15 lines
434 B
Factor
15 lines
434 B
Factor
! Copyright (C) 2009,2011 Maxim Savchenko, Slava Pestov, Doug Coleman.
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! See http://factorcode.org/license.txt for BSD license.
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USING: ascii grouping kernel math.parser sequences
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strings.parser lexer math ;
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IN: byte-arrays.hex
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ERROR: odd-length-hex-string string ;
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SYNTAX: HEX{
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"}" parse-tokens concat
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[ blank? ] reject
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dup length even? [ odd-length-hex-string ] unless
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2 <groups> [ hex> ] B{ } map-as
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suffix! ;
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