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class Fixnum
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def is_numeric?
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true
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end
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end
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class String
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def is_numeric?
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Float self rescue false
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end
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def pretty_url
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mb_chars.normalize(:kd)
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.gsub(/[^\x00-\x7F]/n, '')
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.gsub(/[^a-z_0-9 -]/i, '')
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.gsub(/ +/, '_')
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.downcase.to_s
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end
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end
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