robinsloan · September 5, 2013 17:14
diff --git a/gsub-block.rb b/gsub-block.rb
 # http://batsov.com/articles/2013/08/30/using-gsub-with-a-block/?utm_source=rubyweekly&utm_medium=email

 # num will be passed the string '12'

 "Apollo 12".gsub(/\d+/) { |num| num.to_i.next }
 # => "Apollo 13"

 # string yielded to block is always entire match; can't do matched groups at |m1, m2| etc.
	# http://batsov.com/articles/2013/08/30/using-gsub-with-a-block/?utm_source=rubyweekly&utm_medium=email

	# num will be passed the string '12'

	"Apollo 12".gsub(/\d+/) { \|num\| num.to_i.next }
	# => "Apollo 13"

	# string yielded to block is always entire match; can't do matched groups at \|m1, m2\| etc.