From: Jamis Buck <jgb3@...>
Date: 2004-11-03T06:35:59+09:00
Subject: Converting hash keys to symbols

Golf question...

Is there an elegant way of converting all of the keys of a hash to a 
symbol? The solution can assume that the existing keys are either 
strings or symbols. Also, if a key is a string, it may contain a dash 
character which must be converted to an underscore.

Something like this, only more elegant, would be nice:

   a = some_hash_of_strings_and_symbols
   new_a = Hash[*a.collect { |k,v|
     k = k.gsub(/-/,"_").intern if k.is_a?(String)
     [k,v] }.flatten]

Any takers?

- Jamis

-- 
Jamis Buck
jgb3@email.byu.edu
http://www.jamisbuck.org/jamis