If you're not using a lexer generator for your compiler, why?

• lexgen

  4 60 5.9 Rust

  A fully-featured lexer generator, implemented as a proc macro

I'm working on my own lexer and parser generators, and I'm trying to understand why some projects don't use lexer and parser generators and use hand-written lexers and parsers.

• parsegen

  2 15 1.5 Rust

  An LR parser generator, implemented as a proc macro

I'm working on my own lexer and parser generators, and I'm trying to understand why some projects don't use lexer and parser generators and use hand-written lexers and parsers.

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• logos

  15 2,627 8.3 Rust

  Create ridiculously fast Lexers (by maciejhirsz)

P.D: I use https://github.com/maciejhirsz/logos because I found the idea to annotate an enum kind of sensible (annotate types feels like regular Rust coding).

• hush

  7 627 2.9 Rust

  Hush is a unix shell based on the Lua programming language (by hush-shell)

  

Yes, you can check the code here: https://github.com/gahag/hush

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