Template::Plugin::XML::XPath.3pm

Langue: en

Autres versions - même langue

Version: 2007-02-09 (ubuntu - 07/07/09)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

Template::Plugin::XML::XPath - Plugin interface to XML::XPath

SYNOPSIS

     # load plugin and specify XML file to parse
     [% USE xpath = XML.XPath(xmlfile) %]
     [% USE xpath = XML.XPath(file => xmlfile) %]
     [% USE xpath = XML.XPath(filename => xmlfile) %]
 
     # load plugin and specify XML text to parse
     [% USE xpath = XML.XPath(xmltext) %]
     [% USE xpath = XML.XPath(xml => xmltext) %]
     [% USE xpath = XML.XPath(text => xmltext) %]
 
     # then call any XPath methods (see XML::XPath docs)
     [% FOREACH page = xpath.findnodes('/html/body/page') %]
        [% page.getAttribute('title') %]
     [% END %]
 
     # define VIEW to present node(s)
     [% VIEW repview notfound='xmlstring' %]
        # handler block for a <report>...</report> element
        [% BLOCK report %]
           [% item.content(view) %]
        [% END %]
 
        # handler block for a <section title="...">...</section> element
        [% BLOCK section %]
        <h1>[% item.getAttribute('title') | html %]</h1>
        [% item.content(view) %]
        [% END %]
 
        # default template block passes tags through and renders
        # out the children recursivly
        [% BLOCK xmlstring; 
           item.starttag; item.content(view); item.endtag;
        END %]
        
        # block to generate simple text
        [% BLOCK text; item | html; END %]
     [% END %]
 
     # now present node (and children) via view
     [% repview.print(page) %]
 
     # or print node content via view
     [% page.content(repview) %]

DESCRIPTION

This is a Template Toolkit plugin interfacing to the XML::XPath module.

All methods implemented by the XML::XPath modules are available. In addition, the XML::XPath::Node::Element module implements present($view) and content($view) methods method for seamless integration with Template Toolkit VIEWs. The XML::XPath::Node::Text module is also adorned with a present($view) method which presents itself via the view using the 'text' template.

To aid the reconstruction of XML, methods starttag and endtag are added to XML::XPath::Node::Element which return the start and end tag for that element. This means that you can easily do:

   [% item.starttag %][% item.content(view) %][% item.endtag %]

To render out the start tag, followed by the content rendered in the view ``view'', followed by the end tag.

AUTHORS

This plugin module was written by Andy Wardley.

The XML::XPath module is by Matt Sergeant.

Copyright (C) 1996-2006 Andy Wardley. All Rights Reserved.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

Template::Plugin, XML::XPath, XML::Parser