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ToCompactXML[expr]

generates an equivalent SymbolicXML expression that suppresses all the redundant namespace information for elements and attributes in expr.

ToCompactXML[expr,patt]

suppresses only namespaces that match patt.

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
See Also
Tech Notes
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XML`
XML`

ToCompactXML

ToCompactXML[expr]

generates an equivalent SymbolicXML expression that suppresses all the redundant namespace information for elements and attributes in expr.

ToCompactXML[expr,patt]

suppresses only namespaces that match patt.

Details and Options

  • To use ToCompactXML, you first need to load the XML Package using Needs["XML`"].
  • The following option can be given:
  • "AttributesDefaultNameSpace""NullNameSpace"controls how attribute namespaces are abbreviated

Examples

Basic Examples  (1)

Wolfram Language code: Needs["XML`"]

XML with explicit namespace information:

Wolfram Language code: xmlNull = XMLElement[{"A", "foo"}, {"xmlns" -> "A", {"", "att"} -> "val"}, {}]; xmlSame = XMLElement[{"A", "foo"}, {"xmlns" -> "A", {"A", "att"} -> "val"}, {}]; xmlDifferent = XMLElement[{"A", "foo"}, {"xmlns" -> "A", {"B", "att"} -> "val"}, {}];

ToCompactXML suppresses redundant namespace information for elements. Attributes in the null namespace always get compacted, regardless of the setting of "AttributesDefaultNameSpace":

Wolfram Language code: ToCompactXML[xmlNull, "AttributesDefaultNameSpace" -> "NullNameSpace"]
Wolfram Language code: ToCompactXML[xmlNull, "AttributesDefaultNameSpace" -> "ElementNameSpace"]

Attributes in the same default namespace as the element only get compacted when "AttributesDefaultNameSpace" is "ElementNameSpace":

Wolfram Language code: ToCompactXML[xmlSame, "AttributesDefaultNameSpace" -> "NullNameSpace"]
Wolfram Language code: ToCompactXML[xmlSame, "AttributesDefaultNameSpace" -> "ElementNameSpace"]

Attributes in other namespaces do not get compacted:

Wolfram Language code: ToCompactXML[xmlDifferent, "AttributesDefaultNameSpace" -> "NullNameSpace"]
Wolfram Language code: ToCompactXML[xmlDifferent, "AttributesDefaultNameSpace" -> "ElementNameSpace"]

If the namespace of a tag is explicit but different from the default, attributes will not be compacted:

Wolfram Language code: ToCompactXML[XMLElement[{"A", "foo"}, {"xmlns" -> "B", {"A", "att"} -> "val"}, {}], "AttributesDefaultNameSpace" -> "ElementNameSpace"]

The default namespace may be inherited from containing tags:

Wolfram Language code: ToCompactXML[XMLElement["root", {"xmlns" -> "B"}, {XMLElement[{"A", "foo"}, {{"B", "att"} -> "val"}, {}]}], "AttributesDefaultNameSpace" -> "ElementNameSpace"]