Sha256: 692fde41c209ede9d19ae6121cb9276c420c27b0bcf23f02f2a6b97703a5497e
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Size: 1.08 KB
Versions: 9
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Stored size: 1.08 KB
Contents
module Dentaku
class FlatHash
def self.from_hash(h, key = [], acc = {})
return acc.update(key => h) unless h.is_a? Hash
h.each { |k, v| from_hash(v, key + [k], acc) }
flatten_keys(acc)
end
def self.from_hash_with_intermediates(h, key = [], acc = {})
acc.update(key => h) unless key.empty?
return unless h.is_a? Hash
h.each { |k, v| from_hash_with_intermediates(v, key + [k], acc) }
flatten_keys(acc)
end
def self.flatten_keys(hash)
hash.each_with_object({}) do |(k, v), h|
h[flatten_key(k)] = v
end
end
def self.flatten_key(segments)
return segments.first if segments.length == 1
key = segments.join('.')
key = key.to_sym if segments.first.is_a?(Symbol)
key
end
def self.expand(hash)
hash.each_with_object({}) do |(k, v), r|
hash_levels = k.to_s.split('.')
hash_levels = hash_levels.map(&:to_sym) if k.is_a?(Symbol)
child_hash = hash_levels[0...-1].reduce(r) { |h, n| h[n] ||= {} }
child_hash[hash_levels.last] = v
end
end
end
end
Version data entries
9 entries across 9 versions & 2 rubygems