|
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
|
|
Calling Sequence
|
|
AttributeValue(xmlTree, attrName)
AttributeValueWithDefault(xmlTree, attrName, defValue)
|
|
|
Parameters
|
|
|
xmlTree
|
-
|
Maple XML tree; XML element
|
|
attrName
|
-
|
string; attribute name
|
|
defValue
|
-
|
string; default value
|
|
|
|
|
|
Description
|
|
|
•
|
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.
|
|
|
If the attribute attrName is not present in the XML element xmlTree, an error is returned.
|
|
|
Note: Only the attributes that belong to the XML element xmlTree are examined. This function does not examine attributes of any subelements.
|
|
•
|
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.
|
|
|
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.
|
|
|
|
Examples
|
|
|
>
|
|
|
>
|
![xmlTree := XMLElement("a", ["colour" = "red"], "some text", XMLElement("b", ["colour" = "blue"], "more text"))](/support/helpjp/helpview.aspx?si=7725/file03433/math118.png)
|
|
![xmlTree := _XML_Element(_XML_ElementType("a"), [_XML_Attribute(_XML_AttrName("colour"), _XML_AttrValue("red"))], [_XML_Text("some text"), _XML_Element(_XML_ElementType("b"), [_XML_Attribute(_XML_AttrName("colour"), _XML_AttrValue("blue"))], [_XML_Text("more text")])])](/support/helpjp/helpview.aspx?si=7725/file03433/math121.png)
| (1) |
|
>
|
|
|
| (2) |
|
>
|
|
|
>
|
|
|
| (3) |
|
|
Download Help Document
Was this information helpful?
