Implement Default for Loc

[MiSawa]

Thank you for the amazing lexer!

The generated lexer seems to be 99% compatible with what lalrpop takes. The only incompatibility is the lack of Default implementation for lexgen_util::Loc, which lalrpop uses to initialize the location. If there's no reason not to implement it, it'd be great to have it implemented so that the following just works (with type Location = lexgen_util::Loc and type Error = lexgen_util::LexerError<MyError> defined in the extern section of the .lalrpop file).

let lexer = Lexer::new(query); // The lexgen-generated lexer
let query = QueryParser::new() // The lalrpop-generated parser
    .parse(query, lexer)
    .unwrap();

[osa1]

Thanks for reporting this and the PR.

lalrpop compatibility has always been a goal since the early days, but I never got around using lexgen with lalrpop as I originally planned, instead I wrote my own parsers.

Btw, if you're interested in implementing a lexgen-lalrpop example or a test I would be happy to merge that as well :-)

[MiSawa]

Opened PR that adds an example! :) https://github.com/osa1/lexgen/pull/46

[MiSawa]

Hi, I'm wondering if this change can be published so we don't need to specify dependency via lexgen = { git = "..." } :)

[osa1]

Hi, I'm wondering if this change can be published so we don't need to specify dependency via lexgen = { git = "..." } :)

Done :)

[MiSawa]

Awesome, thank you!!