From: Brian Candler <b.candler@...>
Date: 2009-06-23T03:59:57+09:00
Subject: Re: formatting a listing

George George wrote:
> but it prints out the same old original file without modifications

It works for me (I just copy-pasted your code and changed the 
input/output filenames).

The simplest way to debug this is to add some extra debugging statements 
to see if the variables contain what you expect, for example:

  ...
  rows = src.split("\n\n").collect { |b| b.split("\n") }
  p rows    # << debugging statement

or more verbosely,

  STDERR.puts "rows = #{rows.inspect}"

At a guess, perhaps you're on a Windows platform and the paragraphs are 
terminated by \r\n\r\n instead of \n\n. Try:

  rows = src.split(/\r?\n\r?\n/).collect ... etc

In a regular expression, \r? means 0 or 1 occurrences of \r
-- 
Posted via http://www.ruby-forum.com/.