On Thursday 20 September 2007 20:51:14 Alessandro Warth wrote: > > Also, if (like in PEG), the grammar does not support "empty" rules, you > > can > > make the A' non-terminals in the A rule optional. This has the same > > effect. > > PEGs do support empty rules - take a look at the inductive definition of > PEGs in Bryan Ford's POPL'04 paper, at > http://pdos.csail.mit.edu/~baford/packrat/popl04/peg-popl04.pdf
Ah yes, I suspected they should, I just didn't find the concrete syntax in the jolt implementation to write one then :) Hans > > Cheers, > Alex > -- A liberal is a person whose interests aren't at stake at the moment -- Willis Player Hans Schippers Research Assistant of the Research Foundation - Flanders (FWO - Vlaanderen) http://www.win.ua.ac.be/~hschipp/ Formal Techniques in Software Engineering (FoTS) University of Antwerp Middelheimlaan 1 2020 Antwerpen - Belgium Phone: +32 3 265 38 71 Fax: +32 3 265 37 77 _______________________________________________ fonc mailing list [email protected] http://vpri.org/mailman/listinfo/fonc
