On Oct 7, 6:01 pm, Becca Girl <[EMAIL PROTECTED]>
wrote:
> Hi.
>
> I've got a file that contains a table that looks like this:
>
> <table>
> <tr><td>column title a</td><td>column title b</td></tr>
> <tr><td>row 1 a</td><td>row 1 b</td></tr>
> <tr><td>row 2 a</td><td>row 2 b</td></tr>
> <tr><td>row 3 a</td><td>row 3 b</td></tr>
> <tr><td>row 4 a</td><td>row 4 b</td></tr>
> </table>
>
> I need to read the rows starting with the second table row, which
> excludes the title of the column. Then I need to read each column's
> value.
>
> How can I loop through each row to get each value that I need?
Who needs loops when you have XPath? You can grab an entire column in
one fell swoop.
require 'xml'
doc = XML::Parser.string(html).parse
column1 = doc.find('/table/tr[position()>1]/td[1]/text()')
puts column1.to_a
You'll need libxml for that (gem install libxml-ruby). Hpricot is not
XPath compliant enough.
See my XPath article here:
http://markthomas.org/2008/08/22/improve-your-XML-parsing-with-XPath/
-- Mark.
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