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(→{{header|PARI/GP}}: rewrote solution, previous one was incomplete and incorrect) |
(coffeescript implementation) |
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(mapcat (fn [[_ n ch]] (repeat (Integer/parseInt n) ch))) |
(mapcat (fn [[_ n ch]] (repeat (Integer/parseInt n) ch))) |
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(apply str)))</lang> |
(apply str)))</lang> |
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=={{header|Coffeescript}}== |
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<lang coffeescript>encode = (str) -> |
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str.replace /(.)\1*/g, (w) -> |
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w[0] + w.length |
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decode = (str) -> |
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str.replace /(.)(\d+)/g, (m,w,n) -> |
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new Array(+n+1).join(w) |
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console.log s = "WWWWWWWWWWWWBWWWWWWWWWWWWBBBWWWWWWWWWWWWWWWWWWWWWWWWBWWWWWWWWWWWWWW" |
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console.log encode s |
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console.log decode encode s</lang> |
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<pre> |
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WWWWWWWWWWWWBWWWWWWWWWWWWBBBWWWWWWWWWWWWWWWWWWWWWWWWBWWWWWWWWWWWWWW |
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W12B1W12B3W24B1W14 |
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WWWWWWWWWWWWBWWWWWWWWWWWWBBBWWWWWWWWWWWWWWWWWWWWWWWWBWWWWWWWWWWWWWW |
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</pre> |
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=={{header|Common Lisp}}== |
=={{header|Common Lisp}}== |
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