bower_components/google-code-prettify/src/prettify.js - Issue 786953007: npm_modules: Fork bower_components into Polymer 0.4.0 and 0.5.0 versions

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Issue 786953007: npm_modules: Fork bower_components into Polymer 0.4.0 and 0.5.0 versions (Closed) Base URL: https://chromium.googlesource.com/infra/third_party/npm_modules.git@master

Patch Set: Created 5 years, 12 months ago

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diff --git a/bower_components/google-code-prettify/src/prettify.js b/bower_components/google-code-prettify/src/prettify.js

deleted file mode 100644

index 10c9fb73d75268107f8273ebbb83aaae361d2a85..0000000000000000000000000000000000000000

--- a/bower_components/google-code-prettify/src/prettify.js

+++ /dev/null

@@ -1,1655 +0,0 @@

-//

-// 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.

-/**

- * @fileoverview

- * some functions for browser-side pretty printing of code contained in html.

- *

- *

- * For a fairly comprehensive set of languages see the

- * <a href="http://google-code-prettify.googlecode.com/svn/trunk/README.html#langs">README</a>

- * file that came with this source. At a minimum, the lexer should work on a

- * number of languages including C and friends, Java, Python, Bash, SQL, HTML,

- * XML, CSS, Javascript, and Makefiles. It works passably on Ruby, PHP and Awk

- * and a subset of Perl, but, because of commenting conventions, doesn't work on

- * Smalltalk, Lisp-like, or CAML-like languages without an explicit lang class.

- *

- * Usage: <ol>

- * <li> include this source file in an html page via

- * {@code <script type="text/javascript" src="/path/to/prettify.js"></script>}

- * <li> define style rules. See the example page for examples.

- * <li> mark the {@code <pre>} and {@code <code>} tags in your source with

- * {@code class=prettyprint.}

- * You can also use the (html deprecated) {@code <xmp>} tag, but the pretty

- * printer needs to do more substantial DOM manipulations to support that, so

- * some css styles may not be preserved.

- * </ol>

- * That's it. I wanted to keep the API as simple as possible, so there's no

- * need to specify which language the code is in, but if you wish, you can add

- * another class to the {@code <pre>} or {@code <code>} element to specify the

- * language, as in {@code <pre class="prettyprint lang-java">}. Any class that

- * starts with "lang-" followed by a file extension, specifies the file type.

- * See the "lang-*.js" files in this directory for code that implements

- * per-language file handlers.

- *

- * Change log:

- * cbeust, 2006/08/22

- * <blockquote>

- * Java annotations (start with "@") are now captured as literals ("lit")

- * </blockquote>

- * @requires console

- */

-// JSLint declarations

-/*global console, document, navigator, setTimeout, window, define */

-/** @define {boolean} */

-var IN_GLOBAL_SCOPE = true;

-/**

- * Split {@code prettyPrint} into multiple timeouts so as not to interfere with

- * UI events.

- * If set to {@code false}, {@code prettyPrint()} is synchronous.

- */

-window['PR_SHOULD_USE_CONTINUATION'] = true;

-/**

- * Pretty print a chunk of code.

- * @param {string} sourceCodeHtml The HTML to pretty print.

- * @param {string} opt_langExtension The language name to use.

- * Typically, a filename extension like 'cpp' or 'java'.

- * @param {number|boolean} opt_numberLines True to number lines,

- * or the 1-indexed number of the first line in sourceCodeHtml.

- * @return {string} code as html, but prettier

- */

-var prettyPrintOne;

-/**

- * Find all the {@code <pre>} and {@code <code>} tags in the DOM with

- * {@code class=prettyprint} and prettify them.

- *

- * @param {Function} opt_whenDone called when prettifying is done.

- * @param {HTMLElement|HTMLDocument} opt_root an element or document

- * containing all the elements to pretty print.

- * Defaults to {@code document.body}.

- */

-var prettyPrint;

-(function () {

- var win = window;

- // Keyword lists for various languages.

- // We use things that coerce to strings to make them compact when minified

- // and to defeat aggressive optimizers that fold large string constants.

- 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,final,finally,implements,import," +

- "instanceof,interface,null,native,package,strictfp,super,synchronized," +

- "throws,transient"];

- var CSHARP_KEYWORDS = [JAVA_KEYWORDS,

- "as,base,by,checked,decimal,delegate,descending,dynamic,event," +

- "fixed,foreach,from,group,implicit,in,internal,into,is,let," +

- "lock,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,

- "debugger,eval,export,function,get,null,set,undefined,var,with," +

- "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 RUST_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "as,assert,const,copy,drop," +

- "enum,extern,fail,false,fn,impl,let,log,loop,match,mod,move,mut,priv," +

- "pub,pure,ref,self,static,struct,true,trait,type,unsafe,use"];

- 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, JSCRIPT_KEYWORDS, PERL_KEYWORDS,

- PYTHON_KEYWORDS, RUBY_KEYWORDS, SH_KEYWORDS];

- // token style names. correspond to css classes

- /**

- * token style for a string literal

- * @const

- */

- var PR_STRING = 'str';

- /**

- * token style for a keyword

- * @const

- */

- var PR_KEYWORD = 'kwd';

- /**

- * token style for a comment

- * @const

- */

- var PR_COMMENT = 'com';

- /**

- * token style for a type

- * @const

- */

- var PR_TYPE = 'typ';

- /**

- * token style for a literal value. e.g. 1, null, true.

- * @const

- */

- var PR_LITERAL = 'lit';

- /**

- * token style for a punctuation string.

- * @const

- */

- var PR_PUNCTUATION = 'pun';

- /**

- * token style for plain text.

- * @const

- */

- var PR_PLAIN = 'pln';

- /**

- * token style for an sgml tag.

- * @const

- */

- var PR_TAG = 'tag';

- /**

- * token style for a markup declaration such as a DOCTYPE.

- * @const

- */

- var PR_DECLARATION = 'dec';

- /**

- * token style for embedded source.

- * @const

- */

- var PR_SOURCE = 'src';

- /**

- * token style for an sgml attribute name.

- * @const

- */

- var PR_ATTRIB_NAME = 'atn';

- /**

- * token style for an sgml attribute value.

- * @const

- */

- var PR_ATTRIB_VALUE = 'atv';

- /**

- * A class that indicates a section of markup that is not code, e.g. to allow

- * embedding of line numbers within code listings.

- * @const

- */

- var PR_NOCODE = 'nocode';

- /**

- * A set of tokens that can precede a regular expression literal in

- * javascript

- * http://web.archive.org/web/20070717142515/http://www.mozilla.org/js/language/js20/rationale/syntax.html

- * has the full list, but I've removed ones that might be problematic when

- * seen in languages that don't support regular expression literals.

- *

- * Specifically, I've removed any keywords that can't precede a regexp

- * literal in a syntactically legal javascript program, and I've removed the

- * "in" keyword since it's not a keyword in many languages, and might be used

- * as a count of inches.

- *

- * The link above does not accurately describe EcmaScript rules since

- * it fails to distinguish between (a=++/b/i) and (a++/b/i) but it works

- * very well in practice.

- *

- * @private

- * @const

- */

- var REGEXP_PRECEDER_PATTERN = '(?:^^\\.?|[+-]|[!=]=?=?|\\#|%=?|&&?=?|\\(|\\*=?|[+\\-]=|->|\\/=?|::?|<<?=?|>>?>?=?|,|;|\\?|@|\\[|~|{|\\^\\^?=?|\\|\\|?=?|break|case|continue|delete|do|else|finally|instanceof|return|throw|try|typeof)\\s*';

- // CAVEAT: this does not properly handle the case where a regular

- // expression immediately follows another since a regular expression may

- // have flags for case-sensitivity and the like. Having regexp tokens

- // adjacent is not valid in any language I'm aware of, so I'm punting.

- // TODO: maybe style special characters inside a regexp as punctuation.

- /**

- * Given a group of {@link RegExp}s, returns a {@code RegExp} that globally

- * matches the union of the sets of strings matched by the input RegExp.

- * Since it matches globally, if the input strings have a start-of-input

- * anchor (/^.../), it is ignored for the purposes of unioning.

- * @param {Array.<RegExp>} regexs non multiline, non-global regexs.

- * @return {RegExp} a global regex.

- */

- 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': 0xa,

- 'v': 0xb,

- 'f': 0xc,

- 'r': 0xd

- };

- 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 < 0x20) {

- return (charCode < 0x10 ? '\\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)) { // Don't muck with named groups.

- 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 the range might intersect letters, then expand it.

- // This case handling is too simplistic.

- // It does not deal with non-latin case folding.

- // It works for latin source code identifiers though.

- 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]);

- }

- // [[1, 10], [3, 4], [8, 12], [14, 14], [16, 16], [17, 17]]

- // -> [[1, 12], [14, 14], [16, 17]]

- 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) {

- // Split into character sets, escape sequences, punctuation strings

- // like ('(', '(?:', ')', '^'), and runs of characters that do not

- // include any of the above.

- var parts = regex.source.match(

- new RegExp(

- '(?:'

- + '\\[(?:[^\\x5C\\x5D]|\\\\[\\s\\S])*\\]' // a character set

- + '|\\\\u[A-Fa-f0-9]{4}' // a unicode escape

- + '|\\\\x[A-Fa-f0-9]{2}' // a hex escape

- + '|\\\\[0-9]+' // a back-reference or octal escape

- + '|\\\\[^ux0-9]' // other escape sequence

- + '|\\(\\?[:!=]' // start of a non-capturing group

- + '|[\$\$\\^]' // start/end of a group, or line start

- + '|[^\\x5B\\x5C\$\$\\^]+' // run of other characters

- + ')',

- 'g'));

- var n = parts.length;

- // Maps captured group numbers to the number they will occupy in

- // the output or to -1 if that has not been determined, or to

- // undefined if they need not be capturing in the output.

- var capturedGroups = [];

- // Walk over and identify back references to build the capturedGroups

- // mapping.

- for (var i = 0, groupIndex = 0; i < n; ++i) {

- var p = parts[i];

- if (p === '(') {

- // groups are 1-indexed, so max group index is count of '('

- ++groupIndex;

- } else if ('\\' === p.charAt(0)) {

- var decimalValue = +p.substring(1);

- if (decimalValue) {

- if (decimalValue <= groupIndex) {

- capturedGroups[decimalValue] = -1;

- } else {

- // Replace with an unambiguous escape sequence so that

- // an octal escape sequence does not turn into a backreference

- // to a capturing group from an earlier regex.

- parts[i] = encodeEscape(decimalValue);

- }

- // Renumber groups and reduce capturing groups to non-capturing groups

- // where possible.

- 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];

- }

- // Remove any prefix anchors so that the output will match anywhere.

- // ^^ really does mean an anchored match though.

- for (var i = 0; i < n; ++i) {

- if ('^' === parts[i] && '^' !== parts[i + 1]) { parts[i] = ''; }

- }

- // Expand letters to groups to handle mixing of case-sensitive and

- // case-insensitive patterns if necessary.

- 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 !== '\\') {

- // TODO: handle letters in numeric escapes.

- 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');

- }

- /**

- * Split markup into a string of source code and an array mapping ranges in

- * that string to the text nodes in which they appear.

- *

- *

- * The HTML DOM structure:

- * <pre>

- * (Element "p"

- * (Element "b"

- * (Text "print ")) ; #1

- * (Text "'Hello '") ; #2

- * (Element "br") ; #3

- * (Text " + 'World';")) ; #4

- * </pre>

- *

- * corresponds to the HTML

- * {@code print 'Hello ' + 'World';}.

- *

- *

- * It will produce the output:

- * <pre>

- * {

- * sourceCode: "print 'Hello '\n + 'World';",

- * // 1 2

- * // 012345678901234 5678901234567

- * spans: [0, #1, 6, #2, 14, #3, 15, #4]

- * }

- * </pre>

- *

- * where #1 is a reference to the {@code "print "} text node above, and so

- * on for the other text nodes.

- *

- *

- *

- * The {@code} spans array is an array of pairs. Even elements are the start

- * indices of substrings, and odd elements are the text nodes (or BR elements)

- * that contain the text for those substrings.

- * Substrings continue until the next index or the end of the source.

- *

- *

- * @param {Node} node an HTML DOM subtree containing source-code.

- * @param {boolean} isPreformatted true if white-space in text nodes should

- * be considered significant.

- * @return {Object} source code and the text nodes in which they occur.

- */

- 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) { // Element

- 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) { // Text

- var text = node.nodeValue;

- if (text.length) {

- if (!isPreformatted) {

- text = text.replace(/[ \t\r\n]+/g, ' ');

- } else {

- text = text.replace(/\r\n?/g, '\n'); // Normalize newlines.

- }

- // TODO: handle tabs here?

- 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

- };

- }

- /**

- * Apply the given language handler to sourceCode and add the resulting

- * decorations to out.

- * @param {number} basePos the index of sourceCode within the chunk of source

- * whose decorations are already present on out.

- */

- function appendDecorations(basePos, sourceCode, langHandler, out) {

- if (!sourceCode) { return; }

- var job = {

- sourceCode: sourceCode,

- basePos: basePos

- };

- langHandler(job);

- out.push.apply(out, job.decorations);

- }

- var notWs = /\S/;

- /**

- * Given an element, if it contains only one child element and any text nodes

- * it contains contain only space characters, return the sole child element.

- * Otherwise returns undefined.

- *

- * This is meant to return the CODE element in {@code <pre><code ...>} when

- * there is a single child element that contains all the non-space textual

- * content, but not to return anything where there are multiple child elements

- * as in {@code <pre><code>...</code><code>...</code></pre>} or when there

- * is textual content.

- */

- function childContentWrapper(element) {

- var wrapper = undefined;

- for (var c = element.firstChild; c; c = c.nextSibling) {

- var type = c.nodeType;

- wrapper = (type === 1) // Element Node

- ? (wrapper ? element : c)

- : (type === 3) // Text Node

- ? (notWs.test(c.nodeValue) ? element : wrapper)

- : wrapper;

- }

- return wrapper === element ? undefined : wrapper;

- }

- /** Given triples of [style, pattern, context] returns a lexing function,

- * The lexing function interprets the patterns to find token boundaries and

- * returns a decoration list of the form

- * [index_0, style_0, index_1, style_1, ..., index_n, style_n]

- * where index_n is an index into the sourceCode, and style_n is a style

- * constant like PR_PLAIN. index_n-1 <= index_n, and style_n-1 applies to

- * all characters in sourceCode[index_n-1:index_n].

- *

- * The stylePatterns is a list whose elements have the form

- * [style : string, pattern : RegExp, DEPRECATED, shortcut : string].

- *

- * Style is a style constant like PR_PLAIN, or can be a string of the

- * form 'lang-FOO', where FOO is a language extension describing the

- * language of the portion of the token in $1 after pattern executes.

- * E.g., if style is 'lang-lisp', and group 1 contains the text

- * '(hello (world))', then that portion of the token will be passed to the

- * registered lisp handler for formatting.

- * The text before and after group 1 will be restyled using this decorator

- * so decorators should take care that this doesn't result in infinite

- * recursion. For example, the HTML lexer rule for SCRIPT elements looks

- * something like ['lang-js', /<[s]cript>(.+?)<\/script>/]. This may match

- * '<script>foo()<\/script>', which would cause the current decorator to

- * be called with '<script>' which would not match the same rule since

- * group 1 must not be empty, so it would be instead styled as PR_TAG by

- * the generic tag rule. The handler registered for the 'js' extension would

- * then be called with 'foo()', and finally, the current decorator would

- * be called with '<\/script>' which would not match the original rule and

- * so the generic tag rule would identify it as a tag.

- *

- * Pattern must only match prefixes, and if it matches a prefix, then that

- * match is considered a token with the same style.

- *

- * Context is applied to the last non-whitespace, non-comment token

- * recognized.

- *

- * Shortcut is an optional string of characters, any of which, if the first

- * character, gurantee that this pattern and only this pattern matches.

- *

- * @param {Array} shortcutStylePatterns patterns that always start with

- * a known character. Must have a shortcut string.

- * @param {Array} fallthroughStylePatterns patterns that will be tried in

- * order if the shortcut ones fail. May have shortcuts.

- *

- * @return {function (Object)} a

- * function that takes source code and returns a list of decorations.

- */

- 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;

- /**

- * Lexes job.sourceCode and produces an output array job.decorations of

- * style classes preceded by the position at which they start in

- * job.sourceCode in order.

- *

- * @param {Object} job an object like <pre>{

- * sourceCode: {string} sourceText plain text,

- * basePos: {int} position of job.sourceCode in the larger chunk of

- * sourceCode.

- * }</pre>

- */

- var decorate = function (job) {

- var sourceCode = job.sourceCode, basePos = job.basePos;

- /** Even entries are positions in source in ascending order. Odd enties

- * are style markers (e.g., PR_COMMENT) that run from that position until

- * the end.

- * @type {Array.<number|string>}

- */

- var decorations = [basePos, PR_PLAIN];

- var pos = 0; // index into sourceCode

- 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) { // make sure that we make progress

- 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 { // Treat group 1 as an embedded block of source code.

- var embeddedSource = match[1];

- var embeddedSourceStart = token.indexOf(embeddedSource);

- var embeddedSourceEnd = embeddedSourceStart + embeddedSource.length;

- if (match[2]) {

- // If embeddedSource can be blank, then it would match at the

- // beginning which would cause us to infinitely recurse on the

- // entire token, so we catch the right context in match[2].

- embeddedSourceEnd = token.length - match[2].length;

- embeddedSourceStart = embeddedSourceEnd - embeddedSource.length;

- }

- var lang = style.substring(5);

- // Decorate the left of the embedded source

- appendDecorations(

- basePos + tokenStart,

- token.substring(0, embeddedSourceStart),

- decorate, decorations);

- // Decorate the embedded source

- appendDecorations(

- basePos + tokenStart + embeddedSourceStart,

- embeddedSource,

- langHandlerForExtension(lang, embeddedSource),

- decorations);

- // Decorate the right of the embedded section

- appendDecorations(

- basePos + tokenStart + embeddedSourceEnd,

- token.substring(embeddedSourceEnd),

- decorate, decorations);

- }

- job.decorations = decorations;

- };

- return decorate;

- }

- /** returns a function that produces a list of decorations from source text.

- *

- * This code treats ", ', and ` as string delimiters, and \ as a string

- * escape. It does not recognize perl's qq() style strings.

- * It has no special handling for double delimiter escapes as in basic, or

- * the tripled delimiters used in python, but should work on those regardless

- * although in those cases a single string literal may be broken up into

- * multiple adjacent string literals.

- *

- * It recognizes C, C++, and shell style comments.

- *

- * @param {Object} options a set of optional parameters.

- * @return {function (Object)} a function that examines the source code

- * in the input job and builds the decoration list.

- */

- function sourceDecorator(options) {

- var shortcutStylePatterns = [], fallthroughStylePatterns = [];

- if (options['tripleQuotedStrings']) {

- // '''multi-line-string''', 'single-line-string', and double-quoted

- shortcutStylePatterns.push(

- [PR_STRING, /^(?:\'\'\'(?:[^\'\\]|\\[\s\S]|\'{1,2}(?=[^\']))*(?:\'\'\'|$)|\"\"\"(?:[^\"\\]|\\[\s\S]|\"{1,2}(?=[^\"]))*(?:\"\"\"|$)|\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$))/,

- null, '\'"']);

- } else if (options['multiLineStrings']) {

- // 'multi-line-string', "multi-line-string"

- shortcutStylePatterns.push(

- [PR_STRING, /^(?:\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$)|\`(?:[^\\\`]|\\[\s\S])*(?:\`|$))/,

- null, '\'"`']);

- } else {

- // 'single-line-string', "single-line-string"

- shortcutStylePatterns.push(

- [PR_STRING,

- /^(?:\'(?:[^\\\'\r\n]|\\.)*(?:\'|$)|\"(?:[^\\\"\r\n]|\\.)*(?:\"|$))/,

- null, '"\'']);

- }

- if (options['verbatimStrings']) {

- // verbatim-string-literal production from the C# grammar. See issue 93.

- fallthroughStylePatterns.push(

- [PR_STRING, /^@\"(?:[^\"]|\"\")*(?:\"|$)/, null]);

- }

- var hc = options['hashComments'];

- if (hc) {

- if (options['cStyleComments']) {

- if (hc > 1) { // multiline hash comments

- shortcutStylePatterns.push(

- [PR_COMMENT, /^#(?:##(?:[^#]|#(?!##))*(?:###|$)|.*)/, null, '#']);

- } else {

- // Stop C preprocessor declarations at an unclosed open comment

- shortcutStylePatterns.push(

- null, '#']);

- }

- // #include <stdio.h>

- 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) {

- /**

- * @const

- */

- var regexExcls = regexLiterals > 1

- ? '' // Multiline regex literals

- : '\n\r';

- /**

- * @const

- */

- var regexAny = regexExcls ? '.' : '[\\S\\s]';

- /**

- * @const

- */

- var REGEX_LITERAL = (

- // A regular expression literal starts with a slash that is

- // not followed by * or / so that it is not confused with

- // comments.

- '/(?=[^/*' + regexExcls + '])'

- // and then contains any number of raw characters,

- + '(?:[^/\\x5B\\x5C' + regexExcls + ']'

- // escape sequences (\x5C),

- + '|\\x5C' + regexAny

- // or non-nesting character sets (\x5B\x5D);

- + '|\\x5B(?:[^\\x5C\\x5D' + regexExcls + ']'

- + '|\\x5C' + regexAny + ')*(?:\\x5D|$))+'

- // finally closed by a /.

- + '/');

- 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\t\xA0']);

- var punctuation =

- // The Bash man page says

- // A word is a sequence of characters considered as a single

- // unit by GRUB. Words are separated by metacharacters,

- // which are the following plus space, tab, and newline: { }

- // | & $ ; < >

- // ...

- // A word beginning with # causes that word and all remaining

- // characters on that line to be ignored.

- // which means that only a '#' after /(?:^|[{}|&$;<>\s])/ starts a

- // comment but empirically

- // $ echo {#}

- // {#}

- // $ echo \$#

- // $#

- // $ echo }#

- // }#

- // so /(?:^|[|&;<>\s])/ is more appropriate.

- // http://gcc.gnu.org/onlinedocs/gcc-2.95.3/cpp_1.html#SEC3

- // suggests that this definition is compatible with a

- // default mode that tries to use a single token definition

- // to recognize both bash/python style comments and C

- // preprocessor directives.

- // This definition of punctuation does not include # in the list of

- // follow-on exclusions, so # will not be broken before if preceeded

- // by a punctuation character. We could try to exclude # after

- // [|&;<>] but that doesn't seem to cause many major problems.

- // If that does turn out to be a problem, we should change the below

- // when hc is truthy to include # in the run of punctuation characters

- // only when not followint [|&;<>].

- '^.[^\\s\\w.$@\'"`/\\\\]*';

- if (options['regexLiterals']) {

- punctuation += '(?!\s*\/)';

- }

- fallthroughStylePatterns.push(

- // TODO(mikesamuel): recognize non-latin letters and numerals in idents

- [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(

- '^(?:'

- // A hex number

- + '0x[a-f0-9]+'

- // or an octal or decimal number,

- + '|(?:\\d(?:_\\d+)*\\d*(?:\\.\\d*)?|\\.\\d\\+)'

- // possibly in scientific notation

- + '(?:e[+\\-]?\\d+)?'

- + ')'

- // with an optional modifier like UL for unsigned long

- + '[a-z]*', 'i'),

- null, '0123456789'],

- // Don't treat escaped quotes in bash as starting strings.

- // See issue 144.

- [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

- });

- /**

- * Given a DOM subtree, wraps it in a list, and puts each line into its own

- * list item.

- *

- * @param {Node} node modified in place. Its content is pulled into an

- * HTMLOListElement, and each line is moved into a separate list item.

- * This requires cloning elements, so the input might not have unique

- * IDs after numbering.

- * @param {boolean} isPreformatted true iff white-space in text nodes should

- * be treated as significant.

- */

- function numberLines(node, opt_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);

- }

- // An array of lines. We split below, so this is initialized to one

- // un-split line.

- var listItems = [li];

- function walk(node) {

- var type = node.nodeType;

- if (type == 1 && !nocode.test(node.className)) { // Element

- if ('br' === node.nodeName) {

- breakAfter(node);

- // Discard the since it is now flush against a </LI>.

- 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) { // Text

- 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) {

- // Don't leave blank text nodes in the DOM.

- node.parentNode.removeChild(node);

- }

- // Split a line after the given node.

- function breakAfter(lineEndNode) {

- // If there's nothing to the right, then we can skip ending the line

- // here, and move root-wards since splitting just before an end-tag

- // would require us to create a bunch of empty copies.

- while (!lineEndNode.nextSibling) {

- lineEndNode = lineEndNode.parentNode;

- if (!lineEndNode) { return; }

- }

- function breakLeftOf(limit, copy) {

- // Clone shallowly if this node needs to be on both sides of the break.

- var rightSide = copy ? limit.cloneNode(false) : limit;

- var parent = limit.parentNode;

- if (parent) {

- // We clone the parent chain.

- // This helps us resurrect important styling elements that cross lines.

- // E.g. in Foo Bar

- // should be rewritten to <li>Foo</li><li>Bar</li>.

- var parentClone = breakLeftOf(parent, 1);

- // Move the clone and everything to the right of the original

- // onto the cloned parent.

- 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);

- // Walk the parent chain until we reach an unattached LI.

- for (var parent;

- // Check nodeType since IE invents document fragments.

- (parent = copiedListItem.parentNode) && parent.nodeType === 1;) {

- copiedListItem = parent;

- }

- // Put it on the list of lines for later processing.

- listItems.push(copiedListItem);

- }

- // Split lines while there are lines left to split.

- for (var i = 0; // Number of lines that have been split so far.

- i < listItems.length; // length updated by breakAfter calls.

- ++i) {

- walk(listItems[i]);

- }

- // Make sure numeric indices show correctly.

- if (opt_startLineNum === (opt_startLineNum|0)) {

- listItems[0].setAttribute('value', opt_startLineNum);

- }

- var ol = document.createElement('ol');

- ol.className = 'linenums';

- var offset = Math.max(0, ((opt_startLineNum - 1 /* zero index */)) | 0) || 0;

- for (var i = 0, n = listItems.length; i < n; ++i) {

- li = listItems[i];

- // Stick a class on the LIs so that stylesheets can

- // color odd/even rows, or any other row pattern that

- // is co-prime with 10.

- li.className = 'L' + ((i + offset) % 10);

- if (!li.firstChild) {

- li.appendChild(document.createTextNode('\xA0'));

- }

- ol.appendChild(li);

- }

- node.appendChild(ol);

- }

- /**

- * Breaks {@code job.sourceCode} around style boundaries in

- * {@code job.decorations} and modifies {@code job.sourceNode} in place.

- * @param {Object} job like <pre>{

- * sourceCode: {string} source as plain text,

- * sourceNode: {HTMLElement} the element containing the source,

- * spans: {Array.<number|Node>} alternating span start indices into source

- * and the text node or element (e.g. {@code }) corresponding to that

- * span.

- * decorations: {Array.<number|string} an array of style classes preceded

- * by the position at which they start in job.sourceCode in order

- * }</pre>

- * @private

- */

- 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;

- // Index into source after the last code-unit recombined.

- var sourceIndex = 0;

- var spans = job.spans;

- var nSpans = spans.length;

- // Index into spans after the last span which ends at or before sourceIndex.

- var spanIndex = 0;

- var decorations = job.decorations;

- var nDecorations = decorations.length;

- // Index into decorations after the last decoration which ends at or before

- // sourceIndex.

- var decorationIndex = 0;

- // Remove all zero-length decorations.

- decorations[nDecorations] = sourceLength;

- var decPos, i;

- for (i = decPos = 0; i < nDecorations;) {

- if (decorations[i] !== decorations[i + 2]) {

- decorations[decPos++] = decorations[i++];

- } else {

- i += 2;

- }

- nDecorations = decPos;

- // Simplify decorations.

- for (i = decPos = 0; i < nDecorations;) {

- var startPos = decorations[i];

- // Conflate all adjacent decorations that use the same style.

- 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 // Don't muck with s or <LI>s

- // Don't introduce spans around empty text nodes.

- && (styledText = source.substring(sourceIndex, end))) {

- // This may seem bizarre, and it is. Emitting LF on IE causes the

- // code to display with spaces instead of line breaks.

- // Emitting Windows standard issue linebreaks (CRLF) causes a blank

- // space to appear at the beginning of every line but the first.

- // Emitting an old Mac OS 9 line separator makes everything spiffy.

- 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) { // Split off a text node.

- spans[spanIndex + 1] = textNode

- // TODO: Possibly optimize by using '' if there's no flicker.

- = 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;

- }

- /** Maps language-specific file extensions to handlers. */

- var langHandlerRegistry = {};

- /** Register a language handler for the given file extensions.

- * @param {function (Object)} handler a function from source code to a list

- * of decorations. Takes a single argument job which describes the

- * state of the computation. The single parameter has the form

- * {@code {

- * sourceCode: {string} as plain text.

- * decorations: {Array.<number|string>} an array of style classes

- * preceded by the position at which they start in

- * job.sourceCode in order.

- * The language handler should assigned this field.

- * basePos: {int} the position of source in the larger source chunk.

- * All positions in the output decorations array are relative

- * to the larger source chunk.

- * } }

- * @param {Array.<string>} fileExtensions

- */

- 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))) {

- // Treat it as markup if the first non whitespace character is a < and

- // the last non-whitespace character is a >.

- 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]*?(?:-\->|$)/],

- // Unescaped content in an unknown language

- ['lang-', /^<\?([\s\S]+?)(?:\?>|$)/],

- ['lang-', /^<%([\s\S]+?)(?:%>|$)/],

- [PR_PUNCTUATION, /^(?:<[%?]|[%?]>)/],

- ['lang-', /^<xmp\b[^>]*>([\s\S]+?)<\/xmp\b[^>]*>/i],

- // Unescaped content in javascript. (Or possibly vbscript).

- ['lang-js', /^<script\b[^>]*>([\s\S]*?)(<\/script\b[^>]*>)/i],

- // Contains unescaped stylesheet content

- ['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, ' \t\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 // multiline regex literals

- }), ['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']);

- registerLangHandler(sourceDecorator({

- 'keywords': COFFEE_KEYWORDS,

- 'hashComments': 3, // ### style block comments

- 'cStyleComments': true,

- 'multilineStrings': true,

- 'tripleQuotedStrings': true,

- 'regexLiterals': true

- }), ['coffee']);

- registerLangHandler(sourceDecorator({

- 'keywords': RUST_KEYWORDS,

- 'cStyleComments': true,

- 'multilineStrings': true

- }), ['rc', 'rs', 'rust']);

- registerLangHandler(

- createSimpleLexer([], [[PR_STRING, /^[\s\S]+/]]), ['regex']);

- function applyDecorator(job) {

- var opt_langExtension = job.langExtension;

- try {

- // Extract tags, and convert the source code to plain text.

- var sourceAndSpans = extractSourceSpans(job.sourceNode, job.pre);

- /** Plain text. @type {string} */

- var source = sourceAndSpans.sourceCode;

- job.sourceCode = source;

- job.spans = sourceAndSpans.spans;

- job.basePos = 0;

- // Apply the appropriate language handler

- langHandlerForExtension(opt_langExtension, source)(job);

- // Integrate the decorations and tags back into the source code,

- // modifying the sourceNode in place.

- recombineTagsAndDecorations(job);

- } catch (e) {

- if (win['console']) {

- console['log'](e && e['stack'] || e);

- }

- /**

- * Pretty print a chunk of code.

- * @param sourceCodeHtml {string} The HTML to pretty print.

- * @param opt_langExtension {string} The language name to use.

- * Typically, a filename extension like 'cpp' or 'java'.

- * @param opt_numberLines {number|boolean} True to number lines,

- * or the 1-indexed number of the first line in sourceCodeHtml.

- */

- function $prettyPrintOne(sourceCodeHtml, opt_langExtension, opt_numberLines) {

- var container = document.createElement('div');

- // This could cause images to load and onload listeners to fire.

- // E.g. <img onerror="alert(1337)" src="nosuchimage.png">.

- // We assume that the inner HTML is from a trusted source.

- // The pre-tag is required for IE8 which strips newlines from innerHTML

- // when it is injected into a <pre> tag.

- // http://stackoverflow.com/questions/451486/pre-tag-loses-line-breaks-when-setting-innerhtml-in-ie

- // http://stackoverflow.com/questions/195363/inserting-a-newline-into-a-pre-tag-ie-javascript

- container.innerHTML = '<pre>' + sourceCodeHtml + '</pre>';

- container = container.firstChild;

- if (opt_numberLines) {

- numberLines(container, opt_numberLines, true);

- }

- var job = {

- langExtension: opt_langExtension,

- numberLines: opt_numberLines,

- sourceNode: container,

- pre: 1

- };

- applyDecorator(job);

- return container.innerHTML;

- }

- /**

- * Find all the {@code <pre>} and {@code <code>} tags in the DOM with

- * {@code class=prettyprint} and prettify them.

- *

- * @param {Function} opt_whenDone called when prettifying is done.

- * @param {HTMLElement|HTMLDocument} opt_root an element or document

- * containing all the elements to pretty print.

- * Defaults to {@code document.body}.

- */

- function $prettyPrint(opt_whenDone, opt_root) {

- var root = opt_root || document.body;

- var doc = root.ownerDocument || document;

- function byTagName(tn) { return root.getElementsByTagName(tn); }

- // fetch a list of nodes to rewrite

- 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); } };

- }

- // The loop is broken into a series of continuations to make sure that we

- // don't make the browser unresponsive when rewriting a large page.

- var k = 0;

- var prettyPrintingJob;

- 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 /* ms */ :

- Infinity);

- for (; k < elements.length && clock['now']() < endTime; k++) {

- var cs = elements[k];

- // Look for a preceding comment like

- // <?prettify lang="..." linenums="..."?>

- var attrs = EMPTY;

- {

- for (var preceder = cs; (preceder = preceder.previousSibling);) {

- var nt = preceder.nodeType;

- // <?foo?> is parsed by HTML 5 to a comment node (8)

- // like , but in XML is a processing instruction

- var value = (nt === 7 || nt === 8) && preceder.nodeValue;

- if (value

- ? !/^\??prettify\b/.test(value)

- : (nt !== 3 || /\S/.test(preceder.nodeValue))) {

- // Skip over white-space text nodes but not others.

- 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))

- // Don't redo this if we've already done it.

- // This allows recalling pretty print to just prettyprint elements

- // that have been added to the page since last call.

- && !prettyPrintedRe.test(className)) {

- // make sure this is not nested in an already prettified element

- 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) {

- // Mark done. If we fail to prettyprint for whatever reason,

- // we shouldn't try again.

- cs.className += ' prettyprinted';

- // If the classes includes a language extensions, use it.

- // Language extensions can be specified like

- // <pre class="prettyprint lang-cpp">

- // the language extension "cpp" is used to find a language handler

- // as passed to PR.registerLangHandler.

- // HTML5 recommends that a language be specified using "language-"

- // as the prefix instead. Google Code Prettify supports both.

- // http://dev.w3.org/html5/spec-author-view/the-code-element.html

- var langExtension = attrs['lang'];

- if (!langExtension) {

- langExtension = className.match(langExtensionRe);

- // Support <pre class="prettyprint"><code class="language-c">

- 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);

- }

- // Look for a class like linenums or linenums:<n> where <n> is the

- // 1-indexed number of the first line.

- 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); }

- // do the pretty printing

- prettyPrintingJob = {

- langExtension: langExtension,

- sourceNode: cs,

- numberLines: lineNums,

- pre: preformatted

- };

- applyDecorator(prettyPrintingJob);

- }

- if (k < elements.length) {

- // finish up in a continuation

- setTimeout(doWork, 250);

- } else if ('function' === typeof opt_whenDone) {

- opt_whenDone();

- }

- doWork();

- }

- /**

- * Contains functions for creating and registering new language handlers.

- * @type {Object}

- */

- 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)

- };

- // Make PR available via the Asynchronous Module Definition (AMD) API.

- // Per https://github.com/amdjs/amdjs-api/wiki/AMD:

- // The Asynchronous Module Definition (AMD) API specifies a

- // mechanism for defining modules such that the module and its

- // dependencies can be asynchronously loaded.

- // ...

- // To allow a clear indicator that a global define function (as

- // needed for script src browser loading) conforms to the AMD API,

- // any global define function SHOULD have a property called "amd"

- // whose value is an object. This helps avoid conflict with any

- // other existing JavaScript code that could have defined a define()

- // function that does not conform to the AMD API.

- if (typeof define === "function" && define['amd']) {

- define("google-code-prettify", [], function () {

- return PR;

- });

- }

-})();