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mathias's profile
Mathias Bynens
Mathias Bynens
Mathias Bynens
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@mathias

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Mathias BynensVerified account

@mathias

I work on @ChromeDevTools & @v8js at Google and on ECMAScript through TC39. ♥ JavaScript, HTML, CSS, HTTP, performance, security, Bash, Unicode, i18n, macOS.

Munich, Germany
mths.be
Joined January 2007

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    1. Dmitry Soshnikov‏ @DmitrySoshnikov 18 May 2019
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      Got an interesting issue for #regexp-tree: https://github.com/DmitrySoshnikov/regexp-tree/issues/179 … Let me know if you like source code transformation, compilers/transpilers, unicode, regexp, and would like to work on it.

      2 replies 0 retweets 4 likes
    2. Huáng Jùnliàng‏ @JLHwung 23 Jun 2019
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      Replying to @DmitrySoshnikov

      Hi Dmitry, here is a hands up 🙋‍♂️on this issue. I have contributed to Babel and an ESLint plugin before and fans of Unicode things. I am comfortable on code transformer but I am new to RegExp and Automata. I would be great if you could mentor me on the design phase.

      2 replies 0 retweets 0 likes
    3. Dmitry Soshnikov‏ @DmitrySoshnikov 24 Jun 2019
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      Replying to @JLHwung

      We can consult with @mathias who built a similar transform in another tool.

      1 reply 0 retweets 1 like
    4. Mathias Bynens‏Verified account @mathias 24 Jun 2019
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      Replying to @DmitrySoshnikov @JLHwung

      I’m really hoping we can find a way to share commonalities (like the raw Unicode data) between regexpu-core and your implementation, so they can easily be updated at the same time. I’m worried about fracturing the tooling ecosystem by having separate, subtly different transpilers

      1 reply 0 retweets 2 likes
    5. Dmitry Soshnikov‏ @DmitrySoshnikov 24 Jun 2019
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      Replying to @mathias @JLHwung

      @mathias, what we could share is the data itself probably. Re: the transpiler itself, parser, and other dependencies -- there is no need to mix two implementations. We can extract the data (unicode tables, etc) from your implementation into a separate module probably.

      1 reply 0 retweets 0 likes
    6. Huáng Jùnliàng‏ @JLHwung 24 Jun 2019
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      Replying to @DmitrySoshnikov @mathias

      I think we could start from https://github.com/mathiasbynens/regenerate-unicode-properties … , which is a JavaScript friendly translation from PropList.txt in UCD tailored for https://github.com/tc39/proposal-regexp-unicode-property-escapes …. We don't have to create another module with subtly different translations.

      1 reply 0 retweets 1 like
    7. Huáng Jùnliàng‏ @JLHwung 24 Jun 2019
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      Replying to @JLHwung @DmitrySoshnikov @mathias

      However, my major concern is on the package size. The packed size of regenerate-unicode-properties is 85 kB while the one of regexp-tree is only 60.1 kB. The gzipped size of PropList.txt is 25 kB and we could even do better. In this situation we may need get our hands dirty.

      3 replies 0 retweets 0 likes
    8. Mathias Bynens‏Verified account @mathias 24 Jun 2019
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      Replying to @JLHwung @DmitrySoshnikov

      Where does the 85 kB number come from? Per https://bundlephobia.com/result?p=regenerate-unicode-properties@8.1.0 … and https://bundlephobia.com/result?p=regenerate@1.4.0 … it's 5.1 kB (for the data) + 7.7 kB (for regenerate).

      1 reply 0 retweets 0 likes
    9. Huáng Jùnliàng‏ @JLHwung 25 Jun 2019
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      Replying to @mathias @DmitrySoshnikov

      The number 85 kB comes from npm pack, so it’s gzipped but unminimized. For web user the minimized size is more relevant. Regexp-tree weighs for 24 kB, so regenerate + data would counts 50% of original size. I agree with Dmitry that we should create a separate transform module.

      1 reply 0 retweets 1 like
      Mathias Bynens‏Verified account @mathias 25 Jun 2019
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      Replying to @JLHwung @DmitrySoshnikov

      I also strongly agree FWIW, was just wondering about the numbers :) IMHO regexp-tree is a build-time tool which should not be used at runtime on the web, and so file size does not matter very much.

      7:35 AM - 25 Jun 2019
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