OpenOffice::OODoc::Text - The text processing submodule of OpenOffice::OODoc


NAME

OpenOffice::OODoc::Text - The text processing submodule of OpenOffice::OODoc


DESCRIPTION

This manual chapter describes the text-oriented methods of OpenOffice::OODoc, implemented by the OpenOffice::OODoc::Text class, and inherited by the OpenOffice::OODoc::Document class.

These methods are not essentially dedicated to string processing; they are more precisely focused on text containers. A text container is a document element which can (and must) be used in order to support a text and integrate it at the right place and according to the right presentation rules. The OpenDocument specification defines a lot of such containers, and the present API supports many of them, such as paragraphs, headings, tables (or spreadsheets), lists, sections, and draw pages. Some of these containers can host other containers: for example, a table contains rows, a row contains cells, a section can contain almost everything including other sections, etc.

These features are text-oriented, but can be used on documents of any class, such as spreadsheets or presentations as well as text documents. So, the 'Text' word doesn't mean that the features described in the present manual chapter are dedicated to OpenDocument Text (ODT) documents only. In the other hand, a few methods can't apply to any document class (ex: creating or retrieving draw pages makes sense with presentation and drawing documents only).

OODoc::Text should not be explicitly used in an ordinary application, because all its features are available through the OpenOffice::OODoc::Document class, in combination with other features. Practically, the present manual is provided to describe the text-oriented features of OpenOffice::OODoc::Document (knowing that these features are technically supported by the OpenOffice::OODoc::Text component of the API).

The OpenOffice::OODoc::Text class is a specialist derivative of OpenOffice::OODoc::XPath for XML elements which describe the text content of OOo/ODF documents. Here, ``text content'' means containers that can host text containers (i.e. tables, lists...) as well as flat text.

Knowing that the ``styles.xml'' member of an OpenDocument file can contain text (because some style definitions, such as page headers or footers, can contain text), the presently described features can be used against this member as well as the ``content.xml'' member.

This module should be used in combination with OpenOffice::OODoc::Styles, via the OpenOffice::OODoc::Document class, if the application has to handle detailed presentation parameters of text elements. This is because such parameters are held in styles elements and not in the text elements themselves, according to the principle of separation of content and presentation which is one of the foundations of the OpenDocument format.

Methods

Constructor : OpenOffice::OODoc::Text->new(<parameters>)

        Short Form: odfText(<parameters>)
        This constructor should not be explicitly used in ordinary applications
        knowing that all the features of the returned object are inherited by
        any Document object.
        See OpenOffice::OODoc::XPath->new for common arguments.
        Returns an OODoc::XPath OpenDocument connector with additional
        features mainly focused on text containers.
        This constructor is generally not explicitly called, knowing that
        it's automatically triggered each time a Document object is created.
        The XML member loaded by default is 'content.xml'. The most common
        creation method is like this:
            my $doc = odfText(file => 'my_file.odt');
        This constructor should generally not be called directly, because it's
        inherited by odfDocument().
        Other parameters can be supplied as options (see the properties list
        at the end of the chapter).
        Example:
            my %delim =
                (
                'text:h'                =>
                        {
                        begin   => '\sect{',
                        end     => '}'
                        },
                'text:list-item'        =>
                        {
                        begin   => '\item'
                        }
                'text:footnote-body' =>
                        {
                        begin   => '\footnote{',
                        end     => '}'
                        }
                );
            my $doc = odfText
                        (
                        file            => 'filename.odt',
                        paragraph_style => 'My Paragraphs',
                        heading_style   => 'My Headings',
                        delimiters      => { %delim }
                        );
        This technique gives the default styles to be used when creating new
        text elements. It also gives the particular delimiters (in this case
        LaTeX style markers) to be used at the beginning or end of some
        elements (in this case headings, list elements, footers) where the
        text is to be exported "as is". See the getText method of
        OODoc::Text for information about exporting text.

appendBodyElement(element [, options])

        Copies an existing element of any type and appends it to the end of
        the document body. No new element is created.

appendDrawPage([options])

        In a presentation or drawing document, appends a new page at the en
        of the document.
        Possible options are:
                name            => page name (unique)
                id              => page numeric ID (unique)
                style           => page style name
                master          => master page name
        Returns the new draw page element if successful, undef if not.

appendHeading([options])

        Creates a new heading of any level and appends it to the end of the
        document.
        Options are given as a hash [key => value]:
            'text'              => <heading text>
            'level'             => heading level, default is 1
            'style'             => heading style, default is 'Heading 1'
        Examples:
            $doc->appendHeading(text => 'Next section');
        adds the text 'Next section' as a level 1 heading.
            $doc->appendHeading
                (
                text    => 'Chapter Conclusion',
                level   => '2',
                style   => 'Heading_20_2'
                );
        adds a level 2 heading to the end of the text body. 'Heading_20_n'
        styles, where 'n' is the level number, are presently available by
        default in OpenOffice.org.
        You can give any XML attribute to the new heading except for style or
        heading level. In this case, the program must construct a hash
        containing pairs of key-values for the attributes you want to create
        and pass it using the 'attribute' option. Example:
            my %attr    = ( 'att1' => 'value1', 'att2' => 'value2' );
            $doc->appendHeading
                (
                text    => 'Attributes are important',
                level   => '1',
                style   => 'Chapter heading',
                attribute => %attr
                );
        If the 'text' option is empty, the heading is created with an empty
        content.
        Caution, creating headings with level attributes is not always
        sufficient to produce the needed result. For example, in order to
        generate headings with appropriate levels of numbering, each one
        must be attached to the right position in a hierarchy of lists,
        in combination with appendItemList(), insertItemList(), and
        appendListItem().
        Note: this method can only be used with a new header i.e. it adds
        while it creates. To add an already available element using
        getHeading() from the same document or from another document, use
        the appendElement() method instead which is inherited from
        OODoc::XPath.

appendItem(list [, text => text ,style => style ,[other_options]])

        See appendListItem().

appendItemList([type => list_type, [style => style [, options]]])

        Creates a new (empty) list and appends it to the end of the
        document.
        In OpenOffice.org 1 documents, an unordered list is the default,
        and if the 'type' option is given with the value 'ordered', then an
        ordered list is created. In Open Documents, the 'type' option is
        ignored because there are generic lists only (a list is ordered or
        "bulleted" according to a style, and not natively).
        The 'style' options controls the list's style (as opposed to each
        item's style). If absent, the list takes the default paragraph style
        (see appendParagraph).
        Like appendParagraph, this method actually creates a new list
        element. To copy an existing list in the same document or in
        another, use appendElement or replicateElement instead.

appendListItem(list [, text => text ,style => style ,[other_options]])

        Adds a new item to a list (ordered or unordered).
        The first argument is the existing list element (created using
        getOrderedList or getUnorderedList, for example). Options are the
        same as for appendParagraph.
        If the 'style' option is absent, the element is inserted according
        to the following rule:
        - if the new item is not the first one of the list, it takes the
        same style as the first item;
        - otherwise, it takes the default paragraph style of the document.
        The new item is created as a paragraph container by default. A
        'type' option may be provided in order to require another type.
        Possible values are 'header', 'paragraph' or the XML name of any
        OpenDocument-compliant text container.
        If the type is provided and set to undef, the new item is created
        as an empty element, so it could/should receive a content later.
        An empty item could be used as the attachment point of another
        list, in order to create a hierarchy of lists.

appendParagraph(<options>)

        Creates a new paragraph and appends it to the document.
        Options:
            'text'              => <paragraph text>
            'style'             => <paragraph style>
        An 'attribute' option is also available under the same conditions as
        for the appendHeading method (see above).
        If the 'text' option is empty, calling this method is the equivalent
        of adding a line feed.
        If the 'style' option is empty, the style from the 'paragraph_style'
        property of the OODoc::Text instance is used.
        By default, the new paragraph takes place at the end of the document.
        But it's possible to attach it as the last child of an existing
        text container (ex: a table cell). To do so, the container must be
        provided through an 'attachment' option. For example, to append a new
        paragraph in a table cell, one can write
                my $cell = $doc->getCell("Table1", "B12");
                $doc->appendParagraph
                        (
                        text            => "The cell, reloaded",
                        attachment      => $cell
                        );
        Note: this method can only be used with a new paragraph i.e. it adds
        while it creates. To add an already existing paragraph using
        getParagraph from the same document or from another document, use
        the appendElement, insertElement or replicateElement methods instead
        which are inherited from OODoc::XPath.
        Note: The repeated spaces are not properly processed, so any sequence
        of spaces (whatever its length) in the 'text' string is replaced by a
        single space in the target document. See setText() and extendText().

appendRow(table [, options])

        Appends a row to the end of the given table either by reference, by
        logical name or by sequential number. By default, the new row is
        simply an exact copy of the preceding row (in terms of content and
        presentation). You can pass an options hash which will give certain
        attributes to the created row, under the same conditions as for the
        appendElement method of OODoc::XPath. The returned value is the
        created row element.
        Example:
            open SRC, '<', 'data.txt';
            my $table = $doc->getTable("Table1");
            my ($h, $l) = $doc->getTableSize($table);
            for (my $i = 0 ; my $record = <SRC> ; $i++)
                {
                last unless $record;
                chomp $record;
                my @data = split ';', $record;
                my $row = $i < $h ?
                        $doc->getRow($table, $i) :
                        $doc->appendRow($table);
                for (my $j = 0 ; $j < $l ; $j++)
                        {
                        $doc->cellValue($row, $j, $data[$j]);
                        }
                }
        The above program reads a CSV format data file sequentially (one
        record per line, comma-separated fields). Each record is split and
        put into a row in table Table1. On reading each new record, the
        reference for the following row is loaded by getRow, until the total
        number of rows is reached (total obtained previously using
        getTableSize). If the table is already full, it is lengthened by a
        row using appendRow. The internal loop loads the read data into the
        row's cells (pre-existing or newly created). See the sections on
        getTable, getRow, getTableSize and cellValue for a better
        understanding of this example.
        However, if good performance is what you are after, massive
        repetition of this method is not recommended (e.g. for lengthening a
        table dynamically, row by row, whilst loading external data into
        it). Rather than running dozens or hundreds of successive
        appendRows, it would be better for the application to read the total
        number of records to be loaded (using, for example, select count if
        from a relational database or otherwise preloading the data into an
        ordinary Perl table) and create a table of appropriate size in
        advance using insertTable() or appendTable().

appendSection(name [, options])

        Creates a new section with the given name, and appends it by default
        to the end of the document body. If the "attachment" option is
        provided, with an existing element as its value, the new section is
        appended in the context of this element. For example, if the value
        of "attachment" is an existing section, the new section is appended
        as the last sub-section of the existing one.
        A section may be used either to hold a local content or to insert
        a subdocument which can be reached through an external link.
        In order to insert a subdocument link instead of an ordinary section,
        the application must provide a "link" option whose value is either a
        local file path or an URL.
        Example:
            $doc->appendSection
                (
                "Article",
                link => "http://mycompany.com/doc/article.odt";
                );
        Other possible options:
            'style'     allows the application to explicitly select a style
                        for the new section
            'protected' write-protects the section when the document is
                        edited; "true" or "false", default "false"
            'key'       in combination with "protected" => "true", write-
                        protects the section by password (the value of
                        "key" is not the real password, but an encrypted
                        password, so the end-user will never remove the
                        protection by simply typing the key as it is
                        written in the program); see lockSection(),
                        unlockSection() and sectionProtectionKey()

appendTable(name, rows, columns [, options])

        Creates a new table with the given name, number of rows and number
        of columns, and appends it by default to the end of the document
        body. The name must be unique within the document (the call is
        rejected if the name already exists). Returns the created table
        element if successful.
        Beware: Creating simple tables from scratch is very easy; however,
        for a realistic application, it's strongly recommended to replicate
        XML table templates previously created with an ODF-compatible editing
        software. A reasonably sophisticated table implies dozens of style
        definitions and would require a lot of perl code and a deep knowledge
        of the ODF specification, while it could be created in a few minutes
        through a WYSIWYG tool.
        'rows' and/or 'columns', if omitted, are replaced by the 'max_rows'
        and 'max_cols' properties of the document (see the properties below).
        By default, the table is set to fit the entire width between the
        left and right margins with equal sized columns, cells of type
        string and without borders or background colour.
        Possible options:
            'table-style'       => table style
            'cell-type'         => default cell type
            'cell-style'        => default cell style
            'text-style'        => default cell text style
        The first option is the name of a table style which defines
        certain global properties for the table (width, background colour,
        etc.). See the OpenOffice::OODoc::Styles manual for information about
        styles.
        The second option is the cells' default data type. The main types
        available are string, float, currency, date, percentage. Caution: to
        be properly treated as having a numeric format in OOo/ODF, a
        cell needs more than to be just marked 'numeric'. If the cell really
        needs to be treated properly as a number, you must also give it a
        cell style which itself refers to a number style. The cell-style
        parameter can do this. However, even though the OODoc::Styles module
        is there to otherwise help you create and add styles from a program,
        this type of exercise can become very labour-intensive. We therefore
        recommend using basic tables created in advance from document
        templates or style libraries created from an office application,
        rather than creating complex number tables from code.
        The text-style option selects the paragraph style applicable to the
        text displayed in each cell.
        Once the table is created, you can obviously modify each cell's type
        and style individually.
        Example:
            my $table = $doc->appendTable
                                (
                                "Rate", 22, 5,
                                'table-style' => 'Table1',
                                'text-style' => 'Text body'
                                );

appendTableRow(table)

        See appendRow.

autoSheetNormalizationOff()

        Deactivates the automatic sheet normalization.
        See autoSheetNormalizationOn().

autoSheetNormalizationOn('full')

autoSheetNormalizationOn(height, width)

        Activates the automatic normalization of any used table.
        This method instructs the API to automatically normalize anything
        table or sheet as soon as it's reached through getTable() or another
        table-related access method. The automatic normalization is not
        activated by default. It can be deactivated at any time using
        autoSheetNormalizationOff().
        See normalizeSheet() for details about the arguments and the
        effects.

bibliographyEntryContent(id [, key1 => value1, key2 => value2, ...])

        Gets, and optionally sets, the properties of a given (existing)
        bibliographic entry. The optionally updated properties are provides
        as a hash. The returned description is a hash.
        The first argument can be either the logical identifier of the entry
        (as it appears for the end-user) or a previously found bibliography
        entry element (see getBibliographyElements()).
        Example:
                my %desc = $doc->bibliographyEntryContent
                                        (
                                        "GEN99",
                                        author  => 'Genicorp',
                                        pages   => 62
                                        );
        This sequence updates the "Author" and "Pages" values of the "GEN99"
        entry, then returns all the content of the entry in %desc.
        Caution: Several bibliography entries can have the same identifier.
        This method processes one element at a time. In the example above,
        only the first occurrence of the "GEN99" entries is updated. So, if
        the user needs to ensure that all the entries with the same identifier
        have the same content, the appropriate code should be something like:
                my @entries = $doc->getBibliographyElements("^GEN99$");
                foreach my $entry (@entries)
                        {
                        $doc->bibliographyEntryContent
                                (
                                $entry,
                                author  => 'Genicorp',
                                pages   => 62
                                )
                        }
        Caution: This method allows the user to create any new property and
        to put any value in any property, without control. For information
        about the legal and/or recommended properties, see the OpenDocument
        specification and the OpenOffice.org bibliographic project
        (http://bibliographic.openoffice.org).

bookmarkElement(element, name [, offset])

        See setBookmark().

cellCurrency(table, row, column [, currency])

cellCurrency(cell [, currency])

        Get/set the currency unit of a cell.
        If a currency is provided, the cell value type is automatically
        switched to 'currency'.

cellFormula(table, row, column [, formula])

cellFormula(cell [, formula])

        Accessor which returns the formula (or function) contained in the
        given table cell. Returns undef if no formula is found in the cell.
        The cell address is the same as for getCellValue().
        If a formula is given as the last argument, it is put into the cell,
        overwriting any existing formula. No check of the syntax is carried
        out on the inserted formula. It is up to the application to insert a
        formula which conforms to OOo/ODF syntax. Example:
            $doc->cellFormula(1,3,2, "sum <C2:C5>");
        Note 1: inserting or replacing a formula does not directly modify
        the value or text of the cell. Proper interpretation of a formula
        does not happen until the fields are updated when the document is
        reloaded into the office software.
        Note 2: syntax and functionality of cell formulae differ greatly
        between office applications.

cellSpan(table, row, column [, hspan [, vspan]])

cellSpan(cell [, hspan [, vspan]])

        In a spreadsheet document, get/set the span of a table cell,
        knowing that this span can be one or more columns. The cell addressing
        is the same as with getCell().
        Example:
                $doc->cellSpan($table, "B4", 3);
        creates a 3-cell span from B4 in a spreadsheet.
        With only one span argument, this method works for horizontal, left to
        right expansion. With an additional argument, the expansion is bi-
        directional, covering one or more rows below the given cell. The
        horizontal span should be set to 1 in order to get a vertical span
        only.
        The text of the covered cells (if any) is concatenated to the original
        content of the expanded cell (as in OOo Writer or Calc).
        The user should make sure that the cell expansion will not invade the
        span of another, previously expanded cell. Assuming A is a the target
        of cellSpan(), B is an existing expanded cell, and C is a covered cell
        in the span of B, the following rules apply:
        If B is to be covered by the span of A, the span of B is automatically
        reset to 1, so C becomes visible, then B is covered by A. But if C is
        in the target range of cellSpan() while B is not, the method produces
        an inconsistency in the table (this inconsistency doesn't prevent
        OpenOffice.org and KSpread from loading the file but the span of A is
        just ignored).
        In list context, the method returns the horizontal span, then the
        vertical span. In scalar context, it returns the horizontal span only.
        Caution: when related to table cells, "span" has not the same
        meaning as when related to flat text (see getSpan() and setSpan()).

cellStyle(table, row, column [, stylename])

cellStyle(cell [, stylename])

        Get or set the style of a table cell.

cellValue(table, row, column [, value [, text]])

cellValue(cell [, value [, text]])

        Without the "value" argument: see getCellValue().
        With "value" (and, optionally, "text"): see updateCell().

cellValueType(table, row, column [, type])

cellValueType(cell [, type])

        Get/set the data type of a table cell.
        Possible value types are 'string', 'float', 'percentage', 'currency',
        'date', 'time', 'boolean'.
        Note: If an application must convert a 'string' cell to a numeric
        one and fill it with a numeric value, cellValueType() must be called
        *before* cellValue(). Ex:
                my $cell = $doc->getCell('Sheet1', 4, 8);
                $doc->cellValueType($cell, 'float');
                $doc->cellValue($cell, 12.34);

columnStyle(column_element [, style])

columnStyle(table, column [, style])

        Returns the style name of the given column or replaces it with a new
        one. A column can be indicated either directly by reference or by
        the pair [table, column number]. The table itself can be indicated
        either by a table element, its number or its logical name. If the
        'style' argument is given, it replaces the old column style.
        Giving a column a style is actually the only way to control the
        width of a column in a table.
        Example:
            $doc->columnStyle('Table1', 2, 'NewStyle');
        Caution: columns are numbered beginning at 0.

copyRowToHeader(table, rownum)

copyRowToHeader(row)

        This method appends a copy of a given table row to the header of the
        table. It may be called repeatedly, allowing multi-row header
        creation.
        A table header is a row, or a sequence of rows, that is displayed at
        the top of a table and repeated at the top of every page if the table
        is spanned across more than one page.
        The given row remains in place unchanged; it's used as a template for
        the new header row.
        
=head3  createParagraph([text [, style]])
        Creates a free paragraph for later use. Unlike appendParagraph() or
        insertParagraph(), this method doesn't attach the new paragraph to
        the document.
        
        Without arguments, the paragraph is created empty. The first argument,
        if any, provides the text content of the paragraph. The second one,
        if any, is regarded as the style name; the default style is
        "Standard".

createTextBox(options)

        Creates a new text box. Can apply to any document class, but mostly
        used in presentations or drawings (where text boxes are required to
        host text content).
        
        Text boxes are implemented through frame element, so you should see
        createFrame() in the OpenOffice::OODoc::XPath manual chapter in order
        to understand the meaning of every option.
        
        The following options are allowed (and generally required in order
        to make a text box really visible and properly rendered):
        
        page: the page where the box must be attached; in presentations or
        drawings, this option should be set with the page name;
        
        name: the (unique) name of the text box;
        
        size: the size of the box;
        
        position: the page-relative position;
        
        style: the graphic style of the box; like an image box, a text box
        often requires a style to be properly displayed;
        
        content: the content to be displayed in the box; if this option is
        set to a literal, the given content is inserted as a paragraph in
        the box; if the given value is the reference of an element, this
        element is attached as is in the box (so it's possible to insert
        any complex object, such as a table, an item list, etc).
        
        The method returns the reference of the new text box element.
        
        The example below creates an graphic style ("TB"), then a text box
        ("The Box") which uses the new style. See O::O::Styles for comments
        about createStyle(). The text box is attached in a presentation page
        identified by its name ("AnyPageName"). The size (width then height)
        and position (x, y) options are provided in centimeters (other units
        are allowed), each one in a single string.
                $doc->createStyle
                        (
                        "TB",
                        family          => "graphic",
                        parent          => "objectwithshadow",
                        properties      =>
                                {
                                'style:vertical-pos'    => 'from-top',
                                'style:horizontal-pos'  => 'from-left',
                                'style:vertical-rel'    => 'page',
                                'style:horizontal-rel'  => 'page'
                                }
                        );
                $doc->createTextBox
                        (
                        page            => "AnyPageName",
                        name            => "The Box",
                        size            => '12cm, 4cm',
                        position        => '8cm, 14cm',
                        style           => 'TB',
                        content         => "The text in the box"
                        );
                        
        In this example, the content option is set to a flat text, so
        it will be inserted as a standard paragraph. If we want to insert
        a paragraph with a non-default style, this option must be set to
        the reference of an existing paragraph (which may have been created
        using createParagraph() or copied from another place).

defaultOutputTerminator([chars])

        Get or set the default terminator character for text export.
        Example:
                $doc->defaultOutputTerminator("\n");
        After this instruction, a line-break will be appended at the end of
        every paragraph or header exported by getText(), selectTextContent()
        or other text extracting methods.
        To reverse this behaviour, the user can call this method with an
        empty string.
        Without argument, returns the currently selected terminator, if any.

deleteBookmark(name)

        Deletes the given bookmark (if defined).
        Works with position bookmarks only.

deleteColumn(table, col_num)

deleteColumn(col_elt)

        Deletes a given column in a given table.
        Caution: Before using this method, the application should ensure that
        the whole area from the beginning of the table to the last cell of the
        column to be deleted is "normalized". See normalizeSheet() for details
        about table normalization.

deleteHeading()

        See removeHeading().

deleteRow(table, row_num)

deleteRow(row_elt)

        Deletes a given row in a table.

drawPageId(page [, new_id])

        Returns the internal identifier of a presentation page, and changes
        it if a second argument is provided. The page id is a positive
        integer.
        The first argument must comply to the same rules as with getDrawPage.

drawPageName(page [, newname])

        Returns the visible name of a presentation or drawing page.
        The first argument can be a page order number, a page element or the
        present page name (see getDrawPage). The page is renamed if a
        second argument is provided. Example:
                $doc->drawPageName("oldname", "newname");

deleteTableColumn(table, col_num)

        See deleteColumn().

deleteTableRow(table, row_num)

        See deleteRow().

extendText(element, text [, style [, offset]])

        Inserts the text provided as the second argument into the element
        specified by the first argument. The second argument may be either a
        flat string or another existing text element.
        
        If the 'text' argument is a paragraph or heading element, the text
        content (and not the element itself) is inserted. But if 'text' is
        any other element (for example: a variable text field or a sequence
        of spaces), its inserted as is.
        This method is an improvement of the general extendText() method
        which is documented in the OpenOffice::OODoc::XPath manual page.
        If a third argument is provided and is neither 0 nor an empty string,
        it's regarded as the desired style of the new text, which is inserted
        as a "styled span" (see setSpan() for details about text "spans").
        By default, the text is inserted without any special style (i.e. with
        the same style as the containing element).
        The new text is, by default, appended to the existing content of the
        element. However, if a valid numeric value is provided as the fourth
        argument, the new text is inserted within the existing content, at the
        given offset. If the offset is negative, it's counted backwards from
        the end of the string. If it's set to 0, the insertion takes place at
        the beginning.
                $doc->createStyle
                        (
                        "BlueYellow",
                        family          => "text",
                        properties      =>
                            {
                            "fo:color"                  => odfColor("blue"),
                            "fo:background-color"       => odfColor("yellow")
                            }
                        );
                my $p = $doc->getParagraph(4);
                $doc->extendText($p, "New text", "BlueYellow", 5);
        In the example above, "New text" is inserted at the offset 5 within
        the 5th paragraph, in blue letters on a yellow background.
        Of course, the offset argument can't be passed unless the style one is
        present. However, in order to pass an offset without setting a style,
        the application has just to provide a 0 or an empty string as the
        third argument. Example:
                $doc->extendText($p, "New text", "", 5);
        Every string inserted through this method looks like it had always
        been a part of the original string when edited using OOo. However,
        each one remains stored in a separate space, like a "styled text
        span" (see setSpan()). So, given the following example:
                $doc->setText($para, "Old");
                $doc->extendText($para, "New");
        After this sequence, the displayable content of $para is "OldNew",
        but "OldNew" is not retrievable by selectElementsByContent(),
        setSpan(), or other text-searching methods, because "Old" and "New"
        are physically stored in separate containers (each one can have a
        distinct style). In addition, a subsequent call of extendText()
        with an offset on the same target will not properly work if the
        offset value is greater than the initial length (3 in the example).
        However, all the internal text span borders may be removed by an
        explicit call of flatten(). So, a third instruction could be
        appended to the example:
                $doc->flatten($para);
        After this last instruction, the whole content of $para is stored
        as a single string, and there is no internal separation between the
        original content and the extension(s). In the other hand, flatten()
        removes any previous formatting markup as well. For details about
        flatten(), see OpenOffice::OODoc::XPath.

getBibliographyElements([id])

        Returns the list of the bibliographic entry elements contained in the
        document.
        If an argument is provided, the returned list is restricted to the
        bibliographic entries matching it (this argument can be a regexp).
        Example:
                my @biblio = $doc->getBibliographyElements("^W3C");
        returns the bibliographic entries where the identifier begins with
        "W3C".

getBookmark(name)

        Returns the bookmark element (if defined) corresponding to the given
        bookmark name.
        If the bookmark covers a range of text (i.e. if it's not a position),
        the returned element is the "bookmark start" one.

getCell(table, row, column)

getCell(table, coord)

getCell(row, column)

        Returns the element which represents the given cell. Possible
        arguments are respectively: the table number or its reference in the
        document, row number and column number. Each table cell contained in
        the body of an OOo/ODF document can be referenced in this
        manner, as if it belonged to a single 3D table irrespective of the
        rest of the document.
        If the cell is defined in the spreadsheet but covered (because of a
        cell merge), the return value is undef. In other words, this method
        doesn't provide access to a covered cell.
        The first argument can be either the sequential number of the table
        (starting at 0), the logical name of the table, or a 'table' object
        (which can be retrieved in advance using getTable). If it's a number
        or a name, getTable() is automatically called by getCell() in order
        to convert it in a 'table' object. However, if the first argument is
        a row object (previously obtained via getRow() or getHeaderRow()),
        the second one is processed as the column number. Before using several
        cells in the same row, it's a good idea to get the row object and then
        to use it in every cell selection, in order to minimize the
        coordinates calculation.
        In tables including one or more header rows, the best way to get a
        header cell is to use a header row (previously obtained using
        getHeaderRow()) as the first argument. If the first argument is a
        table, getCell() looks in the table body only.
        Alternatively, the user can provide the cell coordinates in a single
        alphanumeric argument, beginning with one or two letters and ending
        with one or more decimal digits, according to the same logic as in a
        spreadsheet. So, for example
                $doc->getCell($table, 'B12');
        is equivalent to
                $doc->getCell($table, 11, 1);
        (Remember that, with the numeric coordinates, the row number is the
        first argument, while with the alphanumeric, spreadsheet-like ones,
        the column letter(s) come first.)
        Numbers can also be negative, where position -1 is the last. For
        example:
            $cell = $doc->getCell(-1, -1, -1);
        returns the very bottom right cell of the very last table in the
        document $doc.
        Returns a null value if the given cell does not exist or if it's
        covered by the span of another cell.
        Any cellXXX() method in this module uses the same cell addressing
        logic as getCell().
        CAUTION: Remember that OODoc works with the XML representation of
        the tables, and not with the tables themselves. The [x,y] direct
        addressing feature works as long as there is a continuous, one-to-one
        mapping between the logical view and the physical XML storage of the
        table. But, according to the OpenDocument specification, several
        contiguous objects (cells or rows) are allowed to be mapped to a
        single XML object when they have the same content and the same
        style, in order to save some storage space. This optimization is
        systematically used, for example, by OpenOffice.org Calc.
        Addressing cells in spreadsheets is considerably more complex
        than in text document tables. However, the same addressing scheme
        in allowed in the "Calc" documents than in the "Writer" ones,
        provided the targeted cells belong to a preprocessed workspace
        (beginning at the upper-left cell, and ending at a parametrizable
        position). It's possible to use normalizeSheet() or getTable() in
        order to make this workspace available.
        See normalizeSheet() for more explanations.
        Remember that the table addressing is zero-based and
        the row comes before the column in OpenOffice::OODoc, so, for
        example:
                $cell1 = $doc->getCell($table, 0, 0);
                $cell2 = $doc->getCell($table, 31, 25);
        returns respectively the A1 and Z32 cells.
        Note: in a spreadsheet, (0,0) are the coordinates of the "A1" cell,
        and, for example, (16, 25) are the coordinates of the "Z17" cell.

getCellParagraph(table, row, column)

getCellParagraph(cell)

        Returns the paragraph element contained in a given table cell, if
        the cell contains a paragraph. If the cell contains more than one
        paragraph, returns the first one.

getCellParagraphs(table, row, column)

getCellParagraphs(cell)

        Returns the list of the paragraph elements contained in a given
        table cell (knowing that a single cell can contain one or more
        paragraphs).

getCellValue(table, row, column)

getCellValue(cell)

        Returns the value of a table cell, if the cell is defined and
        uncovered. Caution, in order to get the cell element itself for
        further processing, use getCell() instead.
        The first form indicates a cell by its 3D coordinates, as with
        getCell().
        The second form (quicker) takes a cell element as its only argument
        (e.g. as returned by a previous getCell call).
        This method behaves in two different ways depending on the cell
        type. The displayable text of the cell is regarded as the cell value
        if the cell type is 'string'. If the cell type is one of the possible
        numeric types ('float', 'currency', 'date'), the returned value is the
        internal, numeric value.
        This difference in handling is designed to allow programs to use
        returned numeric values directly in calculations.
        See also cellValueType().
        Note: To get information about a cell other than its value or value
        type (numeric, etc.), the best way is first to get its element
        reference with getCell() and then use it with getAttribute.

getChapterContent(heading [, options])

        This method returns the list of the elements depending (from the
        end-user's point of view) on a given heading element, not including
        the heading element itself. The argument and the options are the
        same as with getHeading().
        Examples:
                my @list = $doc->getChapterContent(2, level => 3);
                foreach my $element (@list)
                        {
                        my $text = $doc->getText($element);
                        print "$text\n";
                        }
        The code above selects and prints all the text elements below the
        third level 3 heading of the document (not including the content of
        the header itself. The following example creates a new section whose
        content is made of a heading and the content of the depending chapter
        (the heading text is used as the section name):
        
                my $heading = $doc->getHeading(2, level => 3);
                my $heading_text = $doc->getFlatText($heading);
                my $section = $doc->appendSection($heading_text);
                my @content = $doc->getChapterBodyElements($heading);
                $doc->moveElementsToSection($section, $heading, @content);
        (See appendSection(), getHeading(), moveElementsToSection() in the
        present manual chapter, and getFlatText() in OpenOffice::OODoc::XPath)
                
        Caution, this method returns a list of elements and not an element.
        Chapters, unlike sections, are not defined in OpenDocument. So,
        getChapterContent() should be used as a possible workaround in order
        to isolate a logical set of content elements which is not packaged in
        a section.

getColumn(table, column)

        Returns the element reference of the given column in the given
        table. The first argument is either the table's sequential number in
        the document, logical name or element reference. The second argument
        is the column's number in the table. Synonym: getTableColumn.
        Caution: The application should ensure that the area including the
        needed column is "normalized". See normalizeSheet() for details about
        table normalization.

getDrawPage(pos/name)

        For presentation and drawing documents.
        Returns the element reference of the given page name or position.
        If the argument contains an integer, the page is selected according to
        its zero-based position. If the value is negative, the position is
        counted backwards from the end.
        If the argument is alphanumeric, it's regarded as a page name, and the
        page is selected accordingly.
        Caution: This method can't retrieve a page by name if the name
        contains numeric characters only; selectDrawPageByName() should be
        preferred to do so.

getEndnoteCitationList()

        Returns the list of all the endnote citations (i.e. references to
        footnotes included in the text) contained in the document.

getEndnoteList()

        Returns the list of all the endnote body elements contained in the
        document. Should be replaced by getNoteList() with the "class" option
        set to "endnote".

getFootnoteCitationList()

        Returns the list of all the footnote citations (i.e. references to
        footnotes included in the text) contained in the document.

getFootnoteList()

        Returns the list of all the footnote body elements contained in the
        document. Should be replaced by getNoteList() with the "class" option
        set to "footnote".

getHeading(n [, options])

        Returns the nth+1 heading element.
        If n is negative, headings are counted backwards from the last.
        getHeader(-1) returns the last heading element of the document.
        The only one possible option is "level". It allows the application
        to select the nth+1 heading element for a given level.
        Example:
                my $heading = $doc->getHeading(2, level => 3);
        selects the third level 3 heading in the whole document.
        See also getChapterContent().
        Caution: without the "level" option, this method counts sequentially
        through all headings along a single plane, irrespective of their
        level. E.g. if you have a level 1 heading then two level 2 headings
        then a level 1 heading, the call getHeading(3) returns the last
        level 1 heading.

getHeadingList([level => value])

        Returns a list of heading elements (i.e. elements called 'text:h' in
        the document body).
        If the "level" option is provided, the list is restricted to the
        headings having the given level.

getHeaderRow(table [, row_number])

        See getTableHeaderRow().

getHeadingText(n)

        Returns the text of the nth+1 heading element. Elements are counted
        in the same way as for getHeading().

getHeadingTextList()

        Returns a list of document heading texts.
        In a list context, the result is returned in the form of a list of
        character strings. In a scalar context, the result is a single
        string in which the headings are separated by a line-break character
        ("\n").
        Note: This list is "flat". It contains no information about the
        headings' hierarchy. To get a hierarchical contents list, you must
        start with the list of headings obtained using getHeadingList and
        check each element's level attribute ('text:level').

getItemElementList(list)

        Returns a list of elements which represent items of an ordered or
        unordered list. The argument is a "list" element (obtained
        previously e.g. using getItemList, getOrderedList or
        getUnorderedList). Each element in this list can be used with item
        handling methods.

getItemList(n)

        Returns the element which represents the nth+1 list in a document
        if found.
        WARNING: In the OpenOffice.org 1 documents, only "ordered lists" and
        "unordered lists" can be present. In the Open Document format, there
        are generic list objects only, and each one is made "ordered" or
        "unordered" by its style. So, this method will never return anything
        from an OOo 1 document.

getLevel(element)

        See getOutlineLevel().

getList(n)

        See getItemList().

getListItem(list, n)

        Returns the nth+1 item in a given list if found.
        The list (1st argument) may be given either by its order number in
        the document, or directly as an element reference.

getNoteCitationList()

        For OpenDocument only (doesn't work on old OpenOffice.org documents).
        Returns the list of all the note citation elements (whatever their
        note class, i.e. "endnote" or "footnote").

getNoteClass(note_element)

        Returns the class of the given note element. Possible values are
        presently "endnote" and "footnote". Returns undef unless the given
        element is a note.

getNoteElement(class => $note_class, citation => $note_citation)

        Returns the first note element matching the given class and citation,
        if any. Returns undef if the target note element doesn't exist.
        The "class" parameter is either "endnote" or "footnote".
        The "citation" parameter is the numeric or literal which refers to
        the note, as it's visible for the end user.
        Caution: The uniqueness of a note citation in a given note class is
        not a general rule. The citation is an identifier when it belongs to
        an ordered sequence (such as 1, 2, 3... or "i", "ii", "iii"...). But
        the author is allowed to use the same citation (ex: an asterisk) for
        more than one footnote or endnote. In such a situation, the method
        returns the first note matching the given citation and the given
        class. As a consequence, the note identifier, if known, is a better
        option (see the second form of getNoteElement()).

getNoteElement(id => $note_identifier)

        Returns the note element matching the given internal note identifier
        (which is a "text:id" attribute according to the ODF specification).
        This internal identifier is unique, whatever the note class, so the
        "class" parameter is not needed. However, "class" may be provided as
        an additional filter; if so, the method will return undef if the
        element matching the identifier doesn't match the class.

getNoteElementList()

        Returns the list of the endnote and footnote main elements.

getNoteList()

        Returns the list of the endnote and footnote body elements.

getOrderedList(n)

        Returns the element which represents the nth+1 ordered list in a
        document if found.
        WARNING: Ordered lists are possible in the OpenOffice.org 1 format
        only. Don't use it against OpenDocument.

getOutlineLevel(element)

        Returns the level number of a text element, or undef if the given
        element don't have a level number. Every heading element should have
        a level, while ordinary text body elements should not. Example:
                my $level = $doc->getOutlineLevel($element);
                if ($level)
                        {
                        print "There is a level $level heading\n";
                        }
                else
                        {
                        print "Non-heading element\n";
                        }

getParagraph(n)

        Returns the nth+1 paragraph in the document body, or undef if the
        given number is greater than or equal to the total number of
        paragraphs in the document.
        You can also pass a negative argument, in which case paragraphs are
        counted backwards from the end (-1 being the last paragraph).
        By paragraphs we mean 'text:p' elements, which excludes headers but
        includes non-empty table cells, contents of list items and
        footnotes.
        Returned value is an element and not the text of the paragraph. All
        read/write operations involving attributes and content can use this
        element.

getParagraphList()

        Returns a list of paragraph elements (i.e. 'text:p' elements in the
        document body).

getParagraphText(n)

        Returns the text of the nth+1 paragraph, counted using the same
        rules as for getParagraph.

getParagraphTextList([filter])

        Returns a list of texts contained in the paragraphs of a document
        ('text:p' elements).
        A filter can be passed as an optional argument (literal or regular
        expression). In this case, only paragraph texts whose content match
        the filter are returned.
        In a list context, the result is returned in the form of a list of
        character strings. In a scalar context, the result is a single
        string in which the paragraphs are separated by a line-feed
        character ("\n").

getRow(table, row_num)

        Returns the element reference which corresponds to a row in a table.
        The first argument is either the table's sequential number in the
        document, logical name or element reference. The second argument is
        the row number in the table. Synonym: getTableRow.
        This methods ignores the table header (if any). It can retrieve a
        row in the table body only. See getTableHeaderRow().

getRowCells(table, row)

getRowCells(row)

        Returns the list of the uncovered cell elements corresponding to a
        given table row. The row can be provided either by table ID and row
        number or by direct row object.

getSection(name/number)

        If the first argument is a number, returns the nth+1 section in a
        document (section numbers are zero-based; if the argument is negative,
        the sections are counted from the end).
        The second form allows you to select a section by its logical name (as
        it would appear to the end user when editing the section's
        properties). This name is obviously easier to use than a number.
        Moreover, this type of selection means the application will still
        work even if a section changes position within a document.
        The returned object is a "handle" that can be used for subsequent
        element creations or retrievals in the selected section.

getSpanList([context])

        Returns a list of elements, in the given context, which correspond
        to texts which "stand out" from the regular flat text, i.e. which have
        been given a style which makes them stand out from the rest of the
        paragraph containing them. The context may be a paragraph, a section,
        or any other text container. The context argument is optional; the
        default context is the whole document.
        For example, a word in italics or in font size 12 in a paragraph of
        mostly standard characters in font size 10 is a 'span' element and
        would therefore appear in a list returned by getSpanList.

getSpanTextList([filter])

        Gets a list of texts which "stand out" in the same way as
        getSpanList and returns it under the same conditions as
        getParagraphTextList or getHeadingTextList, with optional filter.

getStyle(path, position)

getStyle(element)

        Obsolete. See textStyle.

getTable(number_or_name [, 'normalize'])

getTable(number_or_name [, length, width])

        Returns the reference of a table, selected by name or number, in a
        scalar context. In an array context, returns the table size, like
        getTableSize().
        This method works with spreadsheets as well as with tables included
        in other documents.
        If the first argument is a number, returns the nth+1 table in a
        document (table numbers are zero-based; if the argument is negative,
        the tables are counted from the end). If it's a string, the table is
        selected by its its logical name (as it would appear to the end user
        when editing the table's properties). This name is obviously easier
        to use than a number. Moreover, this type of selection means the
        application will still work even if a table changes position within
        a document. But the retrieval by name works with two restrictions:
        - if a table name is made of digits only, or if if represents a
        numeric expression, it's automatically regarded as a table number;
        - getTable() can't retrieve a table by name if the name contains
        one or more "$", "{" or "}" characters; these characters are allowed
        in the table names in text documents (ODT), but not allowed
        in spreadsheets (ODS).
        The returned object is a "handle" that can be used for subsequent
        accesses to its components (rows, cells).
        The additional arguments, if any, instruct OODoc to normalize they
        target table in order to allow subsequent addressing of its content.
        If the "normalize" keyword is provided, the table will be fully
        normalized. If length and width arguments are provided instead,
        only an accordingly limited area, beginning at the "A1" position.
        Practically, getTable() uses normalizeSheet() in order to perform
        this job, so you should have a look at the normalizeSheet()
        documentation (in the same chapter) for explanations.
        Examples:
                my $sheet = $doc->getTable('Checklist');
        returns the reference of the sheet (or table) corresponding to the
        given name, without processing
                my $first_sheet = $doc->getTable(0);
                my $last_sheet = $doc->getTable(-1);
        returns the references of the first and the last tables according to
        the physical order of the document
                ($lines, $columns) = $doc->getTable('Friends', 'normalize');
        fully normalizes the table whose title is "Friends" and returns itself  
        size.

getTableColumn(table, column)

        See getColumn.

getTableHeaderRow(table [, row_num])

        Returns the element reference which corresponds to a row in a table
        header, or undef if the given table has no header row.
        The arguments are processes in the same way as with getRow(), but
        the second argument is optional; it's required only if the table
        has more than one header row (the 1st header row is returned by
        default).
        The returned elements can be used with subsequent cell access methods
        in order to process header cells (see getCell()).

getTableList()

        Returns a list of table elements in a document.

getTableRow(table, row)

        See getRow.

getTableRows(table)

        Returns the list of the rows contained in the given table.
        When the user needs to process every row in large tables, this method
        allows some performance improvements, because it's less costly than
        a lot of successive getRow() calls.

getTableSize(table)

        Returns the size of a table as a pair of values which represent the
        number of rows and columns. The table can be specified either by
        number, logical name or reference.
        Example:
            my ($rows, $columns) = $doc->getTableSize("Table1");

getTableText(n)

        Returns the content of a table, if found, whose number or reference
        is given as an argument. If not found, returns undef.
        The content of each cell is extracted according to the rules of
        getCellValue.
        In a list context, the returned value is a 2D table with each
        element containing the corresponding cell in the document.
        In a scalar context, the content is returned as a single string in
        CSV format. In this case, the rows are separated by a delimiter set
        by the instance variable 'line_separator' and the fields by the
        variable 'field_separator' in the OODoc::Text object. (These
        delimiters are by default "\n" and ";" respectively.)

getText(path, position)

getText(element)

        Exports the text contained in the given element according to the
        means appropriate to that type of element.
        If the 'use_delimiters' flag is set to 'on' (default), the content
        of each element (others than ordinary paragraphs, table cell,
        headers) is preceded and/or followed by a character string depending
        on the type of the element. This also depends on the settings given
        to the delimiter values 'begin' and 'end' by the 'delimiters' hash.
        In a default configuration where the application has not provided
        any specific delimiters, the following delimiters are used:
            - '<<' before and '>>' after sections of text highlighted within
            an element (e.g. words in bold or underlined within a paragraph
            of 'standard' font characters).
        footnote citations (in text body) are placed between square
        brackets.
        '{NOTE:' and '}' for the content of footnotes.
        (Footnotes are physically inserted into the text at the place
        where they are called, just after the link element indicating the
        footnote's number. Its display at the foot of the page or elsewhere
        is a trick of the graphical interface.)
        An application can change these delimiters, add more for other types
        of elements (e.g. paragraphs, headers, tables cells, etc.), or
        deactivate them using outputDelimitersOff. This depends on where the
        text is exported to e.g. display in editable "flat" format,
        conversion to non-OpenDocument XML or a markup language other than
        XML, generating code from text, etc..
        A default export (ex: "\n") terminator can be set for any element that
        is not listed in the 'delimiters' hash (see defaultOutputTerminator()
        above).
        If the element is an ordered or unordered list, the text produced is
        a concatenation of all the lines in the list, each separated by a
        line-break in addition to any delimiters. The default line break
        character is "\n", but it can be set to any other string (including
        an empty string) through the 'line_separator' property of the document
        object.
        If the element is a string table cell, getText behaves like
        getCellValue. If the cell contains more than one paragraph, the text
        produced is a concatenation of all the paragraph contents, each
        separated in the same way as list items.
        If the element is a table, getText behaves like getTableText.

getTextBoxElement(name/number)

        Retrieves a text box element by its unique name or by its order
        number in the document (or in the current context).
        
=head3  getTextContent()
        Returns the text of a document, as "flat" editable text.
        In a list context, the content is returned as a table with one text
        element (header or paragraph) per element.
        In a scalar context, the content is returned as a single character
        string with each text unit (header or paragraph) separated by a
        line-feed ("\n").
        The returned text contains no style or level information, so there
        is nothing to distinguish a header from a paragraph.
        Same as selectTextContent('.*').

getTextElementList()

        Returns the list of all the text elements, including headers,
        paragraphs and item lists.

getTopParagraph(n)

        Same as getParagraph but only considers top level paragraphs. The
        contents of lists, tables and footnotes are excluded.

getUnorderedList(n)

        Returns the element which represents the nth+1 unordered list in a
        document, if found.
        WARNING: Ordered lists are possible in the OpenOffice.org 1 format
        only. Don't use it against OpenDocument.

getUserFieldElement(name)

        Returns the element (if defined) representing a user-defined field,
        and corresponding to the given name. See also userFieldValue().

getVariableElement(name)

        Returns the user-defined variable identified by the given name.
        [Contribution by Andrew Layton]

hyperlinkURL(hyperlink [, url])

        Get/set the URL of an hyperlink element. The first argument may be
        a previously retrieved hyperlink element (see selectHyperlinkElement
        below), or the URL of an existing hyperlink. If a second argument is
        provided, it replaces the URL of the hyperlink element.
        With only one argument, just returns the existing URL of the link,
        or undef if the first argument doesn't match an existing hyperlink
        element.

inputTextConversion(text)

        Returns the UTF8 conversion of the given text, supposed to be in
        the local character set of the document (see the 'local_encoding'
        property).

insertColumn(table, col_num [, options])

        Inserts a new column in an existing table at a given position.
        The second argument must be the number of an existing column.
        Caution: this argument must be a column number, and not a column
        element.
        The new column is created as a copy of the column a the given
        position. It's inserted before or after the existing one, according
        to an optional "position" parameter (default 'before').
        Caution: before using insertColumn() against a spreadsheet, the
        application should ensure that the whole rectangular area from the top
        left cell ("A1") to the last used cell of the column at the target
        position is "normalized" (see normalizeSheet() for details about the
        table normalization).

insertDrawPage(page/pos [, options])

        In a presentation or drawing document, inserts a new page before
        or after an existing page.
        Possible options are the same as for appendDrawPage(), with an
        additional one:
                position        => 'before' or 'after' (default 'before')
        The new page is inserted before or after the reference page, according
        to the 'position' option.
        The first argument can be a draw page element reference (recommended)
        previously returned, for example, by a previous page retrieval or
        creation method call. Alternatively, it can be a page position or
        visible name, so it's regarded in the same way as in getDrawPage().
        Returns the new page element, or undef in case of failure.

insertHeading(path, position, options)

insertHeading(element, options)

        Same as appendHeading, but inserts the new heading before or after
        another element.
        Position is that of an existing element which can be another heading
        or a paragraph. Can be given by [path, position] or by element
        reference.
        Possible options are the same as for appendHeading, with the
        additional option 'position' which determines if the heading is
        inserted before or after the element at the given position. Possible
        values for this option are 'before' and 'after'. By default, the new
        element is inserted before the given element.

insertItemList(path, position [, options])

insertItemList(element [, options])

        Same as appendItemList, but a new list is inserted at the given
        position. The point of insertion can be given either by the pair
        [path, position] or by element reference. Options are the same as
        for insertParagraph.

insertParagraph(path, position [, options])

insertParagraph(element [, options])

        Same as appendParagraph, but a new paragraph is inserted at the
        given position.
        Position is that of an existing element which can be another
        paragraph or a header. Can be given by [path, position] or by
        element reference.
        Options are the same as for appendParagraph, with the additional
        option 'position' which determines whether the paragraph is inserted
        before or after the element at the given position. Possible values
        for this options are 'before' and 'after'. By default, the element
        is inserted before the given element.

insertRow(table, row [, options])

insertRow(row_element [, options])

        Inserts a new row into a table. In its first form, pass the table
        (reference, logical name or number) and the position number in the
        table. In its second form, pass the element reference of the
        existing row which is directly before or after the position where
        you want to make the insertion.
        By default, the new row is inserted at the position of the
        referenced row, which displaces it and the rest of the table down by
        one row position. However, you can insert it after by using the
        'position => after' option. By default, the new row is an exact copy
        of the referenced row, but you can assign particular attributes to
        it in the same manner as the insertElement method of OODoc::XPath.

insertSection(path, position, name [, options])

insertSection(element, name [, options])

        Creates a new section and inserts it immediately before or after
        an existing element (paragraph, header, table). The referenced element
        can be indicated as in insertParagraph.
        There is a "position" option which works in the same way as with
        insertParagraph() or insertRow().
        For other options, see appendSection(). For example, insertSection()
        may be used in order to insert a subdocument in a master document.

insertString(path, position, text, offset)

insertString(element, text, offset)

        Inserts a flat character string in a given element (whatever the type
        of element) at the given offset. If the offset is not defined, the
        text is appended to the end of the element (however, if the offset is
        provided and set to zero, the string is inserted at the beginning).

insertTable(path, position, name, rows, columns [, options])

insertTable(element, name, rows, columns [, options])

        Creates a new table and inserts it immediately before or after
        another element (paragraph, header, table). The referenced element
        can be indicated as in insertParagraph. The other arguments and
        options are the same as for appendTable with the additional option
        'position' as in insertParagraph.

insertTableColumn(table, col_num [, options])

        See insertColumn().

insertTableRow(table, row [, options])

insertTableRow(row_element [, options])

        See insertRow().

lockSection(section [, key])

        Installs a write protection on the given section.
        If a second argument is provided, it's stored as an encrypted key
        which is associated to the write protection. Caution, it's not the
        key as it should be typed by the OOo end-user.
        Such a write protection works only when the document is edited through
        an OpenOffice.org-compatible desktop software. It doesn't prevent the
        programs using OpenOffice::OODoc from deleting or updating the
        protected sections.

makeHeading([options])

        Creates a new heading element, or marks as a heading an existing
        element.
        Options:
                element         => an arbitrary existing element
        If this option is provided, the given element is converted in place
        to a heading, whatever its original type and position. No element
        is created.
        Without the 'element' option, a new heading element is created and
        returned for later use. This element is free; it's not automatically
        attached somewhere in the document. For direct heading creation and
        attachment, you should prefer appendHeading() or insertHeading().
                level           => a numeric, positive integer value
        Sets the hierarchical level of the heading (remember 1 is the top
        heading level). Caution: no default value.
                style           => the name of a convenient heading style
        While it's not mandatory, the 'style' option and a properly defined
        heading style are generally required in order to allow the office
        software to really process and display the element as a heading with
        the right hierarchical level. Of course, any previously existing
        hierarchical style is reusable here.
        The main purpose of this method is to allow quick heading hierarchy
        creation in a "flat" document. For exemple, an application can select
        a set of flat paragraphs matching a given condition and convert each
        one in place to a heading with a given level.
        
=head3  moveElementsToSection(section, list)
        Moves a list of elements from any place to a section.
        
        The section may be passed by name or by element reference; it must be
        an existing one (no new section is created).
        
        The list is a set of arbitrary elements (including sections). Each one
        is cut from its previous place and appended to the section in the
        order of the list, without document consistency check.

normalizeSheet(sheet, rows, columns)

normalizeSheet(sheet, 'full')

        This method preprocesses a given sheet so its components (rows,
        cells) become available for all the table-oriented methods described
        in this chapter. In some situations, this method must be used before
        any attempt to address any individual table component (column, row or
        cell). The return value is the target table object in a scalar context
        and the size (height, width) in an array context.
        This method works with any kind of ODF tables, whatever the containing
        document, and not only with spreadsheets.
        In the first form, the 2nd and 3rd arguments define the size of a
        rectangular area, beginning at the first cell ([0, 0] or "A1"), to
        be processed, in order to save time and CPU resources when the
        application needs to address objects only in the first corner of a huge
        table.
        The second form allows the OODoc to normalize the whole table,
        whatever the size. It's certainly the preferred form, as long as
        the target sheets are reasonably sized or the hardware is powerful
        enough.
        The processed area becomes a workspace which is safely
        addressable by any cell/row/column processing method. This
        preprocessing is sometimes required, sometimes not. For example,
        it's required on present OpenOffice.org Calc spreadsheets, and
        useless on present OpenOffice.org Text tables.
        It's automatically executed when getTable() is called with size
        arguments (or with the "normalize" option); therefore it's not always
        explicitly invoked by the applications. However, it's useful to know
        its purpose.
        The object addressing logic (which, for example, allows a program to
        directly reach a cell using its coordinates) relies on a continuous,
        regular mapping between the user's view and the physical XML storage
        of the tables. However, the OpenDocument specification allows any
        conforming application to map more than one table element to a
        single XML element. When two or more contiguous objects contain
        the same value and have the same style and the same data type, they
        *may* be mapped to a single XML element with a repetition attribute.
        As a consequence, the position of the appropriate XML element can't be
        directly calculated from the logical coordinates of the object, and
        OODoc needs to scan the table in order to get all the repetition
        attributes and calculate the real mapping. In addition, updating an
        object whose the XML corresponding element has a repetition attribute
        would automatically update all the objects mapped to the same element,
        producing unpredictable and generally wrong results.
        OpenOffice.org Calc systematically uses this storage optimization in
        spreadsheets, while OpenOffice.org Writer doesn't use it for tables in
        text documents. In Calc (sxc/ods) documents, the XML mapping of the
        whole content is "denormalized" in order to save memory: several table
        components can be mapped to a single XML element, so the XML address
        of each one can't be simply calculated from its logical coordinates.
        In order to allow the spreadsheet components to be addressed with the
        same methods as the Writer table components, normalizeSheet()
        reorganizes the XML mapping of the given sheet.
        Caution: The OpenDocument specification doesn't make any difference
        about this point between tables included in text documents and tables
        in spreadsheet-only documents. So any ODF-compliant application
        *could* denormalize the XML storage of any table and use the
        repetition attributes. As a consequence, normalizeSheet() *could* be
        required in the future for other documents than OOo Calc ones.
        This method is not (presently) always needed for tables included
        in OpenOffice.org Writer (odt/sxw) documents, because their storage is
        "normalized" (i.e. each component is mapped to an exclusive XML
        element), with the exception of the column objects. So,
        normalizeSheet() is required with these tables when the application
        needs to use a column-focused method such as getColumn(),
        insertColumn() or deleteColumn().
        In the other hand, normalizeSheet() is not required to address a sheet
        which has been created through the OODoc methods (provided that the
        document has not been edited with another application software in the
        meantime). These methods, i.e. appendTable() and insertTable(), create
        normalized tables, whatever the document class.
        Because this method is time and memory consuming, it should never
        be used to reorganize the largest possible area of a sheet (meaning
        thousands of rows and hundreds of columns that will probably never be
        used). So it's action is limited to a given area, controlled by the
        rows, columns arguments. When these arguments are not provided, the
        method uses the 'max_rows' and 'max_cols' properties instead (see the
        Properties section for other explanations). The processed area should
        be sized in order to cover all the cells to be reached by the program,
        and nothing more.
        The first argument can be either the logical name of the sheet (as
        it's shown in the bottom tab by OOo Calc), the sheet number, or a
        table object reference, previously returned by getTable(). The return
        value is the table object (or undef in case of failure).
        Example:
                $doc = odfDocument(file => 'report.ods');
                my $sheet = $doc->normalizeSheet('Sheet1', 7, 9);
                my $result = $doc->cellValue($sheet, 5, 6);
        In the sequence above, a top left area of 7 rows by 8 columns is
        pre-processed, so the cells from A1 to H6 of this sheet can be
        reached according to the same addressing scheme as in Writer tables.
        The last instruction gets the content of G6. Note that the second line
        of this example could be replaced by
                my sheet = $doc->getTable('Sheet1', 7, 9);
        knowing that, when called with size arguments, getTable() automatically
        executes normalizeSheet().
        The following code normalizes the whole table, whatever its size (but
        I don't recommend this option for tables containing thousands of rows
        by hundred of columns):
                $doc->normalizeSheet('Sheet1', 'full');
        This last instruction could be automatically and silently executed
        through the following one:
                $doc->getTable('Sheet1', 'normalize');
        The transformed sheets, of course, are readable by OOo Calc.
        They simply take some more disk space when the processed spreadsheet
        is saved. If the document is later read then written by OOo Calc,
        the storage is optimized again, so the effects of normalizeSheet()
        disappear.
        normalizeSheet() is neutral against already normalized tables.
        An explicit call to this method can be replaced by getTable() with the
        additional length and width parameters.

normalizeTable(table [, rows [, columns]])

        See normalizeSheet().

outputDelimitersOn()

outputDelimitersOff()

        Turns delimiters on or off. Used to mark up text exported by certain
        methods like getText or selectTextContent.
        The delimiters actually used depends on the table loaded into the
        OODoc::Text instance via the 'delimiters' property.

outputTextConversion(text)

        Returns the conversion in local character set of the given text,
        supposed to be in UTF8. The local character set of the document
        is used (see the 'local_encoding' property).

removeBookmark(id)

        See deleteBookmark().

removeHeading(position [, level => level_no])

removeHeading(element)

        Removes the given heading element.
        Example:
            $doc->removeHeading(4);
        removes the 5th heading (whatever its level) counted from the
        beginning of the document.
        See getHeading() for the argument and option.
        If the argument is an element reference (second form), the type is
        not checked and this method becomes the equivalent of removeElement()
        (which is documented with OpenOffice::OODoc::XPath generic methods).

removeHyperlink(path, position)

removeHyperlink(element)

        Removes any hyperlink contained in the given element, leaving
        in place the previously hyperlinked text.

removeParagraph(position)

removeParagraph(element)

        Removes the paragraph at the given position (first form).
        The paragraph to be removed can be indicated by element reference
        (second form). In this case, the type of element is not checked and
        this method becomes the equivalent of removeElement.

removeCellSpan($cell)

        Removes the multi-column, multi-row span of a table cell. The width
        and height of the cell are reduced to one column and one row.The
        uncovered cells take the same style and data type as the reduced cell.
        
        Caution: This method works with cells that heve been expanded using
        the "number-rows-spanned" and "number-columns-spanned" OpenDocument
        attributes. The cell expansion is done this way by the cellSpan()
        method, as well as with the present version of OpenOffice.org Calc.
        But other applications (including the present version of
        OpenOffice.org Writer) can implement the cell merge using subtables
        instead of span attributes.
        
=head3  removeSpan(path, position)

removeSpan(element)

        "Flattens" a text element, removing all presentation distinctions
        which may mark out some substrings of its content.
        For a more drastic result, see flatten() in OpenOffice::OODoc::XPath.
        See also setSpan().

renameSection(section, newname)

        Renames an existing section using the second argument.

renameTable(table, newname)

        Renames an existing table using the second argument.

rowStyle(row_element [, style])

rowStyle(table, row [, style])

        Reads or modifies a table row's style, in the same way as
        columnStyle does for columns.

sectionProtectionKey(section)

        Returns the encrypted key which is associated to the given section,
        if the section is write-protected by key.
        This method can't provide the real key (as it should be typed by
        the end-user to unlock the section), but the returned value may be
        reused in order to protect more than one section with the same
        password.
        See also unlockSection().

sectionStyle(section, [newstylename])

        Without argument, returns the current style of a given section.
        If an argument is provided, it becomes the new style of the section.

selectDrawPageByName(name)

        In a presentation or drawing document, returns the page element
        identified by the given name, or undef if the name is unknown.
        The names to be used correspond to the displayed page names in
        OpenOffice.org Impress.

selectElementByBookmark(name)

        Returns the element containing the given bookmark.
        Caution: this method works with position bookmarks only, not with
        range bookmarks (a range bookmark can be spread over several text
        elements).

selectElementByContent(filter, [...])

        Returns the first text element whose content matches the 'filter'
        (which can be an exact string or a regular expression), or undef
        if no matching content is found.
        With more than one argument, this method can be used for replacement
        operations, or user-defined function triggering, in the same
        conditions as selectElementsByContent().

selectElementsByContent(filter)

selectElementsByContent(filter, replacement)

selectElementsByContent(filter, action [, other_arguments])

        This method returns a list of text elements such as paragraphs,
        headers or ordered/unordered lists whose content matches the search
        criteria contained in 'filter' (which can be an exact string or a
        regular expression).
        This method is context-sensitive (see currentContext() and
        resetCurrentContext() in OpenOffice::OODoc::XPath for details about
        the context). Its search space is restrained to the children of the
        context element (so the default search space is the whole document
        body). Be careful: if the search is successful, the returned elements
        are not always the direct containers of the string which matches the
        filter; they are the elements whose any child element contains the
        string. For example, if a table cell contains a matching string, the
        containing table, and not the cell, is returned. If a paragraph
        containing the matching string belongs to a section, the section,
        not the paragraph, is returned. However, if the current context is
        the table, selectElementsByContent() will return the matching rows.
        And if the context is the section, it will return the matching
        objects included in the section (knowing that a section can contain
        other sections and any other structured containers).
        The first form simply returns the given list without modifying the
        text.
        The second form returns the same list, but replaces all strings
        which match the search criteria with the 'replacement' string as it
        goes.
        The third form, where the 'action' argument is a program function
        reference, launches the given function each time the filter string
        is matched. If defined, the value returned by the function is used
        as the replacement value. If the function returns a null value
        (undef) then no replacement is made. If it returns an empty string,
        the retrieved text is deleted. The called function receives the rest
        of the arguments, in this order:
        1) all remaining arguments after 'action' ('other_arguments'), if any.
        2) the element containing the retrieved text.
        3) the string actually selected. If the filter is an exact string,
        it is equal to the filter. If the filter is a regular expression,
        it matches the "real" text retrieved.
        The returned text (if any) must be encoded in UTF8.
        The returned list is the same one returned by the first two forms.
        Example:
            sub action
                {
                my ($d, $element, $value) = @_;
                if ($value < 100)
                        {
                        $d->removeElement($element);
                        return undef;
                        }
                else
                        {
                        return $value * 2;
                        }
                }
                        @list =
             $doc->selectElementsByContent("[0-9]+", \&action, $doc);
        In the above code, the subroutine "action" is called each time an
        integer (one or more digits) is found. The subroutine receives the
        document reference itself as its first argument (an OODoc::Text
        object given by the application). Next, it automatically receives
        the reference of the element in which the search string was found
        (i.e. an integer) and, finally, it receives the exact number found
        as its second-last and last arguments respectively. If this number
        is less than 100, the element is removed. This is why the subroutine
        needed the $doc object, used to invoke the removeElement method. If
        more than 100, the number is multiplied by two and the result
        replaces the original value in the element. The list returned by
        selectElementsByContent contains all elements which contain the
        search string, including any which might have been removed by the
        called function while it was running.
        It is the "main" elements containing strings which matched the
        filter which are returned and not any of their sub-elements. For
        example, if the returned string is found in one of the items in an
        unordered list, the list element is selected and not the item.
        Similarly, the table is selected when one of its cells matches the
        filter, and the paragraph which is selected when the search string
        is found in an attached footnote.
        However, a character string cannot be considered to match the filter
        unless it is entirely within the same sub-element and all its
        characters have the same style. For example, if you were searching
        for the string "OpenOffice" using selectElementsByContent, the
        string, if present, can't be found if, say, "Open" and "Office" are
        not represented with the same font, the same color and/or the same
        font size.
        Note: This method can be used with a "non-filtering" regular
        expression (".*") for unconditional movement through all text
        elements.

selectElementByTextId(id)

        Returns the element (if any) identified by the given value of text
        identifier. The text identifier (i.e. "text:id") is an optional
        attribute for text containers. It *should* be unique in a document.
        However, this identifier is presently used in a few elements only
        by OpenOffice.org.

selectHyperlinkElement(url_filter)

        Retrieves the first hyperlink element (if any) whose the URL matches
        the argument. Example:
                my $e = $doc->selectHyperlinkElement("cpan");
        could return an hyperlink element containing "www.cpan.org" as
        well as "search.cpan.org", etc. The URL filter is processed as
        a regexp.
        Note: In order to get the text container (ex: paragraph) where the
        hyperlink is located, the application can use the parent() element
        method. Example:
                 my $e = $doc->selectHyperlinkElement("www.cpan.org");
                 my $p = $e->parent if $e;

selectHyperlinkElements(url_filter)

        Returns the list of the hyperlink elements whose the URL matches
        the argument (and not only the first one).

selectParagraphByStyle(stylename)

        Returns the first paragraph (if any) using the given style.

selectParagraphsByStyle(stylename)

        Returns the list of the paragraphs using the given style.

selectTextContent(filter)

selectTextContent(filter, replacement)

selectTextContent(filter, action [, other_arguments])

        Returns a list of header texts and/or paragraphs (in the document's
        own order) which match the given search criteria.
        The filter can be an exact string or a regular expression. A filter
        set to ".*" (no selection) will result in an export of the entire
        text.
        In all three forms, this method behaves like
        selectElementsByContent, except that it returns text instead of a
        list of elements.
        Depending on the context (list or scalar), the result is returned in
        the form of a list of rows or in the form of a single character
        string where the elements are separated by a line-feed ("\n").
        Note: called with a "non-filtering" regular expression, this method
        will result in a "flat" export of the document:
            print $doc->selectTextContent('.*');

setBibliographyMark(element, offset, identifier => id [, options])

        Creates a new bibliography mark within a given text element at a
        given offset. The hosting element, the offset (relative to the content
        of the element) and the "identifier" parameter are mandatory. The other
        options are all the possible attributes of an OpenDocument-compliant
        bibliography entry, such as author, editor, isbn, title, year, and
        many others. Example:
                $para = $doc->selectElementByContent("ODF-related book");
                $doc->setBibliographyMark
                        (
                        $para, 0,
                        identifier      => "JDE",
                        title           => "OASIS OpenDocument Essentials",
                        author          => "J. David Eisenberg",
                        year            => 2005,
                        isbn            => "1-4116-6832-4"
                        );
        This sequences puts a bibliography mark at the beginning (position=0)
        of a previously selected text element. This mark will be displayed by
        default as "[JDE]" with OpenOffice.org Writer.

setBookmark(element, name [, offset])

        Puts a bookmark in a text element.
        Example:
                my $paragraph = $doc->selectElementByContent
                                                ("Eragon and Saphira");
                $doc->setBookmark($paragraph, "The Heroes");
        puts a bookmark identified by "The Heroes" in a paragraph where a
        given text has been found (of course, the bookmark will remain even
        if the text of the paragraph is changed later).
        By default, the bookmark is put at the beginning of the text. But,
        thanks to the optional offset, it can be put at any position within
        the text of the bookmarked element.
        Note: This method puts a position bookmark, and not a range bookmark.
        The OpenDocument specification allows both range and position
        bookmarks. However, a range bookmark is not an element; it's a pair
        of elements ("bookmark-start" and "bookmark-end").

setHyperlink(path, position, [context,] expression, url)

setHyperlink(element, [context,] expression, url [, options])

        Puts an hyperlink on a text area in a given text element.
        Example:
            $doc->setHyperlink($para, "CPAN", "http://www.cpan.org";);
        This method works in the same was as setSpan(), described below,
        but the text span is hyperlinked, and not only presented according
        a particular style. So, the third argument must be an URL instead
        of a style. 
        
        A set of hyperlink attributes may be optionally provided as a hash.
        For example, the application can provide a 'style-name' and a
        'visited-style-name' options:
        
            $doc->setHyperlink
                        (
                        $para, "CPAN", "http://www.cpan.org";,
                        'style-name' => "ToBeVisited",
                        'visited-style-name' => "Visited"
                        );
                        
        'style-name' selects the style which applies to the text of the
        hyperlink, as long as the URL is not visited, while
        'visited-style-name' indicates, of course, the style in use if the
        link location was already visited. These styles must belong to the
        'text' family. 
        
        Other allowed hyperlink attributes are listed in the 5.1.4 of the
        OASIS OpenDocument 1.0 specification.
        Note: The hyperlink is not always a remote URL, such as in the
        example above. Internal references ere allowed as well. An
        internal reference is prefixed by "#". If an internal reference
        is a heading, it's prefixed by "#" and suffixed by "|outline".
        An hyperlink may be aimed at a location inside another document;
        such a link is the concatenation of a file path, a "#", and a local
        name that makes sense in the target document (bookmark, heading...).

setSpan(path, position, [context,] expression, style)

setSpan(element, [context,] expression, style)

        Applies a special text style to one or more parts of the content
        of a text element.
        In OpenDocument XML language, a "text span" is a substring whose
        presentation style differs from the style of the text element to
        which it belongs. For example, a given "span" could be in italics
        while the rest of the paragraph is in normal characters.
        Caution: the same word has a different meaning when it's used
        about table cells (see cellSpan()).
        A "span" is therefore a way to use several styles within the same
        element, bearing in mind that the paragraph's global style can be
        modified by setStyle().
        The properties of a text span can be related to any kind of character
        string presentation, such as font, font size, font weight, font
        style, and colors (background and foreground). Whatever these
        properties, they apply through a style.
        The desired text element is normally indicated by [path, position]
        or reference (recommended). The optional argument 'context' which
        consists of an element reference, allows you (when using [path,
        position]) to limit a search to child elements of a particular
        element (e.g. page header, page footer, item list, section, etc.).
        'expression' represents a filter; every substring contained
        in the target element and matching the filter is attributed using the
        given style. This filter is processed, up to some extent, as a regular
        expression, but there is no full perl regexp support here.
        'style' is obviously the style describing the presentation
        characteristics to give to it. See OODoc::Styles for how to construct
        styles by program or to replicate existing styles. Remember that a
        style must belong to the 'text' family in order to be used in this
        context (for example, a paragraph style would not work).
        As a highlighted string can be quite long or not all known in
        advance, you can represent it with a regular expression. Taking the
        following paragraph as an example:
        "OpenOffice.org includes Writer, Calc, Draw and Impress"
        Assuming this text is contained in a $p element, the following
        instruction gives the "Highlight" style to the "OpenOffice.org",
        "Writer", "Calc", "Draw", and "Impress" substrings:
                $doc->setSpan
                    (
                    $p,
                    'OpenOffice\.org|Writer|Draw|Calc|Impress',
                    "Highlight"
                    );
        The style referred to by setSpan() may be an existing style as well
        as a style to be defined by the program (see createStyle() in
        OpenOffice::OODoc::Styles).
        
        setSpan() works on any kind of text container, whatever its
        hierarchical level. For example, if the given element is a table,
        the span style attribution applies to every cell of the table. And
        the same change can be done in all the displayable content not
        including page headers, page footers, and page backgrounds through
        a single setSpan() call, if the given element is the document body
        itself (see getBody() in OpenOffice::OODoc::XPath).
        
        Caution: this method can neither recognise nor handle a string
        located partly in a "span" and partly outside it. It can, however,
        create a "span" inside another.
        See also removeSpan() and setHyperlink().

setStyle(path, position, style_name)

setStyle(element, style_name)

        Obsolete. See textStyle.

setText(element, text ,[text, ...])

        Alters the setText method of OODoc::XPath, so that it can handle
        complex text elements.
        If the element is a paragraph, a header or a list item (ordered or
        unordered), its content is replaced by the 'text' argument. Caution:
        setText() deletes and replaces the previous content of the paragraph.
        If the element is a table cell, this method is the same as
        updateCell.
        If the element is a list (ordered or unordered), the content of each
        'text' argument (however many) forces the creation of a new item
        which is appended to the list (existing items remain unchanged).
        Example:
            $doc->setText($element, "Peter", "Paul", "John")
        adds three items to the list if $element is a list. If $element is,
        for example, a paragraph, then the second argument ("Peter") becomes
        the content of the paragraph and the other arguments are ignored.
        If the element is a note element or a note body, the given text
        becomes the content of the note body.
        If the element is a section, the whole content of the section is
        deleted and replaced by a single paragraph containing the given text.
        For all other types of $element, setText() behaves normally as defined
        in OODoc::XPath.
        Note: setText(), as any other text input method, can't properly
        process repeated spaces. So, a sequence of spaces, whatever its
        length, is replaced by a single space. See setText() and extendText()
        in OpenOffice::OODoc::XPath.
        
=head3  setTextBoxContent(text_box, content)
        Fills the given text box according to the given content.
        
        The first argument may be the unique name, the order number or the
        reference of a text box. The content is processed in the same way
        as the content option in createTextBox().

setTextField(element, [context,] expression, field-type [, options])

        Replaces one or more substrings of a given text element by a variable
        text field. See textField() in the present manual chapter for some
        information about text fields.
        
        This method works the same way as setSpan() to retrieve the strings
        to be replaced. However, each matching string becomes invisible and
        is replaced by the variable field.
        
        Optional field attributes are allowed after the field type in the same
        conditions as for textField().
        
        The following example replaces every occurrence of "TIMESTAMP" in a
        given section by a variable field displaying a time which is 2 hours
        later than the current time:
        
                $section = $doc->getSection("Variables");
                $doc->setTextField
                        (
                        $section, "TIMESTAMP", 'time',
                        'time-adjust' => 'PT02H'
                        );

tableName(table [, newname])

        Returns the current name of a given table, or replaces it with a new
        name given as the second argument. The table can be indicated
        by number, logical name or reference.
        Returns undef unless the given table is defined.
        If the new name is the name of an existing table, the table is not
        renamed and an error message is produced.

textBoxCoordinates(text_box [, new_coord])

        Gets or sets the position of a text box. The new coordinates, if
        any, must be provided using the same syntax and units as with
        the "position" option in createTextBox().
        
=head3  textBoxDescription(text_box, [, new_desc])
        Gets or sets the optional description (long label) of the given
        text box.
        
=head3  textBoxName(text_box [, new_name])
        Allows the applications to get the name of the given text box
        (which makes sense if the name is unknown, i.e. if the first
        argument is the element reference or the order number and not
        the name itself, of course). If a literal is passed as a second
        argument, the text box is renamed accordingly.
        
=head3  textId(element [, text_id])
        This accessor gets or sets the "text identifier", an optional
        attribute of any text container. This attribute is presently used
        for a few elements by OpenOffice.org (ex: the notes).
        With one argument only, returns the existing identifier of the given
        element, or undef if the element doesn't own a text identifier.
        If a second argument is provided, its value replaces any previous
        value of the identifier, and the text identifier is created if needed.
        The new value is not checked, so the application should take care of
        its uniqueness.
        The text identifier can be used as a bookmark, knowing that, unlike a
        bookmark, this attribute is not visible for the end user.
        See also selectElementByTextId().
        Caution: The text identifiers created or changed by other applications
        are presently *not* preserved when the document is edited through
        OpenOffice.org.

tableStyle(table [, style])

        Returns the current style of a given table, or replaces it with a
        new style given as the second argument. The table can be indicated
        by number, logical name or reference.

textField(type [, options])

        Creates and returns a variable field to be inserted within a text
        element.
        
        Such a field doesn't contain any static text by itself. When
        included in a text container, it tells the editing/printing software
        to display dynamic context data, such as date, time, file name,
        page number, page count, author, etc. Variable text fields are mainly
        used in page headers or footers, but they are allowed in the page
        bodies as well. Remember that a text field must be attached as a child
        element of a text container (paragraph or heading) in order to be
        displayed. However, the text container itself may be attached to
        anything anywhere (ex: a page header, a table cell, a list item, etc).
        
        The first argument (mandatory) is the field type. Many field types
        are allowed, so they are not all listed here. For some of them,
        options are allowed or required.
        
        To get the full list of field types, and their possible options,
        look at the chapter 6 "Text fields" in the OpenDocument 1.0
        specification. However, a few ones are presented below as examples.
        The field type, as well as each field option, must be provided as it
        appears in the OpenDocument specification, without the "text:" prefix
        (this prefix is automatically added). However, the application can
        force any arbitrary field name and/or field option such as 'xxx:yyy'
        (any name or option including a ':' is accepted as is).
        
        Caution: textField() allows the user to create any kind of field,
        without OpenDocument compliance check. So it can be used to insert
        application-specific markup in any place. This feature could prove
        useful in some situations, but remember that a typo in a field type
        or option will not be automatically detected. In the other hand, every
        non-OpenDocument field is silently removed if the document is later
        edited and saved through OpenOffice.org.
        
        Knowing that the created element is not attached to a text container,
        it must be inserted or appended through another method. For example,
        the following sequence creates a paragraph displaying "This document
        contains <page-count> pages and we are in the page <page-number>":
        
                $para = $doc->appendParagraph
                        (
                        text => "This document contains ",
                        style => "Standard"
                        );
                $pg = $doc->textField('page-count');
                $doc->appendElement($para, $pg);
                $doc->extendText($para, " pages and we are in the page ");
                $pg = $doc->textField('page-number');
                $doc->appendElement($para, $pg);        
                
        The 'page-number' field type, introduced above, could be adjusted in
        order to display the page number of any following or preceding page.
        To do so, a 'page-adjust' option, set with a positive or negative
        integer value, should be provided to createField():
        
                $pg = $doc->textField
                        ('page-number', 'page-adjust' => -2);
                        
        Note that, if the arithmetic sum of the real page number and the
        'page-adjust' value doesn't match an existing page, the editing
        application should display nothing.
                        
        As another example, a 'chapter' field displays the current chapter
        number or title. It requires 2 options: 'outline-level', an integer
        which selects the hierarchical heading level to be regarded as the
        chapter level, and 'display' which controls the value to display
        (chapter number, chapter name or both). The following instruction
        creates a field displaying the number and the name of the current
        level 1 heading:
        
                $chapter_field = $doc->textField
                        (
                        'chapter',
                        'outline-level' => 1,
                        'display'       => 'number-and-name'
                        );
                        
        Other possible fields display the current date or time (see the
        setTextField() example about a time field with an optional ajustment),
        the author's name, the file path or name, and many other variable or
        fixed values, according to many options.

textStyle(path, position [, style])

textStyle(element [, style])

        Reads a text element's style or, if a 'style' argument is given,
        changes it. The text element may be a section, paragraph, a header,
        or a span included in a paragraph or a header.
        The element can be indicated by the pair [path, position] or by
        reference.
        Note: the returned value is a literal style identifier or the value
        of the element's 'text:style-name' attribute.
        Note: this method allows you to attribute a non-existent style to a
        paragraph or header. Such a style can be created later (e.g. using
        createStyle) or not at all. The actual existence of the style is
        only relevant to the needs of the application. Obviously,
        opening a document which contains references to non-existent styles
        in OpenOffice.org will give unpredictable results as to the viewing
        of the given paragraphs or headers.

unlockSection(section)

        Removes the write protection (if any) of the given section. If the
        section was key-protected, the key is removed and provides the return
        value of the method.
        Example:
                my $key = $doc->unlockSection("Section1");
                $doc->lockSection("Section2", $key);
        The two lines above remove the protection of "Section1" and protect
        "Section2" with the password which previously protected "Section1".

unlockSections()

        Removes the write protection of every section in the document.

updateCell(table, row, column, value [, text])

updateCell(element, value [, text])

        Modifies the content of a table cell.
        In its first form, indicates a cell by its 3D coordinates, as with
        getCell(). In its second form, indicates a cell by its element
        reference.
        If the cell is set to literal, its content is limited to its text.
        In this case, the optional argument "text" is of no use (the text
        equals the value).
        If the cell is set to numeric (float, currency, date, etc.), you
        should generally pass a literal argument as well as the value.
        This method can be replaced by cellValue() which allows reads and
        writes.

userFieldValue(user_field [, value])

        Reads the stored value of a given user field or changes it if a
        value is provided. The 1st argument can be either the name of the
        field (as it appears for the end-user) or a previously loaded
        user field element. See also getUserFieldElement().
        This method doesn't create any new user field. It can only read or
        update an existing one.
        If the given user field is numeric (ex: date, currency) the returned
        and/or provided value is the internally stored value, and not the
        displayed one. The user field is displayed according to a date style
        by the applications. For example, 'Tuesday, March 1, 2005' is a
        possible displayed value for 38412.

variableValue(name/element [, newvalue])

        Returns the current value of the given user-defined variable or, if
        a new value is provided as the second argument, updates the variable
        accordingly.
        [Contribution by Andrew Layton]

OpenOffice::OODoc::Element methods

        While all the methods above belong to the document object, some
        additional methods are defined for individual text containers. These
        methods belong to the OpenOffice::OODoc::Element class. The most
        general of them are described in the OpenOffice::OODoc::XPath manual.
        Some of them (listed below) are simple read-only accessors allowing
        the user to check the type of any element.

isXXX() methods

        A set of "isXXX" methods, returning true or false, allow to check
        the type of a given element. Caution, this methods belong to the
        elements, not to the document.
        Example:
            print "This is a list" if $element->isItemList;
        Here is the list of element type indicators:
            isBibliographyMark          bibliography mark (in the doc. body)
            isCovered                   covered (invisible) table cell
            isDrawPage                  presentation or drawing page
            isEndnote                   endnote main element
            isEndnoteBody               endnote body element
            isEndnoteCitation           endnote citation element
            isFootnote                  footnote main element
            isFootnoteBody              footnote body element
            isFootnoteCitation          footnote citation element
            isHeading                   heading
            isItemList                  list (ordered or unordered)
            isListItem                  list item
            isNote                      main note element (end- or footnote)
            isNoteBody                  note body (in end- or footnote)
            isOrderedList               ordered list (OOo only)
            isParagraph                 paragraph
            isSection                   section
            isSequenceDeclarations      set of sequence declarations
            isSpan                      span element (see setSpan)
            isTable                     table
            isTableCell                 table cell
            isTableRow                  table row
            isUnorderedList             unordered list (OOo only)

Other element methods

        For a neater and more direct access to element types, see the
        getName method of XML::Twig::Elt. A call to $element->getName
        returns the element's XML name including its namespace prefix
        e.g. 'text:p' for a paragraph or 'table:table-row' for a table
        row. Remember that all the features of XML::Twig::Elt are
        available for any text container.

Properties

        No class variables are exported.
        Instance properties are the same as for OODoc::XPath, plus:
            'delimiters'        => delimiter table
        hash giving the relation between element types and the delimiters to
        use when exporting text (see getText).
            'use_delimiters'    => delimiter usage (see getText)
        indicates whether delimiters are to be used by getText or not when
        exporting text. Set to 'on' by default. Can be set to 'off' or
        another value to stop or limit use of delimiters.
            'heading_style'     => default header style
        indicates the default header style to be used by element creation
        methods when no style is specified. Set to 'Heading 1' by default.
            'paragraph_style'   => default paragraph style
        indicates the default paragraph style to be used by element creation
        methods when no style is specified. Set to 'Standard' by default.
            'field_separator'   => field separator
        contains the character string to be used as the field separator when
        exporting tables. By default it is ";".
            'line_separator'    => line separator
        contains the string to be used to separate lines when exporting
        "flat" text. By default, it is a line-feed ("\n").
            'max_rows'          => max table length (default 32)
            'max_cols'          => max table width (default 26)
        these 2 properties control the size of the "managed area" in a
        spreadsheet; the default "managed area" is the A1:Z31 rectangle,
        corresponding to the (0,0)-(31,25) coordinates; see getTable() and
        getCell() and normalizeSheet() for more explanations.
            'expand_tables'     => table transformation usage
        indicates whether the XML representation of the spreadsheets are to
        be expanded in order to allow the same cell/row addressing scheme
        as with the tables belonging to text documents; by default, this
        property is not set. If this property is set to 'on', the first
        access to any sheet will automatically trigger this transformation,
        so the explicit normalizeSheet() method will not be needed.
        However, this automatic (but costly) transformation has a drawback:
        it uses the same 'max_rows' and 'max_cols' values for every targeted
        sheet, whatever the really needed managed area for each one.


AUTHOR/COPYRIGHT

Developer/Maintainer: Jean-Marie Gouarne http://jean.marie.gouarne.online.fr

Contact: jmgdoc@cpan.org

Copyright 2004-2007 by Genicorp, S.A. http://www.genicorp.com

Initial English version of the reference manual by Graeme A. Hunter (graeme.hunter@zen.co.uk)

License:

        - Licence Publique Generale Genicorp v1.0
        - GNU Lesser General Public License v2.1
 OpenOffice::OODoc::Text - The text processing submodule of OpenOffice::OODoc