Methods and systems for extracting information from computer code

• US 7,779,398 B2
• Filed: 06/08/2005
• Issued: 08/17/2010
• Est. Priority Date: 06/08/2005
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Bettadapur, Prakash, Tjong, Jung
• Primary Examiner(s): Sough; Hyung S
• Assistant Examiner(s): JORDAN, KIMBERLY L
• Application Number:
  US11/149,052
• Publication Number:
  US 20070006196A1
• Time in Patent Office: 1,896 Days
• Field of Search: 717/114, 717141-144, 717/153
• US Class Current: 717/143
• CPC Class Codes: G06F 8/51 Source to source

Abstract

Methods and systems for manipulating information represented by computer code are described. Macroinstructions that are used to analyze an input are accessed. The macroinstructions are written according to a first computer system language. The macroinstructions are rewritten as strings according to a second computer system language. The strings are included in an exportable representation.

Claims

1. A method comprising:

extracting, with a preprocessor in a computer system, macroinstructions that are hard-coded into parser code of a command line interface (CLI) parser, wherein the macroinstructions define a proper CLI syntax for CLI commands input to a CLI prompt and include parse nodes used by the CLI parser to analyze whether one or more CLI commands input to the CLI prompt have proper CLI syntax, and wherein the macroinstructions are written according to a first computer system language;

converting, with the preprocessor, the macroinstructions into at least one parse graph having an Extensible Markup Language (XML) format, wherein the converting includes encapsulating the parse nodes of the macroinstructions with XML tags and stitching together the encapsulated parse nodes of the macroinstructions to generate the parse graph, and wherein the first computer system language is different than an Extensible Markup Language (XML) language associated with the parse graph; and

generating, with the preprocessor, an exportable representation of the at least one parse graph and outputting the exportable representation of the at least one parse graph from the computer system.

2. The method of claim 1 wherein the extracting of macroinstructions includes extracting information explicitly within the macroinstructions and other information pointed to in the parser code by the macroinstructions, and wherein the converting of the macroinstructions further includes encapsulating the information pointed to in the parser code by the macro instructions with XML tags for inclusion in the parse graph.

3. The method of claim 1 wherein the exportable representation of the parse graph includes a textual version of the parse graph or a summary report.

4. The method of claim 1 wherein the converting further comprises associating Extensible Markup Language tags with elements of the macroinstructions.

5. The method of claim 1 further comprising identifying elements associated with the macroinstructions that are pointed to but not conspicuously named in the macroinstructions.

6. The method of claim 1 wherein the first computer language is C, and the exportable representation is an XML document.

7. A computer-usable storage medium having computer-readable program code embodied therein configured to cause a computer system to:

extract, with a preprocessor in the computer system, macroinstructions that are hard-coded into parser code of a command line interface (CLI) parser, wherein the macroinstructions define a proper CLI syntax for CLI commands input to a CLI prompt and include parse nodes used by the CLI parser to analyze whether one or more CLI commands input to the CLI prompt have proper CLI syntax, and wherein the macroinstructions are written according to a first computer system language;

convert, with the preprocessor, the macroinstructions into at least one parse graph having an Extensible Markup Language (XML) format, wherein the computer system is configured to convert the macroinstructions by encapsulating the parse nodes of the macroinstructions with XML tags and by stitching together the encapsulated parse nodes of the macroinstructions to generate the parse graph, and wherein the first computer system language is different than an Extensible Markup Language (XML) language associated with the parse graph; and

generate, with the preprocessor, an exportable representation of the at least one parse graph and output the exportable representation of the at least one parse graph from the computer system.

8. The computer-usable medium of claim 7 wherein the computer system is configured to:

extract information explicitly within the macroinstructions and other information pointed to in the parser code by the macroinstructions, and

encapsulate the information pointed to in the parser code by the macroinstructions with XML tags for inclusion in the parse graph.

9. The computer-usable medium of claim 7 wherein the exportable representation of the parse graph includes a textual version of the parse graph or a summary report.

10. The computer-usable medium of claim 7 wherein the converting further comprises associating Extensible Markup Language tags with elements of the macroinstructions.

11. The computer-usable medium of claim 7 wherein the computer system is configured to identify elements associated with the macroinstructions that are pointed to but not conspicuously named in the macroinstructions.

12. The computer-usable medium of claim 7 wherein the first computer language is C, and the exportable representation is an XML document.

13. A system comprising:

means for extracting, with a preprocessor in a computer system, macroinstructions that are hard-coded into parser code of a command line interface (CLI) parser, wherein the macroinstructions define a proper CLI syntax for CLI commands input to a CLI prompt and include parse nodes used by the CLI parser to analyze whether one or more CLI commands input to the CLI prompt have proper CLI syntax, and wherein the macroinstructions are written according to a first computer system language;

means for converting, with the preprocessor, the macroinstructions into at least one parse graph having an Extensible Markup Language (XML) format, wherein the means for converting includes means for encapsulating the parse nodes of the macroinstructions with XML tags and means for stitching together the encapsulated parse nodes of the macroinstructions to generate the parse graph, and wherein the first computer system language is different than an Extensible Markup Language (XML) language associated with the parse graph; and

means for generating, with the preprocessor, an exportable representation of the at least one parse graph and outputting the exportable representation of the at least one parse graph from the computer system.

14. The system of claim 13 wherein the means for extracting macroinstructions is configured to extract information explicitly within the macroinstructions and other information pointed to in the parser code by the macroinstructions, and wherein the means for encapsulating is configured to encapsulate the information pointed to in the parser code by the macro instructions with XML tags for inclusion in the parse graph.

15. The system of claim 13 wherein the exportable representation of the parse graph includes a textual version of the parse graph or a summary report.

16. The system of claim 13 further comprising means for associating Extensible Markup Language tags with elements of the macroinstructions.

17. The system of claim 13 further comprising means for identifying elements associated with the macroinstructions that are pointed to but not conspicuously named in the macroinstructions.

18. The system of claim 13 wherein the first computer language is C, and the exportable representation is an XML document.