From: Vikash Kumar <vikashkumar051@...>
Date: 2007-01-15T20:46:17+09:00
Subject: Re: storing values in variables

>> def parse_html(data,tag)
>>    return data.scan(%r{<#{tag}\s*.*?>(.*?)</#{tag}>}im).flatten
>> end
> Have you looked at hpricot? (Google it.) With it, your code'll look
> something like:
> def parse_html(el, tag)
>    el.search("//#{tag}")
> end

> Get to know Array#map. Your code'll look something like:
> output = parse_html(page, 'table').map do |table|
>    parse_html(table, 'tr').map do |row|
>      parse_html(row,'td').map do |cell|
>        cell.inner_html.gsub(%r{<.*?>},"")
>      end
>    end
> end
> 
> 
>>          puts "#{"\t" * tab}}"
>>       end
>>       n += 1
>>    end
>> end
> 1. Array#each_with_index will keep track of n for you.
> 2. Array#inspect or Kernel#p will print the array in a readable format.
> 
> Otherwise, I think we need more information.
> Devin


I am new to hpricot, but I tried this
require 'watir'
require 'hpricot'
require 'open-uri'
page = Hpricot(open("http://kvcrpf.org/achievements.htm"))
def parse_html(e1,tag)
    e1.search("//#{tag}}")
end

output = parse_html(page, 'table').map do |table|
   parse_html(table, 'tr').map do |row|
     parse_html(row,'td').map do |cell|
       cell.inner_html.gsub(%r{<.*?>},"")
     end
   end
end


parse_nested_array(output[2][4])

By running this code, I get the following error:
c:/ruby/lib/ruby/gems/1.8/gems/hpricot-0.4-mswin32/lib/hpricot/traverse.rb:110:in 
`search': undefined method `[]=' for #<MatchData:0x2e25624> 
(NoMethodError)
  from test1.rb:30:in `parse_html'
  from test1.rb:33

Please help me in solving this. Also, what should be the approach to 
parse data from an open page, i.e. is there is something like page = 
Hpricot(attach("http://kvcrpf.org/achievements.htm"))


Thanks for your help
Vikash

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