JPH11353162A - Program correction result comparing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily judge whether or not corrected contents are correct and to easily perform secure correcting operation by registering the contents of the correcting operation in advance and displaying a difference result the contents before and after the correction according to the registered correction contents after a program is corrected. SOLUTION: An arithmetic processor 105 previously defines correction contents before the program is corrected. Then definitions of correction contents inputted from a user are inputted. In response to the user's indications, a comparison result and a place of correction content discrepancy are displayed on a display device 101 to make an inquiry about whether or not the program has been corrected correctly. After the user defines the correction contents, the program is actually corrected. After the correcting operation, the programs before and after the correcting operation are compared this time and the user is inquired of on the display device 101 about whether or not the correcting operation is done correctly. According to a user's answer, it is determined whether or not the corrections are actually reflected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for interactively inquiring a user as to whether or not a correction has been made correctly after checking the correctness of the correction with software. And a method for comparing program modification results of a software development support tool based thereon.

[0002]

2. Description of the Related Art In a conventional software development work based on a text editing tool, a method of inputting a part of a program or data as a character string from a keyboard and constructing the entire software is employed. In this case, many tools for inputting a character string have a text editing function, which is a so-called editor. When a program is developed using such an editor, a work form in which the program is corrected and expanded in a sequential manner is often used as the functional specifications of the software are determined in detail. In the development of the program using the text editor function and the confirmation of the modification contents after the modification work, the validity of the modification work is determined by comparing the program and data before and after the modification, and the software development work is performed. It will be recorded as management information. As a method of checking the correction result, the text file of the program before and after the correction was compared and collated line by line, and a correction portion was detected by searching for a portion where the character strings of the lines did not match.

However, in this method, the process of correcting the program is separated from the change of the functional specification, and it is not known whether the corrected content corresponds to the change of the functional specification. Therefore, as disclosed in Japanese Patent Application Laid-Open No. 8-115210, a technique for managing the correspondence between a specification and a program and displaying a corresponding portion of the program when the specification is changed has been disclosed. I have.

[0004]

However, according to the above-mentioned prior art, although the changed portion of the program due to the change of the specification is known, it cannot be confirmed whether or not the process of correcting the program corresponds to the change of the specification. Also, if it is necessary to make corrections based on a certain policy throughout the program, it is necessary to examine the collation results of each line and the entire program before and after the correction in order to confirm the validity of the correction results. there were.

SUMMARY OF THE INVENTION An object of the present invention is to define a correction content in an expression format instructing the content of the correction in correspondence with the program syntax in order to ensure confirmation of the correction result after the correction work.
It is an object of the present invention to provide a software development tool having a function of comparing this definition with the actual contents of correction and further prompting a user to determine whether the correction is correct as a result of the comparison.

[0006]

In order to achieve the above object, in a software development tool according to the present invention, a change operation is defined by syntax information of a program and a syntax pattern before and after correction, and a program before and after the correction operation is defined. Analyzes the syntax, compares the pre-correction syntax pattern of the pre-defined modification work with the pre-correction program syntax analysis result, and obtains the post-correction program syntax analysis result corresponding to the location where the comparison result matches. Then, it checks whether or not the pre-defined modification work matches the modified syntax pattern, and prompts the user to confirm the modification work based on the comparison result with the modified syntax pattern.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a program editing system according to one embodiment of the present invention will be described. In this embodiment, in particular, the software developer uses an apparatus having a graphic screen and a pointing device such as a mouse,
A configuration and operation when the present invention is used in an operation of modifying software under development while reflecting design specifications when interactively developing a program will be described.

FIG. 1 shows a configuration of a program editing system which realizes a program correction result comparison function according to the present invention. The arithmetic processing unit 105 includes a correction definition information analysis unit 105b, an input unit 105c, and an image data output unit 1.
05d, a development program input / output unit 105f, a modification definition information DB input / output unit 105h, and a modification result analysis unit 105i. The image data storage device 103 stores the image data output from the image data output unit 105d of the arithmetic processing unit 105, that is, the character data as the display contents of the program, the processing results of the correction definition information analysis unit 105b, and the correction result analysis unit 105i. Based on the menu display, and character data as a result of comparing the program modifications. The image display control device 102 reads character data and menu data to be displayed from the image data storage device 103, and displays characters and images on the display device 101 as images.

In the arithmetic processing unit 105, an input unit 105c
Receives a key input or a pointing input from the input device 104 such as a mouse or a keyboard. First, the development program is edited based on the information input by the software developer using the input device 104, the results are displayed as a list on the display device as character data, and further stored in the development software storage DB. Next, before the modification work of this program is performed, the modification work is defined. At this time, the modification definition information analysis unit 105
b, the definition information is analyzed, and the modified definition information DB input / output unit 1
The definition information is stored in the modification definition information storage DB 107 via the interface 05h. On the other hand, when the program is edited / modified, the edited contents of the program are stored in the development software storage DB 106 via the development program input / output unit 105f.
Further, upon receiving the correction result confirmation instruction, the correction result analysis unit 105
At i, the modification definition information is compared with the program modification contents. The display of windows, the display of characters, and the like that occur in the course of the above processing are performed via the image data output unit 105d.

The arithmetic processing unit 105 first displays a check condition definition window shown in FIG. 2 in synchronization with the editing menu function of the editing system in order to define the contents of the correction before the program is corrected. Next, in the displayed check condition definition window, the definition of the correction content input by the user is fetched. Then, in response to the user's instruction, an inquiry as to whether or not the correction processing of the program is correct is displayed in a correction check display window 803 shown in FIG. After the content of the correction is defined by the user, the program is actually corrected. When the correction work is completed, the program before the correction is compared with the result of the correction work, and the correction check display window 803 asks the user whether the correction work is correct or not. Here, it is determined whether or not to actually reflect the correction based on a response to the inquiry designated by the user.

FIG. 2 is an example of a screen for defining a desired correction content by a check condition definition window 304 displayed to capture the correction content of the program. In the editing system of the present embodiment, the program editing area 301
In the program editing area 301, editing operations such as general correction, addition, and deletion are performed.

Here, in order to define the syntax of the program to be corrected from the edit menu 302,
When the modification syntax definition 303 of the menu item is specified, a check condition definition window 304 is displayed as a separate window. In the check condition definition window 304,
A menu for setting syntax information and a correction pattern for narrowing down the target to be corrected from within the program is displayed. This specifies syntax information that consists of the grammatical modification unit of the program to be modified and the syntax element type to be modified, and matches the modification pattern from the syntax elements of the program that match the specified syntax information. This is to specify a correction content pattern for the location. For example, when the conditional expression “i <max” described in the end condition of the for statement in the program is changed to “i <max−1”, first, input of a mouse or the like is performed in the program editing area 301. Using the device, the syntax information and the pattern to be corrected are specified. At this time, “expression” is specified in the “registration type” item as the correction unit, “for statement−end condition” is specified in the “type” item as the syntax element type, and “before correction” is specified as the pattern to be corrected. If you select the character string from the item "
A program structure corresponding to the specified syntax information is extracted from the program to be corrected, and a predetermined character string is presented. In this case, the expression “i <m” selected in the editing area
“ax” is automatically transferred to the correction definition information storage area as a correction target pattern. In the check condition definition window 304, the registration type 3 by the user
Selection of type 306 in order from selection of 05, before modification 3
The syntax at the time of registration is limited in the order of selecting a syntax from 07. At this time, in the selection of the syntax before the correction 307, only the syntax that satisfies the conditions of the registration type 305 and the type 306 among the syntaxes existing in the program editing area 301 is displayed. The type of correction to be performed on the syntax selected in is described in the corrected pattern input area 308 after correction.

In the example shown in FIG. 2, as the correction work, the expression “i <included in the end condition expression of the control statement for
"max" is designated as "change to i <max-1". When the definition is actually registered in the modification definition information storage DB after designating these conditions and patterns, clicking the registration button 309 saves the definition contents, closes the check condition definition window 304, and ends. To cancel the setting, the user clicks a cancel button 310. The modification work definition of the program set by the user in the check condition definition window 304 is as follows:
It is registered in the modification definition information storage DB 107.

FIG. 3 shows the configuration of the modification definition information storage area in the modification definition information storage DB 107. The correction definition information storage area includes an area for storing the head address 401 and a table 402 for managing individual correction definition information input from the check condition definition window 304.
The information in the table 402 that manages the information defined by the user in the check condition definition window 304 includes the “registration type”, “type”, “before modification”, and “after modification” set by the user in the check condition definition window 304. Items,
The information is stored in an area 402b for storing the set registration type, an area 402c for storing the type of expression, an area 402d for storing the contents to be corrected, and an area 402e for storing the contents after correction. Each table 402 is linked to the next table by an area 402a. When a new correction syntax is registered, a new area for managing information for one definition is allocated, and a new area is connected by the area 402a to the end of the area group for managing information for one definition connected from the start address. Is done.

When comparing the result of the correction work, the target file is a file before the user performs the correction work and a file after the correction work. In this embodiment, since the comparison target of the correction is a syntax unit, the files before and after the correction are subjected to the syntax analysis in advance and then subjected to the comparison processing. Further, in this embodiment, since the definition information of the modification work is recorded in the modification definition information storage area in advance, the syntax and the contents after modification exist in the modification definition information storage area in the area 402d for recording the modification target contents. Is compared with the four syntaxes by adding the syntaxes existing in the area 402e for recording.

In these four syntaxes, the syntaxes to be compared include the comparison between the syntax of the file before the correction and the syntax of the file after the correction, and the area where the syntax of the file before the correction and the contents to be corrected are recorded. There are three types of comparison with existing syntax and comparison between syntax of a file after correction and syntax existing in an area 402d for recording the content after correction. FIG. 4 shows a comparison process in the correction result analysis unit 105i.

In order to detect a program difference in the syntax unit before and after the correction, first, syntax analysis is performed on both the programs before and after the correction (601). Comparison processing before and after correction is performed on all the syntaxes decomposed by the syntax analysis. After the analysis is completed, the program before the correction processing is compared with the syntax pattern existing in the area 402d for recording the contents to be corrected (602). If the syntax in the program before the correction matches the defined syntax pattern, the file contents before and after the correction processing of the part that matches the syntax pattern are compared based on the previously obtained syntax analysis result. As a result of this comparison, if the file contents before and after the correction match, that is, if the corresponding program has not been modified even though the syntax is already defined as the modification target, The message "The syntax has not been modified" is displayed (604). On the other hand, if the contents of the file before and after the file do not match, a comparison is made as to whether the correction result of the corresponding portion matches the syntax pattern defined as the correction content in the correction definition information. If both the correction result and the correction content of the correction definition information match,
If the correction has been made as defined in advance, a message "corrected according to defined conditions" is displayed (606). However, when the file of both the correction result and the correction content of the correction definition information do not match, a message that "the correction is not in the defined condition" is displayed (607).

In the comparison processing 602 between the program before the correction processing and the syntax pattern to be corrected, for the syntax that is not defined as the correction target, the program before and after the correction is compared for the corresponding part (608). As a result of this comparison, if they match, the syntax is not defined as a target of the correction work, and the comparison process for that syntax ends, but the correction is made for the undefined syntax. Is displayed, the message "Modification not defined" is displayed (60
9).

When the corresponding message is displayed, the program correction result is stored and managed in the correction result storage area of the correction result analysis unit 105i to display the message (610). It is checked whether the above processing has been performed for all the syntaxes (611). If the comparison processing has been executed for all the syntaxes in the program, the difference detection processing ends.

FIG. 5 shows a configuration of a correction result storage area for storing a correction result for displaying a message in the comparison processing. The correction result storage area is for displaying the comparison result in the correction check display window 803 in FIG. 6 via the image data output unit 105d after executing the comparison processing. The modification result storage area has a list structure similarly to the modification definition information, and one entry has one comparison result information, that is, one comparison result information.
The correction result information corresponds. The list 702 starts from the entry stored at the start address 701. Each entry is an nx 702a that stores a head pointer of the next comparison result information area, a registration table 702b that stores an index indicating an entry of the modification definition information storage table to which the corresponding comparison result is applied, and an object to be displayed in the program. A line 702c for storing a line number of a line including the syntax that has become a message, a message 702d for storing a message to be displayed or a predetermined message ID, and a correction possibility flag 70 for storing correction instruction information from a user.
2e. FIG. 6 shows a user interface for comparing and confirming correction processing contents based on the correction content definition defined by the user. When the menu of the correction check 802 is selected from the edit menu 801, a correction check display window 803 displaying a comparison result between the correction definition contents defined in advance and the correction result is displayed.

The display method of the display result in the correction check display window 803 is determined according to the message to be displayed.
There are kinds. First, a corrected message 80 is displayed for a portion where the correction as defined has been made.
4 is displayed. If a correction contrary to the definition is made, a message 805 of an incorrect correction is displayed. At this time, the user is prompted to select whether the current correction is sufficient, whether the correction is to be made according to the defined correction contents, or the state before the correction. In addition, a message 806 indicating that correction has been omitted is displayed for a portion where correction has been omitted. At this time, a selection button for inquiring whether to correct the registered definition content or to keep it as it is is displayed. Then, a message 807 indicating that an improper correction has been made is displayed for a portion where the correction has been made even though the correction has not been defined. In this last case, a selection button is displayed for selecting whether to maintain the correction or to undo the correction. After the user selects a correction in a series of messages and then clicks a button 808 for performing the correction, the user makes a correction to the file based on the specified correction instruction and closes the window. When the cancel button 809 is selected,
The settings made on the correction check display window 803 up to that point are canceled and the window ends.

After clicking on a correction execution button 808 in the correction check display window 803, the syntax that needs to be corrected, that is, the part where the correction work is being performed according to the predefined correction processing definition, and the correction check display window 803 For the syntax confirmed by the user as requiring modification, the result of the modification is reflected in the result of the syntax analysis of the program before the modification work, and replaced with the file that the user has modified.

[0023]

According to the present invention, the contents of the correction work are registered in advance with respect to the syntax of the program for performing the correction work, and after the program correction work, the difference result before and after the correction is displayed based on the registered correction contents, thereby making the correction. It is possible to easily determine whether the content is correct. As a result, it is possible to easily and reliably perform the correction work.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a software development tool according to an embodiment of the present invention.

FIG. 2 is an example of a screen for defining correction contents in the embodiment.

FIG. 3 is a table configuration of a modification definition information storage table in a modification definition information storage DB.

FIG. 4 is a flowchart for comparing correction contents based on a correction content definition in the embodiment.

FIG. 5 is a table configuration of a correction check table used to display a correction check display window.

FIG. 6 is an example of a display screen in which correction contents are compared based on a correction content definition in the embodiment.

[Explanation of symbols]

105: arithmetic processing unit, 106: development software storage DB, 107: correction definition information storage DB, 304: check condition definition window, 803: correction check display window.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hiroshi Wada 5-2-1 Omikacho, Hitachi City, Ibaraki Prefecture Inside the Omika Plant, Hitachi, Ltd. (72) Fumiyoshi Suzuki 5, Omikamachi, Hitachi City, Ibaraki Prefecture No. 2-1 Hitachi Process Computer Engineering Co., Ltd. (72) Inventor Hisatoshi Kobayashi 5-2-1 Omika-cho, Hitachi City, Ibaraki Prefecture Hitachi Process Computer Engineering Co., Ltd.

Claims (3)

[Claims] In a method for comparing a program correction result at the time of a program editing operation, a correction operation is defined by syntax information of a program and a syntax pattern before and after the correction, and a program before and after the correction operation is subjected to syntax analysis, and is defined in advance. The syntax pattern before the modification work is compared with the syntax analysis result of the program before the modification work, and the syntax analysis result of the program after the modification work corresponding to a portion where the comparison result matches is defined as a predefined modification work. And storing the result of checking whether the syntax pattern matches the corrected syntax pattern, and prompting the user to confirm the correction work based on the comparison result with the stored corrected syntax pattern. Method. 2. The program correction result comparison method according to claim 1, wherein the syntax information of the program includes a grammatical correction unit of the program and a type of a syntax element to be corrected. Method. 3. The program correction result comparison method according to claim 2, wherein the pre-correction syntax pattern of the change operation is selected from a result of a syntax analysis of the program before the correction operation. Method.