[article Coniditional Phrase Test
    [quickbook 1.7]
]

[def __defined__]

[? __defined__ This should show]
[? __undefined__ This should not show]

[?! __defined__ This should also not show]
[?! __undefined__ But this should show]

[? ! __undefined__ This shouldn't show]

[def !weird_macro!]
[? !weird_macro! Weird macro is defined]

The should be no sp[?__undefined__ just some junk]ace inserted.

[? __defined__ [*Bold text]]