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US5481711A
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Program editing system
Assignee: NEC Corp
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Filing: 1993-01-07
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Granted: 1996-01-02
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Expires: 2013-01-07
Abstract
Abstract The present invention relates to a system for readily editing a text data program lexically and structurally. A first conversion is carried out such that the text data program is converted into a structure-type data internal representation by using the grammar rules of the program and the internal representation definition which defines the data structure of a structure-type data internal representation. The structure-type data internal representation has the structure information of the program as the structure-type data. This structure-type data internal representation is edited according to given editing instructions. By using the grammar rules of the program and the internal representation definition, a second conversion is carried out such that the edited structure-type data internal representation is converted into the corresponding text data program.
Inventors
- 👤 Yoshikazu Sotani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:30
CPC Classifications
G; G06; G06F; G06F40/00; G06F40/10; G06F40/166
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
203 words
A system for editing a first text data program written in a programming language having a plurality of grammar rules, said system comprising: first storage means for storing said plurality of grammar rules; second storage means for storing an internal representation definition defining a designated tree structure; conversion code generating means for generating a conversion code based on said plurality of grammar rules and on said internal representation definition, said conversion code including a directional conversion code for converting said first text data program to a first structure-type data internal representation program having said designated tree structure; and a reverse-directional conversion code for converting a second structure-type data internal representation program to a second text data program; third storage means for storing said first and second structure-type data internal representation programs; editing means for editing said first structure-type data internal representation program stored in said third storage means to produce said second structure-type data internal representation program; and execution control means for executing said directional conversion code when said first text data program is provided to said execution control means, and for executing said reverse-directional conversion code when said second structure-type data internal representation program has been provided to said execution control means.
Claim 2
Independent Claim
203 words
A system for editing a first text data program written in a programming language having a plurality of grammar rules, said system comprising: first storage means for storing said plurality of grammar rules; second storage means for storing an internal representation definition defining a designated tree structure; conversion code generating means for generating a conversion code based on said plurality of grammar rules and on said internal representation definition, said conversion code including a directional conversion code for converting said first text data program to a first structure-type data internal representation program having said designated tree structure; and a reverse-directional conversion code for converting a second structure-type data internal representation program to a second text data program; third storage means for storing said first and second structure-type data internal representation programs; editing means for editing said first structure-type data internal representation program stored in said third storage means to produce said second structure-type data internal representation program; and execution control means for executing said directional conversion code when said first text data program is provided to said execution control means, and for executing said reverse-directional conversion code when said second structure-type data internal representation program has been provided to said execution control means.
Claim 3
Dependent Claim
18 words
The system as set forth in claim 1, wherein said first text data program comprises a YACC program.
Claim 4
Independent Claim
186 words
A method for editing a first text data program written in a programming language having a plurality of grammar rules, said method comprising the steps of: (a) storing said plurality of grammar rules; (b) storing an internal representation definition defining a designated tree structure; (c) generating a conversion code based on said plurality of grammar rules and said internal representation definition, said conversion code including a directional conversion code for converting said first text data program to a first structure-type data internal representation program having said designated tree structure and a reverse-directional conversion code for converting a second structure-type data internal representation program to a second text data program; (d) executing said directional conversion code to convert said first text data program to said first structure-type data internal representation program; (e) editing said first structure-type data internal representation program which has been generated by executing said directional conversion code in step (d) to produce said second structure-type data internal representation program; and (f) executing said reverse-directional conversion code to convert said second structure-type data internal representation program from step (e) into said second text data program.
Claim 5
Independent Claim
186 words
A method for editing a first text data program written in a programming language having a plurality of grammar rules, said method comprising the steps of: (a) storing said plurality of grammar rules; (b) storing an internal representation definition defining a designated tree structure; (c) generating a conversion code based on said plurality of grammar rules and said internal representation definition, said conversion code including a directional conversion code for converting said first text data program to a first structure-type data internal representation program having said designated tree structure and a reverse-directional conversion code for converting a second structure-type data internal representation program to a second text data program; (d) executing said directional conversion code to convert said first text data program to said first structure-type data internal representation program; (e) editing said first structure-type data internal representation program which has been generated by executing said directional conversion code in step (d) to produce said second structure-type data internal representation program; and (f) executing said reverse-directional conversion code to convert said second structure-type data internal representation program from step (e) into said second text data program.
Claim 6
Dependent Claim
49 words
The method as set forth in claim 3, wherein step (c) comprises the steps of: reading said grammar rules; generating conversion routines corresponding to each of said grammar rules according to said internal representation definition; and linking conversion routines respectively corresponding to said grammar rules to generate conversion code.
Claim 7
Dependent Claim
18 words
The method as set forth in claim 3, wherein said first text data program comprises a YACC program.
Claim 8
Dependent Claim
18 words
The method as set forth in claim 4, wherein said first text data program comprises a YACC program.
References Cited (Backward Citations)
US5276880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-01-01 | 1999-07-03 | 2000-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-01 | 2003-07-03 | 2004-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-01 | 2007-07-03 | 2008-01-02 | $7700.00 | Window Closed / Lapsed |