8 lines
278 B
Text
8 lines
278 B
Text
encode = (str, offset = 75) ->
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str.replace /(.)\1*/g, (w) ->
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w[0] + String.fromCharCode(offset+w.length)
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decode = (str, offset = 75) ->
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str.split('').map((w,i) ->
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if not (i%2) then w else new Array(+w.charCodeAt(0)-offset).join(str[i-1])
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).join('')
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