[antlr-interest] Rewriting Repeatable Prefix Operators To Nested AST Structure
Jim Idle
jimi at temporal-wave.com
Thu Oct 2 12:31:06 PDT 2008
On Thu, 2008-10-02 at 12:24 -0700, Randall R Schulz wrote:
> Hi,
>
> I have a couple of productions that use a prefix operator that may be
> repeated arbitrarily. One of them (negation) just has the operator
> symbol. The other has a keyword (two different keywords, actually)
> followed by an identifier.
>
> For example, with the negation operator, this:
>
> ---p
rule : NEG^ rule
| next_expr_in_precedence_stack
;
See things like the ^ operator in example grammars for right associative
things.
Jim
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