+++ /dev/null
-// 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.
- * <p>
- *
- * 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.
- * <p>
- * 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.
- * <p>
- * Change log:<br>
- * cbeust, 2006/08/22
- * <blockquote>
- * Java annotations (start with "@") are now captured as literals ("lit")
- * </blockquote>
- * @requires console
- * @overrides window
- */
-
-// 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.
- */
-window['PR_SHOULD_USE_CONTINUATION'] = true;
-
-/** the number of characters between tab columns */
-window['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.
- */
-window['PR_normalizedHtml']
-
-/** Contains functions for creating and registering new language handlers.
- * @type {Object}
- */
- = window['PR']
-
-/** Pretty print a chunk of code.
- *
- * @param {string} sourceCodeHtml code as html
- * @return {string} code as html, but prettier
- */
- = window['prettyPrintOne']
-/** Find all the {@code <pre>} and {@code <code>} tags in the DOM with
- * {@code class=prettyprint} and prettify them.
- * @param {Function?} opt_whenDone if specified, called when the last entry
- * has been finished.
- */
- = window['prettyPrint'] = void 0;
-
-/** browser detection. @extern @returns false if not IE, otherwise the major version. */
-window['_pr_isIE6'] = function () {
- var ieVersion = navigator && navigator.userAgent &&
- navigator.userAgent.match(/\bMSIE ([678])\./);
- ieVersion = ieVersion ? +ieVersion[1] : false;
- window['_pr_isIE6'] = function () { return ieVersion; };
- return ieVersion;
-};
-
-
-(function () {
- // 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 typeof ";
- 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 using virtual wchar_t where ";
- var JAVA_KEYWORDS = COMMON_KEYWORDS +
- "abstract 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 partial 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';
-
- /** 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.
- *
- * <p>The link a 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
- */
- 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 = '(?:^^|[+-]';
- for (var i = 0; i < preceders.length; ++i) {
- pattern += '|' + preceders[i].replace(/([^=<>:&a-z])/g, '\\$1');
- }
- pattern += ')\\s*'; // matches at end, and matches empty string
- return 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_nbspEnt, ' ')
- .replace(pr_ampEnt, '&');
- }
-
- /** is the given node's innerHTML normally unescaped? */
- function isRawContent(node) {
- return 'XMP' === node.tagName;
- }
-
- var newlineRe = /[\r\n]/g;
- /**
- * Are newlines and adjacent spaces significant in the given node's innerHTML?
- */
- function isPreformatted(node, content) {
- // PRE means preformatted, and is a very common case, so don't create
- // unnecessary computed style objects.
- if ('PRE' === node.tagName) { return true; }
- if (!newlineRe.test(content)) { return true; } // Don't care
- var whitespace = '';
- // For disconnected nodes, IE has no currentStyle.
- if (node.currentStyle) {
- whitespace = node.currentStyle.whiteSpace;
- } else if (window.getComputedStyle) {
- // Firefox makes a best guess if node is disconnected whereas Safari
- // returns the empty string.
- whitespace = window.getComputedStyle(node, null).whiteSpace;
- }
- return !whitespace || whitespace === 'pre';
- }
-
- 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;
- }
- }
-
- /**
- * Given a group of {@link RegExp}s, returns a {@code RegExp} that globally
- * matches the union o the sets o strings matched d 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;
- }
- }
-
- function decodeEscape(charsetPart) {
- if (charsetPart.charAt(0) !== '\\') { return charsetPart.charCodeAt(0); }
- switch (charsetPart.charAt(1)) {
- case 'b': return 8;
- case 't': return 9;
- case 'n': return 0xa;
- case 'v': return 0xb;
- case 'f': return 0xc;
- case 'r': return 0xd;
- case 'u': case 'x':
- return parseInt(charsetPart.substring(2), 16)
- || charsetPart.charCodeAt(1);
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7':
- return parseInt(charsetPart.substring(1), 8);
- default: return charsetPart.charCodeAt(1);
- }
- }
-
- function encodeEscape(charCode) {
- if (charCode < 0x20) {
- return (charCode < 0x10 ? '\\x0' : '\\x') + charCode.toString(16);
- }
- var ch = String.fromCharCode(charCode);
- if (ch === '\\' || ch === '-' || ch === '[' || ch === ']') {
- ch = '\\' + ch;
- }
- return 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 groups = [];
- var ranges = [];
- var inverse = charsetParts[0] === '^';
- for (var i = inverse ? 1 : 0, n = charsetParts.length; i < n; ++i) {
- var p = charsetParts[i];
- switch (p) {
- case '\\B': case '\\b':
- case '\\D': case '\\d':
- case '\\S': case '\\s':
- case '\\W': case '\\w':
- groups.push(p);
- continue;
- }
- 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.
- 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 = [NaN, NaN];
- 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);
- }
- }
-
- var out = ['['];
- if (inverse) { out.push('^'); }
- out.push.apply(out, groups);
- 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/emd 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 && decimalValue <= groupIndex) {
- capturedGroups[decimalValue] = -1;
- }
- }
- }
-
- // 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] === undefined) {
- parts[i] = '(?:';
- }
- } else if ('\\' === p.charAt(0)) {
- var decimalValue = +p.substring(1);
- if (decimalValue && decimalValue <= groupIndex) {
- parts[i] = '\\' + capturedGroups[groupIndex];
- }
- }
- }
-
- // Remove any prefix anchors so that the output will match anywhere.
- // ^^ really does mean an anchored match though.
- for (var i = 0, groupIndex = 0; i < n; ++i) {
- if ('^' === parts[i] && '^' !== parts[i + 1]) { parts[i] = ''; }
- }
-
- // Expand letters to groupts 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');
- }
-
- 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);
- } else if (!isPreformatted(node, content)) {
- content = content.replace(/(<br\s*\/?>)[\r\n]+/g, '$1')
- .replace(/(?:[\r\n]+[ \t]*)+/g, ' ');
- }
- 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('');
- };
- }
-
- var pr_chunkPattern = new RegExp(
- '[^<]+' // A run of characters other than '<'
- + '|<\!--[\\s\\S]*?--\>' // an HTML comment
- + '|<!\\[CDATA\\[[\\s\\S]*?\\]\\]>' // a CDATA section
- // a probable tag that should not be highlighted
- + '|<\/?[a-zA-Z](?:[^>\"\']|\'[^\']*\'|\"[^\"]*\")*>'
- + '|<', // A '<' that does not begin a larger chunk
- 'g');
- var pr_commentPrefix = /^<\!--/;
- var pr_cdataPrefix = /^<!\[CDATA\[/;
- var pr_brPrefix = /^<br\b/i;
- var pr_tagNameRe = /^<(\/?)([a-zA-Z][a-zA-Z0-9]*)/;
-
- /** 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;
- var j;
- end_tag_loop:
- for (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/);
- }
-
- /**
- * 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 = {
- source: sourceCode,
- basePos: basePos
- };
- langHandler(job);
- out.push.apply(out, job.decorations);
- }
-
- /** 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;
- var notWs = /\S/;
-
- /**
- * Lexes job.source and produces an output array job.decorations of style
- * classes preceded by the position at which they start in job.source in
- * order.
- *
- * @param {Object} job an object like {@code
- * source: {string} sourceText plain text,
- * basePos: {int} position of job.source in the larger chunk of
- * sourceCode.
- * }
- */
- var decorate = function (job) {
- var sourceCode = job.source, 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, /^@\"(?:[^\"]|\"\")*(?:\"|$)/, null]);
- }
- if (options['hashComments']) {
- if (options['cStyleComments']) {
- // Stop C preprocessor declarations at an unclosed open comment
- shortcutStylePatterns.push(
- [PR_COMMENT, /^#(?:(?:define|elif|else|endif|error|ifdef|include|ifndef|line|pragma|undef|warning)\b|[^\r\n]*)/,
- null, '#']);
- fallthroughStylePatterns.push(
- [PR_STRING,
- /^<(?:(?:(?:\.\.\/)*|\/?)(?:[\w-]+(?:\/[\w-]+)+)?[\w-]+\.h|[a-z]\w*)>/,
- null]);
- } else {
- shortcutStylePatterns.push([PR_COMMENT, /^#[^\r\n]*/, null, '#']);
- }
- }
- if (options['cStyleComments']) {
- fallthroughStylePatterns.push([PR_COMMENT, /^\/\/[^\r\n]*/, null]);
- fallthroughStylePatterns.push(
- [PR_COMMENT, /^\/\*[\s\S]*?(?:\*\/|$)/, null]);
- }
- 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|$))+'
- // finally closed by a /.
- + '/');
- fallthroughStylePatterns.push(
- ['lang-regex',
- new RegExp('^' + REGEXP_PRECEDER_PATTERN + '(' + REGEX_LITERAL + ')')
- ]);
- }
-
- var keywords = options['keywords'].replace(/^\s+|\s+$/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']);
- 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_$@0-9]*/, null],
- [PR_PLAIN, /^[a-z_$][a-z_$@0-9]*/i, null],
- [PR_LITERAL,
- new RegExp(
- '^(?:'
- // A hex number
- + '0x[a-f0-9]+'
- // or an octal or decimal number,
- + '|(?:\\d(?:_\\d+)*\\d*(?:\\.\\d*)?|\\.\\d\\+)'
- // possibly in scientific notation
- + '(?:e[+\\-]?\\d+)?'
- + ')'
- // with an optional modifier like UL for unsigned long
- + '[a-z]*', 'i'),
- null, '0123456789'],
- [PR_PUNCTUATION, /^.[^\s\w\.$@\'\"\`\/\#]*/, null]);
-
- return createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns);
- }
-
- var decorateSource = sourceDecorator({
- 'keywords': ALL_KEYWORDS,
- 'hashComments': true,
- 'cStyleComments': true,
- 'multiLineStrings': true,
- 'regexLiterals': true
- });
-
- /** Breaks {@code job.source} around style boundaries in
- * {@code job.decorations} while re-interleaving {@code job.extractedTags},
- * and leaves the result in {@code job.prettyPrintedHtml}.
- * @param {Object} job like {
- * source: {string} source as plain text,
- * extractedTags: {Array.<number|string>} extractedTags chunks of raw
- * html preceded by their position in {@code job.source}
- * in order
- * decorations: {Array.<number|string} an array of style classes preceded
- * by the position at which they start in job.source in order
- * }
- * @private
- */
- function recombineTagsAndDecorations(job) {
- var sourceText = job.source;
- var extractedTags = job.extractedTags;
- var decorations = job.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(window['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);
- // IE collapses multiple adjacient <br>s into 1 line break.
- // Prefix every <br> with ' ' can prevent such IE's behavior.
- var lineBreakHtml = window['_pr_isIE6']() ? ' <br />' : '<br />';
- html.push(htmlChunk.replace(newlineRe, lineBreakHtml));
- 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>');
- }
- job.prettyPrintedHtml = html.join('');
- }
-
- /** 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 {
- * source: {string} as plain text.
- * decorations: {Array.<number|string>} an array of style classes
- * preceded by the position at which they start in
- * job.source 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 ('console' in window) {
- 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
- }), ['c', 'cc', 'cpp', 'cxx', 'cyc', 'm']);
- registerLangHandler(sourceDecorator({
- 'keywords': 'null true false'
- }), ['json']);
- registerLangHandler(sourceDecorator({
- 'keywords': CSHARP_KEYWORDS,
- 'hashComments': true,
- 'cStyleComments': true,
- 'verbatimStrings': 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']);
- registerLangHandler(
- createSimpleLexer([], [[PR_STRING, /^[\s\S]+/]]), ['regex']);
-
- function applyDecorator(job) {
- var sourceCodeHtml = job.sourceCodeHtml;
- var opt_langExtension = job.langExtension;
-
- // Prepopulate output in case processing fails with an exception.
- job.prettyPrintedHtml = sourceCodeHtml;
-
- try {
- // Extract tags, and convert the source code to plain text.
- var sourceAndExtractedTags = extractTags(sourceCodeHtml);
- /** Plain text. @type {string} */
- var source = sourceAndExtractedTags.source;
- job.source = source;
- job.basePos = 0;
-
- /** Even entries are positions in source in ascending order. Odd entries
- * are tags that were extracted at that position.
- * @type {Array.<number|string>}
- */
- job.extractedTags = sourceAndExtractedTags.tags;
-
- // Apply the appropriate language handler
- langHandlerForExtension(opt_langExtension, source)(job);
- // Integrate the decorations and tags back into the source code to produce
- // a decorated html string which is left in job.prettyPrintedHtml.
- recombineTagsAndDecorations(job);
- } catch (e) {
- if ('console' in window) {
- console.log(e);
- console.trace();
- }
- }
- }
-
- function prettyPrintOne(sourceCodeHtml, opt_langExtension) {
- var job = {
- sourceCodeHtml: sourceCodeHtml,
- langExtension: opt_langExtension
- };
- applyDecorator(job);
- return job.prettyPrintedHtml;
- }
-
- function prettyPrint(opt_whenDone) {
- var isIE678 = window['_pr_isIE6']();
- var ieNewline = isIE678 === 6 ? '\r\n' : '\r';
- // See bug 71 and http://stackoverflow.com/questions/136443/why-doesnt-ie7-
-
- // 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, 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).getTime(); } };
- }
-
- // 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;
-
- function doWork() {
- var endTime = (window['PR_SHOULD_USE_CONTINUATION'] ?
- clock.now() + 250 /* ms */ :
- Infinity);
- for (; k < elements.length && clock.now() < 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
- prettyPrintingJob = {
- sourceCodeHtml: content,
- langExtension: langExtension,
- sourceNode: cs
- };
- applyDecorator(prettyPrintingJob);
- replaceWithPrettyPrintedHtml();
- }
- }
- }
- if (k < elements.length) {
- // finish up in a continuation
- setTimeout(doWork, 250);
- } else if (opt_whenDone) {
- opt_whenDone();
- }
- }
-
- function replaceWithPrettyPrintedHtml() {
- var newContent = prettyPrintingJob.prettyPrintedHtml;
- if (!newContent) { return; }
- var cs = prettyPrintingJob.sourceNode;
-
- // 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 (isIE678 && cs.tagName === 'PRE') {
- var lineBreaks = cs.getElementsByTagName('br');
- for (var j = lineBreaks.length; --j >= 0;) {
- var lineBreak = lineBreaks[j];
- lineBreak.parentNode.replaceChild(
- document.createTextNode(ieNewline), lineBreak);
- }
- }
- }
-
- doWork();
- }
-
- window['PR_normalizedHtml'] = normalizedHtml;
- window['prettyPrintOne'] = prettyPrintOne;
- window['prettyPrint'] = prettyPrint;
- window['PR'] = {
- 'combinePrefixPatterns': combinePrefixPatterns,
- '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
- };
-})();
git.quilime.com / quilime.com.git / commitdiff