JPH08339369A - Method and device for document display - Google Patents

Abstract

PURPOSE: To provide a method and device for document display which perform the reference work of a structured document and the reference work related to the logical structure and enable a user to execute these two reference works independently of each other. CONSTITUTION: In accordance with the instruction inputted from an input device 15 through an input/output interface 14 by a user 2, a display object determination part 11 instructs a logical structure display part 12 and a contents display part 13 to display the logical structure or contents on an output device 16 through the input/output interface 14, thus presenting them to the user 2. In accordance with the mode, the display object determination part 11 displays or conceals only contents corresponding to an indicated logical object, contents corresponding to a partial tree having the logical object as the top, or contents corresponding to logical objects of the same attribute and changes the display form of them or displays a corresponding logical object from a part of indicated contents.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document display device and a document display method for displaying the logical structure and contents of a structured document having a logical structure and contents.
In this specification, the logical structure is defined as “paragraph or diagram,
It represents the logical relationship between document components such as chapters and sections. " This logical structure can be expressed by a graph structure in which each component is a node and a logical relationship is an arc.

[0002]

2. Description of the Related Art A word processor or the like is widely used to create and edit electronic documents (structured documents) that retain not only the contents of a document but also the logical structure of the document on a computer. There are times when it is desired to perform the reference work of the content and the reference work of the logical structure in parallel for such a structured document. In order to support this work, document display devices capable of simultaneously displaying both the document logical structure and the document contents have been provided.

For example, in the document editing apparatus described in Japanese Patent Laid-Open No. 5-143588, the logical structure is expressed by the inclusion relation of the frames displayed corresponding to the individual logical constituent elements in the input structured document. At the same time, the contents corresponding to the frame are displayed inside the frame. By using this device, a document referrer (hereinafter, simply referred to as a referrer) can simultaneously refer to a logical structure and contents corresponding to individual logical constituent elements. However, on the contrary, since the document is displayed in a form in which the content is embedded in the logical structure, it is difficult to refer to the content and the logical structure independently.

Further, in the scroll processing system in the document editing apparatus described in Japanese Patent Laid-Open No. 4-291449, a logical structure of an input document is generated, a logical structure unit in the logical structure, and a logical structure unit. Generates a correspondence table with a list of character strings such as chapters and paragraph numbers that represent the start position of, and shows the scroll menu screen consisting of the list of character strings to the document editor. When the document editor selects a character string on the screen, the logical structure unit corresponding to the selected character string is identified based on the correspondence table, and the cursor in the content display screen starts the logical string with the character string as the start position. You can move to the display position of the structural unit and display the contents of the selected logical structural unit. As a result, the reference person can easily identify the start position of the content corresponding to the focused logical structure unit. However, this technique newly generates and displays a logical structure that is completely unrelated to the logical structure in the document, even when the structured document already provided with both the logical structure and the content is targeted for display. Therefore, the logical structure shown to the reference person may be different from the logical structure in the document. Even in this case, since the referrer determines that the displayed logical structure is included in the structured document, there is a risk of erroneously recognizing the logical structure in the referenced structured document. It was

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and when referring to a structured document, not only the reference work relating to the content of the document but also the document is provided. It is an object of the present invention to provide a document display device and a document display method which enable a reference work relating to a logical structure of a document to be performed, and which enables a reference person to execute these two types of reference work independently of each other. .

[0006]

According to a first aspect of the present invention, in a document display device for displaying a structured document having a logical structure and contents, a document selecting means for selecting the structured document, and the structured Display means for displaying the document, logical structure display means for displaying the logical structure of the structured document selected by the document selecting means on the display means, and contents of the structured document selected by the document selecting means It is characterized by further comprising content display means for displaying as an area different from the area displayed by the logical structure display means of the display means.

According to a second aspect of the invention, in a document display device for displaying a structured document having a logical structure and contents,
It is represented by a document selection means for selecting the structured document, a logical structure display means for displaying the logical structure of the structured document selected by the document selection means, and a graph structure displayed by the logical structure display means. A logical structure selecting means for selecting an object that is a node in the logical structure, and a content displaying means for displaying the content corresponding to the object of the logical structure selected by the logical structure selecting means. Is.

According to a third aspect of the invention, in a document display device for displaying a structured document having a logical structure and contents,
Document selection means for selecting the structured document, content display means for displaying the content of the structured document selected by the document selection means, and content for selecting a part of the content displayed by the content display means The present invention is characterized by comprising selection means and logical structure display means for displaying a logical structure corresponding to the content selected by the content selection means.

According to a fourth aspect of the invention, in a document display device for displaying a structured document having a logical structure and contents,
It is represented by a document selection means for selecting the structured document, a logical structure display means for displaying the logical structure of the structured document selected by the document selection means, and a graph structure displayed by the logical structure display means. A logical structure selecting means for selecting an object which is a node in the logical structure, and a content displaying means for displaying the contents corresponding to objects other than the object selected by the logical structure selecting means. Is.

According to a fifth aspect of the present invention, in a document display device for displaying a structured document having a logical structure and contents,
It is represented by a document selection means for selecting the structured document, a logical structure display means for displaying the logical structure of the structured document selected by the document selection means, and a graph structure displayed by the logical structure display means. Logical structure selecting means for selecting an object that is a node in a logical structure, a searching means for searching an object in a structured document having the same attribute as the object selected by the logical structure selecting means, and the searching means. The content display means for displaying the content corresponding to the object searched by is provided.

According to a sixth aspect of the invention, in a document display device for displaying a structured document having a logical structure and contents,
It is represented by a document selection means for selecting the structured document, a logical structure display means for displaying the logical structure of the structured document selected by the document selection means, and a graph structure displayed by the logical structure display means. Logical structure selecting means for selecting an object which is a node in the logical structure, and retrieval for searching an object in a structured document under a tree structure expressing the logical structure from the object selected by the logical structure selecting means It is characterized by comprising means and content display means for displaying the content corresponding to the object retrieved by the retrieval means.

According to a seventh aspect of the present invention, in the document display apparatus according to the fifth or sixth aspect, the content display means displays the content corresponding to the object retrieved by the retrieval means. It is characterized in that it is displayed differently from the display form of other contents.

According to the invention described in claim 8, in a document display device for displaying a structured document having a logical structure and contents,
It is represented by a document selection means for selecting the structured document, a logical structure display means for displaying the logical structure of the structured document selected by the document selection means, and a graph structure displayed by the logical structure display means. A logical structure selecting means for selecting an object which is a node in the logical structure, and a display form instructing means for instructing a form when displaying the contents corresponding to the object of the logical structure selected by the logical structure selecting means, It is characterized by comprising content display means for displaying the content corresponding to the object of the logical structure selected by the logical structure selection means based on the form instructed by the display form instructing means.

According to a ninth aspect of the invention, in a document display method for displaying a structured document having a logical structure and contents,
Select the structured document, display the logical structure of the selected structured document, select an object that is a node in the logical structure represented by the displayed graph structure, and select the object of the selected logical structure. It is characterized in that the contents corresponding to are displayed.

According to a tenth aspect of the present invention, in a document display method for displaying a structured document having a logical structure and contents, the structured document is selected, and the contents of the selected structured document are displayed and displayed. It is characterized in that a part of the selected contents is selected and the logical structure corresponding to the selected contents is displayed.

[0016]

According to the invention described in claim 1, the logical structure of the structured document selected by the document selecting means is displayed on the display means by the logical structure display means, and the content is displayed on the display means by the content display means. At this time, the area in which the logical structure is displayed and the area in which the content is displayed are displayed on the display means as separate areas. As a result, when the structured document is referenced, the display of the content of the document and the display of the logical structure of the document are performed independently, so that the reference work can be performed independently. Further, since these two display areas can be provided in the same display means (for example, CRT, etc.), it is possible to refer to both.

According to the inventions of claims 2 and 9, when an object of the displayed structured document is selected, the contents corresponding to the selected object of the logical structure are displayed. As a result, the referrer can refer to the displayed logical structure and shift from the logical structure to the content reference. For example, by selecting an object of interest in the displayed structured document, the referrer can specify and refer to the content corresponding to the selected object.

According to the invention described in claims 3 and 10, when a part of the contents of the displayed structured document is selected, the logical structure corresponding to the selected contents is displayed. Thereby, the referrer can refer to the content of the displayed document and shift from the content to the reference of the logical structure.

According to the invention described in claim 4, when an object of the displayed structured document is selected, the contents corresponding to the object other than the selected object of the logical structure are displayed. As a result, the referrer can hide the contents of the logical structural unit in the selected structured document and refer to the contents.

According to the invention of claim 5, when an object of the displayed structured document is selected, an object in the structured document having the same attribute as the selected object of the logical structure is searched, Display the content corresponding to the retrieved object. This allows the referrer to
Of the contents of the selected structured document, only the contents of the same kind can be referred to logically.

According to the invention described in claim 6, when an object of the displayed structured document is selected, in the structured document which is lower than the tree structure representing the logical structure than the selected object of the logical structure. The object corresponding to the searched object is displayed and the content corresponding to the searched object is displayed. As a result, the referrer can refer only to the content corresponding to the subtree having the apex of the logical object of interest in the selected structured document.

In the invention described in claims 5 and 6, when the content corresponding to the searched object is displayed as in the invention described in claim 7, it is displayed differently from the display form of other content. can do. As a result, the referrer can refer to the content of a certain type of the selected structured document or the content corresponding to the subtree having the logical object as a vertex, separately from other content. it can.

According to the invention described in claim 8, when an object of the displayed structured document is selected, the content corresponding to the selected object of the logical structure is displayed based on the instructed form. . This allows the referrer to refer to the content corresponding to the focused logical object in the selected structured document separately from other content.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG.
It is a block diagram regarding the Example of. In the figure, 1 is a document display device, 2 is a reference person, 11 is a display target determining unit, 12 is a logical structure display unit, 13 is a content display unit, 14 is an input / output interface, 15 is an input device, and 16 is an output device. is there. The document display device 1 includes a display target determination unit 11 and a logical structure display unit 1.
2, a content display unit 13, an input / output interface 14, an input device 15, and an output device 16. These components are realized by using resources and peripheral devices on a computer such as a personal computer and a workstation.

The display target determining unit 11 determines the logical structure and content of the document to be displayed according to the instruction from the referencer 2 input through the input / output interface 14, and the logical structure display unit 12 and the content display unit. A display output instruction is issued to 13. The display target determining unit 11 includes a storage area of a computer such as a memory and a magnetic disk, and a computer program that describes various procedures executed by the display target determining unit 11.

The logical structure display section 12 is a display target determining section 1
The logical structure data output by 1 is converted into image data that can be directly received by the output device 16 and is output.
The logical object output by the display target determining unit 11 is converted into coordinates indicating the starting point of the logical structure data to be displayed by the output device 15, and the coordinates are output. The logical structure display unit 12 is realized by a computer program that performs these processes.

The operation of the logical structure display section 12 can be easily realized by utilizing the technology provided in the related art for visualizing and displaying the tree structure. As such a conventional technique, for example, "X Toolkit
Programming OPEN LOOK version ", D.I. A. Young, J. A. View, translated by Kyosuke Kawate, Toppan Co., Ltd., 1st edition 1992, pp. 547-577, especially the function show-tre described on page 576.
The algorithm adopted in e.

The content display unit 13 converts the content data output by the display target determining unit 11 into image data that can be directly received by the output device 16 and outputs the image data, and a part of the content is displayed on the output device 16. It is converted into coordinates indicating the starting point of the contents data and output. The content display unit 13 is realized by a computer program that performs these processes.

The input device 15 issues an instruction from the referrer 2 to specify the structured document to be referred to by the input / output interface 1.
It can be easily realized by using, for example, a mouse, a keyboard and a computer program.

The output device 16 is the input / output interface 1
The display image of the logical structure and contents given from 4 is shown to the reference person 2 as an input, and can be easily realized by using, for example, a display and a computer program for display control.

The input / output interface 14 constructs a support environment for the referrer 2 to specify the structured document on the output device 16, and outputs the structured document specifying instruction from the referrer 2 to the display target determining unit 11. To do. Further, the logical structure obtained from the logical structure display unit 12 and the content obtained from the content display unit 13 are output to the output device 16 based on the corresponding display form instructions. At that time, an environment is also provided to assist the referrer 2 to easily refer to the logical structure and contents. Then, the display target determining unit 1 receives various instructions of the referrer 2 issued to the display target determining unit 11 via the input device 15.
Output to 1. These functions are described, for example, in the "X Toolkit programming OPENLOO".
It can be realized by using the programs and algorithms described in "K version".

The display target determining unit 11 will be further described. The display target determining unit 11 internally holds the following information. -Document-Reference mode-Display mode-Display content Here, the internal information "document" holds the input structured document to be displayed.

The internal information “reference mode” is information for determining the procedure to be activated with the input logical object as an argument, and the value is set by the referrer 2 via the input device 15. . The settable value is one of the following. -Node display mode-Subtree display mode-Outline mode-Full display mode In "node display mode", only the contents corresponding to the logical object given as an argument are output. Also,
An instruction to change the display form of the content corresponding to the logical object is output. In the "subtree display mode", in the document logical structure in the internal information "document", only the contents corresponding to the subtree having the logical object given as an argument as the vertex are output. Further, a display for changing the display form of the content corresponding to the logical object is output. In the "outline mode", the content obtained as a result of removing the content corresponding to the subtree whose vertex is the logical object given as an argument in the document logical structure in the internal information "document" from the display content of the content display unit 13. Is output. In addition, an instruction to change the display form of the content corresponding to the subtree is output. In the “all display mode”, all logical structures and all contents of the internal information “document” are output.

The internal information “display mode” is information for determining the change mode of the contents displayed as a result of the processing triggered by the input of the logical object, and like the reference mode, the reference device 2 inputs the input device 15 to the input device 15. The value is set via. The settable value is one of the following.・ Content display ・ Form display

In the internal information "display content", the displayed document content and display form instruction are held. In this embodiment, underlining is given as an example of a display form different from the others. Therefore, the following two types of information are held as display form instructions. -Presence or absence of underline of each character string-Display start position Of course, when other display forms are possible, those display form instructions are held.

For this "display content", the content and content display form output as a result of the processing started with the "node filtering" event are referred to the content and content display form displayed immediately before the processing. , Used when determined. The content is displayed in, for example, a content browser window. Further, the "node filtering" event is generated by an instruction of a display content change process performed by a selection operation on a logical object.

FIG. 2 is a flow chart showing an example of the processing flow of the display target determining unit in the first embodiment of the present invention, FIG.
FIG. 7 is an explanatory diagram of a corresponding relationship between an event that is also supposed, information that is input, and processing that is executed next. The display target determining unit 11 first secures an internal variable storage area for storing internal information in S21, and then S22 to S22.
At 26, the procedure to be performed next is determined based on the input information and the type of event. As shown in FIG. 3, the events assumed in this embodiment include “document reading”, “node filtering”, “content selection”,
"Reference mode switching", "Display mode switching",
There are six "ends". Further, the information input to the display target determination unit 11 corresponding to each event and the processing to be executed next are shown in association with each other. Note that FIG.
In, the next executed process shows the corresponding step in FIG.

When it is determined in S22 that the event is "document read", the display target determining unit 11
The structured document is input to and the process of S27 is executed next. In S27, the input structured document data is separated into logical structure data and content data and stored in the internal information "document". Then, the logical structure data and the content data are output to the logical structure display unit 12 and the content display unit 13, respectively,
The sleep state is entered in S32.

When it is determined in S23 that the event is "node filtering", the logical object identifier is input to the display target determining section 11, and S28
The process of is executed next. In S28, the procedure corresponding to the combination of the reference mode and the display mode at that time is executed to display various logical structures. Then, in S32, the document display device 1 enters the hibernation state. The procedure corresponding to the set of the reference mode and the display mode will be described later.

When it is determined in S24 that the event is "selection of contents", the display target determining section 11
The beginning position of the contents is input to and the process of S29 is executed next. In S29, the corresponding logical structure is displayed based on the head position of the input content. And S32
At, enter the dormant state. This process will also be described later.

When it is determined in S25 that the event is "reference mode switching", the value of the reference mode is input to the display object determining section 11, and the process of S30 is executed next. In S30, the input new reference mode value is stored as the value of the internal information “reference mode”.
If the value of the new reference mode is the full display mode, the logical structure data and content data in the internal information “document” are output. After the processing is completed, the hibernation state is entered in S32.

When it is determined in S26 that the event is "display mode switching", the value of the display mode is input to the display target determining section 11, and the process of S31 is executed next. In S31, the input new display mode value is stored as the value of the internal information "display mode".
After the processing is completed, the hibernation state is entered in S32.

When the above-described processing of S27 to S31 is completed, S
When a new event is input after entering the dormant state in 32, the process returns from S33 to S22, and the process corresponding to the new event is executed. If the event is other than the above-mentioned five events, that is, "end", the internal variable storage area is released in S34 and the process ends.

It should be noted that, once the display target determining section 11 is started by the "start" event, it is assumed that the value of the internal information is maintained in the sleep state until it is ended by the "end" event. This function is realized by, for example, the display target determining unit 11 as a class of C ++ language,
It can be provided by implementing the internal information as a member variable of the class. Regarding C ++ language, for example,
"C ++ primer", S. B. Written by Lippmann, translated by Fuji Xerox Information System Co., Ltd., Toppan Co., Ltd., 1
It is described in 993 and the like.

Further, the display target determining unit 11 executes the procedure corresponding to the occurrence of the above-mentioned event. This function is also realized by, for example, the display target determining unit 11 as a class of C ++ language, and the event This can be provided by describing the procedure that is activated in response to the occurrence as a member function of the class so that the corresponding member function is activated when the event occurs.

FIG. 4 is an explanatory diagram of a correspondence relationship between a set of a reference mode and a display mode and a procedure. As described above, the reference mode has four modes of “node display mode”, “subtree display mode”, “outline mode”, and “all display mode”. Of these, for the "all display mode", the entire logical structure and all contents of the internal information "document" are output regardless of the display mode. For other modes, various processes are performed in combination with the display mode “content display” or “form display”.

When the reference mode is "subtree display mode" and the display mode is "content display", the document contents corresponding to all the logical objects in the subtree having the input logical object as the vertex are internally stored. A process of specifying and outputting the document contents in the information "document" is performed.

When the reference mode is "partial tree display mode" and the display mode is "morphological display", the document contents corresponding to all the logical objects in the partial tree having the input logical object as a vertex are internally stored. It is specified from the document content in the information “display content”, and underlined, for example, is added to change the display mode of the specified content, and the content is output together with the head position of the underlined content. Also, the output result is stored in the internal information “display content”.

When the reference mode is "node display mode" and the display mode is "content display", the document content corresponding to the input logical object is specified from the document content in the internal information "document" and output. Internal information "display content"
To be stored.

When the reference mode is "node display mode" and the display mode is "form display", the document content corresponding to the input logical object is specified from the document content in the internal information "display content". In order to change the display form of the specified content, for example, an underline is added, and the underlined content is output together with the start position.
Also, the output result is stored in the internal information “display content”.

When the reference mode is the "outline mode" and the display mode is the "content display", the document contents corresponding to all the logical objects in the subtree having the input logical object as the vertex are stored in the internal information " The content of the document obtained as a result is excluded from the value of “display content” and stored in the internal information “display content”.

When the reference mode is the "outline mode" and the display mode is the "form display", the portion whose form should be changed is excluded from the display content, and therefore the form cannot be changed based on the instruction. Therefore, an error message is displayed via the output device 16, and the process ends.

The operation of the document display device 1 described above will be described in detail below with reference to a specific example. The following explanation
It is assumed that all the constituent elements shown in FIG. 1 are prepared. Through the following description, the structured document that the referrer 2 refers to is “document A”. Referrer 2
Assume that the following work is performed, and the operation of the document display device will be described for each work. -Display of documents-Change of display contents accompanying logical object selection operation-Change of display logical structure accompanying content selection operation

First, the display of a document will be described. Figure 5
3 is a flowchart illustrating an example of a document display operation in the first embodiment of the document display device of the present invention. In S41, activation of the document display device 1 is instructed by inputting the structured document data to be displayed. Then, in S42, the display target determining unit 11 operates to output the logical structure and contents. Then, in S43, the logical structure display unit 12 and the content display unit 13 operate, and the converted logical structure data and content data are shown to the referrer 2 through the output device 16. This is the end of the operation related to document display.

Hereinafter, each step will be described based on a concrete example. FIG. 6 is an explanatory diagram of an example of the structured document holder window. In the figure, 51 is a structured document display area,
Reference numeral 52 is a document display instruction button. First, S41 of FIG.
In, the referrer 2 selects, for example, a menu item or inputs a command, so that the structured document holder window (hereinafter referred to as a holder window) as shown in FIG. Is displayed. The holder window is for allowing the referrer 2 to specify the structured document to be displayed. In the holder window shown in FIG. 6, a structured document display area 51,
A document display instruction button 52 is displayed above it.
In the structured document display area 51, a list of structured documents is displayed. Here, 2 are called “document A” and “document B”.
Two documents are displayed. In this embodiment, these documents are stored in advance in the file system of the computer in which the document display device is realized,
It shall be displayed on the holder window by an appropriate computer program prepared in the input / output interface 14.

The referrer 2 specifies the reference target document via the holder window as shown in FIG. here,
In order to refer to “Document A”, select the line corresponding to “Document A” and press the document display instruction button 3 at the top of the window.
Press 2 (for example, click with a mouse). Then, the input / output interface 14 inputs the document data of the structured document (here, “document A”) corresponding to the line selected in the structured document display area 31 to the display target determining unit 11, and the display device 16 to start. Along with this, the processing state moves to S42 of FIG.

FIG. 7 is an explanatory diagram of the logical structure and the correspondence relationship between the logical objects and the contents in an example of the document. FIG. 7A shows the logical structure of the document “Document A” designated as the reference target. In addition, in FIG.
Similarly, the correspondence between the logical object and the contents of the document “Document A” is shown. In FIG. 7A, what is described in the ellipse that means each logical object is the identifier of the logical object, and the identifier of the logical object at the end is the column of the logical object identifier in FIG. 7B. It is the same as the logical object identifier described in. Note that, in FIG. 7A, the logical structure is shown by an abstract expression. This logical structure is represented by a tree structure, and a number of methods for representing the tree structure on a computer have heretofore been shown. For example, if a node of a tree is realized as a variable of abstract data type that holds not only the data corresponding to the node but also pointers to its parent, brother, younger brother, and firstborn, this set of variables represents the tree structure. Will be done.

In the example shown in FIG. 7A, this document "Document A" has two chapters (SECTION1, SECTIO).
N2), SECTION 1 is the title (T
ILE1) and two paragraphs (PARAGRAPH1, P
ARAGRAPH 2). Also, SE
CTION2 is composed of a title (TITLE2) and one paragraph (PARAGRAPH3). FIG.
As shown in (B), the content of TITLE1 is "Introduction", and the content of PARAGRAPH1 is "In this document ...". Hereafter, similarly, PARA
The contents of GRAPH2, TITLE2, and PARAGRAPH3 are also associated with each other.

The document data of the selected structured document "Document A" is input to the display target determining section 11 together with the document read event. Then, the display target determining unit 11 executes the above-described processing shown in FIG. In this case, since the document read event is input, the processes of S22 to S27 of FIG. 2 are activated, the logical structure data of the document "Document A" is displayed on the logical structure display unit 12, and the content data is displayed. It is output to the unit 13. Then, the display target determination unit 11
Enters hibernation. As a result, the operation in S42 of FIG. 5 ends, and the entire process proceeds to S43. Here, the logical structure data and the content data output from the display target determining unit 11 are all the logical structure data and all the content data of the document “Document A”.

Subsequently, in S43 of FIG. 5, the logical structure display unit 12 and the content display unit 13 respectively display the contents determination unit 1
1, receives the logical structure data and the content data, converts them into image data that can be displayed by the output device 16, and passes them to the input / output interface 14. I / O interface 1
4 generates an environment for supporting individual data reference based on this image data, and the reference person 2 through the output device 16
To be displayed.

FIG. 8 is an explanatory diagram of a display example of the logical structure browser window, and FIG. 9 is an explanatory diagram of a display example of the content browser window. As described above, the document "Document A"
The logical structure data and content data of are displayed on the output device 16. At this time, the logical structure data is, for example, as shown in FIG.
It is displayed in a logical structure browser window (hereinafter referred to as a logical structure browser) as shown in. Further, the content data is displayed in a content browser window (hereinafter referred to as a content browser) as shown in FIG. 9, for example.

The logical structure browser shown in FIG. 8, and
The content browser shown in FIG. 9 displays the logical structure image and the content image in which the size of the display area cannot be specified in advance in the limited area due to the restriction of the output device 16. For this reason, scroll bars are provided at the right end and the lower end of the display area for scrolling the display contents vertically and horizontally. The referrer 2 can scroll the logical structure image and the content image through the scroll bar, and can proceed with the reference focusing only on the content or the logical structure of the sentence. These windows are displayed in the same way as windows in a normal window system, so you can stack them,
Display according to the operation of the referrer 2, such as displaying only one of them, is performed. Further, in this embodiment, the logical structure browser and the content browser are realized as separate windows, but it is also possible to arrange both in a horizontal or vertical direction and provide them in a single window, and the input / output interface 14 This can be easily realized by appropriately changing the window generation program of.

As a result of the above series of processing, the referrer 2 was able to display the logical structure and contents of the document “Document A” as intended.

Next, the process of changing the display contents associated with the logical object selecting operation will be described. For example, various display contents can be changed by performing a selection operation on the logical object displayed in the logical structure browser. In order to perform this operation, the internal information “reference mode” and “display mode” of the display target determining unit 11 need to be set.

FIG. 10 is an explanatory diagram of a display example of the mode setting window. The internal information “reference mode” and “display mode” of the display target determining unit 11 are set, for example, as shown in FIG.
This can be done by the mode setting window shown in 0. In the mode setting window shown in FIG. 10, a mode selection button regarding the reference mode and the display mode, and an all display button are arranged.

The mode selection button is composed of a button group whose title is a character string corresponding to the possible values of the reference mode and the display mode, and the internal information "reference mode" held in the display target determining section 11. Also, the button corresponding to the value of "display mode" is displayed in a selected state. For example, the mode setting window shown in FIG. 10 shows that the partial tree display mode is set as the reference mode and the content display mode is set as the display mode. In FIG. 10, for convenience of illustration, the state where the button is selected is shown by hatching. However, when the reference mode is the full display mode, neither button is selected.

The referrer 2 presses a button that is not in the selected state,
For example, when the mouse is clicked, a “reference mode switching” event or a “display mode switching” event is input to the display target determining unit 11. Then, the process of S30 or S31 shown in FIG. 2 described above is performed, and the value of the corresponding internal information in the display target determining unit 11 is rewritten.

On the other hand, when the all display button is pressed, the "reference mode switching" event is input to the display target determining section 11 together with the value of the all display mode. Display target determination unit 1
In 1, the value of the internal information “reference mode” is rewritten, the logical structure data and the content data in the internal information “document” are output, and the logical structure display unit 12, the content display unit 13, and the input / output interface 14 are referred to. Person 2 is shown.

FIG. 11 is a flow chart for explaining an example of the operation when a logical object is selected in the logical structure browser in the first embodiment of the present invention. In the following description, it is assumed that the reference mode and the expression mode are properly set through the mode setting window as shown in FIG.

First, in S61, the referrer 2 selects a logical object on the logical structure browser. Then S6
In step 2, the input / output interface 14 specifies the logical object to be selected, and the “node filtering” event is input to the display target determining unit 11 together with the specified logical object.

Next, in S63, the display object determining unit 11 that has been suspended is activated, and the processing shown in FIG. 2 is executed by the display object determining unit. Here, since the “node filtering” event is input to the display target determining unit 11, in S28 of FIG. 2, the procedure corresponding to the combination of the reference mode and the display mode is executed. And S
In 64, when the display mode is content display, the content display unit 13 generates content image data based on the content data from the display target determination unit. On the other hand, when the display mode is the form display, the content display unit 13 should display the content image data and the content image data in a window based on the content data and the display form data from the display target determining unit 11. Generate a set of coordinates that specify a region. Finally, in S65, the input / output interface 1
4 updates the display of the content browser and ends the series of processes.

The above steps will be described below based on a specific environment and operation target. First, in the situation where the reference mode is the subtree display mode and the entire content of the document is displayed in the content browser, the referrer 2 wants to refer only to the content described in Chapter 2 of the document “Document A”. Imagine what you think. Accordingly, the referrer 2, for example, sets the display mode to the content display in advance in the mode setting window shown in FIG. 10, and in S61, corresponds to, for example, Chapter 2 of the logical structure browser shown in FIG. Logical object (node "SECTION
2 ”).

Subsequently, in S62, the input / output interface 14 is used to select the logical object name "SEC".
"TION2" is specified and sent to the display target determining unit 11 together with the "node filtering" event.

In S63, the display target determining unit 11 performs the process of S28 in FIG. 2. Since the reference mode is the subtree display mode and the display mode is the content display here, this corresponds to this combination in FIG. The procedure A is executed with the logical object "SECTION2" as an argument. As a result, the logical object "SECTIO" is used as the content data.
The document contents corresponding to all the logical objects included in the subtree having N2 ″ as the apex can be obtained. At this time, the content display form data is not output.
Then, the content display unit 13 converts the content data into content image data and transfers the content image data to the input / output interface 14, and the content browser is updated in S65.

FIG. 12 is an explanatory diagram of a display example when the reference mode is the subtree display mode and the display mode is the content display. Thus, as shown in FIG.
Only the contents of Chapter 2 of the document "Document A" are displayed on the contents browser.

As described above, the referrer 2 can refer to only the contents corresponding to the subtree having the logical object as the vertex by merely designating the logical object of interest. Even if this logical object selecting operation is repeatedly performed, only the corresponding document content is displayed in the content browser.

On the other hand, it may be considered that the referrer 2 wants to change the display form of only the document content corresponding to the subtree of interest in the document content displayed in the content browser at that time. To be In this case, referrer 2
Changes the display mode to the morphological display through the mode setting window as shown in FIG. 10 in advance, and then selects the logical object, for example, the logical object "SECTION2", for which the content of the subtree is to be displayed on the logical structure browser. Yes (S61). Then, as in the case where the display mode is content display, in S62, the logical object name “SECTI” is input via the input / output interface 14.
"ON2" is sent to the display target determining unit 11 together with the "node filtering" event.

In S63, the display target determining unit 11 causes the display target determining unit 11 to execute S in FIG.
28. Here, since the reference mode is the subtree display mode and the display mode is the form display, the procedure B corresponding to this combination in FIG. 4 is executed with the logical object "SECTION2" as an argument. . As a result, all the contents held by the document A are obtained as the contents data. Also, an instruction to underline only the contents corresponding to all the logical objects included in the subtree having the logical object "SECTION2" as the vertex as the content display form data, that is, all the contents included in Chapter 2, and The designation of the content start position corresponding to "SECTION 2" is obtained.

FIG. 13 is an explanatory diagram of an example of data output by the display target determining unit when the reference mode is the subtree display mode and the display mode is the morphological display. In FIG.
The area sandwiched between the symbols “<Uline>” and “</ Uline>” is the area to be underlined, and the position to which the symbol “<From>” is added is displayed on the output device 16. This is the start position of the content image data at the time.

Then, in S64, the content image data is generated, and the set of coordinates for determining the area to be displayed in the window in the generated image data is also generated. FIG. 14 is an explanatory diagram of an example of content image data and coordinates output by the content display unit when the reference mode is the subtree display mode and the display mode is the morphological display. In FIG. 14, the hatched portions are
It is a part of the content image data. In the content image data, the symbol “<Uli of the outputs shown in FIG. 13 is included.
An underline is generated in a portion sandwiched between “ne>” and “</ Uline>”.

The upper left corner of the content image data is the origin of coordinates (0, 0), and the number of lines and the number of characters are coordinate values.
The coordinates are (row direction, column direction). At this time, FIG.
The coordinates of the position to which the symbol “<From>” is added are (3, 0). With content image data,
This coordinate is output.

Finally, in S65, the display of the content browser is updated by the input / output interface 14, and the referrer 2
Shown in. FIG. 15 is an explanatory diagram of a display example when the reference mode is the partial tree display mode and the display mode is the morphological display. In this way, from the content image data shown in FIG. 14, the content image after the coordinates indicating the start position is displayed on the content browser.

As described above, the referrer 2 simply designates the logical object that he or she is paying attention to, and underlines the content corresponding to the subtree having the logical object as a vertex to display the content browser. It can be displayed at the top. Even if this logical object selection is repeated, the corresponding document content is displayed with an underline at the top of the content browser each time. However,
In this case, the content data to be displayed in the content browser is not only the content corresponding to the subtree having the specified logical object as the vertex, but all content data. Since only a part of the content data can be displayed on the content browser, the display range is simply changed so that the content corresponding to the subtree having the specified logical object as a vertex is displayed.

The document display device 1 of this embodiment provides only an instruction to add an underline to the character string of the document content as a display form instruction. It is possible to use, as the display form instruction, a change instruction for any attribute related to the display of the document component provided by the conventional document display device, such as an instruction to change the display color or the background color of. is there.

Next, the case where the reference mode is the node display mode will be described. Here, in the situation where only the content related to the second chapter of the document “Document A” is displayed in the content browser, the referencer 2 sets only the content corresponding to the title of the second chapter in the document A as the other display content. Suppose that you thought to refer separately. With this, referrer 2
Set the display mode to morphological display in advance,
At S61, the second logical structure browser shown in FIG. 8 is displayed.
Logical object corresponding to chapter title (node "T
Then, in S62, the logical object name “TITLE2” to be selected is specified by the input / output interface 14 and sent to the display target determining unit 11 together with the “node filtering” event.

In S63, the display target determining unit 11 performs the processing of S28 in FIG. 2. However, since the reference mode is the node display mode and the display mode is morphological display in this case, the procedure corresponding to this combination in FIG. D is executed. As a result, the content related to the second chapter of the document “Document A” stored in the internal information “Display content” of the display target determining unit 11 is obtained as content data. Further, as the content display form data, an instruction to underline only the content corresponding to the logical object "TITLE2" and a designation of the content start position corresponding to "TITLE2" are obtained.

FIG. 16 is an explanatory diagram of an example of data output by the display target determining unit when the reference mode is the node display mode and the display mode is the form display. The meaning of each symbol is the same as in FIG. In this case, the symbol “<From>” is inserted at the beginning of the title of Chapter 2, and the symbols “<Uline>” and “</ Uline>” are inserted so as to sandwich the title.

Then, in S64, the content image data is generated, and the set of coordinates for designating the area to be displayed by the content browser in the generated image data is also generated. FIG. 17 is an explanatory diagram of an example of content image data and coordinates output by the content display unit when the reference mode is the node display mode and the display mode is the form display. In FIG. 17, the hatched portion indicates
It is a part of the content image data. In the content image data, the symbol “<Uli of the outputs shown in FIG. 16 is included.
An underline is generated in the portion “summary” sandwiched between “ne>” and “</ Uline>”. In FIG. 17, the coordinates of the position to which the symbol “<From>” is added in FIG. 16 is (0,0). These coordinates are output together with the content image data.

Finally, in S65, the display of the content browser is updated by the input / output interface 14, and the referrer 2
Shown in. FIG. 18 is an explanatory diagram of a display example when the reference mode is the node display mode and the display mode is the form display. In this way, as shown in FIG. 18, the content image data corresponding to the instructed chapter 2 title is displayed with an underline added. At this time,
The start position of the content image displayed on the content browser is changed according to the coordinates indicating the start position. In this case, since the given coordinates are (0, 0), the start of the content image is the start of the display. Is displayed as follows.

As described above, the referrer 2 simply specifies the logical object that he or she is paying attention to, underlines only the content corresponding to the logical object, and displays it at the top of the content browser. be able to. Even if this logical object selection is repeated, the corresponding document content is displayed with an underline at the top of the content browser each time. Also in this case, the content to be displayed in the content browser does not change, only the part displayed on the screen is changed.

On the other hand, it may be considered that the referrer 2 wants to refer only to the contents described in the title of Chapter 2 and not to display other contents. In this case, the display mode is changed to the content display in advance via the mode setting window shown in FIG. 10, and then the logical object whose content is to be displayed is selected on the logical structure browser. Then, as in the above example, the series of processing shown in FIG. 11 is performed.

In this case, the procedure in the display target determining section 11 selected in S63 is the procedure C in FIG. 4, and only the content data corresponding to the title of Chapter 2 is output from the display target determining section 11. To be done. Then, in S64, only the content image data of the title portion of Chapter 2 is generated,
In step S65, the content browser that reflects the data is updated. In FIG. 19, the reference mode is the node display mode,
It is explanatory drawing of the example of a display when a display mode is content display. In this way, as shown in FIG. 19, only the content image data corresponding to the instructed chapter 2 title is displayed in the content browser.

As described above, the referrer 2 can refer to only the content corresponding to the logical object by designating the logical object of interest. Even if this logical object selection is repeated, only the corresponding content is displayed in the content browser each time.

Next, the case where the reference mode is the outline mode will be described. Now, in the situation where all the document contents of the document “Document A” are displayed in the content browser, the referrer 2 wants to refer to the contents of the document “Document A” while hiding the contents of the first paragraph of the first chapter. Imagine that you thought.

As a result, the referrer 2 has previously confirmed that FIG.
After setting the reference mode to the outline mode in the mode setting window as shown in, for example, the first paragraph of the first section (node "PARAGAG" of the logical structure browser of FIG. 8).
RAPH1 ") is selected (S61). Here, it is assumed that the display mode is selected as the display mode. In S62, the logical object" PARAGRAPH "is selected.
1 "is specified and passed to the display target determination unit 11. S6
In 3, the procedure E in FIG. 4 is executed, the entire contents of the document “Document A” excluding the contents corresponding to the logical object “PARAGRAPH1” are output, and finally the content browser is updated in S65.

FIG. 20 is an explanatory diagram of a display example when the reference mode is the outline mode and the display mode is the content display. In this way, as shown in FIG. 20, the content corresponding to the instructed first paragraph “in this document ...” Of the first chapter is deleted and displayed.

Following this situation, the referrer 2
Suppose that you want to refer to the contents while hiding not only the contents of the first paragraph of the chapter but also the contents of the second chapter. Then, the referrer 2 follows the first paragraph of the first chapter and then continues to the second chapter (node “SECTION”).
2 ") is selected (S61). At this time, the procedure E shown in FIG.
Since the internal information "display content" of the above holds the content output immediately before, that is, the entire document content excluding the content of the first paragraph of the first chapter, all the content of the second chapter is further excluded from this content. . As a result, only the contents corresponding to the title of Chapter 1 and the second paragraph of Chapter 1 will be output.

FIG. 21 is an explanatory diagram of another display example when the reference mode is the outline mode and the display mode is the content display. From the display example shown in FIG. 20, the entire contents of Chapter 2 have been deleted, and the title “Introduction” of Chapter 1
Only the second paragraph “Note…” of the chapter is displayed.

As described above, in the outline mode, the referrer 2 sequentially selects the logical objects for which the contents of the subtree are desired to be hidden, so that the referrer 2 can concentrate on the reference work of the contents to be noticed.

In the outline mode, since only the content display is valid as the display mode, if the form display is designated as the display mode, the procedure F in FIG. 4 is executed in S63 and an error message is output. 16
Is displayed in, and the display of the content browser is not changed.

Further, in this embodiment, the output of the display object determining device 11 in the outline mode is limited to the content data, but, for example, in the procedure E in FIG. 4, the input logical object display form is changed. By outputting the logical structure data again together with the display form instruction of, the logical object selected in the outline mode is displayed separately from other logical objects, and the logical contents whose contents are hidden at that time are displayed. It is also possible to show the object to the referrer. As a data representation method of the display form instruction at this time, for example, a method of holding an attribute designating a display form in a logical object represented by abstract data can be realized.

Next, the process of changing the display logical structure associated with the content selection operation will be described. FIG. 22 shows the first of the present invention.
10 is a flowchart showing an example of a case where a “manipulation of content” event is input to the display target determination unit in the embodiment of FIG. First, in S71, the referrer 2 selects the content on the content browser via the input device 15. Then, in S72, the input / output interface 14 determines the ordinal number in the content data displayed in the content browser of the selected content based on the position selected in the content image data area,
It is input to the display target determination unit 11 together with the event of “select content”. It should be noted that the selection operation performed by the reference person 2 here is that the input / output interface 14 performs “selection of contents”.
Any operation may be used as long as it can be recognized as corresponding to the event. For example, when a mouse having one button is provided as the input device 15, the left button press operation can be used for other purposes, while the right button press operation can be associated with the “select content” event. Is.

In S73, the display target determining unit 11 causes
The process of S29 of FIG. 2 is executed. For example, a logical object corresponding to the content specified by the input ordinal number is specified and output together with the logical structure data in the internal information “document”. Specifically, targeting the document logical structure in the internal information “document”, the ordinal numbers of the first character and the last character corresponding to each logical object are counted and compared with the ordinal number of the input, and it is equal to or greater than the input ordinal number. Until a logical object is obtained, the logical object in the logical structure is traced in the left depth first.

At S74, the logical structure display unit 12 obtains the logical structure data and the logical object, generates and outputs the logical structure image data based on the logical structure data, and the input logical object is the logical structure image data. Calculate and output the displayed coordinate data. The expression format of the logical structure image data and the coordinate data here can be the same as the data expression format shown in FIGS. 14 and 17.

In S75, the input / output interface 14 generates the image data of the logical structure browser based on the logical structure image data and the coordinate data obtained from the logical structure display unit 12 and displays it through the output device 16. With that, the series of processes is completed.

The data generated in each step when the above processing is executed for concrete data will be described. FIG. 23 is an explanatory diagram of a display example of the content browser in the process of changing the display logical structure associated with the content selection operation. Here, as shown in FIG. 23, it is assumed that the content image of the document “Document A” is displayed in the content browser. On this display screen, the referrer 2 selects the content image "structured document" of the hatched portion in FIG. 23 in S71. In this case, since the first character of the selected content is the 39th character of the whole, the ordinal number output by the input / output interface 14 in S72 is "39". The logical object obtained in S73 is the logical object "PARAGRAPH2".

FIG. 24 is an explanatory diagram of a display example of the logical structure browser in the process of changing the display logical structure associated with the content selection operation. Based on the logical object “PARAGRAPH2” obtained in S73, the logical structure display unit 12
Logical structure image data is created and displayed as shown in FIG. Thus, the referrer 2 can display the logical object corresponding to the selected content on the logical structure browser by merely selecting the content on the content browser.

In this embodiment, the display target determining unit outputs all logical structures in the internal information “document” in response to the “manipulation of contents” event. For example, the display target determining unit 11 in S74. By changing the processing of (3) so that only the partial tree having the logical object specified in S73 as the vertex is output as the logical structure, it is possible to refer to only the partial structure corresponding to the document content that the referrer 2 is interested in. Can be configured to. Further, by changing the process of S74 to output a logical structure obtained as a result of removing the subtree having the logical object specified in S73 as a vertex from the document logical structure, the document content of interest can be dealt with. Only the logical structure obtained as a result of excluding the partial structure to be referred to can be configured so that it can be referred to.

A second embodiment of the document display device of the present invention will be described. In the second embodiment, except for the following two points,
It can be realized with the same device configuration as that of the first embodiment. Moreover, the same situation is assumed as a precondition. -Each logical object in the structured document to be referenced holds the attribute "type" internally-A "type filtering" event is added as an event of the display target determining unit 11, and the procedure G is a corresponding procedure. And that procedure H is added

FIG. 25 is an explanatory diagram of an example of the attribute "type" held by each logical object in the logical structure of "document A" in the second embodiment of the present invention. Each logical object shown in FIG. 7 internally holds the attribute “type”. The attribute "type" is an attribute indicating the type of the logical object. For example, the logical object identifier "PA
RAGRAPH1 "," PARAGRAPH2 "," P
For a logical object with "ARAGRAPH3",
Both hold the attribute “type” of “PARAGRAPH”.

FIG. 26 is a flow chart showing an example of the processing flow of the display object determining section in the second embodiment of the present invention, and FIG.
FIG. 7 is an explanatory diagram of a correspondence relationship between the event, the information to be input, and the process to be executed next, which are also assumed. The flow chart shown in FIG. 26 is the same as the flow of the processing shown in FIG. 2 except that S35 and S36 corresponding to the operation involving the “type filtering” event are added.
A description of each step other than S35 and S36 will be omitted.

In S22 to S26 and S35, the procedure to be performed next is determined based on the input information and the type of event. In this embodiment, as shown in FIG. 27, a “type filtering” event is added as an expected event.

If it is determined in S35 that the event is "type filtering", the logical object identifier is input to the display target determining section 11, and S36 is entered.
The process of is executed next. In S36, the procedure corresponding to the display mode at that time is executed to display various logical structures. Then, in S32, the document display device 1 enters the hibernation state.

FIG. 28 is an explanatory diagram of the correspondence relationship between the display mode and the procedure in the type filtering mode in the second embodiment of the present invention. In the second embodiment, when the reference mode is “type filtering”, the process corresponding to the display mode is executed in S36 of FIG. When the display mode is content display, the internal information “document” is displayed as the document content corresponding to all the logical objects that have the same attribute value of the attribute “type” as the input logical object.
It is specified based on the contents of the document, and arranged in the order of appearance in the document and output.

Further, when the display mode is the form display, the document contents corresponding to all the logical objects having the same attribute value of the attribute "type" as the input logical object are displayed as the document contents in the internal information "display contents". The specified content is underlined and output. Also, the output result is stored in the internal information “display content”.

The change of the display contents accompanying the logical object selecting operation will be described. FIG. 29 is a flow chart for explaining an example of the operation when the logical structure object is selected in the second embodiment of the present invention. This flow is basically the same as the flow shown in FIG. 11 in the first embodiment. The only difference is that in S81, when the referrer 2 selects the logical object to be operated,
Of the "node filtering" event and the "type filtering" event, the selection operation is performed in a form corresponding to the event to be activated. As a method of realizing these operation forms, any method may be adopted as long as the event corresponding to the input / output interface 14 can be specified. For example, when a mouse having two buttons is used as the input device 15, the operation corresponding to the “node filtering” event is associated with the left button pressing operation, and the operation corresponding to the “type filtering” event is associated with the right button. It may be configured to correspond to the button pressing operation.

Accordingly, in S82 and subsequent steps, the input / output interface 14 inputs the event corresponding to the selection operation together with the selected logical object to the display target determining section 11, and the processing corresponding to the event and the mode is executed to execute the logical operation. The structure browser display is updated. When the "node filtering" event occurs in accordance with the selection operation, the processing flow of the referrer 2 and the document display device 1 is exactly the same as the processing flow shown in the first embodiment, so a description will be given. Omit it.

Hereinafter, a case where a "type filtering" event occurs in response to a selection operation will be described. FIG. 30 is a flow chart showing an example of the operation in the case where the “type filtering” instruction is given by the logical structure browser in the second exemplary embodiment of the present invention. Here, the precondition is that the referrer 2 is trying to refer only to the content corresponding to the title of the document “Document A” when the entire content of the document “Document A” is displayed in the content browser. To do.

At this time, the referrer 2 sets the display mode to the content display in advance in the mode setting window. Then, in S91, the logical structure browser means a logical object (here, the logical object “TITLE1” or the logical object “TIT”) from the logical structure browser.
The selection operation corresponding to the "type filtering" event is performed for either LE2 "). Here, it is assumed that the selection operation is performed on the logical object "TITLE1".

Subsequently, in S92, the "type filtering" event and the logical object "TITLE1" are input to the display target determining section 11. Then, in S93, the display target determining unit 11 is activated, and the processing shown in S36 of FIG. 26 is executed. Here, since the display mode is set to display contents, the procedure G in FIG. 28 is selected as the corresponding procedure.

In the procedure G, first, all the logical objects having the same value as the attribute value of the attribute "type" of the input logical object as the attribute value of the attribute "type" are specified from the document logical structure. For example, as shown in FIG. 25, when the attribute value of the attribute "type" of the logical object "TITLE1" is "TITLE", all the logical objects whose attribute value of the attribute "type" is "TITLE" Specified. As a result, logical objects "TITLE1" and "TITLE2" are obtained.
Then, the contents of the obtained logical objects are arranged in the order of appearance in the document, and the document contents obtained as a result are output.
The process of S93 ends.

FIG. 31 is an explanatory diagram of an example of data output by the display target determining unit in type filtering. By the process of S93, the logical object "TIT
The contents “Introduction” and “Summary” of LE1 ”and“ TITLE2 ”are output from the display target determining unit 11.

FIG. 32 is an explanatory diagram of a display example of the content browser when the display mode is the content display in the type filtering. In S94 and S95, based on the output data from the display target determining unit 11 as shown in FIG. 31,
The content display unit 13 generates the content image data and the coordinates designating the display area in the image data, and as a result, the content browser is updated to show the content browser as shown in FIG.

As described above, the referrer 2 simply gives an instruction corresponding to the “type filtering” event to the logical object of interest, and the attribute of the same attribute “type” as that of the logical object. Only the content corresponding to a logical object that has a value can be displayed on the content browser.

Also, when the form display is selected as the display mode, the procedure G in FIG. 28 is executed in S93.
The procedure is the same as that when the content display is selected as the display mode except that the procedure H is executed instead of. FIG. 33 is an explanatory diagram of a display example of the content browser when the display mode is type display in type filtering. When the display mode is the form display, the content corresponding to the logical object having the same attribute value of the attribute “type” as the selected logical object is underlined and displayed on the content browser. As described above, when the logical object "TITLE1" is selected, the logical objects "TITLE1" and "T" are selected.
Contents corresponding to "ITLE2""Introduction","Summary"
Is underlined, and the display image of the content browser as shown in FIG.

In this embodiment, the logical object holds only "type" as an attribute, and in the procedures G and H of the display object determining unit 11, the attribute is specified as a condition for specifying the logical object. The value of "type" was used. However, even when the logical object holds other attributes, the document display device of the present invention performs processing in procedures G and H so as to identify the logical object based on the value of the held attribute. By changing the flow, the same effect as this embodiment can be obtained.

Regarding the processing of changing the expression content associated with the content selection operation in the second embodiment, the processing flow of the referrer 2 and the document display device 1 is the same as the processing flow shown in the first embodiment. Since they are the same, the description is omitted.

In each of the above embodiments, when the display form of the logical structure or the contents is changed, the logical structure display unit and the contents display unit use the input / output interface to change the display form of the logical structure or the contents. The required information was input to the input / output interface. However, for example, the logical structure display unit and the content display unit may input not only the information necessary for changing the display form to the input / output interface, but also an instruction to explicitly change the display form. You can configure it. In this case, the logical structure display means in the claims has a function of actually changing the display form based on the logical structure display unit in the embodiment and the information necessary for changing the display form of the input / output interface. Corresponds to the computer program provided. Further, the content display means in the claims is a content display unit in the embodiment and a computer program that provides a function of actually changing the display form based on information necessary for changing the display form of the input / output interface. Correspond.

[0129]

As is apparent from the above description, according to the invention described in claim 1, the referrer can independently perform the logical structure reference work and the content reference of the structured document.

Further, according to the invention described in claims 2 and 9, the referrer can independently perform the logical structure reference work and the content reference of the structured document, and the referrer is displayed. Since the operation for the logical structure can be reflected in the display of the content, the transition from the reference of the logical structure to the reference of the content for the structured document can be smoothly performed.

According to the third and tenth aspects of the invention, the referrer can independently perform the logical structure reference work and the content reference of the structured document, and the referrer is displayed. Since the operation on the document content can be reflected in the display of the logical structure, the transition from the content reference to the structured document to the logical structure reference can be smoothly performed.

Further, according to the invention described in claim 4, while having the same effect as the invention described in claim 2, the reference person hides the contents corresponding to the logical constitutional unit in the structured document. You can focus on the reference work of the content you want to pay attention to.

Further, according to the invention described in claim 5, while having the same effect as that of the invention described in claim 2, the referrer targets only the contents of the same kind logically as the contents of interest. You can concentrate on the reference work.

Further, according to the invention described in claim 6, the same effect as that of the invention described in claim 2 is obtained, and the reference contents correspond to the subtree having the logical object of interest as the vertex. Can only refer to.

Further, according to the invention described in claim 7, the same effect as the invention described in claim 5 or 6 can be obtained, and the referrer only has the same kind of content as the content of interest. Alternatively, it is possible to refer to the content corresponding to the subtree whose vertex is the logical object of interest, separately from other content.

Further, according to the invention described in claim 8, while having the same effect as that of the invention described in claim 2, the referencer distinguishes the content corresponding to the logical object of interest from other content. The effect is that they can be referenced separately.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a document display device according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing an example of a processing flow of a display target determining unit in the first embodiment of the present invention.

FIG. 3 is an explanatory diagram of a correspondence relationship between an event assumed in a first embodiment of the present invention, input information, and a process to be executed next.

FIG. 4 is an explanatory diagram of a correspondence relationship between a set of a reference mode and a display mode and a procedure.

FIG. 5 is a flowchart illustrating an example of a document display operation in the first embodiment of the document display device of the present invention.

FIG. 6 is an explanatory diagram of an example of a structured document holder window.

FIG. 7 is an explanatory diagram of a logical structure and a correspondence relationship between logical objects and contents in an example of a document.

FIG. 8 is an explanatory diagram of a display example of a logical structure browser window.

FIG. 9 is an explanatory diagram of a display example of a content browser window.

FIG. 10 is an explanatory diagram of a display example of a mode setting window.

FIG. 11 is a flowchart illustrating an example of an operation in a situation where a logical object is selected in the logical structure browser in the first exemplary embodiment of the present invention.

FIG. 12 is an explanatory diagram of a display example when the reference mode is a subtree display mode and the display mode is content display.

FIG. 13 is an explanatory diagram of an example of data output by the display target determining unit when the reference mode is a subtree display mode and the display mode is morphological display.

FIG. 14 is an explanatory diagram of an example of content image data and coordinates output by the content display unit when the reference mode is the subtree display mode and the display mode is morphological display.

FIG. 15 is an explanatory diagram of a display example when the reference mode is a subtree display mode and the display mode is a morphological display.

FIG. 16 is an explanatory diagram of an example of data output by the display target determination unit when the reference mode is a node display mode and the display mode is a morphological display.

FIG. 17 is an explanatory diagram of an example of content image data and coordinates output by the content display unit when the reference mode is the node display mode and the display mode is morphological display.

FIG. 18 is an explanatory diagram of a display example when the reference mode is a node display mode and the display mode is a form display.

FIG. 19 is an explanatory diagram of a display example when the reference mode is the node display mode and the display mode is the content display.

FIG. 20 is an explanatory diagram of a display example when the reference mode is the outline mode and the display mode is the content display.

FIG. 21 is an explanatory diagram of another display example when the reference mode is the outline mode and the display mode is the content display.

FIG. 22 is a flowchart showing an example of a case where a “manipulation of content” event is input to the display target determination unit in the first example of the present invention.

FIG. 23 is an explanatory diagram of a display example of the content browser in the process of changing the display logical structure associated with the content selection operation.

FIG. 24 is an explanatory diagram of a display example of the logical structure browser in the process of changing the display logical structure associated with the content selection operation.

FIG. 25 is an explanatory diagram of an example of an attribute “type” held by each logical object according to the second embodiment of this invention.

FIG. 26 is a flowchart showing an example of the processing flow of the display target determination unit in the second example of the present invention.

FIG. 27 is an explanatory diagram of a correspondence relationship between an event, information to be input, and processing to be executed next, which is assumed in the second embodiment of the present invention.

FIG. 28 is an explanatory diagram of a correspondence relationship between display modes and procedures in the type filtering mode according to the second embodiment of the present invention.

FIG. 29 is a flowchart illustrating an example of an operation in a situation where a logical structure object is selected according to the second embodiment of this invention.

FIG. 30 is a flowchart showing an example of an operation in a situation where a “type filtering” instruction is given by the logical structure browser in the second exemplary embodiment of the present invention.

FIG. 31 is an explanatory diagram of an example of data output by the display target determination unit in type filtering.

FIG. 32 is an explanatory diagram of a display example of a content browser when the display mode is content display in type filtering.

FIG. 33 is an explanatory diagram of a display example of the content browser when the display mode is type display in type filtering.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Document display device, 2 ... Reference person, 11 ... Display target determination part, 12 ... Logical structure display part, 13 ... Content display part, 14 ...
Input / output interface, 15 ... Input device, 16 ... Output device.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Katsuaki Suzuki 3-2-1 Sakado, Takatsu-ku, Kawasaki-shi, Kanagawa KSP R & D Business Park Building Fuji Xerox Co., Ltd. (72) Kenichi Nishida Sakado, Takatsu-ku, Kawasaki-shi, Kanagawa 3-2-1 KSP R & D Business Park Building Fuji Xerox Co., Ltd.

Claims (10)

[Claims] 1. A document display device for displaying a structured document having a logical structure and contents, comprising: a document selecting means for selecting the structured document; a displaying means for displaying the structured document; and the document selecting means. Logical structure display means for displaying the logical structure of the selected structured document on the display means,
A document display device, comprising: content display means for displaying the content of the structured document selected by the document selection means as an area different from the area displayed by the logical structure display means of the display means. . 2. A document display device for displaying a structured document having a logical structure and contents, wherein a document selecting means for selecting the structured document and a logical structure of the structured document selected by the document selecting means are displayed. Logical structure displaying means, a logical structure selecting means for selecting an object which is a node in the logical structure represented by the graph structure displayed by the logical structure displaying means, and a logic selected by the logical structure selecting means. A document display device comprising content display means for displaying content corresponding to an object of a structure. 3. A document display device for displaying a structured document having a logical structure and contents, displaying document selection means for selecting the structured document and contents of the structured document selected by the document selection means. The content display means, the content selection means for selecting a part of the content displayed by the content display means, and the logical structure display means for displaying the logical structure corresponding to the content selected by the content selection means are provided. A document display device characterized by the above. 4. A document display device for displaying a structured document having a logical structure and contents, and a document selecting means for selecting the structured document and a logical structure of the structured document selected by the document selecting means. Logical structure displaying means, a logical structure selecting means for selecting an object which is a node in the logical structure represented by the graph structure displayed by the logical structure displaying means, and an object selected by the logical structure selecting means A document display device comprising content display means for displaying content corresponding to an object other than. 5. A document display device for displaying a structured document having a logical structure and contents, wherein a document selecting means for selecting the structured document and a logical structure of the structured document selected by the document selecting means are displayed. Logical structure displaying means, a logical structure selecting means for selecting an object which is a node in the logical structure represented by the graph structure displayed by the logical structure displaying means, and an object selected by the logical structure selecting means A document display device comprising: a search unit that searches for an object in a structured document having the same attribute as that of; and a content display unit that displays the content corresponding to the object searched by the search unit. 6. A document display device for displaying a structured document having a logical structure and contents, and a document selecting means for selecting the structured document and a logical structure of the structured document selected by the document selecting means. Logical structure displaying means, a logical structure selecting means for selecting an object which is a node in the logical structure represented by the graph structure displayed by the logical structure displaying means, and an object selected by the logical structure selecting means A search means for searching an object in a structured document subordinate to a tree structure expressing a more logical structure; and a content display means for displaying the content corresponding to the object searched by the search means. Document display device. 7. The content display means displays the form in which the content corresponding to the object searched by the search means is displayed differently from the display form of other contents. Alternatively, the document display device according to item 6. 8. A document display device for displaying a structured document having a logical structure and contents, wherein a document selecting means for selecting the structured document and a logical structure of the structured document selected by the document selecting means are displayed. Logical structure displaying means, a logical structure selecting means for selecting an object which is a node in the logical structure represented by the graph structure displayed by the logical structure displaying means, and a logic selected by the logical structure selecting means. Display form instructing means for instructing a form when displaying the content corresponding to the object of the structure, and form instructed by the display form instructing means for the content corresponding to the object of the logical structure selected by the logical structure selecting means A document display device, comprising: a content display means for displaying based on the above. 9. A document display method for displaying a structured document having a logical structure and contents, selecting the structured document, displaying the logical structure of the selected structured document, and displaying the displayed graph structure. A document display method characterized by selecting an object which is a node in a logical structure to be expressed and displaying contents corresponding to the selected object of the logical structure. 10. A document display method for displaying a structured document having a logical structure and contents, selecting the structured document, displaying the contents of the selected structured document, and displaying a part of the displayed contents. A method for displaying a document, characterized by selecting and displaying a logical structure corresponding to the selected content.