From: 7stud -- <bbxx789_05ss@...>
Date: 2009-04-27T10:08:33+09:00
Subject: Re: How to parse a "line"?

Martin Sharon wrote:
> Thank you Todd, but the number of the keywords are dynamic.
> 
> and the array size is not fixed until program reads the first keywords
> of the input line.
>


Explain why these solutions won't work for you:

strs = ["6 toyota bmw honda GM Ford", "3 tokyo newyork paris"]

strs.each do |str|
  puts "1) split with subscripts:"
  p str.split()[1..-1]

  puts "2) split with parallel assignment:"
  first, *therest = str.split()
  p therest

  puts
end

--output:--
1) split with subscripts:
["toyota", "bmw", "honda", "GM", "Ford"]
2) split with parallel assignment:
["toyota", "bmw", "honda", "GM", "Ford"]

1) split with subscripts:
["tokyo", "newyork", "paris"]
2) split with parallel assignment:
["tokyo", "newyork", "paris"]

-- 
Posted via http://www.ruby-forum.com/.