Sha256: 9cd27ad71ccfed077bfe5f2f08398ea578b80385a64a7a7fd1f0a18268517292
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Contents
# http://tfletcher.com/lib/dictable.rb
# Provides dictionary/hash-like mixin for any enumerable object that yields
# key-value pairs and responds_to :update (the included Dict builds upon Array).
#
# For example:
#
# require 'dictable'
#
# a = Dict.new
#
# d[:one] = 1
# d[:two] = 2
#
# d[:one] -> 1
# d[:ten] -> nil
#
# d.keys -> [:one, :two]
# d.values -> [1, 2]
# d.to_hash -> {:two=>2, :one=>1}
#
#
module Dictable
def [](key)
each { |(k, v)| return v if k == key }
return nil
end
def []=(key, value)
update key, value
end
def keys
inject([]) { |keys, (k, v)| keys << k }
end
def values
inject([]) { |values, (k, v)| values << v }
end
def to_hash
inject({}) { |hash, (k, v)| hash.update({ k => v }) }
end
end
class Dict < Array
include Dictable
def update(key, value)
delete_if { |(k, v)| k == key }
push [ key, value ]
end
end
Version data entries
9 entries across 9 versions & 1 rubygems