From: Jim Burgess <jack.zelig@...>
Date: 2009-10-13T16:39:41+09:00
Subject: Re: Making one reg ex out of two

> This looks like an XML string. Did course_info come from an XML
> document? An XML parser like Hpricot or Nokogiri would be an
> improvement.

Quick update:
Just installed and followed a quick tutorial on Hpricot.
While effectively accomplishing the same task, this parser makes the 
code much easier to read. I can now write:

doc = Hpricot.parse(File.read("courses.xml"))
(doc/:course).each do |course|
  if (course/:date).inner_html.match "#{date}"
    groups_that_had_lessons_this_month << (course/:title).inner_html
  end
end

as opposed to this (or worse):

File.open("courses.txt", 'r') do |datei|
  datei.readlines.select do |line|
    if line.match "#{date}"
      groups_that_had_lessons_this_month << line[ /<title>([^<]+)/, 1 ]
    end
  end
end

Thanks for the recommendation, and thanks everyone else for the answers 
too.



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