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/*
* Copyright (C) 2010-2015 Gordon Fraser, Andrea Arcuri and EvoSuite
* contributors
*
* This file is part of EvoSuite.
*
* EvoSuite is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser Public License as published by the
* Free Software Foundation, either version 3.0 of the License, or (at your
* option) any later version.
*
* EvoSuite is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser Public License for more details.
*
* You should have received a copy of the GNU Lesser Public License along
* with EvoSuite. If not, see and tags in your source with class=prettyprint.
* You can also use the (html deprecated) 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.
*/
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 */
window['_pr_isIE6'] = function () {
var isIE6 = navigator && navigator.userAgent &&
/\bMSIE 6\./.test(navigator.userAgent);
window['_pr_isIE6'] = function () { return isIE6; };
return isIE6;
};
(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 ";
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 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_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;
}
}
/**
* 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.<RegExpr>} 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.
var groupIndex;
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);
}
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-zA-Z][^>]*>' // a probable tag that should not be highlighted
+ '|<', // 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]+)/;
/** 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;
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 && match[1])) {
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;
var lang = style.substring(5);
var size = decorations.length - 10;
// 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['hashComments']) {
if (options['cStyleComments']) {
// Stop C preprocessor declarations at an unclosed open comment
shortcutStylePatterns.push(
[PR_COMMENT, /^#(?:[^\r\n\/]|\/(?!\*)|\/\*[^\r\n]*?\*\/)*/,
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]+?)(?:%>|$)/],
[PR_PUNCTUATION, /^(?:<[%?]|[%?]>)/],
['lang-', /^<xmp\b[^>]*>([\s\S]+?)<\/xmp\b[^>]*>/i],
// Unescaped content in javascript. (Or possibly vbscript).
['lang-js', /^<script\b[^>]*>([\s\S]+?)<\/script\b[^>]*>/i],
// Contains unescaped stylesheet content
['lang-css', /^<style\b[^>]*>([\s\S]+?)<\/style\b[^>]*>/i],
['lang-in.tag', /^(<\/?[a-z][^<>]*>)/i]
]),
['default-markup', 'htm', 'html', 'mxml', 'xhtml', 'xml', 'xsl']);
registerLangHandler(
createSimpleLexer(
[
[PR_PLAIN, /^[\s]+/, null, ' \t\r\n'],
[PR_ATTRIB_VALUE, /^(?:\"[^\"]*\"?|\'[^\']*\'?)/, null, '\"\'']
],
[
[PR_TAG, /^^<\/?[a-z](?:[\w:-]*\w)?|\/?>$/],
[PR_ATTRIB_NAME, /^(?!style\b|on)[a-z](?:[\w:-]*\w)?/],
['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', /^sty\w+\s*=\s*\"([^\"]+)\"/i],
['lang-css', /^sty\w+\s*=\s*\'([^\']+)\'/i],
['lang-css', /^sty\w+\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
}), ['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 isIE6 = window['_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, 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 (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'), 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
};
})();
</code></pre> <br/>
<br/>
<div class='clear'></div>
</main>
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