v-min-length ( str n -- str )
Form validators

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Vocabulary
validators

Inputs

str	a string
n	an integer

Outputs

str

a string

Word description
Throws a validation error if the string is shorter than n characters.

Definition

USING: kernel make math math.parser sequences ;

IN: validators

: v-min-length ( str n -- str )
    over length over < [
        [ "must be at least " % # " characters" % ] "" make
        throw
    ] [ drop ] if ;