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I don't know a single mainstream language that uses parser generators. Python used to, and even they have moved. AFAIK the reason is solely error messages: the

• muvlon 10mo ago
  I'll let you decide whether it counts as "mainstream", but the principal implementation of Nix has a very old school setup using bison and flex: https://github.com/NixOS/nix/blob/master/src/libexpr/parser.y https://github.com/NixOS/nix/blob/master/src/libexpr/parser.... https://github.com/NixOS/nix/blob/master/src/libexpr/lexer.l https://github.com/NixOS/nix/blob/master/src/libexpr/lexer.l
  • nullpoint420 10mo ago
    It shows, even as a Nix fan. The errors messages are abysmal
• sanxiyn 10mo ago
  Ruby also used to use Bison, uses its own https://github.com/ruby/lrama https://github.com/ruby/lrama these days.