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TimSweeneyEpic's profile
Tim Sweeney
Tim Sweeney
Tim Sweeney
@TimSweeneyEpic

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Tim Sweeney

@TimSweeneyEpic

Epic Games founder & CEO

epicgames.com
Joined August 2013

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    Tim Sweeney‏ @TimSweeneyEpic 28 May 2019
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    I don't understand why text editors are adopting bizarre TextMate grammars specs for syntax highlighting. All they had to do was support BNF grammars with optional mappings from productions to syntax categories and error resumption hints. https://macromates.com/manual/en/language_grammars …

    4:32 PM - 28 May 2019
    • 2 Retweets
    • 63 Likes
    • King 112176 しゃん Abdellatif Gzem Ioannis Panteleakis Mihai Popescu Vivitsu Maharaja Asindu 🦅 🇺🇬 Virgo foolio
    18 replies 2 retweets 63 likes
      1. New conversation
      2. Tim Sweeney‏ @TimSweeneyEpic 28 May 2019
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        Now I understand. TextMate uses Oniguruma regular expressions, which support recursive bindings of the form (?<name>expr) with \g<expr> recursive references back. So we can write any recursive grammar in it.

        1 reply 0 retweets 25 likes
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      3. Tim Sweeney‏ @TimSweeneyEpic 28 May 2019
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        But these regular expressions can’t cross line boundaries, so begin/end blocks track a primitive stack of state across lines, with fast incremental recomputation. The whole point being to syntax highlight code decently in the presence of syntax errors.

        6 replies 0 retweets 15 likes
        Show this thread
      4. End of conversation
      1. New conversation
      2. Covid in my veins  🦠‏ @Nperard51 28 May 2019
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        Replying to @TimSweeneyEpic

        Now on the subject of editors. What would you call the editor with the most support for UE4 specifics. One that will recognize macros, keywords and types properly when dealing with Unreal sources in C++ ?

        1 reply 0 retweets 0 likes
      3. Tim Sweeney‏ @TimSweeneyEpic 28 May 2019
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        Replying to @Nperard51

        Visual Studio is best for UE4, because that's what we use internally and we've polished up the support quite a bit.

        2 replies 0 retweets 3 likes
      4. 2 more replies
      1. James Friend‏ @ur_friend_james 28 May 2019
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        Replying to @TimSweeneyEpic

        Network effects. TextMate's community wrote enough syntax definitions that it was useful for Sublime Text to support the format. Later Atom followed, then VS Code. There is value in knowing that your editor supports every little lang you haven't even heard of from day 1.

        0 replies 1 retweet 6 likes
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      1. Menduh‏ @MenduhFN 28 May 2019
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        Replying to @TimSweeneyEpic

        I dont understand why Epic wont listen to the comp scene :(

        0 replies 0 retweets 3 likes
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      1. Cat!!!‏ @thatagoodcat 28 May 2019
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        Replying to @TimSweeneyEpic

        I don't get it either. It's regex on top of regex with some extra regex to work around the fact programming languages aren't regular. I tried to write a TextMate grammar for a self-created language, but I don't think my regex knowledge is good enough...

        0 replies 0 retweets 2 likes
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      1. ✿ Ryan ✿‏ @Ryan__Meek 28 May 2019
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        Replying to @TimSweeneyEpic

        I don’t understand why epic games are throwing fortnite game down the drain. Performance is at an all time low. Don’t get me started on loot pool either. Both are a joke. Who ever makes these decisions needs firing.

        0 replies 0 retweets 1 like
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      1. William 'Socially Distant' Wenge-Murphy‏ @BillyWM 28 May 2019
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        Replying to @TimSweeneyEpic

        I've always found this irritating too. Especially since I'm told endlessly that parsing is boring and solved.

        0 replies 0 retweets 1 like
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      1. Deeeds‏ @C2Pie 28 May 2019
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        Replying to @TimSweeneyEpic

        Their insistence that I'm wrong whilst I'm typing is insane. From a line's first character to the last, error states instead of just "we're on the road to a semicolon, together, here's some help to get us there"

        0 replies 0 retweets 1 like
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