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XMLTools[IsTree] - determine if an expression is an XML tree data structure
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Calling Sequence
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IsTree(expr)
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Parameters
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expr
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anything; expression to test
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Description
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The IsTree(expr) command tests whether a Maple expression expr is an XML tree data structure. If expr is an XML tree data structure, the value true is returned. Otherwise, false is returned.
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Note: A full recursive traversal of the input is performed, so this is an extremely expensive test.
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