Thanks for your interest. You might want to read my posts on their home site. The one we're discussing is http://jeffreykegler.github.io/Ocean-of-Awareness-blog/individual/2014/11/ll.html
The rest of that is devoted to describing Knuth's LR parsing and its direct offshoot in LALR. Perhaps the "non-arrival" you feel is that I do *not* go into enough detail to explain how to implement an LR parser. In particular, implementation-oriented discussions are 95% about "find the handle", and I don't even introduce the idea of what a handle is. Most discussions zoom in on this particular tree and IMHO lose the particular angle on the forest that I was trying to present. If the issue is that you really want more detail to be comfortable with the presentation, the Web and the literature abound with careful presentation of how to write LR and LALR parsers. The Wikipedia page I linked to is one of many places to start. I'm not sure this answers your question, but I hope it helps. I'm assuming somehow you'll see this reply -- the group is public, so (I believe) you don't have to sign up to read it. -- jeffrey On Thu, Nov 20, 2014 at 11:38 AM, <[email protected]> wrote: > i read most of the articles you write about Marpa, although i have never > actually used it. i find your articles to be interesting and informative. > > regarding your most recent article "Parsing: top-down versus bottom-up" > http://blogs.perl.org/users/jeffrey_kegler/2014/11/parsing-top-down-versus-bottom-up.html > , > paragraph 12 isn't english: > > Simplistically, Knuth's suggestion was, instead of fully deciding the > parse at every location, to create what I will call "subparses" -- pieces > that embody partial decisions about the parse, which are intended to be > assembled later into a larger subparses, and eventually into a full parse > tree. > > you lead us to believe you're going to tell us what Knuth's suggestion is, > but unfortunately, you travel down a few sidestreets and never arrive. > > --jake, who does not follow this Google group at all and will not see any > replies... > > -- > 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.
