From: "Michael W. Ryder" <_mwryder@...>
Date: 2008-01-22T04:14:59+09:00
Subject: Is there an easier way to get a match before a position in a string?

I am trying to find an easier way to split a string into printable 
lines.  I could use the method of checking for a space using a loop and 
going back from the desired length or I could use the following:

def strbrk(str, len)
   if str.length <= len
     return str.length
   end
   tmp = str[0...len].reverse
   x = tmp =~ / /
   if x == nil
     return -1
     else
       return len - x
   end
end

I could not find any way to get a regexp to search from the end of the 
string which would have eliminated the need to reverse the string.