JP2005208809A - Document analysis device and method, program for document analysis device, and printer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To further properly and rapidly perform a background processing of tables, lines and cells. <P>SOLUTION: In an XHTML document, when it is designated to provide a space between cells, the background of a cell is designated to be transparent as backgrounds of cells, lines and tables arranged in layers in order of cells, lines, and tables from the upper layer, and the background of the line that this cell belongs to is designated to other than transparent, the tables, lines and cells are laid out while setting the background of the cell to the background of the line this cell belongs to and setting the background of the line to out of the object of drawing (transparent), and drawn and printed. According to this, the space between cells can be regularly filled with the background of the table of the bottom layer by simple processing, and the inside of the frame of the transparent cell is filled with the background of the line one layer below. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a document analysis apparatus and method, a program for the document analysis apparatus, and a printing apparatus. More specifically, the present invention relates to a document analysis apparatus and method for analyzing and outputting a structured document described in a predetermined format, and document analysis. The present invention relates to a device program and a printing device.

  Conventionally, as this type of document analysis device, various devices that analyze, lay out, and output a table designated by a structured document described in a markup language such as HTML (Hyper Text Markup Language) have been proposed. (For example, refer to Patent Document 1).

In a structured document such as an HTML document, background characteristics can be specified for each table element, row element (including row group), column element (including column group), and cell element as table components. The backgrounds arranged are arranged in the order of cell elements, row elements, column elements, and table elements from the upper layer. For example, if the background property is specified for the cell element, row element, and table element, the cell located in the uppermost layer can be seen through the background of the next lower row when the background is transparent. When the background is also transparent, the background of the bottom layer can be seen through.
JP 2000-242641 A

  In the above-described document analysis apparatus, there may be a problem in outputting (displaying or printing) the background of the table. For example, a table with spaces between cells is specified, a background other than transparent (background color or background image) is specified as the background of a row element, and a transparent background is specified as the background of a cell element belonging to the row element. When specified, the cell background will show through the row background, but the space between adjacent cells will show the background of the row above the table background. This is contrary to the provision of CSS (Cascading Style Sheets) by World Wide Web Consortium (W3C) in which the space between cells is filled with the background of the table element.

  In addition, when such a document analysis apparatus is mounted on a printer and printing is performed, it is desired to construct an algorithm that can simplify the background process for solving the above-described problem and perform the printing process quickly.

  An object of the document analysis apparatus and method of the present invention is to solve such problems and to more appropriately process and output the background designated for each element constituting the table. Another object of the program for the document analysis apparatus of the present invention is to more appropriately process the background designated for each element constituting the table. Another object of the printing apparatus of the present invention is to more appropriately process and print the background specified for each element constituting the table.

  The document analysis apparatus and method of the present invention, the program for the document analysis apparatus, and the printing apparatus employ the following means in order to achieve at least a part of the above object.

The document analysis apparatus of the present invention
A document analysis device that analyzes and outputs a structured document described in a predetermined format,
When the structured document is designated, an analysis means for accepting and analyzing the designated structured document;
The parsed structured document includes an element for which a table is specified, and the element includes a cell element from the upper layer, a cell inclusion element that includes the cell element, and a table element that includes the cell inclusion element. When a background is formed and a space between cells is specified, the background specified in the table element is output in the space between the cells. A background setting means for setting the background of the element;
The present invention includes an output unit that sequentially lays out elements included in the analyzed structured document and draws and outputs the laid out elements with the set background.

  In the document analysis apparatus according to the present invention, when a structured document is specified, the specified structured document is received and analyzed, and the analyzed structured document includes an element for which a table is specified, and this element includes When the background layering is specified in the order of the cell element from the upper layer, the cell containing element that contains the cell element, and the table element that contains the cell containing element, and the space between the cells is specified, the space between the cells Set the background of the cell element, cell inclusion element, and table element so that the background specified for the table element is output, sequentially lay out the elements contained in the analyzed structured document, and set the laid out elements with the set background Draw and output. Therefore, the background of the table element can be output in the space between the cells by setting the background of the cell element, the cell inclusion element, and the table element. Here, the “cell inclusion element” includes a row element constituting a table row and a column element constituting a table column. The “background” includes a color and an image.

  In such a document analysis apparatus of the present invention, the background setting means is configured to specify a space between cells and when the background specified for the cell inclusion element is other than transparent, the background setting means It may be a means for setting the background of the cell inclusion element out of the drawing target. In this way, it is possible to output the background of the table element below the cell inclusion element in the space between the cells only by setting the background of the cell inclusion element outside the drawing target.

  In the document analysis apparatus of the present invention, the background setting means is designated to provide a space between cells, the background designated for the cell element is transparent, and the background setting means is designated for a cell inclusion element belonging to the cell element. When the background is not transparent, the background specified for the cell inclusion element to which the cell element belongs is set as the background of the cell element regardless of the designation of the background, and the background of the cell inclusion element is excluded from the drawing target. It can also be a means for setting. In this way, the cell element with transparency specified can output the background specified for the cell inclusion element below it, and the background of the table element below the cell inclusion element can be output to the space between cells. it can. In addition, since such background output is performed only by setting the background, the processing can be further speeded up.

  Furthermore, in the document analysis apparatus of the present invention, the predetermined format may be described in a markup language. In this aspect of the document analysis apparatus of the present invention, the markup language may be XHTML.

The printing apparatus of the present invention includes:
The gist of the present invention is to include the document analysis apparatus according to any one of the above aspects.

  In the printing apparatus of the present invention, the document analysis apparatus of the present invention according to any one of the above-described aspects, that is, a document analysis apparatus that basically analyzes and outputs a structured document described in a predetermined format. When the structured document is designated, an analysis means for receiving and analyzing the designated structured document, and an element for which a table is designated in the analyzed structured document are included, When an element is specified from the upper layer to a cell element, a cell containing element that includes the cell element, and a background that forms a layer in the order of a table element that includes the cell containing element, and a space between the cells is specified, The cell element, the cell inclusion element, background setting means for setting the background of the table element so that the background specified for the table element is output in the space between cells, and included in the analyzed structured document Layer elements sequentially And a document analysis device provided with an output means for drawing and outputting the laid-out elements with the set background, for example, cell elements and cell inclusion elements. By setting the background of the table element, it is possible to produce an effect that the background of the table element can be output in the space between cells.

The document analysis method of the present invention includes:
A document analysis method for analyzing and outputting a structured document described in a predetermined format,
(A) When the structured document is designated, the designated structured document is received and analyzed;
(B) The analyzed structured document includes an element for which a table is specified. The element includes a cell element from the upper layer, a cell inclusion element including the cell element, and a table element including the cell inclusion element. The cell elements and the cell inclusion elements are output so that the background specified in the table element is output in the space between the cells when the background forming the layers is specified and the space between the cells is specified. , Set the background of the table element,
(C) The gist is to sequentially lay out elements included in the analyzed structured document and to draw and output the laid out elements with the set background.

  According to the document analysis method of the present invention, when a structured document is designated, the designated structured document is received and analyzed, and the analyzed structured document includes an element for which a table is specified. When an element is specified from the upper layer to the cell element, the cell containing element that contains the cell element, and the table element that contains the cell containing element in the order of the background, and the space between the cells is specified, The background of the cell element, cell inclusion element, and table element is set so that the background specified for the table element is output in the space, and the elements included in the analyzed structured document are sequentially laid out and the layout element is set Since the background is drawn and output, the background of the table element can be output to the space between the cells by setting the background of the cell element, cell inclusion element, and table element. Here, the “cell inclusion element” includes a row element constituting a table row and a column element constituting a table column. The “background” includes a color and an image.

The program of the present invention
A program used in a document analysis device that analyzes and outputs a structured document described in a predetermined format,
A module that accepts and analyzes the designated structured document when the structured document is designated;
The parsed structured document includes an element for which a table is specified, and the element includes a cell element from the upper layer, a cell inclusion element that includes the cell element, and a table element that includes the cell inclusion element. When a background is formed and a space between cells is specified, the background specified in the table element is output in the space between the cells. A module to set the background of the element;
And a module for sequentially laying out elements included in the analyzed structured document and drawing and outputting the laid out elements with the set background.

  In the program of the present invention, by installing in the document analysis device, the specified structured document is received and analyzed when the structured document is specified, and the table structure is specified in the analyzed structured document. An element is included, and this element is specified from the top layer as a cell element, a cell containing element that contains the cell element, and a table element that contains the cell containing element in the order of the background and a space between the cells. Sometimes, the background of the cell element, cell inclusion element, and table element is set so that the background specified for the table element is output in the space between cells, and the elements contained in the analyzed structured document are sequentially laid out and laid out. Draw and output elements with a set background. Therefore, the background of the table element can be output in the space between the cells by setting the background of the cell element, the cell inclusion element, and the table element. Here, the “cell inclusion element” includes a row element constituting a table row and a column element constituting a table column. The “background” includes a color and an image.

  Next, the best mode for carrying out the present invention will be described using examples.

  FIG. 1 is a configuration diagram showing an outline of the configuration of a color inkjet printer 20 as an embodiment of the present invention. As shown in the figure, the color inkjet printer 20 of the embodiment is connected to a computer 10, a digital television 12, a digital camera 14, and the like, and an input interface 22 that controls input of a digital image (hereinafter referred to as an image), and an input interface 22 Analyzing an XHTML document described in XHTML (eXtensible Hyper Text Markup Language) as a markup language by assigning an output destination of data based on the format of the input image, and as an element tree structure Creates a DOM (Document Object Model) tree and reads a CSS document described by CSS (Cascading Style Sheets) to create a style object and create a memory The table, image, and text as the elements (objects) described in the XHTML document are laid out for each page for printing using the analysis unit 30 written in 50, and the DOM tree and style object created by the analysis unit 30. A layouter 38 that writes to the memory 50 as a page box, a rendering plug-in (hereinafter referred to as RPI) 40 that renders an image for printing as RBG data using a page box obtained by laying out by the layouter 38, A color conversion unit 42 that converts a screen for printing RGB (Red Green Blue) data into CMYK (Cyan Magenta Yellow Black) data, and binarizing the converted CMYK data by performing image processing such as error diffusion processing 2 Pricing unit 44 and 2 An image buffer 46 is provided for temporarily storing the data in order to output the digitized CMYK data to a print execution unit 48 having a print head (not shown) in units of bands.

  The signal processing unit 24 outputs the data to the image buffer 46 of the print execution unit 48 when the input signal is printable data that can be printed immediately, and the print screen storage area of the memory 50 when the input signal is RGB data. In the case of a file described in an XHTML document, it is output to the analysis unit 30.

  The analysis unit 30 generates a DOM tree by instructing the analysis of the XHTML document, an XML parser 34 that analyzes the XHTML document based on the instruction from the core 32, and each element of the generated DOM tree. It comprises a CSS plug-in (hereinafter referred to as CSSI) 36 for analyzing the CSS document requested by the initialization process.

  Next, the operation of the color ink jet printer 20 of the embodiment configured as described above, particularly the operation when printing an XHTML document will be described. FIG. 2 is a flowchart illustrating an example of the analysis layout instruction process executed by the analysis unit 30. This process is repeatedly executed every predetermined time (for example, every 8 msec). When the analysis layout instruction process is executed, first, it is determined whether or not a URL (Uniform Resource Locator) for specifying an XHTML document is specified (step S100). If a URL is specified, the URL is stored in the memory. 50 is stored in the URL storage buffer area set in the area 50 (step S110), and if no URL is designated, the process proceeds to the next process. The URL designation is output to the color inkjet printer 20 from the digital television 12 when the operator selects an item to be printed by the color inkjet printer 20 among the printable items displayed on the digital television 12. Or by simply selecting a URL from the computer 10 and making a print request to the color inkjet printer 20. In the URL designation from the computer 10, the XHTML document can be analyzed, laid out, color converted, binarized, etc. by the computer 10, but the computer 10 does not perform such processing at all, and only the URL is colored. In this case, the data is transmitted to the ink jet printer 20.

  Subsequently, it is determined whether or not the URL is stored in the URL storage buffer area of the memory 50 (step S120), and whether or not the XHTML document is currently being analyzed is determined (step S130). Whether or not the XHTML document is currently being analyzed is determined by determining whether or not the analysis unit 30 itself performs in parallel with the analysis layout instruction processing, for example, at the start of analysis and at the end of analysis. If so, this can be done by checking the flag. When the URL is stored and the XHTML document is not currently being analyzed, the memory 50 for storing the DOM tree storage area and the style object in the memory 50 for storing the DOM tree created by the analysis processing described later. It is determined whether or not there is a space in the style object storage area (step S140). If it is determined that there is a space, the first URL stored in the URL storage buffer area of the memory 50 is read and Analysis of the XHTML document specified by the URL is started (step S150), and when the URL is not stored or when the XHTML document is currently being analyzed even if the URL is stored, the current XHTML document is analyzed. DOM tree storage area and style object storage area even if it is not Proceed to the next processing when there is no free. The analysis of the XHTML document is performed based on the analysis process illustrated in FIG. In this analysis process, the XHTML document specified by the URL is analyzed to create a DOM tree, the CSS document described in the XHTML document is analyzed to create a style object, and an associated DOM tree storage area in the memory 50 And the style object storage area. At this time, a DOM tree ID is assigned as identification information to the DOM tree, and a style object ID is assigned to the style object as identification information. Details of the analysis processing will be described later.

  Next, it is determined whether or not the layout is being performed by the layouter 38 (step S160). If the layout is not being performed by the layouter 38, the page is laid out by a layout process to be described later. It is determined whether or not there is an empty box storage area of the memory 50 for storing boxes (step S170). If it is determined that there is an empty area, the DOM stored in the DOM tree storage area of the memory 50 is determined. The first DOM tree in the tree is designated using the DOM tree ID, a layout start instruction is output to the layouter 38 (step S180), the analysis layout instruction process is terminated, and the layout is performed by the layouter 38. Even if you are in the middle or not in the middle of the layout, It ends the analysis layout instruction process without outputting the layout start instruction when there is no free space at a box storage. Here, whether or not the layout is being performed by the layouter 38 can be determined based on whether or not a layout end signal is input from the layouter 38. The reception of the layout end signal will be described in detail when the processing of the layout 38 is described.

  Next, analysis processing executed by the analysis unit 30 will be described. The analysis process is performed based on the flowchart illustrated in FIG. 3 as described above. For ease of explanation, description will be made using the XHTML document illustrated in FIG. When a URL is specified by the analysis layout instruction process and an analysis start instruction is given, the XHTML document specified by the URL is read (step S200), and the read XHTML document is analyzed to create a DOM tree (step S210). . At this time, a DOM tree ID (for example, an ID created by adding a DOM to a URL) is assigned as identification information to the DOM tree to be created. Specifically, the XHTML document is read by the XML parser 34 when the core 32 designates a URL and requests an analysis to the XML parser 34. Specifically, the analysis of the XHTML document and the creation of the DOM tree are performed by the XML parser 34 analyzing the XHTML document from the beginning in order to create each element and register it in the DOM tree. The element is created for the core 32, and the element is registered by associating it with the DOM tree storage area of the memory 50. FIG. 5 shows a DOM tree created by analyzing the XHTML document illustrated in FIG.

  When the DOM tree is created in this way, the CSS document designated as the XHTML document is read (step S220), and the read CSS document is analyzed to create a style object (step S230). Here, the content of the CSS document is described directly in the XHTML document or linked to the outside of the XHTML document. In the example of FIG. 4, the content of the CSS document is directly described in the XHTML document. Showed the case. Specifically, the CSS document 36 is read by the request in the initialization process of each element of the DOM tree. When the content of the CSS document is directly described in the XHTML document, the portion corresponding to the CSS document in the XHTML document is passed and requested to the CSSI 36, and the CSS document is linked to the outside. Is performed by specifying the link destination in the link tag and requesting it to the CSSI 36. Specifically, the CSS document is analyzed and the style object is created by the CSSI 36 analyzing the CSS document in order from the beginning and storing each rule in the style object storage area of the memory 50.

  When the DOM tree and style object are created in this way, the created DOM tree and style object are associated with each other (step S240), and the URL to be analyzed is deleted from the URL storage buffer area (step S250). End the analysis process.

  Next, processing of the layouter 38 will be described. FIG. 6 is a flowchart showing an example of a layout drawing instruction process executed by the layouter 38 when the analysis unit 30 designates a DOM tree and gives a layout start instruction. When the layout drawing instruction process is executed, the layouter 38 first starts layout based on the designated DOM tree (step S300). The layout is executed by the layout process illustrated in FIG. For convenience of explanation, layout processing will be described here.

  In the layout process, the layouter 38 first searches each element of the DOM tree in order, and as a logical box in which style information (characteristics specified for the element and rules of the corresponding style object) is associated with each element. An element box is created (step S400). Subsequently, a page box corresponding to each page is created (step S402), and it is determined whether the target element box to be laid out under the page box is a table element (step S404). When it is determined that the element is other than the table element, a layout box is created based on the style information, and the contents (child elements) of the element are laid out until it cannot be laid out under the page box (step S422). For example, when the content of an element is an image, the image size is acquired to create an image box, and a line as a layout box is created and the image box is registered in the line. In the case of, it is performed by repeatedly creating a line, creating a text box just enough to enter the line, and registering it in the line. When the image box cannot be laid out due to the acquired image size or all of the text cannot be registered, page break is determined (step S424), and a page box corresponding to the next page is created and cannot be laid out. Register the image box and the rest of the text on the line.

  If it is determined in step S404 that the target element box is a table element, a process for analyzing the structure of the table is performed (step S406). In the analysis of the table configuration, processing necessary for layout, such as processing for setting the column width of cells to be laid out in rows according to the associated style information, is performed. In the embodiment, the setting of the cell column width is a fixed table set (table-layout characteristic is “fixed”) for setting the column width of the cell without depending on the cell contents (text or image size). There are two types of settings: automatic table composition (table-layout characteristic is “auto”) for setting the cell column width depending on the cell contents. When a fixed table set is specified, the column width of the cell is set by checking the characteristic (width characteristic) regarding the width of the cell belonging to the first row and the width characteristic is other than “auto”, that is, some value (absolute For cells for which the length and ratio of the table layout possible area (table width) are specified, the specified value is set as the column width of the corresponding cell, and the width characteristic is specified as “auto”. For the existing cells, the sum of the column widths set for the aforementioned cells whose width characteristics are specified other than “auto” (the so-called separation boundary model in which a space between cells is provided as a characteristic for setting boundaries between the cells and the cells) When specified, the width specified there is also added) and the width of the deviation from the width of the layout possible area is the remaining width with “auto” specified in the width characteristic. Allocation Le (e.g., sharing) is carried out by. When the automatic table layout is specified, the column width of the cells is basically set so that the cell contents are laid out in one line as much as possible within the width of the layoutable area. It is done by. Even when an automatic table layout is specified, the specified column width is set for a cell for which the column width is specified. The table layout is performed according to the column width thus set.

  Next, a background style (style information) as a background designated for each of the table, row, and cell is acquired (step S408). Here, in the embodiment, the background style can be specified for each of the table (table), the row (tr), and the cell (td, th), and the specified background is the cell, row, table from the upper layer. Arranged in this order. FIG. 8 shows an example of the layer structure of the background of the table, row, and cell. For example, if the background of a cell is transparent, the background of the next lower row can be seen through the cell frame. If the background of the row is also transparent, the background of the lowermost table is shown through the cell frame. Will be seen. Next, whether a so-called separation boundary model that specifies a space between cells or a so-called boundary crushing model that does not provide a space between cells is specified as a characteristic for setting a boundary in a cell (cell boundary characteristic) Is determined (step S410). Specifically, in this process, which of “separate” corresponding to the separation boundary model and “collapse” corresponding to the boundary crushing model is specified in the border-collapse characteristic that is the cell boundary characteristic. This is done by judging. In the separation boundary model, the distance (border-spacing characteristic) between the boundaries of adjacent cells can be designated numerically. When the boundary property between cells is determined to be the separation boundary model, there is a row in which the background style is not transparent among the rows included in the table, that is, a row with a non-transparent background (background color or background image other than transparency) is specified. (Step S412), and when it is determined that there is a line for which a non-transparent background is designated, the background of the corresponding line is set as a drawing target (transparent) regardless of the designation of the background ( Step S414). Then, a cell having a transparent background style, that is, a transparent background is designated among cells belonging to the corresponding row (cells (th) hierarchized as child elements of the corresponding row (tr) in the DOM tree in FIG. 5). If there is a cell for which a transparent background is designated, it is determined whether there is a cell for which the transparent background is designated. The background style is set (step S418). Specifically, whether or not the background style is transparent is determined by designating “transparent” in the background-color characteristic of the row (tr) or the cell (th, td) (when the background image is a background image characteristic) This is performed by determining whether or not “none” is designated). When the default value is transparent, it can be determined whether or not the background of the row or cell is specified as transparent depending on whether or not the background style itself is specified. In the XHTML document illustrated in FIG. 4, a background color other than transparent is specified for the second to fourth lines, and a transparent background color is specified for a part of the cells (td) belonging to these lines. I understand that. Further, the processing in step S414 for setting the row background to the drawing target is a process for always printing the space between cells as the background of the table below the row, and the cell background is used as the row background style. The process of step S418 is set to print so that the background of a row can be seen through the frame of the cell when the background of the cell is transparent. In this way, by changing the cell and row background settings, the space between cells can always be printed as a table background, and a transparent background is specified among cells belonging to rows for which a background other than transparent is specified. It is possible to print so that the background of the row can be seen through the cells. In step S410, it is determined that the model is not a separation boundary model, that is, it is determined as a boundary crushing model. In step S412, it is determined that there is no line whose background style is not transparent, that is, the background style of all lines is transparent. If it is determined in S416 that there is no cell whose background style is transparent among the cells belonging to the corresponding row, the background is set according to the background style acquired in Step S408 (Step S420).

  When the background of the table, row, and cell is set, the table cell is laid out for each row according to the analysis result in step S406 (step S422), and the layout box exceeds the page boundary of the page box in this layout. When no more registrations can be made, a page break is determined (step S424), a page box for the next page is created, and cell layout processing is resumed for the remaining rows.

  When the layout is completed for all the element boxes (step S426), the designated DOM tree is deleted from the DOM tree storage area of the memory 50 (step S428), and the layout end is output to the analysis unit 30. (Step S430), the layout process ends. Thereby, a storage area for a new DOM tree created by the analysis unit 30 is secured.

  Returning to the description of the layout drawing instruction process (FIG. 6). When the layout is started, it waits for the layout of the first page to be completed (step S310), specifies the page for which the layout has been completed, and outputs a drawing start instruction to the RPI 40 (step S320). Whether or not the layout for the page has been completed can be determined based on whether or not the page box corresponding to the next page has been created and whether or not the layout processing has been completed when there is only one page. The RPI 40 instructed to start drawing executes the drawing process illustrated in FIG. 9 and draws text and images as RGB data using the print image storage area of the memory 50 according to the page box (step S500), and the drawing ends. When this is done, a color conversion instruction is output to the color conversion unit 42 (step S510), and a drawing end is output to the layouter 38 (step S520). For image drawing, an image file is read and, depending on the file format, is developed and drawn. An example of the result of analyzing and printing the XHTML document of FIG. 4 is shown in FIGS. FIG. 10 shows a printing result when step S420 and step S418 are executed in sequence without executing steps S410 to S416 of the layout process of FIG. 7, and FIG. 11 shows all the steps of the layout process of FIG. Shows the print result when executed. In FIG. 10, a cell with a transparent background is filled with the background of one lower row, but the space between cells is also filled with the background of the row above the table (shaded area in the figure). On the other hand, in FIG. 11, it can be seen that a cell with a transparent background specified is filled with the background of one lower row, and all spaces between cells are filled with the background of the table.

  After outputting the drawing start instruction, it waits for the drawing of the page to end (step S330), and deletes the page box corresponding to the page (step S340). Thus, by deleting the page box corresponding to the page every time drawing of the page is completed, it is possible to avoid the state where unnecessary page boxes are stored in the box storage area. . When the page box is deleted in this way, it is determined whether or not there is a next page (step S350). If there is a next page, the process returns to step S310. That is, it is determined whether or not the layout for the next page has been completed. If the layout has not been completed, the process waits until the layout is completed, specifies the page for which the layout has been completed, and outputs a drawing start instruction to the RPI 40. is there. In this way, all the pages are drawn, and when there is no next page, the layout drawing instruction process is terminated.

  According to the color ink jet printer 20 of the embodiment described above, a designation for providing a space between cells (designation of a separation boundary model) is made, and among the lines included in the table, there is a line whose background is designated other than transparent. When doing so, the background of the corresponding row is set to be outside the drawing target (transparent), so that the space between cells can always be filled with the background specified in the table. In addition, when there is a cell whose background is specified as transparent among the cells belonging to a row whose background is specified other than transparent, the background of that cell is set to the background specified in the corresponding row. You can fill the frame with the background of the next lower row. Further, since such processing is performed by setting the background of the cell or row, the background processing can be speeded up and the printing processing can be speeded up.

  Here, the analysis unit 30 including the core 32, the XML parser 34, and the CSSPI 36 of the color inkjet printer 20 of the embodiment corresponds to the analysis unit, the layouter 38 corresponds to the background setting unit, the layouter 38, the RPI 40, and the color conversion unit. 42, the binarization unit 44, the image buffer 46, and the print execution unit 48 correspond to output means.

  In the color inkjet printer 20 according to the embodiment, the background processing is described in which cells, rows including cells, and tables are arranged in the order of the table. However, the layers are arranged in the order of cells, columns including the cells, and tables. The processing of the background to be arranged may be performed.

  In the color inkjet printer 20 of the embodiment, a document described in XHTML as a structured document is analyzed and printed. However, a document described in another markup language may be analyzed and printed. . In addition, a document described in a language other than the markup language may be analyzed and printed.

  In the color inkjet printer 20 of the embodiment, the computer 10, the digital television 12, the digital camera 14, and the like are cited as devices connected to the input interface 22, but any device may be connected.

  In the embodiment, a color ink jet printer that analyzes and prints an XHTML document has been described, but various printers such as a color laser printer, a monochrome ink jet printer, and a laser printer may be used. In addition to such a printer, the printer may be used for an ordinary computer that analyzes and outputs an XHTML document (for example, display output).

  The best mode for carrying out the present invention has been described with reference to the embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the gist of the present invention. Of course, it can be implemented in the form.

  The present invention is applicable to industries such as the printing equipment industry and the computer industry.

1 is a configuration diagram illustrating an outline of a configuration of a color inkjet printer 20 according to an embodiment. The flowchart which shows an example of an analysis layout instruction | indication process. The flowchart which shows an example of an analysis process. Explanatory drawing which shows an example of the XHTML document of a specific example. Explanatory drawing which shows an example of the DOM tree of a specific example. Explanatory drawing which shows an example of a layout drawing instruction | indication process. Explanatory drawing which shows an example of a layout process. Explanatory drawing which shows an example of the layer structure of each background of a table | surface, a line, and a cell. Explanatory drawing which shows an example of a drawing process. Explanatory drawing which shows an example of the printing result of a specific example. Explanatory drawing which shows an example of the printing result of a specific example.

Explanation of symbols

  10 computers, 12 digital televisions, 14 digital cameras, 20 color inkjet printers, 22 input interfaces, 24 signal processing units, 30 analysis units, 32 cores, 34 XML parsers, 36 CSSPIs, 38 layouters, 40 RPIs, 42 color conversion units, 44 binarization unit, 46 image buffer, 48 print execution unit, 50 memory.

Claims (10)

A document analysis device that analyzes and outputs a structured document described in a predetermined format,
When the structured document is designated, an analysis means for accepting and analyzing the designated structured document;
The parsed structured document includes an element for which a table is specified, and the element includes a cell element from the upper layer, a cell inclusion element that includes the cell element, and a table element that includes the cell inclusion element. When a background is formed and a space between cells is specified, the background specified in the table element is output in the space between the cells. A background setting means for setting the background of the element;
A document analysis apparatus comprising: output means for sequentially laying out elements included in the analyzed structured document and drawing and outputting the laid-out elements with the set background.   The background setting means is configured to draw a background of the cell inclusion element regardless of the designation of the background when a designation is made to provide a space between the cells and the background designated for the cell inclusion element is other than transparent. The document analysis apparatus according to claim 1, wherein the document analysis apparatus is a means for setting outside.   The background setting means, when it is specified that a space is provided between cells and the background specified for the cell element is transparent and the background specified for the cell inclusion element belonging to the cell element is other than transparent, 3. A means for setting the background specified for the cell inclusion element to which the cell element belongs to the background of the cell element regardless of the designation of the cell element, and setting the background of the cell inclusion element as a drawing object. Document analysis device described.   4. The document analysis apparatus according to claim 1, wherein the cell inclusion element is a row element constituting a table row and / or a column element constituting a table column.   The document analysis apparatus according to claim 1, wherein the background is a color or an image.   The document analysis apparatus according to claim 1, wherein the predetermined format is described in a markup language.   The document analysis apparatus according to claim 6, wherein the markup language is XHTML.   A printing apparatus comprising the document analysis apparatus according to claim 1. A document analysis method for analyzing and outputting a structured document described in a predetermined format,
(A) When the structured document is designated, the designated structured document is received and analyzed;
(B) The analyzed structured document includes an element for which a table is specified. The element includes a cell element from the upper layer, a cell inclusion element including the cell element, and a table element including the cell inclusion element. The cell elements and the cell inclusion elements are output so that the background specified in the table element is output in the space between the cells when the background forming the layers is specified and the space between the cells is specified. , Set the background of the table element,
(C) A document analysis method for sequentially laying out elements included in the analyzed structured document and drawing and outputting the laid out elements with the set background. A program used in a document analysis device that analyzes and outputs a structured document described in a predetermined format,
A module that accepts and analyzes the designated structured document when the structured document is designated;
The parsed structured document includes an element for which a table is specified, and the element includes a cell element from the upper layer, a cell inclusion element that includes the cell element, and a table element that includes the cell inclusion element. When a background is formed and a space between cells is specified, the background specified in the table element is output in the space between the cells. A module to set the background of the element;
A module for sequentially laying out elements included in the analyzed structured document and drawing and outputting the laid out elements with the set background.

Images