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WEBVTT

00:00:00.080 --> 00:00:02.639
hi my name is eduardo x I'm this person

00:00:02.639 --> 00:00:03.439
here

00:00:03.439 --> 00:00:06.240
and the title of this talk is on why

00:00:06.240 --> 00:00:07.120
most of

00:00:07.120 --> 00:00:09.519
most of the best features in ev look

00:00:09.519 --> 00:00:11.599
like five minute hacks

00:00:11.599 --> 00:00:13.759
and this is a presentation at the max

00:00:13.759 --> 00:00:15.280
conf 2020

00:00:15.280 --> 00:00:23.199
happening in november 22 28 and 29 2020

00:00:23.199 --> 00:00:25.519
so this is part one of the presentation

00:00:25.519 --> 00:00:27.680
and here I'm going to explain some

00:00:27.680 --> 00:00:29.840
some ideas that are prerequisites for

00:00:29.840 --> 00:00:31.039
understanding the rest of the

00:00:31.039 --> 00:00:32.320
presentation

00:00:32.320 --> 00:00:35.440
the three main keys of ev are matay meta

00:00:35.440 --> 00:00:35.760
k

00:00:35.760 --> 00:00:37.920
and mata j and I'm going to start by

00:00:37.920 --> 00:00:42.079
explaining metae and meta k

00:00:42.079 --> 00:00:44.960
metae is used to follow hyperlink and

00:00:44.960 --> 00:00:46.800
technically it is

00:00:46.800 --> 00:00:49.680
essentially just a ctrl e to move to the

00:00:49.680 --> 00:00:50.879
end of the line and then

00:00:50.879 --> 00:00:54.320
a ctrl x control e to execute this the

00:00:54.320 --> 00:00:58.960
sext before point at the end of the line

00:00:58.960 --> 00:01:00.879
and the thing is that a max comes with

00:01:00.879 --> 00:01:03.120
many functions that can be used as sex

00:01:03.120 --> 00:01:05.040
hyperlinks

00:01:05.040 --> 00:01:07.040
we can consider that they point to

00:01:07.040 --> 00:01:09.040
somewhere I'm going to refer to that as

00:01:09.040 --> 00:01:09.520
the

00:01:09.520 --> 00:01:11.920
target of the hyperlink and if we

00:01:11.920 --> 00:01:12.960
execute this

00:01:12.960 --> 00:01:15.759
sex paper links would go to that target

00:01:15.759 --> 00:01:17.119
for example this one

00:01:17.119 --> 00:01:20.000
is a hyperlink that points to a buffer

00:01:20.000 --> 00:01:22.720
with demand paid for cat

00:01:22.720 --> 00:01:25.040
and usually but not always after

00:01:25.040 --> 00:01:27.040
following the hyperlink we can go back

00:01:27.040 --> 00:01:29.840
by just skilling the the current buffer

00:01:29.840 --> 00:01:30.720
that the hyperlink

00:01:30.720 --> 00:01:34.400
created the target of the hyperlink

00:01:34.400 --> 00:01:38.000
but this example here is badly behaved

00:01:38.000 --> 00:01:41.360
if we execute it it creates a new frame

00:01:41.360 --> 00:01:43.360
and to go back to the previous situation

00:01:43.360 --> 00:01:44.640
we have to either

00:01:44.640 --> 00:01:52.840
click here or type ctrl x50

00:01:52.840 --> 00:01:54.880
uh

00:01:54.880 --> 00:01:57.520
so here are some examples of sex

00:01:57.520 --> 00:02:00.640
hyperlinks using standard max functions

00:02:00.640 --> 00:02:03.600
this third one is uh badly behaved in a

00:02:03.600 --> 00:02:04.880
different way

00:02:04.880 --> 00:02:08.879
if executed we the target is created in

00:02:08.879 --> 00:02:09.840
the same window

00:02:09.840 --> 00:02:13.840
as we are now but it also shows a lot of

00:02:13.840 --> 00:02:16.000
garbage here in the aqua area so

00:02:16.000 --> 00:02:20.840
the the current frame becomes a bit

00:02:20.840 --> 00:02:23.280
messy

00:02:23.280 --> 00:02:26.160
and well one of the first things that I

00:02:26.160 --> 00:02:28.319
did when I was creating av

00:02:28.319 --> 00:02:30.720
many many years ago was that I created

00:02:30.720 --> 00:02:31.680
variants

00:02:31.680 --> 00:02:34.840
of all these functions that were better

00:02:34.840 --> 00:02:36.640
behaved

00:02:36.640 --> 00:02:38.640
and they were better behaved in two

00:02:38.640 --> 00:02:40.480
senses the obvious one

00:02:40.480 --> 00:02:43.040
was that they they all created the

00:02:43.040 --> 00:02:43.680
target

00:02:43.680 --> 00:02:45.840
in the same window as before so I could

00:02:45.840 --> 00:02:48.720
go back by just typing meta k

00:02:48.720 --> 00:02:51.040
which is essentially just killed this

00:02:51.040 --> 00:02:52.879
buffer

00:02:52.879 --> 00:02:55.200
and well but I also implemented

00:02:55.200 --> 00:02:56.480
something extra that

00:02:56.480 --> 00:02:59.040
are the post back lists for example for

00:02:59.040 --> 00:02:59.840
example these

00:02:59.840 --> 00:03:03.599
extra arguments here are a postback list

00:03:03.599 --> 00:03:06.080
and this extra arguments specify

00:03:06.080 --> 00:03:09.599
position and the target buffer

00:03:09.599 --> 00:03:13.040
and in this example this this spot

00:03:13.040 --> 00:03:16.720
spec list means starting from the from

00:03:16.720 --> 00:03:18.239
the beginning of the buffer

00:03:18.239 --> 00:03:20.560
search for the first occurrence of this

00:03:20.560 --> 00:03:22.239
string

00:03:22.239 --> 00:03:24.159
after that after the beginning of the

00:03:24.159 --> 00:03:25.519
buffer and then

00:03:25.519 --> 00:03:28.159
search for the first occurrence of this

00:03:28.159 --> 00:03:29.120
string

00:03:29.120 --> 00:03:33.760
after that

00:03:33.760 --> 00:03:36.560
eev also defines some hyperlinks that do

00:03:36.560 --> 00:03:38.799
not create new buffers

00:03:38.799 --> 00:03:41.280
uh here is the first example if I

00:03:41.280 --> 00:03:41.840
execute

00:03:41.840 --> 00:03:45.920
this one this one is a hyperlink to the

00:03:45.920 --> 00:03:46.959
to the result

00:03:46.959 --> 00:03:50.720
of running this show comment date uh

00:03:50.720 --> 00:03:52.959
but instead of showing the result in the

00:03:52.959 --> 00:03:55.040
new buffer the result is shown

00:03:55.040 --> 00:03:58.959
here so if execute to this type link

00:03:58.959 --> 00:04:01.840
the result of date the output of data is

00:04:01.840 --> 00:04:04.239
shown in the echo area and if executed

00:04:04.239 --> 00:04:07.120
again

00:04:07.120 --> 00:04:09.519
it shows the result again and the result

00:04:09.519 --> 00:04:11.519
changes every second

00:04:11.519 --> 00:04:15.200
and if so this is a variant

00:04:15.200 --> 00:04:18.720
of fine sh

00:04:18.720 --> 00:04:21.840
uh find sh0 is the variant that

00:04:21.840 --> 00:04:24.960
just shows the output in the echo area

00:04:24.960 --> 00:04:28.080
and find sh shows the output in

00:04:28.080 --> 00:04:31.759
a new buffer

00:04:31.759 --> 00:04:35.919
and here is an example of a hyperlink

00:04:35.919 --> 00:04:37.520
that

00:04:37.520 --> 00:04:40.000
calls an external program if execute

00:04:40.000 --> 00:04:41.280
this

00:04:41.280 --> 00:04:43.759
it it calls google chrome to open a

00:04:43.759 --> 00:04:46.639
certain url

00:04:46.639 --> 00:04:51.520
here it is let's go back to mx

00:04:51.520 --> 00:04:55.280
if execute this happening here

00:04:55.280 --> 00:04:58.479
it invokes my favorite pdf viewer which

00:04:58.479 --> 00:04:58.880
is

00:04:58.880 --> 00:05:02.560
xpdf it makes xpdf

00:05:02.560 --> 00:05:07.759
open this pdf page it is pdf

00:05:07.759 --> 00:05:10.880
in this page and this other arguments

00:05:10.880 --> 00:05:15.199
are ignored let me show how it works

00:05:15.199 --> 00:05:19.120
here it is this is a an accept from a

00:05:19.120 --> 00:05:20.160
book

00:05:20.160 --> 00:05:22.639
so page 3 and the pdf corresponds to

00:05:22.639 --> 00:05:23.199
page

00:05:23.199 --> 00:05:26.400
113 in the book and

00:05:26.400 --> 00:05:29.360
this variant here of the hyperlink above

00:05:29.360 --> 00:05:31.759
it opens the pdf in a different way

00:05:31.759 --> 00:05:34.560
it runs a program called pdf to text on

00:05:34.560 --> 00:05:36.479
this pdf here

00:05:36.479 --> 00:05:39.600
and max takes the output of

00:05:39.600 --> 00:05:42.880
run epd after text on this pdf here

00:05:42.880 --> 00:05:46.080
and displays it in a buffer and now this

00:05:46.080 --> 00:05:47.280
postback list

00:05:47.280 --> 00:05:50.000
is interpreted in a different way this

00:05:50.000 --> 00:05:51.280
thing is interpreted

00:05:51.280 --> 00:05:54.400
as a as a number of a page and a max

00:05:54.400 --> 00:05:54.800
goes

00:05:54.800 --> 00:05:57.520
to page three by counting form feeds in

00:05:57.520 --> 00:05:58.240
the

00:05:58.240 --> 00:06:01.440
converted version of the pdf and then it

00:06:01.440 --> 00:06:03.039
searches for this string

00:06:03.039 --> 00:06:06.319
and in this three so let's execute this

00:06:06.319 --> 00:06:08.479
to see what happens

00:06:08.479 --> 00:06:10.800
here it is I opened the same page as

00:06:10.800 --> 00:06:14.800
before

00:06:14.800 --> 00:06:18.400
it starts with lecture one so

00:06:18.400 --> 00:06:20.720
the other hyperlink searched for this

00:06:20.720 --> 00:06:25.520
string and for this string here

00:06:25.520 --> 00:06:28.160
uh and this thing here is a hyperlink to

00:06:28.160 --> 00:06:30.400
video

00:06:30.400 --> 00:06:32.720
and when I executed it's going to open

00:06:32.720 --> 00:06:34.560
this video here

00:06:34.560 --> 00:06:37.759
at this time this time stamp let's see

00:06:37.759 --> 00:06:41.199
one two three one

00:06:41.199 --> 00:06:46.840
two three that's the way to do

00:06:46.840 --> 00:06:49.440
it

00:06:49.440 --> 00:06:52.560
and also some hyperlinks that that I

00:06:52.560 --> 00:06:53.680
defined

00:06:53.680 --> 00:06:56.479
uh they don't work like like usual

00:06:56.479 --> 00:06:58.160
hyperlinks they work more

00:06:58.160 --> 00:07:01.440
like browser buttons

00:07:01.440 --> 00:07:06.240
these buttons that appear in web pages

00:07:06.240 --> 00:07:09.120
in the sense that these buttons usually

00:07:09.120 --> 00:07:11.360
don't open a new page they usually

00:07:11.360 --> 00:07:13.280
just do something to change the current

00:07:13.280 --> 00:07:14.960
page

00:07:14.960 --> 00:07:18.160
if I execute this the action of this

00:07:18.160 --> 00:07:18.880
function

00:07:18.880 --> 00:07:22.240
eek is to uh

00:07:22.240 --> 00:07:24.800
it interprets this string as a series of

00:07:24.800 --> 00:07:25.919
keys and it

00:07:25.919 --> 00:07:28.840
acts as if the user had typed all these

00:07:28.840 --> 00:07:30.319
keys so

00:07:30.319 --> 00:07:33.680
if executed I get a hello in the next

00:07:33.680 --> 00:07:34.400
line

00:07:34.400 --> 00:07:36.639
if executed again I get another hello

00:07:36.639 --> 00:07:39.440
another hello hello hello etc etc

00:07:39.440 --> 00:07:44.319
let me undo this mess oops

00:07:44.319 --> 00:07:47.840
and here is another kind of button

00:07:47.840 --> 00:07:51.440
that defines a new function if I execute

00:07:51.440 --> 00:07:54.879
this sex here at this moment though is

00:07:54.879 --> 00:07:55.759
not defined

00:07:55.759 --> 00:07:57.919
and if I execute this mx is going to

00:07:57.919 --> 00:08:00.000
show me a message saying

00:08:00.000 --> 00:08:03.599
uh symbols function cell is not defined

00:08:03.599 --> 00:08:05.840
something like this

00:08:05.840 --> 00:08:09.520
but if I execute the defund

00:08:09.520 --> 00:08:12.960
this the action of this function o here

00:08:12.960 --> 00:08:16.479
is to run this which opens a certain

00:08:16.479 --> 00:08:18.960
directory

00:08:18.960 --> 00:08:21.840
let me go back and here is another

00:08:21.840 --> 00:08:23.039
button that defines

00:08:23.039 --> 00:08:25.840
several functions at the same time if I

00:08:25.840 --> 00:08:26.479
execute

00:08:26.479 --> 00:08:32.320
this

00:08:32.320 --> 00:08:35.599
note that the the result of executing

00:08:35.599 --> 00:08:36.719
this expression

00:08:36.719 --> 00:08:38.640
is the name of one of the functions that

00:08:38.640 --> 00:08:40.080
it defined

00:08:40.080 --> 00:08:42.800
that is this one here and let me explain

00:08:42.800 --> 00:08:43.360
the

00:08:43.360 --> 00:08:46.959
these examples uh one of the functions

00:08:46.959 --> 00:08:48.800
that this thing here defined

00:08:48.800 --> 00:08:51.839
is called find or git file where

00:08:51.839 --> 00:08:54.640
this or gate in the middle of its name

00:08:54.640 --> 00:08:55.040
is

00:08:55.040 --> 00:08:59.600
exactly this first argument to code cd

00:08:59.600 --> 00:09:02.640
and the action of running find or get

00:09:02.640 --> 00:09:03.120
file

00:09:03.120 --> 00:09:06.399
on a string like this is that

00:09:06.399 --> 00:09:09.680
find or get file takes the string

00:09:09.680 --> 00:09:13.360
and prepends this string to it

00:09:13.360 --> 00:09:15.600
this one here which is the second

00:09:15.600 --> 00:09:17.920
argument to called cd

00:09:17.920 --> 00:09:21.760
and then it executes find flying

00:09:21.760 --> 00:09:25.680
on the result which is this one

00:09:25.680 --> 00:09:28.320
and fine flying is my variant of find

00:09:28.320 --> 00:09:28.800
file

00:09:28.800 --> 00:09:32.080
that supports both spec lists

00:09:32.080 --> 00:09:36.880
and this function here that I'm

00:09:36.880 --> 00:09:39.600
referring to as a button it also defines

00:09:39.600 --> 00:09:41.200
a function called

00:09:41.200 --> 00:09:44.880
find audit node here where the or gate

00:09:44.880 --> 00:09:46.080
is the same string

00:09:46.080 --> 00:09:50.320
as here and this function opens a node

00:09:50.320 --> 00:09:54.160
of of an info manual this one

00:09:54.160 --> 00:09:57.920
this text here opens this node in the

00:09:57.920 --> 00:10:00.080
org manual

00:10:00.080 --> 00:10:03.519
it is equivalent to this text here

00:10:03.519 --> 00:10:06.800
so in the passage from this line to this

00:10:06.800 --> 00:10:08.720
line we prepended

00:10:08.720 --> 00:10:11.920
to the node name the name of the manual

00:10:11.920 --> 00:10:15.040
here and find node is my variant

00:10:15.040 --> 00:10:18.160
of this standard mx function here

00:10:18.160 --> 00:10:20.399
but find node also supports post

00:10:20.399 --> 00:10:23.519
backlists

00:10:23.519 --> 00:10:26.640
eevee also defines some functions that

00:10:26.640 --> 00:10:28.640
define shorter hyperlinks to pdfs and

00:10:28.640 --> 00:10:30.800
videos

00:10:30.800 --> 00:10:32.880
remember that this thing here is a

00:10:32.880 --> 00:10:34.720
shorter hyperlink to a

00:10:34.720 --> 00:10:37.120
to a file and this thing here is a

00:10:37.120 --> 00:10:39.040
shorter hyperlink to a node and

00:10:39.040 --> 00:10:43.200
in an mx menu in an info manual

00:10:43.200 --> 00:10:46.079
uh if we run this thing here this code

00:10:46.079 --> 00:10:47.279
pdf page

00:10:47.279 --> 00:10:50.240
this acts like a button that defines a

00:10:50.240 --> 00:10:52.880
certain function

00:10:52.880 --> 00:10:56.399
and this string this other sex

00:10:56.399 --> 00:10:59.040
here defines another function the first

00:10:59.040 --> 00:11:00.240
one defines

00:11:00.240 --> 00:11:03.040
the function find funcspivac page and

00:11:03.040 --> 00:11:05.360
the second one defines the function find

00:11:05.360 --> 00:11:09.279
from text when we run the

00:11:09.279 --> 00:11:12.240
file when we run findfoxpivotpage it

00:11:12.240 --> 00:11:13.440
opens

00:11:13.440 --> 00:11:17.600
this pdf here the name is

00:11:17.600 --> 00:11:20.640
quite long uh

00:11:20.640 --> 00:11:23.839
this example opens this pdf at page 8

00:11:23.839 --> 00:11:26.079
and searches for the string contents

00:11:26.079 --> 00:11:28.000
oops sorry in this case

00:11:28.000 --> 00:11:31.279
in this case it just ignores this string

00:11:31.279 --> 00:11:33.519
here it only considers

00:11:33.519 --> 00:11:37.360
the number of the page let's try

00:11:37.360 --> 00:11:42.640
ah we got

00:11:42.640 --> 00:11:45.200
here it is uh the contents of a book

00:11:45.200 --> 00:11:46.880
that is freely

00:11:46.880 --> 00:11:50.800
available uh here is another page of the

00:11:50.800 --> 00:11:51.760
book

00:11:51.760 --> 00:11:55.040
and if we execute the this happening

00:11:55.040 --> 00:11:55.519
here

00:11:55.519 --> 00:11:58.399
find funk's pivot text it converts the

00:11:58.399 --> 00:11:59.920
pdf to text

00:11:59.920 --> 00:12:03.040
and it searches for the page eight

00:12:03.040 --> 00:12:05.040
in it and then for the string this

00:12:05.040 --> 00:12:08.079
string here in page eight

00:12:08.079 --> 00:12:12.240
it takes a few seconds

00:12:12.240 --> 00:12:16.160
here it is so this is the

00:12:16.160 --> 00:12:20.320
ascii version of this contents page

00:12:20.320 --> 00:12:25.040
here uh note that this block here

00:12:25.040 --> 00:12:28.800
is a kind of an index to that book

00:12:28.800 --> 00:12:31.680
uh I have the full index somewhere but

00:12:31.680 --> 00:12:33.600
it's very long so I just copied a few

00:12:33.600 --> 00:12:34.959
lines here

00:12:34.959 --> 00:12:38.959
uh so this is a link to the to set

00:12:38.959 --> 00:12:42.160
section one chapter one this is the

00:12:42.160 --> 00:12:45.360
section 1.1

00:12:45.360 --> 00:12:48.959
section 1.1.1 and so on

00:12:48.959 --> 00:12:54.000
and here is a link to the index

00:12:54.000 --> 00:12:58.079
and here is a part of my index

00:12:58.079 --> 00:13:02.800
of positions in the video that we just

00:13:02.800 --> 00:13:03.279
saw

00:13:03.279 --> 00:13:05.760
that I think that are especially

00:13:05.760 --> 00:13:07.360
relevant

00:13:07.360 --> 00:13:10.639
uh so this I believe

00:13:10.639 --> 00:13:12.399
hyperlink is a kind of a button that

00:13:12.399 --> 00:13:14.160
defines this function here

00:13:14.160 --> 00:13:18.839
find punch and punch into the video

00:13:18.839 --> 00:13:27.600
uh

00:13:27.600 --> 00:13:31.440
and we can also use this for video

00:13:31.440 --> 00:13:33.360
tutorials for example

00:13:33.360 --> 00:13:37.200
this is a very good tutorial on on magic

00:13:37.200 --> 00:13:40.880
if we execute this

00:13:40.880 --> 00:13:42.560
then these functions are going to be

00:13:42.560 --> 00:13:44.800
defined and these functions open

00:13:44.800 --> 00:13:48.399
this tutorial on magic

00:13:48.399 --> 00:13:50.079
these are some of the positions in the

00:13:50.079 --> 00:13:51.839
tutorial that I found especially

00:13:51.839 --> 00:13:53.920
especially relevant this is a very dense

00:13:53.920 --> 00:13:55.600
tutorial I had to take notes of

00:13:55.600 --> 00:13:56.480
everything

00:13:56.480 --> 00:13:59.040
and I had to watch everything things

00:13:59.040 --> 00:14:00.800
several times

00:14:00.800 --> 00:14:03.440
and for example this is a link to the

00:14:03.440 --> 00:14:06.480
position in the tutorial that explains

00:14:06.480 --> 00:14:09.600
uh how in space

00:14:09.600 --> 00:14:12.880
space max magic magic

00:14:12.880 --> 00:14:17.600
interprets space gs magic status

00:14:17.600 --> 00:14:20.480
let's see beginners space gs to initiate

00:14:20.480 --> 00:14:22.320
magic's git status

00:14:22.320 --> 00:14:25.600
uh you can also do that's it

00:14:25.600 --> 00:14:28.800
and here are some examples that I

00:14:28.800 --> 00:14:32.160
took from somewhere else the video

00:14:32.160 --> 00:14:34.240
tutorials from

00:14:34.240 --> 00:14:43.519
ralph koenig about org mode

00:14:43.519 --> 00:14:45.519
now let me show how the functions that

00:14:45.519 --> 00:14:47.440
define this router hyperlinks are

00:14:47.440 --> 00:14:48.720
implemented

00:14:48.720 --> 00:14:51.199
the standard ways in max to define

00:14:51.199 --> 00:14:52.480
functions that define

00:14:52.480 --> 00:14:55.760
other functions would be with macros uh

00:14:55.760 --> 00:14:58.320
let's see an example this is a standard

00:14:58.320 --> 00:14:59.040
function that

00:14:59.040 --> 00:15:01.540
defines new functions

00:15:01.540 --> 00:15:02.959
[Music]

00:15:02.959 --> 00:15:06.959
and if we execute it one of the res

00:15:06.959 --> 00:15:09.040
its result is the last function that it

00:15:09.040 --> 00:15:10.160
defined which is

00:15:10.160 --> 00:15:13.920
e-grief which is here

00:15:13.920 --> 00:15:16.959
it's implemented as a macro we can

00:15:16.959 --> 00:15:19.360
look at the result of macro expand which

00:15:19.360 --> 00:15:20.880
is going to show

00:15:20.880 --> 00:15:23.519
show us the result of of this of the

00:15:23.519 --> 00:15:25.519
expansion of this

00:15:25.519 --> 00:15:28.000
instead of expanding and executing it

00:15:28.000 --> 00:15:28.959
just

00:15:28.959 --> 00:15:33.199
expands and shows us the result

00:15:33.199 --> 00:15:36.000
here the result is a bit messy is too

00:15:36.000 --> 00:15:37.600
big for

00:15:37.600 --> 00:15:40.959
humans to understand but we can run

00:15:40.959 --> 00:15:44.240
this or this text here that takes that

00:15:44.240 --> 00:15:47.519
that result and pretty prints it

00:15:47.519 --> 00:15:50.959
so this is the pretty printed version of

00:15:50.959 --> 00:15:54.000
uh this macro here

00:15:54.000 --> 00:15:57.600
we can see that it defines

00:15:57.600 --> 00:16:01.120
several functions here

00:16:01.120 --> 00:16:06.399
for example this one

00:16:06.399 --> 00:16:09.360
and this just as a curiosity is a link

00:16:09.360 --> 00:16:09.920
to

00:16:09.920 --> 00:16:13.839
the definition of cld struct

00:16:13.839 --> 00:16:16.880
and note that the code is huge uh

00:16:16.880 --> 00:16:19.199
well it's very well commented but it's

00:16:19.199 --> 00:16:20.079
it has

00:16:20.079 --> 00:16:23.759
lots of special cases it has uh

00:16:23.759 --> 00:16:26.959
it supports lots of constructions and so

00:16:26.959 --> 00:16:27.920
it's huge and

00:16:27.920 --> 00:16:30.639
it's very difficult to understand I mean

00:16:30.639 --> 00:16:33.360
I found it very difficult to understand

00:16:33.360 --> 00:16:35.040
and here's a link to document the

00:16:35.040 --> 00:16:37.759
documentation of cld struct

00:16:37.759 --> 00:16:42.000
here in the manual for

00:16:42.000 --> 00:16:46.000
cl which is a kind of support for some

00:16:46.000 --> 00:16:50.480
features of common lisp in the max

00:16:50.480 --> 00:16:53.600
so let's compare this standard way of

00:16:53.600 --> 00:16:54.639
defining

00:16:54.639 --> 00:16:56.560
functions that define new functions

00:16:56.560 --> 00:16:58.320
which is with macros

00:16:58.320 --> 00:17:01.680
with this I'm going to use a slogan

00:17:01.680 --> 00:17:04.160
repeatedly the slogan is I am a very bad

00:17:04.160 --> 00:17:06.319
programmer

00:17:06.319 --> 00:17:08.880
I'm a very bad programmer so when I was

00:17:08.880 --> 00:17:10.640
trying to create functions that would

00:17:10.640 --> 00:17:12.240
define new functions

00:17:12.240 --> 00:17:14.480
I found it easier to generally generate

00:17:14.480 --> 00:17:16.400
this code as text

00:17:16.400 --> 00:17:20.559
and then run read and eval in it

00:17:20.559 --> 00:17:23.199
the code cd that we saw in the previous

00:17:23.199 --> 00:17:24.640
section

00:17:24.640 --> 00:17:28.079
we can see the the code that it produces

00:17:28.079 --> 00:17:29.039
by

00:17:29.039 --> 00:17:31.039
making a copy of this line and

00:17:31.039 --> 00:17:33.280
prepending this string here to the name

00:17:33.280 --> 00:17:34.480
of the function

00:17:34.480 --> 00:17:36.720
so instead of running code cd we run

00:17:36.720 --> 00:17:38.400
find code cd

00:17:38.400 --> 00:17:41.280
and it creates a new temporary buffer

00:17:41.280 --> 00:17:44.400
with the code that

00:17:44.400 --> 00:17:47.760
code cd would execute

00:17:47.760 --> 00:17:50.320
so it's a series of the fonts and a few

00:17:50.320 --> 00:17:54.080
set cues and so on

00:17:54.080 --> 00:17:57.600
and this thing is implemented mostly as

00:17:57.600 --> 00:17:59.120
a template

00:17:59.120 --> 00:18:02.160
uh the lola the

00:18:02.160 --> 00:18:04.160
there's an inner function called ee

00:18:04.160 --> 00:18:06.240
called cd base that receives just

00:18:06.240 --> 00:18:08.799
these two arguments and it says

00:18:08.799 --> 00:18:10.640
essentially just runs the function

00:18:10.640 --> 00:18:14.320
e template zero on the string here and

00:18:14.320 --> 00:18:16.480
the things between curly braces are

00:18:16.480 --> 00:18:18.559
substituted by the values

00:18:18.559 --> 00:18:23.600
of these arguments here

00:18:23.600 --> 00:18:25.919
there's one part of the tutorial here

00:18:25.919 --> 00:18:28.480
that explains all these things

00:18:28.480 --> 00:18:31.039
uh except for the rationale for some

00:18:31.039 --> 00:18:32.559
design decisions

00:18:32.559 --> 00:18:35.360
and those design decisions are one of

00:18:35.360 --> 00:18:37.280
the many motivations for this talk but

00:18:37.280 --> 00:18:37.760
um

00:18:37.760 --> 00:18:39.679
we are I'm only going to explain these

00:18:39.679 --> 00:18:42.640
things in detail at the end

00:18:42.640 --> 00:18:48.480
which is kind of so on

00:18:48.480 --> 00:18:50.320
in the beginning I said that the three

00:18:50.320 --> 00:18:51.600
main keys of av

00:18:51.600 --> 00:18:56.000
are meta e meta k and meta j

00:18:56.000 --> 00:19:00.080
let's see now what met what meta j does

00:19:00.080 --> 00:19:01.520
uh but I need to start with some

00:19:01.520 --> 00:19:04.640
motivation uh the motivation is that we

00:19:04.640 --> 00:19:06.559
can define commands with very short

00:19:06.559 --> 00:19:08.240
names and actually I became kind of

00:19:08.240 --> 00:19:10.160
addicted to that

00:19:10.160 --> 00:19:13.200
this is an example of the fund that

00:19:13.200 --> 00:19:15.600
defines a comment with a very short name

00:19:15.600 --> 00:19:18.000
its name is just one letter e

00:19:18.000 --> 00:19:21.200
and I can invoke you invoke it with meta

00:19:21.200 --> 00:19:21.520
x

00:19:21.520 --> 00:19:24.720
e if I type meta xp

00:19:24.720 --> 00:19:27.360
now it opens a latex file that I'm

00:19:27.360 --> 00:19:31.130
working on

00:19:31.130 --> 00:19:32.559
[Music]

00:19:32.559 --> 00:19:35.200
and I create most of my latex files

00:19:35.200 --> 00:19:37.120
using

00:19:37.120 --> 00:19:39.200
template template-based functions like

00:19:39.200 --> 00:19:40.559
the the

00:19:40.559 --> 00:19:43.760
implementation of code cd above and

00:19:43.760 --> 00:19:46.559
this template-based functions create

00:19:46.559 --> 00:19:49.280
files with extension.tag

00:19:49.280 --> 00:19:51.280
that start with a series of the fonts

00:19:51.280 --> 00:19:53.919
and comments for example

00:19:53.919 --> 00:19:56.240
let's look at this example here if I

00:19:56.240 --> 00:19:58.320
execute find the attack links with this

00:19:58.320 --> 00:19:59.440
argument

00:19:59.440 --> 00:20:02.159
uh it's going it's going to do several

00:20:02.159 --> 00:20:03.440
things for creating a

00:20:03.440 --> 00:20:06.880
file called slash tmp slash forward

00:20:06.880 --> 00:20:08.320
attack

00:20:08.320 --> 00:20:11.200
and the header of that file is going to

00:20:11.200 --> 00:20:12.400
be this

00:20:12.400 --> 00:20:16.080
which starts with two and with three

00:20:16.080 --> 00:20:19.280
the fonts with functions with very short

00:20:19.280 --> 00:20:21.919
names and comments

00:20:21.919 --> 00:20:27.520
let's compare with the situation here

00:20:27.520 --> 00:20:32.799
in my file 2020 favorite conventions.tag

00:20:32.799 --> 00:20:34.640
I have this header here in which I

00:20:34.640 --> 00:20:37.039
define six functions with very short

00:20:37.039 --> 00:20:39.360
names

00:20:39.360 --> 00:20:41.919
and in this case here that is even

00:20:41.919 --> 00:20:44.799
explained in the tutorial

00:20:44.799 --> 00:20:48.000
this we have mnemonics for

00:20:48.000 --> 00:20:51.520
these short names here and c is compile

00:20:51.520 --> 00:20:54.799
d is display I mean display the pdf

00:20:54.799 --> 00:20:57.760
and e is added in the sense of make a

00:20:57.760 --> 00:20:58.159
max

00:20:58.159 --> 00:21:02.320
visit that file

00:21:02.320 --> 00:21:05.039
okay now I can explain what is meta j

00:21:05.039 --> 00:21:06.480
itself

00:21:06.480 --> 00:21:08.880
uh we just saw comments with very short

00:21:08.880 --> 00:21:09.600
names

00:21:09.600 --> 00:21:12.320
and the idea is behind meta j is that we

00:21:12.320 --> 00:21:14.840
can define comments with very short

00:21:14.840 --> 00:21:16.480
numbers

00:21:16.480 --> 00:21:19.679
let me explain this uh

00:21:19.679 --> 00:21:22.559
the short explanation for what meta j

00:21:22.559 --> 00:21:23.039
does

00:21:23.039 --> 00:21:25.360
is that it jumps to set certain

00:21:25.360 --> 00:21:27.039
predefined places

00:21:27.039 --> 00:21:29.760
in particular a meta j without a numeric

00:21:29.760 --> 00:21:30.799
argument

00:21:30.799 --> 00:21:33.280
takes us to a buffer with with the basic

00:21:33.280 --> 00:21:34.080
help

00:21:34.080 --> 00:21:37.679
and a list of the current age of targets

00:21:37.679 --> 00:21:39.760
and this is something that is a bit

00:21:39.760 --> 00:21:41.520
simpler to understand

00:21:41.520 --> 00:21:44.559
if we type meta five meta j

00:21:44.559 --> 00:21:47.919
then meta j runs this sex

00:21:47.919 --> 00:21:51.120
here that is associated to

00:21:51.120 --> 00:21:55.440
the argument five I say that the target

00:21:55.440 --> 00:21:59.039
for the argument five is this one

00:21:59.039 --> 00:22:01.520
and if the argument is true then the

00:22:01.520 --> 00:22:03.760
target associated to the to the true

00:22:03.760 --> 00:22:07.039
is this sex here that opens

00:22:07.039 --> 00:22:09.600
well this one opens the main tutorial vv

00:22:09.600 --> 00:22:10.240
and this one

00:22:10.240 --> 00:22:13.679
opens another tutorial

00:22:13.679 --> 00:22:15.679
this is a link to one of the tutorials

00:22:15.679 --> 00:22:20.480
of ev to the part that explains meta j

00:22:20.480 --> 00:22:22.559
I've copied the the main part of the

00:22:22.559 --> 00:22:24.559
text here

00:22:24.559 --> 00:22:28.159
the header the header that meta j shows

00:22:28.159 --> 00:22:31.360
let me show it very quickly here

00:22:31.360 --> 00:22:33.919
here is their header and here is their

00:22:33.919 --> 00:22:36.320
rest

00:22:36.320 --> 00:22:39.039
the header is very beginner friendly and

00:22:39.039 --> 00:22:40.000
if you're a beginner

00:22:40.000 --> 00:22:42.159
who only knows how to use meta e to

00:22:42.159 --> 00:22:44.559
execute and met

00:22:44.559 --> 00:22:46.799
this should be okay and meta k to go

00:22:46.799 --> 00:22:48.240
back

00:22:48.240 --> 00:22:52.320
then you can and should use that header

00:22:52.320 --> 00:22:56.720
I mean this header here

00:22:56.720 --> 00:22:59.360
as your main starting point and every

00:22:59.360 --> 00:23:00.799
time that you feel lost

00:23:00.799 --> 00:23:03.679
you can type meta j and to go back to

00:23:03.679 --> 00:23:04.799
that header

00:23:04.799 --> 00:23:07.039
and you can use its links to navigate to

00:23:07.039 --> 00:23:08.000
the documentation

00:23:08.000 --> 00:23:11.360
for max nav let me explain that

00:23:11.360 --> 00:23:14.799
uh this header here has several ellis

00:23:14.799 --> 00:23:15.679
hyperlinks

00:23:15.679 --> 00:23:19.039
one here one here

00:23:19.039 --> 00:23:22.400
one here one here and so on

00:23:22.400 --> 00:23:25.760
uh these ones are links to the

00:23:25.760 --> 00:23:29.280
to the intros which are the tutorials

00:23:29.280 --> 00:23:30.880
find if you quick enter in the main

00:23:30.880 --> 00:23:32.480
tutorial and find ev

00:23:32.480 --> 00:23:35.760
keys intro is a kind of tutorial that is

00:23:35.760 --> 00:23:36.720
an index of

00:23:36.720 --> 00:23:40.000
the main keys

00:23:40.000 --> 00:23:42.559
and after that we have an explanation of

00:23:42.559 --> 00:23:43.279
what some

00:23:43.279 --> 00:23:46.799
numeric prefixes do so if we type

00:23:46.799 --> 00:23:50.240
met one method j the effect of that is

00:23:50.240 --> 00:23:53.200
exactly the same as executing this and

00:23:53.200 --> 00:23:54.640
we can execute this

00:23:54.640 --> 00:24:00.159
with meta e also

00:24:00.159 --> 00:24:03.679
meta tube meta j runs this sex and

00:24:03.679 --> 00:24:06.960
I can also execute it with meta e

00:24:06.960 --> 00:24:10.559
here it is it's this uh

00:24:10.559 --> 00:24:14.240
intro this uh

00:24:14.240 --> 00:24:18.400
sandbox tutorial and

00:24:18.400 --> 00:24:24.640
here is another sandbox tutorial

00:24:24.640 --> 00:24:27.039
let me go back and then the

00:24:27.039 --> 00:24:28.720
documentation says that

00:24:28.720 --> 00:24:30.880
that header the header that is beginner

00:24:30.880 --> 00:24:31.760
friendly

00:24:31.760 --> 00:24:33.679
is followed by a section that is very

00:24:33.679 --> 00:24:35.520
beginner unfriendly

00:24:35.520 --> 00:24:37.600
that contains a series of the fonts like

00:24:37.600 --> 00:24:40.400
these ones

00:24:40.400 --> 00:24:43.440
here the last line of the header is this

00:24:43.440 --> 00:24:44.640
comment here

00:24:44.640 --> 00:24:46.720
and then we have several defense like

00:24:46.720 --> 00:24:48.559
this

00:24:48.559 --> 00:24:51.440
let me explain how these things work

00:24:51.440 --> 00:24:53.840
technically what happens when we type

00:24:53.840 --> 00:24:57.360
meta j without any arguments is that it

00:24:57.360 --> 00:24:57.840
runs

00:24:57.840 --> 00:25:00.960
eu jump with argument neil and then

00:25:00.960 --> 00:25:04.640
this runs 5 e jumps

00:25:04.640 --> 00:25:06.480
when I run meta j with a numeric

00:25:06.480 --> 00:25:08.000
argument for example

00:25:08.000 --> 00:25:11.120
with argument 5 it runs a jump

00:25:11.120 --> 00:25:14.400
5 and e jump five

00:25:14.400 --> 00:25:17.679
uh concatenates this five one

00:25:17.679 --> 00:25:20.400
to make a name of a function this

00:25:20.400 --> 00:25:21.679
function here

00:25:21.679 --> 00:25:24.320
and it executes this function e jump

00:25:24.320 --> 00:25:24.720
five

00:25:24.720 --> 00:25:28.880
you jump uh dash five

00:25:28.880 --> 00:25:31.919
and eu jump dash five is

00:25:31.919 --> 00:25:35.520
executes find ev equity intro

00:25:35.520 --> 00:25:39.360
if I execute just meta j

00:25:39.360 --> 00:25:41.440
the section that shows the current age

00:25:41.440 --> 00:25:43.919
on targets

00:25:43.919 --> 00:25:47.120
has a line for e job five this is that

00:25:47.120 --> 00:25:48.159
is exactly the

00:25:48.159 --> 00:25:52.400
thing that I was explaining before

00:25:52.400 --> 00:25:54.840
so we can use meta j to navigate the

00:25:54.840 --> 00:25:59.520
tutorials and we can copy the links

00:25:59.520 --> 00:26:03.440
sorry we can copy links to the to

00:26:03.440 --> 00:26:07.919
tutorials to our notes

00:26:07.919 --> 00:26:11.840
oh sorry this has some typos

00:26:11.840 --> 00:26:14.880
for example if I execute this

00:26:14.880 --> 00:26:18.080
I go to a section of this tutorial here

00:26:18.080 --> 00:26:20.640
that explains the main keys of ev

00:26:20.640 --> 00:26:24.320
and these things are hyperlinks I can

00:26:24.320 --> 00:26:26.240
mark a hyperlink like this it is just

00:26:26.240 --> 00:26:27.440
plain text and I

00:26:27.440 --> 00:26:30.559
can copy it to my notes and the idea is

00:26:30.559 --> 00:26:31.760
that every time

00:26:31.760 --> 00:26:33.520
every time that I find something that is

00:26:33.520 --> 00:26:35.520
interesting I can create a hyperlink to

00:26:35.520 --> 00:26:36.240
it

00:26:36.240 --> 00:26:38.720
and I can put these links in my notes so

00:26:38.720 --> 00:26:40.799
I can navigate back

00:26:40.799 --> 00:26:42.960
to all the interesting positions very

00:26:42.960 --> 00:26:48.799
quickly

00:26:48.799 --> 00:26:51.760
okay next feature if we type meta

00:26:51.760 --> 00:26:54.080
uppercase j

00:26:54.080 --> 00:26:57.600
uh then

00:26:57.600 --> 00:27:00.080
this this is a function that transforms

00:27:00.080 --> 00:27:03.679
the current line in a certain way

00:27:03.679 --> 00:27:06.080
let me give an example let me isolate

00:27:06.080 --> 00:27:07.360
this and let me create

00:27:07.360 --> 00:27:09.919
duplicate this line to to make clear

00:27:09.919 --> 00:27:11.039
what happens

00:27:11.039 --> 00:27:14.240
if I type meta uppercase j here

00:27:14.240 --> 00:27:16.880
this line here becomes the fund for a

00:27:16.880 --> 00:27:17.440
jump

00:27:17.440 --> 00:27:21.200
6 and the target of this e-jump

00:27:21.200 --> 00:27:24.799
is exactly this sex here

00:27:24.799 --> 00:27:28.559
let me undo this mess

00:27:28.559 --> 00:27:31.360
and if the first word in the line is not

00:27:31.360 --> 00:27:32.840
a number for example

00:27:32.840 --> 00:27:36.240
here let me do the same thing

00:27:36.240 --> 00:27:39.039
duplicate the line and type meta

00:27:39.039 --> 00:27:41.200
uppercase j

00:27:41.200 --> 00:27:44.240
then mat uppercase j converts that to a

00:27:44.240 --> 00:27:45.600
defund that defines

00:27:45.600 --> 00:27:49.440
a function with a very short name

00:27:49.440 --> 00:27:52.720
and this function with a very short name

00:27:52.720 --> 00:27:56.720
opens this file here in the directory

00:27:56.720 --> 00:27:59.360
with the copy of the the git repository

00:27:59.360 --> 00:28:01.360
for org mode

00:28:01.360 --> 00:28:05.360
let me undo the mass again

00:28:05.360 --> 00:28:09.120
oops

00:28:09.120 --> 00:28:14.640
that's it

00:28:14.640 --> 00:28:17.760
meta uppercase j is a

00:28:17.760 --> 00:28:21.279
particular case of of something that

00:28:21.279 --> 00:28:24.559
I use a lot in eevee I have if he has

00:28:24.559 --> 00:28:25.279
lots of

00:28:25.279 --> 00:28:28.799
comments that sorry key sequences

00:28:28.799 --> 00:28:31.780
that are like meta uppercase letter and

00:28:31.780 --> 00:28:33.200
[Music]

00:28:33.200 --> 00:28:35.279
almost all of them operate on the

00:28:35.279 --> 00:28:37.279
current line and transform the current

00:28:37.279 --> 00:28:38.880
line in certain way

00:28:38.880 --> 00:28:42.000
for example this is a file name

00:28:42.000 --> 00:28:45.360
and if I type meta uppercase f here

00:28:45.360 --> 00:28:48.640
it becomes a link to that file this is

00:28:48.640 --> 00:28:50.000
the name of a month page

00:28:50.000 --> 00:28:53.600
and if I type meta uppercase m here

00:28:53.600 --> 00:28:55.760
it converts that to the link to a month

00:28:55.760 --> 00:28:58.080
page and this is a shell command

00:28:58.080 --> 00:29:01.679
and if I type meta uppercase s here

00:29:01.679 --> 00:29:04.960
it converts that to a link to a

00:29:04.960 --> 00:29:08.720
to find fan shell

00:29:08.720 --> 00:29:11.919
and until a few years ago these

00:29:11.919 --> 00:29:12.960
functions

00:29:12.960 --> 00:29:16.159
with matter uppercase letter were half

00:29:16.159 --> 00:29:18.080
of my main ways of creating sex

00:29:18.080 --> 00:29:18.880
hyperlinks

00:29:18.880 --> 00:29:21.039
with few key strokes in the beginning of

00:29:21.039 --> 00:29:22.399
course I had to create my

00:29:22.399 --> 00:29:25.600
sex pipelines by typing each character

00:29:25.600 --> 00:29:28.640
but uh after some time and decided that

00:29:28.640 --> 00:29:31.520
I needed something more efficient

00:29:31.520 --> 00:29:34.559
so this is end of part one of the two of

00:29:34.559 --> 00:29:34.960
the

00:29:34.960 --> 00:29:38.480
presentation

00:29:38.480 --> 00:29:40.640
so this is part two of the presentation

00:29:40.640 --> 00:29:41.760
and the main theme

00:29:41.760 --> 00:29:44.320
here is the standard describe key

00:29:44.320 --> 00:29:46.320
function that comes with the max

00:29:46.320 --> 00:29:49.200
and my variant of it the thing is that

00:29:49.200 --> 00:29:50.960
the standard described key in max

00:29:50.960 --> 00:29:53.120
is user friendly but it is hacker

00:29:53.120 --> 00:29:55.600
unfriendly well I felt so

00:29:55.600 --> 00:29:58.559
and when I tried to complement it by by

00:29:58.559 --> 00:30:00.799
writing a hacker friendly version of it

00:30:00.799 --> 00:30:03.120
that produced the sex hyperlinks that I

00:30:03.120 --> 00:30:03.919
needed

00:30:03.919 --> 00:30:05.440
I got something that I found really

00:30:05.440 --> 00:30:07.039
lovely and

00:30:07.039 --> 00:30:09.679
several of the main designs design

00:30:09.679 --> 00:30:12.480
decisions of eev can be seen there

00:30:12.480 --> 00:30:14.320
but when I showed my variants to other

00:30:14.320 --> 00:30:15.520
people they hated it

00:30:15.520 --> 00:30:17.760
they felt that it was totally against

00:30:17.760 --> 00:30:19.360
their notions of

00:30:19.360 --> 00:30:23.440
user friendliness

00:30:23.440 --> 00:30:25.760
okay so let's see the standard describe

00:30:25.760 --> 00:30:26.799
key if I run

00:30:26.799 --> 00:30:30.159
this hyperlink here I get

00:30:30.159 --> 00:30:32.399
this the result of running the scribe

00:30:32.399 --> 00:30:34.399
key on the key down

00:30:34.399 --> 00:30:36.399
and this is a big buffer with some

00:30:36.399 --> 00:30:38.080
things in italics

00:30:38.080 --> 00:30:41.360
and some hyperlinks here these

00:30:41.360 --> 00:30:43.120
hyperlinks are standard in the sense

00:30:43.120 --> 00:30:43.679
that

00:30:43.679 --> 00:30:46.240
the targets are not visible and they are

00:30:46.240 --> 00:30:47.760
implemented using

00:30:47.760 --> 00:30:50.799
buttons in a max lisp this section of

00:30:50.799 --> 00:30:51.200
the

00:30:51.200 --> 00:30:53.919
mx list manual describes how buttons

00:30:53.919 --> 00:30:56.799
work

00:30:56.799 --> 00:31:00.640
and the the source code is

00:31:00.640 --> 00:31:03.440
quite difficult I mean when I was

00:31:03.440 --> 00:31:04.240
starting to

00:31:04.240 --> 00:31:06.559
to try to decipher this when I was a

00:31:06.559 --> 00:31:07.600
beginner

00:31:07.600 --> 00:31:11.200
using max 19.34 I felt that this

00:31:11.200 --> 00:31:12.320
described key was

00:31:12.320 --> 00:31:15.519
very difficult to understand uh

00:31:15.519 --> 00:31:20.080
and I felt that the the designers the

00:31:20.080 --> 00:31:22.640
the people who wrote it were sacrificing

00:31:22.640 --> 00:31:23.679
too much of the

00:31:23.679 --> 00:31:26.159
hacker friendliness that I was expecting

00:31:26.159 --> 00:31:31.279
from it to make it beginner friendly

00:31:31.279 --> 00:31:33.600
let me explain what are the the problems

00:31:33.600 --> 00:31:34.799
with the standard

00:31:34.799 --> 00:31:36.559
the describe key if we think that

00:31:36.559 --> 00:31:38.640
hyperlinks are things like this

00:31:38.640 --> 00:31:41.600
with the target and the text then in the

00:31:41.600 --> 00:31:43.600
button hyperlinks of describe key

00:31:43.600 --> 00:31:47.120
this three bad things happen first

00:31:47.120 --> 00:31:49.120
it is hard to extract the target from

00:31:49.120 --> 00:31:51.200
the hyperlink second it is hard to

00:31:51.200 --> 00:31:52.000
recreate

00:31:52.000 --> 00:31:54.480
a list of code that would go to that

00:31:54.480 --> 00:31:55.440
target

00:31:55.440 --> 00:31:57.519
and third it is hard to copy the full

00:31:57.519 --> 00:31:59.840
hyperlink including the targets to other

00:31:59.840 --> 00:32:00.640
buffers

00:32:00.640 --> 00:32:04.960
I only knew how to copy the text

00:32:04.960 --> 00:32:07.279
when I was trying to decipher what

00:32:07.279 --> 00:32:09.039
described key was doing

00:32:09.039 --> 00:32:11.679
I created lots of hyperlinks like this

00:32:11.679 --> 00:32:12.159
to

00:32:12.159 --> 00:32:14.960
inspect the text properties and things

00:32:14.960 --> 00:32:16.159
like that

00:32:16.159 --> 00:32:18.480
for example in the description of the

00:32:18.480 --> 00:32:20.000
key down

00:32:20.000 --> 00:32:23.600
here we have a button that points to

00:32:23.600 --> 00:32:26.799
simple dotel

00:32:26.799 --> 00:32:29.679
the text of that button is simple.l this

00:32:29.679 --> 00:32:31.600
hyperlinks goes to the

00:32:31.600 --> 00:32:34.320
to the middle of this button hyperlink

00:32:34.320 --> 00:32:35.519
here

00:32:35.519 --> 00:32:39.120
uh this hyperlink here

00:32:39.120 --> 00:32:41.919
goes to the middle of the button of this

00:32:41.919 --> 00:32:43.279
button hyperlink

00:32:43.279 --> 00:32:46.240
and then inspects its text properties

00:32:46.240 --> 00:32:47.679
and then goes to

00:32:47.679 --> 00:32:51.679
this section here of the description

00:32:51.679 --> 00:32:53.679
so this is a high level description of

00:32:53.679 --> 00:32:56.159
the text properties

00:32:56.159 --> 00:32:58.000
I mean the text properties that make it

00:32:58.000 --> 00:33:00.000
a button and this is a

00:33:00.000 --> 00:33:02.480
lower level description of the these

00:33:02.480 --> 00:33:04.320
text properties

00:33:04.320 --> 00:33:08.000
and the button that points to

00:33:08.000 --> 00:33:11.440
forward line sorry the the button that

00:33:11.440 --> 00:33:11.919
whose

00:33:11.919 --> 00:33:14.399
text is forward line this one is

00:33:14.399 --> 00:33:16.480
slightly different

00:33:16.480 --> 00:33:19.039
this hyperlink here goes to the middle

00:33:19.039 --> 00:33:21.200
of that button

00:33:21.200 --> 00:33:24.559
and this hyperlink goes to the mid to

00:33:24.559 --> 00:33:25.760
the middle of that button

00:33:25.760 --> 00:33:28.559
inspects its text properties and go to

00:33:28.559 --> 00:33:29.360
the section

00:33:29.360 --> 00:33:32.559
of this button of this help

00:33:32.559 --> 00:33:35.760
uh buffer here that describe the the

00:33:35.760 --> 00:33:36.399
button

00:33:36.399 --> 00:33:39.120
and the lower level view of the text

00:33:39.120 --> 00:33:41.679
properties

00:33:41.679 --> 00:33:45.519
so I started to with things like this

00:33:45.519 --> 00:33:47.519
to understand what these buttons were

00:33:47.519 --> 00:33:50.159
doing and I was able to figure out how

00:33:50.159 --> 00:33:50.960
these things are

00:33:50.960 --> 00:33:53.120
implemented and describe key and then

00:33:53.120 --> 00:33:55.519
similar help functions in max

00:33:55.519 --> 00:33:57.760
and I discovered that one of the main

00:33:57.760 --> 00:34:00.000
lower level functions that a max used

00:34:00.000 --> 00:34:01.360
for this

00:34:01.360 --> 00:34:04.080
is a function called find function no

00:34:04.080 --> 00:34:05.279
select

00:34:05.279 --> 00:34:08.240
if I run find function no select on next

00:34:08.240 --> 00:34:09.929
line

00:34:09.929 --> 00:34:11.200
[Music]

00:34:11.200 --> 00:34:14.240
it returns a pair

00:34:14.240 --> 00:34:18.079
a cons made of a buffer and a position

00:34:18.079 --> 00:34:20.560
so I created functions that would that

00:34:20.560 --> 00:34:21.679
would

00:34:21.679 --> 00:34:24.320
uh follow this that would open that

00:34:24.320 --> 00:34:25.119
buffer

00:34:25.119 --> 00:34:28.320
in that position and then this is a

00:34:28.320 --> 00:34:29.679
postback list

00:34:29.679 --> 00:34:31.679
so we could go to these positions and

00:34:31.679 --> 00:34:33.919
then search for this string and another

00:34:33.919 --> 00:34:36.000
string and another string and so on

00:34:36.000 --> 00:34:40.320
so this goes to the definition of find a

00:34:40.320 --> 00:34:41.040
function

00:34:41.040 --> 00:34:44.159
and then to a to a string

00:34:44.159 --> 00:34:47.919
after it and I use these things to

00:34:47.919 --> 00:34:49.040
implement my own

00:34:49.040 --> 00:34:51.839
functions that pointed to the same the

00:34:51.839 --> 00:34:52.960
same targets

00:34:52.960 --> 00:34:55.440
as the button hyperlinks and describe

00:34:55.440 --> 00:35:00.240
key

00:35:00.240 --> 00:35:03.200
again let me show the comparison this is

00:35:03.200 --> 00:35:05.599
the standard describe key

00:35:05.599 --> 00:35:10.480
here and this is my variant

00:35:10.480 --> 00:35:13.839
uh it creates a buffer with links

00:35:13.839 --> 00:35:17.680
with the list hyperlinks about this key

00:35:17.680 --> 00:35:20.960
we get this so each one of these

00:35:20.960 --> 00:35:22.960
functions is either a blank line

00:35:22.960 --> 00:35:28.720
or a or an ellipse hyperlink

00:35:28.720 --> 00:35:31.760
here is a slight variant of the of the

00:35:31.760 --> 00:35:32.880
function

00:35:32.880 --> 00:35:35.920
find e key links above in this variant

00:35:35.920 --> 00:35:38.079
the argument is a string that has to be

00:35:38.079 --> 00:35:39.280
processed by

00:35:39.280 --> 00:35:42.400
read cbd macro to convert it to the

00:35:42.400 --> 00:35:45.280
lower level format

00:35:45.280 --> 00:35:48.160
and note that these functions here that

00:35:48.160 --> 00:35:49.040
I wrote

00:35:49.040 --> 00:35:51.440
they display temporary buffers with no

00:35:51.440 --> 00:35:53.599
help at all

00:35:53.599 --> 00:35:57.359
uh to be honest there's a link to a

00:35:57.359 --> 00:35:58.560
tutorial here but

00:35:58.560 --> 00:36:01.680
this is a recent edition so let's ignore

00:36:01.680 --> 00:36:03.200
this

00:36:03.200 --> 00:36:06.640
uh they they display temporary buffers

00:36:06.640 --> 00:36:08.320
with no help at all just lots of

00:36:08.320 --> 00:36:09.520
hyperlinks

00:36:09.520 --> 00:36:11.599
and these hyperlinks can be they are

00:36:11.599 --> 00:36:13.359
very hacker friendly in the sense that

00:36:13.359 --> 00:36:15.040
they can be followed with

00:36:15.040 --> 00:36:17.520
metae they can be copied to other

00:36:17.520 --> 00:36:19.920
buffers because they are plain text

00:36:19.920 --> 00:36:23.680
because they are just sex

00:36:23.680 --> 00:36:26.240
and they can be inspected in the sense

00:36:26.240 --> 00:36:28.000
that

00:36:28.000 --> 00:36:32.400
for example here

00:36:32.400 --> 00:36:34.079
we have a hyperlink to a function that

00:36:34.079 --> 00:36:35.520
we

00:36:35.520 --> 00:36:37.599
it may be difficult to figure out what

00:36:37.599 --> 00:36:39.200
this function does

00:36:39.200 --> 00:36:42.320
but we can go to that position and then

00:36:42.320 --> 00:36:45.839
type ctrl h f to see the descript

00:36:45.839 --> 00:36:48.240
description of this function

00:36:48.240 --> 00:36:52.400
and here is a hyperlink to

00:36:52.400 --> 00:36:53.890
the does that

00:36:53.890 --> 00:36:56.000
[Music]

00:36:56.000 --> 00:37:00.160
in my syntax say

00:37:00.160 --> 00:37:02.800
and this list of hyperlinks were

00:37:02.800 --> 00:37:04.480
generated by

00:37:04.480 --> 00:37:08.000
this code here that just just uh

00:37:08.000 --> 00:37:11.119
used a back quote to to generate

00:37:11.119 --> 00:37:14.640
lists of sex

00:37:14.640 --> 00:37:18.240
and I I felt that this function here

00:37:18.240 --> 00:37:21.040
uh that just generated this list was

00:37:21.040 --> 00:37:22.160
very easy to understand

00:37:22.160 --> 00:37:24.960
and to modify so this was hacker

00:37:24.960 --> 00:37:28.480
friendly in the way that I wanted

00:37:28.480 --> 00:37:31.599
and so I started using this

00:37:31.599 --> 00:37:34.079
and this idea of using buffers with sex

00:37:34.079 --> 00:37:36.800
fiber links and no help violated

00:37:36.800 --> 00:37:38.720
all the notions of user friendliness

00:37:38.720 --> 00:37:40.079
that I knew so I was

00:37:40.079 --> 00:37:42.000
exploring some something new at that

00:37:42.000 --> 00:37:46.160
time and this is the end of part two

00:37:46.160 --> 00:37:49.359
part three of this presentation is uh

00:37:49.359 --> 00:37:52.240
about the killer features of ev or why

00:37:52.240 --> 00:37:54.800
everybody should use av or at least have

00:37:54.800 --> 00:37:57.920
eev installed even if they think the tv

00:37:57.920 --> 00:37:59.280
is too weird

00:37:59.280 --> 00:38:01.440
so this is a very quick listing eevee

00:38:01.440 --> 00:38:03.440
has lease hyperlinks which are super

00:38:03.440 --> 00:38:04.240
nice

00:38:04.240 --> 00:38:06.560
it comes with lots of tutorials the main

00:38:06.560 --> 00:38:07.599
one here

00:38:07.599 --> 00:38:10.800
explains all the main features

00:38:10.800 --> 00:38:14.079
uh there's also a tutorial with that's

00:38:14.079 --> 00:38:15.040
an index of

00:38:15.040 --> 00:38:18.079
all the other tutorials here

00:38:18.079 --> 00:38:21.680
many many many tutorials uh if we forget

00:38:21.680 --> 00:38:24.079
everything we can just type meta j

00:38:24.079 --> 00:38:27.280
and remember that this this part here is

00:38:27.280 --> 00:38:28.880
beginner friendly and the rest is

00:38:28.880 --> 00:38:30.839
beginner

00:38:30.839 --> 00:38:32.960
unfriendly

00:38:32.960 --> 00:38:38.320
there's a tutorial on max list here

00:38:38.320 --> 00:38:41.920
it mainly explains how to understand

00:38:41.920 --> 00:38:44.640
a lisp code which is much easier than

00:38:44.640 --> 00:38:46.320
it's much easier to understand the lisp

00:38:46.320 --> 00:38:47.040
code and

00:38:47.040 --> 00:38:48.800
then to understand how to program in a

00:38:48.800 --> 00:38:50.160
lisp and

00:38:50.160 --> 00:38:53.440
most people are only going to need this

00:38:53.440 --> 00:38:55.920
uh ev is very easy to install it's in

00:38:55.920 --> 00:38:58.240
helper so we just need to do

00:38:58.240 --> 00:39:00.560
this thing here and it's very

00:39:00.560 --> 00:39:03.520
non-invasive

00:39:03.520 --> 00:39:06.079
uh years ago several years ago it was a

00:39:06.079 --> 00:39:08.000
very invasive package but then I changed

00:39:08.000 --> 00:39:08.960
everything

00:39:08.960 --> 00:39:13.520
now uh if we toggle ev mode on and off

00:39:13.520 --> 00:39:16.640
what's going to happen is just that the

00:39:16.640 --> 00:39:20.000
evk map key map becomes activated or

00:39:20.000 --> 00:39:21.599
deactivated

00:39:21.599 --> 00:39:24.720
and when we install the evita

00:39:24.720 --> 00:39:28.320
I mean when we require the only things

00:39:28.320 --> 00:39:28.640
that

00:39:28.640 --> 00:39:32.640
happens globally distance here

00:39:32.640 --> 00:39:34.480
several functions and variables become

00:39:34.480 --> 00:39:36.240
defined all of them have

00:39:36.240 --> 00:39:40.079
standard prefixes except for one

00:39:40.079 --> 00:39:43.040
three characters are changed in the

00:39:43.040 --> 00:39:44.480
standard display table

00:39:44.480 --> 00:39:48.640
to make them appear as colored glyphs

00:39:48.640 --> 00:39:52.079
the red star and two and the open

00:39:52.079 --> 00:39:54.160
double angle brackets and the closed

00:39:54.160 --> 00:39:58.160
double angle brackets

00:39:58.160 --> 00:40:01.359
and two environment variables are set

00:40:01.359 --> 00:40:04.560
and this is a trivial technicality

00:40:04.560 --> 00:40:07.599
we just run a def advice

00:40:07.599 --> 00:40:10.160
around one function that that is used by

00:40:10.160 --> 00:40:10.800
man

00:40:10.800 --> 00:40:14.240
justice also

00:40:14.240 --> 00:40:16.720
eevee has a very high discoverability

00:40:16.720 --> 00:40:18.400
factor

00:40:18.400 --> 00:40:21.839
and there's a way to create a very easy

00:40:21.839 --> 00:40:25.200
way to create a hyperlink to here

00:40:25.200 --> 00:40:27.760
uh I do not have time to show this now

00:40:27.760 --> 00:40:29.760
but for example if I'm

00:40:29.760 --> 00:40:32.960
here in a tutorial and I think that that

00:40:32.960 --> 00:40:34.480
this

00:40:34.480 --> 00:40:36.240
section is something interesting and I

00:40:36.240 --> 00:40:39.520
want to create a hyperlink to it

00:40:39.520 --> 00:40:41.200
I just have to type a certain key

00:40:41.200 --> 00:40:43.040
sequence here

00:40:43.040 --> 00:40:46.800
and here I got a hyperlink that I can

00:40:46.800 --> 00:40:50.400
copy to my notes and this hyperlink goes

00:40:50.400 --> 00:40:52.260
to that section

00:40:52.260 --> 00:40:58.240
[Music]

00:40:58.240 --> 00:41:00.720
we have hyperlinks that point to

00:41:00.720 --> 00:41:02.319
specific positions in

00:41:02.319 --> 00:41:05.839
pdf documents and nvidia files here

00:41:05.839 --> 00:41:09.119
this one opens a pdf and displays it

00:41:09.119 --> 00:41:09.680
this one

00:41:09.680 --> 00:41:13.920
opens a pdf and converts it to text

00:41:13.920 --> 00:41:16.720
and this one opens the video in a

00:41:16.720 --> 00:41:18.400
certain position

00:41:18.400 --> 00:41:20.480
and we also have a way to control

00:41:20.480 --> 00:41:22.079
shell-like programs

00:41:22.079 --> 00:41:25.280
uh in my presentation of the last year I

00:41:25.280 --> 00:41:27.440
spent one third of the presentation

00:41:27.440 --> 00:41:29.520
explaining this and I think that I gave

00:41:29.520 --> 00:41:31.839
a very good demonstration there

00:41:31.839 --> 00:41:35.680
the demonstration is here

00:41:35.680 --> 00:41:38.800
we can go to the web page and go to

00:41:38.800 --> 00:41:41.839
this section of the web page

00:41:41.839 --> 00:41:47.680
and start by this point

00:41:47.680 --> 00:41:51.440
and here we have an explanation and so

00:41:51.440 --> 00:41:55.920
on whatever

00:41:55.920 --> 00:41:58.720
and I've already mentioned this before

00:41:58.720 --> 00:41:59.200
uh

00:41:59.200 --> 00:42:01.119
eevee comes with a very nice elise

00:42:01.119 --> 00:42:02.240
tutorial

00:42:02.240 --> 00:42:04.240
so that's it this is the end of part

00:42:04.240 --> 00:42:05.599
three

00:42:05.599 --> 00:42:07.359
so this is the last part of my

00:42:07.359 --> 00:42:09.839
presentation and it's about the title of

00:42:09.839 --> 00:42:10.160
the

00:42:10.160 --> 00:42:11.839
the presentation I called the

00:42:11.839 --> 00:42:13.599
presentation why

00:42:13.599 --> 00:42:16.560
most of the best features in eevee look

00:42:16.560 --> 00:42:16.960
like

00:42:16.960 --> 00:42:20.480
like five minute hacks uh I've already

00:42:20.480 --> 00:42:20.960
run off

00:42:20.960 --> 00:42:23.920
out of time so I have to to skip this

00:42:23.920 --> 00:42:24.800
first

00:42:24.800 --> 00:42:28.720
part here in which I describe how I

00:42:28.720 --> 00:42:31.280
was exposed to several different notions

00:42:31.280 --> 00:42:33.440
of user friendliness

00:42:33.440 --> 00:42:35.920
and how the one that really blew my mind

00:42:35.920 --> 00:42:37.119
was the one in

00:42:37.119 --> 00:42:41.680
in a certain uh fought environment

00:42:41.680 --> 00:42:44.160
uh and let me make the long long story

00:42:44.160 --> 00:42:46.560
very very short

00:42:46.560 --> 00:42:49.280
uh in all this process I switched from

00:42:49.280 --> 00:42:49.680
from

00:42:49.680 --> 00:42:52.079
the belief that the user was always

00:42:52.079 --> 00:42:52.960
someone else

00:42:52.960 --> 00:42:55.359
someone external and that that I always

00:42:55.359 --> 00:42:57.040
had to write my programs for

00:42:57.040 --> 00:43:00.079
this external user I switched

00:43:00.079 --> 00:43:02.240
from from that to the belief that I am

00:43:02.240 --> 00:43:03.200
the user

00:43:03.200 --> 00:43:05.839
and I can play with the interface that I

00:43:05.839 --> 00:43:07.040
want I can

00:43:07.040 --> 00:43:10.079
write programs which that

00:43:10.079 --> 00:43:12.079
that only I am going to understand I can

00:43:12.079 --> 00:43:14.240
experiment with hundreds of interfaces

00:43:14.240 --> 00:43:16.079
and then select the best ones

00:43:16.079 --> 00:43:18.720
and document them and then share them

00:43:18.720 --> 00:43:20.960
with other people

00:43:20.960 --> 00:43:23.520
who are also experimenting with

00:43:23.520 --> 00:43:24.720
interfaces in their

00:43:24.720 --> 00:43:28.880
own ways and so eevee has

00:43:28.880 --> 00:43:31.119
lots of things that are user-friendly in

00:43:31.119 --> 00:43:33.440
these unusual ways that I've explained

00:43:33.440 --> 00:43:34.880
before

00:43:34.880 --> 00:43:37.760
and uh and if we disconsider that this

00:43:37.760 --> 00:43:40.319
notion of user friendliness is valid

00:43:40.319 --> 00:43:44.079
then this implement these things that av

00:43:44.079 --> 00:43:45.119
implement they are

00:43:45.119 --> 00:43:47.280
user friendly and hacker friendly at the

00:43:47.280 --> 00:43:48.800
same time

00:43:48.800 --> 00:43:51.119
and let me show one example this is one

00:43:51.119 --> 00:43:51.920
this is

00:43:51.920 --> 00:43:54.640
one that really took me one only five

00:43:54.640 --> 00:43:56.640
minutes to implement

00:43:56.640 --> 00:43:59.599
uh at one point a few months ago I

00:43:59.599 --> 00:44:00.640
discovered

00:44:00.640 --> 00:44:04.240
that sasha chewer's weekly posts about

00:44:04.240 --> 00:44:05.599
the max news

00:44:05.599 --> 00:44:08.800
had uh were also being posted to a

00:44:08.800 --> 00:44:11.440
mailing list that is stored at

00:44:11.440 --> 00:44:14.800
lists.we know.org and it's called max

00:44:14.800 --> 00:44:16.319
dungeons

00:44:16.319 --> 00:44:19.280
uh and I just and I found a way to

00:44:19.280 --> 00:44:19.760
create

00:44:19.760 --> 00:44:25.440
the links to to the posts in both places

00:44:25.440 --> 00:44:28.400
but I had to use a template for that so

00:44:28.400 --> 00:44:30.640
what we are seeing here now

00:44:30.640 --> 00:44:32.560
is a template with the the default

00:44:32.560 --> 00:44:36.640
values so this means that we have not uh

00:44:36.640 --> 00:44:39.359
set the year correctly we have not set

00:44:39.359 --> 00:44:40.720
the month correctly

00:44:40.720 --> 00:44:44.240
or the day correctly but if we run this

00:44:44.240 --> 00:44:44.720
text

00:44:44.720 --> 00:44:48.960
here uh let me do something else before

00:44:48.960 --> 00:44:53.359
if we run this text here

00:44:53.359 --> 00:44:57.280
which we change some of these

00:44:57.280 --> 00:45:00.880
entries in the

00:45:00.880 --> 00:45:04.400
in the template and we get these links

00:45:04.400 --> 00:45:05.200
here

00:45:05.200 --> 00:45:09.119
they all work for example this one opens

00:45:09.119 --> 00:45:12.160
uh the blog post in in session sasha

00:45:12.160 --> 00:45:12.800
chewers

00:45:12.800 --> 00:45:16.000
site and this one

00:45:16.000 --> 00:45:21.280
opens it in the mailing list

00:45:21.280 --> 00:45:23.440
and sometimes I want the org source of

00:45:23.440 --> 00:45:25.760
that and the easiest way to get the word

00:45:25.760 --> 00:45:27.280
source is to

00:45:27.280 --> 00:45:30.480
look at this link here that has an

00:45:30.480 --> 00:45:31.680
attachment

00:45:31.680 --> 00:45:35.040
and if I take this

00:45:35.040 --> 00:45:38.560
link here and I take this

00:45:38.560 --> 00:45:42.319
stem that points to to the attachment

00:45:42.319 --> 00:45:44.480
and I put it here and I generate this

00:45:44.480 --> 00:45:45.440
page again

00:45:45.440 --> 00:45:49.119
with all this data then I get a script

00:45:49.119 --> 00:45:50.000
here

00:45:50.000 --> 00:45:53.359
that downloads let me switch to a

00:45:53.359 --> 00:45:54.640
smaller font

00:45:54.640 --> 00:45:58.160
it downloads this attachment

00:45:58.160 --> 00:46:00.960
and it renames that attachment to

00:46:00.960 --> 00:46:01.599
something

00:46:01.599 --> 00:46:06.000
dot slash nx news sorry some things

00:46:06.000 --> 00:46:10.720
uh iphone mx news hyphen

00:46:10.720 --> 00:46:15.119
something mxnews.org here

00:46:15.119 --> 00:46:17.599
the file is already here already with

00:46:17.599 --> 00:46:18.400
the right name

00:46:18.400 --> 00:46:21.359
so I can open it with just this

00:46:21.359 --> 00:46:22.079
hyperlink

00:46:22.079 --> 00:46:23.780
let me go to the big font again

00:46:23.780 --> 00:46:25.200
[Music]

00:46:25.200 --> 00:46:28.079
and now I have the work source for that

00:46:28.079 --> 00:46:29.280
hyperlink

00:46:29.280 --> 00:46:33.839
sorry for that blog post

00:46:33.839 --> 00:46:37.040
and so this one line thing

00:46:37.040 --> 00:46:40.960
here is in a sense

00:46:40.960 --> 00:46:43.920
a a to to this blog post in all its

00:46:43.920 --> 00:46:45.119
formats

00:46:45.119 --> 00:46:48.640
uh if I execute this I get links to

00:46:48.640 --> 00:46:52.000
to all the places where it is posted

00:46:52.000 --> 00:46:54.400
and I get a hype and I get a script to

00:46:54.400 --> 00:46:56.000
download the local copy

00:46:56.000 --> 00:47:00.480
of the org source of it and that's it

00:47:00.480 --> 00:47:03.200
well I'm already out of time so let me

00:47:03.200 --> 00:47:04.480
finish here

00:47:04.480 --> 00:47:10.079
thanks bye