From: Amishera Amishera <amishera2007@...>
Date: 2010-04-10T10:21:55+09:00
Subject: global variable in ruby

Trying to use some global variable

 $buffer = Array.new
  4
  5 def save_log(data, file_name)
  6         puts 'save log called '+file_name
  7         open(file_name, 'w') { |f| f.write(data) }
  8 end
  9
 10 def get_citations_from_page(data, start_point, end_point)
 11         citations = get_substring_within_inclusive(data,
start_point, end_point)
 12         u_arr = getURLsFromPage('http://www.xxxx.com/', citations)
 13         u_arr.each {
 14                 |t|
 15                 if
(!beginsWith(t[1],'http://www.xxxx.com//gp/reader'))
 16                         buffer.push t[0]+'%%%'+t[1]
 17                 end
 18         }
 19 end

getting error:

xxxx_citations.rb:16:in `get_citations_from_page': undefined local
variable or method `buffer' for main:Object (NameError)
  from xxxx_citations.rb:13:in `each'
  from xxxx_citations.rb:13:in `get_citations_from_page'
  from xxxx_citations.rb:26:in `retrieve_citations'
  from xxxx_citations.rb:46
  from xxxx_citations.rb:42:in `open'
  from xxxx_citations.rb:4

Why? How to solve it?
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