JPH0358225A - File editing system - Google Patents

Abstract

PURPOSE:To display only a specific part of an input file on a console by coupling a result of updating of a read-in part of the specific part and the part which is not executing read-in, outputting an updating file to an external storage device and setting the specific contents in the input file as instructing information. CONSTITUTION:An editing part 5 is provided with an instructing information prescribing part 13 for prescribing the specific contents of an input file as instructing information, a specific part reading-in part 10 for reading in a specific line contained in the input file in accordance with grammar which the input file has, a specific part display processing part 11 for displaying the specific line, and an updating result file generating part 12 for coupling a non-read- in part and an updating part. In such a way, the specific contents in the input file can be prescribed as the instructing information, and only the specific part of the input file can be displayed on a console.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a file editing method.

[Conventional technology]

Here, the program that edits the input file is called an editor. As shown in FIG. 6, a general editor 2 inputs a file 1 through a file input section 3, and outputs the contents of the file to a console 9 through a screen output section 6. Further, an operation instruction input from the console 9 is inputted from the operation instruction input section 4, and editing processing is performed at the editing section 5. Also,
According to the editing result of the editing section 5, the file output section 7 outputs the update result to an update result file 8.

The host machine 21 on which this editor runs, as shown in FIG.
, an arithmetic unit 23 that performs editor processing, and an external storage device 24 that stores files.

Editors manage files logically. In the editor that edits the source file for the language processing program,
Files are managed line by line.

Line punctuation methods include methods that define a line as ending with a specific ending character (for example, a linefeet character), and methods that manage the length of each line within a file.

Further, in a source file for a language processing program, instruction information for the language processing program is expressed using a grammar.

Conventional editors read the input file when started, regardless of the instruction information written in the input file.
Displays all contents on the console in response to input operation instructions.

There are also editors that improve upon conventional editors and display only a specific part of the input file on the console according to the instruction information written in the input file, but in this case, the information that defines the specific part is written to the editor in advance. The editor user was unable to specify the instruction information written in the input file.

[Problem to be solved by the invention]

To explain the issues, we will use a source file for a language processing program as an example. An editor for editing source files for language processing programs manages files line by line. Also,
It is assumed that the instruction information is expressed by the grammar of the language processing program.

Many language processing programs have a function called conditional compilation in order to embed debug information during program development or to unify the management of programs with multiple uses. This is a function that inputs only specific lines of a file according to a directive representing a grammar predefined in a language processing program. For example, in a C language processing program, a specific line in a file is determined using directives such as #:ifdef and #endif, and only the specific line is input. Also, in an assembler language processing program,
A specific line in the file is determined by indicators such as SET, IF, and ENDIP, and only the specific line is input.

Conventional editors do not recognize such directives even if they exist in a file, so the editor displays the contents of the file to the host machine's console even for lines that the language processing program does not read. indicate. For this reason, when directives are used, it may take time for the language processing program to determine the part to be read and then find the part in the file that you want to edit, or it may cause you to accidentally edit a part that the language processing program does not read. There was a problem that development efficiency was reduced.

In addition, there are editors that improve upon conventional editors and display only specific parts of the input file on the console according to the instruction information written in the input file, but in this case, the information that defines the specific part is pre-built into the editor. As a result, there were problems as described below. For example, if only the instruction information in an input file written in language A is built into the editor, in the input file written in language A, only a specific part of the input file is displayed on the console according to the instruction information written in the input file. It is possible to display the However, if the input file is written in language B, which has different instruction information from language A, the editor cannot recognize the instruction information written in the input file, so when the editor is started, it reads the input file and gives operation instructions. There was a problem in that the entire content was displayed on the console depending on the input.

An object of the present invention is to provide a file editing method that can define specific content in an input file as instruction information and display only a specific part of the input file on a console. It is in.

[Means to solve the problem]

The structure of the present invention includes an input means for inputting a file from an external storage device, a key input means for inputting operation instruction information from a console, a means for editing the file based on the operation instruction information, and a means for inputting the editing result to the console. In a file editing method comprising an output means for outputting to an external storage device and a file output means for outputting a file updated by the editing result to an external storage device, the input file includes: a processing unit that defines specific contents of the input file as instruction information; a processing unit that reads a specific part of the file according to the instruction information written in the file; a processing unit that displays the read content of the specific part on the console; and a processing unit that reads the update result of the specific part reading unit. a processing unit that combines the parts that have not been updated and outputs the updated file to the external storage device, and by specifying specific contents in the input file as instruction information, only the specific parts of the input file can be output. It is characterized in that it can be displayed on the console.

〔Example〕

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

In this embodiment, a source file for a C language processing program is used as an input file, an editor that manages files line by line is used as a file editing program, and instruction information is expressed using the grammar of the C language processing program. I will do so.

In the C language, a name is defined by writing it in the operand of the #define directive. #define
Separate the directive and operand with a space. Further, the range of a specific row group is specified using the #:irdef directive and the #endif directive. The syntax of these indicators is shown in Table 1.

Table 1 (Note) △ indicates one or more blank spaces. # Write a name as an operand of the i r d e f directive, and if this name is not defined or the value O
is defined, the following lines are #:endif
Ignored until the directive is read. Table 2 shows an example of a file for the C language processing program, and Table 3 shows the portion of this file that is to be processed by the C language program.

Table 2 Table 3 In the following explanation, #if
It is assumed that def directives are not nested.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. The editing unit 5 includes an instruction information specifying unit 13 that specifies specific contents of the input file as instruction information, a specific part reading unit 10 that reads specific lines in the input file according to the grammar of the input file, and a specific part reading unit 10 that reads specific lines in the input file according to the grammar of the input file. It has a specific part display processing unit 1l that displays lines, and an update result file creation unit 12 that combines the non-read part and the updated part. In this embodiment, it is assumed that the editor user does not add the #define operator or change the operand of the $derine operator when using the editor. This is a limitation when using the editor.

If the editor user wants to make this addition or change, the editor user can add the #define operator or use the #define operator.
Additions and changes can be made by once ending the use of the editor after changing the operand of the define operator, and then restarting the editor.

Next, the processing of the instruction information specifying unit of this embodiment is shown in the flowchart of FIG. I will explain.

Table 5 The syntax of the instruction information specification file for recognizing the instruction information of the input file is as shown in Table 4. S that specifies the start of a specific part of
It has a grammar for the TART specification line and an END specification line that specifies the end of a specific part of the input file.

In addition, the method for parsing the instruction information of the input file is described in Section 5.
Three types are prepared as shown in the table. As a specific example, in the case of the C language grammar shown in Table 1, the instruction information specification file is described as shown in Table 6.

Table 6 The processing of the instruction information specifying section that reads this instruction information specifying file will be explained with reference to the flowchart of FIG. Here, the instruction information specification file is the DEFIME specification line, STA
It is assumed that the information is written in the order of the RT specification line and the END specification line. First, in step 101, the instruction information specification file is opened, and then in step 102, one line is read. This line is regarded as the DEFINE specification line, and the specified character string of the instruction information of the input file (character string after = in the instruction information specification file) that specifies a name for identifying a specific part of the input file is specified as the DEFINE character. It is stored in the column storage area (step 103). Next, according to the number in the DEFINE specification line, set the process corresponding to the syntax analysis method of the instruction information of the input file in Table 5 as the DEF'INE character string analysis method (step 104), and then read one line ( 1 0
5). With this line as the START regulation line, the specification character string of the input file instruction information that starts a specific part of the input file is stored in the START character string storage area (1 0
6). Next, in step 107, the corresponding process in Table 5 is set as the START character string analysis method according to the number in the START specification line, and then one line is read (1 0 8).
With this line as the END specification line, specify the specified character string of the input file instruction information that ends the specific part of the input file.
Store in the D character string storage area (1 0 9). Next, E
According to the number in the ND specification line, the process corresponding to the syntax analysis method of the instruction information of the input file in Table 5 is set as the END character string analysis method (1 1 0), and finally the instruction information specification file is closed (1 1 1).

Next, the processing of the specific portion reading section will be explained with reference to the flowchart of FIG. Here, it is assumed that the input file is read only in the forward direction, and if the input file is read randomly, the editing section 5 may create a work file corresponding to the read position of the input file. .

This process of randomly reading and creating a work file corresponding to the read position of the input file is common in conventional editors.

In this embodiment, the specific part reading unit added to the conventional process first opens an input file, an updated work file, and a non-updated work file in step 201, and then reads one line in step 202. Repeat the following process until there are no lines left in the input file (20'3
). The read line is analyzed based on the DEFINE character string analysis method, and the result is compared to see if it is a DEFINE instruction line (204). Next, if it matches the DEFINE instruction line, it is then determined whether the value of the name tag is 0 (2 0 5).

If the value is not O, the name written in the operand of the DEF'INE instruction line is registered in the name table inside the editor (206). Next, the process returns to step 202 to read one line.

After reading to the end of the input file and registering it in the name table, prepare to read it again from the beginning of the input file. (2 1 4). Next, read one line (2
1 5). Repeat the following process until there are no more lines in the input file (2 1 6).

As a result of analyzing the read line based on the START character string analysis method, it is determined whether or not it is a START instruction line (
208). If the name matches the START instruction line, the name table is searched for the name written in the operands of these indicators to see if there is a matching name (209).

If there is a name tag, the lines after that line are analyzed based on the END character string analysis method, and the contents of the lines are output as one record per line to the update work file until the END instruction line is found (210). If there is no matching name, a record indicating the non-updated section management block number (1 in this case) is output to the updated work file (2 1 1). On the other hand, first, a record indicating the non-updated part management start block number (1 in this case) is output to the non-updated work file (2 1
2). Next, the lines after the name tag are analyzed based on the END character string analysis method, and the contents of the lines are output as one record per line to the non-updated work file until the END instruction line is reached, and the non-updated management end record is output. (2 1
3). The beginning of the line read in step 208 is S T
A. If it is not an RT instruction line, the contents of the line are output as one record to the update file (2 0 7). next,
Returning to step 215, one line is read.

The contents of the updated work file/non-updated work file thus generated for the input file in Table 2 are shown in Table 7 (a) and (b).

Table 7 (a) Update work file Table 7 (b) Non-update work file Next, the specific portion display processing section reads the update work file. If a non-updated portion management record is read here, a message will be displayed on the console indicating that there are portions that are not displayed on the screen. This process is shown in the flowchart in Figure 4. First, in step 301, one record is read from the update work file, and in step 302, the following process is repeated until there is no record left in the update work file. First, in step 303, it is confirmed whether the read record is a non-update section management record. If it is a non-updated part management record, a symbol indicating that the #ifdef part was skipped, for example, “＊＊＊＊ SKIP #ifdef ＊＊＊
*" is displayed on the console (3 0 4). If it is not a non-update section management record, the contents of the read record are displayed on the console (3 0 5). In this way, the console displays the updated work file in Table 7. Table 8 shows an example of what is displayed.

Table 8 Finally, the update result file creation section 12 has a connection section for updating work files and non-updating work files. Here, the contents of the update file are copied to the update result file. If the non-updated part management record in the update work file is read here, the contents from immediately after the non-updated part management start record of the corresponding record number of the non-updated work file to immediately before the non-updated part management end record Add to the update file. Next, the contents of the update file are copied to the update result file again.

This process is shown in FIG.

First, in step 401, the update result file is opened and one record of the update work file is read (4D
2). The following process is repeated until there are no more records in the update work file (4 0 3). First, it is checked whether the read record is a non-update section management record (4 0 4). If it is a non-updated part management record, search the non-updated part management start record corresponding to the update number from the non-updated work file (4 0
5) Output the contents of the non-updated work file to the update result file until just before the non-updated section management end record (
4 0 6). In step 404, the contents of the update work file are output to the update result file (407).

When there are no update work files, the input file, update work file, non-update work file, and update result file are closed (4 0 8). In this way, you can update the input file while displaying only a specific part of the input file on the console.

Next, a second embodiment of the present invention will be described.

The processing outline of this embodiment is the same as that of the first embodiment, and the difference is that the target input file is not a C language processing program but an assembler language processing program.

In the assembler language processing program, a name is defined by writing a name in the operand of the SET directive.

-Separate the SET directive and operand & with a space. Also,
Specify the range of a specific group of rows using the IF and ENDIF directives. The syntax of these indicators is shown in Table 9.

Table 9 In this case, the instruction information specification file is described as shown in Table 10. By inputting this instruction information specification file, the editor can select the SET in the input file.
You can find the directives, IP directives and ENDIF directives. In addition, it is possible to prevent the display of the part from the IF indicator to the ENDIF indicator where the value of the name of the SET indicator is 0.

Table 10 [Effects of the Invention] As explained above, in the editor using the present invention, specific contents in an input file are defined as instruction information, and only specific parts of the input file are displayed on the console. By displaying it, parts of the input file that you do not want to focus on will not be displayed on the console, which has the following effect.

(1) You will lose the ability to accidentally edit parts that you do not want to focus on.

(2) It becomes easier to find the part you want to edit.

(3) Since only the part of interest is displayed, it becomes easier to understand the contents of the input file.Furthermore, since the editor using the present invention can specify specific contents in the input file as instruction information, it is possible to This has the effect of allowing the editor user to increase the number of types and increasing the editing efficiency of input files.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a system for explaining one embodiment of the present invention, and FIGS. A flowchart explaining each process of the specific part display processing unit 11 and the update result file creation unit 12, FIG. 6 is a system book diagram explaining a conventional file editing program, and FIG. FIG. 2 is a block diagram of a running host machine. l...Input file, 2...File editing program, 3...File input section, 4.
...Key input section, 5...Editing department, 6...
... Screen output section, 7... File output section,
8... Update result file, 9... Console, 10... Specific part reading section, 11.
... Specific part display processing section, 12 ... Update result file creation section, 13 ... Instruction information specification section, ■ ... Host machine, 22 ... ... Console, 3 ... Arithmetic device, 24 ... External storage device, Ol ~ 111, 201 ~ 213, 301 ~
305,01-408...Processing steps.

Claims (1)

[Claims] An input means for inputting a file from an external storage device, a key input means for inputting operation instruction information from the console, a means for editing the file based on the operation instruction information, an output means for outputting the editing result to the console; In a file editing method having a file output means for outputting a file updated by an editing result to an external storage device, the processing unit defines specific content of an input file as instruction information, and the instruction written in the input file. A processing unit that reads a specific part of the file according to the information, a processing unit that displays the read contents of the specific part on the console, and an update result of the reading unit of the specific part and a part that is not read are combined. and a processing unit that outputs an update file to the external storage device, and by specifying specific content in the input file as instruction information,
A file editing method characterized in that only a specific part of the input file can be displayed on the console.