JP2004252655A - File conversion device developing table expressed by markup language - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a file conversion device easily processing a markup language. <P>SOLUTION: Tables 120, 130 are tables each expressed by an HTML. The upper table 120 originally includes the nested lower table 130 in a column 121. By the file conversion device, columns (2), (3), (4), (5) of the lower table 130 are respectively converted into columns II, IV, V, VIII of the upper table 120. Positions of the columns II, IV, V, VIII after the conversion respectively correspond to positions of the original columns (2), (3), (4), (5). Through such the conversion, a file of the HTML with the nested table is converted into the table without the nested table. By using the file after the conversion, the markup language can be easily processed. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a file conversion device that expands a table expressed in a markup language.
[0002]
[Prior art]
Conventionally, markup languages such as HTML (HyperText Markup Language) and XHTML (Extensible HTML) have been used. In HTML, the appearance of a sentence can be specified by inserting a tag into the sentence file. For example, it is possible to designate that a specific character uses a specific font, that an image is displayed at a predetermined position, or the like. Such HTML files are used for providing information on the WWW (World Wide Web) and the like.
[0003]
In markup languages, information can generally be structured in tabular form. For example, in HTML or the like, a tag such as <table> that specifies data in a table is combined with a tag such as <tr> that specifies data in a row or a tag such as <td> that specifies data in each column. By using, it is possible to provide information while structuring in a table format. Such a table may have a further nested lower table inside a column of the upper table.
[0004]
On the other hand, various types of markup language processing devices have been used. For example, in addition to a mobile terminal such as a mobile phone, in recent years, a tuner, a printing device, a set-top box, and the like of a television may be a markup language processing device. For example, information provision in a markup language may be performed on a set-top box or the like via digital broadcasting. In some cases, a printing apparatus that analyzes a markup language file and performs printing is used.
[0005]
[Patent Document 1]
Japanese Patent Publication No. 2002-351735
[0006]
[Problems to be solved by the invention]
However, processing the nested table structure was a cumbersome task.
For example, when printing a nested table described in a markup language, an upper table must be processed according to the processing result of a lower table in the nest. This is because it is necessary to determine the format of the entire column including the table according to the format of the lower table. Such processing is a complicated processing with a large processing amount.
[0007]
Also, the processing capability of the markup language may be low. In such a case, the use of nested tables may be prohibited, or processing of the table structure may require an extremely long processing time or may be impossible. For example, there are cases where a printing apparatus directly analyzes the structure of a file such as HTML and performs printing, or where a device having a low processing capability such as a portable terminal displays the contents of a file such as HTML.
[0008]
In order to reduce such a processing load, it is conceivable to prepare an HTML file including only a single-layer table without nesting. However, creating such a file, apart from an HTML file containing nested tables, is a heavy burden.
[0009]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and has as its object to provide a file conversion device that easily expands a nested table.
[0010]
[Means for Solving the Problems and Their Functions and Effects]
In order to solve at least a part of the problems described above, the present invention employs the following configuration.
The file conversion device of the present invention
A file conversion device for converting a first file expressed in a markup language into a second file expressed in a markup language,
The markup language can represent a table comprising one or more columns;
The first file has a nested upper table with a column containing the nested lower table;
A gist of the present invention is to provide a conversion unit that performs at least one of deletion and modification of at least one of the tag representing the table and the tag representing one or more columns.
[0011]
For example, in the case where the first markup language is XHTML or the like, the file conversion device of the present invention uses tags of <table> and </ table> that specify data of the entire table, and Each tag of <tr> and </ tr> that specifies data is deleted, and each of <td> and </ td>, and <th> and </ th> that specifies data in each column of the table is deleted. The tags may be changed to <div> and </ div>, respectively. Here, <table> and </ table> are tags representing a table, <tr> and </ tr> are tags representing one or more columns, and <td> and </ td> and <th > And </ th> are tags indicating one column. <Div> and </ div> are tags that specify a block of an information element in XHTML. Note that the conversion unit may delete the tag indicating the table and change the tag indicating the column of the table.
[0012]
In this way, the table can be converted into a format other than the table. Through such conversion, a nested table in a markup language can be converted into a non-nested table (hereinafter, referred to as a single-layer table). By using the data of the converted table, processing such as printing and display can be simplified.
[0013]
The table related to the above-described tag deletion / change may be the lowest table in the nest, or may be the highest table immediately adjacent to the lowest table. Further, it may be the highest table in the nest, or may be a table immediately below the highest table.
[0014]
The deletion or change of the tag may be performed, for example, sequentially on three or more nested tables. At this time, deletion may be performed sequentially from the highest table in the nest, may be performed from the lowest table, or may be performed from other tables other than the highest and lowest tables. Good.
[0015]
In the file conversion device according to the present invention, the attribute information associated with the data of the entire table related to the tag deletion or the like is associated with the data in each column of the table before or after the tag deletion or the like, or in parallel with the deletion. It may be converted to the one attached.
[0016]
Various markup languages can be applied as the markup language. For example, the above-described HTML and XHTML may be applied. Further, a markup language such as SGML (Standard Generalized Markup Language) or XML (Extensible Markup Language), which is designed mainly for the purpose of facilitating the processing, management, and communication of documents, may be applied. Note that the markup languages of the first and second files may be the same, similar, or different. For example, at least a part of the markup language convention of the second file may be a simplified version of the markup language convention of the first file.
[0017]
Further, the table of the markup language is not limited to the display. For example, it may be a table of a database that stores data structured for information retrieval.
[0018]
The file conversion device may be a device dedicated to file conversion or a device having other functions. As a case having other functions, a personal computer, a tuner of a television, a printing device, a set-top box, a mobile phone, and other portable information processing devices can be cited.
[0019]
It should be noted that there may be a case where a plurality of lower nested tables are included in the table column.
[0020]
In the file conversion device of the present invention,
For at least one of the columns to be deleted or changed, a position information input unit that inputs information of the display position after the conversion,
The conversion unit may include the information in the second file.
[0021]
By doing so, the position of each column after conversion can be specified. The position may be specified by the user directly changing the contents of the file using an editor or the like. For example, attribute data such as “style =“ left: x-coordinate; top: y-coordinate ”” may be added to a tag (<div> in the above-described case) that specifies a column after conversion. At this time, the file conversion device may visually indicate to the user a portion to which the attribute data is to be added by using a comment sentence in HTML or the like. Further, the file conversion device may provide a GUI (Graphical User Interface) in which an actual tabular display mode is displayed, instead of an interface using a simple editor.
[0022]
A second file conversion device according to the present invention comprises:
A file conversion device for converting a first file expressed in a markup language into a second file expressed in a markup language,
The markup language can represent a table including one or more columns and a predetermined information element for each of the columns, which is associated with the columns.
The first file has a nested upper table including a field related to an information element including a nested lower table,
The gist of the present invention is to include a conversion unit that expands the lower table and converts a column of the lower table into a column of the higher table.
[0023]
In this way, a nested table in the markup language can be converted into a single-layer table. In expanding the lower table, for example, tags <table> and </ table> representing the lower table may be deleted.
[0024]
Here, the information element may include an image (including a background image or a simple pattern), a so-called clickable map, a so-called hyperlink, in addition to the nested lower table and character data.
[0025]
In the second file conversion device of the present invention,
The table has one or more basic regions arranged in the vertical and horizontal directions,
In the column, the row width in the vertical direction and the column width in the horizontal direction may be defined by the number of arrangements of the basic regions, and may be associated with one or more predetermined basic regions.
[0026]
As such a case, for example, in a table such as HTML or XHTML, there is a mode in which the size of a column is defined by using a tag such as <td colspan = 2> with attribute data. The column to which the attribute data “colspan = 2” is attached is associated with two rows of basic regions in the horizontal direction. Similarly, the attribute data “rowspan = 2” is attribute data for associating two rows of basic regions in the vertical direction. In this way, a table in which columns of different sizes are mixed can be handled relatively easily.
[0027]
The table in which one or more basic regions are arranged in the vertical direction and the horizontal direction includes a table in which only one row or one column has basic regions arranged in at least one of the vertical direction and the horizontal direction.
[0028]
In the second file conversion device of the present invention,
The conversion unit may perform the conversion on a lower table that does not include another table.
[0029]
By doing so, the processing can be simplified. The file conversion device may perform only the conversion process on the lower column that does not include another table therein, or may also perform the conversion process on the lower column that includes another table therein.
[0030]
In the second file conversion device of the present invention,
A detection unit that detects whether a column width of the entire table is 1;
The conversion unit, when the column width is 1, performs at least one of deletion and modification of the tag representing the table or at least one of the tags representing one or more of the columns. It may be.
[0031]
In this way, the table can be converted into a format other than the table. Through such a conversion, a nested table in a markup language can be converted into a single-layer table.
[0032]
The table related to the above-described tag deletion / change may be the lowest table in the nest, or may be the table immediately above the lowest table. Further, it may be the highest table in the nest, or may be a table immediately below the highest table.
[0033]
In the second file conversion device of the present invention,
An attribute information creating unit that creates attribute information associated with each of the converted columns according to predetermined attribute information associated with the entire lower table may be provided.
[0034]
For example, in HTML or the like, the attribute information inside the <table> tag in the lower table may be transcribed inside the <td> tag in each converted column.
[0035]
By doing so, the correspondence between the columns of the lower table and the attribute information can be maintained in the converted file.
[0036]
In the second file conversion device of the present invention,
The attribute information creating unit may perform the creation except for the attribute information relating to the size of the table.
[0037]
By doing so, it is possible to reduce the redundancy of the converted data and prevent grammatical irregularities of the converted data. This is because the attribute information relating to the size of the table may be available only when associated with the entire table, or may conform to the grammar. For example, there is a case where the attribute information for specifying the horizontal size of the entire table is not useful even if stored in association with each column.
[0038]
In the second file conversion device of the present invention,
Prior to the conversion, a correction unit is provided that performs at least one of correction of the size of the column and addition of a new column so that any of the basic areas has the correspondence with any one of the columns. It may be something.
[0039]
As described above, the above-described correction is performed prior to the conversion processing, so that the conversion processing can be easily performed. This is because in the conversion processing for the file with the above correction, the relationship between each column and the basic area can be easily grasped.
[0040]
The file conversion device may, for example, associate a basic region that is not associated with any column with a newly created column or an existing column with the basic region. When associating the basic area with an existing column, the size of the column may be changed. In addition, the file conversion device may cancel the association of a plurality of columns associated with one basic area, except for one specific column.
[0041]
In addition, the correction | amendment which associates a basic area with an existing column may be performed by correcting the attribute data matched with the column. For example, the column width or the like of the column may be modified by increasing the attribute data colspan or the like. The correction for canceling the association may be such that the column width of the column or the like is reduced by the reduction of the attribute data colspan or the like.
[0042]
In the second file conversion device of the present invention,
In at least one of the vertical direction or the horizontal direction, the width number of the lower table, and a selection unit that selects one of the number of arrays for the column including the lower table in the upper table,
A changing unit that changes at least one of the width number and the array number based on the selected number.
[0043]
In this way, the basic area that defines the size of the column in the upper table and the basic area that defines the size of the entire lower table can be shared. As a result, by changing the number of rows in the lower table and the number of columns in the upper table, the position and size of each column in the lower table are arbitrarily adjusted in the columns of the upper table, The lower table can fit in the column.
[0044]
Here, it is desirable that the change in the number of arrays in the columns of the upper table changes the width number of the basic region of the entire upper table. In addition, the change in the number of arrays in the column of the upper table may not change the attribute data associated with the column, such as inside the <td> tag of the column. This is because, for example, the column may be converted into a group of a plurality of columns converted from the lower table column.
[0045]
Here, in the above-described processing, it is desirable that the larger of the width number and the array number is selected. In this case, the above-mentioned “change” may change the number of the non-selected side to the selected number itself, or may change the selected number to a number larger than the selected number by a predetermined difference. Alternatively, the number may be changed to a number smaller by a predetermined difference. Here, the predetermined difference may be a value specified in accordance with an information element other than the lower table included in the column of the upper table, as described later in detail. For example, when there is an information element that is divided into upper and lower parts by a lower table, the predetermined difference may be two. The above selection may be made in consideration of the predetermined difference. For example, the number of arrays may be selected from the number of arrays and the number of widths when the number of arrays is two or more larger than the number of widths.
[0046]
In the second file conversion device of the present invention,
The table data in the first file is:
A table identification tag indicating the start or end of the table,
A division tag for specifying a start or end position of one or more of the columns,
The information processing apparatus may further include a moving unit that moves at least one of the information elements enclosed by the table specifying tag and the section tag immediately before or immediately after the table specifying tag to the outside of the table.
[0047]
For example, in HTML or the like, the <table> tag or the like specifies data existing between a <table> or </ table> tag and a <tr> or </ tr> tag immediately after or immediately before the tag. The data may be moved outside the table data.
[0048]
By doing so, it is possible to easily perform the process of converting the columns of the lower table into the columns of the upper table. This is because the file after the data transfer by the transfer unit can be easily converted. In addition, the movement may be realized by moving a table specifying tag such as <table> or </ table>.
[0049]
In the second file conversion device of the present invention,
The column of the upper table includes other information elements that are not included in the lower table, and the conversion unit converts the other information element from the upper table that is different from the column converted from the lower table. May be converted into one or more columns of the table.
[0050]
In this way, even when the column of the upper table includes other information elements other than the lower table, the data corresponding to the column of the upper table before conversion is taken into consideration while considering the information element. 2 files.
[0051]
Here, the other information elements may be displayed on the upper, lower, left, right, and other peripheral portions of the lower table. In this case, it is desirable that the conversion process be performed in accordance with the positional relationship between the lower table and other information elements.
[0052]
It is desirable that the above-mentioned adaptation process is performed in consideration of a column generated by converting from other information elements. For example, when converting the upper and lower information elements of the lower table into two columns respectively, the number of columns in the column of the upper table in the vertical direction is calculated by adding 2 to the number of row widths of the lower table. It may be changed. This makes it possible to arbitrarily adjust the position and size of the lower table and the upper and lower information elements of the lower table in the column of the upper table.
[0053]
In the second file conversion device of the present invention,
The first file has two predetermined attribute tags of the file, and has an attribute tag for specifying a predetermined attribute of the information element surrounded by the attribute tag,
Regarding the information element surrounded by the attribute tag, an attribute tag adding unit that adds the attribute tag to at least one of the end and the starting end of the converted column so as to be surrounded by the predetermined attribute tag also in the converted column. It may be provided.
[0054]
Here, the predetermined attribute tag may be a so-called start tag and end tag in a markup language. For example, in HTML, <b> and </ b> for designating a display typeface.
[0055]
By doing so, a desired second file can be obtained even when the attribute tags surrounding the information element are separated into the data of the two columns after the conversion. For example, when the start tag and the end tag are included in the data of two different fields, the end tag is placed at the end of the data having the start tag, and the start tag is placed at the start of the data having the end tag. It is desirable to add. It should be noted that the case where both the addition of the start tag to the start end and the addition of the end tag to the end end may be included in one column.
[0056]
In the second file conversion device of the present invention,
The first file has attribute information indicating a predetermined attribute in association with a column of a higher table including the lower table,
The conversion unit may give an attribute corresponding to the attribute information to the converted column.
[0057]
Here, the predetermined attribute tag in the upper table may be attribute data “style =“ color: red ”” in a <td style = “color: red”> tag in a markup language. Such attribute data specifies a predetermined attribute of an information element such as a lower table included in a column specified by the <td> tag. It is desirable that the file conversion device attaches attribute data such as “style =“ color: red ”” to each column of the upper table converted from the information elements.
[0058]
In this way, the attributes of the information elements inside the columns of the upper table can be maintained in each converted column of the information elements.
[0059]
In the second file conversion device of the present invention,
The conversion unit may set the number of arrays in the converted column related to the other information element according to the number of arrays in the column of the upper table.
[0060]
This makes it possible to arbitrarily adjust the position and size of the converted column for other information elements inside the column of the upper table including the information element.
[0061]
Here, when the number of columns or rows in the relevant column of the upper table is changed in the above-described adaptation processing or the like, it is preferable that the changed number be used for the setting.
[0062]
In the second file conversion device of the present invention,
A basic region operating unit that adds a basic region associated with the converted column in the vertical or horizontal direction of the array,
The apparatus may further include a correspondence adjustment unit that adjusts the specified number of arrays in the converted column so that the converted column is associated with the basic region to be added.
[0063]
Here, the basic area operation unit and the corresponding adjustment unit when handling HTML or the like may change numerical values such as colspan. Also, the basic area operation unit may add tags such as <tr> and </ tr>.
[0064]
In this way, the position and size of the converted column can be arbitrarily adjusted within the column of the upper table.
[0065]
The correspondence adjustment unit and the basic area operation unit may be used for the above-described adaptation processing. For example, when the selection unit selects the width number of the lower table, the additional processing by the basic area operation unit may be used.
[0066]
In the second file conversion device of the present invention,
The basic area operation unit performs the addition for a table including a column related to the conversion in the past than the conversion,
According to the addition, a resetting unit may be provided for resetting the correspondence with the basic area in the column related to the past conversion.
[0067]
By doing so, it is possible to reset the association with the basic area in the column related to the past conversion according to the increase in the degree of freedom caused by the additional processing. The degree of freedom in associating the columns with the basic areas increases according to the additional processing.
[0068]
Each column related to the past conversion is associated with a basic area of a higher-level table through the above-described adaptation processing or the like. According to the file conversion device including the resetting unit and the like, the association with the basic region in the column related to the past conversion is reset according to the increase in the degree of freedom of the basic region that occurs when the additional processing is performed. can do.
[0069]
Here, the resetting may be performed on the data in the leftmost column of the lower table. For example, the number of basic regions associated with the converted column from the leftmost column may be reduced. This is because in a table or the like in which the leftmost column is only a heading column, it is sometimes desirable that the basic area corresponding to the leftmost column be relatively small.
[0070]
Note that the upper table column converted from the lower table column may be converted to a higher table column by a further conversion process. In this case, the resetting according to the additional processing of the higher-level table is the same. Although it is not the leftmost column in the directly lower table, the same applies to the column that was the leftmost column in the lower table.
[0071]
In the second file conversion device of the present invention,
At least one of a tag indicating data of the lower table and a tag indicating one or more columns of the table may be deleted.
[0072]
By doing so, the data of the lower table can be not the data representing the table. Here, the tag to be deleted may include at least a part of each tag of <table>, </ table>, <tr>, </ tr> in HTML or the like.
[0073]
In the second file conversion device of the present invention,
The conversion unit, for each column of the lower table,
The position of the lower table column in the lower table;
The position of the lower table in the columns of the upper table;
According to at least one of the positions of the columns of the upper table and the position occupied in the upper table,
The data in the column of the lower table may be moved to a predetermined part in the data of the upper table.
[0074]
By doing so, the column after conversion can be stored as corresponding to the column before conversion. Specifically, it can be stored according to the position of the column before conversion.
[0075]
When a predetermined display of the converted file is performed, a display corresponding to the entire lower table before the conversion may be included. For example, the display or the like corresponding to each column of the lower table before conversion may be combined as a whole to constitute a display corresponding to the entire lower table before conversion.
[0076]
The present invention can be configured as a file conversion method invention in addition to the configuration as the file conversion device described above. Further, the present invention can be realized in various forms such as a computer program for realizing the method, a recording medium on which the program is recorded, a data signal including the program and embodied in a carrier wave.
[0077]
When the present invention is configured as a computer program or a recording medium on which the program is recorded, the recording medium may be a code such as a flexible disk, a CD-ROM, a magneto-optical disk, an IC card, a ROM cartridge, a punch card, and a bar code. A variety of computer-readable media such as printed matter, internal storage devices (memory such as RAM and ROM) of the computer, and external storage devices can be used.
[0078]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in the following order based on examples.
A. overall structure:
A1. File converter:
A2. Markup language:
A3. Functional block configuration:
B. Simple conversion:
C. Table conversion processing:
C1. Overall flow:
C2. Convert to block:
D. Merge process:
D1. Preparation process:
D2. Integration processing:
D2a. Know which columns to create in the top table:
D2b. Increasing the number of rows in lower table columns:
D2c. Add a basic area:
D2d. Adjust attribute information:
D2e. Move data in each column:
D3. Review process:
E. FIG. Second embodiment:
[0079]
A. overall structure:
A1. File converter:
FIG. 1 is an explanatory diagram showing the file conversion device 100. The file conversion device 100 is configured by a personal computer that executes predetermined file conversion software. In addition, the file conversion device 100 can be configured as various devices that execute predetermined conversion software. For example, the file conversion device 100 may be a printer or a tuner of a television. Further, the file conversion device 100 may include predetermined conversion hardware.
[0080]
The file conversion apparatus 100 has a function of converting an HTML file into a predetermined LHTML (Light HTML) file. Here, LHTML is a markup language in which the type of tag and the structure of data are restricted so as to perform simple processing. For example, a nested table is recognized in HTML, whereas a nested table is not recognized in LHTML.
[0081]
The file conversion device 100 converts an HTML file having various contents into an LHTML file. The converted LHTML file is displayed on a device having a low processing capability, such as a mobile terminal such as a mobile phone, or used when requesting a printing device to perform printing.
[0082]
A2. Markup language:
FIG. 2 is an explanatory diagram illustrating an example of an HTML file. In FIG. 2, the data structure of the HTML file is shown in the upper part, and the table represented by the file is conceptually shown in the lower part. FIG. 2 shows a nested structure in which the lower table 130 is included in the upper table 120 as shown in the lower part.
[0083]
In FIG. 2, the HTML file is assigned the No. Is shown. In HTML, a table is represented by start / end tags of <table> and </ table>. In FIG. Data 1 to 13 are data of a table expressing one table 120. Here, the table 120 in FIG. 2 has columns A1, A2, and B. Here, the column B is constituted by a region indicated by a solid line. In addition, No. The attribute data “style =“ text-decoration: underline ”” (simplified by “underline” in the figure) attached to the <table> tag of No. 1 will be described later.
[0084]
In HTML, data in the horizontal direction (hereinafter, referred to as “row data”) is specified by being surrounded by tags of <tr> and </ tr>. In the table 120, the first row is composed of columns A1 and A2, and the second row is composed of columns B. No. in the upper data of FIG. Nos. 2 to 11 and Nos. Twelve data are data of two rows of the table 120. Each data is arranged inside the data of the table according to the order (from top to bottom).
[0085]
In HTML, data in each column of the table is specified by being surrounded by start tags and end tags of <td> and </ td>. The data of each column is arranged inside the data of each row specified by <tr> or the like according to the column order (from left to right). In the case of the data in the upper part of FIG. Nos. 3 to 9 and Nos. 10 and the data in column B is No. 12 is present. In FIG. 2, the name of the column is given as a display element of the content of the column.
[0086]
The data in column A1 includes No. 5 to 8 include the data of the lower nested table 130. Therefore, also in the lower diagram, the lower table 130 is included in the column A1 of the upper table 120. Like the data of the upper table 120, the data of the lower table 130 is configured by arranging the data of the columns m1 and m2 and the columns n1 and n2 for each row.
[0087]
The HTML table has one or more basic regions arranged in the vertical and horizontal directions. The upper table 120 in FIG. 2 shows a case in which basic areas a1, a2, b1, and b2 are arranged vertically and horizontally in a grid. In FIG. 2, the basic regions are arranged with two widths in the horizontal direction and two widths in the vertical direction. The basic areas a1, a2 and the basic areas b1, b2 arranged in the horizontal direction each constitute one row. The basic regions a1, b1 and the basic regions a2, b2 arranged in the vertical direction each constitute one column.
[0088]
Each column of the table is associated with one or more basic regions. In the case of FIG. 2, the columns A1 and A2 correspond to the basic regions a1 and a2, respectively. In column B, two basic areas b1 and b2 are associated.
[0089]
Here, the attribute data colspan will be described. In the data in column B of FIG. 2, the attribute data “colspan = 2” is included inside the <td> tag. This is data for designating that column B is associated with two columns of basic areas b1 and b2. In the data in columns A1 and A2, the attribute data of colspan is omitted. In such a case, the file conversion apparatus 100 treats “colspan = 1” as being omitted.
[0090]
Similarly to the attribute data colspan for the column width in the horizontal direction, the attribute data rowspan is used to specify the row width in the vertical direction. For example, by attaching attribute data “rowspan = 2” inside the <td> tag, the column of the <td> tag can be associated with two rows of basic areas in the vertical direction.
[0091]
In the HTML, the row width and the column width of each column of the table are defined in this manner, so that the row width and the column width of the entire table are defined.
[0092]
Note that, in HTML tags, uppercase and lowercase letters are not distinguished in principle. For example, <table> and <TABLE> are the same data. Therefore, in the drawings referred to in the following description, a specific portion of HTML data may be illustrated using capital letters.
[0093]
Note that LHTML is similar to HTML in that it can represent tables, but differs from HTML in that nested tables are not allowed. Except for the grammar described below, LHTML is basically described as a markup language similar to HTML.
[0094]
A3. Functional block configuration:
FIG. 1 also shows a functional block configuration realized by the file conversion device 100. The file conversion device 100 stores file conversion software. Each of the illustrated functional blocks is realized as software by executing the file conversion software by the file conversion apparatus 100. All or some of the illustrated functional blocks may be realized by hardware.
[0095]
The file input unit 101 inputs an HTML file. As described above, the HTML file includes nested table data.
[0096]
The user input unit 102 inputs various commands using input devices such as a keyboard 100c and a remote controller provided in the file conversion device 100.
[0097]
The table processing unit 106 converts a nested table into a non-nested table. The table processing unit 106 includes a structure specifying unit 107, a tag operation unit 108, and a data moving unit 109, and performs conversion using these components.
[0098]
The structure specifying unit 107 specifies a structure of a nested table included in the HTML file. For example, data of the entire table enclosed by start / end tags of <table> to </ table>, data of a row enclosed by <tr> to </ tr>, and <td> to </ td> Specify the data in one column enclosed by. In addition, the structure specifying unit 107 can specify the mutual relationship between the data specified by these start / end tags. For example, in the case of FIG. No. as a tag of a table included in the table 120 corresponding to the <table> tag of No. 1 5 <table> tags can be specified.
[0099]
The tag operation unit 108 performs tag deletion, addition, modification, and other tag operations. Here, the tag may include attribute data representing a predetermined attribute. For example, when it is desired to underline characters inside a table, a tag of <table style = “text-decoration: underline”> including attribute data “style =“ text-decoration: underline ”> is used. (Refer to Table 120 in FIG. 2; in FIG. 2, for convenience of illustration, the attribute data is simplified by “underline” and shown). The tag operation unit 108 also has a function of deleting, adding, and modifying attribute data.
[0100]
The data moving unit 109 has a function of moving data within a file. Specifically, as will be described later, it has a function of moving data in each column of the lower table 130 to a predetermined part in the data of the upper table 120.
[0101]
The grammar storage unit 105 stores HTML grammar. The above-described table processing unit 106 and the structure specifying unit 107 and the like included in the table processing unit 106 perform the above-described various processes while referring to the storage contents of the grammar storage unit 105.
[0102]
The basic processing unit 104 performs various processes on the file in which the nest has been expanded by the table processing unit 106, and finally completes the conversion to LHTML. For example, the basic processing unit 104 performs processing such as deleting or changing a tag or the like for each HTML tag or attribute data. For example, the attribute data bgcolor = “green” in HTML format for specifying the background color is changed to attribute data style = background-color: green in LHTML format. Also, tags such as <i> and </ i> that specify italic characters are changed to <span style = "font-style: italic;"> and </ span>. The processing rule storage unit 103 stores processing rules for the basic processing unit 104 to perform the above-described various processes.
[0103]
The file that has been converted into LHTML by the basic processing unit 104 is output by the output unit 110. Here, the output unit 110 may broadcast an LHTML file, send it to a printing device for a print request, output it to a screen or the like, or include the file conversion device 100. The data may be stored in a data storage device or the like. The file conversion device 100 may be a server that performs file conversion via a network, and the output unit 110 may return a file to a client that has requested conversion.
[0104]
Note that, in the embodiment, the basic processing unit 104 targets a file processed by the table processing unit 106 as a processing target for convenience of explanation, but the present invention is not limited to such a case. For example, all or a part of the above-described processing such as the tag change of the basic processing unit 104 may be performed before the table processing unit 106 performs the processing.
[0105]
B. Simple conversion:
FIG. 3 is a flowchart showing the simple conversion process. When converting the nested table, the table processing unit 106 selectively executes a simple conversion process illustrated in FIG. 3 and a table conversion process illustrated in FIG. 5 described below. The user can specify which process is to be performed. Hereinafter, a case where the simple conversion process is performed on the file of FIG. 2 will be described.
[0106]
In step Sa1, the file conversion device 100 inputs an HTML file. In step Sa2, the top table and its columns of the input file table are specified. In the case of FIG. 2, the table 120 and the columns A1, A2, and B of the table 120 are specified.
[0107]
FIG. 4 is an explanatory diagram showing each column specified in the simple conversion process. FIG. 4 shows the columns A1, A2, and B of the table 120 specified in step Sa2 of FIG. FIG. 4 shows a simple conversion process for the data of FIG. The upper part of FIG. 4 conceptually shows the state of the data subjected to the simple conversion process, and the lower part of FIG. 4 shows the specific contents of the data.
[0108]
In step Sa3, the file conversion device 100 deletes the tags <table>, </ table>, <tr>, </ tr> in the table 120, and replaces <tr> and </ tr> with <div> and Change to </ div>. <Div> and </ div> are tags that represent the display elements enclosed therein as one integrated block. In the lower part of FIG. 4, the deleted <table>, </ table>, <tr>, </ tr> tags are struck through, and the changed tags are indicated by capital letters. Was.
[0109]
In step Sa4, the file conversion device 100 transfers the attribute data inside the <table> tag 120t of the table 120 to the inside of the <div> tag in each column. In the case of FIG. 2, the attribute data “style =“ text-decoration: underline; ”” (simplified by “underline” in the figure) is included in the <table> tag 120t of the table 120. The attribute data is transcribed inside the <div> tag in each of the columns A1, A2, and B.
[0110]
However, transfer is not performed for attribute data or the like specifying the entire size of the table 120. For example, attribute data such as width and height inside a <table> tag in HTML. In the embodiment, for the convenience of explanation, step Sa4 is performed after step Sa3, but this order may be changed.
[0111]
In step Sa5, the file conversion device 100 inputs a designation by the user for the display position of each block. FIG. 2 shows a case where the coordinates of (0, 0), (4, 0), and (0, 3) are designated for columns A1, A2, and B, respectively. The file conversion device 100 adds each coordinate as attribute data inside each <div> tag.
[0112]
In FIG. 4, based on the designated display position, attribute data “style =“ left: 4; top = 0; ”” for specifying the display position of the block is included in the <div> tag in the column A2 (FIG. For simplicity of illustration, “pos = 4.0” is shown for simplicity. The same applies to the attribute data added to the other columns. In FIG. 4, for convenience of illustration, the display position is specified by attribute data of “style =“ left: X coordinate; top: y coordinate ””, but it may be specified in more detail. For example, it may include data indicating whether designation is to be made using absolute coordinates or relative coordinates, or data indicating a coordinate unit.
[0113]
The position may be specified by the user directly changing the contents of the file using an editor or the like. At this time, the file conversion device 100 may visually indicate to the user the part to which the attribute data is to be added by using a comment sentence in HTML or the like. Further, the file conversion apparatus 100 may provide a GUI (Graphical User Interface) in which an actual tabular display mode is displayed, instead of an interface using a mere editor.
[0114]
The simple conversion process in FIG. 3 may be repeatedly performed on one file. For example, in the state of FIG. 4, a simple conversion process may be further performed on the lower table 130.
[0115]
C. Table conversion processing:
C1. Overall flow:
FIG. 5 is a flowchart showing a table conversion process.
In step Sb1, the file conversion device 100 checks whether the file has a nested table. If there is a nested table, the processing from step Sb2 is executed. In step Sb2, the lowest table among the nested tables is specified. The lowermost table is a table that does not include another table therein.
[0116]
FIG. 6 is an explanatory diagram illustrating an example of a nested table. In FIG. 6, there is a table I having columns A1, A2, B1, B2. Column A1 of Table I contains Table II and Column B2 contains Table III. Table II has a column m1n1, a column m2, and a column n2, and the column m1n1 has a table IV. In the state of FIG. 6, Tables III and IV are the lowest tables.
[0117]
When the file is in the state of FIG. 6, the file conversion apparatus 100 specifies Table III or Table IV as the lowest table in the process of step Sb2 of FIG.
[0118]
In steps Sb3 and Sb4 to Sb6, the file conversion apparatus 100 integrates the lowest table specified in step Sb2 into the higher table. The contents of steps Sb4, Sb5, Sb6 will be described later.
[0119]
The processing of the file conversion apparatus 100 returns to the processing of step Sb1 after the integration processing in steps Sb3 to Sb6, and repeats the processing of step Sb2 and subsequent steps as long as the nested tables remain. For example, in the case of FIG. 6, after Table IV is integrated into Table II, Table II is integrated into column A1 of Table I.
[0120]
The conversion of the tables does not necessarily have to be performed sequentially from the lowest table. For example, even in the case of FIG. 6, Table II having Table IV therein may be integrated with Table I as it is. At this time, the column m1n1 may be integrated into the table I with the table IV inside.
[0121]
C2. Convert to block:
In step Sb3 of FIG. 5, the file conversion device 100 checks whether the column width of the upper and lower nested tables is 1 or not. If the column width of the lower table is 1, block conversion of the lower table (step Sb4) is executed. If the column width of the lower nested table is not 1 and the column width of the upper table is 1, block conversion of the upper table (step Sb5) is executed. If both the upper and lower nested tables have a column width of 2 or more, merge processing (step Sb6) is performed.
[0122]
FIG. 7 is an explanatory diagram showing a process of block conversion of a lower table. This shows the processing in step Sb4 of FIG. The upper part shows the state of the file before processing, and the lower part shows the state of the file after processing.
[0123]
Since the lower table 130 has a column width of 1, it is subjected to the processing of step Sb4 in FIG. As a result, the columns m and n of the lower table 130 are converted into two blocks specified by <div> and </ div>, respectively, as indicated by lowercase letters. This conversion can be performed by a process similar to the above-described simple conversion process (see FIGS. 3 and 4).
[0124]
FIG. 8 is an explanatory diagram illustrating a block conversion process of a higher-level table. This shows the processing in step Sb5 in FIG. The upper row shows the state before the conversion, and the lower row shows the state after the conversion. Since the number of columns in the upper-level table 120 is 1, the upper-level table 120 is subjected to the process of step Sb5 in FIG. As a result, the columns A and B of the upper table 120 are converted into two blocks as shown in the lower part. This conversion can be performed in the same manner as in FIG. Although FIG. 8 shows a case where the higher-level table 120 is included in the higher-level table 120x, the same applies to a case where the table 120 is the highest-level table.
[0125]
D. Merge process:
In step Sb6 of FIG. 5, the nested lower table 130 is merged with the upper table 120. In the merging process, a process of expanding the lower table 130 for each column and reconfiguring it as a column of the upper table 120 is performed. Hereinafter, such processing may be simply referred to as conversion from a lower column to a higher column.
[0126]
FIG. 9 is a flowchart showing the merge processing.
In step Sc1, preparations are made for the integration process in step Sc2. In step Sc2, an integration process, that is, a process of converting each lower column into a higher column is performed. In step Sc3, the past integration process is reviewed. Flow charts showing the details of each process are shown in FIGS. Hereinafter, the processing of steps Sc1, Sc2, Sc3 will be described with reference to FIGS. 10 to 13, 14 to 21, 22 to 23, respectively.
[0127]
D1. Preparation process:
FIG. 10 is a flowchart showing the preparation process. This is the process of step Sc1 in FIG.
In step Sd1 of FIG. 10, the file conversion apparatus 100 checks whether there is a sentence between the <table> tag and the <tr> tag immediately after the <table> tag in the lower table 130. If such a sentence exists, a predetermined moving process is performed in step Sd2.
[0128]
FIG. 11 is an explanatory diagram illustrating the movement processing. The upper row shows the state before the processing, and the lower row shows the state after the processing. In the data on the left side of the upper part of FIG. 11, the sentence 140 of “weather forecast” is inserted between the <table> tag 141 of the lower table 130 and the <tr> tag 142 immediately after the <table> tag 141. Exists. The sentence 140 is a sentence to be moved and is subjected to the movement process in step Sd2 in FIG. As shown in the conceptual diagram on the right side in the upper part of FIG. 11, such a sentence 140 is handled as a display element before the lower table 130.
[0129]
As shown in the lower part of FIG. 11, in the movement processing of step Sd2, the sentence 140 is moved out of the table 130. However, data that is originally required inside the <table> to </ table> tags does not move, such as data from the <caption> tag to the </ caption> tag. Like the sentence 140 to be moved in the lower left diagram of FIG. 11, the destination portion in the file is immediately before the <table> tag 141 of the table including the sentence 140. Note that such movement may be realized by moving the <table> tag 141. Further, a sentence between </ tr> and </ table> may be moved immediately after </ table>.
[0130]
Next, in step Sd3 of FIG. 10, the file conversion device 100 checks whether there are two columns sharing the basic area. If there are such two columns, a process of canceling sharing is executed in step Sd4. Here, the two columns sharing the basic region mean two columns associated with one basic region.
[0131]
FIG. 12 is an explanatory diagram showing the sharing cancellation processing of the basic area. The upper part shows the state before the processing, and the lower part shows the state after the processing. In FIG. 12, each basic area is each area a1, a2, b1, b2 divided by a broken line. The table in FIG. 12 has a column α composed of the basic regions a2 and b2 and a column β composed of the basic regions b1 and b2. In addition, the ranges of the basic regions associated with the columns α and β are indicated by hatching.
[0132]
The columns α and β in the upper part of FIG. 12 share the basic area a2. As shown in the lower part of FIG. 12, in step Sd4 of FIG. 10, sharing of the basic area is canceled by reducing colspan in the column β to 1. In FIG. 12, the case where the correction is performed for the column β is illustrated, but the rowspan in the column α may be the correction target, or the user may be able to select which is to be corrected.
[0133]
Next, in step Sd5 of FIG. 10, the file conversion apparatus 100 checks whether there is a basic area that is not associated with any of the columns (hereinafter, referred to as an unsupported basic area). If there is an unsupported basic area, a column is added in step Sd6.
[0134]
FIG. 13 is an explanatory diagram illustrating the column addition processing. The upper row shows the state before the processing, and the lower row shows the state after the processing. In the upper part of FIG. 13, there is no column associated with the basic area b3, so the basic area b3 is an unsupported basic area. As shown in the lower part of FIG. 13, in the column addition process of step Sd6 of FIG. 10, a process of creating a column B3 associated with the basic region b3 is performed. In FIG. 13, the <td> and </ td> tags newly created to add the column B3 are shown in uppercase. The column B3 may be a dummy column that does not include any display element, or may include some display element.
[0135]
Various aspects can be applied to the mode of the process described in FIG. 13 (step Sd6 in FIG. 10). For example, instead of the addition process in the column B, a correction process of the row span in the column A3 or the col span in the column B2 may be performed. By such a correction process, the unsupported basic area b3 can be made to correspond to the column A3 or the column B2.
[0136]
Further, various aspects can be applied to the mode of the processing described in FIGS. 12 and 13 (steps Sd3, Sd4, Sd5, and Sd6 in FIG. 10). For example, various processes for making a correction that brings all the basic regions closer to a state where each of the basic regions is associated with only one column can be applied.
[0137]
D2. Integration processing:
FIG. 14 is a flowchart showing the integration processing. This is the process of step Sc2 in FIG. By this process, a process of converting the column of the lower table 130 into the column of the upper table 120 is performed.
[0138]
D2a. Know which columns to create in the top table:
In step Se1 of FIG. 14, the file conversion device 100 grasps the column configuration after conversion.
FIG. 15 is an explanatory diagram illustrating an example of grasping the column configuration. In FIG. 15, the upper diagram shows the state of the lower table 130 and the like before the conversion, and the lower diagram shows the column configuration after the conversion.
[0139]
In the upper part of FIG. 15, a column 121 is one column of a nested upper table, and includes a lower table 130. The column 121 includes a display element at the preceding stage of the lower table 130, a lower table 130, and a display element at the subsequent stage of the lower table 130. The lower table 130 has three columns of columns M1, M2, and N.
[0140]
The file conversion device 100 recognizes that the lower table 130 should be configured as three columns 130c of the upper table, as shown in the lower part. In addition, the file conversion device recognizes that the columns 300 and 301 should be configured separately from the three columns 130c in accordance with the preceding display element and the subsequent display element. Here, the upper column 121 before the conversion is converted into the entirety of the columns 300 and 301 of the display elements of the preceding and subsequent stages and the three columns 130c. Note that the file conversion apparatus 100 adds </ td> in the column 300 corresponding to the display element in the preceding stage and <td> in the column 301 corresponding to the display element in the subsequent stage.
[0141]
D2b. Increase in the number of columns in the lower table:
In the processing of Steps Se2, Se3, Se4, and Se5 in FIG. 14, the file conversion apparatus 100 performs an adaptation process in which the column width of the column 121 and the column width of the basic region of the entire lower table 130 are aligned. Similarly, for the row width of the column 121, the matching process is performed to make the row width of the basic area of the lower table 130 uniform.
[0142]
In step Se2 of FIG. 14, when the column width of the column 121 is larger than the column width of the lower table 130, the file conversion apparatus 100 determines that the number of widths of the lower table needs to be increased. Execute the increase processing.
[0143]
FIG. 16 is an explanatory diagram illustrating an example of processing for increasing the number of widths of the lower table 130. This shows the processing in step Se3 in FIG. In FIG. 16, the upper part shows the state before the processing, and the lower part shows the state after the processing.
[0144]
The upper column 121 in FIG. 16 has colspan = 3, and is associated with three columns of basic regions indicated by broken lines in the drawing. On the other hand, the number of columns in the lower table 130 is two. In such a case, the column width of the lower table 130 is increased from 2 to 3 as shown by the dashed line in the lower row by the processing of step Se3 in FIG. The correction of the column width of the table 130 is performed by increasing colpsn of each column M2 and column N.
[0145]
Also, in step Se3 of FIG. 14, the file conversion apparatus 100 sets the attribute data “colspan = 3” in the columns 300 and 301 of the display elements in the preceding and subsequent stages, similarly to the increase in the column width of the lower table 130. I do. In this way, the number of columns in each column can be adapted to the number of columns in column 121.
[0146]
In the above-described example, colspan and the like in the leftmost column M1 of the lower table 130 are not changed, but the present invention is not limited to this case. When the column width of the lower table 130 is increased by two or more, for example, colspan of both columns M1 and M2 may be changed.
[0147]
Similarly to the above, when the line width of the upper-level column 121 is larger than the total line width of each column after conversion determined in step Se1 (step Se2), the file conversion apparatus 100 increases the line width of the converted column. Is performed (step Se3). FIG. 16 shows a processing example in the case where the row width (rowspan = 5) of the upper column 121 is larger than the total row width 1 + 2 + 1 = 4. Here, the line width correction target may be the first column 300, the second column 301, the column M1, or the like. Further, a plurality of columns may be set as correction targets.
[0148]
D2c. Add a basic area:
Next, the processing of steps Se4 and Se5 of FIG. 14 will be described. When it is determined that the column width of the column 121 is smaller than the column width of the lower table 130 (step Se4 in FIG. 14), the file conversion apparatus 100 executes a basic area addition process on the upper table 120 in step Sd5. I do.
[0149]
FIG. 17 is an explanatory diagram illustrating an example of processing for adding a basic area to an upper table. This shows the processing in step Se5 in FIG. In FIG. 17, the upper part shows the state before the processing, and the lower part shows the state after the processing.
[0150]
In the case of FIG. 17, the column width number 3 of the lower table is larger than the column width 2 of the upper column 121. Therefore, the file conversion device 100 increases the attribute data colspan in the upper column 121 to 3, as shown in the lower part of FIG. Note that the file conversion apparatus 100 increases the colspan in the display element columns 300 and 301 in the preceding and subsequent stages in addition to the increase in the colspan in the upper column 121.
[0151]
Similarly, when the line width of the upper column 121 is smaller than the aforementioned total line width (Step Se4 in FIG. 14), the file conversion apparatus 100 adds the basic area to the upper table 120 (Step Se5). ). FIG. 17 shows a case where the row width of the upper column 121 is made to match the total line width 1 + 2 + 1 = 4 by increasing the row span of the column 121 from 3 to 4.
[0152]
FIG. 18 is an explanatory diagram showing a portion related to a column around the column 121 in the basic region addition processing. The file conversion device 100 also changes colspan and the like in the columns surrounding the column 121 in the basic area addition processing in step Se5 of FIG. In FIG. 18, the upper stage shows the state before addition, and the lower stage shows the state after addition.
[0153]
In the state before the change, the upper column 121 has a column width of 2 and a row width of 3. Below the column 121, there are two columns 125 with a column width of 1 including the column α (dashed-dotted frame in the figure). Further, on the left side of the column 121, there are three columns 126 having a line width of 1 including the column β (broken line frame in the figure).
[0154]
Here, it is assumed that the column 121 is increased to the column width 3 and the row width 4 by the processing of step Se5 described above. At this time, as shown in the lower part of FIG. 18, the file conversion apparatus 100 increases the colspan in the column α and the rowspan in the column β to 2 in addition to the change of colspan in the column 121. Although FIG. 18 shows a case where the rightmost column α of the column 125 and the bottom column β of the column 126 are to be corrected, the present invention is not limited to such a case. The column to be corrected can be arbitrarily selected.
[0155]
The lower part of FIG. 18 also shows a specific configuration of the changed data. The range of data corresponding to the column 125 is a data range 125d. The data range corresponding to the column 126 is a data range 126d. Here, the data range 126d is a range excluding a hollow portion (data corresponding to the column 121). The file conversion device 100 specifies the data of the columns α and β from the data of the columns included in the data ranges 125d and 126d, respectively, and changes colspan and rowspan, respectively. When the row span in the column β is increased, due to grammatical restrictions, <tr> and </ tr> tags shown in capital letters in the conceptual diagram and the data configuration diagram of FIG. 18 are added.
[0156]
This concludes the description of steps Se1 to Se5 in FIG. Through these processes, the file conversion apparatus 100 can adjust the position and size of each column after conversion from the lower table 130 and the like in the upper column 121. The total row width and total column width of each column and the like after the conversion are matched with the row width and column width of the upper column 121.
[0157]
D2d. Adjust attribute information:
Next, the file conversion apparatus 100 adjusts the attribute data (Step Se6 in FIG. 14). As the attribute data to be adjusted, (i) attribute data composed of an end tag; (ii) attribute data inside an “able” tag; (iii) attribute data inside a <td> tag in a high-order column 121; No.
[0158]
FIG. 19 is an explanatory diagram illustrating addition of a start tag and an end tag. The upper part shows the state of the file before addition, and the lower part shows the state of the file after addition. Here, the start / end tags of <u> and </ u> are tags that specify that the surrounding display elements should be underlined. In the example in the upper part of FIG. 19, an underline is added to a range surrounded by <u> and </ u>, that is, the latter half of the display element of the former part and the former part of the display element of the latter part.
[0159]
In step Se6 of FIG. 14, the file conversion device 100 adds </ u> and <u> so that the underline is appropriately added to each converted column. In the column 300 including the preceding display element, an end tag </ u> corresponding to the start tag <u> is added to the end of the column. In a column 301 including a display element at a later stage, a start tag <u> corresponding to an end tag </ u> is added to the start end of the column. Although FIG. 19 illustrates the case of <u> and </ u> as an example, the file conversion apparatus 100 performs similar processing on various attributes specified in a form surrounded by a start tag and an end tag.
[0160]
Next, the transfer of the attribute data included in the <table> tag in the lower table 130 will be described. This is the same processing as the transfer of “style =“ text-decoration: underline; ”” in the above-described simple conversion processing (see FIG. 4; however, the attribute data is simplified by “underline” and shown). is there. In FIG. 19, the attribute data “style =“ text-decoration: underline; ”” of the <table> tag of the lower table 130 is converted into the attribute data “style =“ text = ”of the <td> tag of each converted column 130c. -Decoration: underline; "". Here, in FIG. 19, for convenience of illustration, the attribute data “style =“ text-decoration: underline; ”” is simplified and indicated by “underline”.
[0161]
Next, the transfer of the attribute data inside the <td> tag in the upper column 121 will be described. FIG. 15 shows an example of the transfer in this case. FIG. 15 shows a case where attribute data “style =“ text-decoration: underline; ”” of the <td> tag in the upper column 121 is transferred inside the <td> tag in each of the converted columns 300 and 301. Indicated. However, in the figure, for convenience of illustration, the attribute data “style =“ text-decoration: underline; ”” is simplified by “underline”. In the case of transferring the attribute data in the upper column 121, the display elements in the preceding and subsequent stages are transferred to the converted columns 300 and 301.
[0162]
In the attribute transfer processing described above, transfer is not performed on attribute data that specifies the entire size of the lower table 130 and the upper column 121, such as the width and height inside the <table> tag. In consideration of the size of the entire table 130 specified by the attribute data inside the <table> tag or the like, attribute data for specifying each size of each column after conversion may be added.
[0163]
D2e. Move data in each column:
If the colspan is adjusted only by the processing described above, the position and arrangement of each column after conversion are the same as those of each column of the lower table 130 before conversion due to the rules of the grammar of the markup language. It may be very different from the position / array, or a grammatical irregularity may occur. In step Se7 of FIG. 14, the file conversion apparatus 100 converts the data in each column into a predetermined format in the file according to the grammar rules of the markup language so as to realize a position / array corresponding to the position / array before conversion. Move to the site.
[0164]
FIG. 20 is a flowchart showing the data movement processing. The moving process is a process performed in step Se7 of FIG.
FIG. 21 is an explanatory diagram illustrating an example of the movement processing. In FIG. 21, the upper part shows the state of the file before moving, and the lower part shows the state of the file after moving.
[0165]
In the conceptual diagram in the upper part of FIG. 21, the lower table 130 to be integrated includes columns (2) to (5). The columns created in the upper table 120 according to these columns are the columns II, VI, V, and VIII in the table 120 in the lower conceptual diagram. The upper table 120 in the upper conceptual diagram has columns (1), (6), (7), (8) and a column 121 having a lower table 130. Columns (1), (6), (7), and (8) correspond to columns I, III, IV, and VII, respectively, in the lower conceptual diagram after conversion.
[0166]
In the following, the description will be made assuming that the display elements at the preceding and subsequent stages (see FIG. 15) in the upper column 121 are not considered, but columns 300 and 301 from these display elements are generated in the upper table 120. The same applies to the case.
[0167]
As shown in the data configuration diagram of the file before movement, the data in columns (1) to (8) are arranged in this order. The file conversion apparatus 100 needs to arrange the data in the columns (1) to (8) in the moved file in the order of the columns I to VIII in the lower part of FIG. Expressing using the symbols in the upper row, the order is (1) → (2) → (6) → (3) → (4) → (7) → (8) → (5).
[0168]
The data in each of the columns (2) to (5) of the lower table 130 is enclosed in <table> and </ table> adjacent to the file before being moved. However, in the moved file, they are not contiguous as a unit. For example, the data in column (6) (ie, III) exists between the data in column (2) (ie, II) and column (3) (ie, IV) of the lower table 130.
[0169]
However, the three data sets d2, d34, and d5 of columns (2), (3) and (4), and (5) in the file before the movement are included in the file after the movement for each data set. It is united.
[0170]
In step Sf1 of FIG. 20, the file conversion apparatus 100 specifies the data sets d2, d34, and d5 surrounded by <tr> and </ tr> in the lower table 130.
[0171]
Next, in step Sf2, the file conversion device 100 specifies, for each data set to be moved, a destination part of the data set. In FIG. 21, the destination parts of the data sets d2, d34, and d5 are the parts P2, P34, and P5 inside the data 151, 152, and 153 of the rows of the upper table 120, respectively.
[0172]
The file conversion apparatus 100 first specifies the data 151, 152, and 153 in the row of the higher-level table 120 for specifying the destination part. Based on the fact that the data 121d in the column 121 exists inside the data 151, the file conversion apparatus 100 can specify the three data 151, 152, 153 starting from the data 151 as the destination. The reason why there are three rows is that there are three data sets d2, d34 and d5 to be moved.
[0173]
Here, the data 151 includes columns (1) and (6) of the higher-level table 120. The data 152 includes the data in the column (7), and the data 153 includes the data in the column (8). These are the data in the conventional columns of the upper table 120 and are not the target of the movement processing.
[0174]
Next, the file conversion apparatus 100 specifies the destination parts p2, p34, and p5 in the data 151, 152, and 153 in the rows of the upper table 120 based on the position of the data 121d in the column 121 in the data 151. . In the example of FIG. 21, the upper column 121 is located in the basic region of the second column from the left in the row of the data 151 by counting the colspan value of <td>. The file conversion apparatus 100 specifies the parts p2, p34, and p5 corresponding to the positions of the basic areas in the second column from the left in the destination data 151, 152, and 153 as the destination parts.
[0175]
The specification of the destination site may be made by taking into account a) the position of the column 121 in the upper table 120; b) the position of each column in the lower table 130; Further, the position of the lower table 130 in the column 121 may be considered. If there are upper and lower display elements, it is desirable to take this into consideration.
[0176]
Through the processing in steps Sf1 and Sf2 described above, the file conversion apparatus 100 can specify the data sets d2, d34, and d5 to be moved and the destination parts p2, p34, and p5 of each data.
[0177]
In step Sf3, the file conversion device 100 deletes the <table> tag and the like in the lower table 130. The tags to be deleted at this time are the tags shown in the upper part of FIG. 21 using lowercase italic letters. For the lower table 130, the tags <table>, </ table>, <tr>, </ tr> are deleted. In the upper column 121, each tag of <td> and </ td> is deleted. Thereafter, in step Sf4, the file conversion apparatus 100 performs a process of moving each of the data sets d2, d34, and d5 specified in step Sf1 to the parts p2, p34, and p5 specified in step Sf2.
[0178]
In the above-described basic region addition process (step Se5 in FIG. 14 described in FIGS. 17 and 18), for convenience of description, the numerical value such as colspan of the <td> tag in the column 121 is changed (see FIG. 17). ), But this is not required. This is because the <td> tag in the column 121 is finally deleted in step Sf3 in FIG. In the basic region adding process, it is sufficient that the change is made substantially for the basic region associated with the column 121. For example, it suffices that processing such as attribute data change has been performed on columns other than the column 121 described with reference to FIG.
[0179]
D3. Review process:
FIG. 22 is a flowchart showing the process of reviewing the integration result. FIG. 23 is an explanatory diagram of an example of a process of reviewing the integration result. This process is a process in step Sc3 of FIG. As described above, in the table integration processing (step Sc2 in FIG. 9), the basic area of the upper table 120 can be changed by the basic area addition processing (step Se5 in FIG. 14). In the processing described below, the past integration processing is reviewed according to the increase in the degree of freedom of the basic area caused by the change.
[0180]
STEP 1 in FIG. 23 shows the initial state. In this example, the upper table 120 includes the lower table 130a in column A2A3 and the lower table 130 in column B2. Here, the dashed line in FIG.
[0181]
Next, in STEP2, it is assumed that the lower table 130a in the column A2A3 has been integrated into the upper table 120 by the above-described integration processing (step Sc2 in FIG. 9). The columns m1 and m2 of the lower table 130a have been converted to the columns m1 and m2 of the upper table 120. The columns m1 and m2 after the conversion are set to the column width 1 in the unit of the basic area in the table 120.
[0182]
Next, it is assumed that the integration process (Step Sc2 in FIG. 9) is performed again on the lower table 130b in STEP3. The columns x1 and x2 of the lower table 130b are converted to the columns x1 and x2 of the upper table 120.
[0183]
In the upper table 120 in STEP 3, the column width of the basic region is increased from 3 to 4 with the integration of the lower table 130b. Therefore, colspan in the column m1 is also increased from 1 to 2.
[0184]
In the process of FIG. 22 (step Sc3 of FIG. 9) subsequent to the integration process of step 3 (step Sc2 of FIG. 9), a process is performed according to the increase in the column width of the basic region of the upper table 120.
[0185]
First, in step Sg1 of FIG. 22, the file conversion device 100 specifies a column that has been generated by integration from the lower table and that has increased colspan in the current integration process. In the case of STEP 3 in FIG. 23, the column m1 is specified. Next, in step Sg2, it is checked whether or not the column m1 is the leftmost column in the lower table 130a before integration. If it is not the leftmost column, the process ends without performing any processing. If it is the leftmost column, the processes of steps Sg3 and Sg4 are executed.
[0186]
In order to explain the processing of steps Sg3 and Sg4, the state after performing these processings is shown in STEP4 of FIG. In step Sg3, the file conversion device 100 subtracts colspan in the leftmost column m1. In step Sg4, the file conversion apparatus 100 increases colspan in the column m2 on the right of the column m1.
[0187]
When the table 120 is integrated into a higher-level table, the column m1 and the like are converted into a higher-level table column than the table 120 by a further conversion process. Here, in the review processing relating to the basic area of the further upper table, it is assumed that the processing of steps Sg3 and Sg4 is also performed for the column m1 (the state of STEP 4) which is not the leftmost column in the direct lower table 120. Is also good. For example, in the determination in step Sg2, it may be detected that the column m1 (the state of STEP 1) in the table 130a lower than the table 120 is the leftmost column.
[0188]
The review process in FIG. 22 is not essential for the file conversion device 100. For example, the review process in FIG. 22 may be performed only when the amount of display elements in the leftmost column of the table is statistically smaller than in other columns.
[0189]
According to the file conversion device 100 in the present embodiment, a nested table in HTML can be converted into a format without nesting.
[0190]
The upper column 121 may include two or more lower tables. For example, in the conceptual diagram in the upper part of FIG. 15, at least one of the display elements in the former part and the latter part may include a different table from the lower part table 130. At this time, another lower table may be included in the converted column such as the display element in the previous stage. Further, the columns of a plurality of lower tables may be converted into the columns of the upper table 120 at once. For example, the above-described total line width and total line number may be calculated according to a plurality of lower tables.
[0191]
E. FIG. Second embodiment:
In the second embodiment, a modification example relating to the process of moving data in each column of the lower table (step Se7 in FIG. 14: described in detail in FIGS. 20 and 21) will be described. In the second embodiment, there is no need to perform data movement processing for each column of a lower table in step Se7 of FIG. 14 for each lower table. The data movement processing performs the movement processing for a plurality of lower tables in a lump.
[0192]
FIG. 24 is an explanatory diagram showing an upper table 120 including two lower tables 130P and 130V. 24 includes a lower table 130P in a column P1 and a lower table 130V in a column V1. The columns P1 and V1 have display elements at the front and rear, respectively, before and after the tables 130P and 130V. The file conversion device 100 displays four columns corresponding to each column of the table 130P, six columns corresponding to each column of the table 130V, and the first and second columns of the columns P1 and V1 as columns of the upper table 120. Create four columns according to the element.
[0193]
First, it is assumed that of the lower tables 130P and 130V, the table 130V is selected as a target of the integration processing (step Sb2 in FIG. 5). As a result of the integration processing (FIG. 14) according to the table 130V, as shown in FIG. 24, in the column V1, colspan is set to 2 and rowspan is set to 5 (step Se5 in FIG. 14; reference). At this time, the row span of the column P1 adjacent to the left side of the column V1 is also set to 5 (see the description of FIG. 18). Note that the division of the basic region in the upper table 120 is indicated by a broken line in FIG. Here, after setting the row span or the like, moving the data in each column or the like of the table 130V (step Se7 in FIG. 14) is not performed in the second embodiment. This processing is separately performed later.
[0194]
Next, it is assumed that the remaining lower table 130P is selected as a target of the integration processing (step Sb2 in FIG. 5). In the integration processing according to the table 130P, processing such as setting the row span of the display element column 301P of the latter stage to 2 is performed. However, as in the case of the table 130V, the data movement processing of each column of the table 130P (step Se7 in FIG. 14) is not performed at this time. This processing is separately performed later.
[0195]
As described above, the setting of colspan and the like in the upper columns P1 and V1 and the columns in the lower tables 130P and 130V can be completed. At this point, the data in each column of the lower tables 130P and 130V are collected together (see the upper part of FIG. 21). Thereafter, the file conversion device 100 performs a data transfer process. This processing is almost the same as the data movement processing (FIGS. 20 and 21) in the first embodiment. However, this embodiment differs from the first embodiment in that the processes related to a plurality of upper columns P1 and V1 are collectively performed.
[0196]
In the second embodiment, the data set serving as the transfer unit specified by the file conversion device 100 in step Sf1 of FIG. 20 is a data set that covers a plurality of upper columns P1 and V1. In the case of FIG. 24, since the row span of the columns P1 and V1 is 5, five data sets are specified. Specifically, a data set including data of the preceding display element column 300P (within column P1) and the preceding display element column 300V (within column V1), columns m1, m2 (within column P1), and columns s1, s2 A data set composed of data in (column V1), a data set composed of data in columns n1 and n2 (in column P1) and columns t1 and t2 (in column V1), and a column 301P (column P1) And a data set composed of data of columns u1 and u2 (within column V1) and a data set composed of data of a column 301V (within column V1) of a subsequent display element.
[0197]
The specification of the movement destination part in step Sf2 and the movement processing in step Sf4 can be performed in the same manner as in the first embodiment. Further, the deletion of the <table> tag and the like in step Sf3 can be performed in the same manner as in the first embodiment. However, this is different from the first embodiment in that tags of a plurality of tables 130P and 130V are collectively subjected to deletion or the like.
[0198]
Even in the case of the second embodiment, the process of reviewing the integration result (step Sc3 in FIG. 9 described in detail with reference to FIGS. 22 and 23) can be used.
[0199]
Although FIG. 24 shows a case where the upper columns P1 and V1 related to the movement process are adjacent to each other, the same applies to a case where they are not adjacent. FIG. 24 shows a case where the upper columns P1 and V1 related to the movement process are arranged in the horizontal direction. However, the columns P1 and V1 are arranged in the vertical direction and the columns P1 and V1 are arranged in the oblique direction. Also in this case, the collective movement processing of the data related to the columns P1 and V1 can be performed.
[0200]
Further, in the case of FIG. 24, the upper table 120 may include three or more lower tables, such as when at least one of the columns P2 and V2 includes a lower table. In such a case, data movement processing for all lower tables included in the upper table 120 may be performed collectively, or only movement processing for a predetermined part of lower tables may be performed collectively. You may. In the case where only the processing for a predetermined part of the lower tables is performed collectively, the setting of coslpan and the like of the lower tables other than the table related to the moving processing may be performed after the moving processing.
[0201]
As described above, the file conversion device according to the present invention has been described based on the embodiments. However, the embodiments of the present invention described above are intended to facilitate understanding of the present invention, and do not limit the present invention. . The present invention can be changed and improved without departing from the spirit and scope of the claims.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a file conversion device 100.
FIG. 2 is an explanatory diagram showing an example of an HTML file.
FIG. 3 is a flowchart showing a simple conversion process.
FIG. 4 is an explanatory diagram showing each column specified in the simple conversion process.
FIG. 5 is a flowchart illustrating a table conversion process.
FIG. 6 is an explanatory diagram showing an example of a nested table.
FIG. 7 is an explanatory diagram showing a block conversion process of a lower table.
FIG. 8 is an explanatory diagram showing a block conversion process of a higher order table.
FIG. 9 is a flowchart illustrating a merge process.
FIG. 10 is a flowchart showing a preparation process.
FIG. 11 is an explanatory diagram showing a movement process.
FIG. 12 is an explanatory diagram showing a sharing cancellation process of a basic area.
FIG. 13 is an explanatory diagram showing a column addition process.
FIG. 14 is a flowchart illustrating an integration process.
FIG. 15 is an explanatory diagram showing an example of grasping a column configuration.
FIG. 16 is an explanatory diagram showing an example of processing for increasing the number of widths of the lower table 130.
FIG. 17 is an explanatory diagram showing an example of processing for adding a basic area to the upper column 120;
FIG. 18 is an explanatory diagram showing a part related to a column around a column 121 in the basic area adding process.
FIG. 19 is an explanatory diagram showing addition of a start tag and an end tag.
FIG. 20 is a flowchart showing data movement processing.
FIG. 21 is an explanatory diagram illustrating a processing example of a moving process;
FIG. 22 is a flowchart showing a process of reviewing an integration result.
FIG. 23 is an explanatory diagram illustrating an example of a process of reviewing the integration result;
FIG. 24 is an explanatory diagram showing an upper table 120 including two lower tables 130P and 130V.
[Explanation of symbols]
100 ... file conversion device
100c ... keyboard
101: File input unit
102: User input unit
103: Processing rule storage unit
104: Basic processing unit
105: Grammar storage unit
106 ... Table processing unit
107: Structure specifying part
108: Tag operation unit
109: Data moving unit
110 ... output unit
120 ... Top table
120t ... <table> tag in Table 120
121... Column having lower table
125... Where the line of the basic area matches the column 121
126... Where the column of the basic area matches the column 121
130 ... lower table
130a, 130b ... lower table
130c: Each column of the upper table converted from the lower table 130
140 ... Sentence to be moved
141 <table> tag of the table including the sentence 140
142 <tr> tag adjacent to the <table> tag 141
151, 152, 153... Data of rows in the upper table 120
d2, d34, d5 ... Data set to be moved
p2, p34, p5: destination sites of the data sets d2, d34, d5
121d: Data in column 121d
300: Column after conversion of display element at the previous stage
301... Column after conversion of display element at the later stage

Claims (24)

A file conversion device for converting a first file expressed in a markup language into a second file expressed in a markup language,
The markup language can represent a table comprising one or more columns;
The first file has a nested upper table with a column containing the nested lower table;
A file conversion device including a conversion unit that performs at least one of deletion and change of at least one of a tag representing the table and one or more tags representing the column. The file conversion device according to claim 1, wherein
For at least one of the columns to be deleted or changed, a position information input unit that inputs information of the display position after the conversion,
The file conversion device, wherein the conversion unit includes the information in the second file. A file conversion device for converting a first file expressed in a markup language into a second file expressed in a markup language,
The markup language can represent a table including one or more columns and a predetermined information element for each of the columns, which is associated with the columns.
The first file has a nested upper table including a field related to an information element including a nested lower table,
A file conversion apparatus comprising: a conversion unit that expands the lower table and converts a column of the lower table into a column of the upper table. The file conversion device according to claim 3, wherein
The table has one or more basic regions arranged in the vertical and horizontal directions,
In the file conversion device, the column has a row width in a vertical direction and a column width in a horizontal direction defined by the number of arrangements of the basic areas, and is associated with one or more predetermined basic areas. The file conversion device according to claim 3, wherein
The file conversion device, wherein the conversion unit performs the conversion on a lower table that does not include another table. The file conversion device according to claim 3, wherein
A detection unit that detects whether a column width of the entire table is 1;
The conversion unit, when the column width is 1, for at least one of a tag representing the table or one or more tags representing the column, performing at least one of deleting and changing the tag. Conversion device. The file conversion device according to claim 3, wherein
A file conversion device comprising: an attribute information creation unit that creates attribute information associated with each of the converted columns in accordance with predetermined attribute information associated with the entire lower table. The file conversion device according to claim 7, wherein
The file conversion device, wherein the attribute information creating unit performs the creation except for the attribute information relating to the size of the table. The file conversion device according to claim 4, wherein
Prior to the conversion, a correction unit is provided that performs at least one of correction of the size of the column and addition of a new column so that any of the basic areas has the correspondence with any one of the columns. File conversion device. The file conversion device according to claim 4, wherein
In at least one of the vertical direction or the horizontal direction, the width number of the lower table, and a selection unit that selects one of the number of arrays for the column including the lower table in the upper table,
A changing unit that changes at least one of the number of widths and the number of arrays based on the selected number. The file conversion device according to claim 3, wherein
The table data in the first file is:
A table identification tag indicating the start or end of the table,
A division tag for specifying a start or end position of one or more of the columns,
A file conversion device comprising: a moving unit configured to move at least one of information elements enclosed by the table specifying tag and the section tag immediately before or immediately after the table specifying tag to the outside of the table. The file conversion device according to claim 3, wherein
The column of the upper table includes other information elements not included in the lower table,
The file conversion device, wherein the conversion unit converts the other information elements into one or more columns of the upper table different from the columns converted from the lower table. The file conversion device according to claim 12, wherein
The first file has two predetermined attribute tags of the file, and has an attribute tag for specifying a predetermined attribute of the information element surrounded by the attribute tag,
Regarding the information element surrounded by the attribute tag, an attribute tag adding unit that adds the attribute tag to at least one of the end and the starting end of the converted column so as to be surrounded by the predetermined attribute tag also in the converted column. File conversion device. The file conversion device according to claim 12, wherein
The first file has attribute information indicating a predetermined attribute in association with a column of a higher table including the lower table,
The file conversion device, wherein the conversion unit gives an attribute corresponding to the attribute information to the converted column. The file conversion device according to claim 12, wherein
The file conversion device, wherein the conversion unit sets the number of arrays in the converted column of the other information elements according to the number of arrays in the column of the upper table. The file conversion device according to claim 4, wherein
A basic region operating unit that adds a basic region associated with the converted column in the vertical or horizontal direction of the array,
A file conversion apparatus comprising: a correspondence adjustment unit that adjusts the specified number of arrays in the converted column so that the converted column is associated with the basic region to be added. The file conversion device according to claim 16,
The basic area operation unit performs the addition for a table including a column related to the conversion in the past than the conversion,
A file conversion device, comprising: a resetting unit that resets the correspondence with the basic area in a column related to the past conversion according to the addition. The file conversion device according to claim 3, wherein
A file conversion apparatus for deleting at least one of a tag representing data of the lower table and a tag representing one or more columns of the table. The file conversion device according to claim 3, wherein
The conversion unit, for each column of the lower table,
The position of the lower table column in the lower table;
The position of the lower table in the columns of the upper table;
According to at least one of the positions of the columns of the upper table and the position occupied in the upper table,
A file conversion device for moving data in a column of the lower table to a predetermined part in the data of the upper table. A file conversion method for converting a first file expressed in a markup language into a second file expressed in a markup language,
The markup language can represent a table comprising one or more columns;
The first file has a nested upper table with a column containing the nested lower table;
A file conversion method comprising a step of performing at least one of deletion and modification of at least one of a tag representing the table and one or more tags representing the column. A computer program for causing a computer to convert a first file expressed in a markup language into a second file expressed in a markup language,
The markup language can represent a table comprising one or more columns;
The first file has a nested upper table with a column containing the nested lower table;
A computer program for causing the computer to implement a function of performing at least one of deletion and change of at least one of a tag representing the table and one or more tags representing the column. A file conversion method for converting a first file expressed in a markup language into a second file expressed in a markup language,
The markup language can represent a table including one or more columns and a predetermined information element for each of the columns, which is associated with the columns.
The first file has a nested upper table including a field related to an information element including a nested lower table,
A file conversion method comprising a step of expanding the lower table and converting a column of the lower table into a column of the upper table. A computer program for causing a computer to convert a first file expressed in a markup language into a second file expressed in a markup language,
The markup language can represent a table including one or more columns and a predetermined information element for each of the columns, which is associated with the columns.
The first file has a nested upper table including a field related to an information element including a nested lower table,
A computer program for causing the computer to expand the lower table and convert a column of the lower table into a column of the upper table. A computer-readable recording medium recording the computer program according to claim 21.

Images