regexp

go regexp with RE2 DFA matcher port - golang.org/cl/12081 (by matloob)
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regexp reviews and mentions

Posts with mentions or reviews of regexp. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2025-05-09.
  • Rust Dependencies Scare Me
    23 projects | news.ycombinator.com | 9 May 2025
    > (because it does not allow writing sufficiently fast code in this area at this moment)

    I don't think that's why. Or at least, I don't think it's straight-forward to draw that conclusion yet. I don't see any reason why the lazy DFA in RE2 or the Rust regex crate couldn't be ported to Go[1] and dramatically speed things up. Indeed, it has been done[2], but it was never pushed over the finish line. My guess is it would make Go's regexp engine a fair bit more competitive in some cases. And aside from that, there's tons of literal optimizations that could still be done that don't really have much to do with Go the language.

    Could a Go-written regexp engine be faster or nearly as fast because of the language? Probably not. But I think the "implementation quality" is a far bigger determinant in explaining the current gap.

    [1]: https://github.com/golang/go/issues/11646

    [2]: https://github.com/matloob/regexp

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about 9 years ago

matloob/regexp is an open source project licensed under BSD 3-clause "New" or "Revised" License which is an OSI approved license.

The primary programming language of regexp is Go.


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