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class Fixnum
# Allows #succ to take _n_ increments.
#
# 3.succ(2) #=> 5
#
# CREDIT: Trans
def succ(n=1)
self + n
end
# Provides #pred as the opposite of #succ.
#
# 3.pred(2) #=> 1
#
# CREDIT: Trans
def pred(n=1)
self - n
end
end
class String
alias_method :succ1, :succ
# Allows #succ to take _n_ step increments.
#
# "abc".succ #=> "abd"
# "abc".succ(4) #=> "abg"
# "abc".succ(24) #=> "aca"
#
# CREDIT: Trans
def succ(n=1)
s = self
n.times { s = s.succ1 }
s
end
end
|
