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  3. Whoa. UTF-8 is older now than ASCII was when UTF-8 was invented.

Whoa. UTF-8 is older now than ASCII was when UTF-8 was invented.

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  • tek@freeradical.zoneT tek@freeradical.zone

    @mo @vathpela Also, UTF-8 is trivially easy to synchronize. If you delete a byte out of the middle of a file, at most you’ll lost the one affected character (well, code point). The ones before and after it will be fine. That’s not true of some other Unicode encodings, like double width ones where everything after would be out of sync.

    root42@chaos.socialR This user is from outside of this forum
    root42@chaos.socialR This user is from outside of this forum
    root42@chaos.social
    wrote last edited by
    #13

    @tek This! UTF-8 is a great encoding. Unicode can be a mess at times though. 🙂

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    • tek@freeradical.zoneT tek@freeradical.zone

      Whoa. UTF-8 is older now than ASCII was when UTF-8 was invented.

      debaer@23.socialD This user is from outside of this forum
      debaer@23.socialD This user is from outside of this forum
      debaer@23.social
      wrote last edited by
      #14

      @tek But UTF-EBCDIC is still younger than EBCDIC was when UTF-EBCDIC was invented.

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      • vathpela@infosec.exchangeV vathpela@infosec.exchange

        @tek and it still sucks

        djl@mastodon.mit.eduD This user is from outside of this forum
        djl@mastodon.mit.eduD This user is from outside of this forum
        djl@mastodon.mit.edu
        wrote last edited by
        #15

        @vathpela @tek

        Nah. It stopped sucking when Unicode became variable-width even in a 32-bit encoding. Or at least it no longer became valid to correctly point out that it sucks, since there now isn't anything that doesn't.

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        • mxk@hachyderm.ioM mxk@hachyderm.io

          @vathpela @tek I would argue that in modern times this really shouldn't be an issue to be concerned about. It's not like telnet and plain serial connections are still most central communication protocols. And if your storage is causing bit flips you have other issues than readable plain text.

          ahltorp@mastodon.nuA This user is from outside of this forum
          ahltorp@mastodon.nuA This user is from outside of this forum
          ahltorp@mastodon.nu
          wrote last edited by
          #16

          @mxk @vathpela @tek I don’t know any way to run telnet over a non-checksummed connection.

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          • tek@freeradical.zoneT tek@freeradical.zone

            Whoa. UTF-8 is older now than ASCII was when UTF-8 was invented.

            timwardcam@c.imT This user is from outside of this forum
            timwardcam@c.imT This user is from outside of this forum
            timwardcam@c.im
            wrote last edited by
            #17

            @tek Every now and then the Cambridge CST exam papers include a question like "explain why even experienced programmers sometimes have problems with character codes".

            You could write pretty well anything you liked.

            Originally what was expected was an essay about things like escape sequences on Flexowriter tapes; in my day it was about conversion between EBCDIC and ASCII; these days it might be about obscure characters in URLs.

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            • mo@mastodon.mlM mo@mastodon.ml

              @vathpela IMHO, redundancy and/or checksums should be implemented on different layer, not in text encoding

              Like, there's many, many ways to keep bits from corrupting, which are applicable in different cases
              And forcing one particular inside of text encoding itself is...meh

              Same for compression btw. For some texts (CJK in particular) UTF-8 is sub-optimal, but even basic deflate makes it compact enough

              TL;DR: UTF-8 is not perfect, but having one encoding for every text outweighs

              @tek

              mansr@society.oftrolls.comM This user is from outside of this forum
              mansr@society.oftrolls.comM This user is from outside of this forum
              mansr@society.oftrolls.com
              wrote last edited by
              #18

              @mo @vathpela @tek Variable length encoding adds a little complexity at the input and output stages, but I think the benefits outweigh that, especially the 8-bit compatibility that allows a lot of software to work (at least to some extent) unmodified.

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              • tek@freeradical.zoneT tek@freeradical.zone

                Whoa. UTF-8 is older now than ASCII was when UTF-8 was invented.

                jaddle@toot.communityJ This user is from outside of this forum
                jaddle@toot.communityJ This user is from outside of this forum
                jaddle@toot.community
                wrote last edited by
                #19

                @tek
                And yet, my bank still won't let me add a contact (for etransfers) with an accent in their name.

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                • enno@mastodon.gamedev.placeE This user is from outside of this forum
                  enno@mastodon.gamedev.placeE This user is from outside of this forum
                  enno@mastodon.gamedev.place
                  wrote last edited by
                  #20

                  @tek @loke @vathpela there is a BOM defined for UTF-8, as pointless as that may seem, and it's screwing up that whole beautiful ASCII compatibility whenever someone uses it.

                  loke@functional.cafeL 1 Reply Last reply
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                  • tek@freeradical.zoneT tek@freeradical.zone

                    Whoa. UTF-8 is older now than ASCII was when UTF-8 was invented.

                    alper@rls.socialA This user is from outside of this forum
                    alper@rls.socialA This user is from outside of this forum
                    alper@rls.social
                    wrote last edited by
                    #21

                    @tek MySQL will still happily mangle it.

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                    • enno@mastodon.gamedev.placeE enno@mastodon.gamedev.place

                      @tek @loke @vathpela there is a BOM defined for UTF-8, as pointless as that may seem, and it's screwing up that whole beautiful ASCII compatibility whenever someone uses it.

                      loke@functional.cafeL This user is from outside of this forum
                      loke@functional.cafeL This user is from outside of this forum
                      loke@functional.cafe
                      wrote last edited by
                      #22

                      @enno @tek @vathpela I'd go as far as saying it's actively harmful. There are exactly zero cases when it's useful, and it will actively mess things up in most cases.

                      But, of course windows applications tend to add them at times.

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                      • vathpela@infosec.exchangeV This user is from outside of this forum
                        vathpela@infosec.exchangeV This user is from outside of this forum
                        vathpela@infosec.exchange
                        wrote last edited by
                        #23

                        @glent @ahltorp @mxk @tek do y'all just not believe people still have to deal with actual UARTs, or what?

                        mxk@hachyderm.ioM ahltorp@mastodon.nuA 2 Replies Last reply
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                        • vathpela@infosec.exchangeV vathpela@infosec.exchange

                          @glent @ahltorp @mxk @tek do y'all just not believe people still have to deal with actual UARTs, or what?

                          mxk@hachyderm.ioM This user is from outside of this forum
                          mxk@hachyderm.ioM This user is from outside of this forum
                          mxk@hachyderm.io
                          wrote last edited by
                          #24

                          @vathpela @glent @ahltorp @tek I do work with actual uarts but only for debugging purposes as a fallback when ssh fails.
                          That doesn't stop me from considering using utf-8 a net benefit.

                          vathpela@infosec.exchangeV 1 Reply Last reply
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                          • vathpela@infosec.exchangeV vathpela@infosec.exchange

                            @glent @ahltorp @mxk @tek do y'all just not believe people still have to deal with actual UARTs, or what?

                            ahltorp@mastodon.nuA This user is from outside of this forum
                            ahltorp@mastodon.nuA This user is from outside of this forum
                            ahltorp@mastodon.nu
                            wrote last edited by
                            #25

                            @vathpela @glent @mxk But even if it’s raw UART with no layer in between, it’s no more of a problem than with Ascii or ISO 8859, if you don’t count the larger surface area of a wide character, which is sort of unavoidable.

                            vathpela@infosec.exchangeV 1 Reply Last reply
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                            • mxk@hachyderm.ioM mxk@hachyderm.io

                              @vathpela @glent @ahltorp @tek I do work with actual uarts but only for debugging purposes as a fallback when ssh fails.
                              That doesn't stop me from considering using utf-8 a net benefit.

                              vathpela@infosec.exchangeV This user is from outside of this forum
                              vathpela@infosec.exchangeV This user is from outside of this forum
                              vathpela@infosec.exchange
                              wrote last edited by
                              #26

                              @mxk @glent @ahltorp @tek I agree, but I also think it could and should have improved.

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                              • ahltorp@mastodon.nuA ahltorp@mastodon.nu

                                @vathpela @glent @mxk But even if it’s raw UART with no layer in between, it’s no more of a problem than with Ascii or ISO 8859, if you don’t count the larger surface area of a wide character, which is sort of unavoidable.

                                vathpela@infosec.exchangeV This user is from outside of this forum
                                vathpela@infosec.exchangeV This user is from outside of this forum
                                vathpela@infosec.exchange
                                wrote last edited by
                                #27

                                @ahltorp @glent @mxk we could have made the whole situation better, but we didn't.

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