System for synthesizing plurality of source programs by combining syntax elements and conditions of the programs

• US 5,117,497 A
• Filed: 07/29/1988
• Issued: 05/26/1992
• Est. Priority Date: 09/18/1987
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Kanamori, Yoshimasa, Imaizumi, Kazuhiko
• Primary Examiner(s): Lee, Thomas C.
• Assistant Examiner(s): Mohamed, Ayni
• Application Number:
  US07/225,822
• Time in Patent Office: 1,397 Days
• Field of Search: 364/200 MS File, 364/900 MS File
• US Class Current: 717/143
• CPC Class Codes: G06F 8/33 Intelligent editors

Abstract

In order to add a program synthesis function in a unit of a syntax element of a source program to a structured editor having a syntax, there is disposed a synthesis condition list keeping a source program specify portion and priority information between source programs. In a synthesize section combining syntax parse trees, a search operation is carried out for the respective syntax elements based on the priority information supplied for each frame, slot, or method of the source program, thereby synthesizing a new syntax parse tree.

Claims

1. A program synthesize method of synthesizing source programs by combining a plurality of programs in a structured editor effecting a syntactical analysis on source programs in conformity with a syntax so as to generate syntax parse trees, comprising the steps, being performed on a computer, of:

specifying a synthesis condition on at least two programs;

synthesizing a source program by combining said at least two programs wherein syntax elements are selected from said at least two programs based on said synthesis condition; and

executing, after a synthesizing step is completed on syntax elements of one of said at least two programs assigned with a higher priority level based on said synthesis condition, a step for synthesizing remaining syntax elements of the other one of said at least two programs.

2. A program synthesize method of synthesizing source programs by combining a plurality of programs in a structured editor effecting asyntactical analysis on source programs in conformity with a syntax so as to generate syntax parse trees, comprising the steps, being performed on a computer, of:

specifying a synthesis condition on at least two programs;

synthesizing a source program by combining said at least two programs wherein syntax elements are selected from said at least two programs based on said synthesis condition; and

outputting, after a step for synthesizing is completed for syntax elements of one of said at least two programs assigned with a higher priority level based on said synthesis condition, a synthesis result so as to complete a program synthesis from a plurality of programs.

3. A program synthesize method of synthesizing source programs by combining a plurality of programs in a structured editor effecting a syntactical analysis on source programs in conformity with a syntax so as to generate syntax parse trees, comprising the steps, being performed on a computer, of:

specifying a synthesis condition on at least two programs; and

synthesizing a source program by combining said at least two programs wherein syntax elements are selected from said at least two programs based on said synthesis condition;

wherein said synthesis condition includes priority level information corresponding to said syntax elements selected from said at least two programs.