Beefy Boxes and Bandwidth Generously Provided by pair Networks
more useful options

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??


I am trying to learn WWW::Scripter to scrape some JS intensive pages. I tried evaling the JQuery.js from a page received with $mech->get. Since that didn't work I tried a simple example and this doesn't work either. Maybe JQuery needs a loaded DOM for this to work?

#!/usr/bin/env perl use warnings; use strict; use HTTP::Cookies; use WWW::Scripter; my $cookie_jar = HTTP::Cookies->new(); my $mech = WWW::Scripter->new( agent => 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident +/5.0', cookie_jar => $cookie_jar, ); $mech->get(" +min.js"); my $jquery = $mech->content; $mech->use_plugin( JavaScript => engine => 'SpiderMonkey', ); $mech->eval($jquery);

I get "c has no properties at WWW::Scripter::Plugin::JavaScript::SpiderMonkey line 165"

Any help greatly appreciated...

Update 20120306

To further expand on the comment below by tobyink, the fact that it can't parse JQuery is by no means a limitation of WWW::Scripter, it just means that I was trying to use a great tool for the wrong job.

In my particular case I need a full-blown rendering engine so there is not getting around the use of something like Gecko, whether it's using Xvfb, Crowbar, offscreen or something along those lines. I would definitively try to keep everything within WWW::Mechanize, after all, the final scraping is very effective with the tools provided in that namespace, so probably WWW::Mechanize::Firefox and Xvfb is the way to go. Expect another update when I get one of these working...

In reply to WWW::Scripter eval of JQuery by ait

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others avoiding work at the Monastery: (7)
    As of 2020-02-16 18:30 GMT
    Find Nodes?
      Voting Booth?
      What numbers are you going to focus on primarily in 2020?

      Results (70 votes). Check out past polls.