Hi Christopher, I like Jeffrey's point that Marpa is so powerful it allows you to use the most natural syntax / phrasing in the SLIF.
The correct English for overriding a priority is indeed "override priority", and it certainly feels intuitive to me. "priority override" could easily be read as prioritizing an override, whatever that may mean. If one wanted to enact an intuition of making priority parametric, I would intuitively understand a syntax that is more suggestive, e.g. priority<weak> priority<normal> priority<override> or some more Perl-near syntax, such as prirority => weak priority => override(strong) Of course, that's entirely a personal preference. Greetings, Deyan On Tue, May 13, 2014 at 4:06 AM, Christopher Layne <[email protected]>wrote: > On May 12, 2014, at 1853 PT, Jeffrey Kegler < > [email protected]> wrote: > > > So call the tie-breaking priority scheme (the current one), "weak > priority". And call the other, which never accepts a lower priority token > over a higher one, regardless of the length, "strong priority". > > > > My question to the list is, given that I've already used the priority > adverb to mean "weak priority", what nomenclature should I use? My first > inclination is to use the names I am using in this post. That is, > >> :lexeme ~ <say keyword> priority => 1 > > continues to mean "weak" priority, and so is a synonym for > >> :lexeme ~ <say keyword> weak priority => 1 > > but > >> :lexeme ~ <say keyword> strong priority => 1 > > now means "strong priority". > > Within programming, I've always subscribed to > <noun|subject|thing>_<verb|adjective> etc. I'd personally go with: > > priority weak | priority > priority normal > prioriry strong > > Alternatively, as Ron said, but slightly different: > > priority > priority override > > All are sub-types of priorities, and priority (nothing) maps to priority > weak. priority normal is there as some kind of placeholder, but otherwise > presently unused. > > -cl > > -- > You received this message because you are subscribed to the Google Groups > "marpa parser" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "marpa parser" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
