New submission from Vladimir Surjaninov :
If we are writing xml with CDATA section and leaving non-empty indentation and
new-line parameters, a parent node of the section will contain useless
indentation, that will be parsed as a text.
Example:
>>>doc = minidom.Document()
>>>root = doc.createElement('root')
>>>doc.appendChild(root)
>>>node = doc.createElement('node')
>>>root.appendChild(node)
>>>data = doc.createCDATASection('')
>>>node.appendChild(data)
>>>print(doc.toprettyxml(indent=‘ ‘ * 4)
If we try to parse this output doc, we won’t get CDATA value correctly.
Following code returns a string that contains only indentation characters:
>>>doc = minidom.parseString(xml_text)
>>>doc.getElementsByTagName('node')[0].firstChild.nodeValue
Returns a string with CDATA value and indentation characters:
>>>doc.getElementsByTagName('node')[0].firstChild.wholeText
But we have a workaround:
>>>data.nodeType = data.TEXT_NODE
…
>>>print(doc.toprettyxml(indent=‘ ‘ * 4)
It will be parsed correctly:
>>>doc.getElementsByTagName('node')[0].firstChild.nodeValue
But I think it will be better if we fix the writing function, which would set
this as default behavior.
--
components: XML
messages: 338681
nosy: vsurjaninov
priority: normal
severity: normal
status: open
title: xml.dom.minidom wrong indentation writing for CDATA section
type: enhancement
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Python tracker
<https://bugs.python.org/issue36407>
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