| 摘要 |
A method, program, and apparatus for providing a description of current position in an electronic document are provided. The invention first comprises parsing the electronic document into a parse tree. When the system receives a command from the user requesting current position in the electronic document, an algorithm performs a walk up the parse tree, from the current position to the root of the document. A position response, containing nodes in the walk up the parse tree, is constructed by the algorithm and reported to the user.
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