Hello world.
"); FILE If you pass pQuery a string that ends with .html and contains no whitespace, pQuery will assume it is the name of a file containing html and will read the contents and parse the HTML into a new DOM. pQuery("my/webpage.html"); Selector String You can create a pQuery object with a selector string just like in jQuery. The problem is that Perl doesn't have a global document object lying around like JavaScript does. One thing you can do is set the global variable, $pQuery::document, to a pQuery::DOM document. This will be used by future selectors. Another thing you can do is pass the document to select on as the second parameter. (jQuery also has this second, context parameter). pQuery("table.mygrid > td:eq(7)", $dom); pQuery Object You can create a new pQuery object from another pQuery object. The new object will be a shallow copy. my $pquery2 = pQuery($pquery1); Array Reference You can create a pQuery object as an array of anything you want; not just pQuery::DOM elements. This can be useful to use the "each" method to iterate over the array. pQuery(\ @some_array); No Arguments Calling pQuery with no arguments will return a pQuery object that is just an empty array reference. This is useful for using it to call class methods that don't need a DOM object. my $html = pQuery->get("http://google.com")->content; PQUERY(@list_of_pQuery_constructor_args) The PQUERY constructor takes a list of any of the above pQuery forms and creates a PQUERY object with one pQuery object per argument. METHODS This is a reference of all the methods you can call on a pQuery object. They are almost entirely ported from jQuery. "pquery()" Returns the version number of the pQuery module. "size()" Returns the number of elements in the pQuery object. "length()" Also returns the number of elements in the pQuery object. "each($sub)" This method takes a subroutine reference and calls the subroutine once for each member of the pQuery object that called "each". When the subroutine is called it is passed an integer count starting at 0 at incremented once for each call. It is also passed the current member of the pQuery object in $_. pQuery("td", $dom)->each(sub { my $i = shift; print $i, " => ", pQuery($_)->text(), "\n"; }); The "each" method returns the pQuery object that called it. "EACH($sub)" This method can only be called on PQUERY objects. The sub is called once for every pQuery object within the PQUERY object. If you call "each()" on a PQUERY object, it iterates on all the DOM objects of each pQuery object (as you would expect). "find($selector)" This method will search all the pQuery::DOM elements of the its caller for all sub elements that match the selector string. It will return a new pQuery object containing all the elements found. my $pquery2 = $pquery1->find("h1,h2,h3"); "html() html($html)" This method is akin to the famous JavaScript/DOM function "innerHTML". If called with no arguments, this will return the the inner HTML string of the first DOM element in the pQuery object. If called with an HTML string argument, this will set the inner HTML of all the DOM elements in the pQuery object. "toHtml()" This extremely handy method is not ported from jQuery. Maybe jQuery will port it back some day. :) This function takes no arguments, and returns the outer HTML of the first DOM object in the pQuery object. Outer HTML means the HTML of the current object and its inner HTML. For example: pQuery('I like pie
')->toHtml; returns:I like pie
while: pQuery('I like pie
')->html(); returns: I like pie "end()" Revert the most recent 'destructive' operation, changing the set of matched elements to its previous state (right before the destructive operation). This method is useful for getting back to a prior context when chaining pQuery methods. pQuery("table", $dom) # Select all the tables ->find("td") # Select all the tds ->each(sub { ... }) # Do something with the tds ->end() # Go back to the tables selection ->each(sub { ... }); # Do something with the tables "get($index) get($url)" If this method is passed an integer, it will return that specific element from the array of elements in the pQuery object. Givn a URL, this method will fetch the HTML content of the URL and return a HTML::Response object. my $html = pQuery->get("http://google.com")->content; "index($elem)" This method returns the index number of its argument if the elem is in the current pQuery object. Otherwise it returns -1. "reset()" This method releases resources associated with pQuery and prevents memory leaks. UNDER CONSTRUCTION This module is still being written. The documented methods all work as documented (but may not be completed ports of their jQuery counterparts yet). The selector syntax is still very limited. (Single tags, IDs and classes only). Version 0.02 added the pQuery::DOM class which is a huge improvement, and should facilitate making the rest of the porting easy. But there is still much more code to port. Stay tuned... AUTHOR Ingy döt Net