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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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    1. Tim Sweeney‏ @TimSweeneyEpic 3 Aug 2019
      • Report Tweet
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      The problem with JSON and XML based file formats is the tendency to require further parsing to decode values from strings. A universal interchange file format would have the ability to express all common data types through the composition of atomic values and containers.

      35 replies 28 retweets 230 likes
      Show this thread
      Tim Sweeney‏ @TimSweeneyEpic 3 Aug 2019
      • Report Tweet
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      Between all the major programming language families, you won’t find more than a couple dozen atomic types, a dozen distinct (up to isomorphism) container types, and a couple conventions for nominal containers that achieve globally unambiguous name scoping.

      6:44 PM - 3 Aug 2019
      • 3 Retweets
      • 37 Likes
      • smcri Nils Matt Loveday Weeks Nathan SculptrVR Carter David Henning Kev Z Tom Ryder ori we
      4 replies 3 retweets 37 likes
        1. New conversation
        2. Tim Sweeney‏ @TimSweeneyEpic 3 Aug 2019
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          A desirable property here is: A value expressed in a universal interchange format unambiguously expresses its type, with no question of e.g. whether a string should be interpreted as a string, an enum, or a hex encoded byte array.

          9 replies 1 retweet 42 likes
          Show this thread
        3. Tim Sweeney‏ @TimSweeneyEpic 3 Aug 2019
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          • Report NetzDG Violation

          Another desirable property is diffability. JSON makes single-line semantic changes require multi-line adjustment of commas, and XML with end tags.

          8 replies 0 retweets 31 likes
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        4. Tim Sweeney‏ @TimSweeneyEpic 3 Aug 2019
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          Finally, real data contains some equivalent of pointers or references, often with cycles. A universal interchange format must be able to express a snapshot of this data at a point in time, including references to external data that may be found elsewhere.

          9 replies 2 retweets 44 likes
          Show this thread
        5. Tim Sweeney‏ @TimSweeneyEpic 3 Aug 2019
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          It’s the lack of this notion of local and remote references in data that leaves Java and C# requiring ad hoc database glue layers in languages that were otherwise sufficiently high-level that they could have solved the problem in a wonderfully general way.

          25 replies 0 retweets 40 likes
          Show this thread
        6. End of conversation
        1. c0de517e/AngeloPesce‏ @kenpex 3 Aug 2019
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          Replying to @TimSweeneyEpic

          ubjson is not terrible

          0 replies 0 retweets 1 like
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        1. Ryan Strug‏ @ryanstrug 3 Aug 2019
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          Replying to @TimSweeneyEpic

          I’m sure a parser could just look at the bits of JSON rather than doing a full language conversion to a string prior to splitting it up into keys and values. Beyond deciding on sizes of keys/values ahead of time, to maintain compatibility I think you still have to at least \0.

          0 replies 0 retweets 0 likes
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