查看“MediaWiki:Gadget-code-prettify-prettify.js”的源代码

//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，文件源自https://raw.githubusercontent.com/google/code-prettify/master/src/prettify.js和https://raw.githubusercontent.com/google/code-prettify/master/src/lang-css.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.
 */
var DecorationsT;
var JobT;
var SourceSpansT;
var IN_GLOBAL_SCOPE = false;
var PR;
window["PR_SHOULD_USE_CONTINUATION"] = true;
var prettyPrintOne;
var prettyPrint;
(function() {
    var win = window;
    var FLOW_CONTROL_KEYWORDS = [
        "break,continue,do,else,for,if,return,while"
    ];
    var C_KEYWORDS = [
        FLOW_CONTROL_KEYWORDS,
        "auto,case,char,const,default," + "double,enum,extern,float,goto,inline,int,long,register,short,signed," + "sizeof,static,struct,switch,typedef,union,unsigned,void,volatile"
    ];
    var COMMON_KEYWORDS = [
        C_KEYWORDS,
        "catch,class,delete,false,import," + "new,operator,private,protected,public,this,throw,true,try,typeof"
    ];
    var CPP_KEYWORDS = [
        COMMON_KEYWORDS,
        "alignof,align_union,asm,axiom,bool," + "concept,concept_map,const_cast,constexpr,decltype,delegate," + "dynamic_cast,explicit,export,friend,generic,late_check," + "mutable,namespace,nullptr,property,reinterpret_cast,static_assert," + "static_cast,template,typeid,typename,using,virtual,where"
    ];
    var JAVA_KEYWORDS = [
        COMMON_KEYWORDS,
        "abstract,assert,boolean,byte,extends,finally,final,implements,import," + "instanceof,interface,null,native,package,strictfp,super,synchronized," + "throws,transient"
    ];
    var CSHARP_KEYWORDS = [
        COMMON_KEYWORDS,
        "abstract,as,base,bool,by,byte,checked,decimal,delegate,descending," + "dynamic,event,finally,fixed,foreach,from,group,implicit,in,interface," + "internal,into,is,let,lock,null,object,out,override,orderby,params," + "partial,readonly,ref,sbyte,sealed,stackalloc,string,select,uint,ulong," + "unchecked,unsafe,ushort,var,virtual,where"
    ];
    var 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";
    var JSCRIPT_KEYWORDS = [
        COMMON_KEYWORDS,
        "abstract,async,await,constructor,debugger,enum,eval,export,function," + "get,implements,instanceof,interface,let,null,set,undefined,var,with," + "yield,Infinity,NaN"
    ];
    var 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";
    var 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"
    ];
    var 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"
    ];
    var SH_KEYWORDS = [
        FLOW_CONTROL_KEYWORDS,
        "case,done,elif,esac,eval,fi," + "function,in,local,set,then,until"
    ];
    var ALL_KEYWORDS = [
        CPP_KEYWORDS, CSHARP_KEYWORDS, JAVA_KEYWORDS, JSCRIPT_KEYWORDS, PERL_KEYWORDS, PYTHON_KEYWORDS, RUBY_KEYWORDS, SH_KEYWORDS
    ];
    var C_TYPES = /^(DIR|FILE|vector|(de|priority_)?queue|list|stack|(const_)?iterator|(multi)?(set|map)|bitset|u?(int|float)\d*)\b/;
    var PR_STRING = "str";
    var PR_KEYWORD = "kwd";
    var PR_COMMENT = "com";
    var PR_TYPE = "typ";
    var PR_LITERAL = "lit";
    var PR_PUNCTUATION = "pun";
    var PR_PLAIN = "pln";
    var PR_TAG = "tag";
    var PR_DECLARATION = "dec";
    var PR_SOURCE = "src";
    var PR_ATTRIB_NAME = "atn";
    var PR_ATTRIB_VALUE = "atv";
    var PR_NOCODE = "nocode";
    var REGEXP_PRECEDER_PATTERN = "(?:^^\\.?|[+-]|[!=]=?=?|\\#|%=?|&&?=?|\\(|\\*=?|[+\\-]=|->|\\/=?|::?|<<?=?|>>?>?=?|,|;|\\?|@|\\[|~|{|\\^\\^?=?|\\|\\|?=?|break|case|continue|delete|do|else|finally|instanceof|return|throw|try|typeof)\\s*";

    function combinePrefixPatterns(regexs) {
        var capturedGroupIndex = 0;
        var needToFoldCase = false;
        var ignoreCase = false;
        for (var i = 0, n = regexs.length; i < n; ++i) {
            var 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;
            }
        }
        var escapeCharToCodeUnit = {
            b: 8,
            t: 9,
            n: 10,
            v: 11,
            f: 12,
            r: 13
        };

        function decodeEscape(charsetPart) {
            var cc0 = charsetPart.charCodeAt(0);
            if (cc0 !== 92) {
                return cc0;
            }
            var 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);
            } else {
                return charsetPart.charCodeAt(1);
            }
        }

        function encodeEscape(charCode) {
            if (charCode < 32) {
                return (charCode < 16 ? "\\x0" : "\\x") + charCode.toString(16);
            }
            var ch = String.fromCharCode(charCode);
            return ch === "\\" || ch === "-" || ch === "]" || ch === "^" ? "\\" + ch : ch;
        }

        function caseFoldCharset(charSet) {
            var 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"));
            var ranges = [];
            var inverse = charsetParts[0] === "^";
            var out = ["["];
            if (inverse) {
                out.push("^");
            }
            for (var i = inverse ? 1 : 0, n = charsetParts.length; i < n; ++i) {
                var p = charsetParts[i];
                if (/\\[bdsw]/i.test(p)) {
                    out.push(p);
                } else {
                    var start = decodeEscape(p);
                    var 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(function(a, b) {
                return a[0] - b[0] || b[1] - a[1];
            });
            var consolidatedRanges = [];
            var lastRange = [];
            for (var i = 0; i < ranges.length; ++i) {
                var range = ranges[i];
                if (range[0] <= lastRange[1] + 1) {
                    lastRange[1] = Math.max(lastRange[1], range[1]);
                } else {
                    consolidatedRanges.push(lastRange = range);
                }
            }
            for (var i = 0; i < consolidatedRanges.length; ++i) {
                var 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) {
            var 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"));
            var n = parts.length;
            var capturedGroups = [];
            for (var i = 0, groupIndex = 0; i < n; ++i) {
                var p = parts[i];
                if (p === "(") {
                    ++groupIndex;
                } else if ("\\" === p.charAt(0)) {
                    var decimalValue = +p.substring(1);
                    if (decimalValue) {
                        if (decimalValue <= groupIndex) {
                            capturedGroups[decimalValue] = -1;
                        } else {
                            parts[i] = encodeEscape(decimalValue);
                        }
                    }
                }
            }
            for (var i = 1; i < capturedGroups.length; ++i) {
                if (-1 === capturedGroups[i]) {
                    capturedGroups[i] = ++capturedGroupIndex;
                }
            }
            for (var i = 0, groupIndex = 0; i < n; ++i) {
                var p = parts[i];
                if (p === "(") {
                    ++groupIndex;
                    if (!capturedGroups[groupIndex]) {
                        parts[i] = "(?:";
                    }
                } else if ("\\" === p.charAt(0)) {
                    var decimalValue = +p.substring(1);
                    if (decimalValue && decimalValue <= groupIndex) {
                        parts[i] = "\\" + capturedGroups[decimalValue];
                    }
                }
            }
            for (var i = 0; i < n; ++i) {
                if ("^" === parts[i] && "^" !== parts[i + 1]) {
                    parts[i] = "";
                }
            }
            if (regex.ignoreCase && needToFoldCase) {
                for (var i = 0; i < n; ++i) {
                    var p = parts[i];
                    var ch0 = p.charAt(0);
                    if (p.length >= 2 && ch0 === "[") {
                        parts[i] = caseFoldCharset(p);
                    } else if (ch0 !== "\\") {
                        parts[i] = p.replace(/[a-zA-Z]/g, function(ch) {
                            var cc = ch.charCodeAt(0);
                            return "[" + String.fromCharCode(cc & ~32, cc | 32) + "]";
                        });
                    }
                }
            }
            return parts.join("");
        }
        var rewritten = [];
        for (var i = 0, n = regexs.length; i < n; ++i) {
            var 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) {
        var nocode = /(?:^|\s)nocode(?:\s|$)/;
        var chunks = [];
        var length = 0;
        var spans = [];
        var k = 0;

        function walk(node) {
            var type = node.nodeType;
            if (type == 1) {
                if (nocode.test(node.className)) {
                    return;
                }
                for (var child = node.firstChild; child; child = child.nextSibling) {
                    walk(child);
                }
                var 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) {
                var 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;
        }
        var job = {
            sourceNode: sourceNode,
            pre: 1,
            langExtension: null,
            numberLines: null,
            sourceCode: sourceCode,
            spans: null,
            basePos: basePos,
            decorations: null
        };
        langHandler(job);
        out.push.apply(out, job.decorations);
    }
    var notWs = /\S/;

    function childContentWrapper(element) {
        var wrapper = undefined;
        for (var c = element.firstChild; c; c = c.nextSibling) {
            var 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) {
        var shortcuts = {};
        var tokenizer;
        (function() {
            var allPatterns = shortcutStylePatterns.concat(fallthroughStylePatterns);
            var allRegexs = [];
            var regexKeys = {};
            for (var i = 0, n = allPatterns.length; i < n; ++i) {
                var patternParts = allPatterns[i];
                var shortcutChars = patternParts[3];
                if (shortcutChars) {
                    for (var c = shortcutChars.length; --c >= 0;) {
                        shortcuts[shortcutChars.charAt(c)] = patternParts;
                    }
                }
                var regex = patternParts[1];
                var k = "" + regex;
                if (!regexKeys.hasOwnProperty(k)) {
                    allRegexs.push(regex);
                    regexKeys[k] = null;
                }
            }
            allRegexs.push(/[\0-\uffff]/);
            tokenizer = combinePrefixPatterns(allRegexs);
        })();
        var nPatterns = fallthroughStylePatterns.length;
        var decorate = function(job) {
            var sourceCode = job.sourceCode,
                basePos = job.basePos;
            var sourceNode = job.sourceNode;
            var decorations = [basePos, PR_PLAIN];
            var pos = 0;
            var tokens = sourceCode.match(tokenizer) || [];
            var styleCache = {};
            for (var ti = 0, nTokens = tokens.length; ti < nTokens; ++ti) {
                var token = tokens[ti];
                var style = styleCache[token];
                var match = void 0;
                var isEmbedded;
                if (typeof style === "string") {
                    isEmbedded = false;
                } else {
                    var patternParts = shortcuts[token.charAt(0)];
                    if (patternParts) {
                        match = token.match(patternParts[1]);
                        style = patternParts[0];
                    } else {
                        for (var 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;
                    }
                }
                var tokenStart = pos;
                pos += token.length;
                if (!isEmbedded) {
                    decorations.push(basePos + tokenStart, style);
                } else {
                    var embeddedSource = match[1];
                    var embeddedSourceStart = token.indexOf(embeddedSource);
                    var embeddedSourceEnd = embeddedSourceStart + embeddedSource.length;
                    if (match[2]) {
                        embeddedSourceEnd = token.length - match[2].length;
                        embeddedSourceStart = embeddedSourceEnd - embeddedSource.length;
                    }
                    var 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) {
        var 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]);
        }
        var 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]);
        }
        var regexLiterals = options["regexLiterals"];
        if (regexLiterals) {
            var regexExcls = regexLiterals > 1 ? "" : "\n\r";
            var regexAny = regexExcls ? "." : "[\\S\\s]";
            var 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 + ")")]);
        }
        var types = options["types"];
        if (types) {
            fallthroughStylePatterns.push([PR_TYPE, types]);
        }
        var keywords = ("" + options["keywords"]).replace(/^ | $/g, "");
        if (keywords.length) {
            fallthroughStylePatterns.push([PR_KEYWORD, new RegExp("^(?:" + keywords.replace(/[\s,]+/g, "|") + ")\\b"), null]);
        }
        shortcutStylePatterns.push([PR_PLAIN, /^\s+/, null, " \r\n	 "]);
        var punctuation = "^.[^\\s\\w.$@'\"`/\\\\]*";
        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);
    }
    var decorateSource = sourceDecorator({
        keywords: ALL_KEYWORDS,
        hashComments: true,
        cStyleComments: true,
        multiLineStrings: true,
        regexLiterals: true
    });

    function numberLines(node, startLineNum, isPreformatted) {
        var nocode = /(?:^|\s)nocode(?:\s|$)/;
        var lineBreak = /\r\n?|\n/;
        var document = node.ownerDocument;
        var li = document.createElement("li");
        while (node.firstChild) {
            li.appendChild(node.firstChild);
        }
        var listItems = [li];

        function walk(node) {
            var type = node.nodeType;
            if (type == 1 && !nocode.test(node.className)) {
                if ("br" === node.nodeName) {
                    breakAfter(node);
                    if (node.parentNode) {
                        node.parentNode.removeChild(node);
                    }
                } else {
                    for (var child = node.firstChild; child; child = child.nextSibling) {
                        walk(child);
                    }
                }
            } else if ((type == 3 || type == 4) && isPreformatted) {
                var text = node.nodeValue;
                var match = text.match(lineBreak);
                if (match) {
                    var firstLine = text.substring(0, match.index);
                    node.nodeValue = firstLine;
                    var tail = text.substring(match.index + match[0].length);
                    if (tail) {
                        var parent = node.parentNode;
                        parent.insertBefore(document.createTextNode(tail), node.nextSibling);
                    }
                    breakAfter(node);
                    if (!firstLine) {
                        node.parentNode.removeChild(node);
                    }
                }
            }
        }

        function breakAfter(lineEndNode) {
            while (!lineEndNode.nextSibling) {
                lineEndNode = lineEndNode.parentNode;
                if (!lineEndNode) {
                    return;
                }
            }

            function breakLeftOf(limit, copy) {
                var rightSide = copy ? limit.cloneNode(false) : limit;
                var parent = limit.parentNode;
                if (parent) {
                    var parentClone = breakLeftOf(parent, 1);
                    var next = limit.nextSibling;
                    parentClone.appendChild(rightSide);
                    for (var sibling = next; sibling; sibling = next) {
                        next = sibling.nextSibling;
                        parentClone.appendChild(sibling);
                    }
                }
                return rightSide;
            }
            var copiedListItem = breakLeftOf(lineEndNode.nextSibling, 0);
            for (var parent;
                (parent = copiedListItem.parentNode) && parent.nodeType === 1;) {
                copiedListItem = parent;
            }
            listItems.push(copiedListItem);
        }
        for (var i = 0; i < listItems.length; ++i) {
            walk(listItems[i]);
        }
        if (startLineNum === (startLineNum | 0)) {
            listItems[0].setAttribute("value", startLineNum);
        }
        var ol = document.createElement("ol");
        ol.className = "linenums";
        var offset = Math.max(0, startLineNum - 1 | 0) || 0;
        for (var i = 0, n = listItems.length; i < n; ++i) {
            li = listItems[i];
            li.className = "L" + (i + offset) % 10;
            if (!li.firstChild) {
                li.appendChild(document.createTextNode(" "));
            }
            ol.appendChild(li);
        }
        node.appendChild(ol);
    }

    function recombineTagsAndDecorations(job) {
        var isIE8OrEarlier = /\bMSIE\s(\d+)/.exec(navigator.userAgent);
        isIE8OrEarlier = isIE8OrEarlier && +isIE8OrEarlier[1] <= 8;
        var newlineRe = /\n/g;
        var source = job.sourceCode;
        var sourceLength = source.length;
        var sourceIndex = 0;
        var spans = job.spans;
        var nSpans = spans.length;
        var spanIndex = 0;
        var decorations = job.decorations;
        var nDecorations = decorations.length;
        var decorationIndex = 0;
        decorations[nDecorations] = sourceLength;
        var 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;) {
            var startPos = decorations[i];
            var startDec = decorations[i + 1];
            var 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;
        var sourceNode = job.sourceNode;
        var oldDisplay = "";
        if (sourceNode) {
            oldDisplay = sourceNode.style.display;
            sourceNode.style.display = "none";
        }
        try {
            var decoration = null;
            while (spanIndex < nSpans) {
                var spanStart = spans[spanIndex];
                var spanEnd = spans[spanIndex + 2] || sourceLength;
                var decEnd = decorations[decorationIndex + 2] || sourceLength;
                var end = Math.min(spanEnd, decEnd);
                var textNode = spans[spanIndex + 1];
                var styledText;
                if (textNode.nodeType !== 1 && (styledText = source.substring(sourceIndex, end))) {
                    if (isIE8OrEarlier) {
                        styledText = styledText.replace(newlineRe, "\r");
                    }
                    textNode.nodeValue = styledText;
                    var document = textNode.ownerDocument;
                    var span = document.createElement("span");
                    span.className = decorations[decorationIndex + 1];
                    var 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;
            }
        }
    }
    var langHandlerRegistry = {};

    function registerLangHandler(handler, fileExtensions) {
        for (var i = fileExtensions.length; --i >= 0;) {
            var ext = fileExtensions[i];
            if (!langHandlerRegistry.hasOwnProperty(ext)) {
                langHandlerRegistry[ext] = handler;
            } else if (win["console"]) {
                console["warn"]("cannot override language handler %s", ext);
            }
        }
    }

    function langHandlerForExtension(extension, source) {
        if (!(extension && langHandlerRegistry.hasOwnProperty(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) {
        var opt_langExtension = job.langExtension;
        try {
            var sourceAndSpans = extractSourceSpans(job.sourceNode, job.pre);
            var source = sourceAndSpans.sourceCode;
            job.sourceCode = source;
            job.spans = sourceAndSpans.spans;
            job.basePos = 0;
            langHandlerForExtension(opt_langExtension, source)(job);
            recombineTagsAndDecorations(job);
        } catch (e) {
            if (win["console"]) {
                console["log"](e && e["stack"] || e);
            }
        }
    }

    function $prettyPrintOne(sourceCodeHtml, opt_langExtension, opt_numberLines) {
        var nl = opt_numberLines || false;
        var langExtension = opt_langExtension || null;
        var container = document.createElement("div");
        container.innerHTML = "<pre>" + sourceCodeHtml + "</pre>";
        container = container.firstChild;
        if (nl) {
            numberLines(container, nl, true);
        }
        var 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) {
        var root = opt_root || document.body;
        var doc = root.ownerDocument || document;

        function byTagName(tn) {
            return root.getElementsByTagName(tn);
        }
        var codeSegments = [byTagName("pre"), byTagName("code"), byTagName("xmp")];
        var elements = [];
        for (var i = 0; i < codeSegments.length; ++i) {
            for (var j = 0, n = codeSegments[i].length; j < n; ++j) {
                elements.push(codeSegments[i][j]);
            }
        }
        codeSegments = null;
        var clock = Date;
        if (!clock["now"]) {
            clock = {
                now: function() {
                    return +new Date();
                }
            };
        }
        var k = 0;
        var langExtensionRe = /\blang(?:uage)?-([\w.]+)(?!\S)/;
        var prettyPrintRe = /\bprettyprint\b/;
        var prettyPrintedRe = /\bprettyprinted\b/;
        var preformattedTagNameRe = /pre|xmp/i;
        var codeRe = /^code$/i;
        var preCodeXmpRe = /^(?:pre|code|xmp)$/i;
        var EMPTY = {};

        function doWork() {
            var endTime = win["PR_SHOULD_USE_CONTINUATION"] ? clock["now"]() + 250 : Infinity;
            for (; k < elements.length && clock["now"]() < endTime; k++) {
                var cs = elements[k];
                var attrs = EMPTY; {
                    for (var preceder = cs; preceder = preceder.previousSibling;) {
                        var nt = preceder.nodeType;
                        var value = (nt === 7 || nt === 8) && preceder.nodeValue;
                        if (value ? !/^\??prettify\b/.test(value) : nt !== 3 || /\S/.test(preceder.nodeValue)) {
                            break;
                        }
                        if (value) {
                            attrs = {};
                            value.replace(/\b(\w+)=([\w:.%+-]+)/g, function(_, name, value) {
                                attrs[name] = value;
                            });
                            break;
                        }
                    }
                }
                var className = cs.className;
                if ((attrs !== EMPTY || prettyPrintRe.test(className)) && !prettyPrintedRe.test(className)) {
                    var nested = false;
                    for (var p = cs.parentNode; p; p = p.parentNode) {
                        var tn = p.tagName;
                        if (preCodeXmpRe.test(tn) && p.className && prettyPrintRe.test(p.className)) {
                            nested = true;
                            break;
                        }
                    }
                    if (!nested) {
                        cs.className += " prettyprinted";
                        var langExtension = attrs["lang"];
                        if (!langExtension) {
                            langExtension = className.match(langExtensionRe);
                            var wrapper;
                            if (!langExtension && (wrapper = childContentWrapper(cs)) && codeRe.test(wrapper.tagName)) {
                                langExtension = wrapper.className.match(langExtensionRe);
                            }
                            if (langExtension) {
                                langExtension = langExtension[1];
                            }
                        }
                        var preformatted;
                        if (preformattedTagNameRe.test(cs.tagName)) {
                            preformatted = 1;
                        } else {
                            var currentStyle = cs["currentStyle"];
                            var defaultView = doc.defaultView;
                            var whitespace = currentStyle ? currentStyle["whiteSpace"] : defaultView && defaultView.getComputedStyle ? defaultView.getComputedStyle(cs, null).getPropertyValue("white-space") : 0;
                            preformatted = whitespace && "pre" === whitespace.substring(0, 3);
                        }
                        var 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);
                        }
                        var prettyPrintingJob = {
                            langExtension: langExtension,
                            sourceNode: cs,
                            numberLines: lineNums,
                            pre: preformatted,
                            sourceCode: null,
                            basePos: null,
                            spans: null,
                            decorations: null
                        };
                        applyDecorator(prettyPrintingJob);
                    }
                }
            }
            if (k < elements.length) {
                win.setTimeout(doWork, 250);
            } else if ("function" === typeof opt_whenDone) {
                opt_whenDone();
            }
        }
        doWork();
    }
    var PR = win["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: IN_GLOBAL_SCOPE ? win["prettyPrintOne"] = $prettyPrintOne : prettyPrintOne = $prettyPrintOne,
        prettyPrint: prettyPrint = IN_GLOBAL_SCOPE ? win["prettyPrint"] = $prettyPrint : prettyPrint = $prettyPrint
    };
    var define = win["define"];
    if (typeof define === "function" && define["amd"]) {
        define("google-code-prettify", [], function() {
            return PR;
        });
    }
})();
/**
 * @license
 * Copyright (C) 2009 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.
 */
PR["registerLangHandler"](
    PR["createSimpleLexer"]([
        [
            PR["PR_PLAIN"], /^[ \t\r\n\f]+/, null, " 	\r\n\f"
        ]
    ], [
        [
            PR["PR_STRING"], /^\"(?:[^\n\r\f\\\"]|\\(?:\r\n?|\n|\f)|\\[\s\S])*\"/, null
        ],
        [
            PR["PR_STRING"], /^\'(?:[^\n\r\f\\\']|\\(?:\r\n?|\n|\f)|\\[\s\S])*\'/, null
        ],
        ["lang-css-str", /^url\(([^\)\"\']+)\)/i],
        [
            PR["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["PR_COMMENT"], /^\/\*[^*]*\*+(?:[^\/*][^*]*\*+)*\//
        ],
        [
            PR["PR_COMMENT"], /^(?:<!--|-->)/
        ],
        [
            PR["PR_LITERAL"], /^(?:\d+|\d*\.\d+)(?:%|[a-z]+)?/i
        ],
        [
            PR["PR_LITERAL"], /^#(?:[0-9a-f]{3}){1,2}\b/i
        ],
        [
            PR["PR_PLAIN"], /^-?(?:[_a-z]|(?:\\[\da-f]+ ?))(?:[_a-z\d\-]|\\(?:\\[\da-f]+ ?))*/i
        ],
        [
            PR["PR_PUNCTUATION"], /^[^\s\w\'\"]+/
        ]
    ]), ["css"]);

PR["registerLangHandler"](
    PR["createSimpleLexer"]([], [
        [
            PR["PR_KEYWORD"], /^-?(?:[_a-z]|(?:\\[\da-f]+ ?))(?:[_a-z\d\-]|\\(?:\\[\da-f]+ ?))*/i
        ]
    ]), ["css-kw"]);

PR["registerLangHandler"](
    PR["createSimpleLexer"]([], [
        [
            PR["PR_STRING"], /^[^\)\"\']+/
        ]
    ]), ["css-str"]);