update
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46c974f7ca
commit
2dd0775272
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import Prism from "prismjs";
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import "prismjs/plugins/custom-class/prism-custom-class";
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Prism.plugins.customClass.map({ number: "prism-number", tag: "prism-tag" });
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// codeInput
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// by WebCoder49
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// Based on a CSS-Tricks Post
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// Needs Prism.js
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var codeInput = {
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update: function(text, code_input) {
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code_input.setAttribute("value", text);
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let result_element = code_input.getElementsByClassName("code-input_highlighting-content")[0];
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// Handle final newlines (see article)
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if(text[text.length-1] == "\n") {
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text += " ";
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}
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// Update code
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result_element.innerHTML = text.replace(new RegExp("&", "g"), "&").replace(new RegExp("<", "g"), "<"); /* Global RegExp */
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// Syntax Highlight
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Prism.highlightElement(result_element);
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},
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sync_scroll: function(element, code_input) {
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/* Scroll result to scroll coords of event - sync with textarea */
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let result_element = code_input.getElementsByClassName("code-input_highlighting")[0];
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// Get and set x and y
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result_element.scrollTop = element.scrollTop;
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result_element.scrollLeft = element.scrollLeft;
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},
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check_tab: function(element, event) {
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let code = element.value;
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if(event.key == "Tab") {
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/* Tab key pressed */
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event.preventDefault(); // stop normal
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let before_tab = code.slice(0, element.selectionStart); // text before tab
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let after_tab = code.slice(element.selectionEnd, element.value.length); // text after tab
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let cursor_pos = element.selectionEnd + 1; // where cursor moves after tab - moving forward by 1 char to after tab
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element.value = before_tab + "\t" + after_tab; // add tab char
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// move cursor
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element.selectionStart = cursor_pos;
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element.selectionEnd = cursor_pos;
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}
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}
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}
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window.codeInput = codeInput
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class CodeInput extends HTMLElement { // Create code input element
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constructor() {
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super(); // Element
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}
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connectedCallback() {
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// Added to document
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/* Defaults */
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let lang = this.getAttribute("lang") || "HTML";
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let placeholder = this.getAttribute("placeholder") || "Enter " + this.lang + " Source Code";
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let value = this.getAttribute("value") || this.innerHTML || "";
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this.innerHTML = ""; // Clear Content
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/* Create Textarea */
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let textarea = document.createElement("textarea");
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textarea.placeholder = placeholder;
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textarea.value = value;
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textarea.className = "code-input_editing";
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textarea.setAttribute("spellcheck", "false");
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if(this.getAttribute("name")) {
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textarea.setAttribute("name", this.getAttribute("name")); // for use in forms
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this.removeAttribute("name");
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}
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textarea.setAttribute("oninput", "codeInput.update(this.value, this.parentElement); codeInput.sync_scroll(this, this.parentElement);");
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textarea.setAttribute("onscroll", "codeInput.sync_scroll(this, this.parentElement);");
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textarea.setAttribute("onkeydown", "codeInput.check_tab(this, event);");
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this.append(textarea);
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/* Create pre code */
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let code = document.createElement("code");
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code.className = "code-input_highlighting-content language-" + lang; // Language for Prism.js
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code.innerText = value;
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let pre = document.createElement("pre");
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pre.className = "code-input_highlighting";
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pre.setAttribute("aria-hidden", "true"); // Hide for screen readers
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pre.append(code);
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this.append(pre);
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/* Add code from value attribute - useful for loading from backend */
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let text = this.value;
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let result_element = code
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// Handle final newlines (see article)
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// if(text[text.length-1] == "\n") {
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// text += " ";
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// }
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// Update code
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result_element.innerHTML = text.replace(new RegExp("&", "g"), "&").replace(new RegExp("<", "g"), "<"); /* Global RegExp */
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// Syntax Highlight
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Prism.highlightElement(result_element);
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}
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static get observedAttributes() {
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return ["value", "placeholder"]; // Attributes to monitor
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}
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attributeChangedCallback(name, oldValue, newValue) {
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let textarea = this.getElementsByClassName("code-input_editing")[0];
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let result_element = this.getElementsByClassName("code-input_highlighting-content")[0];
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switch(name) {
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case "value":
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// Handle final newlines (see article)
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// if(text[text.length-1] == "\n") {
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// text += " ";
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// }
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// Update code
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result_element.innerHTML = text.replace(new RegExp("&", "g"), "&").replace(new RegExp("<", "g"), "<"); /* Global RegExp */
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// Syntax Highlight
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Prism.highlightElement(result_element);
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break;
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case "placeholder":
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textarea.placeholder = oldValue;
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break;
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}
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}
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}
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customElements.define("code-input", CodeInput); // Set tag
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textarea {
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border: none;
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overflow: auto;
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outline: none;
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-webkit-box-shadow: none;
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-moz-box-shadow: none;
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box-shadow: none;
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resize: none; /*remove the resize handle on the bottom right*/
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}
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.content .tag, .content .number {
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display: inline;
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padding: inherit;
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font-size: inherit;
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line-height: inherit;
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text-align: inherit;
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vertical-align: inherit;
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border-radius: inherit;
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font-weight: inherit;
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white-space: inherit;
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background: inherit;
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margin: inherit;
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}
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/* Code-Input Compability */
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/* By WebCoder49 */
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/* First Published on CSS-Tricks.com */
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code-input {
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/* Allow other elems to be inside */
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position: relative;
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top: 0;
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left: 0;
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display: block;
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}
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.code-input_editing, .code-input_highlighting {
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/* Both elements need the same text and space styling so they are directly on top of each other */
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margin: 10px!important;
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padding: 10px!important;
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border: 0;
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width: calc(100% - 32px)!important;
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height: calc(100% - 32px)!important;
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}
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.code-input_editing, .code-input_highlighting, .code-input_highlighting * {
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/* Also add text styles to highlighing tokens */
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font-size: 15pt!important;
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font-family: monospace;
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line-height: 20pt!important;
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tab-size: 2!important;
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}
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.code-input_editing, .code-input_highlighting {
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/* In the same place */
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position: absolute;
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top: 0;
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left: 0;
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}
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/* Move the textarea in front of the result */
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.code-input_editing {
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z-index: 1;
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}
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.code-input_highlighting {
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z-index: 0;
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}
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/* Make textarea almost completely transparent */
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.code-input_editing {
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color: transparent;
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background: transparent;
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caret-color: white; /* Or choose your favourite color */
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}
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/* Can be scrolled */
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.code-input_editing, .code-input_highlighting {
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overflow: auto;
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white-space: nowrap; /* Allows textarea to scroll horizontally */
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}
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/* No resize on textarea */
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.code-input_editing {
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resize: none;
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}
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@ -0,0 +1,134 @@
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/* PrismJS 1.23.0
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https://prismjs.com/download.html#themes=prism-funky&languages=markup */
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/**
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* prism.js Funky theme
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* Based on “Polyfilling the gaps” talk slides http://lea.verou.me/polyfilling-the-gaps/
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* @author Lea Verou
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*/
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code[class*="language-"],
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pre[class*="language-"] {
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font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
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font-size: 1em;
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text-align: left;
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white-space: pre;
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word-spacing: normal;
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word-break: normal;
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word-wrap: normal;
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line-height: 1.5;
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-moz-tab-size: 4;
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-o-tab-size: 4;
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tab-size: 4;
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-webkit-hyphens: none;
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-moz-hyphens: none;
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-ms-hyphens: none;
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hyphens: none;
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}
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/* Code blocks */
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pre[class*="language-"] {
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padding: .4em .8em;
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margin: .5em 0;
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overflow: auto;
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/* background: url('data:image/svg+xml;charset=utf-8,<svg%20version%3D"1.1"%20xmlns%3D"http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg"%20width%3D"100"%20height%3D"100"%20fill%3D"rgba(0%2C0%2C0%2C.2)">%0D%0A<polygon%20points%3D"0%2C50%2050%2C0%200%2C0"%20%2F>%0D%0A<polygon%20points%3D"0%2C100%2050%2C100%20100%2C50%20100%2C0"%20%2F>%0D%0A<%2Fsvg>');
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background-size: 1em 1em; - WebCoder49*/
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background: black; /* - WebCoder49 */
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}
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code[class*="language-"] {
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background: black;
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color: white;
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box-shadow: -.3em 0 0 .3em black, .3em 0 0 .3em black;
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}
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/* Inline code */
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:not(pre) > code[class*="language-"] {
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padding: .2em;
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border-radius: .3em;
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box-shadow: none;
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white-space: normal;
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}
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.token.comment,
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.token.prolog,
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.token.doctype,
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.token.cdata {
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color: #aaa;
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}
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.token.punctuation {
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color: #999;
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}
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.token.namespace {
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opacity: .7;
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}
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.token.property,
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.token.prism-tag,
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.token.boolean,
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.token.prism-number,
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.token.constant,
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.token.symbol {
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color: #0cf;
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}
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.token.selector,
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.token.attr-name,
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.token.string,
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.token.char,
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.token.builtin {
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color: yellow;
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}
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.token.operator,
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.token.entity,
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.token.url,
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.language-css .token.string,
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.token.variable,
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.token.inserted {
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color: yellowgreen;
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}
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.token.atrule,
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.token.attr-value,
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.token.keyword {
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color: deeppink;
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}
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.token.regex,
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.token.important {
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color: orange;
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}
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.token.important,
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.token.bold {
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font-weight: bold;
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}
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.token.italic {
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font-style: italic;
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}
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.token.entity {
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cursor: help;
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}
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.token.deleted {
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color: red;
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}
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/* Plugin styles: Diff Highlight */
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pre.diff-highlight.diff-highlight > code .token.deleted:not(.prefix),
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pre > code.diff-highlight.diff-highlight .token.deleted:not(.prefix) {
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background-color: rgba(255, 0, 0, .3);
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display: inline;
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}
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pre.diff-highlight.diff-highlight > code .token.inserted:not(.prefix),
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pre > code.diff-highlight.diff-highlight .token.inserted:not(.prefix) {
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background-color: rgba(0, 255, 128, .3);
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display: inline;
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}
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14
src/tmp.css
14
src/tmp.css
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@ -3,15 +3,15 @@
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/* First Published on CSS-Tricks.com */
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textarea {
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border: none;
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overflow: auto;
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outline: none;
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border: none;
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overflow: auto;
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outline: none;
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-webkit-box-shadow: none;
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-moz-box-shadow: none;
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box-shadow: none;
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-webkit-box-shadow: none;
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-moz-box-shadow: none;
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box-shadow: none;
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resize: none; /*remove the resize handle on the bottom right*/
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resize: none; /*remove the resize handle on the bottom right*/
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}
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.content .tag, .content .number {
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display: inline;
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