FrankHB

This project seems to be not maintained any more. Suggested enhancement could go to https://github.com/FrankHB/YEGE, but that has native support of MinGW-w64 (neutral to i686/x86_64) initially...

Why not `>= 4` directly? GCC 6 has been released, though I have not found MinGW distributions yet.

https://github.com/misakamm/xege/pull/3 不止是这个错误。

I agree that renaming is a correct direction; however, further clarification would be also beneficial, to who has been confused a while. As of the test cases... it is technically...

@ljharb It can be formally proved and implemented, but extremely complicated and costly in most realistic cases. Since code of most languages being used to implement the object language is...

The project description is also not consistent with README.md. This should be easy to fix.

看了下 2.5 改的部分，盲猜同 #66 。（才想起来之前也是自己改过 `@match` 才能用的。） 另外火狐商店链接挂了。

This seems a failure of parsing [the metadata block](https://wiki.greasespot.net/Metadata_Block). It also chokes with `@match` which seems not supported in some variants (e.g. GM for Pale Moon) so I'd replace all...

Well done... possible towards a more practical one not so toyish like [Rust](https://users.rust-lang.org/t/is-there-a-plan-to-get-a-formal-rust-language-specification-at-some-point/21622)? ;)

Is this completed? I find the grammar summary, but nothing about semantics, nor any rules of conformance.