From: Peter Szinek <peter@...>
Date: 2007-03-05T21:11:42+09:00
Subject: Re: ruby noob

mosfet wrote:
> Hi,
> 
> I would like to parse a very simple html(index_msg.htm) file described 
> below :
> 
> <tr>
>   <td>WM_ACTIVATE</td>
>   <td>0x0006</td>
>   <td></td>
>   <td>0x0000</td>
>   <td>WM_NULL</td>
> </tr>
> <tr>
>   <td>WM_ACTIVATEAPP</td>
>   <td>0x001C</td>
>   <td></td>
>   <td>0x0001</td>
>   <td>WM_CREATE</td>
> </tr>
> ...
>  I would like to parse this file and to extract information like this :
> 
> enum foo
> {
>   eWM_ACTIVATE = 0x0006,
>   eWM_ACTIVATEAPP = 0x0001,
>  ...
> };
> 
> I am starting with this :
> 
> 
> fileIn  = File.open("C:/WIKI_CE/index_msg.htm", "r")
> fileOut = File.new("C:/WIKI_CE/enumWmMsg.h", "w")
> 
> begin
>     while (line = fileIn.readline)
>         line.chomp
>         $stdout.print line
>     end
> rescue EOFError
>     fileIn.close
>     fileOut.close
> end

This should get you started:

=====================================================================
require 'rubygems'
require 'scrubyt'

data = Scrubyt::Extractor.define do
   fetch('input.html')

   record do
     var_name 'WM_ACTIVATE'
     code     '0x0006'
   end
end

result = data.to_xml.to_s
names = result.scan(/var_name>(.+?)<\/var_name/).flatten
values = result.scan(/code>(.+?)<\/code/).flatten
pairs = names.zip(values)

pairs.each do |name, value|
   puts "e#{name} = #{value}"
end
=====================================================================

The XML to array code kind of sucks, in the next version of scRUBYt! you 
will be able to output the result directly to a hash (or CSV or YAML or 
some other, more friendly format for such a task).

Cheers,
Peter
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