diff --git a/js/core/highlight.js b/js/core/highlight.js index 88fa0dadc5..fac56a777d 100644 --- a/js/core/highlight.js +++ b/js/core/highlight.js @@ -1,46 +1,43 @@ - // Module core/highlight // Does syntax highlighting to all pre and code that have a class of "highlight" - -// A potential improvement would be to call cb() immediately and benefit from the asynchronous -// ability of prettyPrint() (but only call msg.pub() in the callback to remain accurate as to -// the end of processing) - +// An improvement would be to use web workers to do the highlighting. +"use strict"; define( - ["text!core/css/highlight.css", "google-code-prettify"], - function (css, PR) { - return { - run: function (conf, doc, cb, msg) { - msg.pub("start", "core/highlight"); + [ + "core/utils", + "highlight", + "text!highlightStyles/github.css", + ], + function(utils, hljs, ghCss) { + // Opportunistically insert the style into the head to reduce FOUC. + var codeStyle = document.createElement("style"); + codeStyle.textContent = ghCss; + var swapStyleOwner = utils.makeOwnerSwapper(codeStyle); + swapStyleOwner(document, document.head); + return { + run: function(conf, doc, cb, msg) { + // Nothing to do + if (conf.noHighlightCSS) { + return cb(); + } + + if (codeStyle.ownerDocument !== doc) { + swapStyleOwner(doc, doc.head); + } - // fix old classes - var oldies = "sh_css sh_html sh_javascript sh_javascript_dom sh_xml".split(" "); - for (var i = 0, n = oldies.length; i < n; i++) { - var old = oldies[i]; - $("." + old).each(function () { - $(this).removeClass(old).addClass("highlight"); - msg.pub("warn", "Old highlighting class '" + old + "', use 'highlight' instead."); - }); - } + if (doc.querySelector("highlight")) { + msg.pub("warn", "pre elements don't need a 'highlight' class anymore."); + } - // prettify - var $highs = $("pre.highlight, code.highlight") - , done = function () { - msg.pub("end", "core/highlight"); - cb(); - } - ; - if ($highs.length) { - if (!conf.noHighlightCSS) { - $(doc).find("head link").first().before($("").text(css)); - } - $highs.addClass("prettyprint"); - PR.prettyPrint(done); - } - else { - done(); - } - } - }; - } + Array + .from( + doc.querySelectorAll("pre") + ) + .forEach(function(element) { + hljs.highlightBlock(element); + }); + cb(); + } + }; + } ); diff --git a/js/google-code-prettify.js b/js/google-code-prettify.js deleted file mode 100644 index fccf4f5289..0000000000 --- a/js/google-code-prettify.js +++ /dev/null @@ -1,1655 +0,0 @@ -// 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. - - -/** - * @fileoverview - * some functions for browser-side pretty printing of code contained in html. - * - *
- * For a fairly comprehensive set of languages see the - * README - * 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:
} and {@code } tags in your source with
- * {@code class=prettyprint.}
- * You can also use the (html deprecated) {@code } tag, but the pretty
- * printer needs to do more substantial DOM manipulations to support that, so
- * some css styles may not be preserved.
- *
} or {@code } element to specify the
- * language, as in {@code }. 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
- *
- * Java annotations (start with "@") are now captured as literals ("lit")
- *
- * @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 } and {@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 = [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,
- "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];
- var C_TYPES = /^(DIR|FILE|vector|(de|priority_)?queue|list|stack|(const_)?iterator|(multi)?(set|map)|bitset|u?(int|float)\d*)\b/;
-
- // 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.} 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:
- *
- * (Element "p"
- * (Element "b"
- * (Text "print ")) ; #1
- * (Text "'Hello '") ; #2
- * (Element "br") ; #3
- * (Text " + 'World';")) ; #4
- *
- *
- * corresponds to the HTML
- * {@code
print 'Hello '
+ 'World';
}.
- *
- *
- * It will produce the output:
- *
- * {
- * sourceCode: "print 'Hello '\n + 'World';",
- * // 1 2
- * // 012345678901234 5678901234567
- * spans: [0, #1, 6, #2, 14, #3, 15, #4]
- * }
- *
- *
- * 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
} 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 ...
...
} 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
- * '