JP2007079863A - Web page display device, web page display method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a Web page display device, in which a desirable rendering engine can be selected in display of a Web page using rendering engine. <P>SOLUTION: In this Web page display device, data of the Web page is acquired, a rendering engine used for displaying the Web page is selected from a plurality of rendering engines based on the content of the Web page, and the Web page is displayed using the selected rendering engine. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a web page display device, a web page display method, and a program for displaying a web page using a rendering engine.

  In general, when a computer displays a web page acquired via the Internet using a program such as a web browser, the content of the web page is parsed and the rendering engine uses the information such as tags obtained by the parse analysis. Based on the formatting of the format based on this, it is displayed on the screen. There are a plurality of types of rendering engines that are generally used. Even when the content of the same web page is displayed, the layout on the screen may differ depending on the rendering engine used. In addition, as a result of different tags and the like depending on the rendering engine, the function of the web page intended by the creator of the web page may not be realized depending on the rendering engine used. Thus, there is a web page display device that displays a web page using a rendering engine selected from a plurality of rendering engines based on information such as user settings and URLs specified in advance.

Alternatively, there is a technique of providing content to a user using a content view selected from a plurality of content views based on the user's selection (see, for example, Patent Document 1).
JP 2004-259277 A

  However, according to the above-described conventional technique, the desired rendering engine can be selected only when the user already knows the desired rendering engine for a certain web page.

  The present invention has been made in view of the above circumstances, and one of its purposes is a web page display device and a web page display method capable of selecting a desired rendering engine when a web page is displayed using the rendering engine. And providing a program.

  A web page display device according to the present invention for solving the above problems includes a web page acquisition means for acquiring data of a web page, and a rendering engine used for displaying the web page based on the content of the web page. A rendering engine selection means for selecting a plurality of rendering engines, and a web page display means for displaying the web page using the rendering engine selected by the rendering engine selection means.

  Accordingly, the web page display device according to the present invention can select a desirable rendering engine by selecting a rendering engine based on the content of the web page.

  Here, the rendering engine selection unit may select a rendering engine based on a selection rule that associates a determination condition regarding the content of a web page with at least one of a plurality of rendering engines.

  Alternatively, the rendering engine selection unit is associated with the determination condition that the web page satisfies based on a selection rule that associates a determination condition regarding the content of the web page with a weighting coefficient for each of the selectable rendering engines. Alternatively, a rendering engine may be selected by comparing weighting factors for each of the selectable rendering engines.

  Further, the web page display method according to the present invention includes a step of acquiring web page data using a computer, and a plurality of rendering engines used for displaying the web page based on the content of the web page. Selecting from a rendering engine; and displaying the web page using the selected rendering engine.

  Further, the program according to the present invention includes a web page acquisition unit that acquires data of a web page, and a rendering engine that selects a rendering engine to be used for displaying the web page based on contents of the web page from a plurality of rendering engines. Using the engine selection means and the rendering engine selected by the rendering engine selection means, the computer functions as a web page display means for displaying the web page.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the web page display device according to the embodiment of the present invention includes a control unit 11, a storage unit 12, an operation unit 13, a display unit 14, and a communication unit 15.

  Here, the control unit 11 is, for example, a CPU or the like, and operates according to a program stored in the storage unit 12. In the present embodiment, the control unit 11 selects a rendering engine and performs a process of outputting a web page to the display unit 14 using the selected rendering engine. The contents of the process executed by the control unit 11 will be described in detail later.

  The storage unit 12 includes at least one of a memory element such as a RAM and a ROM, a disk device, and the like. The storage unit 12 stores a program executed by the control unit 11 and a selection rule table used for selecting a rendering engine in the present embodiment. The storage unit 12 also operates as a work memory for the control unit 11. The contents of the selection rule table stored in the storage unit 12 will be described in detail later.

  The operation unit 13 is a keyboard, a mouse, or the like, receives a user's instruction operation, and outputs the content of the instruction operation to the control unit 11. The display unit 14 is a display or the like, and displays information according to an instruction from the control unit 11.

  The communication unit 15 is a network card, a modem, or the like, and transmits information via the network according to an instruction from the control unit 11. The communication unit 15 receives information that arrives via the network and outputs the information to the control unit 11.

  Below, the flow of the process which the control part 11 performs when displaying a web page using the web page display apparatus which concerns on this Embodiment is demonstrated based on the flowchart of FIG.

  First, the control part 11 acquires the data of the designated web page from the web server connected to the network via the communication part 15 based on the instruction | indication operation with respect to the operation part 13 of a user (S1). This process can be realized by a standard function of http.

  Next, the control unit 11 performs syntax analysis on the web page data acquired by the process of S1 (S2). Specifically, when a web page is described in a markup language including a tag such as HTML, the tag included in the web page is detected, the data of the web page is divided by the tag, and the data structure Is analyzed. For example, when a web page as shown in FIG. 4 is acquired by the process of S1, data of a tree structure as shown in FIG. 7 is obtained as a result of the syntax analysis as a result of the process of S2. When a web page as shown in FIG. 5 is acquired, data as shown in FIG. 8 is obtained as a syntax analysis result. In FIG. 7 and FIG. 8, the rectangle surrounded by a solid line represents a tag element, and the broken rectangle represents a text element.

  Subsequently, based on the content of the web page or the data of the parsing result obtained as a result of performing the processing of S2 on the web page, the control unit 11 performs the processing from among a plurality of rendering engines according to a predetermined condition. A rendering engine used for displaying the web page is selected (S3). Here, the rendering engine has a function of determining the layout, format, display mode, and the like of data such as characters and graphics based on the result of the syntax analysis by the process of S2, for example, and determining the screen to be displayed on the display unit 14. It is a program.

  As a method of selecting a rendering engine, for example, there is a method of selecting a rendering engine based on a selection rule with a priority set. In this case, the web page display apparatus according to the present embodiment holds a selection rule table as shown in FIG. In this selection rule table, the priority order, the determination condition regarding the content of the web page, and the rendering engine are associated with each other. Using the selection rule table, the control unit 11 sets, as a priority, whether the content of the web page acquired by the process of S1 or the parsing result obtained by the process of S2 satisfies the determination condition. Determine according to order. As a result, when the determination condition is satisfied first, the rendering engine associated with the determination condition is selected as the rendering engine to be used in the process of S4.

Specifically, in the example of the web page shown in FIG. 4, for example, the <meta> tag element is http-equiv = “Rendering-Engine” as shown in the syntax analysis result shown in FIG.
Since it has the attribute content = “RenderingEngineA”, the determination condition associated with priority 1 is satisfied. Therefore, the control unit 11 selects the rendering engine A associated with the priority order 1 regardless of other determination conditions. Further, for example, in the example of the web page shown in FIG. 5, as shown in the syntax analysis result shown in FIG. 8, the determination conditions associated with the priorities 1 to 3 are not satisfied, and the priority 4 is supported. The attached judgment condition is satisfied. Therefore, the control unit 11 selects the rendering engine B associated with the priority order 4. Here, as the determination condition included in the selection rule table, for example, a condition that a predetermined character string is included in the data of the web page can be used. In addition, a predetermined tag element is included in the data of the parsing result, the predetermined tag element has a predetermined attribute, or a predetermined condition (for example, a predetermined character string is included) below the predetermined tag element. Etc.) can be used.

  As another method for selecting a rendering engine, for example, there is a method of using a selection rule that associates a determination condition regarding the content of a web page with a weighting coefficient for each selectable rendering engine. In this case, the web page display apparatus according to the present embodiment holds a selection rule table as shown in FIG. In this selection rule table, a determination condition regarding the content of a web page is associated with a weighting coefficient for each rendering engine. For each determination condition included in the selection rule table, the control unit 11 determines whether the content of the web page acquired by the process of S1 or the syntax analysis result obtained by the process of S2 satisfies the condition. Then, the weighting coefficients associated with the determination conditions determined to satisfy the conditions are summed for each rendering engine. Finally, the control unit 11 selects the rendering engine with the highest total value obtained as the rendering engine to be used in the process of S4.

  For example, if the acquired web page is like the example shown in FIG. 9, the data shown in FIG. 10 is obtained as the syntax analysis result by the process of S2. When it is determined whether or not this parsing result satisfies each determination condition of the selection rule table shown in FIG. 6, the determination conditions of numbers 3, 4 and 6 are satisfied, and the other determination conditions are not satisfied. Results are obtained. In this case, the total value of the weighting coefficients for the rendering engine A is 15, the total value for the rendering engine B is 9, and the total value for the rendering engine C is 5. Therefore, the control unit 11 selects the rendering engine A having the highest total weighting coefficient value.

  Further, in the web page display device according to the present embodiment, a determination condition related to other than the content of the web page may be included as a determination condition of the selection rule. For example, for a web page corresponding to a predetermined URL or a web page including a predetermined character string in the URL, a condition regarding the URL may be included in the selection rule table so that a rendering engine associated in advance is always selected. Good. Further, the control unit 11 may select a rendering engine by using a combination of the above-described plurality of types of selection rule tables. Specifically, for example, when one of the determination conditions associated with the priority order is satisfied, one rendering engine is selected according to the priority order, and all the determination conditions associated with the priority orders are not satisfied In this case, the determination condition associated with the weighting coefficient is determined, and the rendering engine is selected by comparing the total value of the weighting coefficients. Furthermore, the user can set a rendering engine to be preferentially selected when none of the determination conditions included in the selection rule table is satisfied, or when the total value of the weighting coefficients is the same for two or more rendering engines. It is good.

  When the rendering engine is selected, the control unit 11 next determines the display mode of the data of the web page using the rendering engine selected in the process of S3, and causes the display unit 14 to display the content of the web page (S4). . Thereby, the user can browse the content of the web page on the screen.

  According to the present embodiment described above, a web page can be displayed by a desired rendering engine by selecting one rendering engine from a plurality of rendering engines based on the content of the web page.

  Further, the web page display apparatus according to the present embodiment adds a new determination condition to the selection rule table used in the process of S3, or changes or deletes an existing determination condition. May be provided. Further, the rule editing unit may be able to change the weighting coefficient for each rendering engine described above. As a result, the user can arbitrarily edit the selection rule, and a more desirable rendering engine for the user can be selected.

  Furthermore, the web page display device according to the present embodiment may be a system in which processing is distributed to a client terminal that displays a web page and a server device that holds a selection rule and selects a rendering engine. . Thereby, in the client terminal which displays a web page, processing load can be reduced and a selection rule can also be shared by several client terminals.

It is a block diagram showing the schematic structure of the web page display apparatus which concerns on embodiment of this invention. It is a flowchart which shows an example of the process performed by the web page display apparatus which concerns on embodiment of this invention. It is a figure which shows an example of the selection rule table which the web page display apparatus which concerns on embodiment of this invention hold | maintains. It is a figure which shows an example of the data of the web page used as the object of the process by the web page display apparatus which concerns on embodiment of this invention. It is a figure which shows another example of the data of the web page used as the object of the process by the web page display apparatus which concerns on embodiment of this invention. It is a figure which shows another example of the selection rule table which the web page display apparatus which concerns on embodiment of this invention hold | maintains. It is a figure which shows an example of the parsing result of the web page obtained by the web page display apparatus which concerns on embodiment of this invention. It is a figure which shows another example of the syntax analysis result of the web page obtained by the web page display apparatus which concerns on embodiment of this invention. It is a figure which shows another example of the data of the web page used as the object of the process by the web page display apparatus which concerns on embodiment of this invention. It is a figure which shows another example of the syntax analysis result of the web page obtained by the web page display apparatus which concerns on embodiment of this invention.

Explanation of symbols

  11 control unit, 12 storage unit, 13 operation unit, 14 display unit, 15 communication unit.

Claims (5)

Web page acquisition means for acquiring web page data;
Rendering engine selection means for selecting a rendering engine to be used for displaying the web page from a plurality of rendering engines based on the content of the web page;
Web page display means for displaying the web page using the rendering engine selected by the rendering engine selection means;
A web page display device comprising: The web page display device according to claim 1,
The rendering engine selection unit selects a rendering engine based on a selection rule that associates a determination condition related to the content of a web page with at least one of a plurality of rendering engines. The web page display device according to claim 1,
The rendering engine selection unit is associated with the determination condition satisfied by the web page based on a selection rule that associates a determination condition regarding the content of the web page and a weighting factor for each of the selectable rendering engines. A web page display device that selects a rendering engine by comparing weighting factors for each of the selectable rendering engines. Using a computer
Retrieving web page data;
Selecting a rendering engine to be used to display the web page from a plurality of rendering engines based on the content of the web page;
Displaying the web page using the selected rendering engine;
The web page display method characterized by performing. Web page acquisition means for acquiring web page data;
Rendering engine selection means for selecting a rendering engine to be used for displaying the web page based on the content of the web page from a plurality of rendering engines, and using the rendering engine selected by the rendering engine selection means, the web Web page display means to display the page,
A program characterized by causing a computer to function.

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