• Alexandru Ermicioi (14/14) May 06 2022 Hello,
• Sergey (3/17) May 06 2022 Maybe this example could be useful
• Alexandru Ermicioi (2/4) May 06 2022 Thx, I'll try adapt it to antlr format (EBNF).
• Bastiaan Veelo (4/9) May 08 2022 That grammar is very old, and contains some experiments. It is
• Alexandru Ermicioi (6/16) May 09 2022 Thx for the tip. I gave one more try to the official grammar, and
• max haughton (5/19) May 06 2022 Vladimir and a few others have an effort to do a tree-sitter
• Alexandru Ermicioi (7/11) May 06 2022 Well, I was trying to learn Truffle Language Implementation

Alexandru Ermicioi <alexandru.ermicioi gmail.com> writes:

Hello,

Is there somewhere a proper grammar file for D language, that you 
can easily feed into a parser generator, and get out of it nicely 
baked parser (preferably parser in Java)?

Tried to search for such grammars, and no luck. Found of course:
1. https://dlang.org/spec/grammar.html
2. https://libdparse.dlang.io/grammar.html

I've tried both of them to adapt to antlr4 but eventually failed 
(requires a lot more effort than I have willpower for it). First 
for some reason got out of memory exception, while for the latter 
it is plainly incomplete, and also with couple of mistyped words, 
even if it is generated from libdparse.

Thanks for the tips,
Alexandru.

Sergey <kornburn yandex.ru> writes:

On Friday, 6 May 2022 at 21:03:02 UTC, Alexandru Ermicioi wrote:
 Hello,

 Is there somewhere a proper grammar file for D language, that 
 you can easily feed into a parser generator, and get out of it 
 nicely baked parser (preferably parser in Java)?

 Tried to search for such grammars, and no luck. Found of course:
 1. https://dlang.org/spec/grammar.html
 2. https://libdparse.dlang.io/grammar.html

 I've tried both of them to adapt to antlr4 but eventually 
 failed (requires a lot more effort than I have willpower for 
 it). First for some reason got out of memory exception, while 
 for the latter it is plainly incomplete, and also with couple 
 of mistyped words, even if it is generated from libdparse.

 Thanks for the tips,
 Alexandru.

Maybe this example could be useful

https://github.com/PhilippeSigaud/Pegged/blob/master/examples/dgrammar/src/pegged/examples/dgrammar.d

Alexandru Ermicioi <alexandru.ermicioi gmail.com> writes:

On Friday, 6 May 2022 at 21:16:30 UTC, Sergey wrote:
 Maybe this example could be useful

 https://github.com/PhilippeSigaud/Pegged/blob/master/examples/dgrammar/src/pegged/examples/dgrammar.d

Thx, I'll try adapt it to antlr format (EBNF).

Bastiaan Veelo <Bastiaan Veelo.net> writes:

On Friday, 6 May 2022 at 22:46:28 UTC, Alexandru Ermicioi wrote:
 On Friday, 6 May 2022 at 21:16:30 UTC, Sergey wrote:
 Maybe this example could be useful

 https://github.com/PhilippeSigaud/Pegged/blob/master/examples/dgrammar/src/pegged/examples/dgrammar.d

 Thx, I'll try adapt it to antlr format (EBNF).

That grammar is very old, and contains some experiments. It is 
probably not what you want.

— Bastiaan.

Alexandru Ermicioi <alexandru.ermicioi gmail.com> writes:

On Sunday, 8 May 2022 at 14:40:36 UTC, Bastiaan Veelo wrote:
 On Friday, 6 May 2022 at 22:46:28 UTC, Alexandru Ermicioi wrote:
 On Friday, 6 May 2022 at 21:16:30 UTC, Sergey wrote:
 Maybe this example could be useful

 https://github.com/PhilippeSigaud/Pegged/blob/master/examples/dgrammar/src/pegged/examples/dgrammar.d

 Thx, I'll try adapt it to antlr format (EBNF).

 That grammar is very old, and contains some experiments. It is 
 probably not what you want.

 — Bastiaan.

Thx for the tip. I gave one more try to the official grammar, and 
managed to generate a parser (ofc after some bugfix in antlr4 
itself). Dunno if it is an working one yet, will have to test it.

Best regards,
Alexandru.

max haughton <maxhaton gmail.com> writes:

On Friday, 6 May 2022 at 21:03:02 UTC, Alexandru Ermicioi wrote:
 Hello,

 Is there somewhere a proper grammar file for D language, that 
 you can easily feed into a parser generator, and get out of it 
 nicely baked parser (preferably parser in Java)?

 Tried to search for such grammars, and no luck. Found of course:
 1. https://dlang.org/spec/grammar.html
 2. https://libdparse.dlang.io/grammar.html

 I've tried both of them to adapt to antlr4 but eventually 
 failed (requires a lot more effort than I have willpower for 
 it). First for some reason got out of memory exception, while 
 for the latter it is plainly incomplete, and also with couple 
 of mistyped words, even if it is generated from libdparse.

 Thanks for the tips,
 Alexandru.

Vladimir and a few others have an effort to do a tree-sitter 
grammar for D. That's the closest anyone has come in recent years 
at least.

What do you want the grammar for?

Alexandru Ermicioi <alexandru.ermicioi gmail.com> writes:

On Friday, 6 May 2022 at 22:24:33 UTC, max haughton wrote:
 Vladimir and a few others have an effort to do a tree-sitter 
 grammar for D. That's the closest anyone has come in recent 
 years at least.

 What do you want the grammar for?

Well, I was trying to learn Truffle Language Implementation 
Framework 
(https://www.graalvm.org/22.0/graalvm-as-a-platform/language-imple
entation-framework) for starters, and then play a bit with it, and find out the
features it provides, using D grammar as basis.

In long term (low probability) even to do some kind of D language 
interpreter for java. Just wondering how well is truffle api 
built for debugging, as well as for LSP integration.