$*
Match zero or more tokens LHS operator
The $* operator is
a wildcard operator. It is used to match zero or
more tokens in the workspace. One handy use for it
is to honor a pair of angle braces, regardless of
whether that pair has something between them. The
following LHS, for example, will match <>, or <wash>, or even
<some.big.long.domain>:
R < $* > ...
But because $* can
match an unexpected number of tokens, it is wise to
understand minimum matching before using it. See
Minimum Matching on page 660 for
a discussion of minimum matching and the backup and
retry process.
Note that the $*
operator can be used only on the LHS of rules, and
can be referenced by an RHS $digit
operator.
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