aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

A-M baby

Browse source
This commit is contained in:
Ingy döt Net 2013-04-10 21:29:02 -07:00
parent 764da6cbbb
commit db842d013d
19005 changed files with 197040 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

11
Task/Find-common-directory-path/Factor/find-common-directory-path.factor Normal file
View file

@ -0,0 +1,11 @@
: 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 ;