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How difficult would this be to support on Copper's side?
I have in mind amending Copper specs to support something like:
```
...
…
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**UPDATE**: Fund what it is in the bison manual. This is an [Actions in Mid-Rule](http://dinosaur.compilertools.net/bison/bison_6.html#SEC48).
In the ruby language parser there is a strange construct…
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### Is there an existing issue for this?
- [X] I have searched the existing issues
### Operating system
- [X] Linux
- [ ] Mac
- [ ] Windows
### Operating system version
- Linux CentOS Linux relea…
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Hi there,
I know it's kinda odd to ask about your plans, it's just that I happen to also have worked a bunch on a [tree-sitter-nim repo](https://github.com/aMOPel/tree-sitter-nim) and was wondering…
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This is a very common practice that a parser library has it's own grammar syntax (sometimes standardized, like ABNF), but I wonder why is that? Why not just allow user to encode grammar in native lang…
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I would like to request a grammar file for Julia language if it is possible.
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Currently we have `builtins.match` for parsing strings using regular expressions. Perhaps it would be appropriate to also have `builtins.earley` function that takes an ABNF (or EBNF) grammar and a str…
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## Intro
I think we probably all agree that it would be nice to have a proper BNF for the Nix language, and that ideally the "official" parser would be compiled from that BNF. Here's why:
- It could …
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I want to contribute to Nix and the surrounding ecosystem, but I find that modifying existing code or writing new code in C++ is much more error-prone for me and I (along with others, I'm sure) could …
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Hello,
I get this error in a STL header:
```
In state 296, I expected one of these tokens:
(, ), [, ], ->, ., +, -, ++, --, &, *, .*, ->*, /, %, , =, ==, !=, ^, |, &&, ||, ?, :, =, *=, /=, %=, +=,…