1 ! Copyright (C) 2010 John Benediktsson
2 ! See https://factorcode.org/license.txt for BSD license
4 USING: ascii assocs io.encodings.ascii io.files kernel math
5 sequences sequences.extras sets sorting system ;
8 : make-anagram-hash ( strings -- assoc )
11 [ length 1 > ] filter-values ;
13 HOOK: dict-words os ( -- seq )
16 "/usr/share/dict/words" ascii file-lines [ >lower ] map ;
18 MEMO: dict-anagrams ( -- assoc )
19 dict-words make-anagram-hash ;
21 : anagrams ( str -- seq/f )
22 >lower sort dict-anagrams at ;
24 : most-anagrams ( -- seq )
25 dict-anagrams values all-longest ;
27 : longest-anagrams ( -- seq )
28 dict-anagrams [ keys all-longest ] keep '[ _ at ] map ;