localname')
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def whitespace(node):
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if node.text != node.text.strip():
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node.set("{%s}space" % XML_NS, "preserve")
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