bytes>hex-string ( bytes -- hex-string )

Vocabulary

math.parser

Inputs

bytes

a sequence

Outputs

hex-string

a string

Word description

Converts a sequence of bytes (integers in the range [0,255]) to a string of hex numbers in the range [00,ff].

Examples

USING: math.parser prettyprint ; B{ 1 2 3 4 } bytes>hex-string .
"01020304"

Notes

Numbers are zero-padded on the left.

See also

hex-string>bytes

Definition

USING: kernel math sequences sequences.private strings ;

IN: math.parser

: bytes>hex-string ( bytes -- hex-string )
    dup length 2 * 48 <string> [
        [
            [ 16 /mod [ >digit ] bi@ ] [ 2 * dup 1 + ]
            [ [ set-nth-unsafe ] curry bi-curry@ bi* ] tri*
        ] curry each-index
    ] keep ;