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<a name="devel-mainVideo-transcript"></a>
# Transcript
[[!template new="1" text="""Hello, it's time for another Emacs development update.""" start="00:00:00.000" video="mainVideo-devel" id="subtitle"]]
[[!template text="""I want to thank the organizers of EmacsConf""" start="00:00:05.320" video="mainVideo-devel" id="subtitle"]]
[[!template text="""for putting this together""" start="00:00:07.800" video="mainVideo-devel" id="subtitle"]]
[[!template text="""and also the maintainers of Emacs""" start="00:00:10.160" video="mainVideo-devel" id="subtitle"]]
[[!template text="""with a special thanks to Eli Zaretskii.""" start="00:00:12.280" video="mainVideo-devel" id="subtitle"]]
[[!template text="""It's really he who gave me this information""" start="00:00:14.240" video="mainVideo-devel" id="subtitle"]]
[[!template text="""so that I could pass it along to you.""" start="00:00:16.520" video="mainVideo-devel" id="subtitle"]]
[[!template new="1" text="""The main thing to discuss this time""" start="00:00:19.360" video="mainVideo-devel" id="subtitle"]]
[[!template text="""with regard to what's been going on with Emacs is Emacs 29.""" start="00:00:21.720" video="mainVideo-devel" id="subtitle"]]
[[!template text="""The release cycle for Emacs 29 should begin in December""" start="00:00:25.880" video="mainVideo-devel" id="subtitle"]]
[[!template text="""when a branch will be cut and the release work will start.""" start="00:00:29.840" video="mainVideo-devel" id="subtitle"]]
[[!template text="""We should be seeing Emacs 29 coming out fairly soon.""" start="00:00:32.880" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Here's just a brief overview""" start="00:00:36.600" video="mainVideo-devel" id="subtitle"]]
[[!template text="""of some of the things to look forward to""" start="00:00:38.120" video="mainVideo-devel" id="subtitle"]]
[[!template text="""coming up in Emacs 29.""" start="00:00:39.680" video="mainVideo-devel" id="subtitle"]]
[[!template new="1" text="""Overlays have been re-implemented.""" start="00:00:42.480" video="mainVideo-devel" id="subtitle"]]
[[!template text="""If you haven't used them before,""" start="00:00:45.680" video="mainVideo-devel" id="subtitle"]]
[[!template text="""overlays are a way to apply a set of properties""" start="00:00:47.240" video="mainVideo-devel" id="subtitle"]]
[[!template text="""over a range of text so that""" start="00:00:50.960" video="mainVideo-devel" id="subtitle"]]
[[!template text="""you can have things like mouse clicks""" start="00:00:53.560" video="mainVideo-devel" id="subtitle"]]
[[!template text="""take on different behavior""" start="00:00:55.840" video="mainVideo-devel" id="subtitle"]]
[[!template text="""depending on where it happens in the text.""" start="00:00:57.920" video="mainVideo-devel" id="subtitle"]]
[[!template text="""This is different than text properties""" start="00:00:59.520" video="mainVideo-devel" id="subtitle"]]
[[!template text="""which associate the properties with the text itself.""" start="00:01:01.720" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Overlays do not alter the text in any way""" start="00:01:04.080" video="mainVideo-devel" id="subtitle"]]
[[!template text="""and they simply, as the name suggests,""" start="00:01:07.200" video="mainVideo-devel" id="subtitle"]]
[[!template text="""overlay on the buffer.""" start="00:01:09.320" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Now previously, overlays were implemented as linear lists""" start="00:01:10.920" video="mainVideo-devel" id="subtitle"]]
[[!template text="""which got very slow when there were""" start="00:01:14.040" video="mainVideo-devel" id="subtitle"]]
[[!template text="""a lot of overlays in a buffer.""" start="00:01:15.800" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Now they're being re-implemented as trees,""" start="00:01:17.880" video="mainVideo-devel" id="subtitle"]]
[[!template text="""so that searching should be very fast, and""" start="00:01:19.920" video="mainVideo-devel" id="subtitle"]]
[[!template text="""in fact, comparable to text properties.""" start="00:01:21.880" video="mainVideo-devel" id="subtitle"]]
[[!template text="""This is already on the master branch""" start="00:01:24.440" video="mainVideo-devel" id="subtitle"]]
[[!template text="""and (more or less) is ready for release.""" start="00:01:26.520" video="mainVideo-devel" id="subtitle"]]
[[!template new="1" text="""Eglot has been ported into Emacs.""" start="00:01:29.280" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Eglot is an LSP [Language Server Protocol] client for Emacs,""" start="00:01:32.240" video="mainVideo-devel" id="subtitle"]]
[[!template text="""one of the two that are often used.""" start="00:01:36.960" video="mainVideo-devel" id="subtitle"]]
[[!template text="""But now it's going to be included in core,""" start="00:01:38.440" video="mainVideo-devel" id="subtitle"]]
[[!template text="""so it's considered official""" start="00:01:40.840" video="mainVideo-devel" id="subtitle"]]
[[!template text="""and will be well integrated with other Emacs features.""" start="00:01:42.760" video="mainVideo-devel" id="subtitle"]]
[[!template new="1" text="""There's going to be a Tree-sitter library.""" start="00:01:46.480" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Tree-sitter is a way of building fast incremental parsers.""" start="00:01:48.640" video="mainVideo-devel" id="subtitle"]]
[[!template text="""There's a website on Tree-sitter if you Google for that.""" start="00:01:53.200" video="mainVideo-devel" id="subtitle"]]
[[!template text="""This can be used for various features,""" start="00:01:56.040" video="mainVideo-devel" id="subtitle"]]
[[!template text="""but first and foremost, it'll be used""" start="00:01:57.800" video="mainVideo-devel" id="subtitle"]]
[[!template text="""for fontification and indentation in Emacs.""" start="00:01:59.720" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Instead of heuristics and regular expressions,""" start="00:02:02.840" video="mainVideo-devel" id="subtitle"]]
[[!template text="""you can now build your fontifications""" start="00:02:05.600" video="mainVideo-devel" id="subtitle"]]
[[!template text="""based on a parse tree.""" start="00:02:07.400" video="mainVideo-devel" id="subtitle"]]
[[!template text="""There's a branch now that supports this""" start="00:02:09.080" video="mainVideo-devel" id="subtitle"]]
[[!template text="""for several modes already, like Python, TypeScript,""" start="00:02:10.640" video="mainVideo-devel" id="subtitle"]]
[[!template text="""and JavaScript.""" start="00:02:13.680" video="mainVideo-devel" id="subtitle"]]
[[!template text="""We don't have anyone yet working on it for C mode""" start="00:02:15.000" video="mainVideo-devel" id="subtitle"]]
[[!template text="""but Eli has challenged whether anyone""" start="00:02:18.120" video="mainVideo-devel" id="subtitle"]]
[[!template text="""in the community is interested.""" start="00:02:20.480" video="mainVideo-devel" id="subtitle"]]
[[!template text="""He would love to see Tree-sitter support added for C mode,""" start="00:02:21.960" video="mainVideo-devel" id="subtitle"]]
[[!template text="""because this has been quite slow""" start="00:02:25.960" video="mainVideo-devel" id="subtitle"]]
[[!template text="""when dealing with very, very large files""" start="00:02:27.880" video="mainVideo-devel" id="subtitle"]]
[[!template text="""and Tree-sitter should help that.""" start="00:02:29.640" video="mainVideo-devel" id="subtitle"]]
[[!template new="1" text="""There have been significant improvements""" start="00:02:32.000" video="mainVideo-devel" id="subtitle"]]
[[!template text="""in dealing with very long lines.""" start="00:02:34.320" video="mainVideo-devel" id="subtitle"]]
[[!template text="""This is something that has been""" start="00:02:36.680" video="mainVideo-devel" id="subtitle"]]
[[!template text="""a long time frequent complaint.""" start="00:02:38.160" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Emacs becomes rather unusable""" start="00:02:40.800" video="mainVideo-devel" id="subtitle"]]
[[!template text="""if you open a giant file that's a single long line.""" start="00:02:42.880" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Anyone who's ever tried to open a 30 megabyte JSON file""" start="00:02:45.840" video="mainVideo-devel" id="subtitle"]]
[[!template text="""that's all on one line will know this pain.""" start="00:02:49.560" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Some modes, however, will have to adapt to this change,""" start="00:02:52.200" video="mainVideo-devel" id="subtitle"]]
[[!template text="""because sometimes access to the whole buffer""" start="00:02:55.960" video="mainVideo-devel" id="subtitle"]]
[[!template text="""is now forcefully restricted.""" start="00:02:58.320" video="mainVideo-devel" id="subtitle"]]
[[!template text="""If the mode requires access to the entire buffer""" start="00:03:00.440" video="mainVideo-devel" id="subtitle"]]
[[!template text="""at all times to work, then the developer of that mode""" start="00:03:04.400" video="mainVideo-devel" id="subtitle"]]
[[!template text="""will need to devise some simplifications""" start="00:03:08.000" video="mainVideo-devel" id="subtitle"]]
[[!template text="""so that they don't require that complete access.""" start="00:03:10.240" video="mainVideo-devel" id="subtitle"]]
[[!template text="""For example, if a mode used to go way back""" start="00:03:13.160" video="mainVideo-devel" id="subtitle"]]
[[!template text="""to the beginning of the buffer""" start="00:03:15.760" video="mainVideo-devel" id="subtitle"]]
[[!template text="""in order to determine if there's an unbalanced parenthesis,""" start="00:03:16.920" video="mainVideo-devel" id="subtitle"]]
[[!template text="""this won't work in the new long lines support mode,""" start="00:03:19.480" video="mainVideo-devel" id="subtitle"]]
[[!template text="""because the entire buffer is not always available.""" start="00:03:23.040" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Emacs is sort of doing some""" start="00:03:25.840" video="mainVideo-devel" id="subtitle"]]
[[!template text="""restricting of the buffer heuristically""" start="00:03:27.720" video="mainVideo-devel" id="subtitle"]]
[[!template text="""in order to keep the visible range working""" start="00:03:29.880" video="mainVideo-devel" id="subtitle"]]
[[!template text="""very, very quickly now.""" start="00:03:32.480" video="mainVideo-devel" id="subtitle"]]
[[!template new="1" text="""Emacs can now build directly with SQLite.""" start="00:03:35.280" video="mainVideo-devel" id="subtitle"]]
[[!template text="""This means that SQLite databases""" start="00:03:39.240" video="mainVideo-devel" id="subtitle"]]
[[!template text="""can be directly accessible from Emacs.""" start="00:03:42.360" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Should be nice for anyone whose mode wants to""" start="00:03:44.880" video="mainVideo-devel" id="subtitle"]]
[[!template text="""cache or store some queryable data.""" start="00:03:47.360" video="mainVideo-devel" id="subtitle"]]
[[!template new="1" text="""The XInput extension is now up to version 2.""" start="00:03:50.080" video="mainVideo-devel" id="subtitle"]]
[[!template text="""There are many extensions in this specification.""" start="00:03:54.960" video="mainVideo-devel" id="subtitle"]]
[[!template text="""From the user's point of view,""" start="00:03:58.240" video="mainVideo-devel" id="subtitle"]]
[[!template text="""it enables things like smooth scrolling and touch devices.""" start="00:03:59.800" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Emacs will now use this by default on all systems""" start="00:04:03.360" video="mainVideo-devel" id="subtitle"]]
[[!template text="""where the library is installed.""" start="00:04:06.320" video="mainVideo-devel" id="subtitle"]]
[[!template text="""It should be on every modern system that uses X.""" start="00:04:08.560" video="mainVideo-devel" id="subtitle"]]
[[!template new="1" text="""There's also a pure GTK build in Emacs 29.""" start="00:04:11.320" video="mainVideo-devel" id="subtitle"]]
[[!template text="""The purpose of this is to allow Emacs""" start="00:04:15.520" video="mainVideo-devel" id="subtitle"]]
[[!template text="""on systems without X, such as Wayland or Broadway,""" start="00:04:17.560" video="mainVideo-devel" id="subtitle"]]
[[!template text="""to be able to have a graphical build of Emacs.""" start="00:04:21.160" video="mainVideo-devel" id="subtitle"]]
[[!template text="""There's also lots of improvements to drag and drop""" start="00:04:24.160" video="mainVideo-devel" id="subtitle"]]
[[!template new="1" text="""on X systems, for people who like drag and drop.""" start="00:04:27.320" video="mainVideo-devel" id="subtitle"]]
[[!template text="""And there's support for double buffering on Microsoft Windows.""" start="00:04:31.360" video="mainVideo-devel" id="subtitle"]]
[[!template new="1" text="""The last of the headline features""" start="00:04:34.280" video="mainVideo-devel" id="subtitle"]]
[[!template new="1" text="""coming for Emacs 29 is emoji input.""" start="00:04:38.480" video="mainVideo-devel" id="subtitle"]]
[[!template text="""So there will now be a prefix key,""" start="00:04:41.160" video="mainVideo-devel" id="subtitle"]]
[[!template text="""C-x 8 e for emoji input,""" start="00:04:43.520" video="mainVideo-devel" id="subtitle"]]
[[!template text="""along with several new commands to insert emoji""" start="00:04:47.320" video="mainVideo-devel" id="subtitle"]]
[[!template text="""by various forms of shorthand.""" start="00:04:50.240" video="mainVideo-devel" id="subtitle"]]
[[!template text="""There will even be an input method""" start="00:04:52.480" video="mainVideo-devel" id="subtitle"]]
[[!template text="""where you can write the plain English names of emojis""" start="00:04:54.360" video="mainVideo-devel" id="subtitle"]]
[[!template text="""and have the symbol inserted.""" start="00:04:57.560" video="mainVideo-devel" id="subtitle"]]
[[!template text="""So that rounds out some of the features""" start="00:04:59.120" video="mainVideo-devel" id="subtitle"]]
[[!template new="1" text="""coming up for Emacs 29.""" start="00:05:02.160" video="mainVideo-devel" id="subtitle"]]
[[!template text="""Sounds like an exciting release""" start="00:05:03.680" video="mainVideo-devel" id="subtitle"]]
[[!template text="""and it should be headed your way soon.""" start="00:05:05.680" video="mainVideo-devel" id="subtitle"]]
[[!template text="""I hope everybody has fun at the conference""" start="00:05:07.480" video="mainVideo-devel" id="subtitle"]]
[[!template text="""and enjoy yourselves.""" start="00:05:09.920" video="mainVideo-devel" id="subtitle"]]
Captioner: sachac
Questions or comments? Please e-mail [emacsconf-org-private@gnu.org](mailto:emacsconf-org-private@gnu.org?subject=Comment%20for%20EmacsConf%202022%20devel%3A%20Emacs%20development%20updates)
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