From: Sean Chittenden <sean-ruby-talk@...>
Date: 2001-08-27T22:11:40+09:00
Subject: [ruby-talk:20426] Re: handling errors without exiting


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> require 'net/http'

> h =3D Net::HTTP.new('test.host.it', 80)
> ciao =3D Array.new
> resp, data =3D h.get('/test.html', nil )
> puts "Code =3D #{resp.code}"
> puts "Message =3D #{resp.message}"
> resp.each {|key, val| printf "%-14s =3D %-40.40s\n", key, val }
> data.each_line { |line| ciao.push($2) if /(href=3D"*(http:\/\/.*?)[>" ]){=
1,}/ =3D~ line}
>=20
> begin
> 	ciao.each {|line|
> 		resp, data =3D h.get(line)
> 		p line
> 	}
>=20
> rescue Net::ProtoFatalError
> 	print "catched\n"
> end

	Why don't you test the response before you try and read?  I=20
don't think you're catching the right exception... or all of them.  If=20
you get desperate:

include ObjectSpace
ObjectSpace.each_object(Exception) do |obj|
  puts obj.puts
end

	As for your regexp, this is pulled/modified from ruby-tmpl... =20
a tad ugly, but it gets exactly what I need.  Iterate over the md to see
what you've caught in each paren:

pattern =3D '(<[Aa].*?[Hh][Rr][Ee][Ff]\s*=3D\s*)(([\'\"])((?:[^#]).*?[^\?]*=
?){0,1}(\?.*?){0,1}\3)(.*?>)'
a_tag_re =3D Regexp.new(pattern)
md =3D a_tag_re.match(returned_html)

i =3D 0
md.each do |m|
  puts i + ': ' + m
  i.succ!
end



--=20
Sean Chittenden

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