XMLTools[AttributeValue] - retrieve the value of an attribute of an XML element
XMLTools[AttributeValueWithDefault] - retrieve the value of an attribute of an XML element, or a specified default value if the attribute is not present
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Calling Sequence
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AttributeValue(xmlTree, attrName)
AttributeValueWithDefault(xmlTree, attrName, defValue)
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Parameters
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xmlTree
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Maple XML tree; XML element
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attrName
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string; attribute name
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defValue
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-
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string; default value
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Description
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The AttributeValue(xmlTree, attrName) command extracts the value of an attribute from the XML element xmlTree. The attribute, whose value is sought, must be specified by its name attrName.
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If the attribute attrName is not present in the XML element xmlTree, an error is returned.
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Note: Only the attributes that belong to the XML element xmlTree are examined. This function does not examine attributes of any subelements.
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The AttributeValueWithDefault(xmlTree, attrName, defValue) command is similar to AttributeValue, except that it takes a third argument defValue. The defValue parameter is a string that specifies a default value for the named attribute attrName if it is not present in the element represented by xmlTree.
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Note: Only the attributes that belong to the XML element xmlTree are examined. As in the case of AttributeValue, this function does not examine attributes of any subelements.
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Examples
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