$or ( element -- )
Factor handbook » Developer tools » Help system » Writing documentation » Element types » Block elements

Prev:	$maybe ( element -- )
Next:	$quotation ( element -- )

Vocabulary
help.markup

Inputs

element

a markup element of shape { class1 class2 }

Outputs
None

Word description
Produces the text "a class1 or class2" or "an class1 or class2", depending on the first letter of either class name.

Definition

USING: combinators kernel sequences ;

IN: help.markup

: $or ( element -- )
    dup length {
        { 1 [ first ($instance) ] }
        {
            2
            [
                first2
                [ ($instance) " or " print-element ]
                [ ($instance) ] bi*
            ]
        }
        [
            drop unclip-last
            [ [ ($instance) ", " print-element ] each ]
            [ "or " print-element ($instance) ] bi*
        ]
    } case ;