From: Stefan Rusterholz <apeiros@...>
Date: 2009-01-29T01:13:42+09:00
Subject: Re: how can I switch over an array ?

Tsunami Scripter wrote:
> I have the following code snippet :
> 
> def call(char,value)
>   case char
>     when " ","#","!","@","$","%","^","&","*","(",")","{","}","
> [","]","\'","\"","<",">",",",".","?",";","\n","\r"
>        @map[char].call(value)
>     when "digit"
>        @map[char].call(value)
>     when "char"
>        @map[char].call(value)
>     else
>        puts "don't know what to do with #{char} and #{value}"
>     end
> end
> 
> can the first when be written in a simpler way ?

Enjoy:
@map = Hash.new { |map, char| proc { |value| puts "don't know what to do 
with #{char} and #{value}" } }.merge(your_original_map)
@map[char][value]

Regards
Stefan
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