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MediaWiki:Gadget-DotsSyntaxHighlighter.js
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/* Based on https://www.mediawiki.org/wiki/User:Remember_the_dot/Syntax_highlighter.js */ /* https://www.mediawiki.org/wiki/User:NicoV/Syntax_highlighter.js */ /* This file may be used under the terms of any of the following licenses, as well as any later version of the same licenses: GNU General Public License 2.0 <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html> Creative Commons Attribution-ShareAlike 3.0 Unported License <https://creativecommons.org/licenses/by-sa/3.0/> GNU Free Documentation License 1.2 <https://www.gnu.org/licenses/old-licenses/fdl-1.2.html> */ mw.loader.using("jquery.client", function() { "use strict"; var wpTextbox0; var wpTextbox1; var syntaxStyleTextNode; var lastText; var maxSpanNumber = -1; var highlightSyntaxIfNeededIntervalID; var attributeObserver; var parentObserver; var wgUrlProtocols = mw.config.get("wgUrlProtocols"); var entityRegexBase = "&(?:(?:n(?:bsp|dash)|m(?:dash|inus)|lt|e[mn]sp|thinsp|amp|quot|gt|shy|zwn?j|lrm|rlm|Alpha|Beta|Epsilon|Zeta|Eta|Iota|Kappa|[Mm]u|micro|Nu|[Oo]micron|[Rr]ho|Tau|Upsilon|Chi)|#x[0-9a-fA-F]+);\n*"; var breakerRegexBase = "\\[(?:\\[|(?:" + wgUrlProtocols + "))|\\{(?:\\{\\{?|\\|)|<(?:[:A-Z_a-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD][:\\w\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD-\\.\u00B7\u0300-\u036F\u203F-\u203F-\u2040]*(?=/?>| |\n)|!--[^]*?-->\n*)|(?:" + wgUrlProtocols.replace("|\\/\\/", "") + ")[^\\s\"<>[\\]{-}]*[^\\s\",\\.:;<>[\\]{-}]\n*|^(?:=|[*#:;]+\n*|-{4,}\n*)|\\\\'\\\\'(?:\\\\')?|~{3,5}\n*|" + entityRegexBase; function breakerRegexWithPrefix(prefix) { return new RegExp("(" + prefix + ")\n*|" + breakerRegexBase, "gm"); } function nowikiTagBreakerRegex(tagName) { return new RegExp("(</" + tagName + ">)\n*|" + entityRegexBase, "gm"); } var defaultBreakerRegex = new RegExp(breakerRegexBase, "gm"); var wikilinkBreakerRegex = breakerRegexWithPrefix("]][a-zA-Z]*"); var namedExternalLinkBreakerRegex = breakerRegexWithPrefix("]"); var parameterBreakerRegex = breakerRegexWithPrefix("}}}"); var templateBreakerRegex = breakerRegexWithPrefix("}}"); var tableBreakerRegex = breakerRegexWithPrefix("\\|}"); var headingBreakerRegex = breakerRegexWithPrefix("\n"); var tagBreakerRegexCache = {}; var nowikiTagBreakerRegexCache = {}; function highlightSyntax() { lastText = wpTextbox1.value; var text = lastText.replace(/['\\]/g, "\\$&") + "\n"; var i = 0; var css = ""; var spanNumber = 0; var lastColor; var before = true; function writeText(text, color) { if (color != lastColor) { css += "'}#s" + spanNumber; if (before) { css += ":before{"; before = false; } else { css += ":after{"; before = true; ++spanNumber; } if (color) { css += "background-color:" + color + ";"; } css += "content:'"; lastColor = color; } css += text; } function highlightBlock(color, breakerRegex, assumedBold, assumedItalic) { var match; for (breakerRegex.lastIndex = i; match = breakerRegex.exec(text); breakerRegex.lastIndex = i) { if (match[1]) { writeText(text.substring(i, breakerRegex.lastIndex), color); i = breakerRegex.lastIndex; return; } var endIndexOfLastColor = breakerRegex.lastIndex - match[0].length; if (i < endIndexOfLastColor) { writeText(text.substring(i, endIndexOfLastColor), color); } i = breakerRegex.lastIndex; switch (match[0].charAt(0)) { case "[": if (match[0].charAt(1) == "[") { writeText("[[", syntaxHighlighterConfig.wikilinkColor || color); highlightBlock(syntaxHighlighterConfig.wikilinkColor || color, wikilinkBreakerRegex); } else { writeText(match[0], syntaxHighlighterConfig.externalLinkColor || color); highlightBlock(syntaxHighlighterConfig.externalLinkColor || color, namedExternalLinkBreakerRegex); } break; case "{": if (match[0].charAt(1) == "{") { if (match[0].length == 3) { writeText("{{{", syntaxHighlighterConfig.parameterColor || color); highlightBlock(syntaxHighlighterConfig.parameterColor || color, parameterBreakerRegex); } else { writeText("{{", syntaxHighlighterConfig.templateColor || color); highlightBlock(syntaxHighlighterConfig.templateColor || color, templateBreakerRegex); } } else { writeText("{|", syntaxHighlighterConfig.tableColor || color); highlightBlock(syntaxHighlighterConfig.tableColor || color, tableBreakerRegex); } break; case "<": if (match[0].charAt(1) == "!") { writeText(match[0], syntaxHighlighterConfig.commentColor || color); break; } else { var tagEnd = text.indexOf(">", i) + 1; if (tagEnd == 0) { writeText("<", color); i = i - match[0].length + 1; break; } if (text.charAt(tagEnd - 2) == "/" || syntaxHighlighterConfig.voidTags.indexOf(match[0].substring(1)) != -1) { writeText(text.substring(i - match[0].length, tagEnd), syntaxHighlighterConfig.tagColor || color); i = tagEnd; } else { var tagName = match[0].substring(1); if (syntaxHighlighterConfig.sourceTags.indexOf(tagName) != -1) { var stopAfter = "</" + tagName + ">"; var endIndex = text.indexOf(stopAfter, i); if (endIndex == -1) { endIndex = text.length; } else { endIndex += stopAfter.length; } writeText(text.substring(i - match[0].length, endIndex), syntaxHighlighterConfig.tagColor || color); i = endIndex; } else if (syntaxHighlighterConfig.nowikiTags.indexOf(tagName) != -1) { writeText(text.substring(i - match[0].length, tagEnd), syntaxHighlighterConfig.tagColor || color); i = tagEnd; highlightBlock(syntaxHighlighterConfig.tagColor || color, nowikiTagBreakerRegexCache[tagName]); } else { writeText(text.substring(i - match[0].length, tagEnd), syntaxHighlighterConfig.tagColor || color); i = tagEnd; if (!tagBreakerRegexCache[tagName]) { tagBreakerRegexCache[tagName] = breakerRegexWithPrefix("</" + tagName + ">"); } highlightBlock(syntaxHighlighterConfig.tagColor || color, tagBreakerRegexCache[tagName]); } } } break; case "=": if (/[^=]=+$/.test(text.substring(i, text.indexOf("\n", i)))) { writeText("=", syntaxHighlighterConfig.headingColor || color); highlightBlock(syntaxHighlighterConfig.headingColor || color, headingBreakerRegex); } else { writeText("=", color); } break; case "*": case "#": case ":": writeText(match[0], syntaxHighlighterConfig.listOrIndentColor || color); break; case ";": writeText(";", syntaxHighlighterConfig.headingColor || color); highlightBlock(syntaxHighlighterConfig.headingColor || color, headingBreakerRegex); break; case "-": writeText(match[0], syntaxHighlighterConfig.hrColor || color); break; case "\\": writeText(match[0], syntaxHighlighterConfig.boldOrItalicColor || color); if (match[0].length == 6) { if (assumedBold) { if (assumedItalic) { assumedBold = false; } else { return; } } else { if (assumedItalic) { assumedBold = true; } else { highlightBlock(syntaxHighlighterConfig.boldOrItalicColor || color, defaultBreakerRegex, true, false); } } } else { if (assumedItalic) { if (assumedBold) { assumedItalic = false; } else { return; } } else { if (assumedBold) { assumedItalic = true; } else { highlightBlock(syntaxHighlighterConfig.boldOrItalicColor || color, defaultBreakerRegex, false, true); } } } break; case "&": writeText(match[0], syntaxHighlighterConfig.entityColor || color); break; case "~": writeText(match[0], syntaxHighlighterConfig.signatureColor || color); break; default: writeText(match[0], syntaxHighlighterConfig.externalLinkColor || color); } } } var startTime = Date.now(); highlightBlock("", defaultBreakerRegex); if (i < text.length) { writeText(text.substring(i), ""); } var endTime = Date.now(); if (endTime - startTime > syntaxHighlighterConfig.timeout) { clearInterval(highlightSyntaxIfNeededIntervalID); wpTextbox1.removeEventListener("input", highlightSyntax); wpTextbox1.removeEventListener("scroll", syncScrollX); wpTextbox1.removeEventListener("scroll", syncScrollY); attributeObserver.disconnect(); parentObserver.disconnect(); syntaxStyleTextNode.nodeValue = ""; var errorMessage = { zh: "由于渲染耗时过长, Syntax highlighting 已在本页禁用。在设定中渲染时间被限制在$1毫秒以内,但这次我们耗去了$2毫秒。您可以尝试关闭一些标签页和程序,并点击“显示预览”或“显示更改”。如果这不起作用,请尝试更换一个不同的浏览器。如果这还不起作用,请尝试更换一个更快的电脑=w=。", en: "Syntax highlighting on this page was disabled because it took too long. The maximum allowed highlighting time is $1ms, and your computer took $2ms. Try closing some tabs and programs and clicking \"Show preview\" or \"Show changes\". If that doesn't work, try a different web browser, and if that doesn't work, try a faster computer.", }; var wgUserLanguage = mw.config.get("wgUserLanguage"); errorMessage = errorMessage[wgUserLanguage] || errorMessage[wgUserLanguage.substring(0, wgUserLanguage.indexOf("-"))] || errorMessage.en; wpTextbox1.style.backgroundColor = ""; wpTextbox1.style.marginTop = "0"; wpTextbox0.removeAttribute("dir"); wpTextbox0.removeAttribute("lang"); wpTextbox0.setAttribute("style", "color:red; font-size:small"); wpTextbox0.textContent = errorMessage.replace("$1", syntaxHighlighterConfig.timeout).replace("$2", endTime - startTime); return; } if (maxSpanNumber < spanNumber) { var fragment = document.createDocumentFragment(); do { fragment.appendChild(document.createElement("span")).id = "s" + ++maxSpanNumber; } while (maxSpanNumber < spanNumber); wpTextbox0.appendChild(fragment); } syntaxStyleTextNode.nodeValue = css.substring(2).replace(/\n/g, "\\A ") + "'}"; } function syncScrollX() { wpTextbox0.scrollLeft = wpTextbox1.scrollLeft; } function syncScrollY() { wpTextbox0.scrollTop = wpTextbox1.scrollTop; } function syncTextDirection() { wpTextbox0.dir = wpTextbox1.dir; } function syncParent() { if (wpTextbox1.previousSibling != wpTextbox0) { wpTextbox1.parentNode.insertBefore(wpTextbox0, wpTextbox1); parentObserver.disconnect(); parentObserver.observe(wpTextbox1.parentNode, {childList: true}); } } function highlightSyntaxIfNeeded() { if (wpTextbox1.value != lastText) { highlightSyntax(); } if (wpTextbox1.scrollLeft != wpTextbox0.scrollLeft) { syncScrollX(); } if (wpTextbox1.scrollTop != wpTextbox0.scrollTop) { syncScrollY(); } if (wpTextbox1.offsetHeight != wpTextbox0.offsetHeight) { var height = wpTextbox1.offsetHeight + "px"; wpTextbox0.style.height = height; wpTextbox1.style.marginTop = "-" + height; } } function setup() { function configureColor(parameterName, hardcodedFallback, defaultOk) { if (typeof(syntaxHighlighterConfig[parameterName]) == "undefined") { syntaxHighlighterConfig[parameterName] = syntaxHighlighterSiteConfig[parameterName]; } if (syntaxHighlighterConfig[parameterName] == "normal") { syntaxHighlighterConfig[parameterName] = hardcodedFallback; } else if (typeof(syntaxHighlighterConfig[parameterName]) != "undefined") { return; } else if (typeof(syntaxHighlighterConfig.defaultColor) != "undefined" && defaultOk) { syntaxHighlighterConfig[parameterName] = syntaxHighlighterConfig.defaultColor; } else { syntaxHighlighterConfig[parameterName] = hardcodedFallback; } } window.syntaxHighlighterSiteConfig = window.syntaxHighlighterSiteConfig || {}; window.syntaxHighlighterConfig = window.syntaxHighlighterConfig || {}; configureColor("backgroundColor", "#FFF", false); configureColor("foregroundColor", "#000", false); configureColor("boldOrItalicColor", "#EEE", true); configureColor("commentColor", "#EFE", true); configureColor("entityColor", "#DFD", true); configureColor("externalLinkColor", "#EFF", true); configureColor("headingColor", "#EEE", true); configureColor("hrColor", "#EEE", true); configureColor("listOrIndentColor", "#EFE", true); configureColor("parameterColor", "#FC6", true); configureColor("signatureColor", "#FC6", true); configureColor("tagColor", "#FEF", true); configureColor("tableColor", "#FFC", true); configureColor("templateColor", "#FFC", true); configureColor("wikilinkColor", "#EEF", true); syntaxHighlighterConfig.nowikiTags = syntaxHighlighterConfig.nowikiTags || syntaxHighlighterSiteConfig.nowikiTags || ["nowiki", "pre"]; syntaxHighlighterConfig.sourceTags = syntaxHighlighterConfig.sourceTags || syntaxHighlighterSiteConfig.sourceTags || ["math", "syntaxhighlight", "source", "timeline", "hiero", "score"]; syntaxHighlighterConfig.voidTags = syntaxHighlighterConfig.voidTags || syntaxHighlighterSiteConfig.voidTags || ["br", "hr"]; syntaxHighlighterConfig.timeout = syntaxHighlighterConfig.timeout || syntaxHighlighterSiteConfig.timeout || 50; syntaxHighlighterConfig.nowikiTags.forEach(function(tagName) { nowikiTagBreakerRegexCache[tagName] = nowikiTagBreakerRegex(tagName); }); wpTextbox0 = document.createElement("div"); wpTextbox1 = document.getElementById("wpTextbox1"); var syntaxStyleElement = document.createElement("style"); syntaxStyleTextNode = syntaxStyleElement.appendChild(document.createTextNode("")); var wpTextbox1Style = window.getComputedStyle(wpTextbox1); var resize = (wpTextbox1Style.resize == "vertical" || wpTextbox1Style.resize == "both" ? "vertical" : "none"); wpTextbox0.dir = wpTextbox1.dir; wpTextbox0.id = "wpTextbox0"; wpTextbox0.lang = wpTextbox1.lang; wpTextbox0.style.backgroundColor = syntaxHighlighterConfig.backgroundColor; wpTextbox0.style.border = "1px solid transparent"; wpTextbox0.style.boxSizing = "border-box"; wpTextbox0.style.clear = wpTextbox1Style.clear; wpTextbox0.style.color = "transparent"; wpTextbox0.style.fontFamily = wpTextbox1Style.fontFamily; wpTextbox0.style.fontSize = wpTextbox1Style.fontSize; wpTextbox0.style.lineHeight = "normal"; wpTextbox0.style.marginBottom = "0"; wpTextbox0.style.marginLeft = "0"; wpTextbox0.style.marginRight = "0"; wpTextbox0.style.marginTop = "0"; wpTextbox0.style.overflowX = "auto"; wpTextbox0.style.overflowY = "scroll"; wpTextbox0.style.resize = resize; wpTextbox0.style.tabSize = wpTextbox1Style.tabSize; wpTextbox0.style.whiteSpace = "pre-wrap"; wpTextbox0.style.width = "100%"; wpTextbox0.style.wordWrap = "normal"; wpTextbox1.style.backgroundColor = "transparent"; wpTextbox1.style.border = "1px inset gray"; wpTextbox1.style.boxSizing = "border-box"; wpTextbox1.style.color = syntaxHighlighterConfig.foregroundColor; wpTextbox1.style.fontSize = wpTextbox1Style.fontSize; wpTextbox1.style.lineHeight = "normal"; wpTextbox1.style.marginBottom = wpTextbox1Style.marginBottom; wpTextbox1.style.marginLeft = "0"; wpTextbox1.style.marginRight = "0"; wpTextbox1.style.overflowX = "auto"; wpTextbox1.style.overflowY = "scroll"; wpTextbox1.style.padding = "0"; wpTextbox1.style.resize = resize; wpTextbox1.style.width = "100%"; wpTextbox1.style.wordWrap = "normal"; wpTextbox1.style.height = wpTextbox0.style.height = wpTextbox1.offsetHeight + "px"; wpTextbox1.style.marginTop = -wpTextbox1.offsetHeight + "px"; wpTextbox1.parentNode.insertBefore(wpTextbox0, wpTextbox1); document.head.appendChild(syntaxStyleElement); wpTextbox1.addEventListener("input", highlightSyntax); wpTextbox1.addEventListener("scroll", syncScrollX); wpTextbox1.addEventListener("scroll", syncScrollY); attributeObserver = new MutationObserver(syncTextDirection); attributeObserver.observe(wpTextbox1, {attributes: true}); parentObserver = new MutationObserver(syncParent); parentObserver.observe(wpTextbox1.parentNode, {childList: true}); highlightSyntaxIfNeededIntervalID = setInterval(highlightSyntaxIfNeeded, 500); highlightSyntax(); } var wgAction = mw.config.get("wgAction"); var layoutEngine = $.client.profile().layout; if ((wgAction == "edit" || wgAction == "submit") && mw.config.get("wgPageContentModel") == "wikitext" && layoutEngine != "trident" && layoutEngine != "edge") { if (document.readyState == "complete") { setup(); } else { window.addEventListener("load", setup); } } });
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