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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Caesar-cipher/Retro/caesar-cipher.retro Normal file
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{{
variable offset
: rotate ( cb-c ) tuck - @offset + 26 mod + ;
: rotate? ( c-c )
dup 'a 'z within [ 'a rotate ] ifTrue
dup 'A 'Z within [ 'A rotate ] ifTrue ;
---reveal---
: ceaser ( $n-$ )
!offset dup [ [ @ rotate? ] sip ! ] ^types'STRING each@ ;
}}
( Example )
"THEYBROKEOURCIPHEREVERYONECANREADTHIS" 3 ceaser ( returns encrypted string )
23 ceaser ( returns decrypted string )