Thanks Ben, you understood me correctly. Your tool loner parses a dialect of EBNF and gives me the parse tree of that EBNF grammar file in a scala representation, as I see at your demo page <https://benknoble.github.io/loner/demo.html>. That is exactly what I need – however, instaparse has a slightly different dialect of EBNF.
I was hoping that the instaparse parser internally holds the EBNF representation but I don't know how I can see or check that. Maybe your guess is right and it throws away the parse tree... I probably have to look into the source code of instaparse... Or I transform our EBNF to match your specification and use loner... ben.k...@gmail.com schrieb am Sonntag, 18. Juli 2021 um 02:50:48 UTC+2: > I haven't touched Clojure in a year or two, and I'm not familiar with > instaparse. > > I can say, from a terminology stand-point, that a grammar (such as one in > EBNF) can produce a parser, which then produces parse-trees of input > strings. So, perhaps you mean that you want parse-trees of strings in the > grammar of EBNF? It took me a few reads to come to this conclusion—the > expression "get a parse tree of the EBNF" threw me off. > > It seems likely that instaparse is producing a parser, and may throw away > the underlying graph (parse-tree) of the grammar. > > Regardless, I have a Scala tool that parses EBNF. I'm not sure about > interop, but it's all JVM, right? https://github.com/benknoble/loner > > On Saturday, July 17, 2021 at 3:21:36 PM UTC-4 jsch...@gmail.com wrote: > >> >> Hi all, >> >> I was hoping that I can call >> >> (instaparse.core/parser "my ::= 'ebnf' | 'grammar' ") >> >> to get a parse tree of the EBNF. I'd like to convert the EBNF to a >> tree-sitter grammar.js. >> >> But when I evaluate the above expression, I only see a the original EBNF >> input, reformatted, and without comments: >> >> => my = "ebnf" | "grammar" >> >> Is there a way to get hands on the underlying structure, i.e. the parse >> tree? >> >> Best, Jakob >> > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/clojure/603726f0-ed7a-4de3-b7f2-83a8effe23b6n%40googlegroups.com.
