From: Paul Lutus <nospam@...>
Date: 2006-11-12T09:30:08+09:00
Subject: Re: parsing html table cells

lrlebron@gmail.com wrote:

> I am trying to parse an html page that has strings that looks like this
> 
> <tr class="bg2" height="17" valign="middle" align="right"><td
> align="left"></td><td>4</td><td>47</td><td>1</td><td>19</td></tr> to
> get the numbers inside the table cells.
> 
> I would to end up with a simple string that looks like this (for this
> row)
> 4 47 1 19
> 
> The number of table cells in a row that have numbers may vary for
> different rows.

Try this:

-------------------------------------

#!/usr/bin/ruby -w

table = "<table><tr>" +
"<td>4</td><td>47</td><td>1</td><td>19</td></tr>" +
"<tr><td>7</td><td>49</td><td>4</td><td>39</td></tr>" +
"<tr><td>14</td><td>17</td><td>19</td><td>21</td>" +
"</tr></table>"

rows = table.scan(%r{<tr>.*?</tr>})

rows.each do |row|
   fields = row.scan(%r{<td>(.*?)</td>})
   puts fields.join(",")
end

-------------------------------------

Output:

4,47,1,19
7,49,4,39
14,17,19,21

-- 
Paul Lutus
http://www.arachnoid.com