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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. Peter van der Zee‏ @kuvos 9 Sep 2019
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      Works or B0rks? ``` /\uD83D�/u.test('💩') ``` Surrogate pairs are trouble for regex class ranges with and without u-flag. You can have 💩, which is two (16-bit) code units forming the code point x1f4a9. You can encode it as \u{1f4a9}, even as \uD83D\uDCA9. But can you mix it?

      3 replies 0 retweets 2 likes
    2. Fake “Unicode.”  ↙️‏ @FakeUnicode 9 Sep 2019
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      Replying to @kuvos

      JavaScript + Unicode is Fun* Here is a version you can tweet: z = new RegExp('\uD83D\\uDCA9'); z; z.test('💩'); z = new RegExp('\uD83D\\uDCA9','u'); z; z.test('💩');pic.twitter.com/H2cFDjfNp8

      2 replies 1 retweet 1 like
    3. Paul Melero‏ @paul_melero 10 Sep 2019
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      Replying to @FakeUnicode @kuvos

      I wrote a short post on this a few days ago:https://graficos.net/blog/2019-08-29-how-to-search-for-emojis-with-regular-expressions …

      2 replies 1 retweet 6 likes
    4. Mathias Bynens‏Verified account @mathias 11 Nov 2019
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      Replying to @paul_melero @FakeUnicode @kuvos

      Have you seen the follow-up proposal at https://github.com/tc39/proposal-regexp-unicode-sequence-properties …? It would solve the use case your blog post describes.

      1 reply 0 retweets 1 like
    5. Peter van der Zee‏ @kuvos 11 Nov 2019
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      Replying to @mathias @paul_melero @FakeUnicode

      So this adds the 5 groups to the list and calls it a day? Why is this (only) stage 2? Adding groups to the list should be a no-brainer... :/ Could bikeshed over something like `/\p{emoji=...}/` but whatever 🤱

      1 reply 0 retweets 0 likes
      Mathias Bynens‏Verified account @mathias 11 Nov 2019
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      Replying to @kuvos @paul_melero @FakeUnicode

      Extending the list with properties *is* a no-brainer, and we do it each year when the Unicode Standard updates. However, the properties in *this* proposal behave a little different than anything we currently support. Hence the separate proposal. The readme should clarify it

      10:29 AM - 11 Nov 2019
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Mathias Bynens‏Verified account @mathias 11 Nov 2019
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          Replying to @mathias @kuvos and

          \p{ASCII} (or anything else that’s already supported in JS) currently always matches a single code point at a time. But these new properties could match multiple code points! Thus, the main point of discussion is: re-use \p{…} syntax, or add new syntax?https://github.com/tc39/proposal-regexp-unicode-sequence-properties/issues/10 …

          1 reply 0 retweets 0 likes
        3. Fake “Unicode.”  ↙️‏ @FakeUnicode 11 Nov 2019
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          Replying to @mathias @kuvos @paul_melero

          Another fun monkey wrench: Unicode fell into the habit of doing a single major Unicode + Emoji release in June (moved to March in 2019) once a year, so updates to data files could be somewhat predictably scheduled. But...pic.twitter.com/VgZ1PU66RL

          1 reply 0 retweets 0 likes
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