String-parsing in Nix

String parsers

Some string parsers written in Nix

yaml

• https://github.com/DavHau/fromYaml
• https://github.com/arcnmx/nixexprs/blob/master/lib/from-yaml.nix

toml

• https://github.com/mozilla/nixpkgs-mozilla/blob/master/lib/parseTOML.nix

yarn.lock

• https://github.com/nix-community/dream2nix/blob/main/src/subsystems/nodejs/translators/yarn-lock/parser.nix
• https://github.com/nix-community/npmlock2nix/pull/29

cabal freeze

https://github.com/nix-community/dream2nix/blob/main/src/subsystems/haskell/translators/cabal-freeze/parser.nix

IPv4 addresses

https://github.com/NixOS/nix/issues/1491#issuecomment-318273971

Parser generators

Generate parser from grammar

• https://github.com/nprindle/nix-parsec

See also

• Add an Earley parser builtin (nix#1491)
• fromXML builtin? (nixpkgs#57239)
• String parsing in other Functional Programming Languages
  • String parsing in Haskell (google)
  • XML parser in pure Haskell (google)