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%wildcard
ksherlock edited this page Dec 19, 2015
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The %wildcard directive specifies a wildcard token which matches any token which cannot otherwise be matched in the current context.
%wildcard ANY.
// checks for balanced parenthesis, doesn't care about the actual contents.
list ::= LPAREN any_list RPAREN.
any_list ::= ANY.
any_list ::= any_list ANY.