boxes/test/170_forbid_blank_box.cfg

BOX blank1

sample
    (blank)
ends

shapes {
    w (" ")
}

elastic (
    w
)

END blank1

# -------------------------------------------------------

BOX blank2

sample
    (blank)
ends

shapes {
    w (" 	", " 	")    # mix of tabs and spaces
    e ("   ", "   ")      # space only
    s ("	", "	")    # tab only
}

elastic (
    w, e, s
)

END blank2