From: Roland Jesse <stramm@...>
Date: 2001-09-11T21:19:21+09:00
Subject: [ruby-talk:21080] html-parser fails at images with given height

Hi,

using the HTMLParser from
<http://www.jin.gr.jp/~nahi/Ruby/html-parser/README.html> shows an
error when parsing the following simple html text:

-----------------------------------------------------
<html>
<body>
  <p>Here comes an image: <img src="dummy.jpg" height="42" /></p>
  <p>Above is an image.</p>
</body>
</html>
-----------------------------------------------------

Parsing that with the following code:

-----------------------------------------------------
#!/usr/bin/env ruby

require 'html-parser'
require 'formatter'

file = File.open( "dummy.html")
data = file.read
file.close

w = DumbWriter.new
f = AbstractFormatter.new( w)
p = HTMLParser.new( f)
p.feed( data)
p.close
-----------------------------------------------------

results in:

/usr/local/lib/ruby/site_ruby/1.6/html-parser.rb:412:in `Integer': invalid value for Integer: ""42"" (ArgumentError)
        from /usr/local/lib/ruby/site_ruby/1.6/html-parser.rb:412:in `do_img'
        from /usr/local/lib/ruby/site_ruby/1.6/html-parser.rb:395:in `each'
        from /usr/local/lib/ruby/site_ruby/1.6/html-parser.rb:395:in `do_img'
        from /usr/local/lib/ruby/site_ruby/1.6/sgml-parser.rb:281:in `send'
        from /usr/local/lib/ruby/site_ruby/1.6/sgml-parser.rb:281:in `handle_starttag'
        from /usr/local/lib/ruby/site_ruby/1.6/sgml-parser.rb:233:in `finish_starttag'
        from /usr/local/lib/ruby/site_ruby/1.6/sgml-parser.rb:208:in `parse_starttag'
        from /usr/local/lib/ruby/site_ruby/1.6/sgml-parser.rb:89:in `goahead'
        from /usr/local/lib/ruby/site_ruby/1.6/sgml-parser.rb:58:in `feed'
        from ./dummy.rb:14

My question now is: Does anybody know of a HTML parser out there that
can handle (simply ignore them would be enough) <img> tags?

  Roland