diff --git a/content/xeus-lua/canvas.ipynb b/content/xeus-lua/canvas.ipynb
deleted file mode 100644
index 89f9e52d0..000000000
--- a/content/xeus-lua/canvas.ipynb
+++ /dev/null
@@ -1,29 +0,0 @@
-{
- "metadata": {
- "orig_nbformat": 4,
- "language_info": {
- "file_extension": ".lua",
- "mimetype": "text/x-luasrc",
- "name": "lua",
- "version": "14.0.0"
- },
- "kernelspec": {
- "name": "Lua",
- "display_name": "Lua",
- "language": "lua"
- }
- },
- "nbformat_minor": 4,
- "nbformat": 4,
- "cells": [
- {
- "cell_type": "code",
- "source": "canvas = ilua.canvas.canvas()\nilua.display.display(canvas)\ncanvas:cache()\nfor var=1,100 do\n canvas:begin_path()\n canvas:move_to(canvas:rand_coord())\n for s=1,10 do\n canvas:line_to(canvas:rand_coord())\n end\n canvas.fill_style = canvas:rand_color()\n canvas:fill()\nend\ncanvas:flush()",
- "metadata": {
- "trusted": true
- },
- "execution_count": null,
- "outputs": []
- }
- ]
-}
\ No newline at end of file
diff --git a/content/xeus-lua/game-of-life.ipynb b/content/xeus-lua/game-of-life.ipynb
deleted file mode 100644
index 09dabe4b5..000000000
--- a/content/xeus-lua/game-of-life.ipynb
+++ /dev/null
@@ -1,92 +0,0 @@
-{
- "metadata":{
- "orig_nbformat":4,
- "kernelspec":{
- "name":"Lua",
- "display_name":"Lua",
- "language":"lua"
- },
- "language_info":{
- "file_extension":".lua",
- "mimetype":"text/x-luasrc",
- "name":"lua",
- "version":"14.0.0"
- }
- },
- "nbformat_minor":5,
- "nbformat":4,
- "cells":[
- {
- "cell_type":"code",
- "source":"math = require(\"math\")\n\n-- the game of life class itself\nGameOfLife = {}\nGameOfLife.__index = GameOfLife\nfunction GameOfLife:Create(grid_size)\n local this =\n {\n grid_size = grid_size or {10,10},\n grid = {}\n }\n setmetatable(this, GameOfLife)\n this.size = this.grid_size[1] * this.grid_size[2]\n for i=1,this.size do\n this.grid[i] = 0\n end\n return this\nend",
- "metadata":{
- "trusted":true
- },
- "execution_count":null,
- "outputs":[
-
- ],
- "id":"61dc1d13-5546-477d-a162-e18ec564e3ee"
- },
- {
- "cell_type":"code",
- "source":"-- member function to initalize with some random values\nfunction GameOfLife:init_random(p)\n for i=1,self.size do\n self.grid[i] = (math.random() < p) and 1 or 0\n end\nend",
- "metadata":{
- "trusted":true
- },
- "execution_count":null,
- "outputs":[
-
- ],
- "id":"72da5a15-dd9d-4a62-bfa3-5a3ec457c5f4"
- },
- {
- "cell_type":"code",
- "source":"-- helper function to convert a coordinate {x,y} into a \n-- scalar offset\nfunction GameOfLife:to_offset(coord)\n return (coord[1]-1) * self.grid_size[2] + (coord[2] -1) + 1\nend\n-- helper function to access the value of the grid at a coordinate {x,y}\nfunction GameOfLife:at(coord)\n return self.grid[self:to_offset(coord)]\nend",
- "metadata":{
- "trusted":true
- },
- "execution_count":null,
- "outputs":[
-
- ],
- "id":"0b341677-64f2-4ef3-8ea4-a8e2eb275df2"
- },
- {
- "cell_type":"code",
- "source":"-- the function to do a step\nfunction GameOfLife:step()\n new_grid = {}\n \n for x=1,self.grid_size[1] do\n for y=1, self.grid_size[2] do\n \n local c = 0\n for xx=-1,1 do\n for yy=-1,1 do\n nx = x + xx\n ny = y + yy\n if nx >=1 and ny>=1 and nx <=self.grid_size[1] and ny <=self.grid_size[2] and not (xx==0 and yy ==0) then\n c = c + self:at({nx,ny})\n end\n end\n end\n \n local offset = self:to_offset({x,y})\n local current_state = self:at({x,y})\n \n new_grid[offset] = 0\n if current_state == 0 then\n if c == 3 then\n new_grid[offset] = 1\n end\n else\n if c==2 or c==3 then\n new_grid[offset] = 1\n else\n new_grid[offset] = 0\n end\n end\n-- \n end\n end\n self.grid = new_grid\nend",
- "metadata":{
- "trusted":true
- },
- "execution_count":null,
- "outputs":[
-
- ],
- "id":"7958dd53-006c-480d-a4ad-9f04b147fd29"
- },
- {
- "cell_type":"code",
- "source":"-- helper function to draw the grid as string\nfunction GameOfLife:__tostring()\n s = \"*\"\n for y=1, self.grid_size[2] do\n s = s .. \"--\"\n end\n s = s .. \"*\\n\"\n for x=1,self.grid_size[1] do\n s = s .. \"|\"\n for y=1, self.grid_size[2] do\n local state = self:at({x,y})\n if state == 0 then\n ss = \" \"\n else\n ss = \"O\"\n end\n s = s .. ss .. \" \"\n end\n s = s .. \"|\\n\"\n end\n s = s .. \"*\"\n for y=1, self.grid_size[2] do\n s = s .. \"--\"\n end\n s = s .. \"*\\n\"\n return s\nend",
- "metadata":{
- "trusted":true
- },
- "execution_count":null,
- "outputs":[
-
- ],
- "id":"884414f6-8bc9-4719-9671-ef3be310356b"
- },
- {
- "cell_type":"code",
- "source":"-- initalize the game of life\ngrid_size = {20,20}\ngame_of_life = GameOfLife:Create(grid_size)\ngame_of_life:init_random(0.5)\n\n-- a tiny gui\nfunction speed_to_interval(speed)\n return 1.0 / speed\nend\n\nspeed = 0.001\n\nhbox = ilua.widgets.hbox()\n\nplay = ilua.widgets.play({interval=speed_to_interval(speed), max=1000000})\noutput = ilua.widgets.output()\nstep_label = ilua.widgets.label({value=\"Step: \"..tostring(play.value)})\nspeed_label = ilua.widgets.label({value=\"Speed: \"..tostring(speed)})\nspeed_slider = ilua.widgets.slider({min=0.001, max=0.5, step=0.01})\n\nhbox:add(play,step_label,speed_label)\n\nspeed_slider:register_observer(function(value)\n output:captured(function()\n speed = value\n play.interval = speed_to_interval(speed)\n speed_label.value = \"Speed: \" .. tostring(speed)\n end)\nend)\n\nplay:register_observer(function(value)\n if value <= 0.1 then\n game_of_life:init_random(0.24)\n end\n -- use output widget to caputre prints \n output:captured(function()\n ilua.display.clear_output(false)\n step_label.value = \"STEP \"..tostring(play.value)\n game_of_life:step()\n print(tostring(game_of_life))\n end)\nend)\nilua.display.display(hbox,speed_slider, output)",
- "metadata":{
- "trusted":true
- },
- "execution_count":null,
- "outputs":[
-
- ],
- "id":"40cabf23-7eef-4501-badd-99c1a68c5ced"
- }
- ]
-}
\ No newline at end of file
diff --git a/content/xeus-lua/widgets.ipynb b/content/xeus-lua/widgets.ipynb
deleted file mode 100644
index ef337f048..000000000
--- a/content/xeus-lua/widgets.ipynb
+++ /dev/null
@@ -1,632 +0,0 @@
-{
- "cells": [
- {
- "cell_type": "markdown",
- "id": "6d755081-7f9f-4c6a-93e5-a28c8627a0ec",
- "metadata": {},
- "source": [
- "Button\n",
- "======="
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "be69e205-0c56-44b7-926b-5482d5300a38",
- "metadata": {},
- "outputs": [],
- "source": [
- "button = ilua.widgets.button({description=\"hello\"})\n",
- "output = ilua.widgets.output()\n",
- "ilua.display.display(button,output)\n",
- "button:on_click(function()\n",
- " output:captured(function()\n",
- " print(\"clicked\")\n",
- " end)\n",
- "end)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "d11b0def-5115-4369-9972-4766802c846f",
- "metadata": {
- "tags": []
- },
- "source": [
- "Box Layout\n",
- "=========="
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "5d044224-ac2e-4722-b3fb-6d75b13ec366",
- "metadata": {
- "tags": []
- },
- "outputs": [],
- "source": [
- "slider_a = ilua.widgets.slider({min=1, max=2, step=0.1})\n",
- "slider_b = ilua.widgets.slider({min=10, max=20, step=1})\n",
- "hbox = ilua.widgets.hbox()\n",
- "output = ilua.widgets.output()\n",
- "hbox:add(slider_a, slider_b)\n",
- "ilua.display.display(hbox,output)\n",
- "\n",
- "slider_a:register_observer(function(value)\n",
- " output:captured(function()\n",
- " io.write(\"f(x) = x**2; f(\", value ,\")=\", value*value,\"\\n\")\n",
- " end)\n",
- "end)\n",
- "slider_b:register_observer(function(value)\n",
- " output:captured(function()\n",
- " io.write(\"f(x) = x**3; f(\", value ,\")=\", value*value*value,\"\\n\")\n",
- " end)\n",
- "end)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "98e79948-9aeb-4c31-a7b9-3c6bce6c026f",
- "metadata": {},
- "source": [
- "Accordion\n",
- "================"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "b755c37d-602a-4b46-97ee-8e044f2f2314",
- "metadata": {},
- "outputs": [],
- "source": [
- "output = ilua.widgets.output()\n",
- "button = ilua.widgets.button({description=\"a button\"})\n",
- "button:on_click(function() \n",
- " output:captured(function()\n",
- " print(\"clicked button\")\n",
- " end)\n",
- "end)\n",
- "slider = ilua.widgets.slider()\n",
- "color_picker = ilua.widgets.color_picker()\n",
- "audio = ilua.widgets.audio()\n",
- "accordion = ilua.widgets.accordion()\n",
- "accordion:add(slider,button,color_picker,audio)\n",
- "accordion:set_title(1,\"the slider\")\n",
- "accordion:set_title(2,\"the button\")\n",
- "accordion:set_title(3,\"the color_picker\")\n",
- "accordion:set_title(4,\"the audio\")\n",
- "ilua.display.display(accordion, output)\n",
- "\n",
- "slider:register_observer(function(value)\n",
- " output:captured(function()\n",
- " print(\"slider value\", value)\n",
- " end)\n",
- "end)\n",
- "\n",
- "color_picker:register_observer(function(value)\n",
- " output:captured(function()\n",
- " print(\"color_picker value\", value)\n",
- " end)\n",
- "end)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "097d19f7-a0c9-48a9-8eff-6e3e06780c88",
- "metadata": {
- "tags": []
- },
- "source": [
- "Dropdown\n",
- "========="
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "95e12c50-4e77-457c-b2c2-6d20421a3bea",
- "metadata": {},
- "outputs": [],
- "source": [
- "labels = {\"aaa\", \"bb\",\"cc\"}\n",
- "dropdown = ilua.widgets.dropdown({_options_labels= labels})\n",
- "output = ilua.widgets.output()\n",
- "dropdown:register_observer(function(index)\n",
- " output:captured(function()\n",
- " print(labels[index])\n",
- " end)\n",
- "end)\n",
- "\n",
- "ilua.display.display(dropdown, output)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "ca362331-bd0c-4203-9a6f-dc937d309297",
- "metadata": {},
- "source": [
- "Html\n",
- "======="
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "abc66753-53ba-4361-96a6-48cd9460c8e3",
- "metadata": {
- "tags": []
- },
- "outputs": [],
- "source": [
- "src = [[\n",
- "\n",
- "\n",
- "
\n",
- " \n",
- " \n",
- " My First Page
\n",
- " This is my first page.
\n",
- " A secondary header.
\n",
- " Some more text.
\n",
- " \n",
- "\n",
- "]]\n",
- "html = ilua.widgets.html({value=src})\n",
- "ilua.display.display(html)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "e8eeacfe-350a-4ecb-81a9-c8091af3c22e",
- "metadata": {
- "tags": []
- },
- "source": [
- "numeral\n",
- "========"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "9c177cfe-2613-43a3-a217-d93bc257420e",
- "metadata": {},
- "outputs": [],
- "source": [
- "numeral = ilua.widgets.numeral()\n",
- "output = ilua.widgets.output()\n",
- "numeral:register_observer(function(value)\n",
- " output:captured(function()\n",
- " print(\"value\", value)\n",
- " end)\n",
- "end)\n",
- "ilua.display.display(numeral, output)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "9fede355-2e4f-48c9-b39b-1886e060ce8b",
- "metadata": {},
- "source": [
- "password\n",
- "========"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "455996cf-9b63-4d50-869a-0f479ab3daf4",
- "metadata": {},
- "outputs": [],
- "source": [
- "password = ilua.widgets.password()\n",
- "output = ilua.widgets.output()\n",
- "password:register_observer(function(value)\n",
- " output:captured(function()\n",
- " print(\"value\", value)\n",
- " end)\n",
- "end)\n",
- "\n",
- "ilua.display.display(password, output)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "6306ce8e-37d3-4dbc-a8cf-955b2dfe684c",
- "metadata": {},
- "source": [
- "play\n",
- "====="
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "986147ab-c9de-4ad9-b8be-f65260dd815d",
- "metadata": {},
- "outputs": [],
- "source": [
- "play = ilua.widgets.play({interval=1000})\n",
- "output = ilua.widgets.output()\n",
- "play:register_observer(function(value)\n",
- " output:captured(function()\n",
- " print(\"value\", value)\n",
- " end)\n",
- "end)\n",
- "\n",
- "ilua.display.display(play, output)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "4e03ccf2-3a10-40d6-8273-168a91f3d9a7",
- "metadata": {},
- "source": [
- "progress\n",
- "========="
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "a4f194ee-0995-44f3-8636-b629bd5b65ba",
- "metadata": {},
- "outputs": [],
- "source": [
- "progress = ilua.widgets.progress({min=10, max=20})\n",
- "play = ilua.widgets.play({min=10, max=20, interval=100})\n",
- "play:register_observer(function(value)\n",
- " progress.value = value\n",
- "end)\n",
- "ilua.display.display(play, progress)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "39714034-99f4-4f36-b50f-33aa3f71d2a6",
- "metadata": {},
- "source": [
- "Selection Slider\n",
- "================="
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "7f6aab9e-b3ce-4df9-83a6-94eb725aceb0",
- "metadata": {},
- "outputs": [],
- "source": [
- "labels = {\"aaa\", \"bb\",\"cc\"}\n",
- "selectionslider = ilua.widgets.selectionslider({_options_labels = labels})\n",
- "output = ilua.widgets.output()\n",
- "selectionslider:register_observer(function(index)\n",
- " output:captured(function()\n",
- " print(labels[index])\n",
- " end)\n",
- "end)\n",
- "\n",
- "ilua.display.display(selectionslider, output)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "45d72396-3fcc-421e-865e-487d93b333b8",
- "metadata": {},
- "source": [
- "Tab\n",
- "======"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "6d0684e8-62a2-4483-995a-70d7cc2783ac",
- "metadata": {},
- "outputs": [],
- "source": [
- "\n",
- "\n",
- "slider_a = ilua.widgets.slider()\n",
- "slider_b = ilua.widgets.slider()\n",
- "\n",
- "titles = {\"aaa\", \"bb\",\"cc\"}\n",
- "tab = ilua.widgets.tab({_titles = titles})\n",
- "tab:add(slider_a,slider_b)\n",
- "output = ilua.widgets.output()\n",
- "\n",
- "tab:register_observer(function(index)\n",
- " -- use output widget to caputre prints \n",
- " output:captured(function()\n",
- " print(titles[index])\n",
- " end)\n",
- "end)\n",
- "\n",
- "ilua.display.display(tab,output)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "7f9f85de-a5b8-4e60-9eff-33b25d819ec9",
- "metadata": {},
- "source": [
- "Text\n",
- "====="
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "893e92ad-eff2-4adb-ba82-71a9ed2cfe9e",
- "metadata": {},
- "outputs": [],
- "source": [
- "text = ilua.widgets.text()\n",
- "output = ilua.widgets.output()\n",
- "text:register_observer(function(value)\n",
- " output:captured(function()\n",
- " print(\"value\", value)\n",
- " end)\n",
- "end)\n",
- "\n",
- "text:on_submit(function()\n",
- " output:captured(function()\n",
- " print(\"on_submit\")\n",
- " end)\n",
- "end)\n",
- "\n",
- "ilua.display.display(text, output)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "94572d62-12ea-4026-a531-d0e7bc5b20b9",
- "metadata": {},
- "source": [
- "TextArea\n",
- "========="
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "1e76b56f-f087-49f8-a50e-eb794060c63c",
- "metadata": {},
- "outputs": [],
- "source": [
- "textarea = ilua.widgets.textarea({continuous_update=false})\n",
- "output = ilua.widgets.output()\n",
- "textarea:register_observer(function(value)\n",
- " output:captured(function()\n",
- " print(\"value\", value)\n",
- " end)\n",
- "end)\n",
- "ilua.display.display(textarea, output)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "68011d67-ac8c-43ff-bae9-4caf95273f98",
- "metadata": {},
- "source": [
- "Toggle Button\n",
- "========="
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "cf780275-b2de-48d4-bb2e-3f38e8c45bcd",
- "metadata": {
- "tags": []
- },
- "outputs": [],
- "source": [
- "togglebutton = ilua.widgets.togglebutton({\n",
- " icon=\"plus\",\n",
- " button_style=\"\"\n",
- "})\n",
- "output = ilua.widgets.output()\n",
- "togglebutton:register_observer(function(value)\n",
- " output:captured(function()\n",
- " print(\"value\", value)\n",
- " end)\n",
- "end)\n",
- "\n",
- "ilua.display.display(togglebutton, output)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "1bc5c504-cf9c-432f-a91c-2497910d787b",
- "metadata": {},
- "source": [
- "ToggleButtons\n",
- "========="
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "f764f285-d71f-4c93-92b4-923484846b0c",
- "metadata": {},
- "outputs": [],
- "source": [
- "togglebuttons = ilua.widgets.togglebuttons()\n",
- "togglebuttons._options_labels = {\"1\", \"2\",\"3\"}\n",
- "output = ilua.widgets.output()\n",
- "togglebuttons:register_observer(function(value)\n",
- " output:captured(function()\n",
- " print(\"value\", value)\n",
- " end)\n",
- "end)\n",
- "\n",
- "ilua.display.display(togglebuttons, output)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "55447db2-bab0-4282-9a89-f6b9f8fd9e30",
- "metadata": {},
- "source": [
- "Image\n",
- "========"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "d21c5e4b-1d27-44e9-9966-0da4ef55f651",
- "metadata": {},
- "outputs": [],
- "source": [
- "io = require(\"io\")\n",
- "file = io.open(\"marie.png\", \"r\")\n",
- "content = file:read(\"*all\")\n",
- "io.close(file)\n",
- "\n",
- "image = ilua.widgets.image()\n",
- "image.value = content\n",
- "ilua.display.display(image)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "ee4e079c-0101-49a9-94f6-2d7e73ad3f59",
- "metadata": {
- "tags": []
- },
- "source": [
- "Video\n",
- "========"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "654c050a-3cff-48d2-b7a1-d8f6acfe042a",
- "metadata": {},
- "outputs": [],
- "source": [
- "io = require(\"io\")\n",
- "file = io.open(\"Big.Buck.Bunny.mp4\", \"r\")\n",
- "content = file:read(\"*all\")\n",
- "io.close(file)\n",
- "\n",
- "video = ilua.widgets.video({loop=false})\n",
- "video.value = content\n",
- "ilua.display.display(video)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "829cf76c-238d-456f-a5b9-51f3a526f45c",
- "metadata": {},
- "source": [
- "Audio\n",
- "======"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "43922e68-ee53-40bd-bf2c-8dcc810bdb6a",
- "metadata": {},
- "outputs": [],
- "source": [
- "io = require(\"io\")\n",
- "file = io.open(\"hehe.flac\", \"r\")\n",
- "content = file:read(\"*all\")\n",
- "io.close(file)\n",
- "\n",
- "audio = ilua.widgets.audio({loop=false})\n",
- "audio.value = content\n",
- "ilua.display.display(audio)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "2aee848b-a3e6-4ce3-9d2d-8650871bb225",
- "metadata": {},
- "source": [
- "Valid\n",
- "======"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "ef2ae714-2077-4767-9c24-af821fbc2c9d",
- "metadata": {},
- "outputs": [],
- "source": [
- "valid = ilua.widgets.valid()\n",
- "valid.value = false\n",
- "ilua.display.display(valid)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "96b64ffe-ac69-4b0e-9299-0a54842a77c1",
- "metadata": {},
- "source": [
- "Link Widgets\n",
- "============"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "191675ca-c53e-4c83-a0cf-8dcd78b02fae",
- "metadata": {},
- "outputs": [],
- "source": [
- "slider = ilua.widgets.slider()\n",
- "numeral = ilua.widgets.numeral()\n",
- "\n",
- "link = ilua.widgets.link(slider, \"value\", numeral, \"value\")\n",
- "ilua.display.display(link, slider, numeral)"
- ]
- },
- {
- "cell_type": "markdown",
- "id": "3d54b0cc-7f2f-4ad7-92a8-9f61abe989f9",
- "metadata": {},
- "source": [
- "Directional Link\n",
- "==================="
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "id": "21499154-6da9-4a4a-a6ce-7637916d26c6",
- "metadata": {},
- "outputs": [],
- "source": [
- "slider = ilua.widgets.slider()\n",
- "numeral = ilua.widgets.numeral()\n",
- "\n",
- "link = ilua.widgets.directional_link(slider, \"value\", numeral, \"value\")\n",
- "ilua.display.display(link, slider, numeral)"
- ]
- }
- ],
- "metadata": {
- "kernelspec": {
- "display_name": "Lua 0.2 (XLua)",
- "language": "lua",
- "name": "xlua"
- },
- "language_info": {
- "file_extension": ".lua",
- "mimetype": "text/x-luasrc",
- "name": "lua",
- "version": "14.0.0"
- }
- },
- "nbformat": 4,
- "nbformat_minor": 5
-}
diff --git a/content/xeus-sqlite/simple-operations.ipynb b/content/xeus-sqlite/simple-operations.ipynb
deleted file mode 100644
index 5d4c4a6e9..000000000
--- a/content/xeus-sqlite/simple-operations.ipynb
+++ /dev/null
@@ -1,392 +0,0 @@
-{
- "metadata": {
- "kernelspec": {
- "name": "SQLite",
- "display_name": "SQLite",
- "language": "sql"
- },
- "language_info": {
- "file_extension": ".sqlite3-console",
- "mimetype": "text/x-sqlite3-console",
- "name": "sqlite3",
- "version": "0.4.0"
- }
- },
- "nbformat_minor": 4,
- "nbformat": 4,
- "cells": [
- {
- "cell_type": "markdown",
- "source": "# JupyterLite `xeus-sqlite` Kernel Demo\n\nThe [`jupyterlite/xeus-sqlite-kernel`](https://github.com/jupyterlite/xeus-sqlite-kernel) wraps the original [`jupyter-xeus/xeus-sqlite`](https://github.com/jupyter-xeus/xeus-sqlite/) kernel for use in JupyterLite.\n\nOriginal kernel docs can be found [here](https://xeus-sqlite.readthedocs.io/en/latest/).\n\nThe kernel provides cell magic for command line database operations, and native execution of SQL code against a connected database.",
- "metadata": {}
- },
- {
- "cell_type": "markdown",
- "source": "## Creating a Database\n\nLine magic is used to create an in-memory database:",
- "metadata": {}
- },
- {
- "cell_type": "code",
- "source": "%CREATE example_db.db",
- "metadata": {
- "trusted": true
- },
- "execution_count": 1,
- "outputs": []
- },
- {
- "cell_type": "markdown",
- "source": "Currently, there is no ability to:\n\n- save the database to browser storage;\n- export the database;\n- load a database from browser storage;\n- load a database from a URL;\n- load a database from the desktop;\n- connect to a remote sqlite database file.",
- "metadata": {}
- },
- {
- "cell_type": "markdown",
- "source": "## Create and Populate Tables\n\nTables are created and populated using SQL:",
- "metadata": {}
- },
- {
- "cell_type": "code",
- "source": "CREATE TABLE players (Name STRING, Class STRING, Level INTEGER, Hitpoints INTEGER)",
- "metadata": {
- "trusted": true
- },
- "execution_count": 2,
- "outputs": []
- },
- {
- "cell_type": "code",
- "source": "INSERT INTO players (Name, Class, Level, Hitpoints) VALUES (\"Martin Splitskull\", \"Warrior\", 3, 40)",
- "metadata": {
- "trusted": true
- },
- "execution_count": 3,
- "outputs": []
- },
- {
- "cell_type": "code",
- "source": "SELECT COUNT(*) as rowcount FROM players",
- "metadata": {
- "trusted": true
- },
- "execution_count": 4,
- "outputs": [
- {
- "execution_count": 4,
- "output_type": "execute_result",
- "data": {
- "text/html": "",
- "text/plain": "+----------+\n| rowcount |\n+----------+\n| 1 |\n+----------+"
- },
- "metadata": {}
- }
- ]
- },
- {
- "cell_type": "markdown",
- "source": "Only one command can be executed from within a single code cell:",
- "metadata": {}
- },
- {
- "cell_type": "code",
- "source": "INSERT INTO players (Name, Class, Level, Hitpoints) VALUES (\"Sir Wolf\", \"Cleric\", 2, 20);\n\n-- The following will not be inserted\nINSERT INTO players (Name, Class, Level, Hitpoints) VALUES (\"Sylvain, The Grey\", \"Wizard\", 1, 10);",
- "metadata": {
- "trusted": true
- },
- "execution_count": 5,
- "outputs": []
- },
- {
- "cell_type": "code",
- "source": "SELECT Name, Level, Hitpoints FROM players;",
- "metadata": {
- "trusted": true
- },
- "execution_count": 6,
- "outputs": [
- {
- "execution_count": 6,
- "output_type": "execute_result",
- "data": {
- "text/html": "\n\nName | \nLevel | \nHitpoints | \n
\n\nMartin Splitskull | \n3 | \n40 | \n
\n\nSir Wolf | \n2 | \n20 | \n
\n
",
- "text/plain": "+-------------------+-------+-----------+\n| Name | Level | Hitpoints |\n+-------------------+-------+-----------+\n| Martin Splitskull | 3 | 40 |\n+-------------------+-------+-----------+\n| Sir Wolf | 2 | 20 |\n+-------------------+-------+-----------+"
- },
- "metadata": {}
- }
- ]
- },
- {
- "cell_type": "code",
- "source": "INSERT INTO players (Name, Class, Level, Hitpoints) VALUES (\"Sylvain, The Grey\", \"Wizard\", 1, 10);",
- "metadata": {
- "trusted": true
- },
- "execution_count": 7,
- "outputs": []
- },
- {
- "cell_type": "code",
- "source": "SELECT Name, Level, Hitpoints FROM players;",
- "metadata": {
- "trusted": true
- },
- "execution_count": 8,
- "outputs": [
- {
- "execution_count": 8,
- "output_type": "execute_result",
- "data": {
- "text/html": "\n\nName | \nLevel | \nHitpoints | \n
\n\nMartin Splitskull | \n3 | \n40 | \n
\n\nSir Wolf | \n2 | \n20 | \n
\n\nSylvain, The Grey | \n1 | \n10 | \n
\n
",
- "text/plain": "+-------------------+-------+-----------+\n| Name | Level | Hitpoints |\n+-------------------+-------+-----------+\n| Martin Splitskull | 3 | 40 |\n+-------------------+-------+-----------+\n| Sir Wolf | 2 | 20 |\n+-------------------+-------+-----------+\n| Sylvain, The Grey | 1 | 10 |\n+-------------------+-------+-----------+"
- },
- "metadata": {}
- }
- ]
- },
- {
- "cell_type": "markdown",
- "source": "## Quuerying Tables\n\nA full range of SQL query commands are supported, including aggregation operations:",
- "metadata": {}
- },
- {
- "cell_type": "code",
- "source": "SELECT SUM (Level) FROM players",
- "metadata": {
- "trusted": true
- },
- "execution_count": null,
- "outputs": []
- },
- {
- "cell_type": "markdown",
- "source": "Grouping also works:",
- "metadata": {}
- },
- {
- "cell_type": "code",
- "source": "SELECT Level, SUM(Hitpoints) AS `Total Hitpoints`\nFROM players\nGROUP BY Level\nORDER BY `Total Hitpoints` DESC;",
- "metadata": {
- "trusted": true
- },
- "execution_count": 11,
- "outputs": [
- {
- "execution_count": 11,
- "output_type": "execute_result",
- "data": {
- "text/html": "\n\nLevel | \nTotal Hitpoints | \n
\n\n3 | \n40 | \n
\n\n2 | \n20 | \n
\n\n1 | \n10 | \n
\n
",
- "text/plain": "+-------+-----------------+\n| Level | Total Hitpoints |\n+-------+-----------------+\n| 3 | 40 |\n+-------+-----------------+\n| 2 | 20 |\n+-------+-----------------+\n| 1 | 10 |\n+-------+-----------------+"
- },
- "metadata": {}
- }
- ]
- },
- {
- "cell_type": "markdown",
- "source": "## Charting Using Vega\n\nThe `jupyter-xeus/xeus-sqlite` kernel also bundles Vega charting components.\n\nVega charts can be generated by piping the result of a SQL query into a Vega line magic command.",
- "metadata": {}
- },
- {
- "cell_type": "code",
- "source": "%XVEGA_PLOT\n X_FIELD Level\n Y_FIELD Hitpoints\n MARK circle\n WIDTH 100\n HEIGHT 200\n <>\n SELECT Level, Hitpoints FROM players",
- "metadata": {
- "trusted": true
- },
- "execution_count": 12,
- "outputs": [
- {
- "execution_count": 12,
- "output_type": "execute_result",
- "data": {
- "text/html": "\n\nLevel | \nHitpoints | \n
\n\n3 | \n40 | \n
\n\n2 | \n20 | \n
\n\n1 | \n10 | \n
\n
",
- "text/plain": "+-------+-----------+\n| Level | Hitpoints |\n+-------+-----------+\n| 3 | 40 |\n+-------+-----------+\n| 2 | 20 |\n+-------+-----------+\n| 1 | 10 |\n+-------+-----------+"
- },
- "metadata": {}
- },
- {
- "execution_count": 12,
- "output_type": "execute_result",
- "data": {
- "application/vnd.vegalite.v3+json": {
- "$schema": "https://vega.github.io/schema/vega-lite/v4.json",
- "config": {
- "axis": {
- "grid": true
- }
- },
- "data": {
- "values": [
- {
- "Hitpoints": "name",
- "Level": "name"
- },
- {
- "Hitpoints": "40",
- "Level": "3"
- },
- {
- "Hitpoints": "20",
- "Level": "2"
- },
- {
- "Hitpoints": "10",
- "Level": "1"
- }
- ]
- },
- "encoding": {
- "x": {
- "field": "Level",
- "type": "quantitative"
- },
- "y": {
- "field": "Hitpoints",
- "type": "quantitative"
- }
- },
- "height": 200,
- "mark": {
- "type": "circle"
- },
- "width": 100
- },
- "image/png": "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"
- },
- "metadata": {}
- }
- ]
- },
- {
- "cell_type": "markdown",
- "source": "## Database Admininstration\n\nSeveral line magics are defined to support database administration",
- "metadata": {}
- },
- {
- "cell_type": "code",
- "source": "%TABLE_EXISTS players",
- "metadata": {
- "trusted": true
- },
- "execution_count": 15,
- "outputs": [
- {
- "execution_count": 15,
- "output_type": "execute_result",
- "data": {
- "text/plain": "The table players exists."
- },
- "metadata": {}
- }
- ]
- },
- {
- "cell_type": "code",
- "source": "%TABLE_EXISTS npcs",
- "metadata": {
- "trusted": true
- },
- "execution_count": 16,
- "outputs": [
- {
- "execution_count": 16,
- "output_type": "execute_result",
- "data": {
- "text/plain": "The table npcs doesn't exist."
- },
- "metadata": {}
- }
- ]
- },
- {
- "cell_type": "code",
- "source": "%GET_INFO",
- "metadata": {
- "trusted": true
- },
- "execution_count": 17,
- "outputs": [
- {
- "execution_count": 17,
- "output_type": "execute_result",
- "data": {
- "text/plain": "Magic header string: SQLite format 3\nPage size bytes: 4096\nFile format write version: 1\nFile format read version: 1\nReserved space bytes: 0\nMax embedded payload fraction 64\nMin embedded payload fraction: 32\nLeaf payload fraction: 32\nFile change counter: 4\nDatabase size pages: 2\nFirst freelist trunk page: 0\nTotal freelist trunk pages: 0\nSchema cookie: 1\nSchema format number: 4\nDefault page cache size bytes: 0\nLargest B tree page number: 0\nDatabase text encoding: 1\nUser version: 0\nIncremental vaccum mode: 0\nApplication ID: 0\nVersion valid for: 4\nSQLite version: 3032003\n"
- },
- "metadata": {}
- }
- ]
- },
- {
- "cell_type": "markdown",
- "source": "## Connecting to a Different Databases\n\nCreating a new database will connect the kernel to the new database instance.",
- "metadata": {}
- },
- {
- "cell_type": "code",
- "source": "%CREATE potato.db ",
- "metadata": {
- "trusted": true
- },
- "execution_count": 18,
- "outputs": []
- },
- {
- "cell_type": "code",
- "source": "CREATE TABLE potaters(production INTEGER)",
- "metadata": {
- "trusted": true
- },
- "execution_count": 19,
- "outputs": []
- },
- {
- "cell_type": "code",
- "source": "INSERT INTO potaters (production) VALUES (7)",
- "metadata": {
- "trusted": true
- },
- "execution_count": 20,
- "outputs": []
- },
- {
- "cell_type": "code",
- "source": "SELECT * FROM potaters",
- "metadata": {
- "trusted": true
- },
- "execution_count": 21,
- "outputs": [
- {
- "execution_count": 21,
- "output_type": "execute_result",
- "data": {
- "text/html": "\n\nproduction | \n
\n\n7 | \n
\n
",
- "text/plain": "+------------+\n| production |\n+------------+\n| 7 |\n+------------+"
- },
- "metadata": {}
- }
- ]
- },
- {
- "cell_type": "markdown",
- "source": "The original database is lost:",
- "metadata": {}
- },
- {
- "cell_type": "code",
- "source": "SELECT Name, Level, Hitpoints FROM players;",
- "metadata": {
- "trusted": true
- },
- "execution_count": 23,
- "outputs": [
- {
- "ename": "Error",
- "evalue": "no such table: players",
- "traceback": [
- "Error: no such table: players"
- ],
- "output_type": "error"
- }
- ]
- }
- ]
-}
\ No newline at end of file