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🎉 web editor

This commit is contained in:
DrMaxNix 2022-10-05 19:18:32 +02:00
parent 219bb6356f
commit 2e2b801ce3
17 changed files with 5424 additions and 178 deletions

70
dev/debugger.js Normal file
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"use strict";
// CLEAR DEBUGGING FLAGS //
// line occupancy in built js source
let debug_source_line_occupancy = {};
// EMPTY ERROR BUFFER FOR TIME UNTIL HTML IS AVAILABLE //
let javascript_error_buffer = [];
function debug_javascript_error_message(error_event){
// TRANSLATE TO SOURCE FILE'S LINES //
// find source file occupying this line
let source_file = null;
let source_line = 0;
for(var one_source_file in debug_source_line_occupancy){
let occupancy = debug_source_line_occupancy[one_source_file];
if(error_event.lineno >= occupancy.start && (occupancy.end === undefined || error_event.lineno <= occupancy.end)){
// remember source file name
source_file = one_source_file;
// translate compiled line to source file line
source_line = error_event.lineno - debug_source_line_occupancy[source_file].start + 1;
// stop searching
break;
}
}
// OUTPUT MESSAGE //
// build line info
let line_info_string;
if(source_file !== null){
line_info_string = source_file + " line " + source_line;
} else {
line_info_string = "raw source" + " line " + error_event.lineno;
}
// send to callback
my_error_callback("(" + line_info_string + ") " + error_event.message, "javascript");
}
// EMPTY ERROR BUFFER WHEN HTML IS AVAILABLE //
document.addEventListener("DOMContentLoaded", function(){
// print messages
for(var one_error_event of javascript_error_buffer){
debug_javascript_error_message(one_error_event);
}
// disable buffer
javascript_error_buffer = null;
});
window.addEventListener("error", function(error_event){
// OUTPUT //
if(javascript_error_buffer !== null){
// add to buffer
javascript_error_buffer.push(error_event);
} else {
// output directly
debug_javascript_error_message(error_event);
}
// DON'T CANCEL EVENT //
return false;
});

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dev/index.css Normal file
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:root {
--onedark-bg: #21252b;
--onedark-bg-light: #2c313a;
--onedark-white: #c5cad3;
--onedark-gray: #828997;
--onedark-gray-dark: #5c6370;
--onedark-gray-dark-dark: #454b54;
--onedark-red: #e06c75;
--onedark-orange: #d19a66;
--onedark-yellow: #e5c07b;
--onedark-green: #98c379;
--onedark-cyan: #56b6c2;
--onedark-blue: #61afef;
--onedark-purple: #c678dd;
}
html, body {
margin: 0px;
padding: 0px;
overflow: hidden;
}
body {
background-color: var(--onedark-bg);
padding: 2em;
}
span.line {
display: block;
color: var(--onedark-white);
}
span.line.stderr-debug { color: var(--onedark-green); }
span.line.stderr-info { color: var(--onedark-blue); }
span.line.stderr-warning { color: var(--onedark-orange); }
span.line.stderr-error { color: var(--onedark-red); }
span.line.stderr-javascript { color: var(--onedark-purple); }
div.collection {
display: flex;
flex-wrap: wrap;
gap: 2rem;
}
div.collection div.item {
flex-basis: 50%;
flex: 20rem;
height: calc(100vh - 4em);
max-width: 100%;
position: relative;
display: flex;
flex-flow: column nowrap;
margin: 0rem;
padding: 0rem;
}
@media only screen and (max-width: 1200px) {
div.collection div.item {
flex-basis: 100%;
height: auto;
}
}
.button {
align-items: center;
padding: 1rem 1.5rem;
width: fit-content;
color: var(--onedark-white);
background-color: var(--onedark-bg-light);
}
.button:not(.one-line) {
display: inline-flex;
margin: 1rem 1rem 0rem 0rem;
}
.button.one-line {
display: flex;
margin: 0rem 0rem 1rem 0rem;
}
.button:hover {
cursor: pointer;
background-color: var(--onedark-gray-dark-dark);
}
.button .text {
display: inline-flex;
flex-flow: column;
margin-left: 1rem;
}
.button img.icon {
height: 1.5rem;
}
.button .extra {
color: var(--onedark-gray);
}
div.collection div.item.editor > div.prism-live {
height: 100%;
}
div.collection div.item.console div.controls {
padding-bottom: 1rem;
}
#console {
margin: 0px;
padding: 1rem;
overflow: auto;
font-size: 1rem;
height: 100%;
overflow: auto;
background-color: var(--onedark-bg-light);
}

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"use strict";
let my_output_callback = function(text){
let line_list = text.split("\n");
for(let one_line of line_list){
let span_one_line = document.createElement("span");
span_one_line.classList.add("line");
span_one_line.textContent = one_line;
document.getElementById("console").appendChild(span_one_line);
document.getElementById("console").scrollTop = document.getElementById("console").scrollHeight;
}
}
let my_error_callback = function(text, type){
let span_one_line = document.createElement("span");
span_one_line.classList.add("line", "stderr-" + type);
span_one_line.textContent = text + "\n";
document.getElementById("console").appendChild(span_one_line);
document.getElementById("console").scrollTop = document.getElementById("console").scrollHeight;
}
let juicescript = new Juicescript({
callback: {
stdout: my_output_callback,
stderr: my_error_callback
}
});
function button_run(){
// clear console
document.getElementById("console").innerHTML = "";
// get source code from editor
let juice_program = document.getElementById("editor").value;
// parse source code
/**/const parse_start = performance.now();
let parse_success = juicescript.parse(juice_program);
/**/const parse_end = performance.now();
/**/juicescript.io.stderr.info("Parsing took " + (parse_end - parse_start) + "ms");
// execute program
if(parse_success){
/**/const run_start = performance.now();
juicescript.run();
/**/const run_end = performance.now();
/**/juicescript.io.stderr.info("Running took " + (run_end - run_start) + "ms");
} else {
juicescript.io.stderr.info("Not executing program due to parse error");
}
}

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@ -5,126 +5,18 @@
<link rel="shortcut icon" href="/icon.png">
<title>Juicescript dev env</title>
<style>
:root {
--onedark-bg: #21252b;
--onedark-bg-light: #2c313a;
--onedark-white: #c5cad3;
--onedark-gray: #828997;
--onedark-gray-dark: #5c6370;
--onedark-red: #e06c75;
--onedark-orange: #d19a66;
--onedark-yellow: #e5c07b;
--onedark-green: #98c379;
--onedark-cyan: #56b6c2;
--onedark-blue: #61afef;
--onedark-purple: #c678dd;
}
html, body {
margin: 0px;
padding: 0px;
}
body {
background-color: var(--onedark-bg);
}
div.text-output-container {
height: calc(100vh - 4rem - 4px);
width: calc(100vw - 4rem - 4px);
padding: 2rem;
}
#text-output-area {
height: calc(100% - 2rem);
width: calc(100% - 2rem);
padding: 1rem;
margin: 0px;
overflow: auto;
font-size: 1rem;
background-color: var(--onedark-bg-light);
border: none;
}
span.line {
display: block;
color: var(--onedark-white);
}
span.line.stderr-debug { color: var(--onedark-green); }
span.line.stderr-info { color: var(--onedark-blue); }
span.line.stderr-warning { color: var(--onedark-orange); }
span.line.stderr-error { color: var(--onedark-red); }
span.line.stderr-javascript { color: var(--onedark-purple); }
</style>
<link rel="stylesheet" href="/prism/prism-onedark.css">
<link rel="stylesheet" href="/prism/prism-line-numbers.css">
<link rel="stylesheet" href="/prism/prism-live.css">
<link rel="stylesheet" href="/tabler-icons/tabler-icons.min.css">
<link rel="stylesheet" href="/index.css">
<script type="text/javascript">
// CLEAR DEBUGGING FLAGS //
// line occupancy in built js source
let debug_source_line_occupancy = {};
// EMPTY ERROR BUFFER FOR TIME UNTIL HTML IS AVAILABLE //
let javascript_error_buffer = [];
function debug_javascript_error_message(error_event){
// TRANSLATE TO SOURCE FILE'S LINES //
// find source file occupying this line
let source_file = null;
let source_line = 0;
for(var one_source_file in debug_source_line_occupancy){
let occupancy = debug_source_line_occupancy[one_source_file];
if(error_event.lineno >= occupancy.start && (occupancy.end === undefined || error_event.lineno <= occupancy.end)){
// remember source file name
source_file = one_source_file;
// translate compiled line to source file line
source_line = error_event.lineno - debug_source_line_occupancy[source_file].start + 1;
// stop searching
break;
}
}
// OUTPUT MESSAGE //
// build line info
let line_info_string;
if(source_file !== null){
line_info_string = source_file + " line " + source_line;
} else {
line_info_string = "raw source" + " line " + error_event.lineno;
}
// send to callback
my_error_callback("(" + line_info_string + ") " + error_event.message, "javascript");
}
// EMPTY ERROR BUFFER WHEN HTML IS AVAILABLE //
document.addEventListener("DOMContentLoaded", function(){
// print messages
for(var one_error_event of javascript_error_buffer){
debug_javascript_error_message(one_error_event);
}
// disable buffer
javascript_error_buffer = null;
});
window.addEventListener("error", function(error_event){
// OUTPUT //
if(javascript_error_buffer !== null){
// add to buffer
javascript_error_buffer.push(error_event);
} else {
// output directly
debug_javascript_error_message(error_event);
}
// DON'T CANCEL EVENT //
return false;
});
<?php
require("debugger.js");
echo("\n");
?>
</script>
<script type="text/javascript">
@ -160,69 +52,35 @@
</script>
<script type="text/javascript">
let juice_program = <?php echo(json_encode(file_get_contents("juice-program.jce"))); ?>;
</script>
<script type="text/javascript">
let my_output_callback = function(text){
let line_list = text.split("\n");
for(let one_line of line_list){
let span_one_line = document.createElement("span");
span_one_line.classList.add("line");
span_one_line.textContent = one_line;
document.getElementById("text-output-area").appendChild(span_one_line);
document.getElementById("text-output-area").scrollTop = document.getElementById("text-output-area").scrollHeight;
}
}
let my_error_callback = function(text, type){
let span_one_line = document.createElement("span");
span_one_line.classList.add("line", "stderr-" + type);
span_one_line.textContent = text + "\n";
document.getElementById("text-output-area").appendChild(span_one_line);
document.getElementById("text-output-area").scrollTop = document.getElementById("text-output-area").scrollHeight;
}
let juicescript = new Juicescript({
callback: {
stdout: my_output_callback,
stderr: my_error_callback
}
});
document.addEventListener("DOMContentLoaded", function(){
// handle missing source file
if(juice_program === false){
juicescript.io.stderr.error("No source file found! Add one at 'dev/juice-program.jce'");
return;
}
// parse source code
/**/const parse_start = performance.now();
let parse_success = juicescript.parse(juice_program);
/**/const parse_end = performance.now();
/**/juicescript.io.stderr.info("Parsing took " + (parse_end - parse_start) + "ms");
// execute program
if(parse_success){
/**/const run_start = performance.now();
juicescript.run();
/**/const run_end = performance.now();
/**/juicescript.io.stderr.info("Running took " + (run_end - run_start) + "ms");
} else {
juicescript.io.stderr.info("Not executing program due to parse error");
}
});
<?php
echo("debug_source_line_occupancy[\"index.js\"] = {start: new Error().lineNumber};");
require("index.js");
echo("\n");
echo("debug_source_line_occupancy[\"index.js\"].end = new Error().lineNumber;");
?>
</script>
</head>
<body>
<div class="text-output-container">
<pre id="text-output-area"></pre>
<div class="collection">
<div class="item editor">
<textarea id="editor" class="prism-live line-numbers language-ruby fill"></textarea>
</div>
<div class="item console">
<div class="button-list controls">
<a onclick="button_run()" class="button one-line">
<span class="icon ti ti-player-play"></span>
<span class="text">Run</span>
</a>
</div>
<pre id="console"></pre>
</div>
</div>
<script src="/prism/bliss.shy.min.js"></script>
<script src="/prism/prism-juicescript.js"></script>
<script src="/prism/prism-line-numbers.js"></script>
<script src="/prism/prism-live.js"></script>
</body>
</html>

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pre[class*="language-"].line-numbers {
position: relative;
padding-left: 3.8em;
counter-reset: linenumber;
}
pre[class*="language-"].line-numbers > code {
position: relative;
white-space: inherit;
}
.line-numbers .line-numbers-rows {
position: absolute;
pointer-events: none;
top: 0;
font-size: 100%;
left: -3.8em;
width: 3em; /* works for line-numbers below 1000 lines */
letter-spacing: -1px;
border-right: 1px solid #999;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
.line-numbers-rows > span {
display: block;
counter-increment: linenumber;
}
.line-numbers-rows > span:before {
content: counter(linenumber);
color: #999;
display: block;
padding-right: 0.8em;
text-align: right;
}

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(function () {
if (typeof Prism === 'undefined' || typeof document === 'undefined') {
return;
}
/**
* Plugin name which is used as a class name for <pre> which is activating the plugin
*
* @type {string}
*/
var PLUGIN_NAME = 'line-numbers';
/**
* Regular expression used for determining line breaks
*
* @type {RegExp}
*/
var NEW_LINE_EXP = /\n(?!$)/g;
/**
* Global exports
*/
var config = Prism.plugins.lineNumbers = {
/**
* Get node for provided line number
*
* @param {Element} element pre element
* @param {number} number line number
* @returns {Element|undefined}
*/
getLine: function (element, number) {
if (element.tagName !== 'PRE' || !element.classList.contains(PLUGIN_NAME)) {
return;
}
var lineNumberRows = element.querySelector('.line-numbers-rows');
if (!lineNumberRows) {
return;
}
var lineNumberStart = parseInt(element.getAttribute('data-start'), 10) || 1;
var lineNumberEnd = lineNumberStart + (lineNumberRows.children.length - 1);
if (number < lineNumberStart) {
number = lineNumberStart;
}
if (number > lineNumberEnd) {
number = lineNumberEnd;
}
var lineIndex = number - lineNumberStart;
return lineNumberRows.children[lineIndex];
},
/**
* Resizes the line numbers of the given element.
*
* This function will not add line numbers. It will only resize existing ones.
*
* @param {HTMLElement} element A `<pre>` element with line numbers.
* @returns {void}
*/
resize: function (element) {
resizeElements([element]);
},
/**
* Whether the plugin can assume that the units font sizes and margins are not depended on the size of
* the current viewport.
*
* Setting this to `true` will allow the plugin to do certain optimizations for better performance.
*
* Set this to `false` if you use any of the following CSS units: `vh`, `vw`, `vmin`, `vmax`.
*
* @type {boolean}
*/
assumeViewportIndependence: true
};
/**
* Resizes the given elements.
*
* @param {HTMLElement[]} elements
*/
function resizeElements(elements) {
elements = elements.filter(function (e) {
var codeStyles = getStyles(e);
var whiteSpace = codeStyles['white-space'];
return whiteSpace === 'pre-wrap' || whiteSpace === 'pre-line';
});
if (elements.length == 0) {
return;
}
var infos = elements.map(function (element) {
var codeElement = element.querySelector('code');
var lineNumbersWrapper = element.querySelector('.line-numbers-rows');
if (!codeElement || !lineNumbersWrapper) {
return undefined;
}
/** @type {HTMLElement} */
var lineNumberSizer = element.querySelector('.line-numbers-sizer');
var codeLines = codeElement.textContent.split(NEW_LINE_EXP);
if (!lineNumberSizer) {
lineNumberSizer = document.createElement('span');
lineNumberSizer.className = 'line-numbers-sizer';
codeElement.appendChild(lineNumberSizer);
}
lineNumberSizer.innerHTML = '0';
lineNumberSizer.style.display = 'block';
var oneLinerHeight = lineNumberSizer.getBoundingClientRect().height;
lineNumberSizer.innerHTML = '';
return {
element: element,
lines: codeLines,
lineHeights: [],
oneLinerHeight: oneLinerHeight,
sizer: lineNumberSizer,
};
}).filter(Boolean);
infos.forEach(function (info) {
var lineNumberSizer = info.sizer;
var lines = info.lines;
var lineHeights = info.lineHeights;
var oneLinerHeight = info.oneLinerHeight;
lineHeights[lines.length - 1] = undefined;
lines.forEach(function (line, index) {
if (line && line.length > 1) {
var e = lineNumberSizer.appendChild(document.createElement('span'));
e.style.display = 'block';
e.textContent = line;
} else {
lineHeights[index] = oneLinerHeight;
}
});
});
infos.forEach(function (info) {
var lineNumberSizer = info.sizer;
var lineHeights = info.lineHeights;
var childIndex = 0;
for (var i = 0; i < lineHeights.length; i++) {
if (lineHeights[i] === undefined) {
lineHeights[i] = lineNumberSizer.children[childIndex++].getBoundingClientRect().height;
}
}
});
infos.forEach(function (info) {
var lineNumberSizer = info.sizer;
var wrapper = info.element.querySelector('.line-numbers-rows');
lineNumberSizer.style.display = 'none';
lineNumberSizer.innerHTML = '';
info.lineHeights.forEach(function (height, lineNumber) {
wrapper.children[lineNumber].style.height = height + 'px';
});
});
}
/**
* Returns style declarations for the element
*
* @param {Element} element
*/
function getStyles(element) {
if (!element) {
return null;
}
return window.getComputedStyle ? getComputedStyle(element) : (element.currentStyle || null);
}
var lastWidth = undefined;
window.addEventListener('resize', function () {
if (config.assumeViewportIndependence && lastWidth === window.innerWidth) {
return;
}
lastWidth = window.innerWidth;
resizeElements(Array.prototype.slice.call(document.querySelectorAll('pre.' + PLUGIN_NAME)));
});
Prism.hooks.add('complete', function (env) {
if (!env.code) {
return;
}
var code = /** @type {Element} */ (env.element);
var pre = /** @type {HTMLElement} */ (code.parentNode);
// works only for <code> wrapped inside <pre> (not inline)
if (!pre || !/pre/i.test(pre.nodeName)) {
return;
}
// Abort if line numbers already exists
if (code.querySelector('.line-numbers-rows')) {
return;
}
// only add line numbers if <code> or one of its ancestors has the `line-numbers` class
if (!Prism.util.isActive(code, PLUGIN_NAME)) {
return;
}
// Remove the class 'line-numbers' from the <code>
code.classList.remove(PLUGIN_NAME);
// Add the class 'line-numbers' to the <pre>
pre.classList.add(PLUGIN_NAME);
var match = env.code.match(NEW_LINE_EXP);
var linesNum = match ? match.length + 1 : 1;
var lineNumbersWrapper;
var lines = new Array(linesNum + 1).join('<span></span>');
lineNumbersWrapper = document.createElement('span');
lineNumbersWrapper.setAttribute('aria-hidden', 'true');
lineNumbersWrapper.className = 'line-numbers-rows';
lineNumbersWrapper.innerHTML = lines;
if (pre.hasAttribute('data-start')) {
pre.style.counterReset = 'linenumber ' + (parseInt(pre.getAttribute('data-start'), 10) - 1);
}
env.element.appendChild(lineNumbersWrapper);
resizeElements([pre]);
Prism.hooks.run('line-numbers', env);
});
Prism.hooks.add('line-numbers', function (env) {
env.plugins = env.plugins || {};
env.plugins.lineNumbers = true;
});
}());

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div.prism-live {
position: relative;
box-sizing: border-box;
display: flex;
flex-flow: column;
}
textarea.prism-live,
pre.prism-live {
padding: .2rem .5rem;
box-sizing: border-box;
margin: 0;
}
textarea.prism-live {
position: absolute;
top: 0;
right: 0;
width: 100%;
height: 100%;
z-index: 1;
color: transparent;
/* color: hsla(0,0%,50%,.4); */
cursor: text;
white-space: pre;
border: 0;
outline: none;
background: transparent;
resize: none;
--selection-background: hsl(320, 80%, 25%);
--selection-color: hsla(0, 0%, 100%, .8);
}
@supports (not (caret-color: black)) and (-webkit-text-fill-color: black) {
textarea.prism-live {
color: inherit;
-webkit-text-fill-color: transparent;
}
}
/* Setting specific colors is needed
* because otherwise Firefox shows blank text */
textarea.prism-live::-moz-selection {
background: var(--selection-background);
color: var(--selection-color);
}
textarea.prism-live::selection {
background: var(--selection-background);
color: var(--selection-color);
}
pre.prism-live {
flex: 1;
position: relative;
pointer-events: none;
overflow: hidden;
max-height: 100%;
--scrollbar-width: 17px;
padding-bottom: var(--scrollbar-width);
padding-right: var(--scrollbar-width);
}
pre.prism-live > code:empty::before {
content: " "
}

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/**
Prism Live: Code editor based on Prism.js
Works best in Chrome. Currently only very basic support in other browsers (no snippets, no shortcuts)
@author Lea Verou
*/
(async function() {
const CURRENT_URL = document.currentScript? new URL(document.currentScript.src) : null;
if (!window.Bliss) {
// Load Bliss if not loaded
console.log("Bliss not loaded. Loading remotely from blissfuljs.com");
let bliss = document.createElement("script");
bliss.src = "https://blissfuljs.com/bliss.shy.min.js";
document.head.appendChild(bliss);
await new Promise(resolve => bliss.onload = resolve);
}
var $ = Bliss, $$ = Bliss.$;
var ready = Promise.resolve();
if (CURRENT_URL) {
// Tiny dynamic loader. Use e.g. ?load=css,markup,javascript to load components
var load = CURRENT_URL.searchParams.get("load");
if (load !== null) {
var files = ["../prism-live.css"];
if (load) {
files.push(...load.split(/,/).map(c => /\./.test(c)? c : `prism-live-${c}.js`));
}
ready = Promise.all(files.map(url => $.load(url, CURRENT_URL)));
}
}
var superKey = navigator.platform.indexOf("Mac") === 0? "metaKey" : "ctrlKey";
var _ = Prism.Live = class PrismLive {
constructor(source) {
this.source = source;
this.sourceType = source.nodeName.toLowerCase();
this.wrapper = $.create({
className: "prism-live",
around: this.source
});
if (this.sourceType === "textarea") {
this.textarea = this.source;
this.code = $.create("code");
this.pre = $.create("pre", {
className: this.textarea.className + " no-whitespace-normalization",
contents: this.code,
before: this.textarea
});
}
else {
this.pre = this.source;
// Normalize once, to fix indentation from markup and then remove normalization
// so we can enter blank lines etc
// Prism.plugins.NormalizeWhitespace.normalize($("code", this.pre), {});
this.pre.classList.add("no-whitespace-normalization");
this.code = $("code", this.pre);
this.textarea = $.create("textarea", {
className: this.pre.className,
value: this.pre.textContent,
after: this.pre
});
}
_.all.set(this.textarea, this);
_.all.set(this.pre, this);
_.all.set(this.code, this);
this.pre.classList.add("prism-live");
this.textarea.classList.add("prism-live");
this.source.classList.add("prism-live-source");
if (self.Incrementable) {
// TODO data-* attribute for modifier
// TODO load dynamically if not present
new Incrementable(this.textarea);
}
$.bind(this.textarea, {
input: evt => this.update(),
keyup: evt => {
if (evt.key == "Enter") { // Enter
// Maintain indent on line breaks
this.insert(this.currentIndent);
this.syncScroll();
}
},
keydown: evt => {
if (evt.key == "Tab" && !evt.altKey) {
// Default is to move focus off the textarea
// this is never desirable in an editor
evt.preventDefault();
if (this.tabstops && this.tabstops.length > 0) {
// We have tabstops to go
this.moveCaret(this.tabstops.shift());
}
else if (this.hasSelection) {
var before = this.beforeCaret("\n");
var outdent = evt.shiftKey;
this.selectionStart -= before.length;
var selection = _.adjustIndentation(this.selection, {
relative: true,
indentation: outdent? -1 : 1
});
this.replace(selection);
if (outdent) {
var indentStart = _.regexp.gm`^${this.indent}`;
var isBeforeIndented = indentStart.test(before);
this.selectionStart += before.length + 1 - (outdent + isBeforeIndented);
}
else { // Indent
var hasLineAbove = before.length == this.selectionStart;
this.selectionStart += before.length + 1 + !hasLineAbove;
}
}
else {
// Nothing selected, expand snippet
var selector = _.match(this.beforeCaret(), /\S*$/);
var snippetExpanded = this.expandSnippet(selector);
if (snippetExpanded) {
requestAnimationFrame(() => $.fire(this.textarea, "input"));
}
else {
this.insert(this.indent);
}
}
}
else if (_.pairs[evt.key]) {
var other = _.pairs[evt.key];
this.wrapSelection({
before: evt.key,
after: other,
outside: true
});
evt.preventDefault();
}
else if (Object.values(_.pairs).includes(evt.key)) {
if (this.selectionStart == this.selectionEnd && this.textarea.value[this.selectionEnd] == evt.key) {
this.selectionStart += 1;
this.selectionEnd += 1;
evt.preventDefault();
}
}
else {
for (let shortcut in _.shortcuts) {
if (_.checkShortcut(shortcut, evt)) {
_.shortcuts[shortcut].call(this, evt);
evt.preventDefault();
}
}
}
},
click: evt => {
var l = this.getLine();
var v = this.value;
var ss = this.selectionStart;
//console.log(ss, v[ss], l, v.slice(l.start, l.end));
},
"click keyup": evt => {
if (!evt.key || evt.key.lastIndexOf("Arrow") > -1) {
// Caret moved
this.tabstops = null;
}
}
});
// this.syncScroll();
this.textarea.addEventListener("scroll", this, {passive: true});
$.bind(window, {
"resize": evt => this.syncStyles()
});
// Copy styles with a delay
requestAnimationFrame(() => {
this.syncStyles();
var sourceCS = getComputedStyle(this.source);
this.pre.style.height = this.source.style.height || sourceCS.getPropertyValue("--height");
this.pre.style.maxHeight = this.source.style.maxHeight || sourceCS.getPropertyValue("--max-height");
this.textarea.spellcheck = this.source.spellcheck || sourceCS.getPropertyValue("--spellcheck");
});
this.update();
this.lang = (this.code.className.match(/lang(?:uage)?-(\w+)/i) || [,])[1];
this.observer = new MutationObserver(r => {
if (document.activeElement !== this.textarea) {
this.textarea.value = this.pre.textContent;
}
});
this.observe();
this.source.dispatchEvent(new CustomEvent("prism-live-init", {bubbles: true, detail: this}));
}
handleEvent(evt) {
if (evt.type === "scroll") {
this.syncScroll();
}
}
observe () {
return this.observer && this.observer.observe(this.pre, {
childList: true,
subtree: true,
characterData: true
});
}
unobserve () {
if (this.observer) {
this.observer.takeRecords();
this.observer.disconnect();
}
}
expandSnippet(text) {
if (!text) {
return false;
}
var context = this.context;
if (text in context.snippets || text in _.snippets) {
// Static Snippets
var expansion = context.snippets[text] || _.snippets[text];
}
else if (context.snippets.custom) {
var expansion = context.snippets.custom.call(this, text);
}
if (expansion) {
// Insert snippet
var stops = [];
var replacement = [];
var str = expansion;
var match;
while (match = _.CARET_INDICATOR.exec(str)) {
stops.push(match.index + 1);
replacement.push(str.slice(0, match.index + match[1].length));
str = str.slice(match.index + match[0].length);
_.CARET_INDICATOR.lastIndex = 0;
}
replacement.push(str);
replacement = replacement.join("");
if (stops.length > 0) {
// make first stop relative to end, all others relative to previous stop
stops[0] -= replacement.length;
}
this.delete(text);
this.insert(replacement, {matchIndentation: true});
this.tabstops = stops;
this.moveCaret(this.tabstops.shift());
}
return !!expansion;
}
get selectionStart() {
return this.textarea.selectionStart;
}
set selectionStart(v) {
this.textarea.selectionStart = v;
}
get selectionEnd() {
return this.textarea.selectionEnd;
}
set selectionEnd(v) {
this.textarea.selectionEnd = v;
}
get hasSelection() {
return this.selectionStart != this.selectionEnd;
}
get selection() {
return this.value.slice(this.selectionStart, this.selectionEnd);
}
get value() {
return this.textarea.value;
}
set value(v) {
this.textarea.value = v;
}
get indent() {
return _.match(this.value, /^[\t ]+/m, _.DEFAULT_INDENT);
}
get currentIndent() {
var before = this.value.slice(0, this.selectionStart-1);
return _.match(before, /^[\t ]*/mg, "", -1);
}
// Current language at caret position
get currentLanguage() {
var node = this.getNode();
node = node? node.parentNode : this.code;
var lang = _.match(node.closest('[class*="language-"]').className, /language-(\w+)/, 1);
return _.aliases[lang] || lang;
}
// Get settings based on current language
get context() {
var lang = this.currentLanguage;
return _.languages[lang] || _.languages.DEFAULT;
}
setSelection(start, end) {
if (start && typeof start === "object" && (start.start || start.end)) {
end = start.end;
start = start.start;
}
let prevStart = this.selectionStart;
let prevEnd = this.selectionEnd;
if (start !== undefined) {
this.selectionStart = start;
}
if (end !== undefined) {
this.selectionEnd = end;
}
// If there is a selection, and it's not the same as the previous selection, fire appropriate select event
if (this.selectionStart !== this.selectionEnd && (prevStart !== this.selectionStart || prevEnd !== this.selectionEnd)) {
this.textarea.dispatchEvent(new Event("select", {bubbles: true}));
}
}
update (force) {
var code = this.value;
// If code ends in newline then browser "conveniently" trims it
// but we want to see the new line we just inserted!
// So we insert a zero-width space, which isn't trimmed
if (/\n$/.test(this.value)) {
code += "\u200b";
}
if (!force && this.code.textContent === code && $(".token", this.code)) {
// Already highlighted
return;
}
this.unobserve();
this.code.textContent = code;
Prism.highlightElement(this.code);
this.observe();
}
syncStyles() {
// Copy pre metrics over to textarea
var cs = getComputedStyle(this.pre);
// Copy styles from <pre> to textarea
this.textarea.style.caretColor = cs.color;
var properties = /^(font|lineHeight)|[tT]abSize/gi;
for (var prop in cs) {
if (cs[prop] && prop in this.textarea.style && properties.test(prop)) {
this.wrapper.style[prop] = cs[prop];
this.textarea.style[prop] = this.pre.style[prop] = "inherit";
}
}
// This is primarily for supporting the line-numbers plugin.
this.textarea.style['padding-left'] = cs['padding-left'];
this.update();
}
syncScroll() {
if (this.pre.clientWidth === 0 && this.pre.clientHeight === 0) {
return;
}
this.pre.scrollTop = this.textarea.scrollTop;
this.pre.scrollLeft = this.textarea.scrollLeft;
}
beforeCaretIndex (until = "") {
return this.value.lastIndexOf(until, this.selectionStart);
}
afterCaretIndex (until = "") {
return this.value.indexOf(until, this.selectionEnd);
}
beforeCaret (until = "") {
var index = this.beforeCaretIndex(until);
if (index === -1 || !until) {
index = 0;
}
return this.value.slice(index, this.selectionStart);
}
getLine(offset = this.selectionStart) {
var value = this.value;
var lf = "\n", cr = "\r";
var start, end, char;
for (var start = this.selectionStart; char = value[start]; start--) {
if (char === lf || char === cr || !start) {
break;
}
}
for (var end = this.selectionStart; char = value[end]; end++) {
if (char === lf || char === cr) {
break;
}
}
return {start, end};
}
afterCaret(until = "") {
var index = this.afterCaretIndex(until);
if (index === -1 || !until) {
index = undefined;
}
return this.value.slice(this.selectionEnd, index);
}
setCaret(pos) {
this.selectionStart = this.selectionEnd = pos;
}
moveCaret(chars) {
if (chars) {
this.setCaret(this.selectionEnd + chars);
}
}
insert(text, {index} = {}) {
if (!text) {
return;
}
this.textarea.focus();
if (index === undefined) {
// No specified index, insert in current caret position
this.replace(text);
}
else {
// Specified index, first move caret there
var start = this.selectionStart;
var end = this.selectionEnd;
this.selectionStart = this.selectionEnd = index;
this.replace(text);
this.setSelection(
start + (index < start? text.length : 0),
end + (index <= end? text.length : 0)
);
}
}
// Replace currently selected text
replace (text) {
var hadSelection = this.hasSelection;
this.insertText(text);
if (hadSelection) {
// By default inserText places the caret at the end, losing any selection
// What we want instead is the replaced text to be selected
this.setSelection({start: this.selectionEnd - text.length});
}
}
// Set text between indexes and restore caret position
set (text, {start, end} = {}) {
var ss = this.selectionStart;
var se = this.selectionEnd;
this.setSelection(start, end);
this.insertText(text);
this.setSelection(ss, se);
}
insertText (text) {
if (!text) {
return;
}
if (_.supportsExecCommand === true) {
document.execCommand("insertText", false, text);
}
else if (_.supportsExecCommand === undefined) {
// We still don't know if document.execCommand("insertText") is supported
let value = this.value;
document.execCommand("insertText", false, text);
_.supportsExecCommand = value !== this.value;
}
if (_.supportsExecCommand === false) {
this.textarea.setRangeText(text, this.selectionStart, this.selectionEnd, "end");
requestAnimationFrame(() => this.update());
}
return _.supportsExecCommand;
}
/**
* Wrap text with strings
* @param before {String} The text to insert before
* @param after {String} The text to insert after
* @param start {Number} Character offset
* @param end {Number} Character offset
*/
wrap ({before, after, start = this.selectionStart, end = this.selectionEnd} = {}) {
var ss = this.selectionStart;
var se = this.selectionEnd;
var between = this.value.slice(start, end);
this.set(before + between + after, {start, end});
if (ss > start) {
ss += before.length;
}
if (se > start) {
se += before.length;
}
if (ss > end) {
ss += after.length;
}
if (se > end) {
se += after.length;
}
this.setSelection(ss, se);
}
wrapSelection (o = {}) {
var hadSelection = this.hasSelection;
this.replace(o.before + this.selection + o.after);
if (hadSelection) {
if (o.outside) {
// Do not include new text in selection
this.selectionStart += o.before.length;
this.selectionEnd -= o.after.length;
}
}
else {
this.moveCaret(-o.after.length);
}
}
toggleComment() {
var comments = this.context.comments;
// Are we inside a comment?
var node = this.getNode();
var commentNode = node.parentNode.closest(".token.comment");
if (commentNode) {
// Remove comment
var start = this.getOffset(commentNode);
var commentText = commentNode.textContent;
if (comments.singleline && commentText.indexOf(comments.singleline) === 0) {
var end = start + commentText.length;
this.set(this.value.slice(start + comments.singleline.length, end), {start, end});
this.moveCaret(-comments.singleline.length);
}
else {
comments = comments.multiline || comments;
var end = start + commentText.length - comments[1].length;
this.set(this.value.slice(start + comments[0].length, end), {start, end: end + comments[1].length});
}
}
else {
// Not inside comment, add
if (this.hasSelection) {
comments = comments.multiline || comments;
this.wrapSelection({
before: comments[0],
after: comments[1]
});
}
else {
// No selection, wrap line
// FIXME *inside indent*
comments = comments.singleline? [comments.singleline, ""] : comments.multiline || comments;
end = this.afterCaretIndex("\n");
this.wrap({
before: comments[0],
after: comments[1],
start: this.beforeCaretIndex("\n") + 1,
end: end < 0? this.value.length : end
});
}
}
}
duplicateContent () {
var before = this.beforeCaret("\n");
var after = this.afterCaret("\n");
var text = before + this.selection + after;
this.insert(text, {index: this.selectionStart - before.length});
}
delete (characters, {forward, pos} = {}) {
var i = characters = characters > 0? characters : (characters + "").length;
if (pos) {
var selectionStart = this.selectionStart;
this.selectionStart = pos;
this.selectionEnd = pos + this.selectionEnd - selectionStart;
}
while (i--) {
document.execCommand(forward? "forwardDelete" : "delete");
}
if (pos) {
// Restore caret
this.selectionStart = selectionStart - characters;
this.selectionEnd = this.selectionEnd - pos + this.selectionStart;
}
}
/**
* Get the text node at a given chracter offset
*/
getNode(offset = this.selectionStart, container = this.code) {
var node, sum = 0;
var walk = document.createTreeWalker(container, NodeFilter.SHOW_TEXT);
while (node = walk.nextNode()) {
sum += node.data.length;
if (sum >= offset) {
return node;
}
}
// if here, offset is larger than maximum
return null;
}
/**
* Get the character offset of a given node in the highlighted source
*/
getOffset(node) {
var range = document.createRange();
range.selectNodeContents(this.code);
range.setEnd(node, 0);
return range.toString().length;
}
// Utility method to get regex matches
static match(str, regex, def, index = 0) {
if (typeof def === "number" && arguments.length === 3) {
index = def;
def = undefined;
}
var match = str.match(regex);
if (index < 0) {
index = match.length + index;
}
return match? match[index] : def;
}
static checkShortcut(shortcut, evt) {
return shortcut.trim().split(/\s*\+\s*/).every(key => {
switch (key) {
case "Cmd": return evt[superKey];
case "Ctrl": return evt.ctrlKey;
case "Shift": return evt.shiftKey;
case "Alt": return evt.altKey;
default: return evt.key === key;
}
});
}
static registerLanguage(name, context, parent = _.languages.DEFAULT) {
Object.setPrototypeOf(context, parent);
return _.languages[name] = context;
}
static matchIndentation(text, currentIndent) {
// FIXME this assumes that text has no indentation of its own
// to make this more generally useful beyond snippets, we should first
// strip text's own indentation.
text = text.replace(/\r?\n/g, "$&" + currentIndent);
}
static adjustIndentation(text, {indentation, relative = true, indent = _.DEFAULT_INDENT}) {
if (!relative) {
// First strip min indentation
var minIndent = text.match(_.regexp.gm`^(${indent})+`).sort()[0];
if (minIndent) {
text.replace(_.regexp.gm`^${minIndent}`, "");
}
}
if (indentation < 0) {
return text.replace(_.regexp.gm`^${indent}`, "");
}
else if (indentation > 0) { // Indent
return text.replace(/^/gm, indent);
}
}
static create (source, ...args) {
let ret = _.all.get(source);
if (!ret) {
ret = new _(source);
}
return ret;
}
};
// Static properties
Object.assign(_, {
all: new WeakMap(),
ready,
DEFAULT_INDENT: "\t",
CARET_INDICATOR: /(^|[^\\])\$(\d+)/g,
snippets: {
"test": "Snippets work!",
},
pairs: {
"(": ")",
"[": "]",
"{": "}",
'"': '"',
"'": "'",
"`": "`"
},
shortcuts: {
"Cmd + /": function() {
this.toggleComment();
},
"Ctrl + Shift + D": function() {
this.duplicateContent();
}
},
languages: {
DEFAULT: {
comments: {
multiline: ["/*", "*/"]
},
snippets: {}
}
},
// Map of Prism language ids and their canonical name
aliases: (() => {
var ret = {};
var canonical = new WeakMap(Object.entries(Prism.languages).map(x => x.reverse()).reverse());
for (var id in Prism.languages) {
var grammar = Prism.languages[id];
if (typeof grammar !== "function") {
ret[id] = canonical.get(grammar);
}
}
return ret;
})(),
regexp: (() => {
var escape = s => s.replace(/[-\/\\^$*+?.()|[\]{}]/g, "\\$&");
var _regexp = (flags, strings, ...values) => {
var pattern = strings[0] + values.map((v, i) => escape(v) + strings[i+1]).join("");
return RegExp(pattern, flags);
};
var cache = {};
return new Proxy(_regexp.bind(_, ""), {
get: (t, property) => {
return t[property] || cache[property]
|| (cache[property] = _regexp.bind(_, property));
}
});
})()
});
_.supportsExecCommand = document.execCommand? undefined : false;
$.ready().then(() => {
$$(":not(.prism-live) > textarea.prism-live, :not(.prism-live) > pre.prism-live").forEach(source => _.create(source));
});
})();

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code[class*="language-"],
pre[class*="language-"] {
color: var(--onedark-white);
background: none;
font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
font-size: 1em;
text-align: left;
white-space: pre;
word-spacing: normal;
word-break: normal;
word-wrap: normal;
line-height: 1.5;
-moz-tab-size: 4;
-o-tab-size: 4;
tab-size: 4;
-webkit-hyphens: none;
-moz-hyphens: none;
-ms-hyphens: none;
hyphens: none;
}
/* Code blocks */
pre[class*="language-"] {
padding: 1em;
margin: .5em 0;
overflow: auto;
}
:not(pre) > code[class*="language-"],
pre[class*="language-"] {
background: var(--onedark-bg-light);
}
/* Inline code */
:not(pre) > code[class*="language-"] {
padding: .1em;
border-radius: .3em;
white-space: normal;
}
.token.comment,
.token.block-comment,
.token.prolog,
.token.doctype,
.token.cdata {
color: var(--onedark-gray);
}
.token.punctuation {
color: var(--onedark-white);
}
.token.tag,
.token.attr-name,
.token.namespace,
.token.deleted {
color: #F00;
}
.token.function-name {
color: #F00;
}
.token.boolean,
.token.number,
.token.function {
color: var(--onedark-orange);
}
.token.property,
.token.class-name,
.token.constant,
.token.symbol {
color: var(--onedark-yellow);
}
.token.selector,
.token.important,
.token.atrule,
.token.keyword,
.token.builtin {
color: var(--onedark-purple);
}
.token.string,
.token.char,
.token.attr-value,
.token.regex {
color: var(--onedark-green);
}
.token.variable {
color: var(--onedark-red);
}
.token.operator,
.token.entity,
.token.url {
color: var(--onedark-purple);
}
.token.important,
.token.bold {
font-weight: bold;
}
.token.italic {
font-style: italic;
}
.token.entity {
cursor: help;
}
.token.inserted {
color: green;
}

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