Crafting Interpreters: Calls and Functions

Re:Crafting Interpreters: Calls and Functions by jchook on Thursday July 25, 2019 @02:41PM (#20528155)

Thanks to your book I overcame my fear of formal grammars and wrote three essential LL(1) parsers for my latest project.

Where before I haphazardly ignored features like quoted strings or escaped characters, I now have extremely high confidence in my parsers’ completeness and correctness. Also the error reporting rocks and the code is easy to read!

Thank you!!!

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Re:Crafting Interpreters: Calls and Functions by danso on Thursday July 25, 2019 @03:19PM (#20528515)

If you are at liberty to share, were these parsers for a specific domain? I'm curious about how to decide when creating a domain-specific grammar/language is worth it for any given project.

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Re:Crafting Interpreters: Calls and Functions by jchook on Thursday July 25, 2019 @07:51PM (#20531037)

In my case I basically just transliterated RFC XXXX grammars from ABNF to code. I ended up really enjoying it.

I have seen problems that probably do merit a special DSL or language, though I find it somewhat unfortunate if you need such a thing.

One example that comes to mind, Soul lang: https://news.ycombinator.com/item?id=19791154

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