JPH0561665A - Source program correcting system - Google Patents

Abstract

PURPOSE:To correct a source program while debugging the source program by a debugger. CONSTITUTION:When correction is instructed from a keyboard in the debugger 10 capable of temporarily correcting the source program, a source information registering means 6 works a correcting image based upon the correcting image and command information and stores a correcting source image in a line number/source image storing area 13. If a source correction request is generated at the end of debugging, a source correcting means 8 retrieves a line number in the source program which corresponds to the stored line number and rewrites a source image on the line in the source program into the stored source image.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a source program modification method, and more particularly to a source program modification method for animating an image of a source program written in a computer programming language on a screen of a terminal.

[0002]

2. Description of the Related Art Conventionally, a source program written in a computer programming language has been modified by debugging the source program with a debugger and then activating an editor.

[0003]

In the above-mentioned conventional source program modification method, even if the debugger is started and the modified source image is input from the keyboard for debugging, no modification is made on the source program. Since it does not exist, record the modified source image input from the keyboard during debugging by a method such as writing on paper,
There was a problem that when the editor was started up, the recorded modified source image had to be input again from the keyboard.

[0004]

The method of the present invention is a source program modification method in which an image of a source program described in a computer programming language is animated on the screen of a terminal when a modification is instructed from a keyboard. Source information registration means to save the corresponding line number on the source program to be modified and the source image after modification by the modification instruction, and to specify whether or not to modify the source when the debugger ends, and specify the source modification In case of, the line number on the source program corresponding to the line number saved by the source information registration means is searched,
It has a source correction means for rewriting the source image of the line on the source program to the stored source image and correcting the source program.

[0005]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a structural diagram showing the flow of operation of an embodiment of the present invention. A source program 1, a compiler 2, an intermediate text 3 for a debugger, a debugger 10,
It is composed of a source modification command 11, a modified image 12, a line number / source image storage area 13, and a modified source program 14.

Further, the debugger 10 includes an initial processing section 4
And a user program execution processing unit 7 including the corrected source image input unit 5 and the source information registration unit 6, and an end processing unit 9 including the source correction unit 8.

The compiler 2 inputs the source program 1 and outputs a debugger intermediate text 3. The debugger 10 inputs the debugger intermediate text 3 and the source program 1 and activates the initial processing unit 4.

After the initial processing for starting the debugger is completed in the initial processing section 4, the user program execution processing section 7 is started and the image of the source program is animated on the screen of the terminal to confirm the operation.

When the source image needs to be corrected during operation confirmation and the source correction command 11 is input from the keyboard, the corrected image input means 5 outputs a corrected image input request on the screen and the corrected image 12 is input from the keyboard. Is input, the source information registration means 6 processes the modified image 12 and stores the line number and the source image in the line number / source image storage area 13.

When the termination processing section 9 is started after the debugging by the debugger is completed, the source modification means 8 causes the debugger user to specify whether or not to modify the source, and if there is a source modification request, the line number / Source image storage area 13
To search for the line number in the source program corresponding to the line number stored in the line number / source image storage area 13 and to find the source image of that line number in line number /
The modified source program 14 is generated by rewriting the source image in the source image storage area 13, and the termination processing unit 9 is terminated.

FIG. 2 is a diagram specifically showing an example of modification of the source program according to the present invention. When it is found that an initial value needs to be set in the data while debugging the source program 201. By inputting the initial value setting command 202 of the source correction command, the correction source image input means 5 outputs the command information 204 having the command type 203, and outputs the correction image input request on the screen.

When the modified image 205 is input from the keyboard in response to the modified image input request output on the screen, the source information registration means 6 acquires the modified image 205 and the command information 204 and processes the modified image 205. Then, the modified source image 206 is generated and output to the line number / source image storage area 13.

The source modification means 8 modifies the source program based on the modified source image 206 output to the line number / source image storage area 13 by the source information registration means 6, and the modified source program 20.
7 is generated.

FIG. 3 is a diagram showing in detail the processing flow of the source information registration means 6, and the source information registration means 6 is
After acquiring 301 of the corrected image, 302 of command information is acquired, and it is determined whether the command type is insertion 3
As a result of 03, if it is an insertion, a modified source image is generated and P is stored in the line number / source image storage area 13.
UT 308 is performed and the process ends.

Judgment whether command type is insertion 30
As a result of step 3, if it is not the insertion, one record GET 304 is performed from the input source program, it is judged 305 whether the end of the input source has been reached, and if it is the end of the input source, the processing is ended.

Determining if the end of the input source has been reached 30
As a result of 5, if the end of the input source is not reached,
A judgment 306 is made as to whether the PUT record is the correction target source. If the PUT record is the correction target source, the correction source image 12 is generated, PUT 307 to the line number / source image storage area 13, and input source again. Record GET from program 1 and process until the end of the input source is reached.

FIG. 4 is a diagram showing in detail the processing flow of the source correction means 8. The source correction means 8 determines 301 whether there is a source correction request by specifying an option,
If there is a source correction request, the correction source images stored in the line number / source image storage area 13 are sorted in the order of line numbers while the correction source image input later is valid if the same line number exists. 302 Then, as an initialization process, the input source program GET unnecessary flag is turned OFF 303, one record is acquired 304 from the line number / source image storage area 13, and it is determined 305 whether the end of the storage area is reached.

When the end of the storage area is reached, the PUT 315 is sequentially performed on the temporary file until the end of the input source program, the input source program file is replaced 317 with the contents of the temporary file, and the process is ended.

Determining whether the end of the storage area has been reached 305
As a result, if the end is not reached, it is judged whether the input source program GET unnecessary flag is ON 30
6 and if the GET unnecessary flag is ON, the size of the line number of the input source program and the line number acquired from the line number / source image storage area 13 is determined without performing the record GET from the input source program. Take 309.

When the input source program GET unnecessary flag is OFF, 1 record GET 307 from the input source program is made and it is judged 308 whether the end of the input source is reached. When the end of the input source is reached, the PUT 316 is sequentially performed to the temporary file until the end of the line number / source image storage area 13, the input source program file is replaced 317 with the contents of the temporary file, and the process is ended.

Determining if the end of the input source has been reached 30
If it is not the end of the input source according to 8, the size 309 of the line number of the input source program and the line number acquired from the line number / source image storage area 13 is determined.

Line number of input source program and line number /
If the line number of the input source program is smaller than the line number acquired from the source image storage area 13 according to the determination 309, the PUT 310 for one record of the input source program to the temporary file is performed, and the line number / source If the line number acquired from the image storage area 13 is larger or the line number of the input source program and the line number / line number acquired from the source image storage area 13 match, one of the storage areas in the temporary file is set. Perform PUT 311 for the record and again enter the line number of the input source program and the line number / source image storage area 1
The size of the line number acquired from 3 is judged 312.

The line number of the input source program is line number /
If it is larger than the line number acquired from the source image storage area 13, the input source program GET unnecessary flag is turned on 313, and the line number of the input source program matches the line number / line number acquired from the source image storage area 13. In this case, the input source program GET unnecessary flag is turned off 314, and the processing is performed until the end of the input source or the end of the storage area is reached.

[0025]

As described above, the present invention saves the modified source image input from the keyboard when the debugger dehags and modifies the source program by the ending source image saved when the debugger ends to debug. This has the effect of eliminating the need to start the editor and input the modified source image input to the editor again.

[Brief description of drawings]

FIG. 1 is a structural diagram showing a flow of operations of an embodiment of the present invention.

FIG. 2 is a diagram specifically showing an example of modification of a source program according to the present invention.

FIG. 3 is a diagram showing a processing flow of a source information registration unit that is a component of the present invention.

FIG. 4 is a diagram showing a processing flow of a source correction means which is a constituent element of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 source program 2 compiler 3 intermediate text for debugger 4 initial processing section 5 modified source image input means 6 source information registration means 7 user program execution processing section 8 source modification means 9 termination processing section 10 debugger 11 source modification command 12 modified image 13 lines Number / Source image storage area 14 Source program after modification

Claims (1)

[Claims] 1. A source program modification method for animating an image of a source program described in a computer programming language on a screen of a terminal, which corresponds to the modification of the source program when a modification is instructed from a keyboard. Source information registration means to save the line number and the source image after modification by the modification instruction, and let the user specify whether to modify the source when the debugger ends,
When the source correction is designated, the line number on the source program corresponding to the line number saved by the source information registration means is searched, and the source image of the line on the source program is rewritten to the saved source image. ,
A source program modifying method, comprising: a source modifying means for modifying a source program.