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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Find-common-directory-path/Factor/find-common-directory-path.factor Normal file
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: take-shorter ( seq1 seq2 -- shorter )
[ shorter? ] 2keep ? ;
: common-head ( seq1 seq2 -- head )
2dup mismatch [ nip head ] [ take-shorter ] if* ;
: common-prefix-1 ( file1 file2 separator -- prefix )
[ common-head ] dip '[ _ = not ] trim-tail ;
: common-prefix ( seq separator -- prefix )
[ ] swap '[ _ common-prefix-1 ] map-reduce ;