JPH07120285B2 - How to use the syntax checker and text editor - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of linking a syntax checker and a text editor, and more particularly to a method of pulling a syntax check result of the syntax checker into a text editor.

[Background of the Invention]

Conventionally, when debugging a source program using a syntax checker and a text editor, the syntax checker inputs the source program and outputs the result of the syntax check in a human-readable form such as a syntax check result list. The operator operates the text editor while looking at the syntax check result list, and the text editor performs all the editing processing in accordance with the command input by the operator for debugging.
Therefore, the operator has to simultaneously perform the work of viewing the syntax check result list and the work of operating the text editor in accordance with the syntax check result list, which imposes a heavy burden on the operator.

[Object of the Invention]

The purpose of the present invention is to check the syntax of the source program,
The text editor automatically displays the location and type of the error without the operator having to look at the syntax check result list, and the syntax checker and the text editor work together so that the operator can easily correct the error.

[Outline of Invention]

The gist of the present invention is that the syntax checker can output the syntax check result not only in a human-readable form but also in the form of intermediate code that can be input by a text editor, and the text editor can input this intermediate code and move the cursor to the error location. Is positioned so that the area around the error location and the error message are displayed on the screen so that the error can be corrected immediately.

Example of Invention

FIG. 2 shows a system configuration of a microcomputer system embodying the present invention. The central processing unit 1 loads and executes a program such as a syntax checker or a text editor. The keyboard 2 is used when the operator inputs commands and data to the central processing unit 1. The display device 3 and the printer 4 output the processing result of the central processing unit 1 and use it for inquiries with the operator. The floppy disk 5 is used for storing and storing programs and data. In this system, the program is usually stored on the floppy disk 5, and if necessary, the central processing unit 1
Loaded on top and executed.

FIG. 1 shows a data flow for realizing the present invention. Hereinafter, the present invention will be described in detail with reference to FIGS. 1 and 2.

When the operator inputs a command to start the syntax checker from the keyboard 2, the syntax checker program is loaded from the floppy disk 5 into the central processing unit 1 and executed. The syntax checker 7 inputs the source program 6 to be syntax checked from the floppy disk 5 and outputs the syntax check result to the printer 4 as a syntax check result list 8 in a human-readable form. You can also input the syntax check result intermediate code file 9 to a floppy disk 5 in a format that can also be input to a text editor.
Also output to.

After the execution of the syntax checker, when the operator inputs a command for starting the text editor from the keyboard 2, the syntax checker program is deleted from the central processing unit 1, and instead the text editor program is centrally processed from the floppy disk 5. The device 1 is loaded and executed.

The text editor 10 inputs the source program 6 whose syntax check has been completed from the floppy disk 5, and the input source program can be freely changed by inputting from the keyboard 2. When the interlocking process command 11 is input from the keyboard 2, the text editor 10 inputs the syntax check result intermediate code file 9 from the floppy disk 5, displays the error message 12 on the display device 3, and displays the syntax error location of the source program. The area around is displayed on the screen and the cursor is positioned at the error location. This allows the operator to know the location and type of syntax error and also to correct the error on the spot. When correction of the displayed syntax error is completed, the linked processing command 11 is again sent from the keyboard 2.
Then, the error message 12 of the next syntax error is displayed on the display device 3, the area around the new syntax error position of the source program is displayed on the display device 3, the cursor is positioned at the error position, and the error is corrected. It will be possible. By repeating this process until the final syntax error, all syntax errors can be corrected.
Finally, the modified source file 13 is stored again in the floppy disk 5.

FIG. 3 is a structural diagram of a syntax checker for implementing the present invention. The syntax checker is composed of an input device 14 for inputting a source file for syntax check, a parser 15 for syntax check, and an output device 16 for outputting the result of syntax check. The output device 16 includes not only the syntax check result list output device 17 but also a syntax check result intermediate code file output device 18 for implementing the present invention. Note that these are actually constructed using the system of FIG.

FIG. 4 is an example of a file format of the syntax check result intermediate code file 9 adopted in the present invention. This is a fixed length format of 4 bytes per record, 19 is the line number (2 bytes) of the source program where the syntax error occurred, 20 is the column position (1 byte) where the syntax error occurred, and 21 is the message of the syntax error. It is a number (1 byte).

FIG. 5 is a structural diagram of a text editor for implementing the present invention, which is actually constructed using the system of FIG. The command is input by the command input device 22, analyzed by the command analysis device 23, and executed by the command execution device 24. The interlocked process command is executed by the interlocked process command execution device 25 included in the command processing device 24. The linked processing command execution device 25 includes a syntax check result intermediate code file input device 26 and an error message display device 27 that displays a syntax error message.
And a screen display position determining device 28 for displaying the source program around the syntax error location and a cursor position setting device 29 for setting the cursor at the error location.

FIG. 6 shows an algorithm of the process of the linked process command execution device 25 in FIG. That is, a command is input from the command input device 22 and the command analysis device 23
Is analyzed, and if it is a linked processing command, the linked processing command execution device 25 is activated. Then first,
Syntax check result intermediate code file input device of FIG.
The control is passed to 26, and the file is opened, the record is read, etc. depending on the state of the intermediate code file. Then, the error message display device 2 of FIG.
7, screen display position determination device 28, cursor position setting device 29
Sequential control is passed to, the error message is displayed, the source program around the error location is displayed, and the cursor is positioned at the error location.

〔The invention's effect〕

According to the present invention, after syntax checking the source program,
The syntax check result is output to a file not only in a human-readable format but also in the form of an intermediate code that can be input / processed by a text editor, and is sent to a text editor so that the operator can view the text without checking the syntax check result list. As a result of the editor automatically positioning the cursor to the error location and displaying error messages,
Since the error can be corrected on the spot, there is an effect that the syntax check result list is unnecessary and the burden on the operator at the time of correcting the syntax error is significantly reduced.

Further, by outputting the syntax check result of the source program to the file in the intermediate code format, the user can use the syntax check file in the intermediate code format to make corrections at any time. It also allows for flexible use that can be modified at a later date.

[Brief description of drawings]

1 is a diagram showing a data flow according to the present invention, FIG. 2 is a configuration diagram of a microcomputer system for implementing the present invention, FIG. 3 is a structural diagram of the syntax checker of FIG. 1, and FIG. 4 is a syntax check result. FIG. 5 is a diagram showing the internal format of the intermediate code file, FIG. 5 is a structural diagram of the text editor of FIG. 1, and FIG. 6 is a diagram showing an algorithm of the process of the interlocked process command execution device of FIG. 6 ... Source program, 7 ... Syntax checker, 8 ...
… Syntax check result list, 9 …… Syntax check result intermediate file, 10 …… Text editor, 12 …… Error message display.

Continuation of the front page (56) Reference JP-A-56-110144 (JP, A) JP-A-59-11448 (JP, A) JP-A-59-22140 (JP, A) JP-A-57-100544 (JP , A) JP 59-83248 (JP, A)

Claims (1)

[Claims] 1. A method of interlocking a syntax checker for inputting a source program, performing a syntax check, and outputting the result, and a text editor for correcting a source program, wherein the syntax checker displays the result of the syntax check. The text editor outputs to a file in an intermediate code format that can be input / processed, and the text editor inputs the syntax check result of the intermediate code format from the file to position the cursor at an error location and display an error message. The method of interlocking a syntax checker and a text editor characterized by that.