JPH02115968A - Input guide system for editor - Google Patents

Abstract

PURPOSE:To automatically insert the part of a text automatically defined to a text by performing the syntax analysis and the meaning analysis of the text simultaneously when the text is edited by using an editor, and displaying, for example, the same number of frames as that of arguments of a function or a procedure. CONSTITUTION:A command inputted from a keyboard 11 is analyzed at a command analysis part 21, and the syntax analysis and the meaning analysis of the declaration part of an inputted text are performed at a syntax and meaning analysis part 22 when the command is a registration command, and an analysis result is registered on a storage medium as guide information 13 by a guide information retrieval and registration part 23. When the command is a guide command, the guide information with respect to the function or the procedure being inputted is retrieved. Retrieved information is displayed on a display screen 10, and input is guided based on retrieved guide information, and the syntax analysis of an inputted character string is performed, and re- input is requested to the user of the editor when the input is performed incorrectly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an editor function for editing text in a computer language and a method for realizing the same.

[Conventional technology]

A computer language editor usually edits text according to commands and characters input from input means such as a keyboard or mouse, and displays the progress on an output means such as a display. However, these commands only operate on the font, such as inserting, deleting, copying, and converting a single character string; normal editors perform operations that depend on the content of the text (syntax and meaning of the language that composes the text). It has no function.

Computer languages have their own unique syntax and meaning, and some languages have established text writing styles.

Most editors with guiding functions have information about the syntax of a language and guide the text according to that syntax. What we mean here is the number of arguments for a function or procedure.
Information about language specifications, such as data types, that cannot be obtained from the syntax rules of the language. In addition, the guidance function is an editor function that allows an editor user to create text that conforms to the syntax, meaning, and writing style of the computer language by inputting characters or commands displayed on the output means as requested by the editor. It is.

A writing style is the form of a program's formulas or statements, and although it is not specified as a language specification, it is written in that form in most cases when creating text.

Examples known before the filing of the present invention include Hitachi Review,
Vol, 68. Nci5. pp49-54. (1
A computer-guided structure editor has been proposed as described in 986). However, these examples do not have a guidance function using information obtained through semantic analysis or information regarding writing style.

[Problem to be solved by the invention]

When editing text in a computer language that allows procedures and functions to be declared in the text, it is possible to derive or automatically check the number of arguments and data types based on the information in the declaration section of the procedure or function that has already been entered. However, since such checks are not performed when editing text, errors in syntax and meaning cannot be discovered until syntactic and semantic analysis is performed after editing, and it is also possible to create a computer language style with an established writing style. In most cases, even though there are parts where text can be created automatically, you have to enter each character one by one using a keyboard.

In order to improve this inconvenience, the present invention provides an editor function that automatically creates text parts that can be automatically created, and a method for realizing the same.

Also, when inserting a procedure or function with many arguments into text, editor users search for the declaration section of the function each time to check the number of arguments and the data type of each argument. Must see the hard copy. In order to solve this inconvenience, the present invention provides a function for immediately displaying the declaration section of a function to be inserted on a display, and a method for realizing the function.

Accordingly, one object of the present invention is to provide a means for automatically inserting automatically defined text portions into text.

Another object of the present invention is to provide a means for checking the number and data types of arguments of a function or procedure when editing text.

Another object of the present invention is to provide a means for an editor user to immediately obtain information regarding the declaration section of a function or procedure when inserting the function or procedure into text.

[Means to solve the problem]

In order to achieve the above object, the present invention simultaneously analyzes the syntax and semantics of the text when editing the text using an editor, and uses the results of the above analysis (hereinafter referred to as guidance information) when editing the declaration section. When editing a non-declaration section and inserting a declared function or procedure into the text, the information stored in the medium regarding the function or procedure is displayed on the output means, and the information about the function or procedure is displayed on the output means. For example, by displaying as many frames as the number of arguments,
It guides the input of arguments and checks its correctness by comparing the input with guidance information. Here, the above-mentioned guidance information refers to the number of arguments, data type, etc. of functions and procedures in the computer language to be edited.

Furthermore, the editor has information regarding the writing style as a program or data, and uses that information to guide the writing style for parts where the writing style has been established.

[Effect]

According to the present invention, when inputting the arguments of a function, the editor user only has to input the derived number of arguments3, thereby eliminating errors in the number of arguments. In addition, it is only necessary to input a variable or function of the data type displayed in 5, and errors in the data type of the argument are less likely to occur.

Furthermore, if an error occurs in the data type of an argument, the error will be corrected by the editor requesting input again.

Furthermore, the editor automatically inserts the portion automatically determined from the declaration section of the text, thereby reducing the input effort of the editor user.

【Example〕

(Example 1) Embodiments of the present invention will be described in detail based on the drawings.

FIG. 1-a is a flowchart showing one embodiment of the guidance processing procedure. FIG. 1-b and FIG. 1-○ are details of the processes 103 and 107 in FIG. 1-a, respectively. Figure 2 shows an example of the system configuration of the editor, and Figure 3 shows the display screen when the functions of deriving function arguments and displaying function declarations are applied to text editing of a procedural language. This is an example of a transition.

In FIG. 2, 10 is a display, 11 is a keyboard, 12 is an editor, and a command interpretation/execution unit 21.
Syntactic/semantic analysis section 22. Reference numeral 13 denotes a medium that has a guidance information search registration section 23 and stores guidance information obtained through semantic analysis.

Next, the operation of each part in FIG. 2 will be explained based on the flowchart in FIG. 1 and the transition example of the display screen in FIG. 3. However, it is assumed that the commands of the editor 12 include a registration command for registering analysis information, a guidance command for activating a guidance function, a normal command for performing normal editing processing, and an end command for terminating the editing processing.

First, a command input from the keyboard 10 is analyzed by the command analysis section 21, and if the command is an end command (101), the process is ended (110).

If the command is a registered command (102), the syntax/semantic analysis unit 22 performs syntactic/semantic analysis of the declaration part of the input text, and the guidance information search/registration unit 23 registers the analysis result in the storage medium as guidance information 13. (103).

If the command is a guidance command (104), the guidance information regarding the function or procedure being input is searched, and if the information regarding the function or procedure being input is not registered (105)
, performs normal editing processing (ill).

Otherwise, the searched information will be displayed on screen 10.
106), guides input based on the detected guidance information 107), parses the input string (1, 08), and if the input is incorrect (109), prompts the editor user. Re-input is requested (107).

If the command is not a termination command, registration command, or guidance command, perform normal editing processing (111).
), repeat this until the end command is input.

The above syntactic/semantic analysis is performed in the same manner as syntactic/semantic analysis in computer language compilers and interpreters.

When a registration command is input in the state of the display screen 31 in FIG. 3, the editor registers the number of arguments and data type of the function as guidance information 34 in the storage medium. Furthermore, when a guidance command is input, the above-mentioned guidance information 34 is output to the display screen in a format that is easy for the editor user to read 330.
), the guidance information is used to guide the input.

In FIG. 3, ■ symbol 33190 symbol 332 represents the position where the editor user should input, and especially ■ symbol 331 represents the position where the editor user should input next. Note that when displaying the information of the declaration part on the display screen, instead of displaying the result of semantic analysis, it is possible to memorize the position of the declaration part in the text and output the string at that position as is. Effects can be obtained.

(Example 2) Another example of the present invention will be described in detail using the drawings. Here, we will take an algebraic specification description language as an example of a language with an established description style.

An algebraic specification usually consists of a data type declaration section, a function declaration section,
It consists of a variable declaration part and two equation set parts, and functions are divided into constructors and definition functions. When creating text for an algebraic specification description language, the isometric set part is next described in style.

In the algebraic specification, the constructor f5, fz, ...l flll and the definition function is gl*　g2e　”’e　gn Then, the isometric set part is described in the following style.

gz(fx(...))=...; ga(fz(...))=...; gn(ft(...))=...; gz(fz(...) )=...;g 2(f z(...));...;gn(fz(・
・・))=...; g s(f m(...))=...;gz(fm(・
...))=...; gn(fm(...))=...; An embodiment in which the above description style induction is applied to the present invention will be described with reference to the drawings.

Figure 4 shows an example of display screen transitions using the description style guidance function, and Figure 5 shows the syntax and structure of the function declaration section and variable declaration section.
FIG. 6 is an example of the guidance information obtained as a result of the semantic analysis, showing an example of the transition of the display screen due to the function argument guidance function.

The text in FIG. 4 is written in an algebraic specification language, including a data declaration section 401, function declaration sections 402 and 403,
It consists of a variable declaration section 404 and an equal size set section 405. In this language, the information in the function declaration section and variable declaration section is used to derive the equi-large set section.

When a registration command is input in the state of the display screen 40 shown in FIG. 4, the editor displays guidance information 51 to 51 shown in FIG.
54 is registered in the storage medium. After the guidance information is registered, when a guidance command is input, the constructor 51 of the guidance information and the definition function 52 of the guidance information are combined and displayed on the display as the left side of the equation.

Do this for all combinations. As a result, the display screen becomes like the display screen 41 in FIG. 4. At this time, the argument of the constructor is determined by searching the guidance information 53 for variables of the data type indicated in the guidance information 54.

According to this embodiment, since the editor guides the values to be defined for all pairs of constructors and definition functions,
No more missing input. Furthermore, when adding a constructor or definition function, the editor user can immediately know which part of the text should be modified.

Note that the guide information may be registered automatically by the editor when the function declaration section or variable declaration section is inserted, without depending on the command.

If the distinction between a constructor and a defined function cannot be determined from the syntax, it is determined based on input from the editor user.

As shown in FIG. 6, in the case of an algebraic specification description language, arguments of a function can also be derived in the same way as in the procedural language shown in FIG. The guidance information at this time is guidance information 54 in Figure 5.
It is.

〔Effect of the invention〕

As described above, according to the present invention, automatically determined text portions can be automatically inserted into text, and text can be edited efficiently.

Additionally, since the number of arguments and data types of a function or procedure are checked when editing text, errors can be corrected in a short time.

Furthermore, when a function or procedure is inserted into text, the declaration part of the function is displayed on the display screen, so the editor user does not have to search for the declaration part of the function one by one.

[Brief explanation of the drawing]

Fig. 1 is a flowchart showing an embodiment of the derivation processing procedure of the present invention, Fig. 2 is a block diagram of a system configuration of an embodiment of the present invention, and Fig. 3 shows the derivation function of function arguments and the declaration section of the function. An example of display screen transition when the display function is applied to a procedural language. Figure 4 shows an example of display screen transitions using the description style guide function, and Figure 5 shows the syntax of the function declaration section and variable declaration section.
A clear view of the guidance information obtained as a result of the semantic analysis, and FIG. 6 is an example of the transition of the display screen in an embodiment of the function argument guidance function. 10...Display, 11...Keyboard, 12
...Editor, 13...Storage medium for guidance information, 21
...Command interpretation execution unit, 22...Syntax and semantic analysis unit, 23...Guidance information search registration unit, 331, 332...
・Input position Row number - 〇 section - End of Cape Comant (K line 4 A2 V3 5 mouth Fig. 6 Ten 7° Ray screen 6I Tice 7 Ray button 62

Claims (1)

[Claims] 1. Means for parsing text written in a computer language;
In an editor that has a semantic analysis means, a means for registering and searching analysis information, and edits the text while performing syntactic and semantic analysis of text in a computer language that can define procedures and functions, when declaring a function or procedure, the argument data is When information about types and numbers is registered, and a registered function name or procedure name is inserted into text, input is guided using the registered information, syntactic and semantic analysis is performed immediately, and the registered function name or procedure name is inserted into the text. An input guidance method in an editor, which compares information with information and, if the input is incorrect, informs the editor user of the fact. 2. In the input guidance method of claim 1, when a declared function or procedure is inserted into the text while editing a text in a computer language that can define functions or procedures, the information in the declaration part of the function or procedure An input guidance function characterized by displaying on an output means such as a display. 3. Means for parsing text written in computer language;
It has a semantic analysis means, a means for registering and searching analysis information, and stores information about the writing style of the language in which the writing style has been established in the editor, and the parts that are automatically determined from that information are automatically updated to the text being edited. An input guidance function characterized by being inserted into.