JPH10171703A - Site map display device and document access supporting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly display anchors included in a specified resource as a list by acquiring only an HTML file included in a document corresponding to an inputted URL from a server in a network and storing each anchor included in the HTML file relatively to a corresponding linked URL. SOLUTION: When the URL of a document to be analyzed is sent to a server (step 23), only an HTML file included in the corresponding document is acquired from the server and stored in a memory (step 24). When an HTML file to be analyzed is stored in the memory, analytical processing for searching an anchor included in the HTML file is executed (step 25). When the end of analytical processing for all documents included in hierarchies up to the number of hierarchies specified by a user is discriminated (step 27), respective anchors stored in the memory are displayed like a tree so as to understand hierarchical structure (step 29).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a site map display device and a document browsing support device.

[0002]

2. Description of the Related Art Generally, when using WWW (world wide web) services, Netscape Navigator (product name)
A client-side application called a WWW browser is used. When the user requests a document placed on the WWW server, the document name UR
Specify L (uniform Resource Locator) from the browser. Then, a transmission request is sent from the browser to a server having the document (resource), and the specified document is sent from the server.

[0003] Of the documents sent from the WWW server, hypertext type documents have embedded therein link information indicating other documents and the like. The hypertext type document is described in a language called HTML. HTM
In L, the link information is described using a start tag and an end tag. And link destination information (link information)
Is specified by a URL. An anchor such as a keyword is inserted between the start tag and the end tag. When the keyword that is the anchor is clicked, the browser sends a transmission request to the server that has the linked document,
The document is sent from the server to the browser.

[0004]

By the way, when a WWW browser acquires a document (resource) on the Internet and wants to browse two linked documents included in the acquired document, three clicks are required. Operation is required.

[0005] That is, as shown in FIG. 7, when the user wants to browse the linked documents B and C included in the document A obtained from the server on the Internet, first,
The document B included in the document A is clicked to set the link as the link destination, and the document B is acquired and browsed. Next, W
Clicking the BACK button displayed by the WW browser to return to the previous display screen, returns the display screen to the display screen of the document A. Then, the user clicks an anchor having the link to the document C included in the document A to acquire and browse the document C.

When n links are present in one document, (2n-1) click operations are required in order to browse all the linked documents in the same manner as described above. Required. In addition, in order to browse a linked document up to two or more layers, many click operations are required according to the number of layers.

An object of the present invention is to provide a site map display device capable of displaying a list of anchors included in a specified resource in a short time.

Another object of the present invention is to provide a site map display device which can display anchors included in documents from a designated document up to a designated number of layers so that the hierarchical structure can be understood and a tree can be displayed in a short time. It is in.

[0009] Another object of the present invention is to provide a document browsing support apparatus which makes it very easy to specify each document when the user wants to view each linked document included in the specified document. Is to do.

Another object of the present invention is to perform an operation for designating each document when it is desired to view each linked document included in the documents from the designated document to the designated number of layers. An object of the present invention is to provide a simplified document browsing support device.

[0011]

A first site map display apparatus according to the present invention comprises: means for inputting a URL;
HTM included in the document corresponding to the input URL
Means for acquiring only the L file from the server on the network, and linking each anchor included in the acquired HTML file to a UR corresponding to the anchor
L in the storage means, and
There is provided a means for displaying a list of all anchors included in the ML file.

A second site map display apparatus according to the present invention includes a unit for inputting a URL, a unit for inputting the number of layers of a document whose anchor is to be analyzed,
Means for acquiring only the HTML file included in the document corresponding to the RL from the server on the network, and sequentially extracting the URL of the document whose anchor is to be analyzed from the acquired HTML file according to the number of input layers Then, the H included in the document corresponding to the extracted URL
Means for acquiring only the TML file from the server on the network, storing in the storage means each of the anchors contained in each of the acquired HTML files in association with the URL of the link corresponding to the anchor, There is provided a means for displaying all the included anchors in a tree so that the hierarchical structure can be understood.

[0013] The first browsing support device according to the present invention comprises a U
Means for inputting an RL, means for obtaining only an HTML file included in a document corresponding to the input URL from a server on a network, and linking each anchor included in the obtained HTML file to the anchor Means for storing in the storage means in association with the previous URL and displaying a list of all anchors included in the HTML file; means for allowing the user to specify an arbitrary anchor on the anchor list display screen; And the U corresponding to the specified anchor
It is characterized by comprising means for reading out the RL from the storage means as the URL of the document to be browsed.

[0014] A second browsing support device according to the present invention comprises a U
Means for inputting an RL, means for inputting the number of layers for which an anchor is to be analyzed, means for obtaining only an HTML file included in a document corresponding to the input URL from a server on a network, and input The URLs of the documents whose anchors are to be analyzed are sequentially extracted from the acquired HTML files in accordance with the obtained number of layers, and only the HTML files included in the documents corresponding to the extracted URLs are acquired from the server on the network. Means to store each anchor included in each acquired HTML file in a storage means in association with a URL of a link destination corresponding to the anchor, and store all anchors included in each HTML file in a hierarchical structure. Means of tree display so that you can understand, any anchor on the tree display screen of the anchor Means, as well as corresponding to the specified anchor URL for specified by the user
Is read from the storage unit as the URL of the document to be viewed.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the overall system configuration.

This system comprises a WWW client 1 having a personal computer and the like, and a WWW server 3 connected to the WWW client 1 via the Internet 2.

A display 11, a mouse 12, and a keyboard 13 are connected to the personal computer of the WWW client 1. The personal computer of the WWW client 1 includes a CPU 10, a hard disk 14, a memory 15, and the like. Hard disk 1
4, an area E1 in which an OS (Operating System) is stored, an area E2 in which a WWW browser is stored, and an area E3 in which an application for realizing the present invention (hereinafter referred to as a browser support program) is stored. And an area (storage area) E4 for storing a document (recorded document) recorded by the browser support program.

The WWW client 1 executes the following functions by the browser support program.

A function (recording function) of obtaining a document on the Internet and storing it on a hard disk in a format that allows a link relationship to be traced. A function (site map display function) in which anchors included in documents from a specified document to a specified number of layers can be displayed in a tree in a short time so that the hierarchical structure can be understood. When the user specifies an arbitrary anchor among the anchors displayed by the above site map display function, the document corresponding to the specified anchor is displayed on the WWW.
Function to browse using a browser (browsing function using site map).

Hereinafter, each of the above functions will be described.

(1) Description of recording function

When recording is desired, the user may select a recording mode on the menu screen of the browser support program and specify the URL of a document to be recorded.

When a user wants to record a document in a lower layer of the document to be recorded, the user designates up to which layer the document is to be recorded on the menu screen of the browser support program. be able to. That is, the number of layers (0, 1, 2,... All layers) can be designated.

FIG. 2 shows a recording processing procedure by the browser support program executed when the recording mode is selected on the menu screen of the browser support program and the URL of the document to be recorded is specified.

First, it is determined whether or not a file name exists in the URL specified by the user (step 1). If the file name exists in the designated URL, the process proceeds to step 3 with the designated URL as the URL of the document to be recorded. If the file name does not exist at the specified URL, the file name is changed to index.
html (step 2) and the postulated URL
Is set as the URL of the document to be recorded, and the process proceeds to step 3.

In step 3, whether or not the document to be recorded has already been recorded,
It is determined whether or not the data has already been stored.

If the document to be recorded has not been recorded yet, the URL of the document to be recorded is sent to the server, and the corresponding document is obtained (step 4).

Then, the data (received data) of the obtained document is analyzed (HTML analysis), and file names such as html and gif belonging to the document are obtained (step 5).

Thereafter, the data constituting the obtained document is stored in the hard disk 14 (step 6).
At this time, data constituting the obtained document is stored on the hard disk 14 so that the file name and the file extension obtained by the HTML analysis are used as they are and the directory structure obtained by the HTML analysis is reproduced. . Therefore, the file name and identifier of the recorded document can be recognized, and processing, editing, and searching can be performed by other software. When a recorded document is viewed, a link relationship can be traced in a group of documents recorded on the hard disk.

Next, it is determined whether or not processing for all documents included up to the number of layers specified by the user has been completed (step 7).

If the processing for all documents included up to the number of layers specified by the user has not been completed, the URL (obtained by HTML analysis) corresponding to the document to be recorded next is stored in the document to be recorded. (Step 8), and the process returns to step 3.

If it is determined in step 3 that the document to be recorded has already been recorded, it is determined whether or not a mode for checking data update is set (step 9). This setting is performed by the user on the menu screen.

If the mode for checking data update is not set, the document to be recorded is read from the hard disk 14 into the memory 15 (step 10), and the HT
An ML analysis is performed (step 11).

Then, it is determined whether or not the processing has been completed for all documents included up to the number of layers specified by the user (step 7). If the processing for all the documents included up to the number of layers specified by the user has not been completed, the URL (obtained by the HTML analysis) corresponding to the document to be recorded next is the URL of the document to be recorded. (Step 8), and the process returns to Step 3.

If the mode for checking data update is set in step 9 above, it is determined whether the period from the time when the document to be recorded was last recorded to the present time is within the preset expiration date. It is determined (step 12). This expiration date is set by the user on the menu screen. By default, for example, it is set to 6 hours.

If the period from the time when the document to be recorded was last recorded to the present time exceeds the preset expiration date, the URL of the document to be recorded and the previous recording time (year, month, day) of the document to be recorded are set. And a time), a message is sent to the server on the Internet to request data only when the data of the recording target document has been updated after the previous recording time of the recording target document (step 1).
3).

If the data of the document to be recorded is updated after the previous recording time of the document to be recorded, the server on the Internet sends the corresponding data (update data), and the server of the previous recording time of the document to be recorded is updated. If the data of the recording target document is not updated later, a message indicating that (data not updated) is transmitted.

If a non-update message has been sent after the processing in step 13 (NO in step 14), the process proceeds to step 10.

Therefore, in this case, the document to be recorded is read from the hard disk 14 into the memory 15 (step 10), and the HTML analysis is performed (step 1).
1).

Then, it is determined whether or not the processing has been completed for all documents included up to the number of layers specified by the user (step 7). If the processing for all the documents included up to the number of layers specified by the user has not been completed, the URL (obtained by the HTML analysis) corresponding to the document to be recorded next is the URL of the document to be recorded. (Step 8), and the process returns to Step 3.

After the processing in step 13, if the update data has been sent (YES in step 14), the process proceeds to step 5.

Therefore, in this case, the data (received data) of the acquired document is analyzed (HTML analysis), and the file names such as HTML and GIF belonging to the document are obtained (step 5).

Next, data constituting the obtained document is stored in the hard disk 14 (step 6).
At this time, data constituting the obtained document is stored on the hard disk 14 so that the file name and the file extension obtained by the HTML analysis are used as they are and the directory structure obtained by the HTML analysis is reproduced. .

Then, it is determined whether or not the processing for all documents included up to the number of layers specified by the user has been completed (step 7). If the processing for all the documents included up to the number of layers specified by the user has not been completed, the URL (obtained by the HTML analysis) corresponding to the document to be recorded next is the URL of the document to be recorded. (Step 8), and the process returns to Step 3.

If it is determined in step 7 that the processing for all the documents included up to the number of layers specified by the user has been completed, the current recording processing ends.

(2) Explanation of site map display function

To display a site map,
The user only has to select the site map display mode on the menu screen of the browser support program and specify the URL of the document serving as the reference for the site map display.

If the user wants to display not only the anchors contained in the document serving as the reference for the site map display but also the anchors contained in the documents in the lower hierarchy of the document, the user must On the menu screen of the browser support program, it is possible to specify up to which hierarchy the document contained in the anchor is to be displayed. That is, the number of layers (0, 1, 2,... All layers) can be designated.

FIG. 3 shows a site map display process by the browser support program executed when the site map display mode is selected on the menu screen of the browser support program and the URL of the document serving as the reference for the site map display is designated. The procedure is shown.

First, it is determined whether or not a file name exists in the URL specified by the user (step 21). If a file name exists in the designated URL, the process proceeds to step 23 with the designated URL as the URL of the analysis target document. If the file name does not exist at the specified URL, the file name is changed to inde
x. html (step 22), and the process proceeds to step 23 with the postulated URL as the URL of the document to be analyzed.

In step 23, by sending the URL of the document to be analyzed to the server, only the HTML file contained in the corresponding document is obtained from the server and stored in the memory 15 (step 24).

In a normal WWW browser, when a URL is sent from a WWW browser to a server, first, an HTML file included in the document is sent to the WWW browser. If the document corresponding to the URL includes data other than the HTML file such as audio data and image data, the data other than the HTML file is again taken to the server based on the content of the acquired HTML file. Will go to. In step 24, unlike the operation of the normal WWW browser, the document corresponding to the URL sent to the server contains H such as audio data and image data.
Even if data other than the HTML file is included, the data other than the HTML file is not available to the server.

The HTML file to be analyzed is stored in the memory 15
, An analysis process is performed to search for an anchor included in the HTML file (step 25). This analysis is performed from the beginning of the HTML file. In this analysis process, every time an anchor is searched, the searched anchor is stored in the memory 15 in association with the corresponding linked URL. In addition, data indicating to which layer each searched anchor corresponds is also stored in the memory 15.

When the analysis for anchor search is completed up to the end of the sentence of the HTML file (YES in step 26), whether or not the analysis processing for all documents included up to the number of layers specified by the user is completed. Is determined (step 27).

If the processing for all the documents included up to the number of layers specified by the user has not been completed, the URL corresponding to the next document to be analyzed (step 2)
5) obtained from the analysis target document.
RL (step 28), and the process returns to step 23. Then, the URL of the new document to be analyzed is sent to the server,
Only the HTML file included in the corresponding document is obtained from the server, and analysis processing for anchor search is performed. That is, steps 23, 24, 25, 26
And 27 are executed again.

If it is determined in step 27 that the analysis processing for all the documents included up to the number of layers specified by the user has been completed, each anchor stored in the memory 15 is changed so that the hierarchical structure can be understood. A tree is displayed (step 29). That is, a site map is displayed. Then, the current site map display processing ends.

FIG. 4 shows an example of the site map. In FIG. 4, X1 and Y1 are anchors included in the document A. X2 is an anchor included in the document X1. Y2 is an anchor included in the document Y1.

According to the above site map display processing, only the HTML file necessary for extracting the anchor is obtained from the server, and data other than the HTML file having a large capacity such as audio data and image data is not obtained. Therefore, a site map can be created in a short time.

Further, since the site map is composed of anchors, it is easy for the user to imagine the contents of the document corresponding to the anchor. Therefore, when browsing using the site map described later, a document to be browsed is selected from the site map. Easier to do.

(3) Description of browsing function using site map

A description will be given of a function in which a user designates an arbitrary anchor from the anchors displayed by the site map display function, and the document corresponding to the designated anchor is browsed using a WWW browser.

The browsing mode includes a hard disk mode in which a document corresponding to a specified URL is acquired from the hard disk and displayed on a WWW browser only when a document corresponding to the specified anchor is stored on the hard disk. And an Internet connection mode in which when the document corresponding to the designated anchor is not stored on the hard disk, the document is acquired from the server and displayed on a WWW browser.

Further, in the Internet connection mode,
If the document corresponding to the specified anchor is stored on the hard disk, it is determined whether the time from the time when the document was last recorded to the present time is within a preset expiration date, and the If the time from the recorded time to the present time exceeds the preset expiration date, obtain the document from the server, update the contents in the hard disk and display it on the browser, and specify the data update check mode. When the document corresponding to the anchor is stored on the hard disk, the specified time is determined without determining whether the time from the time when the document was last recorded to the current time is within a preset expiration date. Get the document corresponding to the anchor from the hard disk,
There is a data update non-check mode to be displayed on the WWW browser.

These browsing modes are set by the user on the menu screen of the browser support program.

When browsing is desired, the user may click the anchor of the document to be browsed with the mouse 12 on the site map (anchor tree display screen) displayed by the browser support program.

FIGS. 5 and 6 show a browsing processing procedure executed when an arbitrary anchor is clicked on the site map by the mouse 12.

The browser support program also functions as a proxy server, and it is assumed that a proxy server (hereinafter, referred to as a mirror server) of the browser support program is selected and set as the proxy server in the WWW browser.

First, when an arbitrary anchor on the site map is clicked (step 41), the URL corresponding to the clicked anchor is read from the memory 15 (step 42). Further, it is determined whether the browsing mode is the hard disk mode or the Internet connection mode (step 43).

If the browsing mode is the hard disk mode, it is determined whether or not the document (browsing target document) corresponding to the URL read in step 42 is stored in the mirror server, 14 is determined (step 44).

If the document to be browsed is not stored in the mirror server, a message indicating that the specified document does not exist is sent to the WWW browser (step 4).
5). In this case, the WWW browser displays "The specified document does not exist".

In step 44, the document to be browsed is
If it is determined that it is stored on the mirror server,
The URL of the document to be viewed is passed to the WWW browser (step 46).

The WWW browser sends a UR from the mirror server
When L is received, a document (browsing target document) corresponding to the URL is obtained from the mirror server which is a proxy server. The document corresponding to the URL (the document to be viewed) is W
When the WWW browser comes to acquire, that is, when the URL from the WWW browser is received (step 47), the mirror server reads the document to be viewed from the hard disk 14 and sends it to the WWW browser (step 48).
The WWW browser displays a home page based on the data sent from the mirror server.

If it is determined in step 43 that the browsing mode is the Internet connection mode, it is determined whether the browsing target document is stored on the hard disk 14 as a recorded document (step 49).

If the document to be browsed is not stored on the hard disk 14 as a recorded document, the URL of the document to be browsed is passed to the WWW browser (step 50), and the URL of the document to be browsed is sent to the server on the Internet. Is sent, a process of acquiring a document to be viewed is performed (step 51).

The WWW browser obtains a document (browsing target document) corresponding to the URL from the mirror server which is a proxy server. When the WWW browser obtains a document (browsing target document) corresponding to the URL with respect to the mirror server which is a proxy server (step 52), the mirror server obtains the browsing target document by the obtaining process in step 51. If it has already been downloaded (YES in step 53), the read target document is read from the hard disk 14 and sent to the WWW browser (step 54). The WWW browser displays a home page based on the data sent from the mirror server.

In step 53, if the document to be viewed has not been downloaded yet (N in step 53)
O) In parallel with the acquisition processing in step 51, the proxy server performs acquisition processing of the document to be browsed from the server on the Internet (step 55), and transfers the acquired data to W
The data is sent to the WW browser (step 56). The WWW browser, based on the data sent from the mirror server,
Display the home page.

In step 49 of FIG. 5, when the document to be browsed is stored on the hard disk 14 as a recorded document, it is determined whether the data update check mode is set or the data update non-check mode is set. It is determined (step 57).

If the data update non-check mode is set (NO in step 57), the flow shifts to step 46. Therefore, in this case, the same processing as in the case where the browsing target document is stored in the mirror server in the hard disk mode is performed.

If the data update check mode is set (YES in step 57), it is determined whether the period from the last recording of the document to be browsed to the current time is within a preset expiration date. (Step 5
8). This expiration date is set by the user on the menu screen. By default, for example, it is set to 6 hours.

If the period from the last recording of the document to be browsed to the current time is within the preset expiration date, the process proceeds to step 46. Therefore, in this case, the same processing as in the case where the browsing target document is stored in the mirror server in the hard disk mode is performed.

If it is determined in step 58 that the period from the time when the document to be browsed was last recorded to the present time has exceeded the preset expiration date,
A message stating that data should be provided only when the data of the document to be browsed has been updated since the last recording time of the document to be browsed, together with the URL of the document to be browsed and the previous recording time (year, month, day and time) of the document to be browsed. Is sent to a server on the Internet, whereby a process of acquiring a document to be viewed is performed (step 59).

When the data of the document to be browsed has been updated after the previous recording time of the document to be browsed, the server on the Internet sends the corresponding data (update data), and the data of the previous recording time of the document to be browsed is updated. If the data of the document to be browsed is not updated later, a message indicating that (data not updated) is sent.

After the process of step 59, if a non-update message has been sent (NO in step 60), the flow shifts to step 46. Therefore, in this case, the same processing as in the case where the browsing target document is stored in the mirror server in the hard disk mode is performed.

When the update data has been sent after the processing in step 59 (YES in step 60), the URL of the document to be browsed is passed to the WWW browser (step 61), and the data in the hard disk 14 is read. Update is performed (step 62). That is, based on the data of the document acquired this time, the data of the corresponding old document already stored in the hard disk 14 is rewritten.

At this time, if there are documents in the hard disk 14 that have a link relationship with the updated documents, these documents are also processed from the server on the Internet by the same processing as in steps 58 and 59. It is preferable to acquire new data (only when updated) and rewrite the data.

The WWW browser obtains a document (browsing target document) corresponding to the URL from the mirror server which is a proxy server. When the WWW browser obtains a document (browsing target document) corresponding to the URL from the mirror server which is a proxy server (step 5).
2) In the mirror server, if the document to be viewed has already been downloaded by the acquisition processing in step 59 (YES in step 53), the document to be viewed is read from the hard disk 14 and sent to the WWW browser (step 54). ). The WWW browser displays a home page based on the data sent from the mirror server.

In step 53, if the document to be viewed has not been downloaded yet (N in step 53
O) In parallel with the acquisition process in step 59, the proxy server acquires the document to be browsed from the server on the Internet (step 55) and sends it to the WWW browser (step 56). The WWW browser displays a home page based on the data sent from the mirror server.

According to the browsing process, by simply clicking an arbitrary anchor on the site map display screen (anchor tree display screen), a document corresponding to the anchor is acquired from a server or a hard disk on the Internet. Can be viewed.

Therefore, based on the site map created based on the reference document, the reference document is
A document having a link relationship can be easily and quickly browsed.

For example, referring to the example of FIG. 4, when an anchor X1 is clicked on the site map display screen, a document corresponding to the anchor X1 is displayed by a browser. When the anchor X2 is clicked on the site map display screen, a document corresponding to the anchor X2 is displayed by the browser. When the anchor Y1 is clicked on the site map display screen, a document corresponding to the anchor Y1 is displayed by the browser. Also, anchor Y on the site map display screen
When the user clicks 2, the document corresponding to the anchor Y2 is displayed by the browser.

When an arbitrary anchor is selected from the site map, a document corresponding to the anchor may always be obtained from a server on the Internet. In such a case, when an arbitrary anchor is selected from the site map, the U corresponding to the anchor is selected.
The RL is simply passed to the browser, and the UR
The document corresponding to L may be obtained from a server on the Internet.

It is also preferable that, when a text name is clicked, a URL corresponding to the reference document is read from the RAM in the reference document of the site map display. In this way, the reference document can be displayed by the browser by clicking the text name corresponding to the reference document on the site map display screen.

[0094]

According to the present invention, there is provided a site map display device capable of displaying a list of anchors included in a designated document in a short time.

According to the present invention, it is possible to obtain a site map display device capable of displaying, in a short time, a tree of anchors included in documents from a designated document to a designated number of layers so that the hierarchical structure can be understood.

According to the present invention, it is possible to obtain a document browsing support apparatus in which, when it is desired to browse each linked document included in a specified document, an operation for designating each document is extremely simple.

According to the present invention, when it is desired to browse the linked documents included in the documents from the designated document to the designated number of layers, the operation for designating each document is very simple. A document browsing support device is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the overall configuration of a system.

FIG. 2 is a flowchart showing a recording processing procedure executed by a browser support program.

FIG. 3 is a flowchart showing a site map display processing procedure executed by a browser support program.

FIG. 4 is a schematic diagram showing an example of a site map.

FIG. 5 is a flowchart showing a browsing process procedure using a site map executed by the browser support program.

FIG. 6 is a flowchart showing a browsing process procedure using a site map executed by the browser support program.

FIG. 7 is a schematic diagram for explaining an operation performed by a user when browsing two linked documents included in a document acquired by a WWW browser.

[Explanation of symbols]

 1 WWW client 2 Internet 3 WWW server 10 CPU 14 Hard disk 15 Memory

Claims (4)

[Claims] 1. Means for inputting a URL, HTM included in a document corresponding to the input URL
Means for acquiring only the L file from the server on the network, and linking each anchor included in the acquired HTML file to a UR corresponding to the anchor
L in the storage means, and
Means for displaying a list of all anchors included in the ML file. 2. A means for inputting a URL, a means for inputting the number of layers of a document whose anchor is to be analyzed, and an HTM included in a document corresponding to the input URL.
A means for acquiring only the L file from the server on the network, and the acquired H in accordance with the input number of layers
UR of the document whose anchor should be analyzed from the TML file
Means for sequentially extracting L and acquiring only HTML files included in the document corresponding to the extracted URL from a server on the network, and corresponding each anchor included in each acquired HTML file to the anchor. Means for storing in the storage means in association with the URL of the link destination to be linked, and means for displaying all the anchors included in each HTML file in a tree so that the hierarchical structure can be understood. 3. A means for inputting a URL, an HTM included in a document corresponding to the input URL.
Means for acquiring only the L file from the server on the network, storing each anchor included in the acquired HTML file in the storage means in association with the URL of the link destination corresponding to the anchor, and including the anchor in the HTML file Means for displaying a list of all anchors, means for specifying an arbitrary anchor by a user on an anchor list display screen, and a URL corresponding to the specified anchor in the U
Means for reading from a storage means as RL. 4. A means for inputting a URL, a means for inputting the number of layers for which an anchor is to be analyzed, and an HTM included in a document corresponding to the input URL
A means for acquiring only the L file from the server on the network, and the acquired H in accordance with the input number of layers
UR of the document whose anchor should be analyzed from the TML file
Means for sequentially extracting L, and acquiring only HTML files included in the document corresponding to the extracted URL from a server on the network, and assigning each anchor included in each acquired HTML file to the anchor. Means for storing in the storage means in association with the URL of the link destination, and displaying all anchors included in each HTML file in a tree so that the hierarchical structure can be understood; Means, and a URL corresponding to the specified anchor are stored in the U
Means for reading from a storage means as RL.