# -*- tcl -*- tcl.tk//DSL diagram//EN//1.0
proc caption {script text args} {
    block {
	block $script
	down
	text text $text
    } {*}$args
}

caption {
    box width 30 height 30 ; box width 75 height 75
} "box width 30 height 30\nbox width 75 height 75"

caption {
    box width 30 height 30 ; box width 75 height 75 with sw at [last box se]
} "box width 30 height 30\nbox width 75 height 75 with sw at \[last box se\]" \
    with nw at [[last block ne] by 30 e]