JP2001100985A - Document display system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a document display system which can make a document having multiple pages cooperate with a program. SOLUTION: This system is equipped with a means which reads in control information from document data containing a plurality of pieces of control information (parameter) for other processing means capable of reading in and executing document data on a screen in parallel to a document display process means when the document data are read in and a control means which controls the mentioned other processing means according to the control information in parallel to the display processing or nondisplay processing of the document data; and the control means determines control procedures and contents for the processing means according to whether or not a plurality of pieces of document data are displayed respectively or the display order of them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document display system having a function of reading document data and displaying the document data on a screen (document display processing means). The present invention relates to a document display system for executing and controlling a program code of another processing means such as a program.

[0002]

2. Description of the Related Art In recent years, with the spread of Internet technology, WWW systems having a function of displaying document data described in a format language called HTML (Hyper Text Markup Language) have been frequently used. . In the document data described in the WWW system and the HTML, a name of a specific program and input parameters at the time of starting the program are stored, and simultaneously with a process of displaying the document data, a program designated by the name is used. There is a function to execute with a specified input parameter. Since the programs can be transferred via a network before execution, different programs can be easily executed for the same document data. When the display of the document data is completed (for example, another document data is displayed), the execution of the program is terminated.

[0003]

However, this technique has the following problems. 1) Since only input parameters at the time of activation can be stored in the document data, there is no method for inputting parameters from the document data to a program that is already being executed. 2) Since only a program can be started from specific document data, one program cannot be controlled from a plurality of document data. For this reason, it is not possible to link a document over a plurality of pages with a program. An object of the present invention is to provide a document display system capable of coordinating a document and a program over a plurality of pages.

[0004]

In order to achieve the above object, the present invention provides a document display system having a document display processing means for reading document data and displaying it on a screen in parallel with the document display processing means. Means for reading the control information from document data in which a plurality of control information (parameters) for other processing means executable by the document data are stored at the time of reading the document data; Control means for controlling the other processing means in accordance with the control information, wherein the control means determines whether or not each of the plurality of document data is to be displayed, or the order in which the plurality of document data are to be displayed. Is characterized by determining the control procedure and details of the control.

[0005] The present invention is also characterized in that there is provided means for transferring, via a network, a program code of another processing means which can be controlled by control information stored in the document data.

[0006] Further, by using only unique and finite types of information as control information stored in the document data independently of the processing contents of other processing means to be controlled, the document data can be stored. It is characterized in that different processing means that can be controlled by the same control information without updating are set as control targets.

Here, the unique and finite type of information is
For example, a character string “showpage (2) combining a unique character string“ showpage ”as control information for instructing switching of a screen (page) in a specific processing unit and an identification number (page number) of a screen to be switched. ".
This character string is interpreted by different processing means as control information for instructing the same processing procedure (in this example, processing for switching to the screen of the second page). Further, as character strings usable as control information, for example, in addition to the control information for instructing the screen switching, “start”, “finalize”, and “storage”
Only finite four types of character strings "p" are interpreted by different processing means.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a system configuration diagram showing an embodiment of a document display system to which the present invention is applied. In FIG. 1, reference numeral 101 denotes a designated document data which is extracted from the auxiliary storage device 102,
A document data server having a function of transmitting the document data via an auxiliary storage device for storing a plurality of document data;
An arithmetic unit 3 executes the processing of the document data server 101. Reference numeral 104 denotes a program code server having a function of extracting a designated program code from the auxiliary storage device 105 and transmitting the program code via the network 112; 105, an auxiliary storage device for storing a plurality of program codes; An arithmetic unit that performs processing. 107 is a terminal device, 108 is a computing device for executing a document display processing program and other programs, 109 is a display device for displaying the screen of document display processing and other programs, 110 is a keyboard device for inputting character strings, 111 Is a mouse device for specifying a position on the display device 109.

FIGS. 2 to 4 are explanatory diagrams showing the structure of document data processed by the document display processing program of the terminal device 107. FIG. 2 shows the structure of document data processed first by the document display processing program. It shows. 2, reference numeral 201 denotes a body character string displayed on the screen by the document display processing program; 202, a link character string whose display content can be switched by clicking with the mouse device 111; and a document data name of the next screen;
Is the name of the program executed with the display of the document data (named "user registration A"), and 204 is the storage location (server name and file name) of the program executed with the display of the document data. 205 is a module name for starting execution of the program of the program name 203, 20
Reference numeral 6 denotes a module name for executing the display processing of the screen of the first page after the execution of the module having the module name 205 is started.

FIG. 3 is a diagram showing the structure of document data processed second by the document display processing program. As in FIG. 2, a body character string 301, a link character string, a document data name 302 of the next screen, The name of the program to be executed along with the display of the document data (name "User Registration A")
03, a module name 304 for executing the display processing of the screen of the first page.

FIG. 4 is a diagram showing the structure of document data to be processed thirdly by the document display processing program. As in FIG. 2, the body character string 401 and the name of the program executed together with the display of this document data ( The screen of the third page (named “user registration A”) 402 (the last screen in this example)
And a module name 405 for performing a termination process of the program 203 named “user registration A”. Since the document data of FIG. 4 relates to the last screen, there is no link character string and the document data name of the next screen.

FIGS. 5 to 7 are views showing examples of screens displayed based on the above document data. FIG.
This is an example of a screen displaying document data having a document data structure as described above by a document display processing program and a program having a program name 203. In FIG.
Is the display area of the document display processing program, 502 is the name of the document data "doc1" displayed at this time, 503 is the text corresponding to 201 in FIG. 2, 504 is the text corresponding to 202 in FIG. 505 is a display area of the program with the program name 203, 506 is the name of the program executed in the display area 505 (= “user registration A”).

FIG. 6 shows an example of a screen on which document data having the document data structure shown in FIG. 3 is displayed by the document display processing program and the program having the program name 203. Reference numeral 601 denotes the document display processing program. A display area 602 is the name “doc2” of the document data displayed at this time, 603 is a text corresponding to 301 in FIG. 3, 604 is a text corresponding to 302 in FIG. 605, program name 2
03 is the display area by the program, and 606 is the display area 6
05 (= “user registration A”).

FIG. 7 shows an example of a screen on which document data having a document data structure as shown in FIG. 4 is displayed by the document display processing program and the program having the program name 203. Reference numeral 701 denotes the document display processing program. A display area 702 is the name “doc3” of the document data displayed at this time, and 703 is a text corresponding to 401 in FIG.

FIG. 8 is a flowchart showing the flow of processing in this embodiment. Hereinafter, a method of displaying a document according to the present embodiment will be described with reference to FIG. First, in step 801, the document data of FIG. 2 referred to by the name of doc1.txt is read from the auxiliary storage device 102 by the document data server 101 and transferred to the terminal device 107 via the network 112. The trigger for transferring the document data to the terminal device 107 may be either when there is a request from the terminal device 107 or when there is a transfer request from the administrator of the document data server 101. Next, in step 802, the document data doc1.txt is processed by the arithmetic unit 108 and displayed on the display unit 109 as shown in FIG. At this time, the document data name “doc1” 502 is displayed, the body corresponding to the body character string 201 is displayed at 503, and the link character string 504 corresponding to the link character string 202 is displayed.
Is displayed. Next, in step 803, the storage location 204 of the program described in the document data is extracted. In this example (doc1.txt), the server name is "www.xxx.yy
y.zzz ", indicating that the program name is" prog.exe ". Next, in step 804, the program “prog.exe” is read from the auxiliary storage device 105 by the program code server 104 and transferred to the terminal device 107 via the network 112. The trigger for this transfer is
Depending on the request from the terminal device 107. Although the document data and the program code are transferred via the network, the document data and the program code may be read from an auxiliary storage device (not shown) directly connected to the terminal device 107. Next, in step 805, the program code "prog.exe" is given a name "user registration A" described in the program name 203, and is activated on the arithmetic unit 108. At this time, the module 205 called “start” in “prog.exe” is called. Next, step 80
In step 6, a module 206 named "showpage" in "prog.exe" is called with an argument "1". Next, in step 807, the module "showpage" 206
The “user registration A screen” 505 of “prog.exe” is displayed on the display device 109. Here, the user of the terminal device 107 uses the keyboard device 110 to input the specified information (in this case, his / her name) in the input field 506 of the “user registration A screen” 505. Next, in step 808, the user sets the mouse device 1
11 is clicked on the link character string 504. Next, in step 809, the document data "doc2.txt" (FIG. 3) indicated by the link character string 202 is displayed as shown in FIG. 6 by the same procedure as in steps 801 and 802. Next, in step 810, "doc2.txt"
The module “showpage” 304 described therein is called with an argument “2”. Next, in step 811, the “user registration A screen” 605 (FIG. 6) of “prog.exe” is displayed by the module “showpage” 304. Next, in step 812, when the user clicks the link character string 604, next, in step 813, "doc2.txt"
Document data "doc3.txt" described in the link character string in
Displays the screen of FIG. 7 in the same procedure as in steps 801 and 802. Next, step 814
Then, the module "finaliz" described in "doc3.txt"
e "403 and processes the character string input through the screen of" prog.exe "in steps 807 and 811. Next, in step 815, the module “stop” 405 described in “doc3.txt” is called,
Stop the execution of "prog.exe".

Note that the “prog.exe file” on the auxiliary storage device 105 is updated without updating the document data shown in FIGS.
By replacing the program data with another program code including a module having the same name as the module described in each document data, it is possible to change the display contents of the screens of FIGS. 5 to 7 or the type of input information. In this case, the modules included in each of the program codes before and after the replacement are limited to four, "start", "showpage", "finalize", and "stop".

[0017]

As described above, according to the present invention, the conventional W
In addition to the display function of the WW system, determining control procedures and contents other than starting and stopping other programs (or modules) depending on whether or not to display each of a plurality of document data or the order of displaying them. Can be. Further, different programs or modules that can be controlled by the same control information without updating the document data can be set as control targets.

This makes it possible to link the document data and the program over a plurality of pages, and to construct a business application or the like to which a WWW system is applied, such as a workflow for continuously processing by displaying a plurality of pages. And the like can be easily realized.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram showing an embodiment of the present invention.

FIG. 2 is a diagram illustrating a structure of document data of a first page.

FIG. 3 is a diagram showing a structure of document data of a second page.

FIG. 4 is a diagram illustrating a structure of document data of a third page.

FIG. 5 is a diagram illustrating an example of a screen displayed based on control information stored in document data of a first page.

FIG. 6 is a diagram illustrating an example of a screen displayed based on control information stored in document data of a second page.

FIG. 7 is a diagram illustrating an example of a screen displayed based on control information stored in document data of a third page.

FIG. 8 is a flowchart illustrating a flow of a document display process.

[Explanation of symbols]

101: document data server, 102: auxiliary storage device, 1
03: arithmetic unit, 104: program code server, 1
05: auxiliary storage device, 107: terminal device, 108: arithmetic device, 109: display device, 110: keyboard device, 111: mouse device.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5B069 BA03 BB16 BC02 CA13 LA03 5B076 AA12 DC00 5B082 EA07 5B089 GA12 GA21 JA01 JB02 JB07 KA01 LB01 LB14 LB22 5E501 AA13 AB16 BA05 DA02 FA06 FA42 FB34

Claims (3)

[Claims] 1. A document display system having document display processing means for reading document data and displaying it on a screen, wherein a plurality of pieces of control information for other processing means executable in parallel with the document display processing means are stored. Means for reading the control information from the received document data at the time of reading the document data, and control means for controlling the other processing means in accordance with the control information in parallel with the display or non-display processing of the document data. A document display system, wherein the control means determines the control procedure and contents of the other processing means according to whether or not to display each of the plurality of document data or the order in which the plurality of document data are displayed. 2. The document display system according to claim 1, further comprising means for transferring, via a network, a program code of another processing means which can be controlled by control information stored in the document data. 3. By using only unique and finite types of information as control information stored in the document data independently of the processing contents of other processing means to be controlled, the document data is 2. The document display system according to claim 1, wherein different processing units that can be controlled by the same control information without being updated are set as control targets.