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Re: Syntax extension of infix languages

Tim Hickey wrote:
 > Prolog uses an extensible infix grammar based on an extension of
 > operator grammars. A program can introduce new infix operators with
 > specified associativity, precedence, and fixity (infix, prefix, postfix).
 > The parser always translates the expressions into operator syntax
 > trees in a fairly simple manner.

For what it's worth, Cecil can do this too.

I guess that's not what Eric's looking for, but maybe someone else is.