lib/twitter_cldr/utils.rb
# encoding: UTF-8
# Copyright 2012 Twitter, Inc
# http://www.apache.org/licenses/LICENSE-2.0
module TwitterCldr
module Utils
autoload :CodePoints, 'twitter_cldr/utils/code_points'
autoload :FileSystemTrie, 'twitter_cldr/utils/file_system_trie'
autoload :RangeSet, 'twitter_cldr/utils/range_set'
autoload :RegexpAst, 'twitter_cldr/utils/regexp_ast'
autoload :RegexpSampler, 'twitter_cldr/utils/regexp_sampler'
autoload :ScriptDetector, 'twitter_cldr/utils/script_detector'
autoload :ScriptDetectionResult, 'twitter_cldr/utils/script_detector'
autoload :Trie, 'twitter_cldr/utils/trie'
autoload :YAML, 'twitter_cldr/utils/yaml'
class << self
# adapted from: http://snippets.dzone.com/posts/show/11121 (first comment)
def deep_symbolize_keys(arg)
case arg
when Array
arg.map { |elem| deep_symbolize_keys(elem) }
when Hash
Hash[arg.map { |k, v| [k.is_a?(String) ? k.to_sym : k, deep_symbolize_keys(v)] }]
else
arg
end
end
def deep_merge!(first, second)
if first.is_a?(Hash) && second.is_a?(Hash)
second.each { |key, val| first[key] = deep_merge!(first[key], val) }
elsif first.is_a?(Array) && second.is_a?(Array)
second.each_with_index { |elem, index| first[index] = deep_merge!(first[index], elem) }
else
return second
end
first
end
def deep_merge_hash(first, second, &block)
target = first.dup
second.keys.each do |key|
if second[key].is_a?(Hash) && first[key].is_a?(Hash)
target[key] = deep_merge_hash(target[key], second[key], &block)
next
end
target[key] = block_given? ? yield(first[key], second[key]) : second[key]
end
target
end
def compute_cache_key(*pieces)
if pieces && pieces.size > 0
pieces.join("|").hash
else
0
end
end
def traverse_hash(hash, path, &block)
return if path.empty?
path.inject(hash) do |current, key|
return unless current.is_a?(Hash)
if block
yield key, current[key]
else
current[key]
end
end
end
end
end
end