14 lines
456 B
Groovy
14 lines
456 B
Groovy
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def caesarEncode(cipherKey, text) {
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def builder = new StringBuilder()
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text.each { character ->
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int ch = character[0] as char
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switch(ch) {
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case 'a'..'z': ch = ((ch - 97 + cipherKey) % 26 + 97); break
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case 'A'..'Z': ch = ((ch - 65 + cipherKey) % 26 + 65); break
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}
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builder << (ch as char)
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}
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builder as String
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}
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def caesarDecode(cipherKey, text) { caesarEncode(26 - cipherKey, text) }
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