Method and apparatus for creating an index for a structured document based on a stylesheet

• US 6,823,492 B1
• Filed: 02/25/2000
• Issued: 11/23/2004
• Est. Priority Date: 01/06/2000
• Status: Expired due to Term

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Ambroziak, Jacek R.
• Primary Examiner(s): Hong, Stephen S.
• Assistant Examiner(s): SCHLAIFER, JONATHAN D
• Application Number:
  US09/513,439
• Time in Patent Office: 1,733 Days
• Field of Search: 715/513, 715/530, 715/531, 715/501.1, 707/100, 713/1, 379/88.17
• US Class Current: 715/234
• CPC Class Codes: G06F 16/81 Indexing, e.g. XML tags; Data structures therefor; Storage structures

Abstract

One embodiment of the present invention provides a system that generates an index to facilitate searching through text within a document based upon an index stylesheet associated with the document. The system operates by receiving a document to be indexed and then parses the document to produce a parsed document. The system also retrieves instructions for creating the index for the document from an index stylesheet associated with the document. The system creates the index for the document by transforming the parsed document in a manner that is specified by the instructions retrieved from the index stylesheet. In one embodiment of the present invention, retrieving the index stylesheet involves retrieving the index stylesheet across a network from a remote address.

Claims

1. A method for generating an index to facilitate searching through text within a document based upon an index stylesheet associated with the document, the method comprising:

receiving the document to be indexed;

parsing the document to produce a parsed document;

retrieving instructions for creating the index for the document from the index stylesheet associated with the document, wherein the index stylesheet specifies sections of the document to skip in creating the index for the document, wherein the index stylesheet specifies a plurality of tokenizing procedures, and wherein different tokenizing procedures are used to tokenize different portions of the document which require different tokenizing instructions, and

creating the index for the document by transforming the parsed document in a manner that is specified by the instructions retrieved from the index stylesheet.

2. The method of claim 1, wherein retrieving the index stylesheet involves retrieving the index stylesheet across a network from a remote address.

3. The method of claim 1, wherein the index stylesheet is appended to the document.

4. The method of claim 1, further comprising making the index available to a search engine so that the search engine is able to scan through the index.

5. The method of claim 1, wherein the index stylesheet specifies attributes of the document that are to be included in the index.

6. The method of claim 1, further comprising receiving a plurality of additional documents to be indexed and creating indexes for the plurality of additional documents using the index stylesheet.

7. The method of claim 1, wherein creating the index for the document involves tokenizing the document by partitioning text within the document into individual meaning-carrying units of text.

8. The method of claim 1, further comprising prior to receiving the document, downloading and parsing an index configuration file, the index configuration file specifying the index stylesheet to be used in creating the index.

9. The method of claim 1, wherein receiving the document includes receiving the document from a client at an indexing server that creates the index for the client.

10. A computer-readable storage medium storing instructions that when executed by a computer cause the computer to perform a method for generating an index to facilitate searching through text within a document based upon an index stylesheet associated with the document, the method comprising:

receiving the document to be indexed,

parsing the document to produce a parsed document;

retrieving instructions for creating the index for the document from the index stylesheet associated with the document, wherein the index stylesheet specifies sections of the document to skip in creating the index for the document, wherein the index stylesheet specifies a plurality of tokenizing procedures, and wherein different tokenizing procedures are used to tokenize different portions of the document which require different tokenizing instructions;

and creating the index for the document by transforming the parsed document in a manner that is specified by the instructions retrieved from the index stylesheet.

11. The computer-readable storage medium of claim 10, wherein retrieving the index stylesheet involves retrieving the index stylesheet across a network from a remote address.

12. The computer-readable storage medium of claim 10, wherein the index stylesheet is appended to the document.

13. The computer-readable storage medium of claim 10, wherein the method further comprises making the index available to a search engine so that the search engine is able to scan through the index.

14. The computer-readable storage medium of claim 10, wherein the index stylesheet specifies attributes of the document that are to be included in the index.

15. The computer-readable storage medium of claim 10, wherein the method further comprises receiving a plurality of additional documents to be indexed and creating indexes for the plurality of additional documents using the index stylesheet.

16. The computer-readable storage medium of claim 10, wherein creating the index for the document involves tokenizing the document by partitioning text within the document into individual meaning-carrying units of text.

17. The computer-readable storage medium of claim 10, wherein the method further comprises, prior to receiving the document, downloading and parsing an index configuration file, the index configuration file specifying the index stylesheet to be used in creating the index.

18. The computer-readable storage medium of claim 10, wherein the document is received from a client at an indexing server that creates the index for the client.

19. An apparatus for generating an index to facilitate searching through text within a document based upon an index stylesheet associated with the document, the apparatus comprising:

a receiving mechanism that is configured to receive the document to be indexed;

a parser that is configured to parse the document to produce a parsed document;

a stylesheet retrieving mechanism that is configured to retrieve instructions for creating the index for the document from the index stylesheet associated with the document, wherein the index stylesheet specifies sections of the document to skip in creating the index for the document, wherein the index stylesheet specifies a plurality of tokenizing procedures, and wherein different tokenizing procedures are used to tokenize different portions of the document which require different tokenizing instructions;

and an index creation mechanism that is configured to create the index for the document by transforming the parsed document in a manner that is specified by the instructions retrieved from the index stylesheet.

20. The apparatus of claim 19, wherein the stylesheet retrieving mechanism is configured to retrieve the index stylesheet across a network from a remote address.

21. The apparatus of claim 19, wherein the index stylesheet is appended to the document.

22. The apparatus of claim 19, further comprising an access mechanism that is configured to make the index accessible to a search engine so that the search engine is able to scan through the index.

23. The apparatus of claim 19, wherein the index stylesheet specifies attributes of the document that are to be included in the index.

24. The apparatus of claim 19, wherein the receiving mechanism is configured to receive a plurality of additional documents to be indexed, and wherein the index creation mechanism is configured to creates index for the plurality of additional documents using the index stylesheet.

25. The apparatus of claim 19, wherein the index creation mechanism is configured to create the index for the document by partitioning text within the document into tokens containing individual meaning-carrying units of text.

26. The apparatus of claim 19, further comprising an index configuration mechanism that is configured to download and parse an index configuration file, the index configuration file specifying the index stylesheet to be used in creating the index.

27. The apparatus of claim 19, wherein the apparatus is contained with an indexing server that creates the index for a client.