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@expansion{} (→): Indicating an ExpansionWhen an expression is a macro call, it expands into a new expression.
You can indicate the result of the expansion with the
@expansion{} command.
The @expansion{} command is displayed as ‘→’
in Info and as a long arrow with a flat base in the printed output.
For example, the following
@lisp
(third '(a b c))
@expansion{} (car (cdr (cdr '(a b c))))
@result{} c
@end lisp
produces
(third '(a b c))
→ (car (cdr (cdr '(a b c))))
⇒ c
which may be read as:
(third '(a b c))expands to(car (cdr (cdr '(a b c)))); the result of evaluating the expression isc.
Often, as in this case, an example looks better if the
@expansion{} and @result{} commands are indented
five spaces.
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