typo の傾向と対策

typo 2012-02-22 kchinda@aiming-inc.com (a.k.a. @ckazu)

about me• @ckazu• • G • Rails • Rails + JS• Rails, Ruby 17

Shinjuku.rb #01

http://www.slideshare.net/ckazu/rails5

• typo

• • User.count → User.coutn

module TypoFixer def self.included(base) base.class_eval do alias_method :method_missing_without_fix_typo, :method_missing alias_method :method_missing, :method_missing_with_fix_typo end end def method_missing_with_fix_typo(name, *args) if name && method = find_method(name) $stderr.puts "WARNING: execute `#{name}` as `#{method}` for #{self}" send(method, *args) else method_missing_without_fix_typo(name, *args) end end private def find_method name name.to_s.split(//).permutation.each do |candidate| _candidate = candidate.join return _candidate if respond_to?(_candidate, true) end nil endend https://gist.github.com/1870273

require typo_fixerclass Sample include TypoFixer def some_method some value endendsample = Sample.newp sample.sme_motoehd #=> some valuep sample.sme_motoehd.reveres #=> error! https://gist.github.com/1870273

require typo_fixerclass Object include TypoFixerendp [1, 2, 3].shaflfe.joni #=> "213" https://gist.github.com/1870273

• • User.count → User.caunt

module TypoFixer def self.included(base) base.class_eval do alias_method :method_missing_without_fix_typo, :method_missing alias_method :method_missing, :method_missing_with_fix_typo end end def method_missing_with_fix_typo(name, *args) if method = find_method(name) $stdout.print "WARNING: execute `#{name}` as `#{method}`? [Y/n] " return send(method, *args) if ($stdin.getc == Y) end method_missing_without_fix_typo(name, *args) end private def find_method name self.class.instance_methods.each do |method| next unless method.size == name.size if(method.to_s.split(//) - name.to_s.split(//)).size == 1 return method end end endend https://gist.github.com/1883331

require typo_fixerclass Object include TypoFixerendp "some string".revarse #=> "gnirts emos" https://gist.github.com/1870273

• • array.flatten → array.flaten

• • car.control → car.controll

• • User.fin_dvy_id(di)

• method typo

http://suburi.herokuapp.com/

typo の傾向と対策

by Kazuyuki CHINDA on Feb 22, 2012

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typo の傾向と対策 — Presentation Transcript