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[2.7] bpo-36407: Fix writing indentations of CDATA section (xml.dom.minidom). (GH-12514) #12578

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[2.7] bpo-36407: Fix writing indentations of CDATA section (xml.dom.minidom). (GH-12514) #12578

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16 changes: 16 additions & 0 deletions Lib/test/test_minidom.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1499,5 +1499,21 @@ def testEmptyXMLNSValue(self):
def test_main():
support.run_unittest(MinidomTest)

def test_toprettyxml_with_cdata(self):
xml_str = '<?xml version="1.0" ?><root><node><![CDATA[</data>]]></node></root>'
doc = parseString(xml_str)
self.assertEqual(doc.toprettyxml(),
'<?xml version="1.0" ?>\n'
'<root>\n'
'\t<node><![CDATA[</data>]]></node>\n'
'</root>\n')

def test_cdata_parsing(self):
xml_str = '<?xml version="1.0" ?><root><node><![CDATA[</data>]]></node></root>'
dom1 = parseString(xml_str)
self.checkWholeText(dom1.getElementsByTagName('node')[0].firstChild, '</data>')
dom2 = parseString(dom1.toprettyxml())
self.checkWholeText(dom2.getElementsByTagName('node')[0].firstChild, '</data>')

if __name__ == "__main__":
test_main()
3 changes: 2 additions & 1 deletion Lib/xml/dom/minidom.py
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Original file line number Diff line number Diff line change
Expand Up @@ -806,7 +806,8 @@ def writexml(self, writer, indent="", addindent="", newl=""):
if self.childNodes:
writer.write(">")
if (len(self.childNodes) == 1 and
self.childNodes[0].nodeType == Node.TEXT_NODE):
self.childNodes[0].nodeType in (
Node.TEXT_NODE, Node.CDATA_SECTION_NODE)):
self.childNodes[0].writexml(writer, '', '', '')
else:
writer.write(newl)
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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2019-03-23-17-16-15.bpo-36407.LG3aC4.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
Fixed wrong indentation writing for CDATA section in xml.dom.minidom.
Patch by Vladimir Surjaninov.