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memetor/replace_zenkaku_with_hankaku.rb

Created August 17, 2014 21:23
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replace_zenkaku_with_hankaku.rb
ZEN_KAKU_NUM = %w(０ １ ２ ３ ４ ５ ６ ７ ８ ９)
HAN_KAKU_MAP = ZEN_KAKU_NUM.map.with_index {|n, i| Hash[n, i.to_s]}.reduce(&:merge)
%(０１２０x).gsub(/[#{ZEN_KAKU_NUM}]/, HAN_KAKU_MAP)
# => 0120x
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