| // 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. |
| * |
| * 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 decent subset of Perl, but, |
| * because of commenting conventions, doesn't work on Smalltalk, Lisp-like, or |
| * CAML-like languages. |
| * |
| * If there's a language not mentioned here, then I don't know it, and don't |
| * know whether it works. If it has a C-like, Bash-like, or XML-like syntax |
| * then it should work passably. |
| * |
| * Usage: |
| * 1) include this source file in an html page via |
| * <script type="text/javascript" src="/path/to/prettify.js"></script> |
| * 2) define style rules. See the example page for examples. |
| * 3) mark the <pre> and <code> tags in your source with class=prettyprint. |
| * You can also use the (html deprecated) <xmp> tag, but the pretty printer |
| * needs to do more substantial DOM manipulations to support that, so some |
| * css styles may not be preserved. |
| * 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. |
| * |
| * Change log: |
| * cbeust, 2006/08/22 |
| * Java annotations (start with "@") are now captured as literals ("lit") |
| */ |
| |
| // JSLint declarations |
| /*global console, document, navigator, setTimeout, window */ |
| |
| /** |
| * Split {@code prettyPrint} into multiple timeouts so as not to interfere with |
| * UI events. |
| * If set to {@code false}, {@code prettyPrint()} is synchronous. |
| */ |
| var PR_SHOULD_USE_CONTINUATION = true; |
| |
| /** the number of characters between tab columns */ |
| var PR_TAB_WIDTH = 8; |
| |
| /** Walks the DOM returning a properly escaped version of innerHTML. |
| * @param {Node} node |
| * @param {Array.<string>} out output buffer that receives chunks of HTML. |
| */ |
| var PR_normalizedHtml; |
| |
| /** Contains functions for creating and registering new language handlers. |
| * @type {Object} |
| */ |
| var PR; |
| |
| /** Pretty print a chunk of code. |
| * |
| * @param {string} sourceCodeHtml code as html |
| * @return {string} code as html, but prettier |
| */ |
| var prettyPrintOne; |
| /** find all the < pre > and < code > tags in the DOM with class=prettyprint |
| * and prettify them. |
| * @param {Function} opt_whenDone if specified, called when the last entry |
| * has been finished. |
| */ |
| var prettyPrint; |
| |
| /** browser detection. @extern */ |
| function _pr_isIE6() { |
| var isIE6 = navigator && navigator.userAgent && |
| /\bMSIE 6\./.test(navigator.userAgent); |
| _pr_isIE6 = function () { return isIE6; }; |
| return isIE6; |
| } |
| |
| |
| (function () { |
| /** Splits input on space and returns an Object mapping each non-empty part to |
| * true. |
| */ |
| function wordSet(words) { |
| words = words.split(/ /g); |
| var set = {}; |
| for (var i = words.length; --i >= 0;) { |
| var w = words[i]; |
| if (w) { set[w] = null; } |
| } |
| return set; |
| } |
| |
| // Keyword lists for various languages. |
| 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 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 "; |
| var CPP_KEYWORDS = COMMON_KEYWORDS + "alignof align_union asm axiom bool " + |
| "concept concept_map const_cast constexpr decltype " + |
| "dynamic_cast explicit export friend inline late_check " + |
| "mutable namespace nullptr reinterpret_cast static_assert static_cast " + |
| "template typeid typename typeof using virtual wchar_t where "; |
| var JAVA_KEYWORDS = COMMON_KEYWORDS + |
| "boolean byte extends final finally implements import instanceof null " + |
| "native package strictfp super synchronized throws transient "; |
| var CSHARP_KEYWORDS = JAVA_KEYWORDS + |
| "as base by checked decimal delegate descending event " + |
| "fixed foreach from group implicit in interface internal into is lock " + |
| "object out override orderby params readonly ref sbyte sealed " + |
| "stackalloc string select uint ulong unchecked unsafe ushort var "; |
| 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 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 */ |
| var PR_STRING = 'str'; |
| /** token style for a keyword */ |
| var PR_KEYWORD = 'kwd'; |
| /** token style for a comment */ |
| var PR_COMMENT = 'com'; |
| /** token style for a type */ |
| var PR_TYPE = 'typ'; |
| /** token style for a literal value. e.g. 1, null, true. */ |
| var PR_LITERAL = 'lit'; |
| /** token style for a punctuation string. */ |
| var PR_PUNCTUATION = 'pun'; |
| /** token style for a punctuation string. */ |
| var PR_PLAIN = 'pln'; |
| |
| /** token style for an sgml tag. */ |
| var PR_TAG = 'tag'; |
| /** token style for a markup declaration such as a DOCTYPE. */ |
| var PR_DECLARATION = 'dec'; |
| /** token style for embedded source. */ |
| var PR_SOURCE = 'src'; |
| /** token style for an sgml attribute name. */ |
| var PR_ATTRIB_NAME = 'atn'; |
| /** token style for an sgml attribute value. */ |
| 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. |
| */ |
| var PR_NOCODE = 'nocode'; |
| |
| function isWordChar(ch) { |
| return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z'); |
| } |
| |
| /** Splice one array into another. |
| * Like the python <code> |
| * container[containerPosition:containerPosition + countReplaced] = inserted |
| * </code> |
| * @param {Array} inserted |
| * @param {Array} container modified in place |
| * @param {Number} containerPosition |
| * @param {Number} countReplaced |
| */ |
| function spliceArrayInto( |
| inserted, container, containerPosition, countReplaced) { |
| inserted.unshift(containerPosition, countReplaced || 0); |
| try { |
| container.splice.apply(container, inserted); |
| } finally { |
| inserted.splice(0, 2); |
| } |
| } |
| |
| /** A set of tokens that can precede a regular expression literal in |
| * javascript. |
| * 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. |
| * |
| * <p>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. |
| * @private |
| */ |
| var REGEXP_PRECEDER_PATTERN = function () { |
| var preceders = [ |
| "!", "!=", "!==", "#", "%", "%=", "&", "&&", "&&=", |
| "&=", "(", "*", "*=", /* "+", */ "+=", ",", /* "-", */ "-=", |
| "->", /*".", "..", "...", handled below */ "/", "/=", ":", "::", ";", |
| "<", "<<", "<<=", "<=", "=", "==", "===", ">", |
| ">=", ">>", ">>=", ">>>", ">>>=", "?", "@", "[", |
| "^", "^=", "^^", "^^=", "{", "|", "|=", "||", |
| "||=", "~" /* handles =~ and !~ */, |
| "break", "case", "continue", "delete", |
| "do", "else", "finally", "instanceof", |
| "return", "throw", "try", "typeof" |
| ]; |
| var pattern = '(?:' + |
| '(?:(?:^|[^0-9.])\\.{1,3})|' + // a dot that's not part of a number |
| '(?:(?:^|[^\\+])\\+)|' + // allow + but not ++ |
| '(?:(?:^|[^\\-])-)'; // allow - but not -- |
| for (var i = 0; i < preceders.length; ++i) { |
| var preceder = preceders[i]; |
| if (isWordChar(preceder.charAt(0))) { |
| pattern += '|\\b' + preceder; |
| } else { |
| pattern += '|' + preceder.replace(/([^=<>:&])/g, '\\$1'); |
| } |
| } |
| pattern += '|^)\\s*$'; // matches at end, and matches empty string |
| return new RegExp(pattern); |
| // 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. |
| }(); |
| |
| // Define regexps here so that the interpreter doesn't have to create an |
| // object each time the function containing them is called. |
| // The language spec requires a new object created even if you don't access |
| // the $1 members. |
| var pr_amp = /&/g; |
| var pr_lt = /</g; |
| var pr_gt = />/g; |
| var pr_quot = /\"/g; |
| /** like textToHtml but escapes double quotes to be attribute safe. */ |
| function attribToHtml(str) { |
| return str.replace(pr_amp, '&') |
| .replace(pr_lt, '<') |
| .replace(pr_gt, '>') |
| .replace(pr_quot, '"'); |
| } |
| |
| /** escapest html special characters to html. */ |
| function textToHtml(str) { |
| return str.replace(pr_amp, '&') |
| .replace(pr_lt, '<') |
| .replace(pr_gt, '>'); |
| } |
| |
| |
| var pr_ltEnt = /</g; |
| var pr_gtEnt = />/g; |
| var pr_aposEnt = /'/g; |
| var pr_quotEnt = /"/g; |
| var pr_ampEnt = /&/g; |
| var pr_nbspEnt = / /g; |
| /** unescapes html to plain text. */ |
| function htmlToText(html) { |
| var pos = html.indexOf('&'); |
| if (pos < 0) { return html; } |
| // Handle numeric entities specially. We can't use functional substitution |
| // since that doesn't work in older versions of Safari. |
| // These should be rare since most browsers convert them to normal chars. |
| for (--pos; (pos = html.indexOf('&#', pos + 1)) >= 0;) { |
| var end = html.indexOf(';', pos); |
| if (end >= 0) { |
| var num = html.substring(pos + 3, end); |
| var radix = 10; |
| if (num && num.charAt(0) === 'x') { |
| num = num.substring(1); |
| radix = 16; |
| } |
| var codePoint = parseInt(num, radix); |
| if (!isNaN(codePoint)) { |
| html = (html.substring(0, pos) + String.fromCharCode(codePoint) + |
| html.substring(end + 1)); |
| } |
| } |
| } |
| |
| return html.replace(pr_ltEnt, '<') |
| .replace(pr_gtEnt, '>') |
| .replace(pr_aposEnt, "'") |
| .replace(pr_quotEnt, '"') |
| .replace(pr_ampEnt, '&') |
| .replace(pr_nbspEnt, ' '); |
| } |
| |
| /** is the given node's innerHTML normally unescaped? */ |
| function isRawContent(node) { |
| return 'XMP' === node.tagName; |
| } |
| |
| function normalizedHtml(node, out) { |
| switch (node.nodeType) { |
| case 1: // an element |
| var name = node.tagName.toLowerCase(); |
| out.push('<', name); |
| for (var i = 0; i < node.attributes.length; ++i) { |
| var attr = node.attributes[i]; |
| if (!attr.specified) { continue; } |
| out.push(' '); |
| normalizedHtml(attr, out); |
| } |
| out.push('>'); |
| for (var child = node.firstChild; child; child = child.nextSibling) { |
| normalizedHtml(child, out); |
| } |
| if (node.firstChild || !/^(?:br|link|img)$/.test(name)) { |
| out.push('<\/', name, '>'); |
| } |
| break; |
| case 2: // an attribute |
| out.push(node.name.toLowerCase(), '="', attribToHtml(node.value), '"'); |
| break; |
| case 3: case 4: // text |
| out.push(textToHtml(node.nodeValue)); |
| break; |
| } |
| } |
| |
| var PR_innerHtmlWorks = null; |
| function getInnerHtml(node) { |
| // inner html is hopelessly broken in Safari 2.0.4 when the content is |
| // an html description of well formed XML and the containing tag is a PRE |
| // tag, so we detect that case and emulate innerHTML. |
| if (null === PR_innerHtmlWorks) { |
| var testNode = document.createElement('PRE'); |
| testNode.appendChild( |
| document.createTextNode('<!DOCTYPE foo PUBLIC "foo bar">\n<foo />')); |
| PR_innerHtmlWorks = !/</.test(testNode.innerHTML); |
| } |
| |
| if (PR_innerHtmlWorks) { |
| var content = node.innerHTML; |
| // XMP tags contain unescaped entities so require special handling. |
| if (isRawContent(node)) { |
| content = textToHtml(content); |
| } |
| return content; |
| } |
| |
| var out = []; |
| for (var child = node.firstChild; child; child = child.nextSibling) { |
| normalizedHtml(child, out); |
| } |
| return out.join(''); |
| } |
| |
| /** returns a function that expand tabs to spaces. This function can be fed |
| * successive chunks of text, and will maintain its own internal state to |
| * keep track of how tabs are expanded. |
| * @return {function (string) : string} a function that takes |
| * plain text and return the text with tabs expanded. |
| * @private |
| */ |
| function makeTabExpander(tabWidth) { |
| var SPACES = ' '; |
| var charInLine = 0; |
| |
| return function (plainText) { |
| // walk over each character looking for tabs and newlines. |
| // On tabs, expand them. On newlines, reset charInLine. |
| // Otherwise increment charInLine |
| var out = null; |
| var pos = 0; |
| for (var i = 0, n = plainText.length; i < n; ++i) { |
| var ch = plainText.charAt(i); |
| |
| switch (ch) { |
| case '\t': |
| if (!out) { out = []; } |
| out.push(plainText.substring(pos, i)); |
| // calculate how much space we need in front of this part |
| // nSpaces is the amount of padding -- the number of spaces needed |
| // to move us to the next column, where columns occur at factors of |
| // tabWidth. |
| var nSpaces = tabWidth - (charInLine % tabWidth); |
| charInLine += nSpaces; |
| for (; nSpaces >= 0; nSpaces -= SPACES.length) { |
| out.push(SPACES.substring(0, nSpaces)); |
| } |
| pos = i + 1; |
| break; |
| case '\n': |
| charInLine = 0; |
| break; |
| default: |
| ++charInLine; |
| } |
| } |
| if (!out) { return plainText; } |
| out.push(plainText.substring(pos)); |
| return out.join(''); |
| }; |
| } |
| |
| // The below pattern matches one of the following |
| // (1) /[^<]+/ : A run of characters other than '<' |
| // (2) /<!--.*?-->/: an HTML comment |
| // (3) /<!\[CDATA\[.*?\]\]>/: a cdata section |
| // (3) /<\/?[a-zA-Z][^>]*>/ : A probably tag that should not be highlighted |
| // (4) /</ : A '<' that does not begin a larger chunk. Treated as 1 |
| var pr_chunkPattern = |
| /(?:[^<]+|<!--[\s\S]*?-->|<!\[CDATA\[([\s\S]*?)\]\]>|<\/?[a-zA-Z][^>]*>|<)/g; |
| var pr_commentPrefix = /^<!--/; |
| var pr_cdataPrefix = /^<\[CDATA\[/; |
| var pr_brPrefix = /^<br\b/i; |
| var pr_tagNameRe = /^<(\/?)([a-zA-Z]+)/; |
| |
| /** split markup into chunks of html tags (style null) and |
| * plain text (style {@link #PR_PLAIN}), converting tags which are |
| * significant for tokenization (<br>) into their textual equivalent. |
| * |
| * @param {string} s html where whitespace is considered significant. |
| * @return {Object} source code and extracted tags. |
| * @private |
| */ |
| function extractTags(s) { |
| // since the pattern has the 'g' modifier and defines no capturing groups, |
| // this will return a list of all chunks which we then classify and wrap as |
| // PR_Tokens |
| var matches = s.match(pr_chunkPattern); |
| var sourceBuf = []; |
| var sourceBufLen = 0; |
| var extractedTags = []; |
| if (matches) { |
| for (var i = 0, n = matches.length; i < n; ++i) { |
| var match = matches[i]; |
| if (match.length > 1 && match.charAt(0) === '<') { |
| if (pr_commentPrefix.test(match)) { continue; } |
| if (pr_cdataPrefix.test(match)) { |
| // strip CDATA prefix and suffix. Don't unescape since it's CDATA |
| sourceBuf.push(match.substring(9, match.length - 3)); |
| sourceBufLen += match.length - 12; |
| } else if (pr_brPrefix.test(match)) { |
| // <br> tags are lexically significant so convert them to text. |
| // This is undone later. |
| sourceBuf.push('\n'); |
| ++sourceBufLen; |
| } else { |
| if (match.indexOf(PR_NOCODE) >= 0 && isNoCodeTag(match)) { |
| // A <span class="nocode"> will start a section that should be |
| // ignored. Continue walking the list until we see a matching end |
| // tag. |
| var name = match.match(pr_tagNameRe)[2]; |
| var depth = 1; |
| end_tag_loop: |
| for (var j = i + 1; j < n; ++j) { |
| var name2 = matches[j].match(pr_tagNameRe); |
| if (name2 && name2[2] === name) { |
| if (name2[1] === '/') { |
| if (--depth === 0) { break end_tag_loop; } |
| } else { |
| ++depth; |
| } |
| } |
| } |
| if (j < n) { |
| extractedTags.push( |
| sourceBufLen, matches.slice(i, j + 1).join('')); |
| i = j; |
| } else { // Ignore unclosed sections. |
| extractedTags.push(sourceBufLen, match); |
| } |
| } else { |
| extractedTags.push(sourceBufLen, match); |
| } |
| } |
| } else { |
| var literalText = htmlToText(match); |
| sourceBuf.push(literalText); |
| sourceBufLen += literalText.length; |
| } |
| } |
| } |
| return { source: sourceBuf.join(''), tags: extractedTags }; |
| } |
| |
| /** True if the given tag contains a class attribute with the nocode class. */ |
| function isNoCodeTag(tag) { |
| return !!tag |
| // First canonicalize the representation of attributes |
| .replace(/\s(\w+)\s*=\s*(?:\"([^\"]*)\"|'([^\']*)'|(\S+))/g, |
| ' $1="$2$3$4"') |
| // Then look for the attribute we want. |
| .match(/[cC][lL][aA][sS][sS]=\"[^\"]*\bnocode\b/); |
| } |
| |
| /** 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, context : RegExp, shortcut : string]. |
| & |
| * Style is a style constant like PR_PLAIN. |
| * |
| * Pattern must only match prefixes, and if it matches a prefix and context |
| * is null or matches the last non-comment token parsed, 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 (string, number?) : Array.<number|string>} a |
| * function that takes source code and returns a list of decorations. |
| */ |
| function createSimpleLexer(shortcutStylePatterns, |
| fallthroughStylePatterns) { |
| var shortcuts = {}; |
| (function () { |
| var allPatterns = shortcutStylePatterns.concat(fallthroughStylePatterns); |
| for (var i = allPatterns.length; --i >= 0;) { |
| var patternParts = allPatterns[i]; |
| var shortcutChars = patternParts[3]; |
| if (shortcutChars) { |
| for (var c = shortcutChars.length; --c >= 0;) { |
| shortcuts[shortcutChars.charAt(c)] = patternParts; |
| } |
| } |
| } |
| })(); |
| |
| var nPatterns = fallthroughStylePatterns.length; |
| var notWs = /\S/; |
| |
| return function (sourceCode, opt_basePos) { |
| opt_basePos = opt_basePos || 0; |
| var decorations = [opt_basePos, PR_PLAIN]; |
| var lastToken = ''; |
| var pos = 0; // index into sourceCode |
| var tail = sourceCode; |
| |
| while (tail.length) { |
| var style; |
| var token = null; |
| var match; |
| |
| var patternParts = shortcuts[tail.charAt(0)]; |
| if (patternParts) { |
| match = tail.match(patternParts[1]); |
| token = match[0]; |
| style = patternParts[0]; |
| } else { |
| for (var i = 0; i < nPatterns; ++i) { |
| patternParts = fallthroughStylePatterns[i]; |
| var contextPattern = patternParts[2]; |
| if (contextPattern && !contextPattern.test(lastToken)) { |
| // rule can't be used |
| continue; |
| } |
| match = tail.match(patternParts[1]); |
| if (match) { |
| token = match[0]; |
| style = patternParts[0]; |
| break; |
| } |
| } |
| |
| if (!token) { // make sure that we make progress |
| style = PR_PLAIN; |
| token = tail.substring(0, 1); |
| } |
| } |
| |
| decorations.push(opt_basePos + pos, style); |
| pos += token.length; |
| tail = tail.substring(token.length); |
| if (style !== PR_COMMENT && notWs.test(token)) { lastToken = token; } |
| } |
| return decorations; |
| }; |
| } |
| |
| var PR_MARKUP_LEXER = createSimpleLexer([], [ |
| [PR_PLAIN, /^[^<]+/, null], |
| [PR_DECLARATION, /^<!\w[^>]*(?:>|$)/, null], |
| [PR_COMMENT, /^<!--[\s\S]*?(?:-->|$)/, null], |
| [PR_SOURCE, /^<\?[\s\S]*?(?:\?>|$)/, null], |
| [PR_SOURCE, /^<%[\s\S]*?(?:%>|$)/, null], |
| [PR_SOURCE, |
| // Tags whose content is not escaped, and which contain source code. |
| /^<(script|style|xmp)\b[^>]*>[\s\S]*?<\/\1\b[^>]*>/i, null], |
| [PR_TAG, /^<\/?\w[^<>]*>/, null] |
| ]); |
| // Splits any of the source|style|xmp entries above into a start tag, |
| // source content, and end tag. |
| var PR_SOURCE_CHUNK_PARTS = /^(<[^>]*>)([\s\S]*)(<\/[^>]*>)$/; |
| /** split markup on tags, comments, application directives, and other top |
| * level constructs. Tags are returned as a single token - attributes are |
| * not yet broken out. |
| * @private |
| */ |
| function tokenizeMarkup(source) { |
| var decorations = PR_MARKUP_LEXER(source); |
| for (var i = 0; i < decorations.length; i += 2) { |
| if (decorations[i + 1] === PR_SOURCE) { |
| var start, end; |
| start = decorations[i]; |
| end = i + 2 < decorations.length ? decorations[i + 2] : source.length; |
| // Split out start and end script tags as actual tags, and leave the |
| // body with style SCRIPT. |
| var sourceChunk = source.substring(start, end); |
| var match = sourceChunk.match(PR_SOURCE_CHUNK_PARTS); |
| if (match) { |
| decorations.splice( |
| i, 2, |
| start, PR_TAG, // the open chunk |
| start + match[1].length, PR_SOURCE, |
| start + match[1].length + (match[2] || '').length, PR_TAG); |
| } |
| } |
| } |
| return decorations; |
| } |
| |
| var PR_TAG_LEXER = createSimpleLexer([ |
| [PR_ATTRIB_VALUE, /^\'[^\']*(?:\'|$)/, null, "'"], |
| [PR_ATTRIB_VALUE, /^\"[^\"]*(?:\"|$)/, null, '"'], |
| [PR_PUNCTUATION, /^[<>\/=]+/, null, '<>/='] |
| ], [ |
| [PR_TAG, /^[\w:\-]+/, /^</], |
| [PR_ATTRIB_VALUE, /^[\w\-]+/, /^=/], |
| [PR_ATTRIB_NAME, /^[\w:\-]+/, null], |
| [PR_PLAIN, /^\s+/, null, ' \t\r\n'] |
| ]); |
| /** split tags attributes and their values out from the tag name, and |
| * recursively lex source chunks. |
| * @private |
| */ |
| function splitTagAttributes(source, decorations) { |
| for (var i = 0; i < decorations.length; i += 2) { |
| var style = decorations[i + 1]; |
| if (style === PR_TAG) { |
| var start, end; |
| start = decorations[i]; |
| end = i + 2 < decorations.length ? decorations[i + 2] : source.length; |
| var chunk = source.substring(start, end); |
| var subDecorations = PR_TAG_LEXER(chunk, start); |
| spliceArrayInto(subDecorations, decorations, i, 2); |
| i += subDecorations.length - 2; |
| } |
| } |
| return decorations; |
| } |
| |
| /** 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 (string) : Array.<string|number>} a |
| * decorator that takes sourceCode as plain text and that returns a |
| * 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]|\\.)*(?:\"|$))/, |
| null, '"\'']); |
| } |
| fallthroughStylePatterns.push( |
| [PR_PLAIN, /^(?:[^\'\"\`\/\#]+)/, null, ' \r\n']); |
| if (options.hashComments) { |
| shortcutStylePatterns.push([PR_COMMENT, /^#[^\r\n]*/, null, '#']); |
| } |
| if (options.cStyleComments) { |
| fallthroughStylePatterns.push([PR_COMMENT, /^\/\/[^\r\n]*/, null]); |
| fallthroughStylePatterns.push( |
| [PR_COMMENT, /^\/\*[\s\S]*?(?:\*\/|$)/, null]); |
| } |
| if (options.regexLiterals) { |
| 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. |
| '^/(?=[^/*])' |
| // and then contains any number of raw characters, |
| + '(?:[^/\\x5B\\x5C]' |
| // escape sequences (\x5C), |
| + '|\\x5C[\\s\\S]' |
| // or non-nesting character sets (\x5B\x5D); |
| + '|\\x5B(?:[^\\x5C\\x5D]|\\x5C[\\s\\S])*(?:\\x5D|$))+' |
| // finally closed by a /. |
| + '(?:/|$)'); |
| fallthroughStylePatterns.push( |
| [PR_STRING, new RegExp(REGEX_LITERAL), REGEXP_PRECEDER_PATTERN]); |
| } |
| |
| var keywords = wordSet(options.keywords); |
| |
| options = null; |
| |
| /** splits the given string into comment, string, and "other" tokens. |
| * @param {string} sourceCode as plain text |
| * @return {Array.<number|string>} a decoration list. |
| * @private |
| */ |
| var splitStringAndCommentTokens = createSimpleLexer( |
| shortcutStylePatterns, fallthroughStylePatterns); |
| |
| var styleLiteralIdentifierPuncRecognizer = createSimpleLexer([], [ |
| [PR_PLAIN, /^\s+/, null, ' \r\n'], |
| // TODO(mikesamuel): recognize non-latin letters and numerals in idents |
| [PR_PLAIN, /^[a-z_$@][a-z_$@0-9]*/i, null], |
| // A hex number |
| [PR_LITERAL, /^0x[a-f0-9]+[a-z]/i, null], |
| // An octal or decimal number, possibly in scientific notation |
| [PR_LITERAL, |
| /^(?:\d(?:_\d+)*\d*(?:\.\d*)?|\.\d+)(?:e[+\-]?\d+)?[a-z]*/i, |
| null, '123456789'], |
| [PR_PUNCTUATION, /^[^\s\w\.$@]+/, null] |
| // Fallback will handle decimal points not adjacent to a digit |
| ]); |
| |
| /** splits plain text tokens into more specific tokens, and then tries to |
| * recognize keywords, and types. |
| * @private |
| */ |
| function splitNonStringNonCommentTokens(source, decorations) { |
| for (var i = 0; i < decorations.length; i += 2) { |
| var style = decorations[i + 1]; |
| if (style === PR_PLAIN) { |
| var start, end, chunk, subDecs; |
| start = decorations[i]; |
| end = i + 2 < decorations.length ? decorations[i + 2] : source.length; |
| chunk = source.substring(start, end); |
| subDecs = styleLiteralIdentifierPuncRecognizer(chunk, start); |
| for (var j = 0, m = subDecs.length; j < m; j += 2) { |
| var subStyle = subDecs[j + 1]; |
| if (subStyle === PR_PLAIN) { |
| var subStart = subDecs[j]; |
| var subEnd = j + 2 < m ? subDecs[j + 2] : chunk.length; |
| var token = source.substring(subStart, subEnd); |
| if (token === '.') { |
| subDecs[j + 1] = PR_PUNCTUATION; |
| } else if (token in keywords) { |
| subDecs[j + 1] = PR_KEYWORD; |
| } else if (/^@?[A-Z][A-Z$]*[a-z][A-Za-z$]*$/.test(token)) { |
| // classify types and annotations using Java's style conventions |
| subDecs[j + 1] = token.charAt(0) === '@' ? PR_LITERAL : PR_TYPE; |
| } |
| } |
| } |
| spliceArrayInto(subDecs, decorations, i, 2); |
| i += subDecs.length - 2; |
| } |
| } |
| return decorations; |
| } |
| |
| return function (sourceCode) { |
| // Split into strings, comments, and other. |
| // We do this because strings and comments are easily recognizable and can |
| // contain stuff that looks like other tokens, so we want to mark those |
| // early so we don't recurse into them. |
| var decorations = splitStringAndCommentTokens(sourceCode); |
| |
| // Split non comment|string tokens on whitespace and word boundaries |
| decorations = splitNonStringNonCommentTokens(sourceCode, decorations); |
| |
| return decorations; |
| }; |
| } |
| |
| var decorateSource = sourceDecorator({ |
| keywords: ALL_KEYWORDS, |
| hashComments: true, |
| cStyleComments: true, |
| multiLineStrings: true, |
| regexLiterals: true |
| }); |
| |
| /** identify regions of markup that are really source code, and recursivley |
| * lex them. |
| * @private |
| */ |
| function splitSourceNodes(source, decorations) { |
| for (var i = 0; i < decorations.length; i += 2) { |
| var style = decorations[i + 1]; |
| if (style === PR_SOURCE) { |
| // Recurse using the non-markup lexer |
| var start, end; |
| start = decorations[i]; |
| end = i + 2 < decorations.length ? decorations[i + 2] : source.length; |
| var subDecorations = decorateSource(source.substring(start, end)); |
| for (var j = 0, m = subDecorations.length; j < m; j += 2) { |
| subDecorations[j] += start; |
| } |
| spliceArrayInto(subDecorations, decorations, i, 2); |
| i += subDecorations.length - 2; |
| } |
| } |
| return decorations; |
| } |
| |
| /** identify attribute values that really contain source code and recursively |
| * lex them. |
| * @private |
| */ |
| function splitSourceAttributes(source, decorations) { |
| var nextValueIsSource = false; |
| for (var i = 0; i < decorations.length; i += 2) { |
| var style = decorations[i + 1]; |
| var start, end; |
| if (style === PR_ATTRIB_NAME) { |
| start = decorations[i]; |
| end = i + 2 < decorations.length ? decorations[i + 2] : source.length; |
| nextValueIsSource = /^on|^style$/i.test(source.substring(start, end)); |
| } else if (style === PR_ATTRIB_VALUE) { |
| if (nextValueIsSource) { |
| start = decorations[i]; |
| end = i + 2 < decorations.length ? decorations[i + 2] : source.length; |
| var attribValue = source.substring(start, end); |
| var attribLen = attribValue.length; |
| var quoted = |
| (attribLen >= 2 && /^[\"\']/.test(attribValue) && |
| attribValue.charAt(0) === attribValue.charAt(attribLen - 1)); |
| |
| var attribSource; |
| var attribSourceStart; |
| var attribSourceEnd; |
| if (quoted) { |
| attribSourceStart = start + 1; |
| attribSourceEnd = end - 1; |
| attribSource = attribValue; |
| } else { |
| attribSourceStart = start + 1; |
| attribSourceEnd = end - 1; |
| attribSource = attribValue.substring(1, attribValue.length - 1); |
| } |
| |
| var attribSourceDecorations = decorateSource(attribSource); |
| for (var j = 0, m = attribSourceDecorations.length; j < m; j += 2) { |
| attribSourceDecorations[j] += attribSourceStart; |
| } |
| |
| if (quoted) { |
| attribSourceDecorations.push(attribSourceEnd, PR_ATTRIB_VALUE); |
| spliceArrayInto(attribSourceDecorations, decorations, i + 2, 0); |
| } else { |
| spliceArrayInto(attribSourceDecorations, decorations, i, 2); |
| } |
| } |
| nextValueIsSource = false; |
| } |
| } |
| return decorations; |
| } |
| |
| /** returns a decoration list given a string of markup. |
| * |
| * This code recognizes a number of constructs. |
| * <!-- ... --> comment |
| * <!\w ... > declaration |
| * <\w ... > tag |
| * </\w ... > tag |
| * <?...?> embedded source |
| * <%...%> embedded source |
| * &[#\w]...; entity |
| * |
| * It does not recognizes %foo; doctype entities from . |
| * |
| * It will recurse into any <style>, <script>, and on* attributes using |
| * PR_lexSource. |
| */ |
| function decorateMarkup(sourceCode) { |
| // This function works as follows: |
| // 1) Start by splitting the markup into text and tag chunks |
| // Input: string s |
| // Output: List<PR_Token> where style in (PR_PLAIN, null) |
| // 2) Then split the text chunks further into comments, declarations, |
| // tags, etc. |
| // After each split, consider whether the token is the start of an |
| // embedded source section, i.e. is an open <script> tag. If it is, find |
| // the corresponding close token, and don't bother to lex in between. |
| // Input: List<string> |
| // Output: List<PR_Token> with style in |
| // (PR_TAG, PR_PLAIN, PR_SOURCE, null) |
| // 3) Finally go over each tag token and split out attribute names and |
| // values. |
| // Input: List<PR_Token> |
| // Output: List<PR_Token> where style in |
| // (PR_TAG, PR_PLAIN, PR_SOURCE, NAME, VALUE, null) |
| var decorations = tokenizeMarkup(sourceCode); |
| decorations = splitTagAttributes(sourceCode, decorations); |
| decorations = splitSourceNodes(sourceCode, decorations); |
| decorations = splitSourceAttributes(sourceCode, decorations); |
| return decorations; |
| } |
| |
| /** |
| * @param {string} sourceText plain text |
| * @param {Array.<number|string>} extractedTags chunks of raw html preceded |
| * by their position in sourceText in order. |
| * @param {Array.<number|string>} decorations style classes preceded by their |
| * position in sourceText in order. |
| * @return {string} html |
| * @private |
| */ |
| function recombineTagsAndDecorations(sourceText, extractedTags, decorations) { |
| var html = []; |
| // index past the last char in sourceText written to html |
| var outputIdx = 0; |
| |
| var openDecoration = null; |
| var currentDecoration = null; |
| var tagPos = 0; // index into extractedTags |
| var decPos = 0; // index into decorations |
| var tabExpander = makeTabExpander(PR_TAB_WIDTH); |
| |
| var adjacentSpaceRe = /([\r\n ]) /g; |
| var startOrSpaceRe = /(^| ) /gm; |
| var newlineRe = /\r\n?|\n/g; |
| var trailingSpaceRe = /[ \r\n]$/; |
| var lastWasSpace = true; // the last text chunk emitted ended with a space. |
| |
| // A helper function that is responsible for opening sections of decoration |
| // and outputing properly escaped chunks of source |
| function emitTextUpTo(sourceIdx) { |
| if (sourceIdx > outputIdx) { |
| if (openDecoration && openDecoration !== currentDecoration) { |
| // Close the current decoration |
| html.push('</span>'); |
| openDecoration = null; |
| } |
| if (!openDecoration && currentDecoration) { |
| openDecoration = currentDecoration; |
| html.push('<span class="', openDecoration, '">'); |
| } |
| // This interacts badly with some wikis which introduces paragraph tags |
| // into pre blocks for some strange reason. |
| // It's necessary for IE though which seems to lose the preformattedness |
| // of <pre> tags when their innerHTML is assigned. |
| // http://stud3.tuwien.ac.at/~e0226430/innerHtmlQuirk.html |
| // and it serves to undo the conversion of <br>s to newlines done in |
| // chunkify. |
| var htmlChunk = textToHtml( |
| tabExpander(sourceText.substring(outputIdx, sourceIdx))) |
| .replace(lastWasSpace |
| ? startOrSpaceRe |
| : adjacentSpaceRe, '$1 '); |
| // Keep track of whether we need to escape space at the beginning of the |
| // next chunk. |
| lastWasSpace = trailingSpaceRe.test(htmlChunk); |
| html.push(htmlChunk.replace(newlineRe, '<br />')); |
| outputIdx = sourceIdx; |
| } |
| } |
| |
| while (true) { |
| // Determine if we're going to consume a tag this time around. Otherwise |
| // we consume a decoration or exit. |
| var outputTag; |
| if (tagPos < extractedTags.length) { |
| if (decPos < decorations.length) { |
| // Pick one giving preference to extractedTags since we shouldn't open |
| // a new style that we're going to have to immediately close in order |
| // to output a tag. |
| outputTag = extractedTags[tagPos] <= decorations[decPos]; |
| } else { |
| outputTag = true; |
| } |
| } else { |
| outputTag = false; |
| } |
| // Consume either a decoration or a tag or exit. |
| if (outputTag) { |
| emitTextUpTo(extractedTags[tagPos]); |
| if (openDecoration) { |
| // Close the current decoration |
| html.push('</span>'); |
| openDecoration = null; |
| } |
| html.push(extractedTags[tagPos + 1]); |
| tagPos += 2; |
| } else if (decPos < decorations.length) { |
| emitTextUpTo(decorations[decPos]); |
| currentDecoration = decorations[decPos + 1]; |
| decPos += 2; |
| } else { |
| break; |
| } |
| } |
| emitTextUpTo(sourceText.length); |
| if (openDecoration) { |
| html.push('</span>'); |
| } |
| |
| return html.join(''); |
| } |
| |
| /** Maps language-specific file extensions to handlers. */ |
| var langHandlerRegistry = {}; |
| /** Register a language handler for the given file extensions. |
| * @param {function (string) : Array.<number|string>} handler |
| * a function from source code to a list of decorations. |
| * @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 ('console' in window) { |
| console.log('cannot override language handler %s', ext); |
| } |
| } |
| } |
| registerLangHandler(decorateSource, ['default-code']); |
| registerLangHandler(decorateMarkup, |
| ['default-markup', 'html', 'htm', 'xhtml', 'xml', 'xsl']); |
| registerLangHandler(sourceDecorator({ |
| keywords: CPP_KEYWORDS, |
| hashComments: true, |
| cStyleComments: true |
| }), ['c', 'cc', 'cpp', 'cxx', 'cyc']); |
| registerLangHandler(sourceDecorator({ |
| keywords: CSHARP_KEYWORDS, |
| hashComments: true, |
| cStyleComments: true |
| }), ['cs']); |
| registerLangHandler(sourceDecorator({ |
| keywords: JAVA_KEYWORDS, |
| cStyleComments: true |
| }), ['java']); |
| registerLangHandler(sourceDecorator({ |
| keywords: SH_KEYWORDS, |
| hashComments: true, |
| multiLineStrings: true |
| }), ['bsh', 'csh', 'sh']); |
| registerLangHandler(sourceDecorator({ |
| keywords: PYTHON_KEYWORDS, |
| hashComments: true, |
| multiLineStrings: true, |
| tripleQuotedStrings: true |
| }), ['cv', 'py']); |
| registerLangHandler(sourceDecorator({ |
| keywords: PERL_KEYWORDS, |
| hashComments: true, |
| multiLineStrings: true, |
| regexLiterals: true |
| }), ['perl', 'pl', 'pm']); |
| registerLangHandler(sourceDecorator({ |
| keywords: RUBY_KEYWORDS, |
| hashComments: true, |
| multiLineStrings: true, |
| regexLiterals: true |
| }), ['rb']); |
| registerLangHandler(sourceDecorator({ |
| keywords: JSCRIPT_KEYWORDS, |
| cStyleComments: true, |
| regexLiterals: true |
| }), ['js']); |
| |
| function prettyPrintOne(sourceCodeHtml, opt_langExtension) { |
| try { |
| // Extract tags, and convert the source code to plain text. |
| var sourceAndExtractedTags = extractTags(sourceCodeHtml); |
| /** Plain text. @type {string} */ |
| var source = sourceAndExtractedTags.source; |
| |
| /** Even entries are positions in source in ascending order. Odd entries |
| * are tags that were extracted at that position. |
| * @type {Array.<number|string>} |
| */ |
| var extractedTags = sourceAndExtractedTags.tags; |
| |
| // Pick a lexer and apply it. |
| if (!langHandlerRegistry.hasOwnProperty(opt_langExtension)) { |
| // Treat it as markup if the first non whitespace character is a < and |
| // the last non-whitespace character is a >. |
| opt_langExtension = |
| /^\s*</.test(source) ? 'default-markup' : 'default-code'; |
| } |
| |
| /** 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 = langHandlerRegistry[opt_langExtension].call({}, source); |
| |
| // Integrate the decorations and tags back into the source code to produce |
| // a decorated html string. |
| return recombineTagsAndDecorations(source, extractedTags, decorations); |
| } catch (e) { |
| if ('console' in window) { |
| console.log(e); |
| console.trace(); |
| } |
| return sourceCodeHtml; |
| } |
| } |
| |
| function prettyPrint(opt_whenDone) { |
| var isIE6 = _pr_isIE6(); |
| |
| // fetch a list of nodes to rewrite |
| var codeSegments = [ |
| document.getElementsByTagName('pre'), |
| document.getElementsByTagName('code'), |
| document.getElementsByTagName('xmp') ]; |
| var elements = []; |
| for (var i = 0; i < codeSegments.length; ++i) { |
| for (var j = 0; j < codeSegments[i].length; ++j) { |
| elements.push(codeSegments[i][j]); |
| } |
| } |
| codeSegments = null; |
| |
| // 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; |
| |
| function doWork() { |
| var endTime = (PR_SHOULD_USE_CONTINUATION ? |
| new Date().getTime() + 250 /* ms */ : |
| Infinity); |
| for (; k < elements.length && new Date().getTime() < endTime; k++) { |
| var cs = elements[k]; |
| if (cs.className && cs.className.indexOf('prettyprint') >= 0) { |
| // 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. |
| var langExtension = cs.className.match(/\blang-(\w+)\b/); |
| if (langExtension) { langExtension = langExtension[1]; } |
| |
| // make sure this is not nested in an already prettified element |
| var nested = false; |
| for (var p = cs.parentNode; p; p = p.parentNode) { |
| if ((p.tagName === 'pre' || p.tagName === 'code' || |
| p.tagName === 'xmp') && |
| p.className && p.className.indexOf('prettyprint') >= 0) { |
| nested = true; |
| break; |
| } |
| } |
| if (!nested) { |
| // fetch the content as a snippet of properly escaped HTML. |
| // Firefox adds newlines at the end. |
| var content = getInnerHtml(cs); |
| content = content.replace(/(?:\r\n?|\n)$/, ''); |
| |
| // do the pretty printing |
| var newContent = prettyPrintOne(content, langExtension); |
| |
| // push the prettified html back into the tag. |
| if (!isRawContent(cs)) { |
| // just replace the old html with the new |
| cs.innerHTML = newContent; |
| } else { |
| // we need to change the tag to a <pre> since <xmp>s do not allow |
| // embedded tags such as the span tags used to attach styles to |
| // sections of source code. |
| var pre = document.createElement('PRE'); |
| for (var i = 0; i < cs.attributes.length; ++i) { |
| var a = cs.attributes[i]; |
| if (a.specified) { |
| var aname = a.name.toLowerCase(); |
| if (aname === 'class') { |
| pre.className = a.value; // For IE 6 |
| } else { |
| pre.setAttribute(a.name, a.value); |
| } |
| } |
| } |
| pre.innerHTML = newContent; |
| |
| // remove the old |
| cs.parentNode.replaceChild(pre, cs); |
| cs = pre; |
| } |
| |
| // Replace <br>s with line-feeds so that copying and pasting works |
| // on IE 6. |
| // Doing this on other browsers breaks lots of stuff since \r\n is |
| // treated as two newlines on Firefox, and doing this also slows |
| // down rendering. |
| if (isIE6 && cs.tagName === 'PRE') { |
| var lineBreaks = cs.getElementsByTagName('br'); |
| for (var j = lineBreaks.length; --j >= 0;) { |
| var lineBreak = lineBreaks[j]; |
| lineBreak.parentNode.replaceChild( |
| document.createTextNode('\r\n'), lineBreak); |
| } |
| } |
| } |
| } |
| } |
| if (k < elements.length) { |
| // finish up in a continuation |
| setTimeout(doWork, 250); |
| } else if (opt_whenDone) { |
| opt_whenDone(); |
| } |
| } |
| |
| doWork(); |
| } |
| |
| window['PR_normalizedHtml'] = normalizedHtml; |
| window['prettyPrintOne'] = prettyPrintOne; |
| window['prettyPrint'] = prettyPrint; |
| window['PR'] = { |
| 'createSimpleLexer': createSimpleLexer, |
| 'registerLangHandler': registerLangHandler, |
| 'sourceDecorator': sourceDecorator, |
| 'PR_ATTRIB_NAME': PR_ATTRIB_NAME, |
| 'PR_ATTRIB_VALUE': PR_ATTRIB_VALUE, |
| 'PR_COMMENT': PR_COMMENT, |
| 'PR_DECLARATION': PR_DECLARATION, |
| 'PR_KEYWORD': PR_KEYWORD, |
| 'PR_LITERAL': PR_LITERAL, |
| 'PR_NOCODE': PR_NOCODE, |
| 'PR_PLAIN': PR_PLAIN, |
| 'PR_PUNCTUATION': PR_PUNCTUATION, |
| 'PR_SOURCE': PR_SOURCE, |
| 'PR_STRING': PR_STRING, |
| 'PR_TAG': PR_TAG, |
| 'PR_TYPE': PR_TYPE |
| }; |
| })(); |