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diff --git a/2020/subtitles/emacsconf-2020--21-on-why-most-of-the-best-features-in-eev-look-like-5-minute-hacks--eduardo-ochs-autogen.sbv b/2020/subtitles/emacsconf-2020--21-on-why-most-of-the-best-features-in-eev-look-like-5-minute-hacks--eduardo-ochs-autogen.sbv new file mode 100644 index 00000000..979f5414 --- /dev/null +++ b/2020/subtitles/emacsconf-2020--21-on-why-most-of-the-best-features-in-eev-look-like-5-minute-hacks--eduardo-ochs-autogen.sbv @@ -0,0 +1,3300 @@ +0:00:00.080,0:00:03.439 +hi my name is eduardo x i'm this person + +0:00:02.639,0:00:06.240 +here + +0:00:03.439,0:00:07.120 +and the title of this talk is on why + +0:00:06.240,0:00:09.519 +most of + +0:00:07.120,0:00:11.599 +most of the best features in ev look + +0:00:09.519,0:00:13.759 +like five minute hacks + +0:00:11.599,0:00:15.280 +and this is a presentation at the max + +0:00:13.759,0:00:21.920 +conf 2020 + +0:00:15.280,0:00:21.920 +happening in november 22 28 and 29 2020 + +0:00:23.199,0:00:27.680 +so this is part one of the presentation + +0:00:25.519,0:00:29.840 +and here i'm going to explain some + +0:00:27.680,0:00:31.039 +some ideas that are prerequisites for + +0:00:29.840,0:00:32.320 +understanding the rest of the + +0:00:31.039,0:00:35.440 +presentation + +0:00:32.320,0:00:35.760 +the three main keys of ev are matay meta + +0:00:35.440,0:00:37.920 +k + +0:00:35.760,0:00:41.520 +and mata j and i'm going to start by + +0:00:37.920,0:00:41.520 +explaining metae and meta k + +0:00:42.079,0:00:46.800 +metae is used to follow hyperlink and + +0:00:44.960,0:00:49.680 +technically it is + +0:00:46.800,0:00:50.879 +essentially just a ctrl e to move to the + +0:00:49.680,0:00:54.320 +end of the line and then + +0:00:50.879,0:00:58.960 +a ctrl x control e to execute this the + +0:00:54.320,0:01:00.879 +sext before point at the end of the line + +0:00:58.960,0:01:03.120 +and the thing is that a max comes with + +0:01:00.879,0:01:05.040 +many functions that can be used as sex + +0:01:03.120,0:01:07.040 +hyperlinks + +0:01:05.040,0:01:09.040 +we can consider that they point to + +0:01:07.040,0:01:09.520 +somewhere i'm going to refer to that as + +0:01:09.040,0:01:11.920 +the + +0:01:09.520,0:01:12.960 +target of the hyperlink and if we + +0:01:11.920,0:01:15.759 +execute this + +0:01:12.960,0:01:17.119 +sex paper links would go to that target + +0:01:15.759,0:01:20.000 +for example this one + +0:01:17.119,0:01:22.720 +is a hyperlink that points to a buffer + +0:01:20.000,0:01:25.040 +with demand paid for cat + +0:01:22.720,0:01:27.040 +and usually but not always after + +0:01:25.040,0:01:29.840 +following the hyperlink we can go back + +0:01:27.040,0:01:30.720 +by just skilling the the current buffer + +0:01:29.840,0:01:34.400 +that the hyperlink + +0:01:30.720,0:01:38.000 +created the target of the hyperlink + +0:01:34.400,0:01:41.360 +but this example here is badly behaved + +0:01:38.000,0:01:43.360 +if we execute it it creates a new frame + +0:01:41.360,0:01:44.640 +and to go back to the previous situation + +0:01:43.360,0:01:50.079 +we have to either + +0:01:44.640,0:01:50.079 +click here or type ctrl x50 + +0:01:52.840,0:01:57.520 +uh + +0:01:54.880,0:02:00.640 +so here are some examples of sex + +0:01:57.520,0:02:03.600 +hyperlinks using standard max functions + +0:02:00.640,0:02:04.880 +this third one is uh badly behaved in a + +0:02:03.600,0:02:08.879 +different way + +0:02:04.880,0:02:09.840 +if executed we the target is created in + +0:02:08.879,0:02:13.840 +the same window + +0:02:09.840,0:02:16.000 +as we are now but it also shows a lot of + +0:02:13.840,0:02:20.840 +garbage here in the aqua area so + +0:02:16.000,0:02:23.280 +the the current frame becomes a bit + +0:02:20.840,0:02:26.160 +messy + +0:02:23.280,0:02:28.319 +and well one of the first things that i + +0:02:26.160,0:02:30.720 +did when i was creating av + +0:02:28.319,0:02:31.680 +many many years ago was that i created + +0:02:30.720,0:02:34.840 +variants + +0:02:31.680,0:02:36.640 +of all these functions that were better + +0:02:34.840,0:02:38.640 +behaved + +0:02:36.640,0:02:40.480 +and they were better behaved in two + +0:02:38.640,0:02:43.040 +senses the obvious one + +0:02:40.480,0:02:43.680 +was that they they all created the + +0:02:43.040,0:02:45.840 +target + +0:02:43.680,0:02:48.720 +in the same window as before so i could + +0:02:45.840,0:02:51.040 +go back by just typing meta k + +0:02:48.720,0:02:52.879 +which is essentially just killed this + +0:02:51.040,0:02:55.200 +buffer + +0:02:52.879,0:02:56.480 +and well but i also implemented + +0:02:55.200,0:02:59.040 +something extra that + +0:02:56.480,0:02:59.840 +are the post back lists for example for + +0:02:59.040,0:03:03.599 +example these + +0:02:59.840,0:03:06.080 +extra arguments here are a postback list + +0:03:03.599,0:03:09.599 +and this extra arguments specify + +0:03:06.080,0:03:13.040 +position and the target buffer + +0:03:09.599,0:03:16.720 +and in this example this this spot + +0:03:13.040,0:03:18.239 +spec list means starting from the from + +0:03:16.720,0:03:20.560 +the beginning of the buffer + +0:03:18.239,0:03:22.239 +search for the first occurrence of this + +0:03:20.560,0:03:24.159 +string + +0:03:22.239,0:03:25.519 +after that after the beginning of the + +0:03:24.159,0:03:28.159 +buffer and then + +0:03:25.519,0:03:29.120 +search for the first occurrence of this + +0:03:28.159,0:03:33.760 +string + +0:03:29.120,0:03:36.560 +after that + +0:03:33.760,0:03:38.799 +eev also defines some hyperlinks that do + +0:03:36.560,0:03:41.280 +not create new buffers + +0:03:38.799,0:03:41.840 +uh here is the first example if i + +0:03:41.280,0:03:45.920 +execute + +0:03:41.840,0:03:46.959 +this one this one is a hyperlink to the + +0:03:45.920,0:03:50.720 +to the result + +0:03:46.959,0:03:52.959 +of running this show comment date uh + +0:03:50.720,0:03:55.040 +but instead of showing the result in the + +0:03:52.959,0:03:58.959 +new buffer the result is shown + +0:03:55.040,0:04:01.840 +here so if execute to this type link + +0:03:58.959,0:04:04.239 +the result of date the output of data is + +0:04:01.840,0:04:06.640 +shown in the echo area and if executed + +0:04:04.239,0:04:06.640 +again + +0:04:07.120,0:04:11.519 +it shows the result again and the result + +0:04:09.519,0:04:15.200 +changes every second + +0:04:11.519,0:04:18.720 +and if so this is a variant + +0:04:15.200,0:04:21.840 +of fine sh + +0:04:18.720,0:04:24.960 +uh find sh0 is the variant that + +0:04:21.840,0:04:28.080 +just shows the output in the echo area + +0:04:24.960,0:04:31.120 +and find sh shows the output in + +0:04:28.080,0:04:31.120 +a new buffer + +0:04:31.759,0:04:37.520 +and here is an example of a hyperlink + +0:04:35.919,0:04:40.000 +that + +0:04:37.520,0:04:41.280 +calls an external program if execute + +0:04:40.000,0:04:43.759 +this + +0:04:41.280,0:04:46.639 +it it calls google chrome to open a + +0:04:43.759,0:04:51.520 +certain url + +0:04:46.639,0:04:55.280 +here it is let's go back to mx + +0:04:51.520,0:04:58.479 +if execute this happening here + +0:04:55.280,0:04:58.880 +it invokes my favorite pdf viewer which + +0:04:58.479,0:05:02.560 +is + +0:04:58.880,0:05:07.440 +xpdf it makes xpdf + +0:05:02.560,0:05:07.440 +open this pdf page it is pdf + +0:05:07.759,0:05:15.199 +in this page and this other arguments + +0:05:10.880,0:05:19.120 +are ignored let me show how it works + +0:05:15.199,0:05:20.160 +here it is this is a an accept from a + +0:05:19.120,0:05:22.639 +book + +0:05:20.160,0:05:23.199 +so page 3 and the pdf corresponds to + +0:05:22.639,0:05:26.400 +page + +0:05:23.199,0:05:29.360 +113 in the book and + +0:05:26.400,0:05:31.759 +this variant here of the hyperlink above + +0:05:29.360,0:05:34.560 +it opens the pdf in a different way + +0:05:31.759,0:05:36.479 +it runs a program called pdf to text on + +0:05:34.560,0:05:39.600 +this pdf here + +0:05:36.479,0:05:42.880 +and max takes the output of + +0:05:39.600,0:05:46.080 +run epd after text on this pdf here + +0:05:42.880,0:05:47.280 +and displays it in a buffer and now this + +0:05:46.080,0:05:50.000 +postback list + +0:05:47.280,0:05:51.280 +is interpreted in a different way this + +0:05:50.000,0:05:54.400 +thing is interpreted + +0:05:51.280,0:05:54.800 +as a as a number of a page and a max + +0:05:54.400,0:05:57.520 +goes + +0:05:54.800,0:05:58.240 +to page three by counting form feeds in + +0:05:57.520,0:06:01.440 +the + +0:05:58.240,0:06:03.039 +converted version of the pdf and then it + +0:06:01.440,0:06:06.319 +searches for this string + +0:06:03.039,0:06:08.479 +and in this three so let's execute this + +0:06:06.319,0:06:10.800 +to see what happens + +0:06:08.479,0:06:13.280 +here it is i opened the same page as + +0:06:10.800,0:06:13.280 +before + +0:06:14.800,0:06:20.720 +it starts with lecture one so + +0:06:18.400,0:06:24.720 +the other hyperlink searched for this + +0:06:20.720,0:06:24.720 +string and for this string here + +0:06:25.520,0:06:30.400 +uh and this thing here is a hyperlink to + +0:06:28.160,0:06:32.720 +video + +0:06:30.400,0:06:34.560 +and when i executed it's going to open + +0:06:32.720,0:06:37.759 +this video here + +0:06:34.560,0:06:41.199 +at this time this time stamp let's see + +0:06:37.759,0:06:46.840 +one two three one + +0:06:41.199,0:06:49.440 +two three that's the way to do + +0:06:46.840,0:06:52.560 +it + +0:06:49.440,0:06:53.680 +and also some hyperlinks that that i + +0:06:52.560,0:06:56.479 +defined + +0:06:53.680,0:06:58.160 +uh they don't work like like usual + +0:06:56.479,0:07:01.440 +hyperlinks they work more + +0:06:58.160,0:07:05.759 +like browser buttons + +0:07:01.440,0:07:05.759 +these buttons that appear in web pages + +0:07:06.240,0:07:11.360 +in the sense that these buttons usually + +0:07:09.120,0:07:13.280 +don't open a new page they usually + +0:07:11.360,0:07:14.960 +just do something to change the current + +0:07:13.280,0:07:18.160 +page + +0:07:14.960,0:07:18.880 +if i execute this the action of this + +0:07:18.160,0:07:22.240 +function + +0:07:18.880,0:07:24.800 +eek is to uh + +0:07:22.240,0:07:25.919 +it interprets this string as a series of + +0:07:24.800,0:07:28.840 +keys and it + +0:07:25.919,0:07:30.319 +acts as if the user had typed all these + +0:07:28.840,0:07:33.680 +keys so + +0:07:30.319,0:07:34.400 +if executed i get a hello in the next + +0:07:33.680,0:07:36.639 +line + +0:07:34.400,0:07:39.440 +if executed again i get another hello + +0:07:36.639,0:07:44.319 +another hello hello hello etc etc + +0:07:39.440,0:07:47.840 +let me undo this mess oops + +0:07:44.319,0:07:51.440 +and here is another kind of button + +0:07:47.840,0:07:54.879 +that defines a new function if i execute + +0:07:51.440,0:07:55.759 +this sex here at this moment though is + +0:07:54.879,0:07:57.919 +not defined + +0:07:55.759,0:08:00.000 +and if i execute this mx is going to + +0:07:57.919,0:08:03.599 +show me a message saying + +0:08:00.000,0:08:05.840 +uh symbols function cell is not defined + +0:08:03.599,0:08:09.520 +something like this + +0:08:05.840,0:08:12.960 +but if i execute the defund + +0:08:09.520,0:08:16.479 +this the action of this function o here + +0:08:12.960,0:08:18.960 +is to run this which opens a certain + +0:08:16.479,0:08:21.840 +directory + +0:08:18.960,0:08:23.039 +let me go back and here is another + +0:08:21.840,0:08:25.840 +button that defines + +0:08:23.039,0:08:26.479 +several functions at the same time if i + +0:08:25.840,0:08:28.879 +execute + +0:08:26.479,0:08:28.879 +this + +0:08:32.320,0:08:36.719 +note that the the result of executing + +0:08:35.599,0:08:38.640 +this expression + +0:08:36.719,0:08:40.080 +is the name of one of the functions that + +0:08:38.640,0:08:42.800 +it defined + +0:08:40.080,0:08:43.360 +that is this one here and let me explain + +0:08:42.800,0:08:46.959 +the + +0:08:43.360,0:08:48.800 +these examples uh one of the functions + +0:08:46.959,0:08:51.839 +that this thing here defined + +0:08:48.800,0:08:54.640 +is called find or git file where + +0:08:51.839,0:08:55.040 +this or gate in the middle of its name + +0:08:54.640,0:08:59.600 +is + +0:08:55.040,0:09:02.640 +exactly this first argument to code cd + +0:08:59.600,0:09:03.120 +and the action of running find or get + +0:09:02.640,0:09:06.399 +file + +0:09:03.120,0:09:09.680 +on a string like this is that + +0:09:06.399,0:09:13.360 +find or get file takes the string + +0:09:09.680,0:09:15.600 +and prepends this string to it + +0:09:13.360,0:09:17.920 +this one here which is the second + +0:09:15.600,0:09:21.760 +argument to called cd + +0:09:17.920,0:09:25.600 +and then it executes find flying + +0:09:21.760,0:09:25.600 +on the result which is this one + +0:09:25.680,0:09:28.800 +and fine flying is my variant of find + +0:09:28.320,0:09:32.080 +file + +0:09:28.800,0:09:36.880 +that supports both spec lists + +0:09:32.080,0:09:39.600 +and this function here that i'm + +0:09:36.880,0:09:41.200 +referring to as a button it also defines + +0:09:39.600,0:09:44.880 +a function called + +0:09:41.200,0:09:46.080 +find audit node here where the or gate + +0:09:44.880,0:09:50.320 +is the same string + +0:09:46.080,0:09:54.160 +as here and this function opens a node + +0:09:50.320,0:09:57.920 +of of an info manual this one + +0:09:54.160,0:10:00.080 +this text here opens this node in the + +0:09:57.920,0:10:03.519 +org manual + +0:10:00.080,0:10:06.800 +it is equivalent to this text here + +0:10:03.519,0:10:08.720 +so in the passage from this line to this + +0:10:06.800,0:10:11.920 +line we prepended + +0:10:08.720,0:10:15.040 +to the node name the name of the manual + +0:10:11.920,0:10:18.160 +here and find node is my variant + +0:10:15.040,0:10:20.399 +of this standard mx function here + +0:10:18.160,0:10:23.200 +but find node also supports post + +0:10:20.399,0:10:23.200 +backlists + +0:10:23.519,0:10:28.640 +eevee also defines some functions that + +0:10:26.640,0:10:30.800 +define shorter hyperlinks to pdfs and + +0:10:28.640,0:10:32.880 +videos + +0:10:30.800,0:10:34.720 +remember that this thing here is a + +0:10:32.880,0:10:37.120 +shorter hyperlink to a + +0:10:34.720,0:10:39.040 +to a file and this thing here is a + +0:10:37.120,0:10:43.200 +shorter hyperlink to a node and + +0:10:39.040,0:10:46.079 +in an mx menu in an info manual + +0:10:43.200,0:10:47.279 +uh if we run this thing here this code + +0:10:46.079,0:10:50.240 +pdf page + +0:10:47.279,0:10:52.880 +this acts like a button that defines a + +0:10:50.240,0:10:56.399 +certain function + +0:10:52.880,0:10:59.040 +and this string this other sex + +0:10:56.399,0:11:00.240 +here defines another function the first + +0:10:59.040,0:11:03.040 +one defines + +0:11:00.240,0:11:05.360 +the function find funcspivac page and + +0:11:03.040,0:11:09.279 +the second one defines the function find + +0:11:05.360,0:11:12.240 +from text when we run the + +0:11:09.279,0:11:13.440 +file when we run findfoxpivotpage it + +0:11:12.240,0:11:17.600 +opens + +0:11:13.440,0:11:20.640 +this pdf here the name is + +0:11:17.600,0:11:23.839 +quite long uh + +0:11:20.640,0:11:26.079 +this example opens this pdf at page 8 + +0:11:23.839,0:11:28.000 +and searches for the string contents + +0:11:26.079,0:11:31.279 +oops sorry in this case + +0:11:28.000,0:11:33.519 +in this case it just ignores this string + +0:11:31.279,0:11:37.360 +here it only considers + +0:11:33.519,0:11:42.640 +the number of the page let's try + +0:11:37.360,0:11:45.200 +ah we got + +0:11:42.640,0:11:46.880 +here it is uh the contents of a book + +0:11:45.200,0:11:50.800 +that is freely + +0:11:46.880,0:11:51.760 +available uh here is another page of the + +0:11:50.800,0:11:55.040 +book + +0:11:51.760,0:11:55.519 +and if we execute the this happening + +0:11:55.040,0:11:58.399 +here + +0:11:55.519,0:11:59.920 +find funk's pivot text it converts the + +0:11:58.399,0:12:03.040 +pdf to text + +0:11:59.920,0:12:05.040 +and it searches for the page eight + +0:12:03.040,0:12:08.079 +in it and then for the string this + +0:12:05.040,0:12:11.839 +string here in page eight + +0:12:08.079,0:12:11.839 +it takes a few seconds + +0:12:12.240,0:12:20.320 +here it is so this is the + +0:12:16.160,0:12:25.040 +ascii version of this contents page + +0:12:20.320,0:12:28.800 +here uh note that this block here + +0:12:25.040,0:12:31.680 +is a kind of an index to that book + +0:12:28.800,0:12:33.600 +uh i have the full index somewhere but + +0:12:31.680,0:12:34.959 +it's very long so i just copied a few + +0:12:33.600,0:12:38.959 +lines here + +0:12:34.959,0:12:42.160 +uh so this is a link to the to set + +0:12:38.959,0:12:45.360 +section one chapter one this is the + +0:12:42.160,0:12:48.959 +section 1.1 + +0:12:45.360,0:12:53.839 +section 1.1.1 and so on + +0:12:48.959,0:12:53.839 +and here is a link to the index + +0:12:54.000,0:13:02.800 +and here is a part of my index + +0:12:58.079,0:13:03.279 +of positions in the video that we just + +0:13:02.800,0:13:05.760 +saw + +0:13:03.279,0:13:07.360 +that i think that are especially + +0:13:05.760,0:13:10.639 +relevant + +0:13:07.360,0:13:12.399 +uh so this i believe + +0:13:10.639,0:13:14.160 +hyperlink is a kind of a button that + +0:13:12.399,0:13:18.560 +defines this function here + +0:13:14.160,0:13:18.560 +find punch and punch into the video + +0:13:18.839,0:13:21.839 +uh + +0:13:27.600,0:13:33.360 +and we can also use this for video + +0:13:31.440,0:13:37.200 +tutorials for example + +0:13:33.360,0:13:40.639 +this is a very good tutorial on on magic + +0:13:37.200,0:13:40.639 +if we execute this + +0:13:40.880,0:13:44.800 +then these functions are going to be + +0:13:42.560,0:13:48.399 +defined and these functions open + +0:13:44.800,0:13:50.079 +this tutorial on magic + +0:13:48.399,0:13:51.839 +these are some of the positions in the + +0:13:50.079,0:13:53.920 +tutorial that i found especially + +0:13:51.839,0:13:55.600 +especially relevant this is a very dense + +0:13:53.920,0:13:56.480 +tutorial i had to take notes of + +0:13:55.600,0:13:59.040 +everything + +0:13:56.480,0:14:00.800 +and i had to watch everything things + +0:13:59.040,0:14:03.440 +several times + +0:14:00.800,0:14:06.480 +and for example this is a link to the + +0:14:03.440,0:14:09.600 +position in the tutorial that explains + +0:14:06.480,0:14:12.880 +uh how in space + +0:14:09.600,0:14:17.600 +space max magic magic + +0:14:12.880,0:14:20.480 +interprets space gs magic status + +0:14:17.600,0:14:22.320 +let's see beginners space gs to initiate + +0:14:20.480,0:14:25.600 +magic's git status + +0:14:22.320,0:14:28.800 +uh you can also do that's it + +0:14:25.600,0:14:32.160 +and here are some examples that i + +0:14:28.800,0:14:34.240 +took from somewhere else the video + +0:14:32.160,0:14:38.800 +tutorials from + +0:14:34.240,0:14:38.800 +ralph koenig about org mode + +0:14:43.519,0:14:47.440 +now let me show how the functions that + +0:14:45.519,0:14:48.720 +define this router hyperlinks are + +0:14:47.440,0:14:51.199 +implemented + +0:14:48.720,0:14:52.480 +the standard ways in max to define + +0:14:51.199,0:14:55.760 +functions that define + +0:14:52.480,0:14:58.320 +other functions would be with macros uh + +0:14:55.760,0:14:59.040 +let's see an example this is a standard + +0:14:58.320,0:15:01.540 +function that + +0:14:59.040,0:15:02.959 +defines new functions + +0:15:01.540,0:15:06.959 +[Music] + +0:15:02.959,0:15:09.040 +and if we execute it one of the res + +0:15:06.959,0:15:10.160 +its result is the last function that it + +0:15:09.040,0:15:13.839 +defined which is + +0:15:10.160,0:15:13.839 +e-grief which is here + +0:15:13.920,0:15:19.360 +it's implemented as a macro we can + +0:15:16.959,0:15:20.880 +look at the result of macro expand which + +0:15:19.360,0:15:23.519 +is going to show + +0:15:20.880,0:15:25.519 +show us the result of of this of the + +0:15:23.519,0:15:28.000 +expansion of this + +0:15:25.519,0:15:28.959 +instead of expanding and executing it + +0:15:28.000,0:15:33.199 +just + +0:15:28.959,0:15:36.000 +expands and shows us the result + +0:15:33.199,0:15:37.600 +here the result is a bit messy is too + +0:15:36.000,0:15:40.959 +big for + +0:15:37.600,0:15:44.240 +humans to understand but we can run + +0:15:40.959,0:15:47.519 +this or this text here that takes that + +0:15:44.240,0:15:50.959 +that result and pretty prints it + +0:15:47.519,0:15:54.000 +so this is the pretty printed version of + +0:15:50.959,0:15:57.600 +uh this macro here + +0:15:54.000,0:16:01.120 +we can see that it defines + +0:15:57.600,0:16:04.399 +several functions here + +0:16:01.120,0:16:04.399 +for example this one + +0:16:06.399,0:16:09.920 +and this just as a curiosity is a link + +0:16:09.360,0:16:13.839 +to + +0:16:09.920,0:16:16.880 +the definition of cld struct + +0:16:13.839,0:16:19.199 +and note that the code is huge uh + +0:16:16.880,0:16:20.079 +well it's very well commented but it's + +0:16:19.199,0:16:23.759 +it has + +0:16:20.079,0:16:26.959 +lots of special cases it has uh + +0:16:23.759,0:16:27.920 +it supports lots of constructions and so + +0:16:26.959,0:16:30.639 +it's huge and + +0:16:27.920,0:16:33.360 +it's very difficult to understand i mean + +0:16:30.639,0:16:35.040 +i found it very difficult to understand + +0:16:33.360,0:16:37.759 +and here's a link to document the + +0:16:35.040,0:16:42.000 +documentation of cld struct + +0:16:37.759,0:16:46.000 +here in the manual for + +0:16:42.000,0:16:50.480 +cl which is a kind of support for some + +0:16:46.000,0:16:53.600 +features of common lisp in the max + +0:16:50.480,0:16:54.639 +so let's compare this standard way of + +0:16:53.600,0:16:56.560 +defining + +0:16:54.639,0:16:58.320 +functions that define new functions + +0:16:56.560,0:17:01.680 +which is with macros + +0:16:58.320,0:17:04.160 +with this i'm going to use a slogan + +0:17:01.680,0:17:06.319 +repeatedly the slogan is i am a very bad + +0:17:04.160,0:17:08.880 +programmer + +0:17:06.319,0:17:10.640 +i'm a very bad programmer so when i was + +0:17:08.880,0:17:12.240 +trying to create functions that would + +0:17:10.640,0:17:14.480 +define new functions + +0:17:12.240,0:17:16.400 +i found it easier to generally generate + +0:17:14.480,0:17:20.559 +this code as text + +0:17:16.400,0:17:23.199 +and then run read and eval in it + +0:17:20.559,0:17:24.640 +the code cd that we saw in the previous + +0:17:23.199,0:17:28.079 +section + +0:17:24.640,0:17:29.039 +we can see the the code that it produces + +0:17:28.079,0:17:31.039 +by + +0:17:29.039,0:17:33.280 +making a copy of this line and + +0:17:31.039,0:17:34.480 +prepending this string here to the name + +0:17:33.280,0:17:36.720 +of the function + +0:17:34.480,0:17:38.400 +so instead of running code cd we run + +0:17:36.720,0:17:41.280 +find code cd + +0:17:38.400,0:17:44.400 +and it creates a new temporary buffer + +0:17:41.280,0:17:47.760 +with the code that + +0:17:44.400,0:17:50.320 +code cd would execute + +0:17:47.760,0:17:53.919 +so it's a series of the fonts and a few + +0:17:50.320,0:17:53.919 +set cues and so on + +0:17:54.080,0:17:59.120 +and this thing is implemented mostly as + +0:17:57.600,0:18:02.160 +a template + +0:17:59.120,0:18:04.160 +uh the lola the + +0:18:02.160,0:18:06.240 +there's an inner function called ee + +0:18:04.160,0:18:08.799 +called cd base that receives just + +0:18:06.240,0:18:10.640 +these two arguments and it says + +0:18:08.799,0:18:14.320 +essentially just runs the function + +0:18:10.640,0:18:16.480 +e template zero on the string here and + +0:18:14.320,0:18:18.559 +the things between curly braces are + +0:18:16.480,0:18:22.559 +substituted by the values + +0:18:18.559,0:18:22.559 +of these arguments here + +0:18:23.600,0:18:28.480 +there's one part of the tutorial here + +0:18:25.919,0:18:31.039 +that explains all these things + +0:18:28.480,0:18:32.559 +uh except for the rationale for some + +0:18:31.039,0:18:35.360 +design decisions + +0:18:32.559,0:18:37.280 +and those design decisions are one of + +0:18:35.360,0:18:37.760 +the many motivations for this talk but + +0:18:37.280,0:18:39.679 +um + +0:18:37.760,0:18:42.640 +we are i'm only going to explain these + +0:18:39.679,0:18:46.799 +things in detail at the end + +0:18:42.640,0:18:46.799 +which is kind of so on + +0:18:48.480,0:18:51.600 +in the beginning i said that the three + +0:18:50.320,0:18:56.000 +main keys of av + +0:18:51.600,0:19:00.080 +are meta e meta k and meta j + +0:18:56.000,0:19:01.520 +let's see now what met what meta j does + +0:19:00.080,0:19:04.640 +uh but i need to start with some + +0:19:01.520,0:19:06.559 +motivation uh the motivation is that we + +0:19:04.640,0:19:08.240 +can define commands with very short + +0:19:06.559,0:19:10.160 +names and actually i became kind of + +0:19:08.240,0:19:13.200 +addicted to that + +0:19:10.160,0:19:15.600 +this is an example of the fund that + +0:19:13.200,0:19:18.000 +defines a comment with a very short name + +0:19:15.600,0:19:21.200 +its name is just one letter e + +0:19:18.000,0:19:21.520 +and i can invoke you invoke it with meta + +0:19:21.200,0:19:24.720 +x + +0:19:21.520,0:19:27.360 +e if i type meta xp + +0:19:24.720,0:19:30.000 +now it opens a latex file that i'm + +0:19:27.360,0:19:30.000 +working on + +0:19:31.130,0:19:35.200 +[Music] + +0:19:32.559,0:19:37.120 +and i create most of my latex files + +0:19:35.200,0:19:39.200 +using + +0:19:37.120,0:19:40.559 +template template-based functions like + +0:19:39.200,0:19:43.760 +the the + +0:19:40.559,0:19:46.559 +implementation of code cd above and + +0:19:43.760,0:19:49.280 +this template-based functions create + +0:19:46.559,0:19:51.280 +files with extension.tag + +0:19:49.280,0:19:53.919 +that start with a series of the fonts + +0:19:51.280,0:19:56.240 +and comments for example + +0:19:53.919,0:19:58.320 +let's look at this example here if i + +0:19:56.240,0:19:59.440 +execute find the attack links with this + +0:19:58.320,0:20:02.159 +argument + +0:19:59.440,0:20:03.440 +uh it's going it's going to do several + +0:20:02.159,0:20:06.880 +things for creating a + +0:20:03.440,0:20:08.320 +file called slash tmp slash forward + +0:20:06.880,0:20:11.200 +attack + +0:20:08.320,0:20:12.400 +and the header of that file is going to + +0:20:11.200,0:20:16.080 +be this + +0:20:12.400,0:20:19.280 +which starts with two and with three + +0:20:16.080,0:20:21.919 +the fonts with functions with very short + +0:20:19.280,0:20:26.240 +names and comments + +0:20:21.919,0:20:26.240 +let's compare with the situation here + +0:20:27.520,0:20:34.640 +in my file 2020 favorite conventions.tag + +0:20:32.799,0:20:37.039 +i have this header here in which i + +0:20:34.640,0:20:39.360 +define six functions with very short + +0:20:37.039,0:20:41.919 +names + +0:20:39.360,0:20:44.799 +and in this case here that is even + +0:20:41.919,0:20:48.000 +explained in the tutorial + +0:20:44.799,0:20:51.520 +this we have mnemonics for + +0:20:48.000,0:20:54.799 +these short names here and c is compile + +0:20:51.520,0:20:57.760 +d is display i mean display the pdf + +0:20:54.799,0:20:58.159 +and e is added in the sense of make a + +0:20:57.760,0:21:02.320 +max + +0:20:58.159,0:21:05.039 +visit that file + +0:21:02.320,0:21:06.480 +okay now i can explain what is meta j + +0:21:05.039,0:21:08.880 +itself + +0:21:06.480,0:21:09.600 +uh we just saw comments with very short + +0:21:08.880,0:21:12.320 +names + +0:21:09.600,0:21:14.840 +and the idea is behind meta j is that we + +0:21:12.320,0:21:16.480 +can define comments with very short + +0:21:14.840,0:21:19.679 +numbers + +0:21:16.480,0:21:22.559 +let me explain this uh + +0:21:19.679,0:21:23.039 +the short explanation for what meta j + +0:21:22.559,0:21:25.360 +does + +0:21:23.039,0:21:27.039 +is that it jumps to set certain + +0:21:25.360,0:21:29.760 +predefined places + +0:21:27.039,0:21:30.799 +in particular a meta j without a numeric + +0:21:29.760,0:21:33.280 +argument + +0:21:30.799,0:21:34.080 +takes us to a buffer with with the basic + +0:21:33.280,0:21:37.679 +help + +0:21:34.080,0:21:39.760 +and a list of the current age of targets + +0:21:37.679,0:21:41.520 +and this is something that is a bit + +0:21:39.760,0:21:44.559 +simpler to understand + +0:21:41.520,0:21:47.919 +if we type meta five meta j + +0:21:44.559,0:21:51.120 +then meta j runs this sex + +0:21:47.919,0:21:55.440 +here that is associated to + +0:21:51.120,0:21:59.039 +the argument five i say that the target + +0:21:55.440,0:22:01.520 +for the argument five is this one + +0:21:59.039,0:22:03.760 +and if the argument is true then the + +0:22:01.520,0:22:07.039 +target associated to the to the true + +0:22:03.760,0:22:09.600 +is this sex here that opens + +0:22:07.039,0:22:10.240 +well this one opens the main tutorial vv + +0:22:09.600,0:22:13.679 +and this one + +0:22:10.240,0:22:15.679 +opens another tutorial + +0:22:13.679,0:22:20.480 +this is a link to one of the tutorials + +0:22:15.679,0:22:22.559 +of ev to the part that explains meta j + +0:22:20.480,0:22:24.559 +i've copied the the main part of the + +0:22:22.559,0:22:28.159 +text here + +0:22:24.559,0:22:31.360 +the header the header that meta j shows + +0:22:28.159,0:22:33.919 +let me show it very quickly here + +0:22:31.360,0:22:36.320 +here is their header and here is their + +0:22:33.919,0:22:39.039 +rest + +0:22:36.320,0:22:40.000 +the header is very beginner friendly and + +0:22:39.039,0:22:42.159 +if you're a beginner + +0:22:40.000,0:22:44.559 +who only knows how to use meta e to + +0:22:42.159,0:22:46.799 +execute and met + +0:22:44.559,0:22:48.240 +this should be okay and meta k to go + +0:22:46.799,0:22:52.320 +back + +0:22:48.240,0:22:55.840 +then you can and should use that header + +0:22:52.320,0:22:55.840 +i mean this header here + +0:22:56.720,0:23:00.799 +as your main starting point and every + +0:22:59.360,0:23:03.679 +time that you feel lost + +0:23:00.799,0:23:04.799 +you can type meta j and to go back to + +0:23:03.679,0:23:07.039 +that header + +0:23:04.799,0:23:08.000 +and you can use its links to navigate to + +0:23:07.039,0:23:11.360 +the documentation + +0:23:08.000,0:23:14.799 +for max nav let me explain that + +0:23:11.360,0:23:15.679 +uh this header here has several ellis + +0:23:14.799,0:23:19.039 +hyperlinks + +0:23:15.679,0:23:22.400 +one here one here + +0:23:19.039,0:23:25.760 +one here one here and so on + +0:23:22.400,0:23:29.280 +uh these ones are links to the + +0:23:25.760,0:23:30.880 +to the intros which are the tutorials + +0:23:29.280,0:23:32.480 +find if you quick enter in the main + +0:23:30.880,0:23:35.760 +tutorial and find ev + +0:23:32.480,0:23:36.720 +keys intro is a kind of tutorial that is + +0:23:35.760,0:23:39.520 +an index of + +0:23:36.720,0:23:39.520 +the main keys + +0:23:40.000,0:23:43.279 +and after that we have an explanation of + +0:23:42.559,0:23:46.799 +what some + +0:23:43.279,0:23:50.240 +numeric prefixes do so if we type + +0:23:46.799,0:23:53.200 +met one method j the effect of that is + +0:23:50.240,0:23:54.640 +exactly the same as executing this and + +0:23:53.200,0:23:58.080 +we can execute this + +0:23:54.640,0:23:58.080 +with meta e also + +0:24:00.159,0:24:06.960 +meta tube meta j runs this sex and + +0:24:03.679,0:24:10.559 +i can also execute it with meta e + +0:24:06.960,0:24:14.240 +here it is it's this uh + +0:24:10.559,0:24:18.400 +intro this uh + +0:24:14.240,0:24:22.960 +sandbox tutorial and + +0:24:18.400,0:24:22.960 +here is another sandbox tutorial + +0:24:24.640,0:24:28.720 +let me go back and then the + +0:24:27.039,0:24:30.880 +documentation says that + +0:24:28.720,0:24:31.760 +that header the header that is beginner + +0:24:30.880,0:24:33.679 +friendly + +0:24:31.760,0:24:35.520 +is followed by a section that is very + +0:24:33.679,0:24:37.600 +beginner unfriendly + +0:24:35.520,0:24:40.240 +that contains a series of the fonts like + +0:24:37.600,0:24:40.240 +these ones + +0:24:40.400,0:24:44.640 +here the last line of the header is this + +0:24:43.440,0:24:46.720 +comment here + +0:24:44.640,0:24:48.559 +and then we have several defense like + +0:24:46.720,0:24:51.440 +this + +0:24:48.559,0:24:53.840 +let me explain how these things work + +0:24:51.440,0:24:57.360 +technically what happens when we type + +0:24:53.840,0:24:57.840 +meta j without any arguments is that it + +0:24:57.360,0:25:00.960 +runs + +0:24:57.840,0:25:04.640 +eu jump with argument neil and then + +0:25:00.960,0:25:06.480 +this runs 5 e jumps + +0:25:04.640,0:25:08.000 +when i run meta j with a numeric + +0:25:06.480,0:25:11.120 +argument for example + +0:25:08.000,0:25:14.400 +with argument 5 it runs a jump + +0:25:11.120,0:25:17.679 +5 and e jump five + +0:25:14.400,0:25:20.400 +uh concatenates this five one + +0:25:17.679,0:25:21.679 +to make a name of a function this + +0:25:20.400,0:25:24.320 +function here + +0:25:21.679,0:25:24.720 +and it executes this function e jump + +0:25:24.320,0:25:28.880 +five + +0:25:24.720,0:25:31.919 +you jump uh dash five + +0:25:28.880,0:25:35.520 +and eu jump dash five is + +0:25:31.919,0:25:39.360 +executes find ev equity intro + +0:25:35.520,0:25:41.440 +if i execute just meta j + +0:25:39.360,0:25:43.919 +the section that shows the current age + +0:25:41.440,0:25:47.120 +on targets + +0:25:43.919,0:25:48.159 +has a line for e job five this is that + +0:25:47.120,0:25:52.159 +is exactly the + +0:25:48.159,0:25:52.159 +thing that i was explaining before + +0:25:52.400,0:25:59.520 +so we can use meta j to navigate the + +0:25:54.840,0:26:03.440 +tutorials and we can copy the links + +0:25:59.520,0:26:06.799 +sorry we can copy links to the to + +0:26:03.440,0:26:06.799 +tutorials to our notes + +0:26:07.919,0:26:14.880 +oh sorry this has some typos + +0:26:11.840,0:26:18.080 +for example if i execute this + +0:26:14.880,0:26:20.640 +i go to a section of this tutorial here + +0:26:18.080,0:26:24.320 +that explains the main keys of ev + +0:26:20.640,0:26:26.240 +and these things are hyperlinks i can + +0:26:24.320,0:26:27.440 +mark a hyperlink like this it is just + +0:26:26.240,0:26:30.559 +plain text and i + +0:26:27.440,0:26:31.760 +can copy it to my notes and the idea is + +0:26:30.559,0:26:33.520 +that every time + +0:26:31.760,0:26:35.520 +every time that i find something that is + +0:26:33.520,0:26:36.240 +interesting i can create a hyperlink to + +0:26:35.520,0:26:38.720 +it + +0:26:36.240,0:26:40.799 +and i can put these links in my notes so + +0:26:38.720,0:26:42.960 +i can navigate back + +0:26:40.799,0:26:45.360 +to all the interesting positions very + +0:26:42.960,0:26:45.360 +quickly + +0:26:48.799,0:26:54.080 +okay next feature if we type meta + +0:26:51.760,0:26:57.039 +uppercase j + +0:26:54.080,0:26:57.039 +uh then + +0:26:57.600,0:27:03.679 +this this is a function that transforms + +0:27:00.080,0:27:06.080 +the current line in a certain way + +0:27:03.679,0:27:07.360 +let me give an example let me isolate + +0:27:06.080,0:27:09.919 +this and let me create + +0:27:07.360,0:27:11.039 +duplicate this line to to make clear + +0:27:09.919,0:27:14.240 +what happens + +0:27:11.039,0:27:16.880 +if i type meta uppercase j here + +0:27:14.240,0:27:17.440 +this line here becomes the fund for a + +0:27:16.880,0:27:21.200 +jump + +0:27:17.440,0:27:24.799 +6 and the target of this e-jump + +0:27:21.200,0:27:28.399 +is exactly this sex here + +0:27:24.799,0:27:28.399 +let me undo this mess + +0:27:28.559,0:27:32.840 +and if the first word in the line is not + +0:27:31.360,0:27:36.240 +a number for example + +0:27:32.840,0:27:39.039 +here let me do the same thing + +0:27:36.240,0:27:41.200 +duplicate the line and type meta + +0:27:39.039,0:27:44.240 +uppercase j + +0:27:41.200,0:27:45.600 +then mat uppercase j converts that to a + +0:27:44.240,0:27:49.440 +defund that defines + +0:27:45.600,0:27:52.720 +a function with a very short name + +0:27:49.440,0:27:56.720 +and this function with a very short name + +0:27:52.720,0:27:59.360 +opens this file here in the directory + +0:27:56.720,0:28:01.360 +with the copy of the the git repository + +0:27:59.360,0:28:04.880 +for org mode + +0:28:01.360,0:28:04.880 +let me undo the mass again + +0:28:05.360,0:28:07.760 +oops + +0:28:09.120,0:28:11.679 +that's it + +0:28:14.640,0:28:21.279 +meta uppercase j is a + +0:28:17.760,0:28:24.559 +particular case of of something that + +0:28:21.279,0:28:25.279 +i use a lot in eevee i have if he has + +0:28:24.559,0:28:28.799 +lots of + +0:28:25.279,0:28:31.780 +comments that sorry key sequences + +0:28:28.799,0:28:33.200 +that are like meta uppercase letter and + +0:28:31.780,0:28:35.279 +[Music] + +0:28:33.200,0:28:37.279 +almost all of them operate on the + +0:28:35.279,0:28:38.880 +current line and transform the current + +0:28:37.279,0:28:42.000 +line in certain way + +0:28:38.880,0:28:45.360 +for example this is a file name + +0:28:42.000,0:28:48.640 +and if i type meta uppercase f here + +0:28:45.360,0:28:50.000 +it becomes a link to that file this is + +0:28:48.640,0:28:53.600 +the name of a month page + +0:28:50.000,0:28:55.760 +and if i type meta uppercase m here + +0:28:53.600,0:28:58.080 +it converts that to the link to a month + +0:28:55.760,0:29:01.679 +page and this is a shell command + +0:28:58.080,0:29:04.960 +and if i type meta uppercase s here + +0:29:01.679,0:29:08.720 +it converts that to a link to a + +0:29:04.960,0:29:11.919 +to find fan shell + +0:29:08.720,0:29:12.960 +and until a few years ago these + +0:29:11.919,0:29:16.159 +functions + +0:29:12.960,0:29:18.080 +with matter uppercase letter were half + +0:29:16.159,0:29:18.880 +of my main ways of creating sex + +0:29:18.080,0:29:21.039 +hyperlinks + +0:29:18.880,0:29:22.399 +with few key strokes in the beginning of + +0:29:21.039,0:29:25.600 +course i had to create my + +0:29:22.399,0:29:28.640 +sex pipelines by typing each character + +0:29:25.600,0:29:31.520 +but uh after some time and decided that + +0:29:28.640,0:29:34.559 +i needed something more efficient + +0:29:31.520,0:29:34.960 +so this is end of part one of the two of + +0:29:34.559,0:29:37.760 +the + +0:29:34.960,0:29:37.760 +presentation + +0:29:38.480,0:29:41.760 +so this is part two of the presentation + +0:29:40.640,0:29:44.320 +and the main theme + +0:29:41.760,0:29:46.320 +here is the standard describe key + +0:29:44.320,0:29:49.200 +function that comes with the max + +0:29:46.320,0:29:50.960 +and my variant of it the thing is that + +0:29:49.200,0:29:53.120 +the standard described key in max + +0:29:50.960,0:29:55.600 +is user friendly but it is hacker + +0:29:53.120,0:29:58.559 +unfriendly well i felt so + +0:29:55.600,0:30:00.799 +and when i tried to complement it by by + +0:29:58.559,0:30:03.120 +writing a hacker friendly version of it + +0:30:00.799,0:30:03.919 +that produced the sex hyperlinks that i + +0:30:03.120,0:30:05.440 +needed + +0:30:03.919,0:30:07.039 +i got something that i found really + +0:30:05.440,0:30:09.679 +lovely and + +0:30:07.039,0:30:12.480 +several of the main designs design + +0:30:09.679,0:30:14.320 +decisions of eev can be seen there + +0:30:12.480,0:30:15.520 +but when i showed my variants to other + +0:30:14.320,0:30:17.760 +people they hated it + +0:30:15.520,0:30:19.360 +they felt that it was totally against + +0:30:17.760,0:30:23.440 +their notions of + +0:30:19.360,0:30:25.760 +user friendliness + +0:30:23.440,0:30:26.799 +okay so let's see the standard describe + +0:30:25.760,0:30:30.159 +key if i run + +0:30:26.799,0:30:32.399 +this hyperlink here i get + +0:30:30.159,0:30:34.399 +this the result of running the scribe + +0:30:32.399,0:30:36.399 +key on the key down + +0:30:34.399,0:30:38.080 +and this is a big buffer with some + +0:30:36.399,0:30:41.360 +things in italics + +0:30:38.080,0:30:43.120 +and some hyperlinks here these + +0:30:41.360,0:30:43.679 +hyperlinks are standard in the sense + +0:30:43.120,0:30:46.240 +that + +0:30:43.679,0:30:47.760 +the targets are not visible and they are + +0:30:46.240,0:30:50.799 +implemented using + +0:30:47.760,0:30:51.200 +buttons in a max lisp this section of + +0:30:50.799,0:30:53.919 +the + +0:30:51.200,0:30:56.240 +mx list manual describes how buttons + +0:30:53.919,0:30:56.240 +work + +0:30:56.799,0:31:03.440 +and the the source code is + +0:31:00.640,0:31:04.240 +quite difficult i mean when i was + +0:31:03.440,0:31:06.559 +starting to + +0:31:04.240,0:31:07.600 +to try to decipher this when i was a + +0:31:06.559,0:31:11.200 +beginner + +0:31:07.600,0:31:12.320 +using max 19.34 i felt that this + +0:31:11.200,0:31:15.519 +described key was + +0:31:12.320,0:31:20.080 +very difficult to understand uh + +0:31:15.519,0:31:22.640 +and i felt that the the designers the + +0:31:20.080,0:31:23.679 +the people who wrote it were sacrificing + +0:31:22.640,0:31:26.159 +too much of the + +0:31:23.679,0:31:30.000 +hacker friendliness that i was expecting + +0:31:26.159,0:31:30.000 +from it to make it beginner friendly + +0:31:31.279,0:31:34.799 +let me explain what are the the problems + +0:31:33.600,0:31:36.559 +with the standard + +0:31:34.799,0:31:38.640 +the describe key if we think that + +0:31:36.559,0:31:41.600 +hyperlinks are things like this + +0:31:38.640,0:31:43.600 +with the target and the text then in the + +0:31:41.600,0:31:47.120 +button hyperlinks of describe key + +0:31:43.600,0:31:49.120 +this three bad things happen first + +0:31:47.120,0:31:51.200 +it is hard to extract the target from + +0:31:49.120,0:31:52.000 +the hyperlink second it is hard to + +0:31:51.200,0:31:54.480 +recreate + +0:31:52.000,0:31:55.440 +a list of code that would go to that + +0:31:54.480,0:31:57.519 +target + +0:31:55.440,0:31:59.840 +and third it is hard to copy the full + +0:31:57.519,0:32:00.640 +hyperlink including the targets to other + +0:31:59.840,0:32:04.399 +buffers + +0:32:00.640,0:32:04.399 +i only knew how to copy the text + +0:32:04.960,0:32:09.039 +when i was trying to decipher what + +0:32:07.279,0:32:11.679 +described key was doing + +0:32:09.039,0:32:12.159 +i created lots of hyperlinks like this + +0:32:11.679,0:32:14.960 +to + +0:32:12.159,0:32:16.159 +inspect the text properties and things + +0:32:14.960,0:32:18.480 +like that + +0:32:16.159,0:32:20.000 +for example in the description of the + +0:32:18.480,0:32:23.600 +key down + +0:32:20.000,0:32:26.559 +here we have a button that points to + +0:32:23.600,0:32:26.559 +simple dotel + +0:32:26.799,0:32:31.600 +the text of that button is simple.l this + +0:32:29.679,0:32:34.320 +hyperlinks goes to the + +0:32:31.600,0:32:35.519 +to the middle of this button hyperlink + +0:32:34.320,0:32:39.120 +here + +0:32:35.519,0:32:41.919 +uh this hyperlink here + +0:32:39.120,0:32:43.279 +goes to the middle of the button of this + +0:32:41.919,0:32:46.240 +button hyperlink + +0:32:43.279,0:32:47.679 +and then inspects its text properties + +0:32:46.240,0:32:51.679 +and then goes to + +0:32:47.679,0:32:53.679 +this section here of the description + +0:32:51.679,0:32:56.159 +so this is a high level description of + +0:32:53.679,0:32:58.000 +the text properties + +0:32:56.159,0:33:00.000 +i mean the text properties that make it + +0:32:58.000,0:33:02.480 +a button and this is a + +0:33:00.000,0:33:04.320 +lower level description of the these + +0:33:02.480,0:33:08.000 +text properties + +0:33:04.320,0:33:11.440 +and the button that points to + +0:33:08.000,0:33:11.919 +forward line sorry the the button that + +0:33:11.440,0:33:14.399 +whose + +0:33:11.919,0:33:16.480 +text is forward line this one is + +0:33:14.399,0:33:19.039 +slightly different + +0:33:16.480,0:33:21.200 +this hyperlink here goes to the middle + +0:33:19.039,0:33:24.559 +of that button + +0:33:21.200,0:33:25.760 +and this hyperlink goes to the mid to + +0:33:24.559,0:33:28.559 +the middle of that button + +0:33:25.760,0:33:29.360 +inspects its text properties and go to + +0:33:28.559,0:33:32.559 +the section + +0:33:29.360,0:33:35.760 +of this button of this help + +0:33:32.559,0:33:36.399 +uh buffer here that describe the the + +0:33:35.760,0:33:39.120 +button + +0:33:36.399,0:33:41.679 +and the lower level view of the text + +0:33:39.120,0:33:45.519 +properties + +0:33:41.679,0:33:47.519 +so i started to with things like this + +0:33:45.519,0:33:50.159 +to understand what these buttons were + +0:33:47.519,0:33:50.960 +doing and i was able to figure out how + +0:33:50.159,0:33:53.120 +these things are + +0:33:50.960,0:33:55.519 +implemented and describe key and then + +0:33:53.120,0:33:57.760 +similar help functions in max + +0:33:55.519,0:34:00.000 +and i discovered that one of the main + +0:33:57.760,0:34:01.360 +lower level functions that a max used + +0:34:00.000,0:34:04.080 +for this + +0:34:01.360,0:34:05.279 +is a function called find function no + +0:34:04.080,0:34:08.240 +select + +0:34:05.279,0:34:09.929 +if i run find function no select on next + +0:34:08.240,0:34:11.200 +line + +0:34:09.929,0:34:14.240 +[Music] + +0:34:11.200,0:34:18.079 +it returns a pair + +0:34:14.240,0:34:20.560 +a cons made of a buffer and a position + +0:34:18.079,0:34:21.679 +so i created functions that would that + +0:34:20.560,0:34:24.320 +would + +0:34:21.679,0:34:25.119 +uh follow this that would open that + +0:34:24.320,0:34:28.320 +buffer + +0:34:25.119,0:34:29.679 +in that position and then this is a + +0:34:28.320,0:34:31.679 +postback list + +0:34:29.679,0:34:33.919 +so we could go to these positions and + +0:34:31.679,0:34:36.000 +then search for this string and another + +0:34:33.919,0:34:40.320 +string and another string and so on + +0:34:36.000,0:34:41.040 +so this goes to the definition of find a + +0:34:40.320,0:34:44.159 +function + +0:34:41.040,0:34:47.919 +and then to a to a string + +0:34:44.159,0:34:49.040 +after it and i use these things to + +0:34:47.919,0:34:51.839 +implement my own + +0:34:49.040,0:34:52.960 +functions that pointed to the same the + +0:34:51.839,0:34:55.440 +same targets + +0:34:52.960,0:34:57.679 +as the button hyperlinks and describe + +0:34:55.440,0:34:57.679 +key + +0:35:00.240,0:35:05.599 +again let me show the comparison this is + +0:35:03.200,0:35:10.480 +the standard describe key + +0:35:05.599,0:35:13.839 +here and this is my variant + +0:35:10.480,0:35:17.680 +uh it creates a buffer with links + +0:35:13.839,0:35:20.960 +with the list hyperlinks about this key + +0:35:17.680,0:35:22.960 +we get this so each one of these + +0:35:20.960,0:35:27.280 +functions is either a blank line + +0:35:22.960,0:35:27.280 +or a or an ellipse hyperlink + +0:35:28.720,0:35:32.880 +here is a slight variant of the of the + +0:35:31.760,0:35:35.920 +function + +0:35:32.880,0:35:38.079 +find e key links above in this variant + +0:35:35.920,0:35:39.280 +the argument is a string that has to be + +0:35:38.079,0:35:42.400 +processed by + +0:35:39.280,0:35:45.280 +read cbd macro to convert it to the + +0:35:42.400,0:35:48.160 +lower level format + +0:35:45.280,0:35:49.040 +and note that these functions here that + +0:35:48.160,0:35:51.440 +i wrote + +0:35:49.040,0:35:53.599 +they display temporary buffers with no + +0:35:51.440,0:35:57.359 +help at all + +0:35:53.599,0:35:58.560 +uh to be honest there's a link to a + +0:35:57.359,0:36:01.680 +tutorial here but + +0:35:58.560,0:36:03.200 +this is a recent edition so let's ignore + +0:36:01.680,0:36:06.640 +this + +0:36:03.200,0:36:08.320 +uh they they display temporary buffers + +0:36:06.640,0:36:09.520 +with no help at all just lots of + +0:36:08.320,0:36:11.599 +hyperlinks + +0:36:09.520,0:36:13.359 +and these hyperlinks can be they are + +0:36:11.599,0:36:15.040 +very hacker friendly in the sense that + +0:36:13.359,0:36:17.520 +they can be followed with + +0:36:15.040,0:36:19.920 +metae they can be copied to other + +0:36:17.520,0:36:23.680 +buffers because they are plain text + +0:36:19.920,0:36:26.240 +because they are just sex + +0:36:23.680,0:36:28.000 +and they can be inspected in the sense + +0:36:26.240,0:36:31.280 +that + +0:36:28.000,0:36:31.280 +for example here + +0:36:32.400,0:36:35.520 +we have a hyperlink to a function that + +0:36:34.079,0:36:37.599 +we + +0:36:35.520,0:36:39.200 +it may be difficult to figure out what + +0:36:37.599,0:36:42.320 +this function does + +0:36:39.200,0:36:45.839 +but we can go to that position and then + +0:36:42.320,0:36:48.240 +type ctrl h f to see the descript + +0:36:45.839,0:36:52.400 +description of this function + +0:36:48.240,0:36:53.890 +and here is a hyperlink to + +0:36:52.400,0:36:56.000 +the does that + +0:36:53.890,0:36:59.920 +[Music] + +0:36:56.000,0:36:59.920 +in my syntax say + +0:37:00.160,0:37:04.480 +and this list of hyperlinks were + +0:37:02.800,0:37:08.000 +generated by + +0:37:04.480,0:37:11.119 +this code here that just just uh + +0:37:08.000,0:37:14.320 +used a back quote to to generate + +0:37:11.119,0:37:14.320 +lists of sex + +0:37:14.640,0:37:21.040 +and i i felt that this function here + +0:37:18.240,0:37:22.160 +uh that just generated this list was + +0:37:21.040,0:37:24.960 +very easy to understand + +0:37:22.160,0:37:28.480 +and to modify so this was hacker + +0:37:24.960,0:37:31.599 +friendly in the way that i wanted + +0:37:28.480,0:37:34.079 +and so i started using this + +0:37:31.599,0:37:36.800 +and this idea of using buffers with sex + +0:37:34.079,0:37:38.720 +fiber links and no help violated + +0:37:36.800,0:37:40.079 +all the notions of user friendliness + +0:37:38.720,0:37:42.000 +that i knew so i was + +0:37:40.079,0:37:46.160 +exploring some something new at that + +0:37:42.000,0:37:49.359 +time and this is the end of part two + +0:37:46.160,0:37:52.240 +part three of this presentation is uh + +0:37:49.359,0:37:54.800 +about the killer features of ev or why + +0:37:52.240,0:37:57.920 +everybody should use av or at least have + +0:37:54.800,0:37:59.280 +eev installed even if they think the tv + +0:37:57.920,0:38:01.440 +is too weird + +0:37:59.280,0:38:03.440 +so this is a very quick listing eevee + +0:38:01.440,0:38:04.240 +has lease hyperlinks which are super + +0:38:03.440,0:38:06.560 +nice + +0:38:04.240,0:38:07.599 +it comes with lots of tutorials the main + +0:38:06.560,0:38:10.800 +one here + +0:38:07.599,0:38:14.079 +explains all the main features + +0:38:10.800,0:38:15.040 +uh there's also a tutorial with that's + +0:38:14.079,0:38:18.079 +an index of + +0:38:15.040,0:38:21.680 +all the other tutorials here + +0:38:18.079,0:38:24.079 +many many many tutorials uh if we forget + +0:38:21.680,0:38:27.280 +everything we can just type meta j + +0:38:24.079,0:38:28.880 +and remember that this this part here is + +0:38:27.280,0:38:30.839 +beginner friendly and the rest is + +0:38:28.880,0:38:32.960 +beginner + +0:38:30.839,0:38:38.079 +unfriendly + +0:38:32.960,0:38:38.079 +there's a tutorial on max list here + +0:38:38.320,0:38:44.640 +it mainly explains how to understand + +0:38:41.920,0:38:46.320 +a lisp code which is much easier than + +0:38:44.640,0:38:47.040 +it's much easier to understand the lisp + +0:38:46.320,0:38:48.800 +code and + +0:38:47.040,0:38:50.160 +then to understand how to program in a + +0:38:48.800,0:38:53.440 +lisp and + +0:38:50.160,0:38:55.920 +most people are only going to need this + +0:38:53.440,0:38:58.240 +uh ev is very easy to install it's in + +0:38:55.920,0:39:00.560 +helper so we just need to do + +0:38:58.240,0:39:03.440 +this thing here and it's very + +0:39:00.560,0:39:03.440 +non-invasive + +0:39:03.520,0:39:08.000 +uh years ago several years ago it was a + +0:39:06.079,0:39:08.960 +very invasive package but then i changed + +0:39:08.000,0:39:13.520 +everything + +0:39:08.960,0:39:16.640 +now uh if we toggle ev mode on and off + +0:39:13.520,0:39:20.000 +what's going to happen is just that the + +0:39:16.640,0:39:21.599 +evk map key map becomes activated or + +0:39:20.000,0:39:24.720 +deactivated + +0:39:21.599,0:39:28.320 +and when we install the evita + +0:39:24.720,0:39:28.640 +i mean when we require the only things + +0:39:28.320,0:39:32.640 +that + +0:39:28.640,0:39:34.480 +happens globally distance here + +0:39:32.640,0:39:36.240 +several functions and variables become + +0:39:34.480,0:39:40.079 +defined all of them have + +0:39:36.240,0:39:43.040 +standard prefixes except for one + +0:39:40.079,0:39:44.480 +three characters are changed in the + +0:39:43.040,0:39:48.640 +standard display table + +0:39:44.480,0:39:52.079 +to make them appear as colored glyphs + +0:39:48.640,0:39:54.160 +the red star and two and the open + +0:39:52.079,0:39:57.839 +double angle brackets and the closed + +0:39:54.160,0:39:57.839 +double angle brackets + +0:39:58.160,0:40:04.560 +and two environment variables are set + +0:40:01.359,0:40:07.599 +and this is a trivial technicality + +0:40:04.560,0:40:10.160 +we just run a def advice + +0:40:07.599,0:40:10.800 +around one function that that is used by + +0:40:10.160,0:40:14.240 +man + +0:40:10.800,0:40:16.720 +justice also + +0:40:14.240,0:40:18.400 +eevee has a very high discoverability + +0:40:16.720,0:40:21.839 +factor + +0:40:18.400,0:40:25.200 +and there's a way to create a very easy + +0:40:21.839,0:40:27.760 +way to create a hyperlink to here + +0:40:25.200,0:40:29.760 +uh i do not have time to show this now + +0:40:27.760,0:40:32.960 +but for example if i'm + +0:40:29.760,0:40:34.480 +here in a tutorial and i think that that + +0:40:32.960,0:40:36.240 +this + +0:40:34.480,0:40:39.520 +section is something interesting and i + +0:40:36.240,0:40:41.200 +want to create a hyperlink to it + +0:40:39.520,0:40:43.040 +i just have to type a certain key + +0:40:41.200,0:40:46.800 +sequence here + +0:40:43.040,0:40:50.400 +and here i got a hyperlink that i can + +0:40:46.800,0:40:52.260 +copy to my notes and this hyperlink goes + +0:40:50.400,0:40:58.240 +to that section + +0:40:52.260,0:41:00.720 +[Music] + +0:40:58.240,0:41:02.319 +we have hyperlinks that point to + +0:41:00.720,0:41:05.839 +specific positions in + +0:41:02.319,0:41:09.119 +pdf documents and nvidia files here + +0:41:05.839,0:41:09.680 +this one opens a pdf and displays it + +0:41:09.119,0:41:13.920 +this one + +0:41:09.680,0:41:16.720 +opens a pdf and converts it to text + +0:41:13.920,0:41:18.400 +and this one opens the video in a + +0:41:16.720,0:41:20.480 +certain position + +0:41:18.400,0:41:22.079 +and we also have a way to control + +0:41:20.480,0:41:25.280 +shell-like programs + +0:41:22.079,0:41:27.440 +uh in my presentation of the last year i + +0:41:25.280,0:41:29.520 +spent one third of the presentation + +0:41:27.440,0:41:31.839 +explaining this and i think that i gave + +0:41:29.520,0:41:35.680 +a very good demonstration there + +0:41:31.839,0:41:38.800 +the demonstration is here + +0:41:35.680,0:41:41.839 +we can go to the web page and go to + +0:41:38.800,0:41:45.440 +this section of the web page + +0:41:41.839,0:41:45.440 +and start by this point + +0:41:47.680,0:41:54.079 +and here we have an explanation and so + +0:41:51.440,0:41:54.079 +on whatever + +0:41:55.920,0:41:59.200 +and i've already mentioned this before + +0:41:58.720,0:42:01.119 +uh + +0:41:59.200,0:42:02.240 +eevee comes with a very nice elise + +0:42:01.119,0:42:04.240 +tutorial + +0:42:02.240,0:42:05.599 +so that's it this is the end of part + +0:42:04.240,0:42:07.359 +three + +0:42:05.599,0:42:09.839 +so this is the last part of my + +0:42:07.359,0:42:10.160 +presentation and it's about the title of + +0:42:09.839,0:42:11.839 +the + +0:42:10.160,0:42:13.599 +the presentation i called the + +0:42:11.839,0:42:16.560 +presentation why + +0:42:13.599,0:42:16.960 +most of the best features in eevee look + +0:42:16.560,0:42:20.480 +like + +0:42:16.960,0:42:20.960 +like five minute hacks uh i've already + +0:42:20.480,0:42:23.920 +run off + +0:42:20.960,0:42:24.800 +out of time so i have to to skip this + +0:42:23.920,0:42:28.720 +first + +0:42:24.800,0:42:31.280 +part here in which i describe how i + +0:42:28.720,0:42:33.440 +was exposed to several different notions + +0:42:31.280,0:42:35.920 +of user friendliness + +0:42:33.440,0:42:37.119 +and how the one that really blew my mind + +0:42:35.920,0:42:41.680 +was the one in + +0:42:37.119,0:42:44.160 +in a certain uh fought environment + +0:42:41.680,0:42:46.560 +uh and let me make the long long story + +0:42:44.160,0:42:49.280 +very very short + +0:42:46.560,0:42:49.680 +uh in all this process i switched from + +0:42:49.280,0:42:52.079 +from + +0:42:49.680,0:42:52.960 +the belief that the user was always + +0:42:52.079,0:42:55.359 +someone else + +0:42:52.960,0:42:57.040 +someone external and that that i always + +0:42:55.359,0:43:00.079 +had to write my programs for + +0:42:57.040,0:43:02.240 +this external user i switched + +0:43:00.079,0:43:03.200 +from from that to the belief that i am + +0:43:02.240,0:43:05.839 +the user + +0:43:03.200,0:43:07.040 +and i can play with the interface that i + +0:43:05.839,0:43:10.079 +want i can + +0:43:07.040,0:43:12.079 +write programs which that + +0:43:10.079,0:43:14.240 +that only i am going to understand i can + +0:43:12.079,0:43:16.079 +experiment with hundreds of interfaces + +0:43:14.240,0:43:18.720 +and then select the best ones + +0:43:16.079,0:43:20.960 +and document them and then share them + +0:43:18.720,0:43:23.520 +with other people + +0:43:20.960,0:43:24.720 +who are also experimenting with + +0:43:23.520,0:43:28.880 +interfaces in their + +0:43:24.720,0:43:31.119 +own ways and so eevee has + +0:43:28.880,0:43:33.440 +lots of things that are user-friendly in + +0:43:31.119,0:43:34.880 +these unusual ways that i've explained + +0:43:33.440,0:43:37.760 +before + +0:43:34.880,0:43:40.319 +and uh and if we disconsider that this + +0:43:37.760,0:43:44.079 +notion of user friendliness is valid + +0:43:40.319,0:43:45.119 +then this implement these things that av + +0:43:44.079,0:43:47.280 +implement they are + +0:43:45.119,0:43:48.800 +user friendly and hacker friendly at the + +0:43:47.280,0:43:51.119 +same time + +0:43:48.800,0:43:51.920 +and let me show one example this is one + +0:43:51.119,0:43:54.640 +this is + +0:43:51.920,0:43:56.640 +one that really took me one only five + +0:43:54.640,0:43:59.599 +minutes to implement + +0:43:56.640,0:44:00.640 +uh at one point a few months ago i + +0:43:59.599,0:44:04.240 +discovered + +0:44:00.640,0:44:05.599 +that sasha chewer's weekly posts about + +0:44:04.240,0:44:08.800 +the max news + +0:44:05.599,0:44:11.440 +had uh were also being posted to a + +0:44:08.800,0:44:14.800 +mailing list that is stored at + +0:44:11.440,0:44:16.319 +lists.we know.org and it's called max + +0:44:14.800,0:44:19.280 +dungeons + +0:44:16.319,0:44:19.760 +uh and i just and i found a way to + +0:44:19.280,0:44:25.440 +create + +0:44:19.760,0:44:28.400 +the links to to the posts in both places + +0:44:25.440,0:44:30.640 +but i had to use a template for that so + +0:44:28.400,0:44:32.560 +what we are seeing here now + +0:44:30.640,0:44:36.640 +is a template with the the default + +0:44:32.560,0:44:39.359 +values so this means that we have not uh + +0:44:36.640,0:44:40.720 +set the year correctly we have not set + +0:44:39.359,0:44:44.240 +the month correctly + +0:44:40.720,0:44:44.720 +or the day correctly but if we run this + +0:44:44.240,0:44:48.960 +text + +0:44:44.720,0:44:53.359 +here uh let me do something else before + +0:44:48.960,0:44:57.280 +if we run this text here + +0:44:53.359,0:45:00.240 +which we change some of these + +0:44:57.280,0:45:00.240 +entries in the + +0:45:00.880,0:45:05.200 +in the template and we get these links + +0:45:04.400,0:45:09.119 +here + +0:45:05.200,0:45:12.160 +they all work for example this one opens + +0:45:09.119,0:45:12.800 +uh the blog post in in session sasha + +0:45:12.160,0:45:16.000 +chewers + +0:45:12.800,0:45:21.280 +site and this one + +0:45:16.000,0:45:23.440 +opens it in the mailing list + +0:45:21.280,0:45:25.760 +and sometimes i want the org source of + +0:45:23.440,0:45:27.280 +that and the easiest way to get the word + +0:45:25.760,0:45:30.480 +source is to + +0:45:27.280,0:45:31.680 +look at this link here that has an + +0:45:30.480,0:45:35.040 +attachment + +0:45:31.680,0:45:38.560 +and if i take this + +0:45:35.040,0:45:42.319 +link here and i take this + +0:45:38.560,0:45:44.480 +stem that points to to the attachment + +0:45:42.319,0:45:45.440 +and i put it here and i generate this + +0:45:44.480,0:45:49.119 +page again + +0:45:45.440,0:45:50.000 +with all this data then i get a script + +0:45:49.119,0:45:53.359 +here + +0:45:50.000,0:45:54.640 +that downloads let me switch to a + +0:45:53.359,0:45:58.160 +smaller font + +0:45:54.640,0:46:00.960 +it downloads this attachment + +0:45:58.160,0:46:01.599 +and it renames that attachment to + +0:46:00.960,0:46:06.000 +something + +0:46:01.599,0:46:10.720 +dot slash nx news sorry some things + +0:46:06.000,0:46:15.119 +uh iphone mx news hyphen + +0:46:10.720,0:46:17.599 +something mxnews.org here + +0:46:15.119,0:46:18.400 +the file is already here already with + +0:46:17.599,0:46:21.359 +the right name + +0:46:18.400,0:46:22.079 +so i can open it with just this + +0:46:21.359,0:46:23.780 +hyperlink + +0:46:22.079,0:46:25.200 +let me go to the big font again + +0:46:23.780,0:46:28.079 +[Music] + +0:46:25.200,0:46:29.280 +and now i have the work source for that + +0:46:28.079,0:46:32.720 +hyperlink + +0:46:29.280,0:46:32.720 +sorry for that blog post + +0:46:33.839,0:46:40.960 +and so this one line thing + +0:46:37.040,0:46:43.920 +here is in a sense + +0:46:40.960,0:46:45.119 +a a to to this blog post in all its + +0:46:43.920,0:46:48.640 +formats + +0:46:45.119,0:46:52.000 +uh if i execute this i get links to + +0:46:48.640,0:46:54.400 +to all the places where it is posted + +0:46:52.000,0:46:56.000 +and i get a hype and i get a script to + +0:46:54.400,0:47:00.480 +download the local copy + +0:46:56.000,0:47:03.200 +of the org source of it and that's it + +0:47:00.480,0:47:04.480 +well i'm already out of time so let me + +0:47:03.200,0:47:10.079 +finish here + +0:47:04.480,0:47:10.079 +thanks bye + |