JP2002278951A - Method for developing tagged document processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system developing method as a frame work for developing a tagged document processing system, which has a function for receiving designation with a document element-type (tag) and the meaning as a set. SOLUTION: Basic material data structure for regulating a material used in a tagged document and document basic-form data structure being the basic form of document element-form data structure for regulating the characteristic of the document element-form used in the tagged document are previously prepared. Document element-form data structure corresponding to the newly defined document element-form and new material data structure are generated based on them, and document element-form data structure is correlated with material data structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a system development method used to develop a tagged document processing system for editing or presenting a tagged document in which a document element type (tag) can be arbitrarily defined.

[0002]

2. Description of the Related Art A document described in a markup language (for example, an XML (eXtensible Markup Language) document or an SGML (Standard Generalized Markup Language) document) in which a user can arbitrarily define the type of a document element constituting the document is edited or edited. When developing a tagged document processing system for playback and display, DTD (Docume
nt Type Definition) must be assumed for the specific document element type (tag or mark). Grammar for expressing multimedia documents (eg XML
Document standard), even if the document element type can be arbitrarily defined, when the processing system is created, the document element type to be processed is determined.
And it must be clear what the editing operations are. And WYSIWYG
(What You See Is What You Get) In editing, the display function is indispensable.

In the processing system, it is necessary to hold these documents as an internal structure, and a syntax analysis tool called a parser creates the internal structure from a document described in a markup language. This parsing tool also needs to generate an internal structure corresponding to the document element type.

A tool for developing a general-purpose authoring system is disclosed in Japanese Patent Application Laid-Open No. 9-305391. The authoring tool development device disclosed in this publication develops an authoring tool as a set of objects, and arranges basic objects, graphic objects, and interactive objects, and specifies a script as an operation of an interactive object. Enables the authoring tool GUI (Graphical User Inter
face) to create and display tools. Japanese Patent Application Laid-Open No. 2000-35961 discloses that S
An SGML editor is shown that facilitates creation of a GML document.

[0005]

However, the above-mentioned Japanese Patent Application Laid-Open No. 9-305391 mentions a method of displaying and editing a multimedia material itself created by an authoring system. Absent. Therefore, the authoring tool development device disclosed in this publication is effective as a tool for creating an operation screen configuration (GUI screen) for an operation performed by authoring, but can perform WYSIWIG editing for an arbitrary multimedia material. A new technology is needed to incorporate the display and editing functions of the multimedia material itself into the target authoring system.

The technique disclosed in Japanese Patent Application Laid-Open No. 2000-35961 is not a method of developing an authoring tool, but relates to the function of the authoring tool itself. How to do that is not shown.

For example, when a data record consisting of a collection of fixed fields is expressed using tags instead of style sheets, the meaning must be understood from the meaning of the tags. But the publication does not mention this detail.

[0008] As a development tool of the editing system,
It is desirable to be able to cope with a compression coding method that may appear in the future such as an image. Tagged documents for which the document element type (tag) can be arbitrarily defined include S
There are GML documents, XML documents, etc., and tools for developing a specific authoring system corresponding to a specific document element group have already been commercialized, but editing and display corresponding to any DTD (document type definition) Tools for developing the system have not been proposed yet.

A tool for developing a processing system for an XML document or the like in which a document element type can be arbitrarily defined cannot assume a specific document element type. This is because, if a specific document element type is assumed, it will not be a development tool of an arbitrary processing system, but will limit the processing system that can be developed by the development tool. Even if it represents a numerical value in a document, in some cases the number will be displayed in the sentence, in other cases it will mean the value of a certain field of some data, and it may be edited and displayed in data record format Absent. These differences are completely dependent on the implementation. A general-purpose processing system development tool (editing device creation tool) itself must be able to handle both cases, and must be able to be specified.

[0010] The present invention has been made in view of the above points, and has a frame for developing a tagged document processing system having a function of receiving designation of a document element type (tag) and its meaning as a set. The purpose is to provide a system development method as a work.

[0011]

According to the first aspect of the present invention, there is provided a tagged document processing system for editing or presenting a tagged document capable of arbitrarily defining a document element type. A tagged document processing system development method to be used, which represents a basic material data structure for defining a material used in the tagged document, a document hierarchical structure of the tagged document, and a document of the tagged document. A document basic type data structure, which is a basic form of a document element type data structure for expressing characteristics of a document element specified by an element type and defining characteristics of the document element type used in the tagged document. Using a device whose structure is prepared in advance, a document element type data structure corresponding to a newly defined document element type is created based on the document basic type data structure. Executing a new material data structure based on the basic material data structure, and associating the created material data structure with the document element type data structure. And

According to a second aspect of the present invention, in the method of developing a tagged document processing system according to the first aspect, the tagged document processing system employs a graphical user interface using a window system, and The interface makes the display for presentation / edit of the material data structure corresponding to one material correspond to one window, corresponds to the hierarchical structure of the tagged document, and makes the window a hierarchical structure. The result of the operation is transmitted to the root document element at the top of the hierarchical structure of the document type data structure so that the operation is performed on the corresponding document element, and window operation information is acquired from the root document element. There is a feature.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating a configuration of a tagged document editing apparatus creation tool to which a system development method according to an embodiment of the present invention is applied, and a tagged document editing apparatus created by the tool. A tagged document editing device creation tool and a tagged document editing device developed by the tool include a CPU (Central Processing Unit), an input device,
Computer hardware 401 including a display device, a storage device, and the like;
1 and more specifically, an OS / graphics control program 402 and an editing program basic part 403. The storage device stores a basic material data structure 301 'and a document basic type data structure 302'. Have been.

OS / graphic control program 402
Provides a GUI based on a window system. The editing program basic part 403 performs processing of each description item described in the XML document standard, such as control of file input / output, processing as a parser, and display / change of attributes of a document element type.

A cut buffer used for general editing is prepared as one of the storage devices, and can be used in the basic document type data structure 302 'and the basic material data structure 301'. The screen operation is also notified as an operation event to the document basic type data structure 302 ′, and is further notified to the basic material data structure 301 ′ via the document basic type data structure 302 ′.

The document basic type data structure 302 'and the basic material data structure 301' themselves define the structure of data to be input, and the document element type is DTD (Docu).
mentType Definition), and the document type data structure to be developed is determined only after the meaning of the document element type is determined. When the material to be used is determined, the material data structure is determined.

After the DTD is defined, a document element type data structure and a document material data structure are created by using the document basic type data structure 302 'and the basic material data structure 301'. When written in an object-oriented language as an oriented class,
It is effective for reusing existing data structures such as these.
Therefore, the basic material data structure 301 'and the document basic type data structure 302' are modeled as object-oriented classes, and the basic material data structure class 301 shown in FIG.
And a document basic type data structure class 302. The notation is a rectangle with rounded corners representing one class, and the fields in the order represent the class name, attributes (variables, etc.), and interface (function names, etc.) in order from the top. Although all attributes and interfaces should be described, FIG. 1 and other drawings described below show the minimum attributes and interfaces necessary for the description of the present embodiment.

FIG. 2 is a diagram developed by the tool of FIG.
4 shows a screen of an XML document editing / preview tool. In the following, the procedure for developing the XML document editing / preview tool of this example will be described, and the development procedure of the tagged document processing system using the tool shown in FIG. 1 will be specifically described.

This tool corresponds to the DTD shown in FIG. This XML document editing / preview tool is made up of five newly created document element type data structures and one material data structure. That is,
A tag document element type data structure 201 ', a text document element type data structure 202', a table document element type data structure 203 ', a table data document element type data structure 204', and a table cell document element type data structure 20 shown in FIG.
5 ′, and a text material data structure 206 ′. Only the text document element type data structure 203 'and the table cell document element type data structure 205' are associated with the text material data structure 206 '.

From the DTD shown in FIG. 3, tags “head”, “title” and “para” are added to the text document element type data structure 2
Name, Year, Month, D
ay tag is a table cell document element type data structure 2
It is represented by the internal structure 05 '.

Each document element type data structure 201'-20
Reference numeral 5 'denotes a developer (a user of the document editing apparatus creating tool) based on the document basic type data structure 302'.
Create. This relationship is shown by an object-oriented class as shown in FIG. 5, and the document element type data structures (classes) 201 to 205 shown in FIG. 5 are created using the basic form of the document basic type data structure class 302. Specifically, from the DTD document type shown in FIG.
Since the content model includes #PCDATA in its content model, it is regarded as handling text characters, and the tag-corresponding internal structure of the text document element type data structure 202 ′ (text document element type data structure class 202) is described. create.

According to the DTD of FIG. 3, the Name, Year,
The tags Month and Day are dat, which is a substructure of the table tag
A tag that follows the a tag and represents each field of the table, and its content model is #PCDATA, which means that it is not a simple character string but a value. Therefore, instead of the internal structure of the text document element type data structure 202 ′, an internal structure of a table cell document element type data structure 205 ′ (table cell document element type data structure class 205) is created.

The table tag constitutes a table, and the data tag constitutes a row of the table. In order to provide a function of managing the table, a table document element type data structure 203 '(table document element type data structure class) is provided. 203) and table data document element type data structure 204 (table data document element type data structure class 2)
04). Other tags have a tag document element type data structure 201 ′ (tag document element type data structure class 201) representing a simple tag.

An XML document is input, and these document element type data structures determined corresponding to tags are assigned to a memory by a parser portion of the editing program basic portion 403, and attribute values are set. Next, a developer newly creates a material data structure based on the basic material data structure 301 'prepared in advance. FIG. 6 shows this relationship as an object-oriented class.
That is, a text material data structure 206 'for handling text characters is created based on the basic material data structure 301'.

Next, the developer associates the material data structure with the document element type data structure. That is, the text document element type data structure class 202 and the table cell document element type data structure class 205 are associated with the text material data structure class 206, respectively. This is because these two document element type data structures have #PCDATA in the content model and have a characteristic of displaying this as a character string on the screen.

For example, the object-oriented language C ++
In the case of programming with the text material element type data structure class 202 and the table cell document element type data structure class 205, the text material data structure class 2
This means setting a member variable of type 06. After this procedure, compilation is performed based on a general computer program development procedure.

FIG. 7 shows the procedure created by the procedure described above.
4 shows a configuration including a tagged document processing device compatible with the DTD shown in FIG. 3. Compared to FIG. 1, the document element type data structures 201 ′ to 205 ′ and the text material data structure 20
6 'is added.

As described above, in the present embodiment, as shown in FIG. 1, an apparatus in which a basic material data structure 301 'and a document basic data structure 302' are prepared in advance, and the document basic data structure 302 'is used. Based on the document element type data structures 201 ′ to 201 ′ corresponding to the newly defined document element type.
205 ′ and the basic material data structure 30
1 ′, a new text material data structure 20
6 ′ and a procedure for associating the created text material data structure with the document element data structure (text document element data structure 202 ′ and table cell document element data structure 205 ′). As a result, it is possible to easily develop an apparatus for editing a tagged document corresponding to a document element type arbitrarily defined by the DTD.

If an internal structure as shown in FIG. 8 is obtained as a result of reading a certain XML document in accordance with the DTD shown in FIG. 3, the apparatus according to the present embodiment sets each of the document element type data structures 501 to 514 to It has a display area on the GUI screen, and is configured to have a screen configuration corresponding to each data structure. For example, since the para-2: text document element type data structure 506 has a table: table document element type data structure 507 as a subordinate structure,
As shown in FIG. 9, the screen is displayed so as to include the table: table document element screen area 507 'in the para-2: text document element screen area 506'. Similarly, ch
The apter: tag document element type data structure 503 has title: text document element type data structure 504, pa
ra-1: text document element type data structure 505 and para-
2: Since it has a text document element type data structure 506, the screen: chapter: tag document element screen area 50
3 ', title: screen area for text document element 50
4 ′, para-1: screen area 505 ′ for text document element,
And para-2: displayed so as to include the text document element screen area 506.

With such a screen configuration, for example,
para-1: When the text document element screen area 505 'is clicked, the OS / graphics control program 40 is clicked.
2 transmits the click event to a higher-order chapter: tag document element type data structure 503, and from there to a higher-level simpletext: tag document element type data structure 501. Accordingly, the topmost simpletext: tag document element type data structure 501 stores, for example, an address to the currently clicked (selected) document element type data structure, and the editing program basic part 403 stores ,
Directly obtain information of the selected document element type data structure.

[0031]

As described in detail above, according to the present invention, a device in which a basic material data structure and a document basic type data structure are prepared in advance is newly defined based on the document basic type data structure. For creating a document element type data structure corresponding to the created document element type, a procedure for creating a new material data structure based on the basic material data structure, and a procedure for creating the created material data structure and the document element type data structure. Is executed, so that an editing apparatus for a tagged document corresponding to a document element type arbitrarily defined by the DTD can be easily developed.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration of a tagged document editing device creation tool to which a system development method according to an embodiment of the present invention is applied, and a tagged document editing device created by the tool.

FIG. 2 is a diagram illustrating an example of a created operation screen of a tagged document editing apparatus.

FIG. 3 is a diagram illustrating an example of a DTD.

FIG. 4 is a diagram showing a document element type data structure and a material data structure created corresponding to the DTD shown in FIG. 3;

FIG. 5 is a diagram showing a document basic type data structure and a document element type data structure created based on the document basic type data structure.

FIG. 6 is a diagram showing a basic material data structure and a material data structure created based on the basic material data structure.

7 is a diagram showing a configuration in which a created document element type data structure and a material data structure are added to the configuration of FIG. 1 so that a document corresponding to the DTD shown in FIG. 3 can be created and displayed. .

FIG. 8 is a diagram illustrating an example of the structure of an input tagged document.

FIG. 9 is a diagram showing an editing operation screen corresponding to the structure of FIG. 8;

[Explanation of symbols]

 301 'basic material data structure 302' document basic type data structure 401 computer hardware 402 OS / graphics control program 403 editing program basic part

Claims (2)

[Claims] 1. A tagged document processing system development method used to develop a tagged document processing system that edits or presents a tagged document in which a document element type can be arbitrarily defined. A basic material data structure for defining the material used in the tagged document, including attribute information indicating characteristics of the material to be provided, an interface for presenting / editing the material, and activating the process, A document element type data structure for expressing a document hierarchical structure, expressing characteristics of a document element specified by a document element type of the tagged document, and defining characteristics of a document element type used in the tagged document A document basic type data structure, which is a basic form of, is prepared by using a device in which two data structures are prepared in advance. A procedure for creating a document element type data structure corresponding to a newly defined document element type based on the above, a procedure for creating a new material data structure based on the basic material data structure, and a created material. A method for developing a tagged document processing system, comprising: executing a procedure for associating a data structure with a document element type data structure. 2. The tagged document processing system employs a graphical user interface using a window system, and the graphical user interface displays a material data structure corresponding to one material for display and editing. Corresponding to one window,
The windows are arranged in a hierarchical structure in correspondence with the hierarchical structure of the tagged document, and the result of the operation is set to the highest level of the hierarchical structure of the document type data structure so that the operation for each window becomes an operation for the corresponding document element. 2. A method for developing a tagged document processing system according to claim 1, further comprising transmitting the window operation information from the root document element to the root document element.