1 ! Copyright (c) 2008 Slava Pestov
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: sequences math.parser io io.streams.byte-array
4 io.encodings.binary io.files kernel ;
9 GENERIC: checksum-bytes ( bytes checksum -- value )
11 GENERIC: checksum-stream ( stream checksum -- value )
13 GENERIC: checksum-lines ( lines checksum -- value )
15 M: checksum checksum-bytes >r binary <byte-reader> r> checksum-stream ;
17 M: checksum checksum-stream >r contents r> checksum-bytes ;
19 M: checksum checksum-lines >r B{ CHAR: \n } join r> checksum-bytes ;
21 : checksum-file ( path checksum -- value )
22 >r binary <file-reader> r> checksum-stream ;
24 : hex-string ( seq -- str )
25 [ >hex 2 CHAR: 0 pad-left ] { } map-as concat ;