JPH09222974A - Language interpretation display method, device and system using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extend the function of a device for displaying a picture constitution description language such as a hyper text mark-up language(HTML) while keeping low-order compatibility. SOLUTION: The extended function is embedded into the comment of HTML. An extension HTML viewer 200 interpretes the extended function out of this comment and performs extending processing. The viewer 200 receives the extension HTML sent through a network by a communication control part 102. A language interpretation part 106 has a standard statement interpretation part 112 for interpreting a standard function excepting for the comment and an extended statement interpretation part 214 for interpreting a description, in which the extended function is embedded, in the comment. Processing corresponding to the standard function is performed by a standard function processing part 120, and processing corresponding to the extended function is performed by an extended function processing part 224. The processing results are merged and displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a language interpretation display method and an apparatus and system using this method. The present invention particularly relates to a method, apparatus and system for interpreting and displaying information to be displayed on a screen when the information is provided in the form of a description in a screen configuration description language represented by a markup language such as HTML.

[0002]

2. Description of the Related Art In recent years, user interfaces (U
I), especially the graphical user interface (G
The enhanced UI has made it much easier for users to operate information devices such as computers. The GUI is an interface that represents objects (icons, parts such as control boxes, etc.) provided to the user as graphic symbols on the screen, and instead of the user inputting a long character string from the keyboard, the user clicks a button on the screen, for example. You can specify the object by clicking.
The GUI is designed in consideration of the visibility and the operation procedure, and generally greatly improves the work efficiency of the user.

On the other hand, however, there is also a demand for changing or expanding the function of this GUI. For example, when the user's device is portable and the screen is small, there is a case where it is desired to change the parts arrangement of the GUI provided in the default state.

Japanese Unexamined Patent Publication No. 6-4280 discloses a method of constructing a desired user interface by user's own operation. In view of the fact that the method of programming the GUI has been complicated and difficult,
It allows you to define and modify the type for each panel type (eg window or message box). A GUI editor that implements the method contains a user-modifiable GUI source code control file, which contains a tag file that defines the GUI. The tag file describes the GUI panel objects. Using these files, this method roughly includes the steps of opening the control file and editing the tag file in the control file. By this method, the user creates and reuses the desired GUI panel without performing complicated programming by himself.

On the other hand, Japanese Unexamined Patent Publication No. 6-110670 also discloses a UI customization method by a user. This method also requires users to write techniques, especially GU
The purpose is to relieve the trouble of learning the extended language that constitutes I. In this method, the operation of the extended language interpreter is interrupted by the instruction of "event acquisition" of the extended language to obtain the desired event, so that the user does not need to newly learn the extended language itself.

The above two conventional techniques are both aimed at changing or expanding the function of the UI. These technologies support changes of functions by users with little programming experience, but when services are provided through a network, for example, when services are provided via the Internet, the functions are: Different considerations are required for changes.

In user equipment on the Internet,
The screen configuration information itself including the GUI is HTML from the server.
It is sent as text described in a screen configuration description language called (Hyper Text Markup Language). HTML
Is a document structure description language SGML (Standard Generalized M
arkup Language) is a language defined as a type of
The basic function is the display of character strings, and it is possible to capture image data. That is, the server side generates a text according to the HTML grammar and sends it to the user device. The user device interprets this text according to the HTML grammar, displays the character string according to the specified arrangement, size, font, etc., and displays an image other than the character string. Since the screen is configured by this procedure, the functional expansion related to the screen display such as GUI is not a problem that can be handled only by the user device.

[0008]

There are still few concrete technical proposals regarding the function expansion related to screen display, which is premised on a network where a service is provided via a screen configuration description language. It is at the stage where the specifications of HTML itself are continuously examined.

As a general theory, when expanding the screen display function of the user device, a method of adding a new command to the current HTML can be considered. In this case, a command is added as a reserved word, the content of the command is judged by the parser (analysis program) of the user device, and the function expansion is realized.

However, such an extension causes a problem of backward compatibility. That is, while a user device that can handle a new command can properly interpret and display the command, a user device designed before that cannot interpret this command and the display can be abnormal. . In the worst case, the screen may become completely abnormal, and even the minimum screen display function as a GUI may not be fulfilled.

In PostScript, an extended function for reading the EPS file and displaying it in the bounding box may be described in the comment part.
However, this does not guarantee the backward compatibility of the device without the extended function interpreting means.

[Object] In view of the above situation, an object of the present invention is to provide a language interpretation display method, apparatus, and method for ensuring backward compatibility in a situation where information to be displayed on a screen is given by a screen configuration description language such as HTML. To provide a system. More specifically, a specific solution to the above problem is provided by disclosing the following technologies.

1. Basic technology for realizing backward compatibility and UI function expansion by using the comment part of the language. Tab function to improve screen visibility 3. 3. A function that handles the file name displayed on the screen as an object. 4. Function to provide fixed display area on the screen A function that paginates information given in the form of description in the language

[0014]

[Means for Solving the Problems]

(1) In the language interpretation display method of the present invention, the information to be displayed on the screen is provided in the form of a description including a comment in the screen configuration description language, and the comment is displayed based on only the part excluding the comment. It is assumed that the extension function is written so as not to affect the. Here, the “information to be displayed on the screen” may be in any data format such as text or image. The "screen configuration description language" describes the information to be displayed on the screen and the configuration such as its layout in the form of a language, for example, HTML. "The information to be displayed on the screen is provided in the form of the description in the screen configuration description language" means that it is sufficient if the information provided is included in that form, and can be directly displayed. Information given in data form may be mixed.

On this premise, the present invention first interprets the part of the language description excluding the comment and displays the information according to the content. At this time, further, among the comments included in the description of the language, the comment in which the extended function is embedded is identified, the extended function is interpreted, and the intended processing is performed according to the content. The "comment" is a description that is excluded from the display target when interpreting the language.
An example of the "extended function" is a tab function described later, but this may be any function. There is no problem even if this function is a calculation function not related to display. That is, normally, the screen configuration description language describes the information to be displayed on the screen, but the present invention incorporates an extended function to provide a way to use this for other than display.

In the present invention, an extended function is described in a comment, that is, a description that is not displayed at all, and the extended function is identified and interpreted, and the processing required to realize the function is performed according to the interpretation result. In the conventional method, a comment is simply treated as a comment and there is no room to consider it as a display target. Therefore, the presence of the comment in which the extended function is embedded does not adversely affect the display by the conventional device, and the backward compatibility is maintained.

(2) On the other hand, in the language interpretation display device of the present invention, the information to be displayed on the screen is provided in the form of a description including a comment in the screen configuration description language, and only the part excluding the comment is included in the comment. It is assumed that the extension function is described so as not to affect the display based on it. Under this premise, the apparatus includes a standard description interpreting means for interpreting a description part of the language description excluding a comment, a standard function processing means for performing various standard processes according to the interpretation content of the standard description interpreting means, and a language An extended description interpreting unit that identifies a comment in which an extended function is embedded among the comments included in the description and interprets the description; an extended function processing unit that performs various extended processes according to the interpretation content of the extended description interpreting unit; Display control means for controlling display on the screen based on a display generation instruction output as a result of various standard processing and a display generation instruction output as a result of processing related to display among the various extension processing.

In this configuration, first, the description part of the language excluding the comment is interpreted by the standard description interpreting means, and various standard processes are performed by the standard function processing means according to the content of the interpretation. The standard process corresponds to the process realized by the conventional language interpretation display device. In parallel with this process, among the comments included in the description of the language, the comment in which the extended function is embedded is identified by the extended description interpretation means, and the description is interpreted. Subsequently, various extension processes are performed by the extension function processing means in accordance with this interpretation content. The expansion process may be a calculation process that is not related to display. Thereafter, the display control means controls the display on the screen in accordance with the display generation instruction output as a result of the various standard processings and the display generation instruction output as a result of the processing related to the display among the various extension processings. . An example of the “display generation instruction” is a combination instruction of character string data to be displayed on the screen and position information data indicating where on the screen the character string should be displayed. When controlling the screen display from the two types of display generation instructions, first, the display generation instructions may be integrated. Here, “integration” means combining the display generation instructions of the two systems in order to obtain this screen configuration while assuming the final screen configuration. In the simplest example, from one display generation instruction, There is a process of overwriting the obtained screen display with the screen display obtained from the other display generation instruction. For example, according to the screen configuration determined in this way, the display on the screen is controlled and the desired display is performed.

(3) In one aspect of the language interpretation display device of the present invention, the extended function is an area provided in a display area, and the display content in the area is different from the display content outside the area. It includes a fixed display area setting function for providing a fixed display area that is not affected by the change even if it is changed. An example of the fixed display area is an area that does not scroll according to the movement of the cursor. However, this area itself does not always have to be stationary, and it is sufficient if it is not affected by changes in display contents such as screen scrolling in areas other than the area.

On this premise, the extended description interpreting means interprets the description concerning the fixed display area setting function, and the extended function processing means interprets the description from the interpretation result by the extended description interpreting means. The arrangement information of the fixed display area in the display area is acquired, and the area arrangement holding means for holding this information and the information to be displayed in the fixed display area are obtained from the result of the interpretation by the extended description interpretation means. Area display information holding means for holding the area information as area display information, and the extended function processing means provides the display control means with the arrangement information and the area display information as the display generation instruction.

In this configuration, when the description concerning the fixed display area setting function is read, the description is interpreted by the extended description interpreting means. Here, the arrangement information of the fixed display area in the display area is obtained and held by the area arrangement holding means from the interpreted result. This information is extracted in the form of an argument, for example. Subsequently, the information to be displayed in the fixed display area is acquired and held by the in-area display information holding means. These pieces of information are given to the display control means as a display generation instruction, and a desired screen display is performed.

(4) In another aspect of the language interpretation display device of the present invention, the extended function includes a tab function for setting the display start position for each information to be displayed on the screen.
The "tab" is the position (that is, the display start position) where the beginning of the information to be displayed (for each unit to be displayed, such as a character string or radio button), or the information to be displayed at that position. It has both dual meanings of actual placement.

Under this premise, the extended description interpreting means interprets the description of the tab function when it is read, and the extended function processing means interprets the tab position specification information from the result of the interpretation by the extended description interpreting means. To get
Designated tab position holding means for holding this, and display start position updating means for selecting and updating the display start position of the information to be displayed next time from the designated tab position each time the tab function is executed. The extended function processing means provides the display control means with the information to be displayed and the display start position thereof as the display generation instruction.

In this structure, when the description about the tab function is first read, the description is interpreted by the extended description interpreting means. Here, the specified information of the tab position, that is, the specified tab position is acquired and held by the specified tab position holding means from the interpretation result.

On the other hand, each time the tab function is actually executed (that is, every time the display start position is advanced), the display start position of the information to be displayed next is set to the specified tab position by the display start position updating means. It is selected from the inside and updated. The display control means is given the information to be displayed and the display start position thereof as the display generation instruction, and the desired screen display is performed.

(5) At this time, in one aspect of the present invention, the designated tab position holding means positions a predetermined position (for example, one end of the screen or a point at a certain distance from the one end) with respect to the entire area of the screen. An absolute tab position holding means for holding a designated tab position regarding a reference absolute tab, and a relative tab position holding means for holding a designated tab position regarding a relative tab whose positioning is based on a predetermined position regarding a partial area of the screen are included. The display start position updating means updates the display start position by changing the positioning reference according to whether the designated tab position is related to an absolute tab or relative tab. An example of the “partial area” is a rectangular area surrounding a plurality of radio buttons displayed on the screen. In this case, it is convenient to set the display start position of each radio button based on the predetermined position of the rectangular area.

In this configuration, if the designated tab position is related to the absolute tab, the information held in the absolute tab position holding means, and if the designated tab position is related to the relative tab, held in the relative tab position holding means. The information provided is used respectively. When calculating the display start position, the display start position updating means determines a predetermined position on the entire screen in the case of an absolute tab and a predetermined position in a partial area of the screen in the case of a relative tab, respectively, as a positioning reference (that is, in the calculation) Start point)

(6) In still another aspect of the present invention, the extended function includes a page layout function for page layout of information to be displayed according to a designated paper size. For example, when the information to be displayed on the screen is described in HTML,
There is no concept of page in this description. This is the function that gives this.

On this premise, the expanded function processing means is specified in order from the beginning the paper size acquisition means for acquiring the specified paper size from the result of the interpretation by the expanded description interpretation means and the information to be displayed from the top. By including the page allocation means for associating the information to be displayed with each page by dividing by the paper size, the extended function processing means instructs the display control means as the display generation instruction. Information to be displayed and corresponding information for each page are given.

In this configuration, first, the designated paper size is acquired by the paper size acquisition means, and the information to be displayed is sequentially divided from the top by the page layout means by this paper size. As a result, the information to be displayed is associated with each page. The display control means is given, as the display generation instruction, correspondence information between the information to be displayed and each page. For this reason, when a portion having the information to be displayed is displayed on the screen, a page including the portion can be displayed at the same time.

(7) In one aspect of the present invention, in (6), the extended function processing means actually uses the result of the interpretation performed by the extended description interpreting means to select one of a plurality of pages generated as a result of page allocation. The extended function processing unit includes a designated page holding unit that acquires a designation of a page to be displayed on the screen and retains the designation, and designates one of the information to be displayed as the display generation instruction to the display control unit. The information contained in the specified page is given.

In this configuration, when the description regarding the page layout function is read, the designation of the page to be actually displayed on the screen among the plurality of pages resulting from the page layout is acquired and held by the designated page holding means. .
Information included in the designated page of the information to be displayed is given to the display control means as the display generation instruction. Therefore, the page is displayed, and it is possible to facilitate the search and the like.

(8) In one aspect of the device of the present invention, the extended function includes an object setting function for instructing the device to retain it as an object designated by the name of a file referred to by the device. On this premise, the extended function processing means includes an object setting means that defines the specified file name as an object and holds this as an object thereafter.

According to this structure, for example, when a file name is displayed on the screen together with the structure of the directory, if the name of the displayed file is clicked to delete or move between directories, the object setting means is used. Such processing becomes possible.

(9) In one aspect of the present invention, the device of (8) receives a file to be referred from a file providing device. Under this premise, this apparatus is such that, when a file operation is instructed to a file name held as the object, a file operation instruction determination means for determining the instruction content, and the determined instruction content for the file providing apparatus. And a file operation instruction transmission means for transmitting the file operation instruction. Here, "to the file name" means that the file name is used as a cue or a file is selected by the name.

In this configuration, when a file operation such as moving a file is instructed with respect to the file names listed on the screen, for example, the instruction content is determined by the file operation instruction determining means, and the file operation instruction transmitting means. Is transmitted to the file providing device. As a result, the file providing device can actually perform the file operation.

(10) On the other hand, the language interpretation display system of the present invention includes a language interpretation display device and an information providing device for providing this device with information to be displayed on the screen in the form of a description in a language. This information providing device inserts a comment into the description in the language and provides it. In the comment, the extended function is described so as not to affect the display made based only on the part excluding the comment.

On this premise, the language interpretation display device interprets a description sentence instructing the device to hold the name of a file referred to by the device as an object among comments included in the description of the language. A description interpreting means, an extended function processing means for defining a specified file name as an object according to the description sentence, and holding the file name as an object thereafter, and a file operation is instructed to the file name held as the object. In this case, the file operation instruction determining means for determining the instruction content, and the file operation instruction transmitting means for transmitting the determined instruction content to the information providing device are included.

On the other hand, the information providing apparatus, according to the file operation instruction, file operation means for actually performing a file operation on the file referred to by the language interpretation display apparatus, and a screen display generated as a result of the file operation. A screen configuration information providing unit that updates the description in the language to reflect the change in the content and provides the updated description to the language interpretation display device. The screen configuration information providing unit includes, for example, a generation unit that generates a description in the language and a communication control unit that sends the generated description to the language interpretation display device.

In this structure, first, when a file operation is instructed on the file name on the language interpretation display device side, the content of this instruction is determined by the file operation instruction determining means, and this is determined by the file operation instruction transmitting means. It is transmitted to the providing device. According to the instruction, the information providing device firstly actually performs file operation by the file operating means on the file referred to by the language interpretation display device. Next, the means for providing screen configuration information is
The description in the language is updated to reflect the change in the screen display content occurring as a result of the file operation, and the updated description is provided to the language interpretation display device. As a result, the language interpretation display device can display a screen after an actual file operation such as file deletion is executed, that is, a list of files.

For example, in the case where the language interpretation display device is a user device and the information providing device also serves as a file server, the actual operation is performed on the server side even if the file is operated on the user device side. There must be. In this aspect, in order to maintain the file consistency between the user side and the server side, the server can actually operate the file according to the operation instruction.

[0042]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a language interpretation display method, apparatus and system of the present invention will be described with reference to the drawings as appropriate. In the following embodiments, HTML is used as an example of the screen configuration description language. HT the information that should be displayed on the screen
A device (or its program) provided in the form of ML text is called an "HTML server" or simply "server". A WWW (World Wide Web) server is an example.
On the other hand, the device (or its program) on the user side is HT
Since the ML is interpreted and displayed, it is called an "HTML viewer" or simply "viewer". A WWW browser is an example. In the following embodiment, the viewer is improved so that various extended functions can be executed.

Embodiment 1. In the present embodiment, a technique for expanding the screen display function while maintaining backward compatibility by using the comment part of the screen configuration description language will be described by taking a tab function for improving the visibility of the screen as an example.

[Background] In the conventional HTML, there is no command for realizing the tab function. Therefore, in order to arrange UI objects such as radio buttons and check boxes, it is necessary to insert a required number of spaces immediately before the UI objects on the server side to adjust the positions.
In the HTML specification, half-width spaces are ignored, so
A full-width space had to be inserted, and accurate alignment was a difficult and complicated task. Especially PDA (Personal
In the case of a viewer with a small screen size such as Digital Assistance), even if a space is provided to arrange radio buttons horizontally at a certain interval, it may be folded back at a place where it is not convenient in the middle, and it is very difficult from the viewpoint of appearance and visibility. It was inconvenient.

Therefore, the present embodiment aims to extend the HTML function and add a tab function to align UI objects such as radio buttons at specified tab positions.

[Principle of Solution] A tab script (tab command) is embedded in an HTML comment sentence. Conventional viewers ignore this part, so backward compatibility is ensured. Since the viewer according to the present embodiment can recognize the tab script in the comment, the tab is set according to the script.

[Details] [1] Overall System Configuration FIG. 1 is a diagram showing an example of a system configuration for implementing the present embodiment. As shown in the figure, this system is roughly classified into a device PDA2 on the user side, which is a language interpretation display device, and information provision for providing an HTML text corresponding to the device PDA2 (hereinafter also simply referred to as "extended HTML"). The device includes an extended HTML server 4, which is connected via a network 6 such as Ethernet. A viewer (hereinafter also referred to as “extended HTML viewer”) capable of interpreting and responding to the extended HTML is installed on the PDA 2, and the extended HTML server 4 and the extended HTML generation unit 22 that generates the extended HTML and the HTTPPD ( Hyper Text T
ransfer Protocal Daemon) 24 is installed. Extended H
The TML generation unit 22 uses an HTML template (not shown) as needed.

The PDA 2 is once connected to a proxy server (proxy server) 14 for PDA via a modem 8, a mobile phone 10 such as a PHS, and a public line 12, and is connected to the network 6 via the proxy server 14. PDA
2 may access the proxy server 14 directly by infrared rays 16. The proxy server 14 is a server connected to the end of the network 6 and the PDA 2
And function as a gateway. That is, extended HT
Extended HTM to be displayed on PDA 2 from ML server 4
On the other hand, the PDA 2 acts as an intermediary for passing the value selected by the viewer and the like to the extended HTML server 4.

A WWW server 18 and other various service devices 20 are also connected to the network 6. Examples of services provided by the various service devices 20 include print and fax. The extended HTML generation unit 22 converts the result given from these services into extended HTML, or generates extended HTML according to the result, and passes the extended HTML to the extended HTML viewer on the PDA 2 via the proxy server 14. Thus, the requested service is provided to PDA2. The HTTPD 24 passes the request or value from the viewer to the extended HTML generation unit 22 in the form of an event. On the other hand, the extended HTML generator 22 receives the extended HTML in the form of a function return value. In addition, extended HT
The ML server 4 manages the file system 26 described in the third embodiment.

[2] Configuration of Viewer FIG. 2 is an internal configuration diagram of the extended HTML viewer 100 of the PDA 2 according to this embodiment. As shown in FIG.
The TML viewer 100 is roughly classified into a communication control unit 1 that receives extended HTML from the network 6 in the form of a token.
02, a language interpreting unit 106 that is a language interpreting unit that interprets the received extended HTML, a standard function processing unit 120 that is a standard function processing unit that processes a description portion related to the standard function of the extended HTML that is similar to the conventional one, and a tab function of the extended HTML. In accordance with control from the display control unit 136 and the display control unit 136, which is a display control unit that controls the screen display in response to a display generation instruction from the tab processing unit 124 that processes the description portion related to the standard function processing unit 120 and the tab processing unit 124. It is composed of a display unit 138 that displays a screen.

The communication control section 102 has a receiving section 104 for controlling reception from the network 6, and this receiving section 104
Controls a receive buffer (not shown). Language interpretation unit 10
The token reading unit 108 of No. 6 receives the extended HTML received.
Is read out in token units, and this is read out by the comment identifying unit 11
Give to 0. The comment identifying unit 110 sets the token to H
It is decomposed into tags, which are units of description in TML, and the tag relating to the comment is identified from among these. Since the identified comment may describe the tab function, the comment is a tab statement interpretation unit 114 that interprets a tab statement that is a descriptive statement regarding the tab function.
On the other hand, the description other than the comment is a standard statement interpretation unit 11 which is a standard description interpretation means for interpreting a standard statement that is a description statement other than the extended function such as the tab function.
Handed over to 2.

The tab statement interpreting unit 114 has a tab statement identifying unit 116 for identifying a tab statement in the received comment and an argument extracting unit 118 for extracting an argument included in the tab statement. If there is a normal comment in which the tab function is not embedded among the received comments, the tab statement identifying unit 116 simply ignores it.

The standard function processing unit 120 has various standard processing units 122 that execute various standard processes according to the contents interpreted by the standard statement interpreting unit 112, and the various standard processing units 122 execute specific processes. It has processing units a, b ... With these processing units, the extended HTM
The same description as that of the conventional viewer is performed on the description portion of L that is equivalent to the conventional one.

On the other hand, the tab processing section 124 has various tab processing sections 126 for performing various tab processing according to the contents interpreted by the tab statement interpreting section 114. The various tab processing unit 126 has a designated tab position holding unit 130 as a designated tab position holding unit that acquires the argument as a designated tab position that specifies the tab position and holds the argument. The designated tab position holding unit 130 is further classified into an absolute tab position holding unit 132 and a relative tab position holding unit 134, which respectively hold tab positions according to tab types of absolute tab and relative tab described later.

Each tab processing unit 126 has a display start position updating unit 128 which is a display start position updating means for updating the display start position of the information to be displayed next time each time the tab function is executed. The display start position is updated by sequentially reading the designated tab positions held by the absolute tab position holding unit 132 or the relative tab position holding unit 134, as described later.

Standard function processing section 120 and tab processing section 1
A display generation instruction (for example, an instruction to display a rectangle in a predetermined area of the screen) output as a result of the processing in 24 is integrated in the display control unit 136, and the screen configuration is determined. More specifically, for example, first, the standard function processing unit 120
The virtual screen is configured based on the display generation instruction output from the display processing instruction, and the display content resulting from the display generation instruction output from the tab processing unit 124 is superimposed on the screen to form the final screen configuration. decide. Based on this final screen configuration
The display control unit 136 controls screen display, and a desired screen is displayed on the display unit 138.

[3] Operation of Configuration The operation of the above configuration will be described. Here, first
The operation of the viewer for normal HTML will be described in (1), and the operation of the viewer for extended HTML will be described in (2).

(1) Operation of Conventional HTML and Viewer FIG. 3 shows a conventional general HT for displaying three buttons.
FIG. 4 is a diagram showing a description example of ML, and FIG. 4 is a diagram showing a screen when the HTML of FIG. 3 is displayed by a conventional viewer or an extended HTML viewer according to the present embodiment. The HTML shown in FIG. 3 is displayed in the same manner in both the conventional viewer and the extended HTML viewer.

In FIG. 3, an 8-line HTML including a so-called header portion 60 and a body (body portion) 61 is described. The numbers at the left end of the figure are line numbers added for convenience,
It is not part of the HTML description.

The first and second rows of FIG. 3 form the header section 60. The unit of description in HTML is called a tag.
>>. <Aaa> is the start tag and </ aaa
a> is called an end tag, and the content of the process whose name is aaa is described between them. For example, <HE in the first line of FIG.
AD> is the start of the header section 60, </ HEAD> on the second line
Indicates the same end. Here, in the header section 60, this HTM
The title of L is defined as "Example0".

Next, the third to eighth lines are the text 61. "INPUT" in lines 4 to 6 is a reserved word indicating everything related to user input, and "TYPE" is a reserved word indicating a type (type such as text, check box, radio button). “Radio” indicates a radio button, and “radioset” is a name given to the radio button. Only one of the buttons having the same name can be pressed.

At line 7, there is a comment "End of sample 0". In HTML, <! --Aa
When a-> is written, the description of aaa is treated as a comment. In the case of FIG. 3, this comment is a normal comment in which the tab function is not embedded (hereinafter, simply referred to as “normal comment”, and the comment in which the extended function is embedded is referred to as “extended function comment”). The distinction between the normal comment and the extended function comment will be described in (2).

Now, consider the operation of the extended HTML viewer.

First, the communication control unit 102 sets the network 6
To receive the HTML of FIG. 3 in the form of tokens. The token reading unit 108 reads this token and gives it to the comment identifying unit 110.

The comment identifying unit 110 decomposes the token into tags and identifies tags related to comments from these. In the case of FIG. 3, since the comment does not appear up to the 6th line, the read HTML is passed to the standard statement interpretation unit 112. Standard statement interpretation part 11
2 interprets each statement on the 4th to 6th lines, and performs various kinds of known processing relating to "INPUT" and the like by the various standard processing units 122.

When the processing of the comment identifying unit 110 proceeds to the 7th line, a comment is detected, so this statement is passed to the tab statement interpreting unit 114 as it is. The tab statement interpretation unit 114 identifies the tab statement in which the tab function is described among the received comments. The tab statement identifying unit 116 recognizes that the received comment is not an extended function comment, and thus simply ignores it.

Finally, display is performed. In this example, since the display generation instruction is output only from the standard function processing unit 120,
The display control unit 136 simply determines the screen configuration according to lines 4 to 6 of FIG. 3, and displays it on the display unit 138.

FIG. 4 shows the actual screen display thus made. In FIG. 3, three buttons are described on different lines, but in reality, these are simply three buttons arranged sideways. This is because normal HTML does not have an instruction for explicitly performing a line break, and even if the line is divided into three lines as shown in FIG. 3, the line break cannot be performed.

Note that in FIG. 4, the user selects "fires".
When the button corresponding to "t" is pressed, the value "a1" is returned to the server, and the processing corresponding to the button is performed.

(2) Operation of extended HTML and viewer As described above, <! When written as --xxxx->, x
Since xx is treated as a comment, in this embodiment, an extended function, that is, a script for declaring a specified tab position and tab execution is embedded in this xxx part.

In the present embodiment, when xxx is a character string starting with%, it is determined that this comment is an extended function comment. That is, if “% ...” Appears in the comment sentence, the tab statement identifying unit 114 determines that the tab function is embedded, and passes the process to the tab processing unit 124.

FIG. 5 shows an extended HT for realizing the tab function.
FIG. 6 is a diagram showing a description example of ML (title is Example1), and FIG. 6 is a diagram showing a screen when the extended HTML of FIG. 5 is displayed by the extended HTML viewer according to the present embodiment.

In FIG. 5, the extended HTML is composed of the head portion 62 and the body 63 as in FIG. 3, but it should be noted that the comment portion <! It is to return to HTML exactly the same as that in FIG. 3 by removing all the -----> (excluding the meaningless seventh line in FIG. 3).

FIG. 5 shows an example in which only absolute tabs are set. The absolute tab is a tab whose positioning reference is one end (here, the left end) which is a predetermined position on the entire screen.
A description example of the combination of the absolute tab and the relative tab will be described later. The script related to the tab function introduced in FIG. 5 is as follows.

1. SETTABAREA FIG. 5, 2nd line (head part 62)
In the script added to, the specified tab position for absolute tabs (hereinafter referred to as "absolute tab position") is declared. (The relative tab position declaration is "SETRTA"
BAREA ", which will be described later).

"SETTABAREA" means "T" in the next item.
When actually executing the tab function in "ABAREA",
This means that the position of the tab is set (set). Here, the tab position TAB1 is set with an argument of 20%. The description form of the argument is as follows.

"10C" ... 10 character width (assuming fixed font)-"80P" ... 80-pixel width- "50%" ... 50% (that is, center) position from the left end of the screen to the screen width , "20%", the position where the screen width is advanced by 20% from the left end of the screen is the designated tab position. That is, the respective objects such as the buttons to be displayed are all arranged in the same designated tab position with the tops of the display aligned, as described later. The setting of a plurality of designated tab positions, TAB1, TAB2 ... Will be described later.

2. TABAREA The script added to the 5th line in Fig. 5 shows the above-mentioned SETT.
The range of the target to which the tab function is actually applied according to the setting by ABAREA is shown. That is, the start tag on line 5 to the end tag on line 9 is SETTABAREA.
, Which is the effective range of action, and the description in lines 6 to 8 receives the action.

3. TAB In the script added to lines 6 to 8 of FIG. 5, the display start position of the content to be displayed next is set to the above-mentioned SETTABAREA.
Is a script for instructing to proceed to the specified tab position by the inside of the device.

Now, consider the operation of the viewer. Regarding the operation of the extended HTML viewer according to this embodiment, only the part different from (1) will be described.

First, when the extended HTML of FIG. 5 is displayed by the conventional viewer, the display for the HTML of FIG. 3, that is, the same display as that of FIG. 4 is displayed. This is because the conventional viewer completely ignores the comment part, and as a result, backward compatibility is ensured.

On the other hand, in the extended HTML viewer according to this embodiment, when the comment identifying unit 110 reads “SETTABAREA” on the second line via the token reading unit 108, it identifies that this is a comment, and this statement Is passed to the tab statement interpretation unit 114.
The tab statement identifying unit 116 recognizes that this is a declaration of the absolute tab position by reading the character string following "<! ---%". At this time, the argument extracting unit 118 extracts TAB1 and its argument “20%”. The tab statement interpretation unit 114
1) Various tab processing units 1 using the data that the absolute tab position is set, 2) that only TAB1 is specified as the absolute tab position, and 3) that the argument of TAB1 is “20%”
Hand it over to 26. In the various tab processing units 126, the processing for the absolute tab position holding unit 132 is activated according to 1).
2) and 3) are passed to the absolute tab position holding unit 132 as necessary information. In the absolute tab position holding unit 132, when the display start position is actually updated later, this TA
“20%” is stored with TAB1 as an index so that the arguments B1 and 20% can be referred to.

Subsequently, when "TABAREA" on the fifth line is read, the tab processing unit 124 starts the T
It is recognized that the absolute tab position held in the absolute tab position holding unit 132 is used for updating the display start position until the ABAREA end tag appears (that is, up to the ninth line). When the “TAB” script is actually read in the first half of the sixth line, the tab statement interpretation unit 114 passes the processing to the display start position update unit 128 of the tab processing unit 124. The display start position updating unit 128 uses the absolute tab position TA
The argument 20% is read by using B1 as an index, the position of 20% with respect to the screen width is calculated, and then the display start position is advanced to the absolute tab position. Therefore, the "first" button described in the latter half of the sixth line is displayed from this display start position.

Moving to the seventh line, since the "TAB" script is still present, the display start position updating unit 128 tries to read the next absolute tab position TAB2. However, in this example, since only TAB1 is held, the display start position updating unit 128 reads the argument regarding TAB1 again. In this case, since the display start position is the same as the previous position, the display start position updating unit 128 of the present embodiment advances the display start position to the absolute tab position after the line feed (hereinafter referred to as “wrap process”). )I do. As a result, "s
The "econd" button is displayed below the "first" button. The same applies to the “third” button.

Thus, when the number of designated tab positions is smaller than the number of objects to be displayed (buttons in this case), a line feed operation occurs. Therefore, the line feed processing, which was impossible in the past, is implicitly executed, and the display of FIG. 6 is obtained. In the case of FIG. 6, in the screen frame 52, the screen width is 20 from the left end of the screen.
The three buttons are aligned vertically at the% position. By using such a tab function, it is possible to easily obtain a desired display state.

Although the tab position is set only by TAB1 here, if TAB1 to TAB4 are set, for example, the conventional viewer

[Table 1] ○ 1st ● 2nd ○ 3rd ○ 4th ○ AA ● AB ○ ABBC
C ○ ABC ○ 10000 ○ 1000 ○ 100 ● 10, such as UI object buttons grouped and displayed,

[Table 2] ○ 1st ● 2nd ○ 3rd ○ 4th ○ AA ● AB ○ ABBCC ○ ABC ○ 10000 ○ 1000 ○ 100 ● 10 can be arranged in an orderly manner. 1 in the table below
Regarding the line, when the "TAB" script first appears, the display start position updating unit 128 sets the display start position to TA.
Proceed to B1, where "○ 1st" is displayed. Subsequently, the display start position updating unit 128 internally advances the index, and prepares to refer to TAB2 when "TAB" appears next. As a result, "● 2nd" is TAB
The tab position designated by 2 is displayed as the display start position. Similarly, "? 3rd" and "? 4th" are displayed at the tab positions designated by the TABs 3 and 4, respectively. After this, T
Since there is no designated tab position AB5, the wrap processing is performed and the second line is displayed. The same applies to the third and fourth lines.

Next, the tab function using both the absolute tab and the relative tab will be described. The relative tab is a tab whose positioning reference is the left end of a partial area of the screen.
The relative tab functions as a cluster (object group) like a radio button or a check box, and is particularly useful when designating the arrangement of each display element within the cluster. The partial area of the screen itself can be determined by an absolute tab.

FIG. 7 is a description example of extended HTML using a combination of absolute tabs and relative tabs (title is Example.
2), and FIG. 8 is a view showing a screen on which the extended HTML of FIG. 7 is displayed by the viewer of this embodiment. As can be seen from FIG. 8, here, four buttons are displayed for each of “paper size” and “page number”.

Also in FIG. 7, the extended HTML is composed of a header portion 66 and a body 67. 7th-12th of body 67
Line is paper size (radio button name "paperSiz"
e)) relative tab effective operating range 68 (hereinafter simply referred to as “range 68”), lines 14 to 19 indicate the relative tab effective operating range 69 (hereinafter simply referred to as “radio button name“ Imposition ”) It is referred to as “range 69”). The new script introduced in FIG. 7 is as follows.

1. The script added to the second line of SETTRABAREA (head part 62) declares the position of the relative tab. "SETRTABA
"REA" sets a relative tab position when the tab function is actually executed in "RTABAREA" described later. Here, the two relative tab positions TAB1 and 2 are 5,
It is set with an argument of 55%, but this will be
Line and line 14 have been rewritten explicitly.

2. This is a script added to lines 7 and 14 of RTABAREA body 67. Normally, the range of the target on which the tab function should actually be actuated according to the setting by SETTRABAREA is shown, but here, the relative tab positions are changed on lines 7 and 14, respectively. That is, in the range 68, TAB1,
2 is reset to 10% and 60%, respectively, and in the range 69, it is reset to 10% and 55%, respectively. The relative tab position shown as a percentage is the width of each section delimited by adjacent absolute tab positions (when there is no absolute tab to the right of a certain absolute tab, the section from that absolute tab to the right edge of the screen). Defined as whole (100%). Specifically, points b to e and points e to h in FIG. 8 are each section, and the relative tab positions are determined with respect to these widths. However, TA
When the relative tab position is indicated by the number of characters or the number of pixels, such as B1 = "10C" or "80P", the relative tab position is set at the point 10 characters or 80 pixels to the right starting from the left end of each section. To be done.

Here, the operation of the viewer of this embodiment displaying from the extended HTML of FIG. 7 as shown in FIG. 8 will be described.

First, the relative tab positions are read from the header section 66 of FIG. 7 through the token reading section 108 and the comment identifying section 110, and TAB1 and TAB2 and their arguments "5%" are read.
“55%” is extracted, and these are relative tab position holding unit 1.
34.

Next, in the text 67, in the fifth line, "TAB
"AREA" is read. This script declares the beginning of the absolute tab scope, but it also sets the absolute tab position in the same statement. That is, the argument extraction unit 118 uses “TABAREA”.
, And their arguments "5
% ”And“ 40% ”are extracted and held in the absolute tab position holding unit 132. Note that TAB1 and 2
The above is only an index indicating the order of arguments to be read out when the "TAB" script is executed later, and is commonly used for both designation of an absolute tab position and a relative tab position. In any case, at this point, the absolute tab positions are set at two points (points b and e in FIG. 8) which are 5 and 40% of the entire screen.

Then, in line 6, "TAB" actually appears. Since the 6th line is in the effective range of the absolute tab starting from the 5th line, it can be seen that this "TAB" is an instruction regarding the absolute tab. Therefore, the display start position updating unit 128 selects the first “5” of the absolute tabs set previously.
% ”Is read, and the display start position is advanced from the left end of the screen to the position 5% (point b in FIG. 8).

Next, reading of the range 68 is started, and first, in line 7, "RTABAREA" instructs the start of the effective range of action for the relative tab. Here, "R
By explicitly describing TAB1 and TAB2 after "TABAREA", the relative tab positions used in this effective range are declared. The argument extraction unit 118 extracts the arguments “10%” and “60%” associated with TAB1 and TAB2, and these are stored in the relative tab position holding unit 134. Therefore, the second
The relative tab positions stored by the row are overwritten and updated at this point.

When the processing proceeds to the 8th line, "TAB" is displayed here.
Appears. The eighth line belongs to both the effective range for the absolute tab starting from the fifth line and the effective range for the relative tab starting from the seventh line. Therefore, this "TAB" first satisfies the condition regarding the absolute tab position by setting the point 5% from the right end of the screen (point b in FIG. 8) as the display start position, and then within points b to e in FIG. Advance the display start position to the relative tab position. Here, the process advances to point c in FIG. 8 corresponding to the first argument “10%” set in the seventh line as the relative tab position, and the paper size object button A5 described in the latter half of the eighth line is displayed. Below, No. 9
Each time "TAB" appears in line 11, the designated tab position is read in order from the relative tab position holding unit 134, the display start position is advanced, and the buttons A4, A3, A2 are displayed. Since only two relative tab positions, 10% and 60%, are set here, the button A4 is displayed at the position of 60%, and after the lap processing, the buttons A3 and A2 are again 10%,
It is displayed at the 60% position. Here, the processing of the range 68 ends.

When the processing shifts to the 13th line, "TAB" is given again.
Appears. The 13th line belongs only to the effective range of the absolute tab starting from the 5th line, so the display start position updating unit 128 sets the TAB2 set in the 5th line as the absolute tab position, that is, the position of 40% of the screen ( 8 point e)
Advance the display start position to. After that, the process enters the range 69, and "1 page" to "8 pages" are displayed at the positions of 10 and 55% between points e to h in FIG. The screen display of FIG. 8 is completed by the above processing.

Here, the processing procedure of the extended HTML viewer according to this embodiment will be summarized. FIG. 9 is a flowchart showing a processing procedure of the extended HTML viewer.

First, the viewer receives the extended HTML as a token through the network. The token reading unit 108 of the viewer first reads the token (S200),
After extracting the tags, the comment identifying unit 110 determines whether each tag is a comment (S20).
1). This determination can be made by checking whether the tag starts with "<! ---". If it is not a comment, the standard function processing unit 120 performs the same processing as the conventional one (S20).
2). If it is a comment, this is first accompanied by% "SET
It is determined whether or not the statement includes "TABAREA" or "TABAREA" (S203), and if any of them is included (Y of S203), the argument is extracted (S204), and the absolute tab position is held as an absolute tab position. It is held in the unit 132 (S205).

In the case of N in S203, the comment is%
With "SETR TABAREA" or "RTABA
REA ”is included (S206), and if any of them is included (Y in S206), an argument is extracted (S207), and this is held in the relative tab position holding unit 134 as a relative tab position (S208). ).

In the case of N in S206, the comment is%
It is determined whether or not a "TAB" with "is included" (S20).
9) If "TAB" is not included, this is ignored as a mere comment. If the comment includes "TAB" (S2
(Y of 09), the designated tab position TABn is acquired by reading from the absolute tab position holding unit 132 or the relative tab position holding unit 134 (S211). Where TABn is TAB
When returning to 1, lap processing is performed (S212).

Subsequently, the display start position is calculated (S2
13). If "TAB" is for an absolute tab,
The position is simply calculated from the left end of the entire screen, but if it is related to a relative tab, the position of the screen area determined from the absolute tab position is calculated first, and the calculation starting from the left end of this screen area is performed. After that, the items to be displayed are displayed from the display start position (S214). This series of processing indicates the end of the extended HTML, that is, the end of the text /
It is repeated until the BODY tag appears (S21).
5).

The above is the processing procedure. Note that the viewer of the present embodiment performs the wrap processing when the number of objects to be displayed by operating the tab function is larger than the number of designated tab positions. However, if the display position of the button is TABn
When "= 100C" or the like is specified, the wrap processing may be performed even when the character goes rightward by 100 characters from the current display start position and the display is off the screen. In this case, after starting a new line on the next line, the first specified tab position TAB
The above button may be displayed in 1.

[4] Generalization In the present embodiment, the viewer that implements the extended function has been described by taking the tab function as an example. Here, generalization regarding the extended function other than the tab will be considered. As is clear from the example of the above tab, the extension script to be written in the comment has the following form.

<! ---% XYZ ARG1 = "" arg
1 "...-> Here, XYZ is a script indicating an extended function, and the argument relating to this XYZ is arg1 or the like.
The extended HTML viewer performs a predetermined process according to the XYZ and the argument.

FIG. 10 is an internal block diagram of the generalized extended HTML viewer 200. In the figure, the same reference numerals are given to the same or equivalent configurations as in FIG.
Hereinafter, different configurations will be described.

The extended statement interpretation unit 214, which is an extended description interpretation means, not only performs the tab statement but also the above X
An extended statement identifying unit 21 for interpreting a statement including an extended function such as YZ (hereinafter referred to as "extended statement") and identifying an extended statement.
6 and an argument extraction unit 2 that extracts the arguments such as arg1 described above.
18 inclusive.

The extended function processing section 224, which is an extended function processing means for performing processing related to the extended function, receives the contents of the statement and the arguments from the extended statement interpretation section 214 and performs the extended function processing specified in the extended HTML.

The extended function processing section 224 has various extended processing sections 226 according to the extended functions to be realized, and the various extended processing sections 226 further include a display-related processing section 250 for outputting the processing result as a display generation instruction. , And the other display-unrelated processing units 252. The display-related processing unit 250 is configured by processing units s, t ... Responsible for each processing unit s, t ..., For example, a display start position updating unit referred to as a tab function, and similarly the display-unrelated processing unit 252 is also a processing unit. have u ... As an example of processing in the display non-related processing unit 252,
Arithmetic processing such as real number calculation performed inside the extended HTML viewer can be considered. For example, as the above-mentioned XYZ, "AD
By adding real numbers to the "D" script, arg1,2, the sums for these arguments can be calculated.
When a function is inserted instead of "ADD", it is possible to calculate the function value. In addition, various processing not directly related to the display content is displayed.
2 can be performed.

The display control unit 236 includes the standard function processing unit 12
The display generation instruction given from 0 and the extended function processing unit 22
6, the display generation instructions given from the display-related processing unit 250 are integrated, the screen configuration is determined, and the display of the screen by the display unit 138 is controlled according to this screen configuration. on the other hand,
The output of the display-unrelated processing unit 252 is given to various control units 254 other than the display, and the hardware or program necessary for the processing is controlled. In the case of the above-mentioned "ADD", arithmetic processing hardware such as ALU of CPU is controlled.

The operation of the above configuration will be described with reference to a flowchart. FIG. 11 is a flowchart showing the generalized processing procedure of the extended HTML. In the figure, the same steps as those in FIG. 9 are given the same step numbers, and description thereof will be omitted as appropriate.

First, if the tag relates to a comment (Y in S201), it is determined whether or not this comment is an extended function comment based on the presence or absence of "%" (S30).
3). If it is not an extension comment, it is a normal comment and is ignored. If it's an extension comment,
The contents of the extension statement are interpreted (S305), and the arguments are extracted (S306). At this time, it is judged from the interpretation of the description contents whether this extended function is related to display (S
307), if related, the display-related processing unit 250 performs processing (S308), controls the display based on the output of the processing (S309), and displays the desired display (S31).
0).

On the other hand, if it is determined from the interpretation of the description contents that this extended function is not related to display, the processing moves to the display non-related processing unit 252 (S311), and various controls other than display are performed (S312). . The above processing is extended HTML
Is repeated until the reading of is completed (S215).

Embodiment 2. In this embodiment, as another extended function, a method and apparatus for providing a fixed display area in a part of the screen will be described.

[Background] When displaying a UI that can be operated by the user at an arbitrary timing, such as a "register button", it is convenient if this UI stays on the screen even if the displayed HTML document scrolls. is there. Especially PD
When a long document is displayed on a device with a small screen such as A, if the registration button is provided at the end of the document, the user must scroll the screen to the end and press it. This is exactly the harmful effect of the conventional general viewer, and the essential cause thereof is that the conventional viewer displays one HTML document as one. In this embodiment, as one of the extended functions, a fixed display area that does not scroll is provided in the screen to solve this problem.

[Solution Principle] A new script is embedded in an HTML comment sentence. Since the viewer according to this embodiment can recognize this script, a fixed display area is provided according to the script. A system configuration example may be as shown in FIG.

[Details] [1] Description example of extended HTML FIG. 12 is a description example of extended HTML for realizing a fixed display area. Here, as in the first embodiment, <! ---
A new extension script is included in the comment indicated by->. "SETFIXEDAREA" on the second line and "FIXEDAREA" on the fifth line are two extended scripts used in this embodiment.

[0119] 1. SETFIXEDAREA This is a declarative statement that specifies information about the arrangement of the fixed display area, that is, the size indicating the height of the fixed display area (SIZE) and the position on the screen where the area should be placed (ALIGN) by arguments. The size is described as 10C, 80P, 50% as in the tab of the first embodiment. On the other hand, as for the position, whether the fixed display area is provided on the top, bottom, left, or right of the screen is determined by "top", "bottom", "left", "r"
It is described as "light" or the like. Therefore, in the case of FIG. 12, the generation of the fixed display area of 200 pixels in height is instructed based on the bottom of the screen.

[0120] 2. FIXEDAREA The effective tag range is indicated by the start tag on the fifth line and the end tag on the seventh line, and the display based on the description in this range is performed in the fixed display area. In this example, the submit type "return to home" button in the 6th row corresponds to this. In the case of a conventional viewer, only the sixth line of the text is interpreted and a "return to home" button is displayed in the normal screen area.

Hereinafter, a statement including any of these scripts will be referred to as a fixed display statement.

[2] Configuration of Viewer FIG. 13 is an internal configuration diagram of the extended HTML viewer 300 according to this embodiment. In the figure, the same components as those in FIGS.

The feature of the configuration in the figure is as a specific example of the extended statement interpretation unit 214 of FIG. 10 as a specific example of the fixed display statement interpretation unit 314 and extended function processing unit 224 that interpret the description regarding the setting of the fixed display area. A fixed display processing unit 324 that executes a process related to setting a fixed display area is provided.

The fixed display statement interpretation unit 314
It has a fixed display statement identification unit 316 that identifies whether the statement given from the comment identification unit 110 is a fixed display statement, and an argument extraction unit 318 that extracts arguments relating to SIZE and ALIGN from the fixed display statement.

On the other hand, the fixed display processing section 324 has various fixed display processing sections 326, and the various fixed display processing sections 326 have an area arrangement holding section 328 which is an area arrangement holding means for holding information regarding the arrangement of fixed display areas. And an in-area display information holding unit 330 which is an in-area display information holding means for acquiring and holding information to be displayed in the fixed display area. The area layout holding unit 328 uses the SIZE and AL described above.
The layout of the fixed display area is determined based on the argument of IGN, and this is given to the display control unit 336 as a display generation instruction. This display generation instruction is always given with the same contents so that the display movement instruction does not move with the movement of the cursor, and the display generation instruction is changed to the display generation instruction given from the standard function processing unit 120 (this content changes depending on the movement of the cursor). Will be overwritten.

On the other hand, the in-area display information holding section 330 acquires display target information such as buttons to be displayed in the fixed display area fixedly displayed in this way from the description of the extended HTML and uses this as a display generation instruction. It is given to the display control unit 336.

[3] Operation of Configuration The operation of the above configuration will be described with reference to a flowchart. FIG. 14 is a flowchart showing the processing procedure of the extended HTML viewer 300 of this embodiment. In the figure, the description of the steps already described is omitted as appropriate.

Similar to FIG. 11 etc., the tag is cut out from the read token and it is judged whether or not the tag is related to the comment. If the tag relates to a comment, the fixed display statement identification unit 316 determines whether the statement includes "SETFIXEDAREA" (S402).

The statement reads “SETFIXEDAR
If EA ”is included, the arguments given to SIZE and ALIGN are extracted by the argument extraction unit, and these are stored in the area layout holding unit 32.
8 (S403). Subsequently, a display generation instruction regarding the fixed display area to be displayed on the screen is output from these arguments to the display control unit 336, and the fixed display area is displayed (S404).

On the other hand, the statement "SETFIXE
If "DAREA" is not included, then "FIXEDAREA"
It is determined whether or not is included (S405). "FIXE
If "DAREA" is included, the information to be displayed in the fixed display area is acquired by the area display information holding unit 330, and these are actually displayed in the area (S406). The above process is repeated until the reading of the extended HTML is completed (S215).

15 and 16 are views showing the difference in display image depending on the presence or absence of the extended function of this embodiment. FIG.
Shows the extended HTML of FIG. 12 displayed by a conventional viewer, and FIG. 16 shows it by the viewer according to the present embodiment. In FIG. 16, a fixed display area 70 is provided at the bottom of the screen,
A registration button such as "return to home" is displayed in this area. Since these buttons do not scroll, they do not scroll off the screen along with other text as in the case of FIG. As a result, it is possible to improve the convenience of the user.

In the present embodiment, "SETFIXED
It is implicitly assumed that "AREA" always appears before "FIXEDAREA", but some users may want to always display the fixed display area in a fixed arrangement. In such a case, "SETFI" is added in the extended HTML.
"XEDAREA" is not described, and for example, SIZE and ALIG determined by the system program when the PDA is started.
The configuration may be such that N is read and this is held in the area arrangement holding unit 328 as a default value. In this case, the viewer once reads the entire extended HTML, and executes "SETFIX
Search for the presence or absence of "EDAREA" and "FIXEDAREA". When only the latter of these exists, the default value is used, and when only the former exists, the fixed display area is not displayed and normal display may be performed.

Embodiment 3. In the third embodiment, as another extended function, a viewer that handles the name of a file displayed on the screen as an object, and a file service that actually operates a file according to a file operation instruction by the viewer and generates an HTML regarding new file information. A system including a server will be described.

[Background] As disclosed in Japanese Patent Application Laid-Open No. 1-258147, in a general electronic filing system, consideration should be given to easily moving and copying files between directories (hierarchies) using a GUI. Has been done. An example is moving a file by dragging and dropping the file name.

However, HTML is a language developed for the purpose of screen display, and although directories and files can be displayed as list images, they are not treated as objects. Therefore, it is impossible to specify a directory or a file by moving the cursor and to perform an operation such as drag and drop. In the present embodiment, the functions of HTML and viewer are extended to handle the file name as an object to improve the GUI function.

[Principle of Solution] A new script is embedded in an HTML comment sentence. The new viewer according to the present embodiment handles the file name as an object according to the script. Thereafter, operations for files, that is, movement, copying, deletion, printing, fax transmission, etc. (hereinafter simply referred to as “moving etc.”) are realized by the same method as the conventional electronic filing system.

On the other hand, on the file server side, when an instruction to move or the like is received from the viewer, the file system is accessed to actually move or the like. Further, the extended HTML is rewritten according to the file arrangement after the movement and the like, and this is sent to the viewer.

[Details] [1] System Configuration An example of a system configuration for realizing the present embodiment will be described with reference to FIG. In this embodiment, the extended HTML server 4 also serves as a file server. Extended HTML server 4
Manages a file system 26 having various files. The control related to the file is performed by the file operation CGI program incorporated in the extended HTML generation unit 22.

[2] Description Example of Extended HTML FIG. 17 shows an example of the extended HTML (title is Example4) in which the viewer describes the file name as a UI object. This extended HTML is 3
One file name, Doc1 to 3 are displayed together with three icon images Icon1 to 3, and new scripts to be introduced are "OBJECT" and "IC".
ONn "(n = 1, 2 ...). However, "ICON
“N” is used to enhance the visibility of the file name selected by the user, and is not essential for making the file name an object.

1. OBJECT Instructs to handle the information such as buttons described during this period from the start tag on the 4th line to the end tag on the 10th line as the effective range. The fourth line, "WIDT
H = “100P” ”is the width of the box (hereinafter referred to as“ object display box ”) for displaying the information handled as an object on the screen as argument 100P (10
Specify 0 pixels). This designation may be the number of characters such as "100C". Similarly, "HEIGHT" specifies the height of the object display box. "IMAG
“E” selects the display image of the object display box from a plurality of images held in advance, and the first image is selected here. The first image is the object display box 80 shown in FIG.
It is a white box with rounded corners. In addition,
It is well known how to retain an object once defined as an object and use it thereafter.

[0141] 2. Different icon images are displayed according to ICONn n = 1, 2. At the same time, each ICONn is linked to the file name described between the start tag and the end tag of ICONn, and when the file name is subsequently selected, this IC
The display state of ONn changes. In the case of FIG. 17, for example, in the seventh line, the file name “Doc2” is ICON2.
Linked to.

In addition to these scripts, FIG. 17 shows a normal HTML script "SELEC".
“T” and “OPTION” are described. The former is an instruction to select arbitrary information from the information described in the effective range, and the latter is an explicit information that can be selected. For actually selected information, the server selects "SELECTED". Is added and HTML is sent. Here, "Doc1" is selected.

FIG. 18 shows a screen display when the extended HTML of FIG. 17 is actually displayed by the extended HTML viewer of this embodiment. As will be described later, the names of the three files are held as objects at this point. Therefore, it is possible to move the file name for each icon to another place by clicking, for example, Doc1. On the other hand, when the same extended HTML is displayed by a conventional viewer, “Doc1 Doc2 Doc3” is displayed without icons and object display boxes, and among these, Doc1 is highlighted by inversion or the like. They cannot be moved by clicking.

[3] Configuration of Viewer FIG. 19 is an internal configuration diagram of the extended HTML viewer 400 according to this embodiment. As shown in the figure, the new configuration is roughly classified, and the description about the object setting (the above-mentioned “OBJ
ECT ”), an object setting statement interpretation unit 414, an object processing unit 424 that actually performs processing related to an object such as object setting, and a file operation processing unit 432 that processes an operation on a file based on a file name.

Object setting statement interpreter 4
14 has an object setting statement identifying unit 416 for identifying whether or not "OBJECT" is embedded in a comment, and an argument extracting unit 418 for extracting an argument included in this "OBJECT" statement.

The object processing section 424 includes various object processing sections 426, and various object processing sections 42.
6 is an object setting section 4 which is an object setting means.
28 and a movement calculation unit 430. The former is "OBJEC
According to the "T" and "ICONn" statements, ICO
The file name is defined as an object after linking the file name to Nn, and this is retained as an object thereafter. The latter is an object accompanying the movement of the cursor when this object is selected by clicking or the like. Position calculation.

The file operation processing section 432 is a file operation instruction determining means for determining these file operation instructions when the user tries to copy or move a file to another directory by dragging and dropping or the like. A file operation instruction transmission unit 436 which is a file operation instruction transmission unit that transmits the instruction determination unit 434 and the extended HTML server that manages the file.
With. In the present embodiment, the file operation instruction to be transmitted is given to the communication control unit 402, and the instruction is given to the server from here via the network.

[4] Operation of Configuration The operation of the above configuration will be described with reference to a flowchart. FIG. 20 is a flowchart showing the processing procedure of the extended HTML viewer of this embodiment. The processing operation including the server side will be described later.

Similar to FIG. 11 and the like, first, if the tag is related to a comment, it is determined whether or not it includes "OBJECT" (S502). The statement reads "OBJEC
If "T" is included, the argument given to the WIDTH or the like is extracted by the argument extraction unit (S503), and the object display box is displayed based on these (S504).

On the other hand, the statement is "OBJECT".
If not included, it is determined whether “ICONn” is included (S505). If "ICONn" is included, the object setting unit 428 links the icon and the file name described in the effective range of the icon tag to hold this link information (S506), and defines the file name as an object. (S507). Then, the icon and the name of the file are displayed in the object display box (S508). The above processing is repeated until the reading of the extended HTML is completed (S21).
5).

By this processing, the file name is changed to the UI
It becomes possible to click as an object.

21 and 22 are diagrams showing a procedure for operating a file on the viewer's actual screen. In both figures,
A directory (called a transfer source directory) in which an original file such as a file is now moved is displayed as a "path name", and files in this directory are displayed in a list format in the normal display area 82. On the other hand, the fixed display area 84 described in the second embodiment is provided at the bottom of the screen. Various operations for files are provided as buttons in the fixed display area 84 of FIG. On the other hand, FIG.
In the fixed display area 84, the candidates for the transfer destination directory are displayed.

In this screen structure, the user uses the anchor button or the like to trace the directory to reach the desired transfer source directory. Here we have reached "ABC" under "HD".

Here, the user selects a process. For example, when "Copy" is selected, the fixed display area 84 shown in FIG. 22 appears, and the user carries the file to be copied to the intended directory of the fixed display area 84 by dragging and dropping and copying it. In fact, by pressing a submit button (not shown) that appears after this, the fact that copying should be done is sent to the server.

On the other hand, the server that receives the transmission actually operates the file. Broadly speaking, if the user's instructions are “move”, “copy”, “delete”, and “name change” operations, the file system operation is performed, and if “print” or “fax”, the file service operation is performed. Since the arrangement of files on the screen display changes due to the file system operation, the server updates the HTML describing the directory structure according to the contents of its operation and sends it to the viewer. As a result, the viewer can display the list image in which the movement of the file is reflected.

FIG. 23 is a flow chart showing the cooperation between the viewer and the server in this embodiment. The processing on the server side is performed by the aforementioned CGI program.

In the figure, first, the viewer designates a directory to be referred to (S600). This designation is notified to the server by pressing the execute button (submit button), and the server acquires directory information such as the name of the file included in the directory (S601).
The server follows this information and the fixed display area 84 of FIG.
Generates extended HTML for realizing (S60
2). Next, the names of the files are extracted from the directory information and listed, and as shown in FIG. 18, an icon image to be given to each file name is selected (S603). After this, the server sends the O
Extended HTML including BJECT and ICON script is generated (S604), and this is sent to the viewer.

On the other hand, the viewer interprets the received extended HTML according to the procedure of FIG. 20 (S605) and sets the necessary objects (S606). After that, the operation is awaited by the user.

When the user actually clicks the icon, the viewer calculates the movement of the object associated with the file operation, that is, the file name (S607), detects the name of the file that is the operation target, and the movement position thereof, Obtain information necessary for actual file operations, such as the transfer destination directory. At the same time, the file operation instruction determination unit 434
Then, the contents of the file operation instruction are determined (S608), and this is transmitted to the server via the file operation instruction transmission unit 436 together with the information necessary for the file operation. The server actually operates the file according to the instruction contents (S609), and according to the result, for example, modifies the extended HTML so that the name of the file to be deleted disappears from the list (S610) and sends it to the viewer. The viewer interprets and displays this extended HTML (S611), and a series of processing ends.

The above is the description of the present embodiment. According to this embodiment, it is possible to realize, on a PDA, an advanced GUI that has been conventionally used on a personal computer.

Embodiment 4. In this embodiment, as another extended function, page layout is performed on the HTML document displayed on the screen.

[Background] Japanese Patent Publication No. 5-57625 discloses a document information display method for sequentially displaying only pages desired by a user among a plurality of documents retrieved according to a predetermined key. However, since this method targets a general database, it cannot always correctly display a file created by a plurality of application programs like a file system. This is because the format of the document is different, which causes a problem such as a page position shift. Particularly, in the case of a viewer that receives HTML from a server and displays it, page-by-page display is completely impossible. This is because there is no concept of page in HTML, and there is one for the entire document. For this reason, it is very inconvenient when only the 10th page of a plurality of HTML documents is to be displayed and checked, or when it is desired to check the print image when printing on a specific size (for example, A4) paper. The present embodiment solves this problem, and provides a viewer, such as A4 or B5, which performs page layout on a document based on the paper size.

[Principle of Solving] The new script embedded in the comment sentence receives the designation of the paper size at the time of page layout and the designation of the page to be actually displayed after layout. The viewer according to the present embodiment interprets this script and prompts the user to input a designation. When the designation is input, when the HTML document is actually read to create the screen layout, the page layout is performed according to the paper size designated in the apparatus. Then, the specified page is displayed on the screen.

[Details] [1] System Configuration The system configuration is the same as in FIG. Here, consider the case where the system of FIG. 1 is used as a file search system. The extended HTML server 4 in the figure also serves as a file search server. In this system, when the user wants to search for a file, the extended HTML server 4 searches the file system 26 for a file according to the search key. The search results are sent from the server to the viewer and displayed as a list. The user specifies the name of the file to be actually displayed on the screen from the files displayed in the list. In the present embodiment, it is assumed that the processing up to this point has been completed, and thereafter, page allocation to the designated file and display of pages to be actually viewed among the pages after allocation are performed.

[2] Example of description of extended HTML FIG. 24 shows an example of extended HTML that realizes designation of a paper size as a calculation standard for page allocation and a page to be actually viewed (hereinafter referred to as “reference page”) (title. Is Exampl
e5). The new scripts introduced here are "SETAPER" for designating the paper size and "GOPAGE" for designating the reference page.

1. SETPAPER Paper size is "A4" led by "OPTION" tag
It is possible to select from "B5", "B4", and "postcard", and these four paper sizes are displayed on the screen as a menu. In other words, this tag can be selected not only for display but also for giving a paper size to the viewer when calculating page layout. In FIG. 24, A4 has already been selected, and the server has sent the HTML with "SELECTED" to the viewer in accordance with this selection. As a result, “A4” is highlighted on the screen. The user can specify or change the paper size, these instructions are transmitted to the server, and the extended HTML is changed. The eighth
The line is an example of a user customizable tag, which allows the user to enter the desired "WIDTH", "HEIGHT" and paper name. Here, "postcard" is set.

2. GOPAGE Described in line 10 of FIG. As with "SETAPER", "GOPAGE" not only displays the currently specified reference page number, but also accepts new specification input and, when displaying by the viewer, the reference page number to be displayed to the viewer. give. The specified reference page is "SET =" n "" after "GOPAGE".
Is reflected in n. Here, three pages have already been specified. In the initial state that is not specified, SE of GOPAGE
T has no arguments.

[3] Configuration of Viewer FIG. 25 is an internal configuration diagram of the extended HTML viewer 500 according to this embodiment. As shown in the figure, the new configuration is roughly classified and description about pages such as page allocation (see “S
ETPAPER "and" GOPAGE ") and a page-related statement interpreting unit 514, and a page-related processing unit 52 that actually performs a page-related process such as page allocation.
4.

Page-related statement interpretation unit 514
Commented "SET APPER" or "GOPA
A page-related statement identifying unit 516 for identifying whether or not "GE" is embedded, and an argument extracting unit 51 for extracting an argument included in the "GOPAGE" statement.
Holds 8.

The page-related processing unit 524 includes various page-related processing units 526, and the various page-related processing units 526 include
A paper size acquisition unit 528, which is a paper size acquisition unit that acquires a reference paper size upon page allocation, a page allocation unit 530, which is a page allocation unit that actually performs page allocation based on this paper size, and a result of page allocation. It has a designated page holding unit 532 that is a designated page holding unit that holds designation of a page to be actually displayed on the screen among a plurality of pages. The paper size acquisition unit 528 is “SETPAPER”.
The paper size selected by the user is acquired and held.

The page allocating unit 530 divides the HTML document to be processed by the paper size to perform page allocation, and thereafter holds, for example, the data at the beginning of each page. When using page layout for prior confirmation of printing, the page layout unit 530 acquires print information such as font size and line spacing at the time of printing, and performs page layout by taking this information into consideration. The print information may be entered by the user or the PDA
It may be used by reading it from the management data of the print control program built in. Based on the layout information obtained in this way, the page layout unit 530 can recognize which page contains an arbitrary part of the original HTML document.

The designated page holding unit 532 stores "GOPAG
Reference page number specified for "E" (GOPAG
Holds the E tag argument). From the specified page and the data held in the page allocating unit 530, the HTML
The part of the document that should be actually displayed on the screen and its contents are identified.

[4] Operation of Configuration The operation of the above configuration will be described with reference to a flowchart. FIG. 26 is a flowchart showing the processing procedure of the extended HTML viewer of this embodiment.

As in FIG. 11 and the like, first, if the tag is related to a comment, it is determined whether or not the statement includes "SETAPPER" (S702). If the statement includes "SETAPER", the paper size is stored in the paper size acquisition unit 528, and the print information such as the font size is acquired (S703).
Here, page allocation is performed based on the paper size and the print information (S704), and while the reference page is not specified,
For example, the first page of the HTML document is displayed. After that, the paper size selection menu is displayed in, for example, the fixed display area (S705), and the input from the user is accepted.

On the other hand, the statement is "SETPA
If "PER" is not included, it is determined whether "GOPAGE" is included (S706). If "GOPAGE" is included, it is determined whether the reference page is designated by "SET =" n "" (S707). When it is designated, the designated page is displayed on the screen (S708).
At this time, in order to create a more accurate print image, the text data may be converted into image data with reference to the print information such as the font size and then displayed.
After this display, a page designation menu is displayed to accept designation of a reference page (S709). If the reference page is not designated in S707, the page designation menu is simply displayed. At this time, an arbitrary page such as the first page may be displayed on the screen. If only the reference page is specified without specifying the paper size,
The HTML document may be displayed by a method similar to the conventional method.
The above processing is performed until the reading of the extended HTML is completed.

FIG. 27 is an example of a screen display by the viewer of this embodiment. In the figure, a normal display area 86 is provided at the center of the screen, and a fixed display area 88 is provided at the bottom of the screen. The fixed display area 88 has a designated page and a UI for designating the paper size, and “1 page” and “A4” are designated respectively.
According to this designation, the searched file is displayed in the display area 86.
Is displayed in. This matches the printed image.

The "previous candidate" and "next candidate" provided on the right side of the fixed display area 88 correspond to the currently displayed file.
It is used to display the files that come before and after the search order. For example, in order to sequentially check one page of a plurality of searched files, the first file found in the search may be displayed, and thereafter, the “next candidate” button may simply be pressed.

The outline of the fourth embodiment has been described above. In this embodiment, the page allocation is performed by the viewer, but this may be done by the server side. In this case, the designation of the reference page and the paper size is received from the viewer as an action, and page allocation processing equivalent to the viewer of this embodiment is performed in the server. For the viewer, only the page to be displayed needs to be sent as image data.

Other Embodiments In addition to the first to fourth embodiments, the following extended functions can be realized by combining extended HTML and a new viewer.

1. Dialog function When displaying an error display such as "input error" or a short message, the dialog box is overwritten on a part of the screen while maintaining the currently displayed screen. In normal HTML, even if a part of the screen is changed, the entire screen is updated, and therefore it is not possible to overwrite the previous screen. Therefore, according to the present invention, the dialog area is described by an extension script so that this partial overwriting is possible.
When reviewing the error content, it is more useful if the previous screen remains so that there is no sense of incongruity and there is no interruption of thought.

2. Definition function of customization unit of UI parts According to the first embodiment, by using a relative tab, a plurality of U
I-parts can be defined as clusters. Therefore, it is possible to introduce a new extended function script so as to surround such a cluster and use the cluster as a unit of customization (that is, user operation such as deletion, modification, addition). In this case, deletion or the like is performed for each cluster.

3. Justify function By introducing the Justify function as an extended function, the layout can be improved. This function improves the visibility even for a viewer with a small screen such as a PDA.

In each of the embodiments of the present specification, it is assumed that the extended function is embedded in the comment. This is a consideration for backward compatibility, but if it is not necessary to take this into consideration, a method of adding each extended function script of "TAB" as a standard script such as "SELECT" can be considered. In this case, <! --- TAB-
Instead of describing->, it may be simply described as <TAB>.

[0184]

According to the language interpretation display method of the present invention, since the extended function is described in the comment, it is possible to extend the function of the language interpretation display device while ensuring backward compatibility. The present invention assumes that the information to be displayed on the screen is given by the screen configuration description language.
It is widely applicable to the Internet using ML. For example, in the case of displaying HTML in a viewer, it has been very complicated and difficult to compose a complicated screen and customize the UI displayed on the screen in the past, but the present invention greatly improves these. Is brought about.

On the other hand, according to the language interpretation display device of the present invention, it is possible to expand the function using the language interpretation display method. The user does not need to perform programming to implement the extended function by this device.

When the language interpretation display device supports the fixed display area setting function, when a long document or the like is displayed, the displayed contents are scrolled or the like in order to press the button provided at the beginning or end of the document. Workability is improved because there is no need to change.

When the language interpretation display device supports the tab function, display units such as object buttons can be arranged, and the visibility of the screen is improved.

When an absolute tab and a relative tab are provided as tabs, a complicated screen structure such as a cluster composed of a plurality of object buttons can be easily realized.

When the language interpretation display device is compatible with the page layout function, it becomes easy to give the concept of page to the document and to confirm the print image when printing the document.

At this time, further, in the case where the page to be displayed on the screen is designated, it is possible to facilitate the document search and the like.

When the language interpretation display device supports the function of converting a file name into an object, workability in file operations such as file copying can be improved.

When transmitting this file operation to the file providing device, the file providing device can actually perform the file operation.

According to the language interpretation display system of the present invention,
The workability of the file operation in the language interpretation display device is improved, and the actual file operation by the information providing device becomes easy. At this time, as a result of the actual file operation, the screen to be changed is given to the language interpretation display device, so that it can be displayed. Therefore, the system consistency is maintained.

[Brief description of drawings]

FIG. 1 is a diagram illustrating an example of a system configuration that realizes a first embodiment.

FIG. 2 is an internal configuration diagram of an extended HTML viewer of the PDA according to the first embodiment.

FIG. 3 is a diagram showing a description example of a conventional general HTML for displaying three buttons.

FIG. 4 is a diagram showing a screen when the HTML of FIG. 3 is displayed by a conventional viewer or an extended HTML viewer according to the present embodiment.

FIG. 5 is a diagram showing a description example of extended HTML for realizing a tab function.

FIG. 6 is a diagram showing a screen when the extended HTML of FIG. 5 is displayed by the extended HTML viewer according to the present embodiment.

FIG. 7: Extended H using a combination of absolute tabs and relative tabs
It is a figure which shows the example of a description of TML.

FIG. 8 is a diagram showing a screen in which the extended HTML of FIG. 7 is displayed by a viewer of this embodiment.

FIG. 9 is a flowchart showing a processing procedure of an extended HTML viewer according to the first embodiment.

FIG. 10 is an internal block diagram of a generalized extended HTML viewer.

FIG. 11 is a flowchart showing a processing procedure of generalized extended HTML.

FIG. 12 is a diagram showing a description example of extended HTML for realizing a fixed display area in the second embodiment.

FIG. 13 is an internal configuration diagram of an extended HTML viewer according to the second embodiment.

FIG. 14 is a flowchart showing a processing procedure of an extended HTML viewer according to the second embodiment.

FIG. 15 is a diagram showing a difference in display image depending on the presence or absence of the extended function of the second embodiment, and is a diagram showing a state in which the extended HTML of FIG. 12 is displayed by a conventional viewer.

FIG. 16 is a diagram showing a difference in display image depending on the presence or absence of the extended function of the second embodiment, and is a diagram showing a state in which the extended HTML of FIG. 12 is displayed by the viewer according to the second embodiment.

FIG. 17 is a diagram showing an example of extended HTML in which a viewer describes a file name as a UI object.

FIG. 18 is a diagram showing a screen display when the extended HTML of FIG. 17 is actually displayed by the extended HTML viewer of the present embodiment.

FIG. 19 is an internal configuration diagram of an extended HTML viewer according to the third embodiment.

FIG. 20 is a flowchart showing a processing procedure of an extended HTML viewer according to the third embodiment.

FIG. 21 is a diagram showing a procedure for operating a file on an actual screen of a viewer.

FIG. 22 is a diagram showing a procedure for operating a file on an actual screen of a viewer.

FIG. 23 is a flowchart showing the cooperation between the viewer and the server according to the third embodiment.

FIG. 24 is a paper size used as a calculation standard for page allocation,
It is a figure which shows the example of the extended HTML which implement | achieves designation | designated of a reference page.

FIG. 25 is an internal block diagram of an extended HTML viewer according to the fourth embodiment.

FIG. 26 is a flowchart showing a processing procedure of an extended HTML viewer according to the fourth embodiment.

FIG. 27 is a diagram showing an example of a screen display by a viewer according to the fourth embodiment.

[Explanation of symbols]

2 PDA, 4 extended HTML server, 6 network, 8 modem, 10 mobile phone, 12 public line, 14
Proxy server, 16 infrared (IR), 18 W
WW server, 20 various service devices, 22 extended HT
ML generation unit, 24 HTTPD, 26 file system, 100, 200, 300, 400, 500 extended H
TML viewer, 102 communication control unit, 104 receiving unit,
106 language interpreting unit, 108 token reading unit, 110
Comment identification part, 112 standard statement interpretation part,
114 tab statement interpreting section, 116 tab statement identifying section, 118, 218, 318, 418,
518 Argument extraction unit, 120 Standard function processing unit, 122
Various standard processing parts, 124 tab processing parts, 126 various tab processing parts, 128 display start position updating part, 130 designated tab position holding part, 132 absolute tab position holding part, 13
4 relative tab position holding unit, 136, 236, 336 display control unit, 138 display unit, 214 extended statement interpretation unit, 216 extended statement identification unit, 224
Extended function processing unit, 226 Various extended processing unit, 250
Display related processing unit, 252 Display non-related processing unit, 254
Various control units, 314 fixed display statement interpretation unit,
316 fixed display statement identification unit, 324 fixed display processing unit, 326 various fixed display processing unit, 328 area arrangement holding unit, 330 area display information holding unit, 402
Communication control unit, 414 object setting statement interpreting unit, 416 object setting statement identifying unit, 424 object processing unit, 426 various object processing unit, 428 object setting unit, 430
Movement calculation unit, 432 file operation processing unit, 434 file operation instruction determination unit, 436 file operation instruction transmission unit, 514 page related statement interpretation unit, 516
Page-related statement identification unit, 524 page-related processing unit, 526 various page-related processing unit, 528 paper size acquisition unit, 530 page allocation unit, 532 designated page holding unit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michio Hinano KSP R & D Business Park Building Fuji Xerox Co., Ltd. 32-1 Sakado, Takatsu-ku, Kawasaki City, Kanagawa Prefecture

Claims (10)

[Claims] 1. Information to be displayed on a screen is provided in the form of a description including a comment in a screen configuration description language, and the comment is not affected on the display based only on the part excluding the comment. When the extended function is described, the part of the language description excluding the comment is interpreted and the information is displayed according to the content, and the extended function is embedded in the comment included in the language description. A language interpretation display method characterized by identifying a comment, interpreting the extended function, and performing a predetermined process according to the content. 2. The information to be displayed on the screen is provided in the form of a description including a comment in the screen configuration description language, and the comment is not influenced on the display based only on the part excluding the comment. A device in which an extended function is described, a standard description interpreting unit that interprets a description part of the language description excluding comments, and a standard function processing unit that performs various standard processes according to the interpretation content of the standard description interpreting unit. An extended description interpreting unit that identifies a comment in which an extended function is embedded among comments included in the description of the language and interprets the description, and an extended function process that performs various extended processes according to the interpretation content of the extended description interpreting unit Means, a display generation instruction output as a result of the various standard processes, and a result output of a process related to display of the various extended processes. Language interpretation display device characterized by comprising a display control means for controlling the display relative to the screen based on the display generation instruction. 3. The information to be displayed on the screen is provided in the form of a description including a comment in the screen configuration description language, and the comment is not affected on the display based only on the part excluding the comment. A device in which an extended function is described, a standard description interpreting unit that interprets a description part of the language description excluding comments, and a standard function processing unit that performs various standard processes according to the interpretation content of the standard description interpreting unit. An extended description interpreting unit that identifies a comment in which an extended function is embedded among comments included in the description of the language and interprets the description, and an extended function process that performs various extended processes according to the interpretation content of the extended description interpreting unit Means, a display generation instruction output as a result of the various standard processes, and a result output of a process related to display of the various extended processes. Display control means for controlling display on the screen based on the display generation instruction, and the extended function is an area provided in the display area, and the display content in the area is outside the area. A fixed display area setting function for providing a fixed display area that is not affected by the change even if the display content is changed, wherein the extended description interpreting means reads the description regarding the fixed display area setting function, Interpreting the description, the extended function processing means acquires the arrangement information in the display area of the fixed display area from the result of the interpretation by the extended description interpreting means, and area arrangement holding means for holding the arrangement information, and the extension In-area display information storage that acquires information to be displayed in the fixed display area from the result of the interpretation by the description interpreting means, and holds this information as in-area display information. It includes a means, and the extension to the display control unit from the processing unit, the display as a generation instruction, language interpretation display device, characterized in that the arrangement information and the region within the display information is given. 4. The information to be displayed on the screen is provided in the form of a description including a comment in a screen configuration description language, and the comment is not affected on the display based only on the part excluding the comment. A device in which an extended function is described, a standard description interpreting unit that interprets a description part of the language description excluding comments, and a standard function processing unit that performs various standard processes according to the interpretation content of the standard description interpreting unit. An extended description interpreting unit that identifies a comment in which an extended function is embedded among comments included in the description of the language and interprets the description, and an extended function process that performs various extended processes according to the interpretation content of the extended description interpreting unit Means, a display generation instruction output as a result of the various standard processes, and a result output of a process related to display of the various extended processes. Display control means for controlling display on a screen based on a display generation instruction, and the extended function includes a tab function for setting a display start position for each piece of information to be displayed on the screen, The description interpreting means interprets the description concerning the tab function, when the description is read, and the extended function processing means acquires tab position designation information from a result of the interpretation by the extended description interpreting means and holds it. And a display start position updating means for selecting and updating the display start position of the information to be displayed next time from the specified tab position each time the tab function is executed. A language interpretation display characterized in that the information to be displayed and its display start position are given from the extended function processing means to the display control means as the display generation instruction. Location. 5. The language interpretation display device according to claim 4, wherein the designated tab position holding means holds a designated tab position for an absolute tab whose positioning reference is a predetermined position for the entire screen area. The display start position updating unit includes a holding unit and a relative tab position holding unit that holds a specified tab position related to a relative tab whose positioning is based on a predetermined position related to a partial area of the screen. A language interpretation display device, characterized in that the display start position is updated by changing the positioning reference depending on whether it is related to the relative tab or the relative tab. 6. The information to be displayed on the screen is provided in the form of a description including a comment in the screen configuration description language, and the comment is not affected on the display based only on the part excluding the comment. A device in which an extended function is described, a standard description interpreting unit that interprets a description part of the language description excluding comments, and a standard function processing unit that performs various standard processes according to the interpretation content of the standard description interpreting unit. An extended description interpreting unit that identifies a comment in which an extended function is embedded among comments included in the description of the language and interprets the description, and an extended function process that performs various extended processes according to the interpretation content of the extended description interpreting unit Means, a display generation instruction output as a result of the various standard processes, and a result output of a process related to display of the various extended processes. Display control means for controlling display on a screen based on a display generation instruction, and the extension function includes a page allocation function for page allocation of information to be displayed according to a designated paper size, The description interpreting unit interprets the description concerning the page allocation function, and the extended function processing unit obtains the specified paper size from the interpretation result by the extended description interpreting unit. Means and a page allocating means for associating the information to be displayed with each page by dividing the information to be displayed in order from the top by a designated paper size, and the extended function processing From the means, the display control means is given, as the display generation instruction, information relating to the correspondence between the information to be displayed and each page. Language interpretation display device according to. 7. The language interpretation display device according to claim 6, wherein the extended function processing unit actually displays on the screen among a plurality of pages generated as a result of page allocation based on the interpretation result by the extended description interpretation unit. Get the specification of the page that should be,
The extended function processing means includes a designated page holding means for holding the information, and the extended function processing means provides the display generation instruction with information included in the designated page of the information to be displayed. Characteristic language interpretation display device. 8. The information to be displayed on a screen is provided in the form of a description including a comment in a screen configuration description language, and the comment is not affected on the display based only on the part excluding the comment. A device in which an extended function is described, a standard description interpreting unit that interprets a description part of the language description excluding comments, and a standard function processing unit that performs various standard processes according to the interpretation content of the standard description interpreting unit. An extended description interpreting unit that identifies a comment in which an extended function is embedded among comments included in the description of the language and interprets the description, and an extended function process that performs various extended processes according to the interpretation content of the extended description interpreting unit Means, a display generation instruction output as a result of the various standard processes, and a result output of a process related to display of the various extended processes. Display control means for controlling display on a screen based on a display generation instruction, and the extended function is an object for instructing the device to hold as a specified object among the names of files referred to by the device. A language interpretation display device including a setting function, wherein the extended function processing unit includes an object setting unit that defines a specified file name as an object and holds the file name as an object thereafter. 9. The language interpretation display device according to claim 8, wherein the device receives a file to be referred from a file providing device, and file operation is performed on the file name held as the object. When the instruction is given, the language interpretation display device is characterized by including a file operation instruction discriminating means for discriminating the instruction content, and a file operation instruction transmitting means for transmitting the discriminated instruction content to the file providing device. . 10. A language interpretation display device and a display for the device in the form of a description including a comment in a language for information to be displayed on a screen, and displaying the comment based only on a part excluding the comment. A system including an information providing device that describes and provides an extended function so as not to affect, wherein the language interpretation display device is a name of a file referred to by the device among comments included in the language description. An extended description interpreting means for interpreting a description instructing the device to hold the object as an object, and an extended function processing means for defining the specified file name as the object according to the description and holding the file name as an object thereafter, When a file operation is instructed for the file name held as an object, this file is used to determine the instruction content. File operation instruction transmitting means for transmitting the discriminated instruction content to the information providing device, wherein the information providing device is a file referred to by the language interpretation display device according to the file operating instruction. A file operation means for actually performing a file operation, and a screen configuration for updating the description in the language to reflect the change in the screen display content generated as a result of the file operation and providing this to the language interpretation display device. A language interpretation display system comprising: an information providing means.