From: Ronald Fischer <ronald.fischer@...>
Date: 2007-06-25T23:40:42+09:00
Subject: Syntax error with array interpolation

Below is a code snippet which gives me some headache:

def headache
  yield(*(foo(1)),"bar")
end

def foo(n)
  [n,n+2,n+5]
end

headache { |a,b,c,d| puts a.to_s; puts b.to_s; puts c.to_s; puts d }

I had expected that this would print

1
3
6
bar


But Ruby 1.8.5 complains:

./headache.rb: line 1: def: command not found
./headache.rb: line 2: syntax error near unexpected token `*'
'/headache.rb: line 2: `  yield(*(foo(1)),"bar")

and Ruby 1.8.6 complains:

H:/tmp/headache.rb:2: syntax error, unexpected tSTRING_BEG, expecting
tAMPER
  yield(*(foo(1)),"bar")                 ^
H:/tmp/headache.rb:2: syntax error, unexpected ')', expecting kEND
H:/tmp/headache.rb:10: syntax error, unexpected $end, expecting kEND


There must something be wrong with the way I'm doing array
interpolation,
but I can't spot the error....

Ronald
-- 
Ronald Fischer <ronald.fischer@venyon.com>
Phone: +49-89-452133-162