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XML::LibXML::Text(3)  User Contributed Perl Documentation XML::LibXML::Text(3)

       XML::LibXML::Text - XML::LibXML Class for Text Nodes

         use XML::LibXML;
         # Only methods specific to Text nodes are listed here,
         # see XML::LibXML::Node manpage for other methods

         $text = XML::LibXML::Text->new( $content );
         $nodedata = $text->data;
         $text->setData( $text_content );
         $text->substringData($offset, $length);
         $text->appendData( $somedata );
         $text->insertData($offset, $string);
         $text->deleteData($offset, $length);
         $text->deleteDataString($remstring, $all);
         $text->replaceData($offset, $length, $string);
         $text->replaceDataString($old, $new, $flag);
         $text->replaceDataRegEx( $search_cond, $replace_cond, $reflags );

       Unlike the DOM specification, XML::LibXML implements the text node as
       the base class of all character data node. Therefor there exists no
       CharacterData class.  This allows one to apply methods of text nodes
       also to Comments and CDATA-sections.

       The class inherits from XML::LibXML::Node. The documentation for
       Inherited methods is not listed here.

       Many functions listed here are extensively documented in the DOM Level
       3 specification (http://www.w3.org/TR/DOM-Level-3-Core/
       <http://www.w3.org/TR/DOM-Level-3-Core/>). Please refer to the
       specification for extensive documentation.

             $text = XML::LibXML::Text->new( $content );

           The constructor of the class. It creates an unbound text node.

             $nodedata = $text->data;

           Although there exists the "nodeValue" attribute in the Node class,
           the DOM specification defines data as a separate attribute.
           "XML::LibXML" implements these two attributes not as different
           attributes, but as aliases, such as "libxml2" does. Therefore




           will have the same result and are not different entities.

             $text->setData( $text_content );

           This function sets or replaces text content to a node. The node has
           to be of the type "text", "cdata" or "comment".

             $text->substringData($offset, $length);

           Extracts a range of data from the node. (DOM Spec) This function
           takes the two parameters $offset and $length and returns the sub-
           string, if available.

           If the node contains no data or $offset refers to an non-existing
           string index, this function will return undef. If $length is out of
           range "substringData" will return the data starting at $offset
           instead of causing an error.

             $text->appendData( $somedata );

           Appends a string to the end of the existing data. If the current
           text node contains no data, this function has the same effect as

             $text->insertData($offset, $string);

           Inserts the parameter $string at the given $offset of the existing
           data of the node. This operation will not remove existing data, but
           change the order of the existing data.

           The $offset has to be a positive value. If $offset is out of range,
           "insertData" will have the same behaviour as "appendData".

       deleteData($offset, $length)
             $text->deleteData($offset, $length);

           This method removes a chunk from the existing node data at the
           given offset.  The $length parameter tells, how many characters
           should be removed from the string.

       deleteDataString($string, [$all])
             $text->deleteDataString($remstring, $all);

           This method removes a chunk from the existing node data. Since the
           DOM spec is quite unhandy if you already know "which" string to
           remove from a text node, this method allows more perlish code :)

           The functions takes two parameters: $string and optional the $all
           flag. If $all is not set, undef or 0, "deleteDataString" will
           remove only the first occurrence of $string. If $all is
           TRUE"deleteDataString" will remove all occurrences of $string from
           the node data.

       replaceData($offset, $length, $string)
             $text->replaceData($offset, $length, $string);

           The DOM style version to replace node data.

       replaceDataString($oldstring, $newstring, [$all])
             $text->replaceDataString($old, $new, $flag);

           The more programmer friendly version of replaceData() :)

           Instead of giving offsets and length one can specify the exact
           string ($oldstring) to be replaced. Additionally the $all flag
           allows to replace all occurrences of $oldstring.

       replaceDataRegEx( $search_cond, $replace_cond, $reflags )
             $text->replaceDataRegEx( $search_cond, $replace_cond, $reflags );

           This method replaces the node's data by a "simple" regular
           expression. Optional, this function allows to pass some flags that
           will be added as flag to the replace statement.

           NOTE: This is a shortcut for

             my $datastr = $node->getData();
              $datastr =~ s/somecond/replacement/g; # 'g' is just an example for any flag
              $node->setData( $datastr );

           This function can make things easier to read for simple
           replacements. For more complex variants it is recommended to use
           the code snippet above.

       Matt Sergeant, Christian Glahn, Petr Pajas


       2001-2007, AxKit.com Ltd.

       2002-2006, Christian Glahn.

       2006-2009, Petr Pajas.

perl v5.12.1                      2009-10-07              XML::LibXML::Text(3)

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