| 摘要 |
The invention concerns a method of evaluating an expression on items of a structured document, an expression comprising a set of elementary sub-expressions, that comprises the following prior steps: generating, from the expression, all the target nodes ( 920 ) corresponding to items to be sought in the structured document; generating a logical representation ( 930 ) of the expression, a logical representation comprising a set of nodes, representing the elementary sub-expressions of the expression, linked according to the relationships between these elementary sub-expressions; a step of evaluating the expression on items of the structured document from all the target nodes generated and the logical representation generated.
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