From: Martin DeMello <mdemello@...>
Date: 2001-12-17T18:36:39+09:00
Subject: [ruby-talk:28746] Re: Scanning for delimited substrings

Martin DeMello <mdemello@ruf.rice.edu> wrote:
> Bill Kelly <billk@cts.com> wrote:

>> How about:
>>  scan(/<<.*?>>|(?:.(?!<<))+/)

>>  irb(main):005:0> "fooa<<bar".scan(/<<.*?>>|(?:.(?!<<.*?>>))+/)
>>  ["fooa<<bar"]

Misbehaved on a few test cases - the problem was that it swallowed the last
character in the string before a delimiter pair. This one worked:

m = "#{Regexp.quote(l)}.*?#{Regexp.quote(r)}"
s.scan(/#{m}|(?:.(?!#{m}))*./m)

(changed the bit at the end from + to *.)

-- 
Martin DeMello