ÿþ/* encoding: utf-8



  ****  linkify plugin for jQuery - automatically finds and changes URLs in text content into proper hyperlinks  ****



  Version: 1.0



  Copyright (c) 2009

    Már Örlygsson  (http://mar.anomy.net/)  &

    Hugsmiðjan ehf. (http://www.hugsmidjan.is)



  Dual licensed under a MIT licence (http://en.wikipedia.org/wiki/MIT_License)

  and GPL 2.0 or above (http://www.gnu.org/licenses/old-licenses/gpl-2.0.html).



-----------------------------------------------------------------------------



  Demo and Qunit-tests:

    * <./jquery.linkify-1.0-demo.html>

    * <./jquery.linkify-1.0-test.html>



  Documentation:

    * ...



  Get updates from:

    * <http://github.com/maranomynet/linkify/>

    * <git://github.com/maranomynet/linkify.git>



-----------------------------------------------------------------------------



  Requires:

    * jQuery (1.2.6 or later)



  Usage:



      jQuery('.articlebody').linkify();



      // adding plugins:

      jQuery.extend( jQuery.fn.linkify.plugins, {

          name1: {

              re:   RegExp

              tmpl: String/Function

            },

          name2: function(html){ return html; }

        });



      // Uses all plugins by default:

      jQuery('.articlebody').linkify();



      // Use only certain plugins:

      jQuery('.articlebody').linkify( 'name1,name2' );

      jQuery('.articlebody').linkify({  use: 'name1,name2'  });

      jQuery('.articlebody').linkify({  use: ['name1','name2']  });



      // Explicitly use all plugins:

      jQuery('.articlebody').linkify('*');

      jQuery('.articlebody').linkify({  use: '*'  });

      jQuery('.articlebody').linkify({  use: ['*']  });



      // Use no plugins:

      jQuery('.articlebody').linkify('');

      jQuery('.articlebody').linkify({  use: ''  });

      jQuery('.articlebody').linkify({  use: []  });

      jQuery('.articlebody').linkify({  use: ['']  });



      // Perfmorm actions on all newly created links:

      jQuery('.articlebody').linkify( function (links){ links.addClass('linkified'); } );

      jQuery('.articlebody').linkify({  handleLinks: function (links){ links.addClass('linkified'); }  });



*/



(function($){



  var noProtocolUrl = /(^|["'(\s]|&lt;)(www\..+?\..+?)((?:[:?]|\.+)?(?:\s|$)|&gt;|[)"',])/g,

      httpOrMailtoUrl = /(^|["'(\s]|&lt;)((?:(?:https?|ftp):\/\/|mailto:).+?)((?:[:?]|\.+)?(?:\s|$)|&gt;|[)"',])/g,

      linkifier = function ( html ) {

          return html

                      .replace( noProtocolUrl, '$1<a href="<``>://$2">$2</a>$3' )  // NOTE: we escape `"http` as `"<``>` to make sure `httpOrMailtoUrl` below doesn't find it as a false-positive

                      .replace( httpOrMailtoUrl, '$1<a href="$2">$2</a>$3' )

                      .replace( /"<``>/g, '"http' );  // reinsert `"http`

        },





      linkify = $.fn.linkify = function ( cfg ) {

          if ( !$.isPlainObject( cfg ) )

          {

            cfg = {

                use:         (typeof cfg == 'string') ? cfg : undefined,

                handleLinks: $.isFunction(cfg) ? cfg : arguments[1]

              };

          }

          var use = cfg.use,

              allPlugins = linkify.plugins || {},

              plugins = [linkifier],

              tmpCont,

              newLinks = [],

              callback = cfg.handleLinks;

          if ( use == undefined ||  use == '*' ) // use === undefined  ||  use === null

          {

            for ( var name in allPlugins )

            {

              plugins.push( allPlugins[name] );

            }

          }

          else

          {

            use = $.isArray( use ) ? use : $.trim(use).split( / *, */ );

            var plugin,

                name;

            for ( var i=0, l=use.length;  i<l;  i++ )

            {

              name = use[i];

              plugin = allPlugins[name];

              if ( plugin )

              {

                plugins.push( plugin );

              }

            }

          }



          this.each(function () {

              var childNodes = this.childNodes,

                  i = childNodes.length;

              while ( i-- )

              {

                var n = childNodes[i];

                if ( n.nodeType == 3 )

                {

                  var html = n.nodeValue;

                  if ( html.length>1  &&  /\S/.test(html) )

                  {

                    var htmlChanged,

                        preHtml;

                    tmpCont = tmpCont || $('<div/>')[0];

                    tmpCont.innerHTML = '';

                    tmpCont.appendChild( n.cloneNode(false) );

                    var tmpContNodes = tmpCont.childNodes;



                    for (var j=0, plugin; (plugin = plugins[j]); j++)

                    {

                      var k = tmpContNodes.length,

                          tmpNode;

                      while ( k-- )

                      {

                        tmpNode = tmpContNodes[k];

                        if ( tmpNode.nodeType == 3 )

                        {

                          html = tmpNode.nodeValue;

                          if ( html.length>1  &&  /\S/.test(html) )

                          {

                            preHtml = html;

                            html = html

                                      .replace( /&/g, '&amp;' )

                                      .replace( /</g, '&lt;' )

                                      .replace( />/g, '&gt;' );

                            html = $.isFunction( plugin ) ? 

                                        plugin( html ):

                                        html.replace( plugin.re, plugin.tmpl );

                            htmlChanged = htmlChanged || preHtml!=html;

                            preHtml!=html  &&  $(tmpNode).after(html).remove();

                          }

                        }

                      }

                    }

                    html = tmpCont.innerHTML;

                    if ( callback )

                    {

                      html = $('<div/>').html(html);

                      //newLinks.push.apply( newLinks,  html.find('a').toArray() );

                      newLinks = newLinks.concat( html.find('a').toArray().reverse() );

                      html = html.contents();

                    }

                    htmlChanged  &&  $(n).after(html).remove();

                  }

                }

                else if ( n.nodeType == 1  &&  !/^(a|button|textarea)$/i.test(n.tagName) )

                {

                  arguments.callee.call( n );

                }

              };

          });

          callback  &&  callback( $(newLinks.reverse()) );

          return this;

        };



  linkify.plugins = {

      // default mailto: plugin

      mailto: {

          re: /(^|["'(\s]|&lt;)([^"'(\s&]+?@.+\.[a-z]{2,7})(([:?]|\.+)?(\s|$)|&gt;|[)"',])/gi,

          tmpl: '$1<a href="mailto:$2">$2</a>$3'

        }

    };



})(jQuery);