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{ @abstract(Test of various dashes.)
Triple dash produces em-dash, for separating parts of sentence and such,
like "I know a secret --- but I won't tell".
Double dash produces en-dash, intended to use for numbers ranges,
like "10--20".
Normal single dash is a short dash, for compound words,
like "variable-width font".
You can write @@@- in cases where you really want to write
just 2 or more consecutive short dashes. E.g. @--long-option-name
(here I escaped only the 1st "-", this means that the rest
of dashes is also treated as a short dash),
or -@-long-option-name (here I escaped only the 2nd dash),
or @-@-long-option-name (here I escaped two first dashes,
which wasn't really necessary, it's sufficient to escape
either 1st or the 2nd dash), @-@-long@-option@-name
(here I escaped all dashes; this looks unnecessary ugly
in source code, but it's correct).
}
unit ok_dashes;
interface
implementation
end.
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