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|
WEBVTT
NOTE Introduction
00:00:00.000 --> 00:00:02.319
Nice to have you here on this talk.
00:00:02.320 --> 00:00:04.519
This is my second talk this year.
00:00:04.520 --> 00:00:09.919
First one was on things that I've done to Org Mode.
00:00:09.920 --> 00:00:13.799
Just as a side note, this presentation
00:00:13.800 --> 00:00:16.279
that I'm going to share with you
00:00:16.280 --> 00:00:19.879
about my work on Corfu and Yasnippet.
00:00:19.880 --> 00:00:21.839
I've prepared that on Org Mode
00:00:21.840 --> 00:00:25.079
and exported that with a work I've been doing
00:00:25.080 --> 00:00:26.839
to the latest exporter.
00:00:26.840 --> 00:00:31.959
Anyhow, what is my talk going to be about?
00:00:31.960 --> 00:00:34.599
It's going to be about Corfu and Yasnippet,
00:00:34.600 --> 00:00:36.599
which I thought would be difficult to integrate,
00:00:36.600 --> 00:00:42.799
and it was much easier than I thought.
00:00:42.800 --> 00:00:46.959
So just a short outline, my motivation,
00:00:46.960 --> 00:00:49.959
step-by-step of the things that I've been investigating,
00:00:49.960 --> 00:00:52.515
and some takeaways.
NOTE Motivation
00:00:52.516 --> 00:00:55.919
So my motivation, yasnippet is old.
00:00:55.920 --> 00:00:59.599
So I've tried another. I've tried Tempel
00:00:59.600 --> 00:01:02.519
and other template management packages,
00:01:02.520 --> 00:01:08.159
but it was really not my cup of tea. So mainly why?
00:01:08.160 --> 00:01:10.919
Mainly because I have a nice base of yasnippets
00:01:10.920 --> 00:01:14.479
I have generated for my needs.
00:01:14.480 --> 00:01:17.799
So it's not that I've been importing snippets
00:01:17.800 --> 00:01:20.359
from packages which are out there.
00:01:20.360 --> 00:01:23.599
No, they are my snippets. I'm used to them.
00:01:23.600 --> 00:01:26.559
And of course, migration counts as a cost.
00:01:26.560 --> 00:01:32.639
I've been using Company as my completion point function GUI for years,
00:01:32.640 --> 00:01:38.167
but with the time coming in features and so on,
00:01:38.168 --> 00:01:44.359
it was not as easy to set up as I wanted for my needs.
00:01:44.360 --> 00:01:47.181
So I had been working,
00:01:47.182 --> 00:01:49.839
I've been playing with Eglot already some time
00:01:49.840 --> 00:01:53.119
for a language server protocol.
00:01:53.120 --> 00:01:57.039
I had read about how easy it was to integrate with Corfu,
00:01:57.040 --> 00:02:02.839
which was really nice, and I had given it a try,
00:02:02.840 --> 00:02:10.250
but I'm using both graphical user interface mode in Emacs
00:02:10.251 --> 00:02:11.000
and text mode,
00:02:11.001 --> 00:02:13.042
and for text mode you need corfu-terminal,
00:02:13.043 --> 00:02:16.399
which was yet another package that I didn't download.
00:02:16.400 --> 00:02:21.479
Well, and I didn't really find a quick way
00:02:21.480 --> 00:02:24.479
to get rid of company to get yasnippet.
00:02:24.480 --> 00:02:26.679
So at the end, when, at the beginning,
00:02:26.680 --> 00:02:30.107
when I was using Corfu and Eglot,
00:02:30.108 --> 00:02:33.959
I also needed to load company
00:02:33.960 --> 00:02:35.759
to have yasnippet support,
00:02:35.760 --> 00:02:37.639
which was really like sort of weird
00:02:37.640 --> 00:02:40.559
because I wanted to get rid of yasnippet.
00:02:40.560 --> 00:02:47.199
Anyhow, while I try now, I'm following the mailing list,
00:02:47.200 --> 00:02:48.559
the development mailing list,
00:02:48.560 --> 00:02:51.799
and I got interested when I heard something about
00:02:51.800 --> 00:02:57.119
TTY child frames being announced for master.
00:02:57.120 --> 00:02:59.599
That would mean less packages to download
00:02:59.600 --> 00:03:04.159
because I thought I could get rid of Corfu,
00:03:04.160 --> 00:03:07.359
and I wanted to try if I could get rid of corfu-terminal
00:03:07.360 --> 00:03:11.199
and run Corfu without that.
00:03:11.200 --> 00:03:18.799
So, there were some hints there in that mailing list
00:03:18.800 --> 00:03:21.879
that made it interesting for me.
00:03:21.880 --> 00:03:26.639
And at the end, I'm also like a "why not try"ing man,
00:03:26.640 --> 00:03:29.119
so I said, let's give it a try.
NOTE My requirements
00:03:29.120 --> 00:03:33.479
My requirements, I'm working always on a new Emacs,
00:03:33.480 --> 00:03:36.759
a decently new Emacs, normally from master, vanilla,
00:03:36.760 --> 00:03:41.209
completely vanilla, and I don't have any extras
00:03:41.210 --> 00:03:42.559
like Doom or things like that.
00:03:42.560 --> 00:03:45.519
So I'm only vanilla. And one of the things
00:03:45.520 --> 00:03:50.279
that I don't want is that on this vanilla recent Emacs,
00:03:50.280 --> 00:03:55.719
I don't want a corfu-terminal. I need yasnippet.
00:03:55.720 --> 00:03:57.359
I'm basically an old man.
00:03:57.360 --> 00:04:02.479
Old dog doesn't do new tricks and snippets must,
00:04:02.480 --> 00:04:06.239
in my way of working, must be easy and quick to configure,
00:04:06.240 --> 00:04:10.479
and tempel or others that I've seen are not.
00:04:10.480 --> 00:04:13.919
I don't want any reminiscence of company in my setup.
00:04:13.920 --> 00:04:18.679
And of course, don't forget that I've embraced
00:04:18.680 --> 00:04:24.119
the language protocol implementations and basically Eglot.
00:04:24.120 --> 00:04:28.159
My main focus now is Python and LaTeX,
00:04:28.160 --> 00:04:31.719
and I have pylsp and texlab.
00:04:31.720 --> 00:04:37.599
I don't want to have to stop using them.
NOTE Basic setup: corfu + eglot
00:04:37.600 --> 00:04:40.479
So basic setup for Corfu and Eglot.
00:04:40.480 --> 00:04:43.439
You can find it everywhere you look for it.
00:04:43.440 --> 00:04:46.559
It's really easy.
00:04:46.560 --> 00:04:51.119
And actually, I also do something somehow naughty,
00:04:51.120 --> 00:04:53.079
which is to set this variable,
00:04:53.080 --> 00:04:55.519
the corfu-auto variable to true,
00:04:55.520 --> 00:04:58.399
although I know it's not recommended, blah, blah, blah.
00:04:58.400 --> 00:05:02.959
But I use that because I'm a bit lazy in that.
NOTE Looking at completion-at-point functions
00:05:02.960 --> 00:05:07.239
So next step was looking at completion at point functions.
00:05:07.240 --> 00:05:10.479
So the information there, if you go through, is scattered
00:05:10.480 --> 00:05:13.739
and sometimes a bit cryptic.
00:05:13.740 --> 00:05:16.599
At the end I came up with something like the thing
00:05:16.600 --> 00:05:18.399
that you see there on the screen.
00:05:18.400 --> 00:05:21.879
It's a function for yas-completion-at-point.
00:05:21.880 --> 00:05:24.639
I need my list of keywords,
00:05:24.640 --> 00:05:30.039
so that I'm going to be talking later,
00:05:30.040 --> 00:05:34.399
and I have my bounds, which is normally a word,
00:05:34.400 --> 00:05:37.119
and from that, I get the start and the end
00:05:37.120 --> 00:05:40.879
of the thing that I want to
00:05:40.880 --> 00:05:47.319
be my seed for looking and bringing up Corfu,
00:05:47.320 --> 00:05:52.599
and of course, I need some completion properties here.
00:05:52.600 --> 00:05:55.719
This looked like this is what you need to do,
00:05:55.720 --> 00:05:57.519
but I had to dig quite deep
00:05:57.520 --> 00:06:01.319
to create a yasnippet keyword test
00:06:01.320 --> 00:06:04.759
and to understand the completion props.
00:06:04.760 --> 00:06:11.759
And as an update of what I've been doing in the last weeks,
00:06:11.760 --> 00:06:17.606
I've created a bound of things at point for me
00:06:17.607 --> 00:06:18.679
with a different thing
00:06:18.680 --> 00:06:22.039
that doesn't skip over non-blank characters,
00:06:22.040 --> 00:06:25.039
that only skips over non-blank characters.
00:06:25.040 --> 00:06:28.999
Why? Because 'word was confusing LaTeX,
00:06:29.000 --> 00:06:30.759
because the backslash,
00:06:30.760 --> 00:06:34.999
like in the example for the teletype text,
00:06:35.000 --> 00:06:37.999
was not taken into account by 'word.
00:06:38.000 --> 00:06:39.959
So I had to create my own one,
00:06:39.960 --> 00:06:42.119
which was a bounds-of-thing-at-point,
00:06:42.120 --> 00:06:44.879
and then my thing is non-blanks.
NOTE Making my own (basic) c-a-p-f for yasnippet: the completion properties
00:06:44.880 --> 00:06:51.179
Completion at point properties, what are they?
00:06:51.180 --> 00:06:56.039
They allow Emacs to know how to handle the information
00:06:56.040 --> 00:06:58.899
for a specific completion time.
00:06:58.900 --> 00:07:03.239
So you normally will have an annotation,
00:07:03.240 --> 00:07:08.519
which then can disappear if you use nerd-icons-corfu,
00:07:08.520 --> 00:07:11.839
which is what I'm doing currently,
00:07:11.840 --> 00:07:17.900
but I keep it commented just in case I get tired of Corfu
00:07:17.901 --> 00:07:20.000
and I want to have my completion function.
00:07:20.001 --> 00:07:24.959
Then the :company-kind is actually not something
00:07:24.960 --> 00:07:30.999
that comes from the company package, but does not require.
00:07:31.000 --> 00:07:39.439
And that's going to allow nerd-icons-corfu to identify
00:07:39.440 --> 00:07:44.839
and put the right icon there in the completion list,
00:07:44.840 --> 00:07:47.159
as you will see in a couple of minutes.
00:07:47.160 --> 00:07:50.439
So it's a snippet key.
00:07:50.440 --> 00:07:52.599
So basically what this is telling you
00:07:52.600 --> 00:07:54.319
is that this is a snippet keyword.
00:07:54.320 --> 00:07:56.799
These two lines, either line,
00:07:56.800 --> 00:07:59.999
tell you that this is a snippet keyword,
00:08:00.000 --> 00:08:05.279
and that it should be added to the other completions
00:08:05.280 --> 00:08:10.899
that you already have in your list.
NOTE Getting yas-kw-list right: What do I want?
00:08:10.900 --> 00:08:15.479
Problems. Looking... Now, next step,
00:08:15.480 --> 00:08:18.479
once I had the completion props
00:08:18.480 --> 00:08:21.439
which was relatively easy was to go
00:08:21.440 --> 00:08:24.399
and get the keyword list right.
00:08:24.400 --> 00:08:27.199
I've been looking at pre-existing solutions
00:08:27.200 --> 00:08:29.319
like, for example, how the menu
00:08:29.320 --> 00:08:32.539
is built in by yasnippet
00:08:32.540 --> 00:08:34.399
and it looked a bit like Mission Impossible,
00:08:34.400 --> 00:08:40.439
because the approach by all the things
00:08:40.440 --> 00:08:43.199
that I have seen and I have examined
00:08:43.200 --> 00:08:48.659
is to get the keys and the names
00:08:48.660 --> 00:08:50.799
and then further process them.
00:08:50.800 --> 00:08:55.279
My take was, do I really need both?
00:08:55.280 --> 00:08:58.159
At the end, if I use my own snippets,
00:08:58.160 --> 00:09:00.439
I'm going to be using something
00:09:00.440 --> 00:09:02.559
I would call meaningful keys for them,
00:09:02.560 --> 00:09:06.359
or at least meaningful for... These keys are meaningful for me,
00:09:06.360 --> 00:09:07.679
and I try not to repeat them,
00:09:07.680 --> 00:09:09.959
because it makes little sense to repeat a keyword.
00:09:09.960 --> 00:09:13.919
So why not center everything around the keys only,
00:09:13.920 --> 00:09:18.879
and can that help simplify my code?
NOTE Diving in yasnippet
00:09:18.880 --> 00:09:23.639
So I started to dive into yasnippet
00:09:23.640 --> 00:09:27.319
and I found a lot of useful semi-hidden functions there.
00:09:27.320 --> 00:09:30.679
I discovered that getting the list,
00:09:30.680 --> 00:09:34.959
the list of keys for a given mode was not that difficult.
00:09:34.960 --> 00:09:40.079
And at the end, what I started doing
00:09:40.080 --> 00:09:43.399
is get all the snippet tables used by a major mode
00:09:43.400 --> 00:09:47.999
and get the lists of the keys that you have in each table.
00:09:48.000 --> 00:09:50.375
Sometimes the list is empty
00:09:50.376 --> 00:09:54.319
so it's going to return a nil and that you have to discard.
00:09:54.320 --> 00:09:57.559
When you're using structured snippets
00:09:57.560 --> 00:10:02.479
like snippets and submenus and so on
00:10:02.480 --> 00:10:06.399
to get a structured menu.
00:10:06.400 --> 00:10:09.834
You also get some non-strings that you need to filter out
00:10:09.835 --> 00:10:15.039
in order to get a workable keyword list.
00:10:15.040 --> 00:10:21.799
At the end of the day, what I had was something like this.
00:10:21.800 --> 00:10:29.519
I have, for a mode, I went through all modes.
00:10:29.520 --> 00:10:38.799
through all modes associated to that, and then I went,
00:10:38.800 --> 00:10:42.480
I got my results from all the tables that I had
00:10:42.520 --> 00:10:45.279
for a given time, for a given table.
00:10:45.280 --> 00:10:48.079
So what you do is you get the tables
00:10:48.080 --> 00:10:53.119
that are associated to a mode, because, surprise, surprise,
00:10:53.120 --> 00:10:55.958
some modes have more than one table.
00:10:55.959 --> 00:11:00.917
And then what you do is you filter out all non strings
00:11:00.918 --> 00:11:07.719
from each of the keys list that you have for each table.
00:11:07.720 --> 00:11:12.379
So as you see, it's a 1, 2, 3, 4, 5, 6, 7 liner,
00:11:12.380 --> 00:11:14.319
which was not too much.
00:11:14.320 --> 00:11:20.039
By the way, if someone from Yasnippet is around,
00:11:20.040 --> 00:11:26.959
I sent a pull request to include this
00:11:26.960 --> 00:11:28.999
as a public function in Yasnipit
00:11:29.000 --> 00:11:32.319
because it might be nice to have it in the package
00:11:32.320 --> 00:11:33.840
in order to do this kind of things.
NOTE Fine-tuning: adding cape
00:11:33.840 --> 00:11:41.239
So fine-tuning. Just adding a yas completion
00:11:41.240 --> 00:11:44.719
to the completion point functions was not enough.
00:11:44.720 --> 00:11:46.799
I don't really know,
00:11:46.800 --> 00:11:51.199
but :exclusive no didn't seem to work how I wanted
00:11:51.200 --> 00:11:54.549
so I needed to escape... Sorry. Yeah.
00:11:54.550 --> 00:11:57.399
I was saying I was getting rid of packages,
00:11:57.400 --> 00:12:00.279
and I had to add one package
00:12:00.280 --> 00:12:04.479
in order to get a function, which is very, very, nice,
00:12:04.480 --> 00:12:08.919
and which is part of the cape function of the cape package,
00:12:08.920 --> 00:12:12.799
and that's cape-capf-super.
00:12:12.800 --> 00:12:16.439
So at the end, using that, you define an alias,
00:12:16.440 --> 00:12:23.199
which, for that, where you use cape-capf-super
00:12:23.200 --> 00:12:25.799
to have a list of what you want...
00:12:25.800 --> 00:12:29.079
So in this case, for example, for the demo
00:12:29.080 --> 00:12:31.419
I'm going to make, I'm using yas completion
00:12:31.420 --> 00:12:36.172
and then the elisp-completion-at-point function
00:12:36.173 --> 00:12:37.719
provided by Emacs.
00:12:37.720 --> 00:12:43.999
I combine them using cape-capf-super,
00:12:44.000 --> 00:12:47.679
and with that, I create a completion point,
00:12:47.680 --> 00:12:53.159
a new completion point function which I call cape-lisp-mode,
00:12:53.160 --> 00:12:58.480
and then I add this alias to the completion functions list,
00:12:58.520 --> 00:13:03.803
and with that, it is enough.
NOTE Automatic snippet expansion
00:13:03.804 --> 00:13:05.719
Snippet expansion.
00:13:05.720 --> 00:13:13.839
If you want to have your snippets expanded automatically,
00:13:13.840 --> 00:13:27.999
you have to add an exit function to the, I'm sorry,
00:13:28.000 --> 00:13:30.879
to the completion properties.
00:13:30.880 --> 00:13:34.119
Yet another functionality you have to add.
00:13:34.120 --> 00:13:39.199
And to avoid this automatic selection to be too eager,
00:13:39.200 --> 00:13:47.973
you need to add this setq corfu-on-exact-match to nil
00:13:47.974 --> 00:13:51.839
because otherwise, you will always get the snippet expanded,
00:13:51.840 --> 00:13:55.039
even if you don't want it. Basically, why?
00:13:55.040 --> 00:13:57.639
Basically, because this would be suboptimal
00:13:57.640 --> 00:14:05.359
because the key can appear as part of a variable name.
NOTE Themes
00:14:05.360 --> 00:14:10.599
Another nice thing, I'm also creating my own themes.
00:14:10.600 --> 00:14:13.759
I'm trying to have very sleek themes
00:14:13.760 --> 00:14:16.839
that only cover the modes that I use
00:14:16.840 --> 00:14:22.959
and for that I have my own theme creator fork
00:14:22.960 --> 00:14:26.959
from the original theme creator.
00:14:26.960 --> 00:14:29.292
In my personal fork that I'm running at home,
00:14:29.293 --> 00:14:33.859
I only have the faces for the modes I use.
00:14:33.860 --> 00:14:38.159
I don't want to overload the thing
00:14:38.160 --> 00:14:41.839
with too much different things.
00:14:41.840 --> 00:14:45.999
Looking at this, I really didn't need, as you will see now,
00:14:46.000 --> 00:14:50.079
I don't need to add anything to my themes,
00:14:50.080 --> 00:14:53.279
because the default faces for Corfu
00:14:53.280 --> 00:14:58.319
adapt quite well to most of the themes.
NOTE My check-list
00:14:58.320 --> 00:15:01.478
So if I go back to my checklist,
00:15:01.479 --> 00:15:02.839
decently new Emacs, yes,
00:15:02.840 --> 00:15:06.559
compiled. The one you'll see
00:15:06.560 --> 00:15:09.239
in the demo I'm doing is a master
00:15:09.240 --> 00:15:11.999
compiled the day before yesterday
00:15:12.000 --> 00:15:15.199
and I don't need corfu-terminal there.
00:15:15.200 --> 00:15:16.559
I need yasnippet,
00:15:16.560 --> 00:15:20.159
and you're going to see that in a second
00:15:20.160 --> 00:15:24.439
with a couple of snippets that I can expand here.
00:15:24.440 --> 00:15:27.479
I don't want any reminiscence of a company in my setup,
00:15:27.480 --> 00:15:32.119
and there's none. Well, actually, :company-kind is there
00:15:32.120 --> 00:15:33.719
you see the company there,
00:15:33.720 --> 00:15:39.559
but it isn't defined by company strictly speaking,
00:15:39.560 --> 00:15:44.679
and for... I don't want... I need Eglot integration
00:15:44.680 --> 00:15:48.583
which I will also be showing you.
NOTE Takeaways
00:15:48.584 --> 00:15:50.400
Takeaways from all this,
00:15:50.440 --> 00:15:55.279
if you accept the extra burden
00:15:55.280 --> 00:16:02.239
of corfu-terminal for Emacs 30 or earlier Emacs 30s,
00:16:02.240 --> 00:16:07.559
it's not too difficult to get this set up running.
00:16:07.560 --> 00:16:11.759
Corfu was easier to integrate and configure than Company,
00:16:11.760 --> 00:16:13.799
and it's much lighter in terms
00:16:13.800 --> 00:16:20.039
of number of lines, et cetera. I learned a lot.
00:16:20.040 --> 00:16:25.159
Well, actually, yes, with the help of Cape,
00:16:25.160 --> 00:16:27.399
but it is much lighter and much easier
00:16:27.400 --> 00:16:30.119
to integrate and configure.
00:16:30.120 --> 00:16:34.879
I've learned a lot about computational functions in the process,
00:16:34.880 --> 00:16:40.439
which is, something that is always nice to learn new things
00:16:40.440 --> 00:16:45.039
and the nerd-icons-corfu makes the...
00:16:45.040 --> 00:16:48.319
at least, at this point in time... I might get tired of it,
00:16:48.320 --> 00:16:50.399
but at this point in time, it makes
00:16:50.400 --> 00:16:58.039
a very nice overall look and feel for Emacs.
NOTE Requests (to whom it may concern)
00:16:58.040 --> 00:17:02.039
Requests (to whom it may concern): cape has nice features
00:17:02.040 --> 00:17:06.279
that maybe could make their way into emacs.
00:17:06.280 --> 00:17:08.064
I'm thinking basically about
00:17:08.065 --> 00:17:12.399
this super cape functionality
00:17:12.400 --> 00:17:18.799
which is very nice, and overcomes the problem of linking,
00:17:18.800 --> 00:17:22.239
and this :exclusive and all this kind of things
00:17:22.240 --> 00:17:26.479
that we have currently in Corfu
00:17:26.480 --> 00:17:28.439
with the completion-at-point functions.
00:17:28.440 --> 00:17:32.959
Corfu is also really nice to have, and it's not too big.
00:17:32.960 --> 00:17:35.559
So is there any possibility
00:17:35.560 --> 00:17:40.079
that it makes its way into Emacs?
00:17:40.080 --> 00:17:42.399
Please keep yasnippet alive.
00:17:42.400 --> 00:17:48.559
I'm not saying here that my pull request should be there,
00:17:48.560 --> 00:17:51.559
but it would be nice if someone took a look
00:17:51.560 --> 00:17:57.399
and made it part of Yasnippet.
00:17:57.400 --> 00:18:01.799
And P.S., currently on master,
00:18:01.800 --> 00:18:04.292
there's a lot of semantic highlighting going on,
00:18:04.293 --> 00:18:07.125
which is very, very nice. No criticism on that.
00:18:07.126 --> 00:18:12.417
But you may need to add to your snippet hook
00:18:12.418 --> 00:18:25.039
this simple local value for elisp-fontify-semantically,
00:18:25.040 --> 00:18:30.719
because at least in my case, I felt that
00:18:30.720 --> 00:18:32.439
the faces were a bit too pushy,
00:18:32.440 --> 00:18:37.280
so I had to make the snippet mode
00:18:37.334 --> 00:18:43.579
use the old Emacs Lisp fontification.
00:18:43.580 --> 00:18:46.279
This would be my talk.
00:18:46.280 --> 00:18:54.999
Any initial reactions to this? There's a question here.
NOTE Q: Did you try yasnippet-capf? If so, what did you miss from it that this approach has? Thanks! https://github.com/elken/yasnippet-capf
00:18:55.000 --> 00:18:59.159
Someone asked, did you try yasnippet-capf?
00:18:59.160 --> 00:19:05.959
If so, what did you miss from this approach? I tried that.
00:19:05.960 --> 00:19:11.239
And it's not that I missed anything.
00:19:11.240 --> 00:19:15.839
It was more or less that I wanted to do it myself.
00:19:15.840 --> 00:19:24.159
So I wanted to see what was behind it. That's my answer.
00:19:24.160 --> 00:19:26.679
There are lots of packages there,
00:19:26.680 --> 00:19:31.719
but I try to keep learning. So, this was a nice objective
00:19:31.720 --> 00:19:40.159
to learn a bit more about Emacs. And now, just a second.
NOTE A small demo
00:19:40.160 --> 00:19:44.879
Now, a small demo. This is the interaction.
00:19:44.880 --> 00:19:47.199
And as you see, I have the snippet there.
00:19:47.200 --> 00:19:52.879
and I have a couple of snippets.
00:19:52.880 --> 00:19:55.839
So, for example, if I would like to say
00:19:55.840 --> 00:19:58.879
I want to define a function, I can go like this.
00:19:58.880 --> 00:20:00.519
And what you see here is that
00:20:00.520 --> 00:20:04.319
I have two snippets appearing and then some variables.
00:20:04.320 --> 00:20:09.879
So, I could go for defun or if I want a key map, for def-keymap,
00:20:09.880 --> 00:20:11.479
which would be something like this.
00:20:11.480 --> 00:20:18.319
And then when I press enter, I get directly into the map
00:20:18.320 --> 00:20:26.719
and I could say like, show off map.
00:20:26.720 --> 00:20:30.079
Then it sets out directly a :prefix t,
00:20:30.080 --> 00:20:35.039
which is something that I asked for in Emacs master.
00:20:35.040 --> 00:20:39.479
So with :prefix t, for those who prefix it true,
00:20:39.480 --> 00:20:41.399
for those who don't know it,
00:20:41.400 --> 00:20:49.042
it makes integrating this into keymaps
00:20:49.043 --> 00:20:52.125
in use-package much easier.
00:20:52.126 --> 00:20:54.167
So the next thing would be,
00:20:54.168 --> 00:20:56.500
I would like to write a description,
00:20:56.501 --> 00:21:04.999
like, for example, a cool show-off keymap,
00:21:05.000 --> 00:21:08.599
and then my keys are my functions, and that would be it.
00:21:08.600 --> 00:21:15.839
Of course, you also have like this define function.
00:21:15.840 --> 00:21:21.679
And of course you can say, that's nice,
00:21:21.680 --> 00:21:23.799
but you're not showing the integration
00:21:23.800 --> 00:21:25.439
with Eglot, and you're right.
00:21:25.440 --> 00:21:30.279
So I'm going just to open up a small program
00:21:30.280 --> 00:21:33.319
that I'm currently developing in Python.
00:21:33.320 --> 00:21:38.239
This is a tool to do things in MP3.
00:21:38.240 --> 00:21:42.279
And here I would have, like, all these things.
00:21:42.280 --> 00:21:45.359
As you see here in the bottom,
00:21:45.360 --> 00:21:49.079
server is running, file is local, eglot is active.
00:21:49.080 --> 00:21:57.919
So I have my eglot stop and then I go down.
00:21:57.920 --> 00:22:00.519
And I want to add a new argument here.
00:22:00.520 --> 00:22:08.799
I would go like for it. I would go like add flag.
00:22:08.800 --> 00:22:13.759
For example, I would add a flag
00:22:13.760 --> 00:22:27.859
and I would get a new flag to add here.
00:22:27.860 --> 00:22:33.119
Oops. Of course, this is integrated into Eglot,
00:22:33.120 --> 00:22:42.759
so I'm getting your information about what I have.
00:22:42.760 --> 00:22:52.359
I could... I don't have os, so I would need to import here,
00:22:52.360 --> 00:22:59.279
but I can go up just to see...
00:22:59.280 --> 00:23:01.759
If I would like to, for example,
00:23:01.760 --> 00:23:11.879
create a new regular expression,
00:23:11.880 --> 00:23:15.439
I'm getting this information that you see right now on call.
00:23:15.440 --> 00:23:17.359
I'm getting that from Eglot.
00:23:17.360 --> 00:23:18.919
So you see there's the integration
00:23:18.920 --> 00:23:20.839
with Eglot too in Python.
00:23:20.840 --> 00:23:23.559
I have Eglot, and as you've seen
00:23:23.560 --> 00:23:30.239
I also have the... and all these are snippets. Fine.
00:23:30.240 --> 00:23:38.199
More reactions and questions?
00:23:38.200 --> 00:23:54.239
Because that would be my show off here.
00:23:54.240 --> 00:24:09.379
Any questions? Any more questions on the pad?
00:24:09.380 --> 00:24:11.479
but anyhow I'm going to try,
00:24:11.480 --> 00:24:13.239
I'm going to try yasnippet too
00:24:13.240 --> 00:24:16.279
and I'm going to be answering this question more
00:24:16.280 --> 00:24:21.079
yeah time is good okay fine
00:24:21.080 --> 00:24:30.039
so I would be done if there's no more reactions...
00:24:30.040 --> 00:24:33.239
Thank you so much. You're welcome.
00:24:33.240 --> 00:24:34.919
If you have any other questions, folks,
00:24:34.920 --> 00:24:37.079
you can always follow up on the pad.
00:24:37.080 --> 00:24:39.639
That was a great demonstration, and I'm sure lots of people
00:24:39.640 --> 00:24:43.519
are looking forward to trying it out.
00:24:43.520 --> 00:24:45.239
Oh, I see some questions coming in now.
00:24:45.240 --> 00:24:46.199
You may go ahead if you like.
00:24:46.200 --> 00:24:51.879
Okay, fine. There's someone asking:
NOTE Q: Do special characters in yasnippets work well too? example <FD ?
00:24:51.880 --> 00:24:57.079
Do special characters in your snippets work well too?
00:24:57.080 --> 00:25:02.479
what kind of... I don't use special characters in the key name,
00:25:02.480 --> 00:25:05.199
so in this case everything works quite nicely,
00:25:05.200 --> 00:25:11.359
and then I'm passing, I'm passing the control to yasnippet,
00:25:11.360 --> 00:25:13.679
so if there's any problem in yasnippet
00:25:13.680 --> 00:25:15.359
with special characters,
00:25:15.360 --> 00:25:24.399
that, I don't know. I don't use that as a key.
00:25:24.400 --> 00:25:30.519
I'm just using for key names.
00:25:30.520 --> 00:25:38.399
I normally use a... I only use letters, but that should work.
00:25:38.400 --> 00:25:43.959
I mean, let's, uh, let's give it a trial.
00:25:43.960 --> 00:25:58.039
Let's kill here. Yes. I don't want, I don't want to touch this.
00:25:58.040 --> 00:26:01.039
Ugh. Let's go into this one.
00:26:01.040 --> 00:26:06.920
Let's say I'm going to define this, for example, like this,
00:26:06.959 --> 00:26:10.919
and I'm going to create a new snippet.
00:26:10.920 --> 00:26:15.359
I'm going to create a new snippet
00:26:15.360 --> 00:26:18.119
and use this. For example, when you look at this,
00:26:18.120 --> 00:26:31.042
if you have the new way of the new Emacs
00:26:31.043 --> 00:26:37.667
semantical highlighting working,
00:26:37.668 --> 00:26:40.625
this would be quite cramped. This is why I'm using,
00:26:40.626 --> 00:26:44.899
this is why I said the snippet, the...
00:26:44.900 --> 00:26:55.139
So is this more or less what you're talking about?
00:26:55.140 --> 00:27:12.579
This is what you're talking about. Snippet. Save the snippet.
00:27:12.580 --> 00:27:15.479
Snippet, load and put window.
00:27:15.480 --> 00:27:21.279
Enable interaction mode. Yes, I'm going to save.
00:27:21.280 --> 00:27:31.059
And I'm going to save that as fd test in the file.
00:27:31.060 --> 00:27:41.479
No, I'm going to save this. Load. Load input window.
00:27:41.480 --> 00:27:53.679
I'm going to put this in Emacs Lisp mode. I want to save it. No.
00:27:53.680 --> 00:28:27.359
I'm going to write that directly into Emacs Lisp mode.
00:28:27.360 --> 00:28:30.639
Going to go back into scratch buffer,
00:28:30.640 --> 00:28:43.079
and here I have it. We have it here. But anyhow...
00:28:43.080 --> 00:28:46.934
And I'm just going to try to see, if I feel like...
00:28:46.935 --> 00:28:52.663
Empty? Of course, there's only one.
00:28:52.664 --> 00:28:58.839
It will not show in Corfu.
00:28:58.840 --> 00:29:01.519
but I mean, I don't have any problems
00:29:01.520 --> 00:29:20.999
with that, as you see. Was that what you were meaning?
00:29:21.000 --> 00:29:24.839
Yeah, I guess that works. Fine.
00:29:24.840 --> 00:29:29.039
All right, shall we wrap up here
00:29:29.040 --> 00:29:31.279
so that you can have supper
00:29:31.280 --> 00:29:40.919
and have lunch and other things? Okay, fine for me.
00:29:40.920 --> 00:29:46.319
I was hoping to see the drop down. Just a second.
00:29:46.320 --> 00:29:49.959
I think we can do that too. Two seconds.
00:29:49.960 --> 00:29:52.559
How can we do that with a drop down?
00:29:52.560 --> 00:29:57.719
Yeah, if I say something like this.
00:29:57.720 --> 00:30:04.919
And then I go and save it.
00:30:04.920 --> 00:30:08.799
And I'm going to go and write this
00:30:08.800 --> 00:30:16.719
into, with a second, fine.
00:30:16.720 --> 00:30:18.179
And now I need to quit here, sorry.
00:30:18.180 --> 00:30:26.639
And I'm going to come back in a second with another remark.
00:30:26.640 --> 00:30:31.559
Well, I'm bringing back and now let's see.
00:30:31.560 --> 00:30:34.839
Let's see what we have in yasnippet.
00:30:34.840 --> 00:30:44.159
It's not there. Why not? Just a second. Let's see if I go.
00:30:44.160 --> 00:30:47.839
I don't know if it matters that the name was
00:30:47.840 --> 00:30:52.599
that didn't have the characters in the beginning.
00:30:52.600 --> 00:31:05.699
Just a second. I think I know what is happening here.
00:31:05.700 --> 00:31:21.439
Do I have them? I'm going to clean.
00:31:21.440 --> 00:31:28.879
[Sacha]: Oh, you're back in your home directories is why.
00:31:28.880 --> 00:31:35.004
cd - to get back in.
00:31:35.005 --> 00:31:35.879
Yeah. That's right.
00:31:35.880 --> 00:31:37.799
So you see how the name also has...
00:31:37.800 --> 00:31:39.319
it doesn't have the same as the keys.
00:31:39.320 --> 00:31:41.039
I don't know if that affects what shows up.
00:31:41.040 --> 00:31:44.880
[Pedro]: Yeah, we we can try that.
00:31:44.881 --> 00:31:49.999
That's a quick one. This is my...
00:31:50.000 --> 00:31:51.279
Fine, now that I have this,
00:31:51.280 --> 00:31:55.359
which is going to be quicker, we check again.
00:31:55.360 --> 00:31:57.919
They both seem to be the same now
00:31:57.920 --> 00:32:03.079
and I don't know if that affects, but anyhow, let's try it.
00:32:03.080 --> 00:32:07.679
I go and then I look at the yasnippet, if it's there.
00:32:07.680 --> 00:32:09.956
Yes, it is.
00:32:09.957 --> 00:32:11.879
[Sacha]: Yeah, it's there.
00:32:11.880 --> 00:32:18.559
[Pedro]: And then if I say there, there you are. Oh, look at that.
00:32:18.560 --> 00:32:22.167
It doesn't seem to be affecting.
00:32:22.168 --> 00:32:24.159
[Sacha]: Fantastic.
00:32:24.160 --> 00:32:32.119
[Pedro]: And by the way, it is there.
NOTE Emacs Lisp
00:32:32.120 --> 00:32:33.999
[Sacha]: Yeah, I really should spend time
00:32:34.000 --> 00:32:36.599
getting more templates set up with yasnippet.
00:32:36.600 --> 00:32:37.639
I really love the fact that
00:32:37.640 --> 00:32:40.399
you can evaluate Emacs Lisp in it too.
00:32:40.400 --> 00:32:43.399
[Pedro]: Yeah, I mean, just to make it bigger,
00:32:43.400 --> 00:32:51.359
try that because if I go into my, for example,
00:32:51.360 --> 00:32:55.679
into my org mode stuff
00:32:55.680 --> 00:32:59.439
and in my org mode, I go to the article,
00:32:59.440 --> 00:33:03.319
which is one of the big ones.
00:33:03.320 --> 00:33:05.119
I have things like, for example,
00:33:05.120 --> 00:33:09.199
I defined a couple of functions here to do if it's empty,
00:33:09.200 --> 00:33:16.399
if that is empty, just add a white space.
00:33:16.400 --> 00:33:19.599
If one is empty, add a white space.
00:33:19.600 --> 00:33:23.319
add a white space here so it becomes a comment.
00:33:23.320 --> 00:33:27.279
I have functions to do more things on that,
00:33:27.280 --> 00:33:29.799
and I also have menus to see
00:33:29.800 --> 00:33:31.439
what language I want to choose for
00:33:31.440 --> 00:33:33.250
my spell checking and so on.
00:33:33.251 --> 00:33:35.480
And that's all... As you see,
00:33:35.481 --> 00:33:39.417
this is Lisp being evaluated.
00:33:39.418 --> 00:33:45.119
So yes, do. I really encourage you
00:33:45.120 --> 00:33:46.519
[Sacha]: I've also heard people use it,
00:33:46.520 --> 00:33:47.799
like, especially if they're working
00:33:47.800 --> 00:33:49.919
in different programming languages,
00:33:49.920 --> 00:33:52.399
so they can just have the syntax
00:33:52.400 --> 00:33:54.359
for the different languages
00:33:54.360 --> 00:33:58.239
be condensed into a consistent abbreviation.
00:33:58.240 --> 00:34:01.319
[Pedro]: Yeah. And look, this is my article. I have another.
00:34:01.320 --> 00:34:07.799
This is when I'm writing articles. I have another one.
00:34:07.800 --> 00:34:10.279
I have another one for writing letters
00:34:10.280 --> 00:34:14.399
in org mode and so on. So, it's like letter, block,
00:34:14.400 --> 00:34:16.559
and you have the complete infrastructure
00:34:16.560 --> 00:34:20.159
and you don't have to type it by hand.
00:34:20.160 --> 00:34:22.879
So, it's really, really nice.
00:34:22.880 --> 00:34:25.959
[Sacha]: Hmm, I think it might be nice to have
00:34:25.960 --> 00:34:28.079
a future Emacs carnival, you know,
00:34:28.080 --> 00:34:31.239
shared blogging theme thing be around
00:34:31.240 --> 00:34:33.359
having people share their snippets.
00:34:33.360 --> 00:34:39.359
[Pedro]: Yasnippets and other things. Like for example,
00:34:39.360 --> 00:34:41.319
this is something stupid.
00:34:41.320 --> 00:34:44.519
I'm switching my themes. All right.
00:34:44.520 --> 00:34:48.639
And of course, there you see,
00:34:48.640 --> 00:34:51.439
I have also, this is also with,
00:34:51.440 --> 00:34:55.792
this is my way of switching buffers,
00:34:55.793 --> 00:34:58.159
which is with the shift control and tab,
00:34:58.160 --> 00:35:00.559
I can switch different families
00:35:00.560 --> 00:35:02.519
and then when I'm in a family,
00:35:02.520 --> 00:35:06.999
I can go and switch with control tab between the different,
00:35:07.000 --> 00:35:13.659
I'm using tab line by the way. I'm not using the other one.
00:35:13.660 --> 00:35:20.839
I'm using the old plain tab line with my themes.
00:35:20.840 --> 00:35:23.519
So that's more or less everything.
00:35:23.520 --> 00:35:26.519
[Sacha]: Thank you for the peek into your workflow.
00:35:26.520 --> 00:35:30.759
I will work on getting the recordings for the live talks
00:35:30.760 --> 00:35:34.458
sorted out at some point very soon.
00:35:34.459 --> 00:35:37.084
I might even be able to get them out next week.
00:35:37.085 --> 00:35:43.667
So thanks again. All right. Have a nice supper.
00:35:43.668 --> 00:35:44.920
[Pedro]: Same to you.
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