hex-string? ( str -- ? )

Vocabulary

hex-strings

Inputs

str

a string

Outputs

?

a boolean

Word description

Tests if a string is a valid hexadecimal string.

Examples

USING: hex-strings prettyprint ; "abcdef" hex-string? .
t

USING: hex-strings prettyprint ; "meow" hex-string? .
f

Definition

USING: sequences ;

IN: hex-strings

: hex-string? ( str -- ? ) [ hex-digit? ] all? ;