Hacker News new | past | comments | ask | show | jobs | submit login

In the context of the discussion, it has been pointed out that parser generators are not used in practice in multiple very successful compilers for very successful real world languages. The grandparent to my comment claimed that the fact that GCC uses a hand written recursive descent parser is proof that that approach to parsing is good enough for anything. The parent claimed that no, it's a proof that the grammar of C++ is 'terrible'.

My point was that grammatical purity doesn't appear to correlate particularly in the real world with the success/popularity of a language. My analogy to natural languages was relevant in that context. If parser generators are not well suited to some very successful existing languages, it's not particular useful to blame that on the languages and point to currently niche (and relatively young) languages that don't have that 'problem'. In the real world, the most used languages have and will continue to have for the foreseeable future 'terrible' grammars so there will continue to be a need for parsing techniques that can handle them.

I'd actually speculate further that the analogy to natural languages is relevant in that it may not be a coincidence that the most used languages have some of the most complex grammars. Why that might be the case is an interesting question to think about.




Applications are open for YC Summer 2020

Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | Legal | Apply to YC | Contact

Search: