From: ts <decoux@...>
Date: 2003-11-21T00:31:05+09:00
Subject: Re: behaviour change of String#gsub(pattern) {|m| ... } for ruby 1.9/ruby2?

>>>>> "A" == Austin Ziegler <austin@halostatue.ca> writes:

A> Is there an easy way for String#gsub (et al.) to check the arity of
A> the provided block?

svg% cat b.rb
#!/usr/bin/ruby
def a(&block)
   p block.arity
end

a {|x| }
a {|x, y| }
svg% 

svg% b.rb
1
2
svg% 


Guy Decoux