Expression grouping and evaluation
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United States of America Patent
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Oct 14, 2008
Grant Date -
Apr 28, 2005
app pub date -
Jul 12, 2004
filing date -
Oct 22, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus comprises a stylesheet compiler and a document processor. The stylesheet compiler is configured to identify expressions in a stylesheet and is configured to generate one or more expression trees representing the expressions. Expressions having one or more common nodes are represented as children of a subtree that represents the common nodes. Coupled to receive a document and the expression tree, the document processor is configured to evaluate the expressions represented in the one or more expression trees against the document.
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