unknown-format-directive? ( object -- ? )

Vocabulary

formatting

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the unknown-format-directive class.

Definition

USING: classes.tuple.private kernel slots.private ;

IN: formatting

: unknown-format-directive? ( object -- ? )
    dup tuple?
    [ layout-of 7 slot \ unknown-format-directive eq? ]
    [ drop f ] if ;