MediaWiki:Gadget-code-prettify-core.js
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// 使用本js只是为了方便无法获得Google的js的用户使用，本文件各项权利按下列声明归各自所有者所有
// 542行追加了加行号id属性功能
/* https://github.com/google/code-prettify/blob/master/src/prettify.js */
/**
* @license
* Copyright (C) 2006 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
"use strict";
(() => {
const PR_SHOULD_USE_CONTINUATION = true;
window.PR_SHOULD_USE_CONTINUATION = PR_SHOULD_USE_CONTINUATION;
const FLOW_CONTROL_KEYWORDS = ["break,continue,do,else,for,if,return,while"];
const C_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "auto,case,char,const,default," + "double,enum,extern,float,goto,inline,int,long,register,restrict,short,signed," + "sizeof,static,struct,switch,typedef,union,unsigned,void,volatile"];
const COMMON_KEYWORDS = [C_KEYWORDS, "catch,class,delete,false,import," + "new,operator,private,protected,public,this,throw,true,try,typeof"];
const CPP_KEYWORDS = [COMMON_KEYWORDS, "alignas,alignof,align_union,asm,axiom,bool," + "concept,concept_map,const_cast,constexpr,decltype,delegate," + "dynamic_cast,explicit,export,friend,generic,late_check," + "mutable,namespace,noexcept,noreturn,nullptr,property,reinterpret_cast,static_assert," + "static_cast,template,typeid,typename,using,virtual,where"];
const JAVA_KEYWORDS = [COMMON_KEYWORDS, "abstract,assert,boolean,byte,extends,finally,final,implements,import," + "instanceof,interface,null,native,package,strictfp,super,synchronized," + "throws,transient"];
const CSHARP_KEYWORDS = [COMMON_KEYWORDS, "abstract,add,alias,as,ascending,async,await,base,bool,by,byte,checked,decimal,delegate,descending," + "dynamic,event,finally,fixed,foreach,from,get,global,group,implicit,in,interface," + "internal,into,is,join,let,lock,null,object,out,override,orderby,params," + "partial,readonly,ref,remove,sbyte,sealed,select,set,stackalloc,string,select,uint,ulong," + "unchecked,unsafe,ushort,value,var,virtual,where,yield"];
const COFFEE_KEYWORDS = "all,and,by,catch,class,else,extends,false,finally," + "for,if,in,is,isnt,loop,new,no,not,null,of,off,on,or,return,super,then," + "throw,true,try,unless,until,when,while,yes";
const JSCRIPT_KEYWORDS = [COMMON_KEYWORDS, "abstract,async,await,constructor,debugger,enum,eval,export,from,function," + "get,import,implements,instanceof,interface,let,null,of,set,undefined," + "var,with,yield,Infinity,NaN"];
const PERL_KEYWORDS = "caller,delete,die,do,dump,elsif,eval,exit,foreach,for," + "goto,if,import,last,local,my,next,no,our,print,package,redo,require," + "sub,undef,unless,until,use,wantarray,while,BEGIN,END";
const PYTHON_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "and,as,assert,class,def,del," + "elif,except,exec,finally,from,global,import,in,is,lambda," + "nonlocal,not,or,pass,print,raise,try,with,yield," + "False,True,None"];
const RUBY_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "alias,and,begin,case,class," + "def,defined,elsif,end,ensure,false,in,module,next,nil,not,or,redo," + "rescue,retry,self,super,then,true,undef,unless,until,when,yield," + "BEGIN,END"];
const SH_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "case,done,elif,esac,eval,fi," + "function,in,local,set,then,until"];
const ALL_KEYWORDS = [CPP_KEYWORDS, CSHARP_KEYWORDS, JAVA_KEYWORDS, JSCRIPT_KEYWORDS, PERL_KEYWORDS, PYTHON_KEYWORDS, RUBY_KEYWORDS, SH_KEYWORDS];
const C_TYPES = /^(DIR|FILE|array|vector|(de|priority_)?queue|(forward_)?list|stack|(const_)?(reverse_)?iterator|(unordered_)?(multi)?(set|map)|bitset|u?(int|float)\d*)\b/;
const PR_STRING = "str";
const PR_KEYWORD = "kwd";
const PR_COMMENT = "com";
const PR_TYPE = "typ";
const PR_LITERAL = "lit";
const PR_PUNCTUATION = "pun";
const PR_PLAIN = "pln";
const PR_TAG = "tag";
const PR_DECLARATION = "dec";
const PR_SOURCE = "src";
const PR_ATTRIB_NAME = "atn";
const PR_ATTRIB_VALUE = "atv";
const PR_NOCODE = "nocode";
const REGEXP_PRECEDER_PATTERN = "(?:^^\\.?|[+-]|[!=]=?=?|\\#|%=?|&&?=?|\\(|\\*=?|[+\\-]=|->|\\/=?|::?|<<?=?|>>?>?=?|,|;|\\?|@|\\[|~|{|\\^\\^?=?|\\|\\|?=?|break|case|continue|delete|do|else|finally|instanceof|return|throw|try|typeof)\\s*";
function combinePrefixPatterns(regexs) {
let capturedGroupIndex = 0;
let needToFoldCase = false;
let ignoreCase = false;
for (let i = 0, n = regexs.length; i < n; ++i) {
const regex = regexs[i];
if (regex.ignoreCase) {
ignoreCase = true;
} else if (/[a-z]/i.test(regex.source.replace(/\\u[0-9a-f]{4}|\\x[0-9a-f]{2}|\\[^ux]/gi, ""))) {
needToFoldCase = true;
ignoreCase = false;
break;
}
}
const escapeCharToCodeUnit = {
b: 8,
t: 9,
n: 10,
v: 11,
f: 12,
r: 13,
};
function decodeEscape(charsetPart) {
let cc0 = charsetPart.charCodeAt(0);
if (cc0 !== 92) {
return cc0;
}
const c1 = charsetPart.charAt(1);
cc0 = escapeCharToCodeUnit[c1];
if (cc0) {
return cc0;
} else if ("0" <= c1 && c1 <= "7") {
return parseInt(charsetPart.substring(1), 8);
} else if (c1 === "u" || c1 === "x") {
return parseInt(charsetPart.substring(2), 16);
}
return charsetPart.charCodeAt(1);
}
function encodeEscape(charCode) {
if (charCode < 32) {
return (charCode < 16 ? "\\x0" : "\\x") + charCode.toString(16);
}
const ch = String.fromCharCode(charCode);
return ch === "\\" || ch === "-" || ch === "]" || ch === "^" ? `\\${ch}` : ch;
}
function caseFoldCharset(charSet) {
const charsetParts = charSet.substring(1, charSet.length - 1).match(new RegExp("\\\\u[0-9A-Fa-f]{4}" + "|\\\\x[0-9A-Fa-f]{2}" + "|\\\\[0-3][0-7]{0,2}" + "|\\\\[0-7]{1,2}" + "|\\\\[\\s\\S]" + "|-" + "|[^-\\\\]", "g"));
const ranges = [];
const inverse = charsetParts[0] === "^";
const out = ["["];
if (inverse) {
out.push("^");
}
for (let i = inverse ? 1 : 0, n = charsetParts.length; i < n; ++i) {
const p = charsetParts[i];
if (/\\[bdsw]/i.test(p)) {
out.push(p);
} else {
const start = decodeEscape(p);
let end;
if (i + 2 < n && "-" === charsetParts[i + 1]) {
end = decodeEscape(charsetParts[i + 2]);
i += 2;
} else {
end = start;
}
ranges.push([start, end]);
if (!(end < 65 || start > 122)) {
if (!(end < 65 || start > 90)) {
ranges.push([Math.max(65, start) | 32, Math.min(end, 90) | 32]);
}
if (!(end < 97 || start > 122)) {
ranges.push([Math.max(97, start) & ~32, Math.min(end, 122) & ~32]);
}
}
}
}
ranges.sort((a, b) => {
return a[0] - b[0] || b[1] - a[1];
});
const consolidatedRanges = [];
let lastRange = [];
for (let i = 0; i < ranges.length; ++i) {
const range = ranges[i];
if (range[0] <= lastRange[1] + 1) {
lastRange[1] = Math.max(lastRange[1], range[1]);
} else {
consolidatedRanges.push(lastRange = range);
}
}
for (let i = 0; i < consolidatedRanges.length; ++i) {
const range = consolidatedRanges[i];
out.push(encodeEscape(range[0]));
if (range[1] > range[0]) {
if (range[1] + 1 > range[0]) {
out.push("-");
}
out.push(encodeEscape(range[1]));
}
}
out.push("]");
return out.join("");
}
function allowAnywhereFoldCaseAndRenumberGroups(regex) {
const parts = regex.source.match(new RegExp("(?:" + "\\[(?:[^\\x5C\\x5D]|\\\\[\\s\\S])*\\]" + "|\\\\u[A-Fa-f0-9]{4}" + "|\\\\x[A-Fa-f0-9]{2}" + "|\\\\[0-9]+" + "|\\\\[^ux0-9]" + "|\\(\\?[:!=]" + "|[\\(\\)\\^]" + "|[^\\x5B\\x5C\\(\\)\\^]+" + ")", "g"));
const n = parts.length;
const capturedGroups = [];
for (let i = 0, groupIndex = 0; i < n; ++i) {
const p = parts[i];
if (p === "(") {
++groupIndex;
} else if ("\\" === p.charAt(0)) {
const decimalValue = +p.substring(1);
if (decimalValue) {
if (decimalValue <= groupIndex) {
capturedGroups[decimalValue] = -1;
} else {
parts[i] = encodeEscape(decimalValue);
}
}
}
}
for (let i = 1; i < capturedGroups.length; ++i) {
if (-1 === capturedGroups[i]) {
capturedGroups[i] = ++capturedGroupIndex;
}
}
for (let i = 0, groupIndex = 0; i < n; ++i) {
const p = parts[i];
if (p === "(") {
++groupIndex;
if (!capturedGroups[groupIndex]) {
parts[i] = "(?:";
}
} else if ("\\" === p.charAt(0)) {
const decimalValue = +p.substring(1);
if (decimalValue && decimalValue <= groupIndex) {
parts[i] = `\\${capturedGroups[decimalValue]}`;
}
}
}
for (let i = 0; i < n; ++i) {
if ("^" === parts[i] && "^" !== parts[i + 1]) {
parts[i] = "";
}
}
if (regex.ignoreCase && needToFoldCase) {
for (let i = 0; i < n; ++i) {
const p = parts[i];
const ch0 = p.charAt(0);
if (p.length >= 2 && ch0 === "[") {
parts[i] = caseFoldCharset(p);
} else if (ch0 !== "\\") {
parts[i] = p.replace(/[a-zA-Z]/g, (ch) => {
const cc = ch.charCodeAt(0);
return `[${String.fromCharCode(cc & ~32, cc | 32)}]`;
});
}
}
}
return parts.join("");
}
const rewritten = [];
for (let i = 0, n = regexs.length; i < n; ++i) {
const regex = regexs[i];
if (regex.global || regex.multiline) {
throw new Error(`${regex}`);
}
rewritten.push(`(?:${allowAnywhereFoldCaseAndRenumberGroups(regex)})`);
}
return new RegExp(rewritten.join("|"), ignoreCase ? "gi" : "g");
}
function extractSourceSpans(node, isPreformatted) {
const nocode = /(?:^|\s)nocode(?:\s|$)/;
const chunks = [];
let length = 0;
const spans = [];
let k = 0;
function walk(node) {
const type = node.nodeType;
if (type === 1) {
if (nocode.test(node.className)) {
return;
}
for (let child = node.firstChild; child; child = child.nextSibling) {
walk(child);
}
const nodeName = node.nodeName.toLowerCase();
if ("br" === nodeName || "li" === nodeName) {
chunks[k] = "\n";
spans[k << 1] = length++;
spans[k++ << 1 | 1] = node;
}
} else if (type === 3 || type === 4) {
let text = node.nodeValue;
if (text.length) {
if (!isPreformatted) {
text = text.replace(/[ \t\r\n]+/g, " ");
} else {
text = text.replace(/\r\n?/g, "\n");
}
chunks[k] = text;
spans[k << 1] = length;
length += text.length;
spans[k++ << 1 | 1] = node;
}
}
}
walk(node);
return {
sourceCode: chunks.join("").replace(/\n$/, ""),
spans: spans,
};
}
function appendDecorations(sourceNode, basePos, sourceCode, langHandler, out) {
if (!sourceCode) {
return;
}
const job = {
sourceNode: sourceNode,
pre: 1,
langExtension: null,
numberLines: null,
sourceCode: sourceCode,
spans: null,
basePos: basePos,
decorations: null,
};
langHandler(job);
out.push(...job.decorations);
}
const notWs = /\S/;
function childContentWrapper(element) {
let wrapper = undefined;
for (let c = element.firstChild; c; c = c.nextSibling) {
const type = c.nodeType;
wrapper = type === 1 ? wrapper ? element : c : type === 3 ? notWs.test(c.nodeValue) ? element : wrapper : wrapper;
}
return wrapper === element ? undefined : wrapper;
}
function createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns) {
const shortcuts = {};
let tokenizer;
(function () {
const allPatterns = shortcutStylePatterns.concat(fallthroughStylePatterns);
const allRegexs = [];
const regexKeys = {};
for (let i = 0, n = allPatterns.length; i < n; ++i) {
const patternParts = allPatterns[i];
const shortcutChars = patternParts[3];
if (shortcutChars) {
for (let c = shortcutChars.length; --c >= 0;) {
shortcuts[shortcutChars.charAt(c)] = patternParts;
}
}
const regex = patternParts[1];
const k = `${regex}`;
if (!Object.prototype.hasOwnProperty.bind(regexKeys)(k)) {
allRegexs.push(regex);
regexKeys[k] = null;
}
}
allRegexs.push(/[\0-\uffff]/);
tokenizer = combinePrefixPatterns(allRegexs);
})();
const nPatterns = fallthroughStylePatterns.length;
const decorate = function (job) {
const sourceCode = job.sourceCode,
basePos = job.basePos;
const sourceNode = job.sourceNode;
const decorations = [basePos, PR_PLAIN];
let pos = 0;
const tokens = sourceCode.match(tokenizer) || [];
const styleCache = {};
for (let ti = 0, nTokens = tokens.length; ti < nTokens; ++ti) {
const token = tokens[ti];
let style = styleCache[token];
let match = void 0;
let isEmbedded;
if (typeof style === "string") {
isEmbedded = false;
} else {
let patternParts = shortcuts[token.charAt(0)];
if (patternParts) {
match = token.match(patternParts[1]);
style = patternParts[0];
} else {
for (let i = 0; i < nPatterns; ++i) {
patternParts = fallthroughStylePatterns[i];
match = token.match(patternParts[1]);
if (match) {
style = patternParts[0];
break;
}
}
if (!match) {
style = PR_PLAIN;
}
}
isEmbedded = style.length >= 5 && "lang-" === style.substring(0, 5);
if (isEmbedded && !(match && typeof match[1] === "string")) {
isEmbedded = false;
style = PR_SOURCE;
}
if (!isEmbedded) {
styleCache[token] = style;
}
}
const tokenStart = pos;
pos += token.length;
if (!isEmbedded) {
decorations.push(basePos + tokenStart, style);
} else {
const embeddedSource = match[1];
let embeddedSourceStart = token.indexOf(embeddedSource);
let embeddedSourceEnd = embeddedSourceStart + embeddedSource.length;
if (match[2]) {
embeddedSourceEnd = token.length - match[2].length;
embeddedSourceStart = embeddedSourceEnd - embeddedSource.length;
}
const lang = style.substring(5);
appendDecorations(sourceNode, basePos + tokenStart, token.substring(0, embeddedSourceStart), decorate, decorations);
appendDecorations(sourceNode, basePos + tokenStart + embeddedSourceStart, embeddedSource, langHandlerForExtension(lang, embeddedSource), decorations);
appendDecorations(sourceNode, basePos + tokenStart + embeddedSourceEnd, token.substring(embeddedSourceEnd), decorate, decorations);
}
}
job.decorations = decorations;
};
return decorate;
}
function sourceDecorator(options) {
const shortcutStylePatterns = [],
fallthroughStylePatterns = [];
if (options.tripleQuotedStrings) {
shortcutStylePatterns.push([PR_STRING, /^(?:'''(?:[^'\\]|\\[\s\S]|'{1,2}(?=[^']))*(?:'''|$)|"""(?:[^"\\]|\\[\s\S]|"{1,2}(?=[^"]))*(?:"""|$)|'(?:[^'\\]|\\[\s\S])*(?:'|$)|"(?:[^"\\]|\\[\s\S])*(?:"|$))/, null, "'\""]);
} else if (options.multiLineStrings) {
shortcutStylePatterns.push([PR_STRING, /^(?:'(?:[^'\\]|\\[\s\S])*(?:'|$)|"(?:[^"\\]|\\[\s\S])*(?:"|$)|`(?:[^`\\]|\\[\s\S])*(?:`|$))/, null, "'\"`"]);
} else {
shortcutStylePatterns.push([PR_STRING, /^(?:'(?:[^'\\\r\n]|\\.)*(?:'|$)|"(?:[^"\\\r\n]|\\.)*(?:"|$))/, null, "\"'"]);
}
if (options.verbatimStrings) {
fallthroughStylePatterns.push([PR_STRING, /^@"(?:[^"]|"")*(?:"|$)/, null]);
}
const hc = options.hashComments;
if (hc) {
if (options.cStyleComments) {
if (hc > 1) {
shortcutStylePatterns.push([PR_COMMENT, /^#(?:##(?:[^#]|#(?!##))*(?:###|$)|.*)/, null, "#"]);
} else {
shortcutStylePatterns.push([PR_COMMENT, /^#(?:(?:define|e(?:l|nd)if|else|error|ifn?def|include|line|pragma|undef|warning)\b|[^\r\n]*)/, null, "#"]);
}
fallthroughStylePatterns.push([PR_STRING, /^<(?:(?:(?:\.\.\/)*|\/?)(?:[\w-]+(?:\/[\w-]+)+)?[\w-]+\.h(?:h|pp|\+\+)?|[a-z]\w*)>/, null]);
} else {
shortcutStylePatterns.push([PR_COMMENT, /^#[^\r\n]*/, null, "#"]);
}
}
if (options.cStyleComments) {
fallthroughStylePatterns.push([PR_COMMENT, /^\/\/[^\r\n]*/, null]);
fallthroughStylePatterns.push([PR_COMMENT, /^\/\*[\s\S]*?(?:\*\/|$)/, null]);
}
const regexLiterals = options.regexLiterals;
if (regexLiterals) {
const regexExcls = regexLiterals > 1 ? "" : "\n\r";
const regexAny = regexExcls ? "." : "[\\S\\s]";
const REGEX_LITERAL = `/(?=[^/*${regexExcls}])` + `(?:[^/\\x5B\\x5C${regexExcls}]` + `|\\x5C${regexAny}|\\x5B(?:[^\\x5C\\x5D${regexExcls}]` + `|\\x5C${regexAny})*(?:\\x5D|$))+` + "/";
fallthroughStylePatterns.push(["lang-regex", RegExp(`^${REGEXP_PRECEDER_PATTERN}(${REGEX_LITERAL})`)]);
}
const types = options.types;
if (types) {
fallthroughStylePatterns.push([PR_TYPE, types]);
}
const keywords = `${options.keywords}`.replace(/^ | $/g, "");
if (keywords.length) {
fallthroughStylePatterns.push([PR_KEYWORD, new RegExp(`^(?:${keywords.replace(/[\s,]+/g, "|")})\\b`), null]);
}
shortcutStylePatterns.push([PR_PLAIN, /^\s+/, null, " \r\n "]);
let punctuation = "^.[^\\s\\w.$@'\"`/\\\\]*";
if (options.regexLiterals) {
punctuation += "(?!s*/)";
}
fallthroughStylePatterns.push([PR_LITERAL, /^@[a-z_$][a-z_$@0-9]*/i, null], [PR_TYPE, /^(?:[@_]?[A-Z]+[a-z][A-Za-z_$@0-9]*|\w+_t\b)/, null], [PR_PLAIN, /^[a-z_$][a-z_$@0-9]*/i, null], [PR_LITERAL, new RegExp("^(?:" + "0x[a-f0-9]+" + "|(?:\\d(?:_\\d+)*\\d*(?:\\.\\d*)?|\\.\\d\\+)" + "(?:e[+\\-]?\\d+)?" + ")" + "[a-z]*", "i"), null, "0123456789"], [PR_PLAIN, /^\\[\s\S]?/, null], [PR_PUNCTUATION, new RegExp(punctuation), null]);
return createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns);
}
const decorateSource = sourceDecorator({
keywords: ALL_KEYWORDS,
hashComments: true,
cStyleComments: true,
multiLineStrings: true,
regexLiterals: true,
});
function numberLines(node, startLineNum, isPreformatted) {
const nocode = /(?:^|\s)nocode(?:\s|$)/;
const lineBreak = /\r\n?|\n/;
const document = node.ownerDocument;
let li = document.createElement("li");
while (node.firstChild) {
li.appendChild(node.firstChild);
}
const listItems = [li];
function walk(node) {
const type = node.nodeType;
if (type === 1 && !nocode.test(node.className)) {
if ("br" === node.nodeName.toLowerCase()) {
breakAfter(node);
if (node.parentNode) {
node.parentNode.removeChild(node);
}
} else {
for (let child = node.firstChild; child; child = child.nextSibling) {
walk(child);
}
}
} else if ((type === 3 || type === 4) && isPreformatted) {
const text = node.nodeValue;
const match = text.match(lineBreak);
if (match) {
const firstLine = text.substring(0, match.index);
node.nodeValue = firstLine;
const tail = text.substring(match.index + match[0].length);
if (tail) {
const parent = node.parentNode;
parent.insertBefore(document.createTextNode(tail), node.nextSibling);
}
breakAfter(node);
if (!firstLine) {
node.parentNode.removeChild(node);
}
}
}
}
function breakAfter(_lineEndNode) {
let lineEndNode = _lineEndNode;
while (!lineEndNode.nextSibling) {
lineEndNode = lineEndNode.parentNode;
if (!lineEndNode) {
return;
}
}
function breakLeftOf(limit, copy) {
const rightSide = copy ? limit.cloneNode(false) : limit;
const parent = limit.parentNode;
if (parent) {
const parentClone = breakLeftOf(parent, 1);
let next = limit.nextSibling;
parentClone.appendChild(rightSide);
for (let sibling = next; sibling; sibling = next) {
next = sibling.nextSibling;
parentClone.appendChild(sibling);
}
}
return rightSide;
}
let copiedListItem = breakLeftOf(lineEndNode.nextSibling, 0);
for (let parent;
(parent = copiedListItem.parentNode) && parent.nodeType === 1;) {
copiedListItem = parent;
}
listItems.push(copiedListItem);
}
for (let i = 0; i < listItems.length; ++i) {
walk(listItems[i]);
}
if (startLineNum === (startLineNum | 0)) {
listItems[0].setAttribute("value", startLineNum);
}
const ol = document.createElement("ol");
ol.className = "linenums";
const offset = Math.max(0, startLineNum - 1 | 0) || 0;
for (let i = 0, n = listItems.length; i < n; ++i) {
li = listItems[i];
li.className = `L${(i + offset) % 10}`;
li.id = `L${i + offset + 1}`;
if (!li.firstChild) {
li.appendChild(document.createTextNode(" "));
}
ol.appendChild(li);
}
node.appendChild(ol);
}
function recombineTagsAndDecorations(job) {
let isIE8OrEarlier = /\bMSIE\s(\d+)/.exec(navigator.userAgent);
isIE8OrEarlier = isIE8OrEarlier && +isIE8OrEarlier[1] <= 8;
const newlineRe = /\n/g;
const source = job.sourceCode;
const sourceLength = source.length;
let sourceIndex = 0;
const spans = job.spans;
const nSpans = spans.length;
let spanIndex = 0;
const decorations = job.decorations;
let nDecorations = decorations.length;
let decorationIndex = 0;
decorations[nDecorations] = sourceLength;
let decPos, i;
for (i = decPos = 0; i < nDecorations;) {
if (decorations[i] !== decorations[i + 2]) {
decorations[decPos++] = decorations[i++];
decorations[decPos++] = decorations[i++];
} else {
i += 2;
}
}
nDecorations = decPos;
for (i = decPos = 0; i < nDecorations;) {
const startPos = decorations[i];
const startDec = decorations[i + 1];
let end = i + 2;
while (end + 2 <= nDecorations && decorations[end + 1] === startDec) {
end += 2;
}
decorations[decPos++] = startPos;
decorations[decPos++] = startDec;
i = end;
}
nDecorations = decorations.length = decPos;
const sourceNode = job.sourceNode;
let oldDisplay = "";
if (sourceNode) {
oldDisplay = sourceNode.style.display;
sourceNode.style.display = "none";
}
try {
while (spanIndex < nSpans) {
const spanEnd = spans[spanIndex + 2] || sourceLength;
const decEnd = decorations[decorationIndex + 2] || sourceLength;
const end = Math.min(spanEnd, decEnd);
let textNode = spans[spanIndex + 1];
let styledText;
if (textNode.nodeType !== 1 && (styledText = source.substring(sourceIndex, end))) {
if (isIE8OrEarlier) {
styledText = styledText.replace(newlineRe, "\r");
}
textNode.nodeValue = styledText;
const document = textNode.ownerDocument;
const span = document.createElement("span");
span.className = decorations[decorationIndex + 1];
const parentNode = textNode.parentNode;
parentNode.replaceChild(span, textNode);
span.appendChild(textNode);
if (sourceIndex < spanEnd) {
spans[spanIndex + 1] = textNode = document.createTextNode(source.substring(end, spanEnd));
parentNode.insertBefore(textNode, span.nextSibling);
}
}
sourceIndex = end;
if (sourceIndex >= spanEnd) {
spanIndex += 2;
}
if (sourceIndex >= decEnd) {
decorationIndex += 2;
}
}
} finally {
if (sourceNode) {
sourceNode.style.display = oldDisplay;
}
}
}
const langHandlerRegistry = {};
function registerLangHandler(handler, fileExtensions) {
for (let i = fileExtensions.length; --i >= 0;) {
const ext = fileExtensions[i];
if (!Object.prototype.hasOwnProperty.bind(langHandlerRegistry)(ext)) {
langHandlerRegistry[ext] = handler;
} else if (window.console) {
console.warn("cannot override language handler %s", ext);
}
}
}
function langHandlerForExtension(_extension, source) {
let extension = _extension;
if (!(extension && Object.prototype.hasOwnProperty.bind(langHandlerRegistry)(extension))) {
extension = /^\s*</.test(source) ? "default-markup" : "default-code";
}
return langHandlerRegistry[extension];
}
registerLangHandler(decorateSource, ["default-code"]);
registerLangHandler(createSimpleLexer([], [
[PR_PLAIN, /^[^<?]+/],
[PR_DECLARATION, /^<!\w[^>]*(?:>|$)/],
[PR_COMMENT, /^<!--[\s\S]*?(?:-->|$)/],
["lang-", /^<\?([\s\S]+?)(?:\?>|$)/],
["lang-", /^<%([\s\S]+?)(?:%>|$)/],
[PR_PUNCTUATION, /^(?:<[%?]|[%?]>)/],
["lang-", /^<xmp\b[^>]*>([\s\S]+?)<\/xmp\b[^>]*>/i],
["lang-js", /^<script\b[^>]*>([\s\S]*?)(<\/script\b[^>]*>)/i],
["lang-css", /^<style\b[^>]*>([\s\S]*?)(<\/style\b[^>]*>)/i],
["lang-in.tag", /^(<\/?[a-z][^<>]*>)/i],
]), ["default-markup", "htm", "html", "mxml", "xhtml", "xml", "xsl"]);
registerLangHandler(createSimpleLexer([
[PR_PLAIN, /^[\s]+/, null, " \r\n"],
[PR_ATTRIB_VALUE, /^(?:"[^"]*"?|'[^']*'?)/, null, "\"'"],
], [
[PR_TAG, /^^<\/?[a-z](?:[\w.:-]*\w)?|\/?>$/i],
[PR_ATTRIB_NAME, /^(?!style[\s=]|on)[a-z](?:[\w:-]*\w)?/i],
["lang-uq.val", /^=\s*([^>'"\s]*(?:[^>'"\s/]|\/(?=\s)))/],
[PR_PUNCTUATION, /^[=<>/]+/],
["lang-js", /^on\w+\s*=\s*"([^"]+)"/i],
["lang-js", /^on\w+\s*=\s*'([^']+)'/i],
["lang-js", /^on\w+\s*=\s*([^"'>\s]+)/i],
["lang-css", /^style\s*=\s*"([^"]+)"/i],
["lang-css", /^style\s*=\s*'([^']+)'/i],
["lang-css", /^style\s*=\s*([^"'>\s]+)/i],
]), ["in.tag"]);
registerLangHandler(createSimpleLexer([], [
[PR_ATTRIB_VALUE, /^[\s\S]+/],
]), ["uq.val"]);
registerLangHandler(sourceDecorator({
keywords: CPP_KEYWORDS,
hashComments: true,
cStyleComments: true,
types: C_TYPES,
}), ["c", "cc", "cpp", "cxx", "cyc", "m"]);
registerLangHandler(sourceDecorator({
keywords: "null,true,false",
}), ["json"]);
registerLangHandler(sourceDecorator({
keywords: CSHARP_KEYWORDS,
hashComments: true,
cStyleComments: true,
verbatimStrings: true,
types: C_TYPES,
}), ["cs"]);
registerLangHandler(sourceDecorator({
keywords: JAVA_KEYWORDS,
cStyleComments: true,
}), ["java"]);
registerLangHandler(sourceDecorator({
keywords: SH_KEYWORDS,
hashComments: true,
multiLineStrings: true,
}), ["bash", "bsh", "csh", "sh"]);
registerLangHandler(sourceDecorator({
keywords: PYTHON_KEYWORDS,
hashComments: true,
multiLineStrings: true,
tripleQuotedStrings: true,
}), ["cv", "py", "python"]);
registerLangHandler(sourceDecorator({
keywords: PERL_KEYWORDS,
hashComments: true,
multiLineStrings: true,
regexLiterals: 2,
}), ["perl", "pl", "pm"]);
registerLangHandler(sourceDecorator({
keywords: RUBY_KEYWORDS,
hashComments: true,
multiLineStrings: true,
regexLiterals: true,
}), ["rb", "ruby"]);
registerLangHandler(sourceDecorator({
keywords: JSCRIPT_KEYWORDS,
cStyleComments: true,
regexLiterals: true,
}), ["javascript", "js", "ts", "typescript"]);
registerLangHandler(sourceDecorator({
keywords: COFFEE_KEYWORDS,
hashComments: 3,
cStyleComments: true,
multilineStrings: true,
tripleQuotedStrings: true,
regexLiterals: true,
}), ["coffee"]);
registerLangHandler(createSimpleLexer([], [
[PR_STRING, /^[\s\S]+/],
]), ["regex"]);
function applyDecorator(job) {
const opt_langExtension = job.langExtension;
try {
const sourceAndSpans = extractSourceSpans(job.sourceNode, job.pre);
const source = sourceAndSpans.sourceCode;
job.sourceCode = source;
job.spans = sourceAndSpans.spans;
job.basePos = 0;
langHandlerForExtension(opt_langExtension, source)(job);
recombineTagsAndDecorations(job);
} catch (e) {
if (window.console) {
console.log(e && e.stack || e);
}
}
}
function $prettyPrintOne(sourceCodeHtml, opt_langExtension, opt_numberLines) {
const nl = opt_numberLines || false;
const langExtension = opt_langExtension || null;
let container = document.createElement("div");
container.innerHTML = `<pre>${sourceCodeHtml}</pre>`;
container = container.firstChild;
if (nl) {
numberLines(container, nl, true);
}
const job = {
langExtension: langExtension,
numberLines: nl,
sourceNode: container,
pre: 1,
sourceCode: null,
basePos: null,
spans: null,
decorations: null,
};
applyDecorator(job);
return container.innerHTML;
}
function $prettyPrint(opt_whenDone, opt_root) {
const root = opt_root || document.body;
const doc = root.ownerDocument || document;
function byTagName(tn) {
return root.getElementsByTagName(tn);
}
let codeSegments = [byTagName("pre"), byTagName("code"), byTagName("xmp")];
const elements = [];
for (let i = 0; i < codeSegments.length; ++i) {
for (let j = 0, n = codeSegments[i].length; j < n; ++j) {
elements.push(codeSegments[i][j]);
}
}
codeSegments = null;
let clock = Date;
if (!clock.now) {
clock = {
now: function () {
return +new Date();
},
};
}
let k = 0;
const langExtensionRe = /\blang(?:uage)?-([\w.]+)(?!\S)/;
const prettyPrintRe = /\bprettyprint\b/;
const prettyPrintedRe = /\bprettyprinted\b/;
const preformattedTagNameRe = /pre|xmp/i;
const codeRe = /^code$/i;
const preCodeXmpRe = /^(?:pre|code|xmp)$/i;
function doWork() {
const endTime = window.PR_SHOULD_USE_CONTINUATION ? clock.now() + 250 : Infinity;
for (; k < elements.length && clock.now() < endTime; k++) {
const cs = elements[k];
const attrs = {};
let preceder = cs;
while (Number.MAX_SAFE_INTEGER > Number.MIN_SAFE_INTEGER) {
const nt = preceder.nodeType;
const value = (nt === 7 || nt === 8) && preceder.nodeValue;
if (value ? !/^\??prettify\b/.test(value) : nt !== 3 || /\S/.test(preceder.nodeValue)) {
break;
}
if (value) {
value.replace(/\b(\w+)=([\w:.%+-]+)/g, (_, name, value) => {
attrs[name] = value;
});
break;
}
preceder = preceder.previousSibling;
}
const className = cs.className;
if ((Object.keys(attrs).length > 0 || prettyPrintRe.test(className)) && !prettyPrintedRe.test(className)) {
let nested = false;
for (let p = cs.parentNode; p; p = p.parentNode) {
const tn = p.tagName;
if (preCodeXmpRe.test(tn) && p.className && prettyPrintRe.test(p.className)) {
nested = true;
break;
}
}
if (!nested) {
cs.classList.add("prettyprinted");
let langExtension = attrs.lang;
if (!langExtension) {
langExtension = className.match(langExtensionRe);
let wrapper;
if (!langExtension && (wrapper = childContentWrapper(cs)) && codeRe.test(wrapper.tagName)) {
langExtension = wrapper.className.match(langExtensionRe);
}
if (langExtension) {
langExtension = langExtension[1];
}
}
let preformatted;
if (preformattedTagNameRe.test(cs.tagName)) {
preformatted = 1;
} else {
const currentStyle = cs.currentStyle;
const defaultView = doc.defaultView;
const whitespace = currentStyle ? currentStyle.whiteSpace : defaultView && defaultView.getComputedStyle ? defaultView.getComputedStyle(cs, null).getPropertyValue("white-space") : 0;
preformatted = whitespace && "pre" === whitespace.substring(0, 3);
}
let lineNums = attrs.linenums;
if (!(lineNums = lineNums === "true" || +lineNums)) {
lineNums = className.match(/\blinenums\b(?::(\d+))?/);
lineNums = lineNums ? lineNums[1] && lineNums[1].length ? +lineNums[1] : true : false;
}
if (lineNums) {
numberLines(cs, lineNums, preformatted);
}
const prettyPrintingJob = {
langExtension: langExtension,
sourceNode: cs,
numberLines: lineNums,
pre: preformatted,
sourceCode: null,
basePos: null,
spans: null,
decorations: null,
};
applyDecorator(prettyPrintingJob);
}
}
}
if (k < elements.length) {
window.setTimeout(doWork, 250);
} else if ("function" === typeof opt_whenDone) {
opt_whenDone();
}
}
doWork();
}
window.PR = {
createSimpleLexer: createSimpleLexer,
registerLangHandler: registerLangHandler,
sourceDecorator: sourceDecorator,
PR_ATTRIB_NAME: PR_ATTRIB_NAME,
PR_ATTRIB_VALUE: PR_ATTRIB_VALUE,
PR_COMMENT: PR_COMMENT,
PR_DECLARATION: PR_DECLARATION,
PR_KEYWORD: PR_KEYWORD,
PR_LITERAL: PR_LITERAL,
PR_NOCODE: PR_NOCODE,
PR_PLAIN: PR_PLAIN,
PR_PUNCTUATION: PR_PUNCTUATION,
PR_SOURCE: PR_SOURCE,
PR_STRING: PR_STRING,
PR_TAG: PR_TAG,
PR_TYPE: PR_TYPE,
prettyPrintOne: window.prettyPrintOne = $prettyPrintOne,
prettyPrint: window.prettyPrint = $prettyPrint,
};
/* https://github.com/google/code-prettify/blob/master/src/lang-css.js */
registerLangHandler(createSimpleLexer([
[PR_PLAIN, /^[ \t\r\n\f]+/, null, " \r\n\f"],
], [
[PR_STRING, /^"(?:[^\n\r\f"\\]|\\(?:\r\n?|\n|\f)|\\[\s\S])*"/, null],
[PR_STRING, /^'(?:[^\n\r\f'\\]|\\(?:\r\n?|\n|\f)|\\[\s\S])*'/, null],
["lang-css-str", /^url\(([^)"']+)\)/i],
[PR_KEYWORD, /^(?:url|rgb|!important|@import|@page|@media|@charset|inherit)(?=[^\-\w]|$)/i, null],
["lang-css-kw", /^(-?(?:[_a-z]|(?:\\[0-9a-f]+ ?))(?:[_a-z0-9-]|\\(?:\\[0-9a-f]+ ?))*)\s*:/i],
[PR_COMMENT, /^\/\*[^*]*\*+(?:[^/*][^*]*\*+)*\//],
[PR_COMMENT, /^(?:<!--|-->)/],
[PR_LITERAL, /^(?:\d+|\d*\.\d+)(?:%|[a-z]+)?/i],
[PR_LITERAL, /^#(?:[0-9a-f]{3}){1,2}\b/i],
[PR_PLAIN, /^-?(?:[_a-z]|(?:\\[\da-f]+ ?))(?:[_a-z\d-]|\\(?:\\[\da-f]+ ?))*/i],
[PR_PUNCTUATION, /^[^\s\w'"]+/],
]), ["css"]);
registerLangHandler(createSimpleLexer([], [
[PR_KEYWORD, /^-?(?:[_a-z]|(?:\\[\da-f]+ ?))(?:[_a-z\d-]|\\(?:\\[\da-f]+ ?))*/i],
]), ["css-kw"]);
registerLangHandler(createSimpleLexer([], [
[PR_STRING, /^[^)"']+/],
]), ["css-str"]);
/* https://github.com/google/code-prettify/blob/master/src/lang-lua.js */
registerLangHandler(createSimpleLexer([
[PR_PLAIN, /^[\t\n\r \xA0]+/, null, "\t\n\r \xA0"],
[PR_STRING, /^(?:"(?:[^"\\]|\\[\s\S])*(?:"|$)|'(?:[^'\\]|\\[\s\S])*(?:'|$))/, null, '"\''],
], [
[PR_COMMENT, /^--(?:\[(=*)\[[\s\S]*?(?:\]\1\]|$)|[^\r\n]*)/],
[PR_STRING, /^\[(=*)\[[\s\S]*?(?:\]\1\]|$)/],
[PR_KEYWORD, /^(?:and|break|do|else|elseif|end|false|for|function|if|in|local|nil|not|or|repeat|return|then|true|until|while)\b/, null],
[PR_LITERAL,
/^[+-]?(?:0x[\da-f]+|(?:(?:\.\d+|\d+(?:\.\d*)?)(?:e[+-]?\d+)?))/i,
],
[PR_PLAIN, /^[a-z_]\w*/i],
[PR_PUNCTUATION, /^[^\w\t\n\r \xA0][^\w\t\n\r \xA0"'\-+=]*/],
]), ["lua"]);
/* https://github.com/googlearchive/code-prettify/blob/master/src/lang-tex.js */
registerLangHandler(createSimpleLexer([
[PR_PLAIN, /^[\t\n\r \xA0]+/, null, "\t\n\r \xA0"],
[PR_COMMENT, /^%[^\r\n]*/, null, "%"],
], [
[PR_KEYWORD, /^\\[a-zA-Z@]+/],
[PR_KEYWORD, /^\\./],
[PR_TYPE, /^[$&]/],
[PR_LITERAL, /[+-]?(?:\.\d+|\d+(?:\.\d*)?)(cm|em|ex|in|pc|pt|bp|mm)/i],
[PR_PUNCTUATION, /^[{}()[\]=]+/],
]), ["latex", "tex"]);
/* https://github.com/googlearchive/code-prettify/blob/master/src/lang-wiki.js */
registerLangHandler(createSimpleLexer([
[PR_PLAIN, /^[\t\n\r \xA0]+/, null, "\t\n\r \xA0"],
[PR_PUNCTUATION, /^[=*~^[\]]+/, null, "=*~^[]"],
], [
["lang-wiki.meta", /(?:^^|\r\n?|\n)(#[a-z]+)\b/],
[PR_LITERAL, /^(?:[A-Z][a-z][a-z0-9]+[A-Z][a-z][a-zA-Z0-9]+)\b/],
["lang-", /^\{\{\{([\s\S]+?)\}\}\}/],
["lang-", /^`([^\r\n`]+)`/],
[PR_STRING, /^https?:\/\/[^/?#\s]*(?:\/[^?#\s]*)?(?:\?[^#\s]*)?(?:#\S*)?/i],
[PR_PLAIN, /^(?:\r\n|[\s\S])[^#=*~^A-Zh{`[\r\n]*/],
]), ["wiki"]);
registerLangHandler(createSimpleLexer([
[PR_KEYWORD, /^#[a-z]+/i, null, "#"],
], []), ["wiki.meta"]);
})();
