28 lines
752 B
Factor
28 lines
752 B
Factor
USING: arrays io kernel math namespaces prettyprint sequences
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strings ;
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IN: hexdump-internals
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: header. ( len -- )
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"Length: " write dup unparse write ", " write >hex write "h" write terpri ;
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: offset. ( lineno -- ) 16 * >hex 8 CHAR: 0 pad-left write "h: " write ;
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: h-pad. ( digit -- ) >hex 2 CHAR: 0 pad-left write ;
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: line. ( str n -- )
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offset. [ [ h-pad. " " write ] each ] keep
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16 over length - " " <array> concat write
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[ dup printable? [ drop CHAR: . ] unless 1string write ] each
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terpri ;
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IN: hexdump
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: hexdump ( str -- str )
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#! Write hexdump to a string
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[
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dup length header.
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16 group dup length [ line. ] 2each
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] string-out ;
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: hexdump. ( str -- )
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#! Print hexdump
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hexdump write ;
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