--- a
+++ b/tests/js/jslint.js
@@ -0,0 +1,5722 @@
+// jslint.js
+// 2010-08-05
+
+/*
+Copyright (c) 2002 Douglas Crockford  (www.JSLint.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+/*
+    JSLINT is a global function. It takes two parameters.
+
+        var myResult = JSLINT(source, option);
+
+    The first parameter is either a string or an array of strings. If it is a
+    string, it will be split on '\n' or '\r'. If it is an array of strings, it
+    is assumed that each string represents one line. The source can be a
+    JavaScript text, or HTML text, or a Konfabulator text.
+
+    The second parameter is an optional object of options which control the
+    operation of JSLINT. Most of the options are booleans: They are all are
+    optional and have a default value of false.
+
+    If it checks out, JSLINT returns true. Otherwise, it returns false.
+
+    If false, you can inspect JSLINT.errors to find out the problems.
+    JSLINT.errors is an array of objects containing these members:
+
+    {
+        line      : The line (relative to 0) at which the lint was found
+        character : The character (relative to 0) at which the lint was found
+        reason    : The problem
+        evidence  : The text line in which the problem occurred
+        raw       : The raw message before the details were inserted
+        a         : The first detail
+        b         : The second detail
+        c         : The third detail
+        d         : The fourth detail
+    }
+
+    If a fatal error was found, a null will be the last element of the
+    JSLINT.errors array.
+
+    You can request a Function Report, which shows all of the functions
+    and the parameters and vars that they use. This can be used to find
+    implied global variables and other problems. The report is in HTML and
+    can be inserted in an HTML <body>.
+
+        var myReport = JSLINT.report(limited);
+
+    If limited is true, then the report will be limited to only errors.
+
+    You can request a data structure which contains JSLint's results.
+
+        var myData = JSLINT.data();
+
+    It returns a structure with this form:
+
+    {
+        errors: [
+            {
+                line: NUMBER,
+                character: NUMBER,
+                reason: STRING,
+                evidence: STRING
+            }
+        ],
+        functions: [
+            name: STRING,
+            line: NUMBER,
+            last: NUMBER,
+            param: [
+                STRING
+            ],
+            closure: [
+                STRING
+            ],
+            var: [
+                STRING
+            ],
+            exception: [
+                STRING
+            ],
+            outer: [
+                STRING
+            ],
+            unused: [
+                STRING
+            ],
+            global: [
+                STRING
+            ],
+            label: [
+                STRING
+            ]
+        ],
+        globals: [
+            STRING
+        ],
+        member: {
+            STRING: NUMBER
+        },
+        unuseds: [
+            {
+                name: STRING,
+                line: NUMBER
+            }
+        ],
+        implieds: [
+            {
+                name: STRING,
+                line: NUMBER
+            }
+        ],
+        urls: [
+            STRING
+        ],
+        json: BOOLEAN
+    }
+
+    Empty arrays will not be included.
+
+*/
+
+/*jslint
+    evil: true, nomen: false, onevar: false, regexp: false, strict: true
+*/
+
+/*members "\b", "\t", "\n", "\f", "\r", "!=", "!==", "\"", "%",
+    "(begin)", "(breakage)", "(context)", "(error)", "(global)",
+    "(identifier)", "(last)", "(line)", "(loopage)", "(name)", "(onevar)",
+    "(params)", "(scope)", "(verb)", "*", "+", "++", "-", "--", "\/",
+    "<", "<=", "==", "===", ">", ">=", ADSAFE, ActiveXObject,
+    Array, Boolean, COM, CScript, Canvas, CustomAnimation, Date, Debug, E,
+    Enumerator, Error, EvalError, FadeAnimation, Flash, FormField, Frame,
+    Function, HotKey, Image, JSON, LN10, LN2, LOG10E, LOG2E, MAX_VALUE,
+    MIN_VALUE, Math, MenuItem, MoveAnimation, NEGATIVE_INFINITY, Number,
+    Object, Option, PI, POSITIVE_INFINITY, Point, RangeError, Rectangle,
+    ReferenceError, RegExp, ResizeAnimation, RotateAnimation, SQRT1_2,
+    SQRT2, ScrollBar, String, Style, SyntaxError, System, Text, TextArea,
+    Timer, TypeError, URIError, URL, VBArray, WScript, Web, Window, XMLDOM,
+    XMLHttpRequest, "\\", a, abbr, acronym, addEventListener, address,
+    adsafe, alert, aliceblue, animator, antiquewhite, appleScript, applet,
+    apply, approved, aqua, aquamarine, area, arguments, arity, article,
+    aside, audio, autocomplete, azure, b, background,
+    "background-attachment", "background-color", "background-image",
+    "background-position", "background-repeat", base, bdo, beep, beige, big,
+    bisque, bitwise, black, blanchedalmond, block, blockquote, blue,
+    blueviolet, blur, body, border, "border-bottom", "border-bottom-color",
+    "border-bottom-style", "border-bottom-width", "border-collapse",
+    "border-color", "border-left", "border-left-color", "border-left-style",
+    "border-left-width", "border-right", "border-right-color",
+    "border-right-style", "border-right-width", "border-spacing",
+    "border-style", "border-top", "border-top-color", "border-top-style",
+    "border-top-width", "border-width", bottom, br, brown, browser,
+    burlywood, button, bytesToUIString, c, cadetblue, call, callee, caller,
+    canvas, cap, caption, "caption-side", cases, center, charAt, charCodeAt,
+    character, chartreuse, chocolate, chooseColor, chooseFile, chooseFolder,
+    cite, clear, clearInterval, clearTimeout, clip, close, closeWidget,
+    closed, closure, cm, code, col, colgroup, color, command, comment,
+    condition, confirm, console, constructor, content, convertPathToHFS,
+    convertPathToPlatform, coral, cornflowerblue, cornsilk,
+    "counter-increment", "counter-reset", create, crimson, css, cursor,
+    cyan, d, darkblue, darkcyan, darkgoldenrod, darkgray, darkgreen,
+    darkkhaki, darkmagenta, darkolivegreen, darkorange, darkorchid, darkred,
+    darksalmon, darkseagreen, darkslateblue, darkslategray, darkturquoise,
+    darkviolet, data, datalist, dd, debug, decodeURI, decodeURIComponent,
+    deeppink, deepskyblue, defaultStatus, defineClass, del, deserialize,
+    details, devel, dfn, dialog, dimension, dimgray, dir, direction,
+    display, div, dl, document, dodgerblue, dt, edition, else, em, embed,
+    empty, "empty-cells", encodeURI, encodeURIComponent, entityify, eqeqeq,
+    errors, es5, escape, eval, event, evidence, evil, ex, exception, exec, exps,
+    fieldset, figure, filesystem, firebrick, first, float, floor,
+    floralwhite, focus, focusWidget, font, "font-face", "font-family",
+    "font-size", "font-size-adjust", "font-stretch", "font-style",
+    "font-variant", "font-weight", footer, forestgreen, forin, form,
+    fragment, frame, frames, frameset, from, fromCharCode, fuchsia, fud,
+    funct, function, functions, g, gainsboro, gc, getComputedStyle,
+    ghostwhite, global, globals, gold, goldenrod, gray, green, greenyellow,
+    h1, h2, h3, h4, h5, h6, hasOwnProperty, head, header, height, help,
+    hgroup, history, honeydew, hotpink, hr, 'hta:application', html,
+    i, iTunes, id, identifier,
+    iframe, img, immed, implieds, in, include, indent, indexOf, indianred,
+    indigo, init, input, ins, isAlpha, isApplicationRunning, isDigit,
+    isFinite, isNaN, ivory, join, jslint, json, kbd, keygen, khaki,
+    konfabulatorVersion, label, labelled, lang, last, lavender,
+    lavenderblush, lawngreen, laxbreak, lbp, led, left, legend,
+    lemonchiffon, length, "letter-spacing", li, lib, lightblue, lightcoral,
+    lightcyan, lightgoldenrodyellow, lightgreen, lightpink, lightsalmon,
+    lightseagreen, lightskyblue, lightslategray, lightsteelblue,
+    lightyellow, lime, limegreen, line, "line-height", linen, link,
+    "list-style", "list-style-image", "list-style-position",
+    "list-style-type", load, loadClass, location, log, m, magenta, map,
+    margin, "margin-bottom", "margin-left", "margin-right", "margin-top",
+    mark, "marker-offset", maroon, match, "max-height", "max-width", maxerr,
+    maxlen, md5, media, mediumaquamarine, mediumblue, mediumorchid,
+    mediumpurple, mediumseagreen, mediumslateblue, mediumspringgreen,
+    mediumturquoise, mediumvioletred, member, menu, message, meta, meter,
+    midnightblue, "min-height", "min-width", mintcream, mistyrose, mm,
+    moccasin, moveBy, moveTo, name, nav, navajowhite, navigator, navy, new,
+    newcap, noframes, nomen, noscript, nud, object, ol, oldlace, olive,
+    olivedrab, on, onbeforeunload, onblur, onerror, onevar, onfocus, onload,
+    onresize, onunload, opacity, open, openURL, opener, opera, optgroup,
+    option, orange, orangered, orchid, outer, outline, "outline-color",
+    "outline-style", "outline-width", output, overflow, "overflow-x",
+    "overflow-y", p, padding, "padding-bottom", "padding-left",
+    "padding-right", "padding-top", page, "page-break-after",
+    "page-break-before", palegoldenrod, palegreen, paleturquoise,
+    palevioletred, papayawhip, param, parent, parseFloat, parseInt,
+    passfail, pc, peachpuff, peru, pink, play, plum, plusplus, pop,
+    popupMenu, position, powderblue, pre, predef, preferenceGroups,
+    preferences, print, progress, prompt, prototype, pt, purple, push, px,
+    q, quit, quotes, random, range, raw, reach, readFile, readUrl, reason,
+    red, regexp, reloadWidget, removeEventListener, replace, report,
+    reserved, resizeBy, resizeTo, resolvePath, resumeUpdates, rhino, right,
+    rosybrown, royalblue, rp, rt, ruby, runCommand, runCommandInBg,
+    saddlebrown, safe, salmon, samp, sandybrown, saveAs, savePreferences,
+    screen, script, scroll, scrollBy, scrollTo, seagreen, seal, search,
+    seashell, section, select, serialize, setInterval, setTimeout, shift,
+    showWidgetPreferences, sienna, silver, skyblue, slateblue, slategray,
+    sleep, slice, small, snow, sort, source, span, spawn, speak, split,
+    springgreen, src, stack, status, steelblue, strict, strong, style,
+    styleproperty, sub, substr, sup, supplant, suppressUpdates, sync,
+    system, table, "table-layout", tan, tbody, td, teal, tellWidget, test,
+    "text-align", "text-decoration", "text-indent", "text-shadow",
+    "text-transform", textarea, tfoot, th, thead, thistle, time, title,
+    toLowerCase, toString, toUpperCase, toint32, token, tomato, top, tr, tt,
+    turquoise, type, u, ul, undef, unescape, "unicode-bidi", unused,
+    unwatch, updateNow, urls, value, valueOf, var, version,
+    "vertical-align", video, violet, visibility, watch, wheat, white,
+    "white-space", whitesmoke, widget, width, windows, "word-spacing",
+    "word-wrap", yahooCheckLogin, yahooLogin, yahooLogout, yellow,
+    yellowgreen, "z-index"
+*/
+
+// We build the application inside a function so that we produce only a single
+// global variable. The function will be invoked, its return value is the JSLINT
+// application itself.
+
+"use strict";
+
+var JSLINT = (function () {
+    var adsafe_id,      // The widget's ADsafe id.
+        adsafe_may,     // The widget may load approved scripts.
+        adsafe_went,    // ADSAFE.go has been called.
+        anonname,       // The guessed name for anonymous functions.
+        approved,       // ADsafe approved urls.
+
+        atrule = {
+            media      : true,
+            'font-face': true,
+            page       : true
+        },
+
+// These are operators that should not be used with the ! operator.
+
+        bang = {
+            '<': true,
+            '<=': true,
+            '==': true,
+            '===': true,
+            '!==': true,
+            '!=': true,
+            '>': true,
+            '>=': true,
+            '+': true,
+            '-': true,
+            '*': true,
+            '/': true,
+            '%': true
+        },
+
+// These are members that should not be permitted in the safe subset.
+
+        banned = {              // the member names that ADsafe prohibits.
+            'arguments'     : true,
+            callee          : true,
+            caller          : true,
+            constructor     : true,
+            'eval'          : true,
+            prototype       : true,
+            stack           : true,
+            unwatch         : true,
+            valueOf         : true,
+            watch           : true
+        },
+
+
+// These are the JSLint boolean options.
+
+        boolOptions = {
+            adsafe     : true, // if ADsafe should be enforced
+            bitwise    : true, // if bitwise operators should not be allowed
+            browser    : true, // if the standard browser globals should be predefined
+            cap        : true, // if upper case HTML should be allowed
+            css        : true, // if CSS workarounds should be tolerated
+            debug      : true, // if debugger statements should be allowed
+            devel      : true, // if logging should be allowed (console, alert, etc.)
+            eqeqeq     : true, // if === should be required
+            es5        : true, // if ES5 syntax should be allowed
+            evil       : true, // if eval should be allowed
+            forin      : true, // if for in statements must filter
+            fragment   : true, // if HTML fragments should be allowed
+            immed      : true, // if immediate invocations must be wrapped in parens
+            laxbreak   : true, // if line breaks should not be checked
+            newcap     : true, // if constructor names must be capitalized
+            nomen      : true, // if names should be checked
+            on         : true, // if HTML event handlers should be allowed
+            onevar     : true, // if only one var statement per function should be allowed
+            passfail   : true, // if the scan should stop on first error
+            plusplus   : true, // if increment/decrement should not be allowed
+            regexp     : true, // if the . should not be allowed in regexp literals
+            rhino      : true, // if the Rhino environment globals should be predefined
+            undef      : true, // if variables should be declared before used
+            safe       : true, // if use of some browser features should be restricted
+            windows    : true, // if MS Windows-specigic globals should be predefined
+            strict     : true, // require the "use strict"; pragma
+            sub        : true, // if all forms of subscript notation are tolerated
+            white      : true, // if strict whitespace rules apply
+            widget     : true  // if the Yahoo Widgets globals should be predefined
+        },
+
+// browser contains a set of global names which are commonly provided by a
+// web browser environment.
+
+        browser = {
+            addEventListener: false,
+            blur            : false,
+            clearInterval   : false,
+            clearTimeout    : false,
+            close           : false,
+            closed          : false,
+            defaultStatus   : false,
+            document        : false,
+            event           : false,
+            focus           : false,
+            frames          : false,
+            getComputedStyle: false,
+            history         : false,
+            Image           : false,
+            length          : false,
+            location        : false,
+            moveBy          : false,
+            moveTo          : false,
+            name            : false,
+            navigator       : false,
+            onbeforeunload  : true,
+            onblur          : true,
+            onerror         : true,
+            onfocus         : true,
+            onload          : true,
+            onresize        : true,
+            onunload        : true,
+            open            : false,
+            opener          : false,
+            Option          : false,
+            parent          : false,
+            print           : false,
+            removeEventListener: false,
+            resizeBy        : false,
+            resizeTo        : false,
+            screen          : false,
+            scroll          : false,
+            scrollBy        : false,
+            scrollTo        : false,
+            setInterval     : false,
+            setTimeout      : false,
+            status          : false,
+            top             : false,
+            XMLHttpRequest  : false
+        },
+
+        cssAttributeData,
+        cssAny,
+
+        cssColorData = {
+            "aliceblue"             : true,
+            "antiquewhite"          : true,
+            "aqua"                  : true,
+            "aquamarine"            : true,
+            "azure"                 : true,
+            "beige"                 : true,
+            "bisque"                : true,
+            "black"                 : true,
+            "blanchedalmond"        : true,
+            "blue"                  : true,
+            "blueviolet"            : true,
+            "brown"                 : true,
+            "burlywood"             : true,
+            "cadetblue"             : true,
+            "chartreuse"            : true,
+            "chocolate"             : true,
+            "coral"                 : true,
+            "cornflowerblue"        : true,
+            "cornsilk"              : true,
+            "crimson"               : true,
+            "cyan"                  : true,
+            "darkblue"              : true,
+            "darkcyan"              : true,
+            "darkgoldenrod"         : true,
+            "darkgray"              : true,
+            "darkgreen"             : true,
+            "darkkhaki"             : true,
+            "darkmagenta"           : true,
+            "darkolivegreen"        : true,
+            "darkorange"            : true,
+            "darkorchid"            : true,
+            "darkred"               : true,
+            "darksalmon"            : true,
+            "darkseagreen"          : true,
+            "darkslateblue"         : true,
+            "darkslategray"         : true,
+            "darkturquoise"         : true,
+            "darkviolet"            : true,
+            "deeppink"              : true,
+            "deepskyblue"           : true,
+            "dimgray"               : true,
+            "dodgerblue"            : true,
+            "firebrick"             : true,
+            "floralwhite"           : true,
+            "forestgreen"           : true,
+            "fuchsia"               : true,
+            "gainsboro"             : true,
+            "ghostwhite"            : true,
+            "gold"                  : true,
+            "goldenrod"             : true,
+            "gray"                  : true,
+            "green"                 : true,
+            "greenyellow"           : true,
+            "honeydew"              : true,
+            "hotpink"               : true,
+            "indianred"             : true,
+            "indigo"                : true,
+            "ivory"                 : true,
+            "khaki"                 : true,
+            "lavender"              : true,
+            "lavenderblush"         : true,
+            "lawngreen"             : true,
+            "lemonchiffon"          : true,
+            "lightblue"             : true,
+            "lightcoral"            : true,
+            "lightcyan"             : true,
+            "lightgoldenrodyellow"  : true,
+            "lightgreen"            : true,
+            "lightpink"             : true,
+            "lightsalmon"           : true,
+            "lightseagreen"         : true,
+            "lightskyblue"          : true,
+            "lightslategray"        : true,
+            "lightsteelblue"        : true,
+            "lightyellow"           : true,
+            "lime"                  : true,
+            "limegreen"             : true,
+            "linen"                 : true,
+            "magenta"               : true,
+            "maroon"                : true,
+            "mediumaquamarine"      : true,
+            "mediumblue"            : true,
+            "mediumorchid"          : true,
+            "mediumpurple"          : true,
+            "mediumseagreen"        : true,
+            "mediumslateblue"       : true,
+            "mediumspringgreen"     : true,
+            "mediumturquoise"       : true,
+            "mediumvioletred"       : true,
+            "midnightblue"          : true,
+            "mintcream"             : true,
+            "mistyrose"             : true,
+            "moccasin"              : true,
+            "navajowhite"           : true,
+            "navy"                  : true,
+            "oldlace"               : true,
+            "olive"                 : true,
+            "olivedrab"             : true,
+            "orange"                : true,
+            "orangered"             : true,
+            "orchid"                : true,
+            "palegoldenrod"         : true,
+            "palegreen"             : true,
+            "paleturquoise"         : true,
+            "palevioletred"         : true,
+            "papayawhip"            : true,
+            "peachpuff"             : true,
+            "peru"                  : true,
+            "pink"                  : true,
+            "plum"                  : true,
+            "powderblue"            : true,
+            "purple"                : true,
+            "red"                   : true,
+            "rosybrown"             : true,
+            "royalblue"             : true,
+            "saddlebrown"           : true,
+            "salmon"                : true,
+            "sandybrown"            : true,
+            "seagreen"              : true,
+            "seashell"              : true,
+            "sienna"                : true,
+            "silver"                : true,
+            "skyblue"               : true,
+            "slateblue"             : true,
+            "slategray"             : true,
+            "snow"                  : true,
+            "springgreen"           : true,
+            "steelblue"             : true,
+            "tan"                   : true,
+            "teal"                  : true,
+            "thistle"               : true,
+            "tomato"                : true,
+            "turquoise"             : true,
+            "violet"                : true,
+            "wheat"                 : true,
+            "white"                 : true,
+            "whitesmoke"            : true,
+            "yellow"                : true,
+            "yellowgreen"           : true
+        },
+
+        cssBorderStyle,
+        cssBreak,
+
+        cssLengthData = {
+            '%': true,
+            'cm': true,
+            'em': true,
+            'ex': true,
+            'in': true,
+            'mm': true,
+            'pc': true,
+            'pt': true,
+            'px': true
+        },
+
+        cssOverflow,
+
+        devel = {
+            alert           : false,
+            confirm         : false,
+            console         : false,
+            Debug           : false,
+            opera           : false,
+            prompt          : false
+        },
+
+        escapes = {
+            '\b': '\\b',
+            '\t': '\\t',
+            '\n': '\\n',
+            '\f': '\\f',
+            '\r': '\\r',
+            '"' : '\\"',
+            '/' : '\\/',
+            '\\': '\\\\'
+        },
+
+        funct,          // The current function
+
+        functionicity = [
+            'closure', 'exception', 'global', 'label',
+            'outer', 'unused', 'var'
+        ],
+
+        functions,      // All of the functions
+
+        global,         // The global scope
+        htmltag = {
+            a:        {},
+            abbr:     {},
+            acronym:  {},
+            address:  {},
+            applet:   {},
+            area:     {empty: true, parent: ' map '},
+            article:  {},
+            aside:    {},
+            audio:    {},
+            b:        {},
+            base:     {empty: true, parent: ' head '},
+            bdo:      {},
+            big:      {},
+            blockquote: {},
+            body:     {parent: ' html noframes '},
+            br:       {empty: true},
+            button:   {},
+            canvas:   {parent: ' body p div th td '},
+            caption:  {parent: ' table '},
+            center:   {},
+            cite:     {},
+            code:     {},
+            col:      {empty: true, parent: ' table colgroup '},
+            colgroup: {parent: ' table '},
+            command:  {parent: ' menu '},
+            datalist: {},
+            dd:       {parent: ' dl '},
+            del:      {},
+            details:  {},
+            dialog:   {},
+            dfn:      {},
+            dir:      {},
+            div:      {},
+            dl:       {},
+            dt:       {parent: ' dl '},
+            em:       {},
+            embed:    {},
+            fieldset: {},
+            figure:   {},
+            font:     {},
+            footer:   {},
+            form:     {},
+            frame:    {empty: true, parent: ' frameset '},
+            frameset: {parent: ' html frameset '},
+            h1:       {},
+            h2:       {},
+            h3:       {},
+            h4:       {},
+            h5:       {},
+            h6:       {},
+            head:     {parent: ' html '},
+            header:   {},
+            hgroup:   {},
+            hr:       {empty: true},
+            'hta:application':
+                      {empty: true, parent: ' head '},
+            html:     {parent: '*'},
+            i:        {},
+            iframe:   {},
+            img:      {empty: true},
+            input:    {empty: true},
+            ins:      {},
+            kbd:      {},
+            keygen:   {},
+            label:    {},
+            legend:   {parent: ' details fieldset figure '},
+            li:       {parent: ' dir menu ol ul '},
+            link:     {empty: true, parent: ' head '},
+            map:      {},
+            mark:     {},
+            menu:     {},
+            meta:     {empty: true, parent: ' head noframes noscript '},
+            meter:    {},
+            nav:      {},
+            noframes: {parent: ' html body '},
+            noscript: {},
+            object:   {},
+            ol:       {},
+            optgroup: {parent: ' select '},
+            option:   {parent: ' optgroup select '},
+            output:   {},
+            p:        {},
+            param:    {parent: ' applet object '},
+            pre:      {},
+            progress: {},
+            q:        {},
+            rp:       {},
+            rt:       {},
+            ruby:     {},
+            samp:     {},
+            script:   {empty: true, parent: ' body div frame head iframe p pre span '},
+            section:  {},
+            select:   {},
+            small:    {},
+            span:     {},
+            source:   {},
+            strong:   {},
+            style:    {parent: ' head ', empty: true},
+            sub:      {},
+            sup:      {},
+            table:    {},
+            tbody:    {parent: ' table '},
+            td:       {parent: ' tr '},
+            textarea: {},
+            tfoot:    {parent: ' table '},
+            th:       {parent: ' tr '},
+            thead:    {parent: ' table '},
+            time:     {},
+            title:    {parent: ' head '},
+            tr:       {parent: ' table tbody thead tfoot '},
+            tt:       {},
+            u:        {},
+            ul:       {},
+            'var':    {},
+            video:    {}
+        },
+
+        ids,            // HTML ids
+        implied,        // Implied globals
+        inblock,
+        indent,
+        jsonmode,
+        lines,
+        lookahead,
+        member,
+        membersOnly,
+        nexttoken,
+        noreach,
+        option,
+        predefined,     // Global variables defined by option
+        prereg,
+        prevtoken,
+
+        rhino = {
+            defineClass : false,
+            deserialize : false,
+            gc          : false,
+            help        : false,
+            load        : false,
+            loadClass   : false,
+            print       : false,
+            quit        : false,
+            readFile    : false,
+            readUrl     : false,
+            runCommand  : false,
+            seal        : false,
+            serialize   : false,
+            spawn       : false,
+            sync        : false,
+            toint32     : false,
+            version     : false
+        },
+
+        scope,      // The current scope
+
+        windows = {
+            ActiveXObject: false,
+            CScript      : false,
+            Debug        : false,
+            Enumerator   : false,
+            System       : false,
+            VBArray      : false,
+            WScript      : false
+        },
+
+        src,
+        stack,
+
+// standard contains the global names that are provided by the
+// ECMAScript standard.
+
+        standard = {
+            Array               : false,
+            Boolean             : false,
+            Date                : false,
+            decodeURI           : false,
+            decodeURIComponent  : false,
+            encodeURI           : false,
+            encodeURIComponent  : false,
+            Error               : false,
+            'eval'              : false,
+            EvalError           : false,
+            Function            : false,
+            hasOwnProperty      : false,
+            isFinite            : false,
+            isNaN               : false,
+            JSON                : false,
+            Math                : false,
+            Number              : false,
+            Object              : false,
+            parseInt            : false,
+            parseFloat          : false,
+            RangeError          : false,
+            ReferenceError      : false,
+            RegExp              : false,
+            String              : false,
+            SyntaxError         : false,
+            TypeError           : false,
+            URIError            : false
+        },
+
+        standard_member = {
+            E                   : true,
+            LN2                 : true,
+            LN10                : true,
+            LOG2E               : true,
+            LOG10E              : true,
+            PI                  : true,
+            SQRT1_2             : true,
+            SQRT2               : true,
+            MAX_VALUE           : true,
+            MIN_VALUE           : true,
+            NEGATIVE_INFINITY   : true,
+            POSITIVE_INFINITY   : true
+        },
+
+        strict_mode,
+        syntax = {},
+        tab,
+        token,
+        urls,
+        warnings,
+
+// widget contains the global names which are provided to a Yahoo
+// (fna Konfabulator) widget.
+
+        widget = {
+            alert                   : true,
+            animator                : true,
+            appleScript             : true,
+            beep                    : true,
+            bytesToUIString         : true,
+            Canvas                  : true,
+            chooseColor             : true,
+            chooseFile              : true,
+            chooseFolder            : true,
+            closeWidget             : true,
+            COM                     : true,
+            convertPathToHFS        : true,
+            convertPathToPlatform   : true,
+            CustomAnimation         : true,
+            escape                  : true,
+            FadeAnimation           : true,
+            filesystem              : true,
+            Flash                   : true,
+            focusWidget             : true,
+            form                    : true,
+            FormField               : true,
+            Frame                   : true,
+            HotKey                  : true,
+            Image                   : true,
+            include                 : true,
+            isApplicationRunning    : true,
+            iTunes                  : true,
+            konfabulatorVersion     : true,
+            log                     : true,
+            md5                     : true,
+            MenuItem                : true,
+            MoveAnimation           : true,
+            openURL                 : true,
+            play                    : true,
+            Point                   : true,
+            popupMenu               : true,
+            preferenceGroups        : true,
+            preferences             : true,
+            print                   : true,
+            prompt                  : true,
+            random                  : true,
+            Rectangle               : true,
+            reloadWidget            : true,
+            ResizeAnimation         : true,
+            resolvePath             : true,
+            resumeUpdates           : true,
+            RotateAnimation         : true,
+            runCommand              : true,
+            runCommandInBg          : true,
+            saveAs                  : true,
+            savePreferences         : true,
+            screen                  : true,
+            ScrollBar               : true,
+            showWidgetPreferences   : true,
+            sleep                   : true,
+            speak                   : true,
+            Style                   : true,
+            suppressUpdates         : true,
+            system                  : true,
+            tellWidget              : true,
+            Text                    : true,
+            TextArea                : true,
+            Timer                   : true,
+            unescape                : true,
+            updateNow               : true,
+            URL                     : true,
+            Web                     : true,
+            widget                  : true,
+            Window                  : true,
+            XMLDOM                  : true,
+            XMLHttpRequest          : true,
+            yahooCheckLogin         : true,
+            yahooLogin              : true,
+            yahooLogout             : true
+        },
+
+//  xmode is used to adapt to the exceptions in html parsing.
+//  It can have these states:
+//      false   .js script file
+//      html
+//      outer
+//      script
+//      style
+//      scriptstring
+//      styleproperty
+
+        xmode,
+        xquote,
+
+// unsafe comment or string
+        ax = /@cc|<\/?|script|\]*s\]|<\s*!|&lt/i,
+// unsafe characters that are silently deleted by one or more browsers
+// Whitelist Replacement Char, 0xfffd
+        cx = /[\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\ufffc\ufffe-\uffff]/,
+// token
+        tx = /^\s*([(){}\[.,:;'"~\?\]#@]|==?=?|\/(\*(jslint|members?|global)?|=|\/)?|\*[\/=]?|\+(?:=|\++)?|-(?:=|-+)?|%=?|&[&=]?|\|[|=]?|>>?>?=?|<([\/=!]|\!(\[|--)?|<=?)?|\^=?|\!=?=?|[a-zA-Z_$][a-zA-Z0-9_$]*|[0-9]+([xX][0-9a-fA-F]+|\.[0-9]*)?([eE][+\-]?[0-9]+)?)/,
+// html token
+        hx = /^\s*(['"=>\/&#]|<(?:\/|\!(?:--)?)?|[a-zA-Z][a-zA-Z0-9_\-:]*|[0-9]+|--)/,
+// characters in strings that need escapement
+        nx = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/,
+        nxg = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
+// outer html token
+        ox = /[>&]|<[\/!]?|--/,
+// star slash
+        lx = /\*\/|\/\*/,
+// identifier
+        ix = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/,
+// javascript url
+        jx = /^(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i,
+// url badness
+        ux = /&|\+|\u00AD|\.\.|\/\*|%[^;]|base64|url|expression|data|mailto/i,
+// style
+        sx = /^\s*([{:#%.=,>+\[\]@()"';]|\*=?|\$=|\|=|\^=|~=|[a-zA-Z_][a-zA-Z0-9_\-]*|[0-9]+|<\/|\/\*)/,
+        ssx = /^\s*([@#!"'};:\-%.=,+\[\]()*_]|[a-zA-Z][a-zA-Z0-9._\-]*|\/\*?|\d+(?:\.\d+)?|<\/)/,
+// attributes characters
+        //qx = /[^a-zA-Z0-9+\-_\/ ]/,
+        qx = /[^a-zA-Z0-9+\-_\/ .]/, // We want dots in names, period
+// query characters for ids
+        //dx = /[\[\]\/\\"'*<>.&:(){}+=#]/,
+        // allow . and /
+        dx = /[\[\]\\"'*<>&:(){}+=#]/,
+
+        rx = {
+            outer: hx,
+            html: hx,
+            style: sx,
+            styleproperty: ssx
+        };
+
+    function F() {}
+
+    if (typeof Object.create !== 'function') {
+        Object.create = function (o) {
+            F.prototype = o;
+            return new F();
+        };
+    }
+
+
+    function is_own(object, name) {
+        return Object.prototype.hasOwnProperty.call(object, name);
+    }
+
+
+    function combine(t, o) {
+        var n;
+        for (n in o) {
+            if (is_own(o, n)) {
+                t[n] = o[n];
+            }
+        }
+    }
+
+    String.prototype.entityify = function () {
+        return this.
+            replace(/&/g, '&amp;').
+            replace(/</g, '&lt;').
+            replace(/>/g, '&gt;');
+    };
+
+    String.prototype.isAlpha = function () {
+        return (this >= 'a' && this <= 'z\uffff') ||
+            (this >= 'A' && this <= 'Z\uffff');
+    };
+
+
+    String.prototype.isDigit = function () {
+        return (this >= '0' && this <= '9');
+    };
+
+
+    String.prototype.supplant = function (o) {
+        return this.replace(/\{([^{}]*)\}/g, function (a, b) {
+            var r = o[b];
+            return typeof r === 'string' || typeof r === 'number' ? r : a;
+        });
+    };
+
+    String.prototype.name = function () {
+
+// If the string looks like an identifier, then we can return it as is.
+// If the string contains no control characters, no quote characters, and no
+// backslash characters, then we can simply slap some quotes around it.
+// Otherwise we must also replace the offending characters with safe
+// sequences.
+
+        if (ix.test(this)) {
+            return this;
+        }
+        if (nx.test(this)) {
+            return '"' + this.replace(nxg, function (a) {
+                var c = escapes[a];
+                if (c) {
+                    return c;
+                }
+                return '\\u' + ('0000' + a.charCodeAt().toString(16)).slice(-4);
+            }) + '"';
+        }
+        return '"' + this + '"';
+    };
+
+
+    function assume() {
+        if (!option.safe) {
+            if (option.rhino) {
+                combine(predefined, rhino);
+            }
+            if (option.devel) {
+                combine(predefined, devel);
+            }
+            if (option.browser) {
+                combine(predefined, browser);
+            }
+            if (option.windows) {
+                combine(predefined, windows);
+            }
+            if (option.widget) {
+                combine(predefined, widget);
+            }
+        }
+    }
+
+
+// Produce an error warning.
+
+    function quit(m, l, ch) {
+        throw {
+            name: 'JSLintError',
+            line: l,
+            character: ch,
+            message: m + " (" + Math.floor((l / lines.length) * 100) +
+                    "% scanned)."
+        };
+    }
+
+    function warning(m, t, a, b, c, d) {
+        var ch, l, w;
+        t = t || nexttoken;
+        if (t.id === '(end)') {  // `~
+            t = token;
+        }
+        l = t.line || 0;
+        ch = t.from || 0;
+        w = {
+            id: '(error)',
+            raw: m,
+            evidence: lines[l - 1] || '',
+            line: l,
+            character: ch,
+            a: a,
+            b: b,
+            c: c,
+            d: d
+        };
+        w.reason = m.supplant(w);
+        JSLINT.errors.push(w);
+        if (option.passfail) {
+            quit('Stopping. ', l, ch);
+        }
+        warnings += 1;
+        if (warnings >= option.maxerr) {
+            quit("Too many errors.", l, ch);
+        }
+        return w;
+    }
+
+    function warningAt(m, l, ch, a, b, c, d) {
+        return warning(m, {
+            line: l,
+            from: ch
+        }, a, b, c, d);
+    }
+
+    function error(m, t, a, b, c, d) {
+        var w = warning(m, t, a, b, c, d);
+        quit("Stopping, unable to continue.", w.line, w.character);
+    }
+
+    function errorAt(m, l, ch, a, b, c, d) {
+        return error(m, {
+            line: l,
+            from: ch
+        }, a, b, c, d);
+    }
+
+
+
+// lexical analysis
+
+    var lex = (function lex() {
+        var character, from, line, s;
+
+// Private lex methods
+
+        function nextLine() {
+            var at;
+            if (line >= lines.length) {
+                return false;
+            }
+            character = 1;
+            s = lines[line];
+            line += 1;
+            at = s.search(/ \t/);
+            if (at >= 0) {
+                warningAt("Mixed spaces and tabs.", line, at + 1);
+            }
+            s = s.replace(/\t/g, tab);
+            at = s.search(cx);
+            if (at >= 0) {
+                warningAt("Unsafe character.", line, at);
+            }
+            if (option.maxlen && option.maxlen < s.length) {
+                warningAt("Line too long.", line, s.length);
+            }
+            return true;
+        }
+
+// Produce a token object.  The token inherits from a syntax symbol.
+
+        function it(type, value) {
+            var i, t;
+            if (type === '(color)') {
+                t = {type: type};
+            } else if (type === '(punctuator)' ||
+                    (type === '(identifier)' && is_own(syntax, value))) {
+                t = syntax[value] || syntax['(error)'];
+            } else {
+                t = syntax[type];
+            }
+            t = Object.create(t);
+            if (type === '(string)' || type === '(range)') {
+                if (jx.test(value)) {
+                    warningAt("Script URL.", line, from);
+                }
+            }
+            if (type === '(identifier)') {
+                t.identifier = true;
+                if (value === '__iterator__' || value === '__proto__') {
+                    errorAt("Reserved name '{a}'.",
+                        line, from, value);
+                } else if (option.nomen &&
+                        (value.charAt(0) === '_' ||
+                         value.charAt(value.length - 1) === '_')) {
+                    warningAt("Unexpected {a} in '{b}'.", line, from,
+                        "dangling '_'", value);
+                }
+            }
+            t.value = value;
+            t.line = line;
+            t.character = character;
+            t.from = from;
+            i = t.id;
+            if (i !== '(endline)') {
+                prereg = i &&
+                    (('(,=:[!&|?{};'.indexOf(i.charAt(i.length - 1)) >= 0) ||
+                    i === 'return');
+            }
+            return t;
+        }
+
+// Public lex methods
+
+        return {
+            init: function (source) {
+                if (typeof source === 'string') {
+                    lines = source.
+                        replace(/\r\n/g, '\n').
+                        replace(/\r/g, '\n').
+                        split('\n');
+                } else {
+                    lines = source;
+                }
+                line = 0;
+                nextLine();
+                from = 1;
+            },
+
+            range: function (begin, end) {
+                var c, value = '';
+                from = character;
+                if (s.charAt(0) !== begin) {
+                    errorAt("Expected '{a}' and instead saw '{b}'.",
+                            line, character, begin, s.charAt(0));
+                }
+                for (;;) {
+                    s = s.slice(1);
+                    character += 1;
+                    c = s.charAt(0);
+                    switch (c) {
+                    case '':
+                        errorAt("Missing '{a}'.", line, character, c);
+                        break;
+                    case end:
+                        s = s.slice(1);
+                        character += 1;
+                        return it('(range)', value);
+                    case xquote:
+                    case '\\':
+                        warningAt("Unexpected '{a}'.", line, character, c);
+                    }
+                    value += c;
+                }
+
+            },
+
+// skip all content up to marker
+
+            skip_till: function (end) {
+                            for (;;) {
+                                i = s.indexOf(end);
+                                if (i >= 0) {
+                                    break;
+                                }
+                                if (!nextLine()) {
+                                    errorAt("Unclosed {a} block.", line, character, end);
+                                }
+                            }
+                            character += i;
+                            s = s.substr(i);
+            },
+
+// token -- this is called by advance to get the next token.
+
+            token: function () {
+                var b, c, captures, d, depth, high, i, l, low, q, t;
+
+                function match(x) {
+                    var r = x.exec(s), r1;
+                    if (r) {
+                        l = r[0].length;
+                        r1 = r[1];
+                        c = r1.charAt(0);
+                        s = s.substr(l);
+                        from = character + l - r1.length;
+                        character += l;
+                        return r1;
+                    }
+                }
+
+                function string(x) {
+                    var c, j, r = '';
+
+                    if (jsonmode && x !== '"') {
+                        warningAt("Strings must use doublequote.",
+                                line, character);
+                    }
+
+                    if (xquote === x || (xmode === 'scriptstring' && !xquote)) {
+                        return it('(punctuator)', x);
+                    }
+
+                    function esc(n) {
+                        var i = parseInt(s.substr(j + 1, n), 16);
+                        j += n;
+                        if (i >= 32 && i <= 126 &&
+                                i !== 34 && i !== 92 && i !== 39) {
+                            warningAt("Unnecessary escapement.", line, character);
+                        }
+                        character += n;
+                        c = String.fromCharCode(i);
+                    }
+                    j = 0;
+                    for (;;) {
+                        while (j >= s.length) {
+                            j = 0;
+                            if (xmode !== 'html' || !nextLine()) {
+                                errorAt("Unclosed string.", line, from);
+                            }
+                        }
+                        c = s.charAt(j);
+                        if (c === x) {
+                            character += 1;
+                            s = s.substr(j + 1);
+                            return it('(string)', r, x);
+                        }
+                        if (c < ' ') {
+                            if (c === '\n' || c === '\r') {
+                                break;
+                            }
+                            warningAt("Control character in string: {a}.",
+                                    line, character + j, s.slice(0, j));
+                        } else if (c === xquote) {
+                            warningAt("Bad HTML string", line, character + j);
+                        } else if (c === '<') {
+                            if (option.safe && xmode === 'html') {
+                                warningAt("ADsafe string violation.",
+                                        line, character + j);
+                            } else if (s.charAt(j + 1) === '/' && (xmode || option.safe)) {
+                                warningAt("Expected '<\\/' and instead saw '</'.", line, character);
+                            } else if (s.charAt(j + 1) === '!' && (xmode || option.safe)) {
+                                warningAt("Unexpected '<!' in a string.", line, character);
+                            }
+                        } else if (c === '\\') {
+                            if (xmode === 'html') {
+                                if (option.safe) {
+                                    warningAt("ADsafe string violation.",
+                                            line, character + j);
+                                }
+                            } else if (xmode === 'styleproperty') {
+                                j += 1;
+                                character += 1;
+                                c = s.charAt(j);
+                                if (c !== x) {
+                                    warningAt("Escapement in style string.",
+                                            line, character + j);
+                                }
+                            } else {
+                                j += 1;
+                                character += 1;
+                                c = s.charAt(j);
+                                switch (c) {
+                                case xquote:
+                                    warningAt("Bad HTML string", line,
+                                        character + j);
+                                    break;
+                                case '\\':
+                                case '\'':
+                                case '"':
+                                case '/':
+                                    break;
+                                case 'b':
+                                    c = '\b';
+                                    break;
+                                case 'f':
+                                    c = '\f';
+                                    break;
+                                case 'n':
+                                    c = '\n';
+                                    break;
+                                case 'r':
+                                    c = '\r';
+                                    break;
+                                case 't':
+                                    c = '\t';
+                                    break;
+                                case 'u':
+                                    esc(4);
+                                    break;
+                                case 'v':
+                                    c = '\v';
+                                    break;
+                                case 'x':
+                                    if (jsonmode) {
+                                        warningAt("Avoid \\x-.", line, character);
+                                    }
+                                    esc(2);
+                                    break;
+                                default:
+                                    warningAt("Bad escapement.", line, character);
+                                }
+                            }
+                        }
+                        r += c;
+                        character += 1;
+                        j += 1;
+                    }
+                }
+
+                for (;;) {
+                    if (!s) {
+                        return it(nextLine() ? '(endline)' : '(end)', '');
+                    }
+                    while (xmode === 'outer') {
+                        i = s.search(ox);
+                        if (i === 0) {
+                            break;
+                        } else if (i > 0) {
+                            character += 1;
+                            s = s.slice(i);
+                            break;
+                        } else {
+                            if (!nextLine()) {
+                                return it('(end)', '');
+                            }
+                        }
+                    }
+//                     t = match(rx[xmode] || tx);
+//                     if (!t) {
+//                         if (xmode === 'html') {
+//                             return it('(error)', s.charAt(0));
+//                         } else {
+//                             t = '';
+//                             c = '';
+//                             while (s && s < '!') {
+//                                 s = s.substr(1);
+//                             }
+//                             if (s) {
+//                                 errorAt("Unexpected '{a}'.",
+//                                         line, character, s.substr(0, 1));
+//                             }
+//                         }
+                    t = match(rx[xmode] || tx);
+                    if (!t) {
+                        t = '';
+                        c = '';
+                        while (s && s < '!') {
+                            s = s.substr(1);
+                        }
+                        if (s) {
+                            if (xmode === 'html') {
+                                return it('(error)', s.charAt(0));
+                            } else {
+                                errorAt("Unexpected '{a}'.",
+                                        line, character, s.substr(0, 1));
+                            }
+                        }
+                    } else {
+
+    //      identifier
+
+                        if (c.isAlpha() || c === '_' || c === '$') {
+                            return it('(identifier)', t);
+                        }
+
+    //      number
+
+                        if (c.isDigit()) {
+                            if (xmode !== 'style' && !isFinite(Number(t))) {
+                                warningAt("Bad number '{a}'.",
+                                    line, character, t);
+                            }
+                            if (xmode !== 'style' &&
+                                     xmode !== 'styleproperty' &&
+                                     s.substr(0, 1).isAlpha()) {
+                                warningAt("Missing space after '{a}'.",
+                                        line, character, t);
+                            }
+                            if (c === '0') {
+                                d = t.substr(1, 1);
+                                if (d.isDigit()) {
+                                    if (token.id !== '.' && xmode !== 'styleproperty') {
+                                        warningAt("Don't use extra leading zeros '{a}'.",
+                                            line, character, t);
+                                    }
+                                } else if (jsonmode && (d === 'x' || d === 'X')) {
+                                    warningAt("Avoid 0x-. '{a}'.",
+                                            line, character, t);
+                                }
+                            }
+                            if (t.substr(t.length - 1) === '.') {
+                                warningAt(
+        "A trailing decimal point can be confused with a dot '{a}'.",
+                                        line, character, t);
+                            }
+                            return it('(number)', t);
+                        }
+                        switch (t) {
+
+    //      string
+
+                        case '"':
+                        case "'":
+                            return string(t);
+
+    //      // comment
+
+                        case '//':
+                            if (src || (xmode && xmode !== 'script')) {
+                                warningAt("Unexpected comment.", line, character);
+                            } else if (xmode === 'script' && /<\s*\//i.test(s)) {
+                                warningAt("Unexpected <\/ in comment.", line, character);
+                            } else if ((option.safe || xmode === 'script') && ax.test(s)) {
+                                warningAt("Dangerous comment.", line, character);
+                            }
+                            s = '';
+                            token.comment = true;
+                            break;
+
+    //      /* comment
+
+                        case '/*':
+                            if (src || (xmode && xmode !== 'script' && xmode !== 'style' && xmode !== 'styleproperty')) {
+                                warningAt("Unexpected comment.", line, character);
+                            }
+                            if (option.safe && ax.test(s)) {
+                                warningAt("ADsafe comment violation.", line, character);
+                            }
+                            for (;;) {
+                                i = s.search(lx);
+                                if (i >= 0) {
+                                    break;
+                                }
+                                if (!nextLine()) {
+                                    errorAt("Unclosed comment.", line, character);
+                                } else {
+                                    if (option.safe && ax.test(s)) {
+                                        warningAt("ADsafe comment violation.",
+                                                line, character);
+                                    }
+                                }
+                            }
+                            character += i + 2;
+                            if (s.substr(i, 1) === '/') {
+                                errorAt("Nested comment.", line, character);
+                            }
+                            s = s.substr(i + 2);
+                            token.comment = true;
+                            break;
+
+    //      /*members /*jslint /*global
+
+                        case '/*members':
+                        case '/*member':
+                        case '/*jslint':
+                        case '/*global':
+                        case '*/':
+                            return {
+                                value: t,
+                                type: 'special',
+                                line: line,
+                                character: character,
+                                from: from
+                            };
+
+                        case '':
+                            break;
+    //      /
+                        case '/':
+                            if (token.id === '/=') {
+                                errorAt(
+"A regular expression literal can be confused with '/='.", line, from);
+                            }
+                            if (prereg) {
+                                depth = 0;
+                                captures = 0;
+                                l = 0;
+                                for (;;) {
+                                    b = true;
+                                    c = s.charAt(l);
+                                    l += 1;
+                                    switch (c) {
+                                    case '':
+                                        errorAt("Unclosed regular expression.",
+                                                line, from);
+                                        return;
+                                    case '/':
+                                        if (depth > 0) {
+                                            warningAt("Unescaped '{a}'.",
+                                                    line, from + l, '/');
+                                        }
+                                        c = s.substr(0, l - 1);
+                                        q = {
+                                            g: true,
+                                            i: true,
+                                            m: true
+                                        };
+                                        while (q[s.charAt(l)] === true) {
+                                            q[s.charAt(l)] = false;
+                                            l += 1;
+                                        }
+                                        character += l;
+                                        s = s.substr(l);
+                                        q = s.charAt(0);
+                                        if (q === '/' || q === '*') {
+                                            errorAt("Confusing regular expression.",
+                                                    line, from);
+                                        }
+                                        return it('(regexp)', c);
+                                    case '\\':
+                                        c = s.charAt(l);
+                                        if (c < ' ') {
+                                            warningAt(
+"Unexpected control character in regular expression.", line, from + l);
+                                        } else if (c === '<') {
+                                            warningAt(
+"Unexpected escaped character '{a}' in regular expression.", line, from + l, c);
+                                        }
+                                        l += 1;
+                                        break;
+                                    case '(':
+                                        depth += 1;
+                                        b = false;
+                                        if (s.charAt(l) === '?') {
+                                            l += 1;
+                                            switch (s.charAt(l)) {
+                                            case ':':
+                                            case '=':
+                                            case '!':
+                                                l += 1;
+                                                break;
+                                            default:
+                                                warningAt(
+"Expected '{a}' and instead saw '{b}'.", line, from + l, ':', s.charAt(l));
+                                            }
+                                        } else {
+                                            captures += 1;
+                                        }
+                                        break;
+                                    case '|':
+                                        b = false;
+                                        break;
+                                    case ')':
+                                        if (depth === 0) {
+                                            warningAt("Unescaped '{a}'.",
+                                                    line, from + l, ')');
+                                        } else {
+                                            depth -= 1;
+                                        }
+                                        break;
+                                    case ' ':
+                                        q = 1;
+                                        while (s.charAt(l) === ' ') {
+                                            l += 1;
+                                            q += 1;
+                                        }
+                                        if (q > 1) {
+                                            warningAt(
+"Spaces are hard to count. Use {{a}}.", line, from + l, q);
+                                        }
+                                        break;
+                                    case '[':
+                                        c = s.charAt(l);
+                                        if (c === '^') {
+                                            l += 1;
+                                            if (option.regexp) {
+                                                warningAt("Insecure '{a}'.",
+                                                        line, from + l, c);
+                                            }
+                                        }
+                                        q = false;
+                                        if (c === ']') {
+                                            warningAt("Empty class.", line,
+                                                    from + l - 1);
+                                            q = true;
+                                        }
+klass:                                  do {
+                                            c = s.charAt(l);
+                                            l += 1;
+                                            switch (c) {
+                                            case '[':
+                                            case '^':
+                                                warningAt("Unescaped '{a}'.",
+                                                        line, from + l, c);
+                                                q = true;
+                                                break;
+                                            case '-':
+                                                if (q) {
+                                                    q = false;
+                                                } else {
+                                                    warningAt("Unescaped '{a}'.",
+                                                            line, from + l, '-');
+                                                    q = true;
+                                                }
+                                                break;
+                                            case ']':
+                                                if (!q) {
+                                                    warningAt("Unescaped '{a}'.",
+                                                            line, from + l - 1, '-');
+                                                }
+                                                break klass;
+                                            case '\\':
+                                                c = s.charAt(l);
+                                                if (c < ' ') {
+                                                    warningAt(
+"Unexpected control character in regular expression.", line, from + l);
+                                                } else if (c === '<') {
+                                                    warningAt(
+"Unexpected escaped character '{a}' in regular expression.", line, from + l, c);
+                                                }
+                                                l += 1;
+                                                q = true;
+                                                break;
+                                            case '/':
+                                                warningAt("Unescaped '{a}'.",
+                                                        line, from + l - 1, '/');
+                                                q = true;
+                                                break;
+                                            case '<':
+                                                if (xmode === 'script') {
+                                                    c = s.charAt(l);
+                                                    if (c === '!' || c === '/') {
+                                                        warningAt(
+"HTML confusion in regular expression '<{a}'.", line, from + l, c);
+                                                    }
+                                                }
+                                                q = true;
+                                                break;
+                                            default:
+                                                q = true;
+                                            }
+                                        } while (c);
+                                        break;
+                                    case '.':
+                                        if (option.regexp) {
+                                            warningAt("Insecure '{a}'.", line,
+                                                    from + l, c);
+                                        }
+                                        break;
+                                    case ']':
+                                    case '?':
+                                    case '{':
+                                    case '}':
+                                    case '+':
+                                    case '*':
+                                        warningAt("Unescaped '{a}'.", line,
+                                                from + l, c);
+                                        break;
+                                    case '<':
+                                        if (xmode === 'script') {
+                                            c = s.charAt(l);
+                                            if (c === '!' || c === '/') {
+                                                warningAt(
+"HTML confusion in regular expression '<{a}'.", line, from + l, c);
+                                            }
+                                        }
+                                    }
+                                    if (b) {
+                                        switch (s.charAt(l)) {
+                                        case '?':
+                                        case '+':
+                                        case '*':
+                                            l += 1;
+                                            if (s.charAt(l) === '?') {
+                                                l += 1;
+                                            }
+                                            break;
+                                        case '{':
+                                            l += 1;
+                                            c = s.charAt(l);
+                                            if (c < '0' || c > '9') {
+                                                warningAt(
+"Expected a number and instead saw '{a}'.", line, from + l, c);
+                                            }
+                                            l += 1;
+                                            low = +c;
+                                            for (;;) {
+                                                c = s.charAt(l);
+                                                if (c < '0' || c > '9') {
+                                                    break;
+                                                }
+                                                l += 1;
+                                                low = +c + (low * 10);
+                                            }
+                                            high = low;
+                                            if (c === ',') {
+                                                l += 1;
+                                                high = Infinity;
+                                                c = s.charAt(l);
+                                                if (c >= '0' && c <= '9') {
+                                                    l += 1;
+                                                    high = +c;
+                                                    for (;;) {
+                                                        c = s.charAt(l);
+                                                        if (c < '0' || c > '9') {
+                                                            break;
+                                                        }
+                                                        l += 1;
+                                                        high = +c + (high * 10);
+                                                    }
+                                                }
+                                            }
+                                            if (s.charAt(l) !== '}') {
+                                                warningAt(
+"Expected '{a}' and instead saw '{b}'.", line, from + l, '}', c);
+                                            } else {
+                                                l += 1;
+                                            }
+                                            if (s.charAt(l) === '?') {
+                                                l += 1;
+                                            }
+                                            if (low > high) {
+                                                warningAt(
+"'{a}' should not be greater than '{b}'.", line, from + l, low, high);
+                                            }
+                                        }
+                                    }
+                                }
+                                c = s.substr(0, l - 1);
+                                character += l;
+                                s = s.substr(l);
+                                return it('(regexp)', c);
+                            }
+                            return it('(punctuator)', t);
+
+    //      punctuator
+
+                        case '<!--':
+                            l = line;
+                            c = character;
+                            for (;;) {
+                                i = s.indexOf('--');
+                                if (i >= 0) {
+                                    break;
+                                }
+                                i = s.indexOf('<!-');
+                                if (i >= 0) {
+                                    errorAt("Nested HTML comment.",
+                                        line, character + i);
+                                }
+                                if (!nextLine()) {
+                                    errorAt("Unclosed HTML comment.", l, c);
+                                }
+                            }
+                            l = s.indexOf('<!-');
+                            if (l >= 0 && l < i) {
+                                errorAt("Nested HTML comment.",
+                                    line, character + l);
+                            }
+                            character += i;
+                            if (s[i + 2] !== '>') {
+                                errorAt("Expected -->.", line, character);
+                            }
+                            character += 3;
+                            s = s.slice(i + 3);
+                            break;
+                        case '#':
+                            if (xmode === 'html' || xmode === 'styleproperty') {
+                                for (;;) {
+                                    c = s.charAt(0);
+                                    if ((c < '0' || c > '9') &&
+                                            (c < 'a' || c > 'f') &&
+                                            (c < 'A' || c > 'F')) {
+                                        break;
+                                    }
+                                    character += 1;
+                                    s = s.substr(1);
+                                    t += c;
+                                }
+                                if (t.length !== 4 && t.length !== 7) {
+                                    warningAt("Bad hex color '{a}'.", line,
+                                        from + l, t);
+                                }
+                                return it('(color)', t);
+                            }
+                            return it('(punctuator)', t);
+                        default:
+                            if (xmode === 'outer' && c === '&') {
+                                character += 1;
+                                s = s.substr(1);
+                                for (;;) {
+                                    c = s.charAt(0);
+                                    character += 1;
+                                    s = s.substr(1);
+                                    if (c === ';') {
+                                        break;
+                                    }
+                                    if (!((c >= '0' && c <= '9') ||
+                                            (c >= 'a' && c <= 'z') ||
+                                            c === '#')) {
+                                        errorAt("Bad entity", line, from + l,
+                                        character);
+                                    }
+                                }
+                                break;
+                            }
+                            return it('(punctuator)', t);
+                        }
+                    }
+                }
+            }
+        };
+    }());
+
+
+    function addlabel(t, type) {
+
+        if (option.safe && funct['(global)'] &&
+                typeof predefined[t] !== 'boolean') {
+            warning('ADsafe global: ' + t + '.', token);
+        } else if (t === 'hasOwnProperty') {
+            warning("'hasOwnProperty' is a really bad name.");
+        }
+
+// Define t in the current function in the current scope.
+
+        if (is_own(funct, t) && !funct['(global)']) {
+            warning(funct[t] === true ?
+                "'{a}' was used before it was defined." :
+                "'{a}' is already defined.",
+                nexttoken, t);
+        }
+        funct[t] = type;
+        if (funct['(global)']) {
+            global[t] = funct;
+            if (is_own(implied, t)) {
+                warning("'{a}' was used before it was defined.", nexttoken, t);
+                delete implied[t];
+            }
+        } else {
+            scope[t] = funct;
+        }
+    }
+
+
+    function doOption() {
+        var b, obj, filter, o = nexttoken.value, t, v;
+        switch (o) {
+        case '*/':
+            error("Unbegun comment.");
+            break;
+        case '/*members':
+        case '/*member':
+            o = '/*members';
+            if (!membersOnly) {
+                membersOnly = {};
+            }
+            obj = membersOnly;
+            break;
+        case '/*jslint':
+            if (option.safe) {
+                warning("ADsafe restriction.");
+            }
+            obj = option;
+            filter = boolOptions;
+            break;
+        case '/*global':
+            if (option.safe) {
+                warning("ADsafe restriction.");
+            }
+            obj = predefined;
+            break;
+        default:
+        }
+        t = lex.token();
+loop:   for (;;) {
+            for (;;) {
+                if (t.type === 'special' && t.value === '*/') {
+                    break loop;
+                }
+                if (t.id !== '(endline)' && t.id !== ',') {
+                    break;
+                }
+                t = lex.token();
+            }
+            if (t.type !== '(string)' && t.type !== '(identifier)' &&
+                    o !== '/*members') {
+                error("Bad option.", t);
+            }
+            v = lex.token();
+            if (v.id === ':') {
+                v = lex.token();
+                if (obj === membersOnly) {
+                    error("Expected '{a}' and instead saw '{b}'.",
+                            t, '*/', ':');
+                }
+                if (t.value === 'indent' && o === '/*jslint') {
+                    b = +v.value;
+                    if (typeof b !== 'number' || !isFinite(b) || b <= 0 ||
+                            Math.floor(b) !== b) {
+                        error("Expected a small integer and instead saw '{a}'.",
+                                v, v.value);
+                    }
+                    obj.white = true;
+                    obj.indent = b;
+                } else if (t.value === 'maxerr' && o === '/*jslint') {
+                    b = +v.value;
+                    if (typeof b !== 'number' || !isFinite(b) || b <= 0 ||
+                            Math.floor(b) !== b) {
+                        error("Expected a small integer and instead saw '{a}'.",
+                                v, v.value);
+                    }
+                    obj.maxerr = b;
+                } else if (t.value === 'maxlen' && o === '/*jslint') {
+                    b = +v.value;
+                    if (typeof b !== 'number' || !isFinite(b) || b <= 0 ||
+                            Math.floor(b) !== b) {
+                        error("Expected a small integer and instead saw '{a}'.",
+                                v, v.value);
+                    }
+                    obj.maxlen = b;
+                } else if (v.value === 'true') {
+                    obj[t.value] = true;
+                } else if (v.value === 'false') {
+                    obj[t.value] = false;
+                } else {
+                    error("Bad option value.", v);
+                }
+                t = lex.token();
+            } else {
+                if (o === '/*jslint') {
+                    error("Missing option value.", t);
+                }
+                obj[t.value] = false;
+                t = v;
+            }
+        }
+        if (filter) {
+            assume();
+        }
+    }
+
+
+// We need a peek function. If it has an argument, it peeks that much farther
+// ahead. It is used to distinguish
+//     for ( var i in ...
+// from
+//     for ( var i = ...
+
+    function peek(p) {
+        var i = p || 0, j = 0, t;
+
+        while (j <= i) {
+            t = lookahead[j];
+            if (!t) {
+                t = lookahead[j] = lex.token();
+            }
+            j += 1;
+        }
+        return t;
+    }
+
+
+
+// Produce the next token. It looks for programming errors.
+
+    function advance(id, t) {
+        switch (token.id) {
+        case '(number)':
+            if (nexttoken.id === '.') {
+                warning(
+"A dot following a number can be confused with a decimal point.", token);
+            }
+            break;
+        case '-':
+            if (nexttoken.id === '-' || nexttoken.id === '--') {
+                warning("Confusing minusses.");
+            }
+            break;
+        case '+':
+            if (nexttoken.id === '+' || nexttoken.id === '++') {
+                warning("Confusing plusses.");
+            }
+            break;
+        }
+        if (token.type === '(string)' || token.identifier) {
+            anonname = token.value;
+        }
+
+        if (id && nexttoken.id !== id) {
+            if (t) {
+                if (nexttoken.id === '(end)') {
+                    warning("Unmatched '{a}'.", t, t.id);
+                } else {
+                    warning(
+"Expected '{a}' to match '{b}' from line {c} and instead saw '{d}'.",
+                            nexttoken, id, t.id, t.line, nexttoken.value);
+                }
+            } else if (nexttoken.type !== '(identifier)' ||
+                            nexttoken.value !== id) {
+                warning("Expected '{a}' and instead saw '{b}'.",
+                        nexttoken, id, nexttoken.value);
+            }
+        }
+        prevtoken = token;
+        token = nexttoken;
+        for (;;) {
+            nexttoken = lookahead.shift() || lex.token();
+            if (nexttoken.id === '(end)' || nexttoken.id === '(error)') {
+                return;
+            }
+            if (nexttoken.type === 'special') {
+                doOption();
+            } else {
+                if (nexttoken.id !== '(endline)') {
+                    break;
+                }
+            }
+        }
+    }
+
+
+// This is the heart of JSLINT, the Pratt parser. In addition to parsing, it
+// is looking for ad hoc lint patterns. We add to Pratt's model .fud, which is
+// like nud except that it is only used on the first token of a statement.
+// Having .fud makes it much easier to define JavaScript. I retained Pratt's
+// nomenclature.
+
+// .nud     Null denotation
+// .fud     First null denotation
+// .led     Left denotation
+//  lbp     Left binding power
+//  rbp     Right binding power
+
+// They are key to the parsing method called Top Down Operator Precedence.
+
+    function parse(rbp, initial) {
+        var left;
+        if (nexttoken.id === '(end)') {
+            error("Unexpected early end of program.", token);
+        }
+        advance();
+        if (option.safe && typeof predefined[token.value] === 'boolean' &&
+                (nexttoken.id !== '(' && nexttoken.id !== '.')) {
+            warning('ADsafe violation.', token);
+        }
+        if (initial) {
+            anonname = 'anonymous';
+            funct['(verb)'] = token.value;
+        }
+        if (initial === true && token.fud) {
+            left = token.fud();
+        } else {
+            if (token.nud) {
+                left = token.nud();
+            } else {
+                if (nexttoken.type === '(number)' && token.id === '.') {
+                    warning(
+"A leading decimal point can be confused with a dot: '.{a}'.",
+                            token, nexttoken.value);
+                    advance();
+                    return token;
+                } else {
+                    error("Expected an identifier and instead saw '{a}'.",
+                            token, token.id);
+                }
+            }
+            while (rbp < nexttoken.lbp) {
+                advance();
+                if (token.led) {
+                    left = token.led(left);
+                } else {
+                    error("Expected an operator and instead saw '{a}'.",
+                        token, token.id);
+                }
+            }
+        }
+        return left;
+    }
+
+
+// Functions for conformance of style.
+
+    function adjacent(left, right) {
+        left = left || token;
+        right = right || nexttoken;
+        if (option.white || xmode === 'styleproperty' || xmode === 'style') {
+            if (left.character !== right.from && left.line === right.line) {
+                warning("Unexpected space after '{a}'.", right, left.value);
+            }
+        }
+    }
+
+    function nospace(left, right) {
+        left = left || token;
+        right = right || nexttoken;
+        if (option.white && !left.comment) {
+            if (left.line === right.line) {
+                adjacent(left, right);
+            }
+        }
+    }
+
+
+    function nonadjacent(left, right) {
+        if (option.white) {
+            left = left || token;
+            right = right || nexttoken;
+            if (left.line === right.line && left.character === right.from) {
+                warning("Missing space after '{a}'.",
+                        nexttoken, left.value);
+            }
+        }
+    }
+
+    function nobreaknonadjacent(left, right) {
+        left = left || token;
+        right = right || nexttoken;
+        if (!option.laxbreak && left.line !== right.line) {
+            warning("Bad line breaking before '{a}'.", right, right.id);
+        } else if (option.white) {
+            left = left || token;
+            right = right || nexttoken;
+            if (left.character === right.from) {
+                warning("Missing space after '{a}'.",
+                        nexttoken, left.value);
+            }
+        }
+    }
+
+    function indentation(bias) {
+        var i;
+        if (option.white && nexttoken.id !== '(end)') {
+            i = indent + (bias || 0);
+            if (nexttoken.from !== i) {
+                warning(
+"Expected '{a}' to have an indentation at {b} instead at {c}.",
+                        nexttoken, nexttoken.value, i, nexttoken.from);
+            }
+        }
+    }
+
+    function nolinebreak(t) {
+        t = t || token;
+        if (t.line !== nexttoken.line) {
+            warning("Line breaking error '{a}'.", t, t.value);
+        }
+    }
+
+
+    function comma() {
+        if (token.line !== nexttoken.line) {
+            if (!option.laxbreak) {
+                warning("Bad line breaking before '{a}'.", token, nexttoken.id);
+            }
+        } else if (token.character !== nexttoken.from && option.white) {
+            warning("Unexpected space after '{a}'.", nexttoken, token.value);
+        }
+        advance(',');
+        nonadjacent(token, nexttoken);
+    }
+
+
+// Functional constructors for making the symbols that will be inherited by
+// tokens.
+
+    function symbol(s, p) {
+        var x = syntax[s];
+        if (!x || typeof x !== 'object') {
+            syntax[s] = x = {
+                id: s,
+                lbp: p,
+                value: s
+            };
+        }
+        return x;
+    }
+
+
+    function delim(s) {
+        return symbol(s, 0);
+    }
+
+
+    function stmt(s, f) {
+        var x = delim(s);
+        x.identifier = x.reserved = true;
+        x.fud = f;
+        return x;
+    }
+
+
+    function blockstmt(s, f) {
+        var x = stmt(s, f);
+        x.block = true;
+        return x;
+    }
+
+
+    function reserveName(x) {
+        var c = x.id.charAt(0);
+        if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
+            x.identifier = x.reserved = true;
+        }
+        return x;
+    }
+
+
+    function prefix(s, f) {
+        var x = symbol(s, 150);
+        reserveName(x);
+        x.nud = (typeof f === 'function') ? f : function () {
+            this.right = parse(150);
+            this.arity = 'unary';
+            if (this.id === '++' || this.id === '--') {
+                if (option.plusplus) {
+                    warning("Unexpected use of '{a}'.", this, this.id);
+                } else if ((!this.right.identifier || this.right.reserved) &&
+                        this.right.id !== '.' && this.right.id !== '[') {
+                    warning("Bad operand.", this);
+                }
+            }
+            return this;
+        };
+        return x;
+    }
+
+
+    function type(s, f) {
+        var x = delim(s);
+        x.type = s;
+        x.nud = f;
+        return x;
+    }
+
+
+    function reserve(s, f) {
+        var x = type(s, f);
+        x.identifier = x.reserved = true;
+        return x;
+    }
+
+
+    function reservevar(s, v) {
+        return reserve(s, function () {
+            if (this.id === 'this' || this.id === 'arguments' ||
+                    this.id === 'eval') {
+                if (strict_mode && funct['(global)']) {
+                    warning("Strict violation.", this);
+                } else if (option.safe) {
+                    warning("ADsafe violation.", this);
+                }
+            }
+            return this;
+        });
+    }
+
+
+    function infix(s, f, p, w) {
+        var x = symbol(s, p);
+        reserveName(x);
+        x.led = function (left) {
+            if (!w) {
+                nobreaknonadjacent(prevtoken, token);
+                nonadjacent(token, nexttoken);
+            }
+            if (typeof f === 'function') {
+                return f(left, this);
+            } else {
+                this.left = left;
+                this.right = parse(p);
+                return this;
+            }
+        };
+        return x;
+    }
+
+
+    function relation(s, f) {
+        var x = symbol(s, 100);
+        x.led = function (left) {
+            nobreaknonadjacent(prevtoken, token);
+            nonadjacent(token, nexttoken);
+            var right = parse(100);
+            if ((left && left.id === 'NaN') || (right && right.id === 'NaN')) {
+                warning("Use the isNaN function to compare with NaN.", this);
+            } else if (f) {
+                f.apply(this, [left, right]);
+            }
+            if (left.id === '!') {
+                warning("Confusing use of '{a}'.", left, '!');
+            }
+            if (right.id === '!') {
+                warning("Confusing use of '{a}'.", left, '!');
+            }
+            this.left = left;
+            this.right = right;
+            return this;
+        };
+        return x;
+    }
+
+
+    function isPoorRelation(node) {
+        return node &&
+              ((node.type === '(number)' && +node.value === 0) ||
+               (node.type === '(string)' && node.value === ' ') ||
+                node.type === 'true' ||
+                node.type === 'false' ||
+                node.type === 'undefined' ||
+                node.type === 'null');
+    }
+
+
+    function assignop(s, f) {
+        symbol(s, 20).exps = true;
+        return infix(s, function (left, that) {
+            var l;
+            that.left = left;
+            if (predefined[left.value] === false &&
+                    scope[left.value]['(global)'] === true) {
+                warning('Read only.', left);
+            }
+            if (option.safe) {
+                l = left;
+                do {
+                    if (typeof predefined[l.value] === 'boolean') {
+                        warning('ADsafe violation.', l);
+                    }
+                    l = l.left;
+                } while (l);
+            }
+            if (left) {
+                if (left.id === '.' || left.id === '[') {
+                    if (!left.left || left.left.value === 'arguments') {
+                        warning('Bad assignment.', that);
+                    }
+                    that.right = parse(19);
+                    return that;
+                } else if (left.identifier && !left.reserved) {
+                    if (funct[left.value] === 'exception') {
+                        warning("Do not assign to the exception parameter.", left);
+                    }
+                    that.right = parse(19);
+                    return that;
+                }
+                if (left === syntax['function']) {
+                    warning(
+"Expected an identifier in an assignment and instead saw a function invocation.",
+                                token);
+                }
+            }
+            error("Bad assignment.", that);
+        }, 20);
+    }
+
+    function bitwise(s, f, p) {
+        var x = symbol(s, p);
+        reserveName(x);
+        x.led = (typeof f === 'function') ? f : function (left) {
+            if (option.bitwise) {
+                warning("Unexpected use of '{a}'.", this, this.id);
+            }
+            this.left = left;
+            this.right = parse(p);
+            return this;
+        };
+        return x;
+    }
+
+    function bitwiseassignop(s) {
+        symbol(s, 20).exps = true;
+        return infix(s, function (left, that) {
+            if (option.bitwise) {
+                warning("Unexpected use of '{a}'.", that, that.id);
+            }
+            nonadjacent(prevtoken, token);
+            nonadjacent(token, nexttoken);
+            if (left) {
+                if (left.id === '.' || left.id === '[' ||
+                        (left.identifier && !left.reserved)) {
+                    parse(19);
+                    return that;
+                }
+                if (left === syntax['function']) {
+                    warning(
+"Expected an identifier in an assignment, and instead saw a function invocation.",
+                                token);
+                }
+                return that;
+            }
+            error("Bad assignment.", that);
+        }, 20);
+    }
+
+
+    function suffix(s, f) {
+        var x = symbol(s, 150);
+        x.led = function (left) {
+            if (option.plusplus) {
+                warning("Unexpected use of '{a}'.", this, this.id);
+            } else if ((!left.identifier || left.reserved) &&
+                    left.id !== '.' && left.id !== '[') {
+                warning("Bad operand.", this);
+            }
+            this.left = left;
+            return this;
+        };
+        return x;
+    }
+
+
+    function optionalidentifier() {
+        if (nexttoken.identifier) {
+            advance();
+            if (option.safe && banned[token.value]) {
+                warning("ADsafe violation: '{a}'.", token, token.value);
+            } else if (token.reserved && !option.es5) {
+                warning("Expected an identifier and instead saw '{a}' (a reserved word).",
+                        token, token.id);
+            }
+            return token.value;
+        }
+    }
+
+
+    function identifier() {
+        var i = optionalidentifier();
+        if (i) {
+            return i;
+        }
+        if (token.id === 'function' && nexttoken.id === '(') {
+            warning("Missing name in function statement.");
+        } else {
+            error("Expected an identifier and instead saw '{a}'.",
+                    nexttoken, nexttoken.value);
+        }
+    }
+
+    function reachable(s) {
+        var i = 0, t;
+        if (nexttoken.id !== ';' || noreach) {
+            return;
+        }
+        for (;;) {
+            t = peek(i);
+            if (t.reach) {
+                return;
+            }
+            if (t.id !== '(endline)') {
+                if (t.id === 'function') {
+                    warning(
+"Inner functions should be listed at the top of the outer function.", t);
+                    break;
+                }
+                warning("Unreachable '{a}' after '{b}'.", t, t.value, s);
+                break;
+            }
+            i += 1;
+        }
+    }
+
+
+    function statement(noindent) {
+        var i = indent, r, s = scope, t = nexttoken;
+
+// We don't like the empty statement.
+
+        if (t.id === ';') {
+            warning("Unnecessary semicolon.", t);
+            advance(';');
+            return;
+        }
+
+// Is this a labelled statement?
+
+        if (t.identifier && !t.reserved && peek().id === ':') {
+            advance();
+            advance(':');
+            scope = Object.create(s);
+            addlabel(t.value, 'label');
+            if (!nexttoken.labelled) {
+                warning("Label '{a}' on {b} statement.",
+                        nexttoken, t.value, nexttoken.value);
+            }
+            if (jx.test(t.value + ':')) {
+                warning("Label '{a}' looks like a javascript url.",
+                        t, t.value);
+            }
+            nexttoken.label = t.value;
+            t = nexttoken;
+        }
+
+// Parse the statement.
+
+        if (!noindent) {
+            indentation();
+        }
+        r = parse(0, true);
+
+// Look for the final semicolon.
+
+        if (!t.block) {
+            if (!r || !r.exps) {
+                warning(
+"Expected an assignment or function call and instead saw an expression.",
+                        token);
+            } else if (r.id === '(' && r.left.id === 'new') {
+                warning("Do not use 'new' for side effects.");
+            }
+            if (nexttoken.id !== ';') {
+                warningAt("Missing semicolon.", token.line,
+                        token.from + token.value.length);
+            } else {
+                adjacent(token, nexttoken);
+                advance(';');
+                nonadjacent(token, nexttoken);
+            }
+        }
+
+// Restore the indentation.
+
+        indent = i;
+        scope = s;
+        return r;
+    }
+
+
+    function use_strict() {
+        if (nexttoken.value === 'use strict') {
+            advance();
+            advance(';');
+            strict_mode = true;
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+
+    function statements(begin) {
+        var a = [], f, p;
+        if (begin && !use_strict() && option.strict) {
+            warning('Missing "use strict" statement.', nexttoken);
+        }
+        if (option.adsafe) {
+            switch (begin) {
+            case 'script':
+                if (!adsafe_may) {
+                    if (nexttoken.value !== 'ADSAFE' ||
+                            peek(0).id !== '.' ||
+                            (peek(1).value !== 'id' &&
+                            peek(1).value !== 'go')) {
+                        error('ADsafe violation: Missing ADSAFE.id or ADSAFE.go.',
+                            nexttoken);
+                    }
+                }
+                if (nexttoken.value === 'ADSAFE' &&
+                        peek(0).id === '.' &&
+                        peek(1).value === 'id') {
+                    if (adsafe_may) {
+                        error('ADsafe violation.', nexttoken);
+                    }
+                    advance('ADSAFE');
+                    advance('.');
+                    advance('id');
+                    advance('(');
+                    if (nexttoken.value !== adsafe_id) {
+                        error('ADsafe violation: id does not match.', nexttoken);
+                    }
+                    advance('(string)');
+                    advance(')');
+                    advance(';');
+                    adsafe_may = true;
+                }
+                break;
+            case 'lib':
+                if (nexttoken.value === 'ADSAFE') {
+                    advance('ADSAFE');
+                    advance('.');
+                    advance('lib');
+                    advance('(');
+                    advance('(string)');
+                    comma();
+                    f = parse(0);
+                    if (f.id !== 'function') {
+                        error('The second argument to lib must be a function.', f);
+                    }
+                    p = f.funct['(params)'];
+                    p = p && p.join(', ');
+                    if (p && p !== 'lib') {
+                        error("Expected '{a}' and instead saw '{b}'.",
+                            f, '(lib)', '(' + p + ')');
+                    }
+                    advance(')');
+                    advance(';');
+                    return a;
+                } else {
+                    error("ADsafe lib violation.");
+                }
+            }
+        }
+        while (!nexttoken.reach && nexttoken.id !== '(end)') {
+            if (nexttoken.id === ';') {
+                warning("Unnecessary semicolon.");
+                advance(';');
+            } else {
+                a.push(statement());
+            }
+        }
+        return a;
+    }
+
+
+    function block(f) {
+        var a, b = inblock, old_indent = indent, s = scope, t;
+        inblock = f;
+        scope = Object.create(scope);
+        nonadjacent(token, nexttoken);
+        t = nexttoken;
+        if (nexttoken.id === '{') {
+            advance('{');
+            if (nexttoken.id !== '}' || token.line !== nexttoken.line) {
+                indent += option.indent;
+                while (!f && nexttoken.from > indent) {
+                    indent += option.indent;
+                }
+                if (!f) {
+                    use_strict();
+                }
+                a = statements();
+                indent -= option.indent;
+                indentation();
+            }
+            advance('}', t);
+            indent = old_indent;
+        } else {
+            warning("Expected '{a}' and instead saw '{b}'.",
+                    nexttoken, '{', nexttoken.value);
+            noreach = true;
+            a = [statement()];
+            noreach = false;
+        }
+        funct['(verb)'] = null;
+        scope = s;
+        inblock = b;
+        return a;
+    }
+
+
+// An identity function, used by string and number tokens.
+
+    function idValue() {
+        return this;
+    }
+
+
+    function countMember(m) {
+        if (membersOnly && typeof membersOnly[m] !== 'boolean') {
+            warning("Unexpected /*member '{a}'.", token, m);
+        }
+        if (typeof member[m] === 'number') {
+            member[m] += 1;
+        } else {
+            member[m] = 1;
+        }
+    }
+
+
+    function note_implied(token) {
+        var name = token.value, line = token.line, a = implied[name];
+        if (typeof a === 'function') {
+            a = false;
+        }
+        if (!a) {
+            a = [line];
+            implied[name] = a;
+        } else if (a[a.length - 1] !== line) {
+            a.push(line);
+        }
+    }
+
+// CSS parsing.
+
+
+    function cssName() {
+        if (nexttoken.identifier) {
+            advance();
+            return true;
+        }
+    }
+
+    function cssNumber() {
+        if (nexttoken.id === '-') {
+            advance('-');
+            adjacent();
+            nolinebreak();
+        }
+        if (nexttoken.type === '(number)') {
+            advance('(number)');
+            return true;
+        }
+    }
+
+    function cssString() {
+        if (nexttoken.type === '(string)') {
+            advance();
+            return true;
+        }
+    }
+
+    function cssColor() {
+        var i, number, value;
+        if (nexttoken.identifier) {
+            value = nexttoken.value;
+            if (value === 'rgb' || value === 'rgba') {
+                advance();
+                advance('(');
+                for (i = 0; i < 3; i += 1) {
+                    if (i) {
+                        advance(',');
+                    }
+                    number = nexttoken.value;
+                    if (nexttoken.type !== '(number)' || number < 0) {
+                        warning("Expected a positive number and instead saw '{a}'",
+                            nexttoken, number);
+                        advance();
+                    } else {
+                        advance();
+                        if (nexttoken.id === '%') {
+                            advance('%');
+                            if (number > 100) {
+                                warning("Expected a percentage and instead saw '{a}'",
+                                    token, number);
+                            }
+                        } else {
+                            if (number > 255) {
+                                warning("Expected a small number and instead saw '{a}'",
+                                    token, number);
+                            }
+                        }
+                    }
+                }
+                if (value === 'rgba') {
+                    advance(',');
+                    number = +nexttoken.value;
+                    if (nexttoken.type !== '(number)' || number < 0 || number > 1) {
+                        warning("Expected a number between 0 and 1 and instead saw '{a}'",
+                            nexttoken, number);
+                    }
+                    advance();
+                    if (nexttoken.id === '%') {
+                        warning("Unexpected '%'.");
+                        advance('%');
+                    }
+                }
+                advance(')');
+                return true;
+            } else if (cssColorData[nexttoken.value] === true) {
+                advance();
+                return true;
+            }
+        } else if (nexttoken.type === '(color)') {
+            advance();
+            return true;
+        }
+        return false;
+    }
+
+    function cssLength() {
+        if (nexttoken.id === '-') {
+            advance('-');
+            adjacent();
+            nolinebreak();
+        }
+        if (nexttoken.type === '(number)') {
+            advance();
+            if (nexttoken.type !== '(string)' &&
+                    cssLengthData[nexttoken.value] === true) {
+                adjacent();
+                advance();
+            } else if (+token.value !== 0) {
+                warning("Expected a linear unit and instead saw '{a}'.",
+                    nexttoken, nexttoken.value);
+            }
+            return true;
+        }
+        return false;
+    }
+
+    function cssLineHeight() {
+        if (nexttoken.id === '-') {
+            advance('-');
+            adjacent();
+        }
+        if (nexttoken.type === '(number)') {
+            advance();
+            if (nexttoken.type !== '(string)' &&
+                    cssLengthData[nexttoken.value] === true) {
+                adjacent();
+                advance();
+            }
+            return true;
+        }
+        return false;
+    }
+
+    function cssWidth() {
+        if (nexttoken.identifier) {
+            switch (nexttoken.value) {
+            case 'thin':
+            case 'medium':
+            case 'thick':
+                advance();
+                return true;
+            }
+        } else {
+            return cssLength();
+        }
+    }
+
+    function cssMargin() {
+        if (nexttoken.identifier) {
+            if (nexttoken.value === 'auto') {
+                advance();
+                return true;
+            }
+        } else {
+            return cssLength();
+        }
+    }
+
+    function cssAttr() {
+        if (nexttoken.identifier && nexttoken.value === 'attr') {
+            advance();
+            advance('(');
+            if (!nexttoken.identifier) {
+                warning("Expected a name and instead saw '{a}'.",
+                        nexttoken, nexttoken.value);
+            }
+            advance();
+            advance(')');
+            return true;
+        }
+        return false;
+    }
+
+    function cssCommaList() {
+        while (nexttoken.id !== ';') {
+            if (!cssName() && !cssString()) {
+                warning("Expected a name and instead saw '{a}'.",
+                        nexttoken, nexttoken.value);
+            }
+            if (nexttoken.id !== ',') {
+                return true;
+            }
+            comma();
+        }
+    }
+
+    function cssCounter() {
+        if (nexttoken.identifier && nexttoken.value === 'counter') {
+            advance();
+            advance('(');
+            if (!nexttoken.identifier) {
+            }
+            advance();
+            if (nexttoken.id === ',') {
+                comma();
+                if (nexttoken.type !== '(string)') {
+                    warning("Expected a string and instead saw '{a}'.",
+                        nexttoken, nexttoken.value);
+                }
+                advance();
+            }
+            advance(')');
+            return true;
+        }
+        if (nexttoken.identifier && nexttoken.value === 'counters') {
+            advance();
+            advance('(');
+            if (!nexttoken.identifier) {
+                warning("Expected a name and instead saw '{a}'.",
+                        nexttoken, nexttoken.value);
+            }
+            advance();
+            if (nexttoken.id === ',') {
+                comma();
+                if (nexttoken.type !== '(string)') {
+                    warning("Expected a string and instead saw '{a}'.",
+                        nexttoken, nexttoken.value);
+                }
+                advance();
+            }
+            if (nexttoken.id === ',') {
+                comma();
+                if (nexttoken.type !== '(string)') {
+                    warning("Expected a string and instead saw '{a}'.",
+                        nexttoken, nexttoken.value);
+                }
+                advance();
+            }
+            advance(')');
+            return true;
+        }
+        return false;
+    }
+
+
+    function cssShape() {
+        var i;
+        if (nexttoken.identifier && nexttoken.value === 'rect') {
+            advance();
+            advance('(');
+            for (i = 0; i < 4; i += 1) {
+                if (!cssLength()) {
+                    warning("Expected a number and instead saw '{a}'.",
+                        nexttoken, nexttoken.value);
+                    break;
+                }
+            }
+            advance(')');
+            return true;
+        }
+        return false;
+    }
+
+    function cssUrl() {
+        var c, url;
+        if (nexttoken.identifier && nexttoken.value === 'url') {
+            nexttoken = lex.range('(', ')');
+            url = nexttoken.value;
+            c = url.charAt(0);
+            if (c === '"' || c === '\'') {
+                if (url.slice(-1) !== c) {
+                    warning("Bad url string.");
+                } else {
+                    url = url.slice(1, -1);
+                    if (url.indexOf(c) >= 0) {
+                        warning("Bad url string.");
+                    }
+                }
+            }
+            if (!url) {
+                warning("Missing url.");
+            }
+            advance();
+            if (option.safe && ux.test(url)) {
+                error("ADsafe URL violation.");
+            }
+            urls.push(url);
+            return true;
+        }
+        return false;
+    }
+
+    cssAny = [cssUrl, function () {
+        for (;;) {
+            if (nexttoken.identifier) {
+                switch (nexttoken.value.toLowerCase()) {
+                case 'url':
+                    cssUrl();
+                    break;
+                case 'expression':
+                    warning("Unexpected expression '{a}'.",
+                        nexttoken, nexttoken.value);
+                    advance();
+                    break;
+                default:
+                    advance();
+                }
+            } else {
+                if (nexttoken.id === ';' || nexttoken.id === '!'  ||
+                        nexttoken.id === '(end)' || nexttoken.id === '}') {
+                    return true;
+                }
+                advance();
+            }
+        }
+    }];
+
+    cssBorderStyle = [
+        'none', 'hidden', 'dotted', 'dashed', 'solid', 'double', 'ridge',
+        'inset', 'outset'
+    ];
+
+    cssBreak = [
+        'auto', 'always', 'avoid', 'left', 'right'
+    ];
+
+    cssOverflow = [
+        'auto', 'hidden', 'scroll', 'visible'
+    ];
+
+    cssAttributeData = {
+        background: [
+            true, 'background-attachment', 'background-color',
+            'background-image', 'background-position', 'background-repeat'
+        ],
+        'background-attachment': ['scroll', 'fixed'],
+        'background-color': ['transparent', cssColor],
+        'background-image': ['none', cssUrl],
+        'background-position': [
+            2, [cssLength, 'top', 'bottom', 'left', 'right', 'center']
+        ],
+        'background-repeat': [
+            'repeat', 'repeat-x', 'repeat-y', 'no-repeat'
+        ],
+        'border': [true, 'border-color', 'border-style', 'border-width'],
+        'border-bottom': [
+            true, 'border-bottom-color', 'border-bottom-style',
+            'border-bottom-width'
+        ],
+        'border-bottom-color': cssColor,
+        'border-bottom-style': cssBorderStyle,
+        'border-bottom-width': cssWidth,
+        'border-collapse': ['collapse', 'separate'],
+        'border-color': ['transparent', 4, cssColor],
+        'border-left': [
+            true, 'border-left-color', 'border-left-style', 'border-left-width'
+        ],
+        'border-left-color': cssColor,
+        'border-left-style': cssBorderStyle,
+        'border-left-width': cssWidth,
+        'border-right': [
+            true, 'border-right-color', 'border-right-style',
+            'border-right-width'
+        ],
+        'border-right-color': cssColor,
+        'border-right-style': cssBorderStyle,
+        'border-right-width': cssWidth,
+        'border-spacing': [2, cssLength],
+        'border-style': [4, cssBorderStyle],
+        'border-top': [
+            true, 'border-top-color', 'border-top-style', 'border-top-width'
+        ],
+        'border-top-color': cssColor,
+        'border-top-style': cssBorderStyle,
+        'border-top-width': cssWidth,
+        'border-width': [4, cssWidth],
+        bottom: [cssLength, 'auto'],
+        'caption-side' : ['bottom', 'left', 'right', 'top'],
+        clear: ['both', 'left', 'none', 'right'],
+        clip: [cssShape, 'auto'],
+        color: cssColor,
+        content: [
+            'open-quote', 'close-quote', 'no-open-quote', 'no-close-quote',
+            cssString, cssUrl, cssCounter, cssAttr
+        ],
+        'counter-increment': [
+            cssName, 'none'
+        ],
+        'counter-reset': [
+            cssName, 'none'
+        ],
+        cursor: [
+            cssUrl, 'auto', 'crosshair', 'default', 'e-resize', 'help', 'move',
+            'n-resize', 'ne-resize', 'nw-resize', 'pointer', 's-resize',
+            'se-resize', 'sw-resize', 'w-resize', 'text', 'wait'
+        ],
+        direction: ['ltr', 'rtl'],
+        display: [
+            'block', 'compact', 'inline', 'inline-block', 'inline-table',
+            'list-item', 'marker', 'none', 'run-in', 'table', 'table-caption',
+            'table-cell', 'table-column', 'table-column-group',
+            'table-footer-group', 'table-header-group', 'table-row',
+            'table-row-group'
+        ],
+        'empty-cells': ['show', 'hide'],
+        'float': ['left', 'none', 'right'],
+        font: [
+            'caption', 'icon', 'menu', 'message-box', 'small-caption',
+            'status-bar', true, 'font-size', 'font-style', 'font-weight',
+            'font-family'
+        ],
+        'font-family': cssCommaList,
+        'font-size': [
+            'xx-small', 'x-small', 'small', 'medium', 'large', 'x-large',
+            'xx-large', 'larger', 'smaller', cssLength
+        ],
+        'font-size-adjust': ['none', cssNumber],
+        'font-stretch': [
+            'normal', 'wider', 'narrower', 'ultra-condensed',
+            'extra-condensed', 'condensed', 'semi-condensed',
+            'semi-expanded', 'expanded', 'extra-expanded'
+        ],
+        'font-style': [
+            'normal', 'italic', 'oblique'
+        ],
+        'font-variant': [
+            'normal', 'small-caps'
+        ],
+        'font-weight': [
+            'normal', 'bold', 'bolder', 'lighter', cssNumber
+        ],
+        height: [cssLength, 'auto'],
+        left: [cssLength, 'auto'],
+        'letter-spacing': ['normal', cssLength],
+        'line-height': ['normal', cssLineHeight],
+        'list-style': [
+            true, 'list-style-image', 'list-style-position', 'list-style-type'
+        ],
+        'list-style-image': ['none', cssUrl],
+        'list-style-position': ['inside', 'outside'],
+        'list-style-type': [
+            'circle', 'disc', 'square', 'decimal', 'decimal-leading-zero',
+            'lower-roman', 'upper-roman', 'lower-greek', 'lower-alpha',
+            'lower-latin', 'upper-alpha', 'upper-latin', 'hebrew', 'katakana',
+            'hiragana-iroha', 'katakana-oroha', 'none'
+        ],
+        margin: [4, cssMargin],
+        'margin-bottom': cssMargin,
+        'margin-left': cssMargin,
+        'margin-right': cssMargin,
+        'margin-top': cssMargin,
+        'marker-offset': [cssLength, 'auto'],
+        'max-height': [cssLength, 'none'],
+        'max-width': [cssLength, 'none'],
+        'min-height': cssLength,
+        'min-width': cssLength,
+        opacity: cssNumber,
+        outline: [true, 'outline-color', 'outline-style', 'outline-width'],
+        'outline-color': ['invert', cssColor],
+        'outline-style': [
+            'dashed', 'dotted', 'double', 'groove', 'inset', 'none',
+            'outset', 'ridge', 'solid'
+        ],
+        'outline-width': cssWidth,
+        overflow: cssOverflow,
+        'overflow-x': cssOverflow,
+        'overflow-y': cssOverflow,
+        padding: [4, cssLength],
+        'padding-bottom': cssLength,
+        'padding-left': cssLength,
+        'padding-right': cssLength,
+        'padding-top': cssLength,
+        'page-break-after': cssBreak,
+        'page-break-before': cssBreak,
+        position: ['absolute', 'fixed', 'relative', 'static'],
+        quotes: [8, cssString],
+        right: [cssLength, 'auto'],
+        'table-layout': ['auto', 'fixed'],
+        'text-align': ['center', 'justify', 'left', 'right'],
+        'text-decoration': [
+            'none', 'underline', 'overline', 'line-through', 'blink'
+        ],
+        'text-indent': cssLength,
+        'text-shadow': ['none', 4, [cssColor, cssLength]],
+        'text-transform': ['capitalize', 'uppercase', 'lowercase', 'none'],
+        top: [cssLength, 'auto'],
+        'unicode-bidi': ['normal', 'embed', 'bidi-override'],
+        'vertical-align': [
+            'baseline', 'bottom', 'sub', 'super', 'top', 'text-top', 'middle',
+            'text-bottom', cssLength
+        ],
+        visibility: ['visible', 'hidden', 'collapse'],
+        'white-space': [
+            'normal', 'nowrap', 'pre', 'pre-line', 'pre-wrap', 'inherit'
+        ],
+        width: [cssLength, 'auto'],
+        'word-spacing': ['normal', cssLength],
+        'word-wrap': ['break-word', 'normal'],
+        'z-index': ['auto', cssNumber]
+    };
+
+    function styleAttribute() {
+        var v;
+        while (nexttoken.id === '*' || nexttoken.id === '#' ||
+                nexttoken.value === '_') {
+            if (!option.css) {
+                warning("Unexpected '{a}'.", nexttoken, nexttoken.value);
+            }
+            advance();
+        }
+        if (nexttoken.id === '-') {
+            if (!option.css) {
+                warning("Unexpected '{a}'.", nexttoken, nexttoken.value);
+            }
+            advance('-');
+            if (!nexttoken.identifier) {
+                warning(
+"Expected a non-standard style attribute and instead saw '{a}'.",
+                    nexttoken, nexttoken.value);
+            }
+            advance();
+            return cssAny;
+        } else {
+            if (!nexttoken.identifier) {
+                warning("Excepted a style attribute, and instead saw '{a}'.",
+                    nexttoken, nexttoken.value);
+            } else {
+                if (is_own(cssAttributeData, nexttoken.value)) {
+                    v = cssAttributeData[nexttoken.value];
+                } else {
+                    v = cssAny;
+                    if (!option.css) {
+                        warning("Unrecognized style attribute '{a}'.",
+                                nexttoken, nexttoken.value);
+                    }
+                }
+            }
+            advance();
+            return v;
+        }
+    }
+
+    function styleValue(v) {
+        var i = 0,
+            n,
+            once,
+            match,
+            round,
+            start = 0,
+            vi;
+        switch (typeof v) {
+        case 'function':
+            return v();
+        case 'string':
+            if (nexttoken.identifier && nexttoken.value === v) {
+                advance();
+                return true;
+            }
+            return false;
+        }
+        for (;;) {
+            if (i >= v.length) {
+                return false;
+            }
+            vi = v[i];
+            i += 1;
+            if (vi === true) {
+                break;
+            } else if (typeof vi === 'number') {
+                n = vi;
+                vi = v[i];
+                i += 1;
+            } else {
+                n = 1;
+            }
+            match = false;
+            while (n > 0) {
+                if (styleValue(vi)) {
+                    match = true;
+                    n -= 1;
+                } else {
+                    break;
+                }
+            }
+            if (match) {
+                return true;
+            }
+        }
+        start = i;
+        once = [];
+        for (;;) {
+            round = false;
+            for (i = start; i < v.length; i += 1) {
+                if (!once[i]) {
+                    if (styleValue(cssAttributeData[v[i]])) {
+                        match = true;
+                        round = true;
+                        once[i] = true;
+                        break;
+                    }
+                }
+            }
+            if (!round) {
+                return match;
+            }
+        }
+    }
+
+    function styleChild() {
+        if (nexttoken.id === '(number)') {
+            advance();
+            if (nexttoken.value === 'n' && nexttoken.identifier) {
+                adjacent();
+                advance();
+                if (nexttoken.id === '+') {
+                    adjacent();
+                    advance('+');
+                    adjacent();
+                    advance('(number)');
+                }
+            }
+            return;
+        } else {
+            switch (nexttoken.value) {
+            case 'odd':
+            case 'even':
+                if (nexttoken.identifier) {
+                    advance();
+                    return;
+                }
+            }
+        }
+        warning("Unexpected token '{a}'.", nexttoken, nexttoken.value);
+    }
+
+    function substyle() {
+        var v;
+        for (;;) {
+            if (nexttoken.id === '}' || nexttoken.id === '(end)' ||
+                    xquote && nexttoken.id === xquote) {
+                return;
+            }
+            while (nexttoken.id === ';') {
+                warning("Misplaced ';'.");
+                advance(';');
+            }
+            v = styleAttribute();
+            advance(':');
+            if (nexttoken.identifier && nexttoken.value === 'inherit') {
+                advance();
+            } else {
+                if (!styleValue(v)) {
+                    warning("Unexpected token '{a}'.", nexttoken,
+                        nexttoken.value);
+                    advance();
+                }
+            }
+            if (nexttoken.id === '!') {
+                advance('!');
+                adjacent();
+                if (nexttoken.identifier && nexttoken.value === 'important') {
+                    advance();
+                } else {
+                    warning("Expected '{a}' and instead saw '{b}'.",
+                        nexttoken, 'important', nexttoken.value);
+                }
+            }
+            if (nexttoken.id === '}' || nexttoken.id === xquote) {
+// Trailing ';' is optional if not disallowed - see http://www.w3.org/TR/css-style-attr/#syntax
+//                warning("Missing '{a}'.", nexttoken, ';');
+            } else {
+                advance(';');
+            }
+        }
+    }
+
+    function styleSelector() {
+        if (nexttoken.identifier) {
+            if (!is_own(htmltag, nexttoken.value)) {
+                warning("Expected a tagName, and instead saw {a}.",
+                    nexttoken, nexttoken.value);
+            }
+            advance();
+        } else {
+            switch (nexttoken.id) {
+            case '>':
+            case '+':
+                advance();
+                styleSelector();
+                break;
+            case ':':
+                advance(':');
+                switch (nexttoken.value) {
+                case 'active':
+                case 'after':
+                case 'before':
+                case 'checked':
+                case 'disabled':
+                case 'empty':
+                case 'enabled':
+                case 'first-child':
+                case 'first-letter':
+                case 'first-line':
+                case 'first-of-type':
+                case 'focus':
+                case 'hover':
+                case 'last-of-type':
+                case 'link':
+                case 'only-of-type':
+                case 'root':
+                case 'target':
+                case 'visited':
+                    advance();
+                    break;
+                case 'lang':
+                    advance();
+                    advance('(');
+                    if (!nexttoken.identifier) {
+                        warning("Expected a lang code, and instead saw :{a}.",
+                            nexttoken, nexttoken.value);
+                    }
+                    advance(')');
+                    break;
+                case 'nth-child':
+                case 'nth-last-child':
+                case 'nth-last-of-type':
+                case 'nth-of-type':
+                    advance();
+                    advance('(');
+                    styleChild();
+                    advance(')');
+                    break;
+                case 'not':
+                    advance();
+                    advance('(');
+                    if (nexttoken.id === ':' && peek(0).value === 'not') {
+                        warning("Nested not.");
+                    }
+                    styleSelector();
+                    advance(')');
+                    break;
+                default:
+                    warning("Expected a pseudo, and instead saw :{a}.",
+                        nexttoken, nexttoken.value);
+                }
+                break;
+            case '#':
+                advance('#');
+                if (!nexttoken.identifier) {
+                    warning("Expected an id, and instead saw #{a}.",
+                        nexttoken, nexttoken.value);
+                }
+                advance();
+                break;
+            case '*':
+                advance('*');
+                break;
+            case '.':
+                advance('.');
+                if (!nexttoken.identifier) {
+                    warning("Expected a class, and instead saw #.{a}.",
+                        nexttoken, nexttoken.value);
+                }
+                advance();
+                break;
+            case '[':
+                advance('[');
+                if (!nexttoken.identifier) {
+                    warning("Expected an attribute, and instead saw [{a}].",
+                        nexttoken, nexttoken.value);
+                }
+                advance();
+                if (nexttoken.id === '=' || nexttoken.value === '~=' ||
+                        nexttoken.value === '$=' ||
+                        nexttoken.value === '|=' ||
+                        nexttoken.id === '*=' ||
+                        nexttoken.id === '^=') {
+                    advance();
+                    if (nexttoken.type !== '(string)') {
+                        warning("Expected a string, and instead saw {a}.",
+                            nexttoken, nexttoken.value);
+                    }
+                    advance();
+                }
+                advance(']');
+                break;
+            default:
+                error("Expected a CSS selector, and instead saw {a}.",
+                    nexttoken, nexttoken.value);
+            }
+        }
+    }
+
+    function stylePattern() {
+        var name;
+        if (nexttoken.id === '{') {
+            warning("Expected a style pattern, and instead saw '{a}'.", nexttoken,
+                nexttoken.id);
+        } else if (nexttoken.id === '@') {
+            advance('@');
+            name = nexttoken.value;
+            if (nexttoken.identifier && atrule[name] === true) {
+                advance();
+                return name;
+            }
+            warning("Expected an at-rule, and instead saw @{a}.", nexttoken, name);
+        }
+        for (;;) {
+            styleSelector();
+            if (nexttoken.id === '</' || nexttoken.id === '{' ||
+                    nexttoken.id === '(end)') {
+                return '';
+            }
+            if (nexttoken.id === ',') {
+                comma();
+            }
+        }
+    }
+
+    function styles() {
+        var i;
+        while (nexttoken.id === '@') {
+            i = peek();
+            if (i.identifier && i.value === 'import') {
+                advance('@');
+                advance();
+                if (!cssUrl()) {
+                    warning("Expected '{a}' and instead saw '{b}'.", nexttoken,
+                        'url', nexttoken.value);
+                    advance();
+                }
+                advance(';');
+            } else {
+                break;
+            }
+        }
+        while (nexttoken.id !== '</' && nexttoken.id !== '(end)') {
+            stylePattern();
+            xmode = 'styleproperty';
+            if (nexttoken.id === ';') {
+                advance(';');
+            } else {
+                advance('{');
+                substyle();
+                xmode = 'style';
+                advance('}');
+            }
+        }
+    }
+
+
+// HTML parsing.
+
+    function doBegin(n) {
+        if (n !== 'html' && !option.fragment) {
+            if (n === 'div' && option.adsafe) {
+                error("ADSAFE: Use the fragment option.");
+            } else {
+                error("Expected '{a}' and instead saw '{b}'.",
+                    token, 'html', n);
+            }
+        }
+        if (option.adsafe) {
+            if (n === 'html') {
+                error(
+"Currently, ADsafe does not operate on whole HTML documents. It operates on <div> fragments and .js files.", token);
+            }
+            if (option.fragment) {
+                if (n !== 'div') {
+                    error("ADsafe violation: Wrap the widget in a div.", token);
+                }
+            } else {
+                error("Use the fragment option.", token);
+            }
+        }
+        option.browser = true;
+        assume();
+    }
+
+    function doAttribute(n, a, v) {
+        var u, x;
+        if (a === 'id') {
+            u = typeof v === 'string' ? v.toUpperCase() : '';
+            if (ids[u] === true) {
+                warning("Duplicate id='{a}'.", nexttoken, v);
+            }
+            // No random syntax in ids
+            /*if (!/^[A-Za-z][A-Za-z0-9._:\-]*$/.test(v)) {
+                warning("Bad id: '{a}'.", nexttoken, v);
+            } else*/ if (option.adsafe) {
+                if (adsafe_id) {
+                    if (v.slice(0, adsafe_id.length) !== adsafe_id) {
+                        warning("ADsafe violation: An id must have a '{a}' prefix",
+                                nexttoken, adsafe_id);
+                    } else if (!/^[A-Z]+_[A-Z]+$/.test(v)) {
+                        warning("ADSAFE violation: bad id.");
+                    }
+                } else {
+                    adsafe_id = v;
+                    if (!/^[A-Z]+_$/.test(v)) {
+                        warning("ADSAFE violation: bad id.");
+                    }
+                }
+            }
+            x = v.search(dx);
+            if (x >= 0) {
+                warning("Unexpected character '{a}' in {b}.", token, v.charAt(x), a);
+            }
+            ids[u] = true;
+        } else if (/*a === 'class' || */a === 'type' || a === 'name') { // class' content is cdata
+            x = v.search(qx);
+            if (x >= 0) {
+                warning("Unexpected character '{a}' in {b}.", token, v.charAt(x), a);
+            }
+            ids[u] = true;
+        } else if (a === 'href' || a === 'background' ||
+                a === 'content' || a === 'data' ||
+                a.indexOf('src') >= 0 || a.indexOf('url') >= 0) {
+            if (option.safe && ux.test(v)) {
+                error("ADsafe URL violation.");
+            }
+            urls.push(v);
+        } else if (a === 'for') {
+            if (option.adsafe) {
+                if (adsafe_id) {
+                    if (v.slice(0, adsafe_id.length) !== adsafe_id) {
+                        warning("ADsafe violation: An id must have a '{a}' prefix",
+                                nexttoken, adsafe_id);
+                    } else if (!/^[A-Z]+_[A-Z]+$/.test(v)) {
+                        warning("ADSAFE violation: bad id.");
+                    }
+                } else {
+                    warning("ADSAFE violation: bad id.");
+                }
+            }
+        } else if (a === 'name') {
+            if (option.adsafe && v.indexOf('_') >= 0) {
+                warning("ADsafe name violation.");
+            }
+        }
+    }
+
+    function doTag(n, a) {
+        var i, t = htmltag[n], x;
+        src = false;
+        if (!t) {
+            error("Unrecognized tag '<{a}>'.",
+                    nexttoken,
+                    n === n.toLowerCase() ? n :
+                        n + ' (capitalization error)');
+        }
+        if (stack.length > 0) {
+            if (n === 'html') {
+                error("Too many <html> tags.", token);
+            }
+            x = t.parent;
+            if (x) {
+                if (x.indexOf(' ' + stack[stack.length - 1].name + ' ') < 0) {
+                    error("A '<{a}>' must be within '<{b}>'.",
+                            token, n, x);
+                }
+            } else if (!option.adsafe && !option.fragment) {
+                i = stack.length;
+                do {
+                    if (i <= 0) {
+                        error("A '<{a}>' must be within '<{b}>'.",
+                                token, n, 'body');
+                    }
+                    i -= 1;
+                } while (stack[i].name !== 'body');
+            }
+        }
+        switch (n) {
+        case 'div':
+            if (option.adsafe && stack.length === 1 && !adsafe_id) {
+                warning("ADSAFE violation: missing ID_.");
+            }
+            break;
+        case 'script':
+            xmode = 'script';
+            advance('>');
+            indent = nexttoken.from;
+            if (a.lang) {
+                warning("lang is deprecated.", token);
+            }
+            if (option.adsafe && stack.length !== 1) {
+                warning("ADsafe script placement violation.", token);
+            }
+            if (a.src) {
+                if (option.adsafe && (!adsafe_may || !approved[a.src])) {
+                    warning("ADsafe unapproved script source.", token);
+                }
+                /*if (a.type) {
+                    warning("type is unnecessary.", token);
+                }*/
+            } else {
+
+                if (a.type && a.type !== 'text/javascript') {
+                    lex.skip_till('</script>');
+                    advance();
+                } else {
+                    if (adsafe_went) {
+                        error("ADsafe script violation.", token);
+                    }
+                    statements('script');
+                }
+            }
+            xmode = 'html';
+            advance('</');
+            if (!nexttoken.identifier && nexttoken.value !== 'script') {
+                warning("Expected '{a}' and instead saw '{b}'.",
+                        nexttoken, 'script', nexttoken.value);
+            }
+            advance();
+            xmode = 'outer';
+            break;
+        case 'style':
+            xmode = 'style';
+            advance('>');
+            styles();
+            xmode = 'html';
+            advance('</');
+            if (!nexttoken.identifier && nexttoken.value !== 'style') {
+                warning("Expected '{a}' and instead saw '{b}'.",
+                        nexttoken, 'style', nexttoken.value);
+            }
+            advance();
+            xmode = 'outer';
+            break;
+        case 'input':
+            switch (a.type) {
+            case 'radio':
+            case 'checkbox':
+            case 'button':
+            case 'reset':
+            case 'submit':
+                break;
+            case 'text':
+            case 'file':
+            case 'password':
+            case 'file':
+            case 'hidden':
+            case 'image':
+                if (option.adsafe && a.autocomplete !== 'off') {
+                    warning("ADsafe autocomplete violation.");
+                }
+                break;
+            default:
+                warning("Bad input type.");
+            }
+            break;
+        case 'applet':
+        case 'body':
+        case 'embed':
+        case 'frame':
+        case 'frameset':
+        case 'head':
+        case 'iframe':
+        case 'noembed':
+        case 'noframes':
+        case 'object':
+        case 'param':
+            if (option.adsafe) {
+                warning("ADsafe violation: Disallowed tag: " + n);
+            }
+            break;
+        }
+    }
+
+
+    function closetag(n) {
+        return '</' + n + '>';
+    }
+
+    function html() {
+        var a, attributes, e, n, q, t, v, w = option.white, wmode;
+        xmode = 'html';
+        xquote = '';
+        stack = null;
+        for (;;) {
+            switch (nexttoken.value) {
+            case '<':
+                xmode = 'html';
+                advance('<');
+                attributes = {};
+                t = nexttoken;
+                if (!t.identifier) {
+                    warning("Bad identifier {a}.", t, t.value);
+                }
+                n = t.value;
+                if (option.cap) {
+                    n = n.toLowerCase();
+                }
+                t.name = n;
+                advance();
+                if (!stack) {
+                    stack = [];
+                    doBegin(n);
+                }
+                v = htmltag[n];
+                if (typeof v !== 'object') {
+                    error("Unrecognized tag '<{a}>'.", t, n);
+                }
+                e = v.empty;
+                t.type = n;
+                for (;;) {
+                    if (nexttoken.id === '/') {
+                        advance('/');
+                        if (nexttoken.id !== '>') {
+                            warning("Expected '{a}' and instead saw '{b}'.",
+                                    nexttoken, '>', nexttoken.value);
+                        }
+                        break;
+                    }
+                    if (nexttoken.id && nexttoken.id.substr(0, 1) === '>') {
+                        break;
+                    }
+                    if (!nexttoken.identifier) {
+                        if (nexttoken.id === '(end)' || nexttoken.id === '(error)') {
+                            error("Missing '>'.", nexttoken);
+                        }
+                        warning("Bad identifier.");
+                    }
+// Don't try to enable white if we said no
+//                    option.white = true;
+                    nonadjacent(token, nexttoken);
+                    a = nexttoken.value;
+//                    option.white = w;
+                    advance();
+                    if (!option.cap && a !== a.toLowerCase()) {
+                        warning("Attribute '{a}' not all lower case.", nexttoken, a);
+                    }
+                    a = a.toLowerCase();
+                    xquote = '';
+                    if (is_own(attributes, a)) {
+                        warning("Attribute '{a}' repeated.", nexttoken, a);
+                    }
+                    if (a.slice(0, 2) === 'on') {
+                        if (!option.on) {
+                            warning("Avoid HTML event handlers.");
+                        }
+                        xmode = 'scriptstring';
+                        advance('=');
+                        q = nexttoken.id;
+                        if (q !== '"' && q !== "'") {
+                            error("Missing quote.");
+                        }
+                        xquote = q;
+                        wmode = option.white;
+                        option.white = false;
+                        advance(q);
+                        statements('on');
+                        option.white = wmode;
+                        if (nexttoken.id !== q) {
+                            error("Missing close quote on script attribute.");
+                        }
+                        xmode = 'html';
+                        xquote = '';
+                        advance(q);
+                        v = false;
+                    } else if (a === 'style') {
+                        xmode = 'scriptstring';
+                        advance('=');
+                        q = nexttoken.id;
+                        if (q !== '"' && q !== "'") {
+                            error("Missing quote.");
+                        }
+                        xmode = 'styleproperty';
+                        xquote = q;
+                        advance(q);
+                        substyle();
+                        xmode = 'html';
+                        xquote = '';
+                        advance(q);
+                        v = false;
+                    } else {
+                        if (nexttoken.id === '=') {
+                            advance('=');
+                            v = nexttoken.value;
+                            if (!nexttoken.identifier &&
+                                    nexttoken.id !== '"' &&
+                                    nexttoken.id !== '\'' &&
+                                    nexttoken.type !== '(string)' &&
+                                    nexttoken.type !== '(number)' &&
+                                    nexttoken.type !== '(color)') {
+                                warning("Expected an attribute value and instead saw '{a}'.", token, a);
+                            }
+                            advance();
+                        } else {
+                            v = true;
+                        }
+                    }
+                    attributes[a] = v;
+                    doAttribute(n, a, v);
+                }
+                doTag(n, attributes);
+                if (!e) {
+                    stack.push(t);
+                }
+                xmode = 'outer';
+                advance('>');
+                break;
+            case '</':
+                xmode = 'html';
+                advance('</');
+                if (!nexttoken.identifier) {
+                    warning("Bad identifier.");
+                }
+                n = nexttoken.value;
+                if (option.cap) {
+                    n = n.toLowerCase();
+                }
+                advance();
+                if (!stack) {
+                    error("Unexpected '{a}'.", nexttoken, closetag(n));
+                }
+                t = stack.pop();
+                if (!t) {
+                    error("Unexpected '{a}'.", nexttoken, closetag(n));
+                }
+                if (t.name !== n) {
+                    error("Expected '{a}' and instead saw '{b}'.",
+                            nexttoken, closetag(t.name), closetag(n));
+                }
+                if (nexttoken.id !== '>') {
+                    error("Missing '{a}'.", nexttoken, '>');
+                }
+                xmode = 'outer';
+                advance('>');
+                break;
+            case '<!':
+                if (option.safe) {
+                    warning("ADsafe HTML violation.");
+                }
+                xmode = 'html';
+                for (;;) {
+                    advance();
+                    if (nexttoken.id === '>' || nexttoken.id === '(end)') {
+                        break;
+                    }
+                    if (nexttoken.value.indexOf('--') >= 0) {
+                        warning("Unexpected --.");
+                    }
+                    if (nexttoken.value.indexOf('<') >= 0) {
+                        warning("Unexpected <.");
+                    }
+                    if (nexttoken.value.indexOf('>') >= 0) {
+                        warning("Unexpected >.");
+                    }
+                }
+                xmode = 'outer';
+                advance('>');
+                break;
+            case '(end)':
+                return;
+            default:
+                if (nexttoken.id === '(end)') {
+                    error("Missing '{a}'.", nexttoken,
+                            '</' + stack[stack.length - 1].value + '>');
+                } else {
+                    advance();
+                }
+            }
+            if (stack && stack.length === 0 && (option.adsafe ||
+                    !option.fragment || nexttoken.id === '(end)')) {
+                break;
+            }
+        }
+        if (nexttoken.id !== '(end)') {
+            error("Unexpected material after the end.");
+        }
+    }
+
+
+// Build the syntax table by declaring the syntactic elements of the language.
+
+    type('(number)', idValue);
+    type('(string)', idValue);
+
+    syntax['(identifier)'] = {
+        type: '(identifier)',
+        lbp: 0,
+        identifier: true,
+        nud: function () {
+            var v = this.value,
+                s = scope[v],
+                f;
+            if (typeof s === 'function') {
+                s = undefined;
+            } else if (typeof s === 'boolean') {
+                f = funct;
+                funct = functions[0];
+                addlabel(v, 'var');
+                s = funct;
+                funct = f;
+            }
+
+// The name is in scope and defined in the current function.
+
+            if (funct === s) {
+
+//      Change 'unused' to 'var', and reject labels.
+
+                switch (funct[v]) {
+                case 'unused':
+                    funct[v] = 'var';
+                    break;
+                case 'label':
+                    warning("'{a}' is a statement label.", token, v);
+                    break;
+                }
+
+// The name is not defined in the function.  If we are in the global scope,
+// then we have an undefined variable.
+
+            } else if (funct['(global)']) {
+                if (option.undef && predefined[v] !== 'boolean') {
+                    warning("'{a}' is not defined.", token, v);
+                }
+                note_implied(token);
+
+// If the name is already defined in the current
+// function, but not as outer, then there is a scope error.
+
+            } else {
+                switch (funct[v]) {
+                case 'closure':
+                case 'function':
+                case 'var':
+                case 'unused':
+                    warning("'{a}' used out of scope.", token, v);
+                    break;
+                case 'label':
+                    warning("'{a}' is a statement label.", token, v);
+                    break;
+                case 'outer':
+                case 'global':
+                    break;
+                default:
+
+// If the name is defined in an outer function, make an outer entry, and if
+// it was unused, make it var.
+
+                    if (s === true) {
+                        funct[v] = true;
+                    } else if (s === null) {
+                        warning("'{a}' is not allowed.", token, v);
+                        note_implied(token);
+                    } else if (typeof s !== 'object') {
+                        if (option.undef) {
+                            warning("'{a}' is not defined.", token, v);
+                        } else {
+                            funct[v] = true;
+                        }
+                        note_implied(token);
+                    } else {
+                        switch (s[v]) {
+                        case 'function':
+                        case 'var':
+                        case 'unused':
+                            s[v] = 'closure';
+                            funct[v] = s['(global)'] ? 'global' : 'outer';
+                            break;
+                        case 'closure':
+                        case 'parameter':
+                            funct[v] = s['(global)'] ? 'global' : 'outer';
+                            break;
+                        case 'label':
+                            warning("'{a}' is a statement label.", token, v);
+                        }
+                    }
+                }
+            }
+            return this;
+        },
+        led: function () {
+            error("Expected an operator and instead saw '{a}'.",
+                    nexttoken, nexttoken.value);
+        }
+    };
+
+    type('(regexp)', function () {
+        return this;
+    });
+
+
+// ECMAScript parser
+
+    delim('(endline)');
+    delim('(begin)');
+    delim('(end)').reach = true;
+    delim('</').reach = true;
+    delim('<!');
+    delim('<!--');
+    delim('-->');
+    delim('(error)').reach = true;
+    delim('}').reach = true;
+    delim(')');
+    delim(']');
+    delim('"').reach = true;
+    delim("'").reach = true;
+    delim(';');
+    delim(':').reach = true;
+    delim(',');
+    delim('#');
+    delim('@');
+    reserve('else');
+    reserve('case').reach = true;
+    reserve('catch');
+    reserve('default').reach = true;
+    reserve('finally');
+    reservevar('arguments');
+    reservevar('eval');
+    reservevar('false');
+    reservevar('Infinity');
+    reservevar('NaN');
+    reservevar('null');
+    reservevar('this');
+    reservevar('true');
+    reservevar('undefined');
+    assignop('=', 'assign', 20);
+    assignop('+=', 'assignadd', 20);
+    assignop('-=', 'assignsub', 20);
+    assignop('*=', 'assignmult', 20);
+    assignop('/=', 'assigndiv', 20).nud = function () {
+        error("A regular expression literal can be confused with '/='.");
+    };
+    assignop('%=', 'assignmod', 20);
+    bitwiseassignop('&=', 'assignbitand', 20);
+    bitwiseassignop('|=', 'assignbitor', 20);
+    bitwiseassignop('^=', 'assignbitxor', 20);
+    bitwiseassignop('<<=', 'assignshiftleft', 20);
+    bitwiseassignop('>>=', 'assignshiftright', 20);
+    bitwiseassignop('>>>=', 'assignshiftrightunsigned', 20);
+    infix('?', function (left, that) {
+        that.left = left;
+        that.right = parse(10);
+        advance(':');
+        that['else'] = parse(10);
+        return that;
+    }, 30);
+
+    infix('||', 'or', 40);
+    infix('&&', 'and', 50);
+    bitwise('|', 'bitor', 70);
+    bitwise('^', 'bitxor', 80);
+    bitwise('&', 'bitand', 90);
+    relation('==', function (left, right) {
+        if (option.eqeqeq) {
+            warning("Expected '{a}' and instead saw '{b}'.",
+                    this, '===', '==');
+        } else if (isPoorRelation(left)) {
+            warning("Use '{a}' to compare with '{b}'.",
+                this, '===', left.value);
+        } else if (isPoorRelation(right)) {
+            warning("Use '{a}' to compare with '{b}'.",
+                this, '===', right.value);
+        }
+        return this;
+    });
+    relation('===');
+    relation('!=', function (left, right) {
+        if (option.eqeqeq) {
+            warning("Expected '{a}' and instead saw '{b}'.",
+                    this, '!==', '!=');
+        } else if (isPoorRelation(left)) {
+            warning("Use '{a}' to compare with '{b}'.",
+                    this, '!==', left.value);
+        } else if (isPoorRelation(right)) {
+            warning("Use '{a}' to compare with '{b}'.",
+                    this, '!==', right.value);
+        }
+        return this;
+    });
+    relation('!==');
+    relation('<');
+    relation('>');
+    relation('<=');
+    relation('>=');
+    bitwise('<<', 'shiftleft', 120);
+    bitwise('>>', 'shiftright', 120);
+    bitwise('>>>', 'shiftrightunsigned', 120);
+    infix('in', 'in', 120);
+    infix('instanceof', 'instanceof', 120);
+    infix('+', function (left, that) {
+        var right = parse(130);
+        if (left && right && left.id === '(string)' && right.id === '(string)') {
+            left.value += right.value;
+            left.character = right.character;
+            if (jx.test(left.value)) {
+                warning("JavaScript URL.", left);
+            }
+            return left;
+        }
+        that.left = left;
+        that.right = right;
+        return that;
+    }, 130);
+    prefix('+', 'num');
+    prefix('+++', function () {
+        warning("Confusing pluses.");
+        this.right = parse(150);
+        this.arity = 'unary';
+        return this;
+    });
+    infix('+++', function (left) {
+        warning("Confusing pluses.");
+        this.left = left;
+        this.right = parse(130);
+        return this;
+    }, 130);
+    infix('-', 'sub', 130);
+    prefix('-', 'neg');
+    prefix('---', function () {
+        warning("Confusing minuses.");
+        this.right = parse(150);
+        this.arity = 'unary';
+        return this;
+    });
+    infix('---', function (left) {
+        warning("Confusing minuses.");
+        this.left = left;
+        this.right = parse(130);
+        return this;
+    }, 130);
+    infix('*', 'mult', 140);
+    infix('/', 'div', 140);
+    infix('%', 'mod', 140);
+
+    suffix('++', 'postinc');
+    prefix('++', 'preinc');
+    syntax['++'].exps = true;
+
+    suffix('--', 'postdec');
+    prefix('--', 'predec');
+    syntax['--'].exps = true;
+    prefix('delete', function () {
+        var p = parse(0);
+        if (!p || (p.id !== '.' && p.id !== '[')) {
+            warning("Expected '{a}' and instead saw '{b}'.",
+                    nexttoken, '.', nexttoken.value);
+        }
+        this.first = p;
+        return this;
+    }).exps = true;
+
+
+    prefix('~', function () {
+        if (option.bitwise) {
+            warning("Unexpected '{a}'.", this, '~');
+        }
+        parse(150);
+        return this;
+    });
+    prefix('!', function () {
+        this.right = parse(150);
+        this.arity = 'unary';
+        if (bang[this.right.id] === true) {
+            warning("Confusing use of '{a}'.", this, '!');
+        }
+        return this;
+    });
+    prefix('typeof', 'typeof');
+    prefix('new', function () {
+        var c = parse(155), i;
+        if (c && c.id !== 'function') {
+            if (c.identifier) {
+                c['new'] = true;
+                switch (c.value) {
+                case 'Object':
+                    warning("Use the object literal notation {}.", token);
+                    break;
+                case 'Array':
+                    if (nexttoken.id !== '(') {
+                        warning("Use the array literal notation [].", token);
+                    } else {
+                        advance('(');
+                        if (nexttoken.id === ')') {
+                            warning("Use the array literal notation [].", token);
+                        } else {
+                            i = parse(0);
+                            c.dimension = i;
+                            if ((i.id === '(number)' && /[.+\-Ee]/.test(i.value)) ||
+                                    (i.id === '-' && !i.right) ||
+                                    i.id === '(string)' || i.id === '[' ||
+                                    i.id === '{' || i.id === 'true' ||
+                                    i.id === 'false' ||
+                                    i.id === 'null' || i.id === 'undefined' ||
+                                    i.id === 'Infinity') {
+                                warning("Use the array literal notation [].", token);
+                            }
+                            if (nexttoken.id !== ')') {
+                                error("Use the array literal notation [].", token);
+                            }
+                        }
+                        advance(')');
+                    }
+                    this.first = c;
+                    return this;
+                case 'Number':
+                case 'String':
+                case 'Boolean':
+                case 'Math':
+                case 'JSON':
+                    warning("Do not use {a} as a constructor.", token, c.value);
+                    break;
+                case 'Function':
+                    if (!option.evil) {
+                        warning("The Function constructor is eval.");
+                    }
+                    break;
+                case 'Date':
+                case 'RegExp':
+                    break;
+                default:
+                    if (c.id !== 'function') {
+                        i = c.value.substr(0, 1);
+                        if (option.newcap && (i < 'A' || i > 'Z')) {
+                            warning(
+                    "A constructor name should start with an uppercase letter.",
+                                token);
+                        }
+                    }
+                }
+            } else {
+                if (c.id !== '.' && c.id !== '[' && c.id !== '(') {
+                    warning("Bad constructor.", token);
+                }
+            }
+        } else {
+            warning("Weird construction. Delete 'new'.", this);
+        }
+        adjacent(token, nexttoken);
+        if (nexttoken.id !== '(') {
+            warning("Missing '()' invoking a constructor.");
+        }
+        this.first = c;
+        return this;
+    });
+    syntax['new'].exps = true;
+
+    infix('.', function (left, that) {
+        adjacent(prevtoken, token);
+        var m = identifier();
+        if (typeof m === 'string') {
+            countMember(m);
+        }
+        that.left = left;
+        that.right = m;
+        if (!option.evil && left && left.value === 'document' &&
+                (m === 'write' || m === 'writeln')) {
+            warning("document.write can be a form of eval.", left);
+        } else if (option.adsafe) {
+            if (left && left.value === 'ADSAFE') {
+                if (m === 'id' || m === 'lib') {
+                    warning("ADsafe violation.", that);
+                } else if (m === 'go') {
+                    if (xmode !== 'script') {
+                        warning("ADsafe violation.", that);
+                    } else if (adsafe_went || nexttoken.id !== '(' ||
+                            peek(0).id !== '(string)' ||
+                            peek(0).value !== adsafe_id ||
+                            peek(1).id !== ',') {
+                        error("ADsafe violation: go.", that);
+                    }
+                    adsafe_went = true;
+                    adsafe_may = false;
+                }
+            }
+        }
+        if (!option.evil && (m === 'eval' || m === 'execScript')) {
+            warning('eval is evil.');
+        } else if (option.safe) {
+            for (;;) {
+                if (banned[m] === true) {
+                    warning("ADsafe restricted word '{a}'.", token, m);
+                }
+                if (typeof predefined[left.value] !== 'boolean' ||
+                        nexttoken.id === '(') {
+                    break;
+                }
+                if (standard_member[m] === true) {
+                    if (nexttoken.id === '.') {
+                        warning("ADsafe violation.", that);
+                    }
+                    break;
+                }
+                if (nexttoken.id !== '.') {
+                    warning("ADsafe violation.", that);
+                    break;
+                }
+                advance('.');
+                token.left = that;
+                token.right = m;
+                that = token;
+                m = identifier();
+                if (typeof m === 'string') {
+                    countMember(m);
+                }
+            }
+        }
+        return that;
+    }, 160, true);
+
+    infix('(', function (left, that) {
+        adjacent(prevtoken, token);
+        nospace();
+        var n = 0,
+            p = [];
+        if (left) {
+            if (left.type === '(identifier)') {
+                if (left.value.match(/^[A-Z]([A-Z0-9_$]*[a-z][A-Za-z0-9_$]*)?$/)) {
+                    if (left.value !== 'Number' && left.value !== 'String' &&
+                            left.value !== 'Boolean' &&
+                            left.value !== 'Date') {
+                        if (left.value === 'Math') {
+                            warning("Math is not a function.", left);
+                        } else if (option.newcap) {
+                            warning(
+"Missing 'new' prefix when invoking a constructor.", left);
+                        }
+                    }
+                }
+            } else if (left.id === '.') {
+                if (option.safe && left.left.value === 'Math' &&
+                        left.right === 'random') {
+                    warning("ADsafe violation.", left);
+                }
+            }
+        }
+        if (nexttoken.id !== ')') {
+            for (;;) {
+                p[p.length] = parse(10);
+                n += 1;
+                if (nexttoken.id !== ',') {
+                    break;
+                }
+                comma();
+            }
+        }
+        advance(')');
+        if (option.immed && left.id === 'function' && nexttoken.id !== ')') {
+            warning("Wrap the entire immediate function invocation in parens.",
+                that);
+        }
+        nospace(prevtoken, token);
+        if (typeof left === 'object') {
+            if (left.value === 'parseInt' && n === 1) {
+                warning("Missing radix parameter.", left);
+            }
+            if (!option.evil) {
+                if (left.value === 'eval' || left.value === 'Function' ||
+                        left.value === 'execScript') {
+                    warning("eval is evil.", left);
+                } else if (p[0] && p[0].id === '(string)' &&
+                       (left.value === 'setTimeout' ||
+                        left.value === 'setInterval')) {
+                    warning(
+    "Implied eval is evil. Pass a function instead of a string.", left);
+                }
+            }
+            if (!left.identifier && left.id !== '.' && left.id !== '[' &&
+                    left.id !== '(' && left.id !== '&&' && left.id !== '||' &&
+                    left.id !== '?') {
+                warning("Bad invocation.", left);
+            }
+        }
+        that.left = left;
+        return that;
+    }, 155, true).exps = true;
+
+    prefix('(', function () {
+        nospace();
+        var v = parse(0);
+        advance(')', this);
+        nospace(prevtoken, token);
+        if (option.immed && v.id === 'function') {
+            if (nexttoken.id === '(') {
+                warning(
+"Move the invocation into the parens that contain the function.", nexttoken);
+            } else {
+                warning(
+"Do not wrap function literals in parens unless they are to be immediately invoked.",
+                        this);
+            }
+        }
+        return v;
+    });
+
+    infix('[', function (left, that) {
+        nospace();
+        var e = parse(0), s;
+        if (e && e.type === '(string)') {
+            if (option.safe && banned[e.value] === true) {
+                warning("ADsafe restricted word '{a}'.", that, e.value);
+            } else if (!option.evil &&
+                    (e.value === 'eval' || e.value === 'execScript')) {
+                warning("eval is evil.", that);
+            } else if (option.safe &&
+                    (e.value.charAt(0) === '_' || e.value.charAt(0) === '-')) {
+                warning("ADsafe restricted subscript '{a}'.", that, e.value);
+            }
+            countMember(e.value);
+            if (!option.sub && ix.test(e.value)) {
+                s = syntax[e.value];
+                if (!s || !s.reserved) {
+                    warning("['{a}'] is better written in dot notation.",
+                            e, e.value);
+                }
+            }
+        } else if (!e || e.type !== '(number)' || e.value < 0) {
+            if (option.safe) {
+                warning('ADsafe subscripting.');
+            }
+        }
+        advance(']', that);
+        nospace(prevtoken, token);
+        that.left = left;
+        that.right = e;
+        return that;
+    }, 160, true);
+
+    prefix('[', function () {
+        var b = token.line !== nexttoken.line;
+        this.first = [];
+        if (b) {
+            indent += option.indent;
+            if (nexttoken.from === indent + option.indent) {
+                indent += option.indent;
+            }
+        }
+        while (nexttoken.id !== '(end)') {
+            while (nexttoken.id === ',') {
+                warning("Extra comma.");
+                advance(',');
+            }
+            if (nexttoken.id === ']') {
+                break;
+            }
+            if (b && token.line !== nexttoken.line) {
+                indentation();
+            }
+            this.first.push(parse(10));
+            if (nexttoken.id === ',') {
+                comma();
+                if (nexttoken.id === ']' && !option.es5) {
+                    warning("Extra comma.", token);
+                    break;
+                }
+            } else {
+                break;
+            }
+        }
+        if (b) {
+            indent -= option.indent;
+            indentation();
+        }
+        advance(']', this);
+        return this;
+    }, 160);
+
+
+    function property_name() {
+        var id = optionalidentifier(true);
+        if (!id) {
+            if (nexttoken.id === '(string)') {
+                id = nexttoken.value;
+                if (option.adsafe &&
+                        (id.charAt(0) === '_' ||
+                         id.charAt(id.length - 1) === '_')) {
+                    warning("Unexpected {a} in '{b}'.", token,
+                        "dangling '_'", id);
+                }
+                advance();
+            } else if (nexttoken.id === '(number)') {
+                id = nexttoken.value.toString();
+                advance();
+            }
+        }
+        return id;
+    }
+
+
+    function functionparams() {
+        var i, t = nexttoken, p = [];
+        advance('(');
+        nospace();
+        if (nexttoken.id === ')') {
+            advance(')');
+            nospace(prevtoken, token);
+            return;
+        }
+        for (;;) {
+            i = identifier();
+            p.push(i);
+            addlabel(i, 'parameter');
+            if (nexttoken.id === ',') {
+                comma();
+            } else {
+                advance(')', t);
+                nospace(prevtoken, token);
+                return p;
+            }
+        }
+    }
+
+
+    function doFunction(i) {
+        var f, s = scope;
+        scope = Object.create(s);
+        funct = {
+            '(name)'    : i || '"' + anonname + '"',
+            '(line)'    : nexttoken.line,
+            '(context)' : funct,
+            '(breakage)': 0,
+            '(loopage)' : 0,
+            '(scope)'   : scope
+        };
+        f = funct;
+        token.funct = funct;
+        functions.push(funct);
+        if (i) {
+            addlabel(i, 'function');
+        }
+        funct['(params)'] = functionparams();
+
+        block(false);
+        scope = s;
+        funct['(last)'] = token.line;
+        funct = funct['(context)'];
+        return f;
+    }
+
+
+    (function (x) {
+        x.nud = function () {
+            var b, f, i, j, p, seen = {}, t;
+            b = token.line !== nexttoken.line;
+            if (b) {
+                indent += option.indent;
+                if (nexttoken.from === indent + option.indent) {
+                    indent += option.indent;
+                }
+            }
+            for (;;) {
+                if (nexttoken.id === '}') {
+                    break;
+                }
+                if (b) {
+                    indentation();
+                }
+                if (nexttoken.value === 'get' && peek().id !== ':') {
+                    advance('get');
+                    if (!option.es5) {
+                        error("get/set are ES5 features.");
+                    }
+                    i = property_name();
+                    if (!i) {
+                        error("Missing property name.");
+                    }
+                    t = nexttoken;
+                    adjacent(token, nexttoken);
+                    f = doFunction(i);
+                    if (funct['(loopage)']) {
+                        warning("Don't make functions within a loop.", t);
+                    }
+                    p = f['(params)'];
+                    if (p) {
+                        warning("Unexpected parameter '{a}' in get {b} function.", t, p[0], i);
+                    }
+                    adjacent(token, nexttoken);
+                    advance(',');
+                    indentation();
+                    advance('set');
+                    j = property_name();
+                    if (i !== j) {
+                        error("Expected {a} and instead saw {b}.", token, i, j);
+                    }
+                    t = nexttoken;
+                    adjacent(token, nexttoken);
+                    f = doFunction(i);
+                    p = f['(params)'];
+                    if (!p || p.length !== 1 || p[0] !== 'value') {
+                        warning("Expected (value) in set {a} function.", t, i);
+                    }
+                } else {
+                    i = property_name();
+                    if (typeof i !== 'string') {
+                        break;
+                    }
+                    advance(':');
+                    nonadjacent(token, nexttoken);
+                    parse(10);
+                }
+                if (seen[i] === true) {
+                    warning("Duplicate member '{a}'.", nexttoken, i);
+                }
+                seen[i] = true;
+                countMember(i);
+                if (nexttoken.id === ',') {
+                    comma();
+                    if (nexttoken.id === ',') {
+                        warning("Extra comma.", token);
+                    } else if (nexttoken.id === '}' && !option.es5) {
+                        warning("Extra comma.", token);
+                    }
+                } else {
+                    break;
+                }
+            }
+            if (b) {
+                indent -= option.indent;
+                indentation();
+            }
+            advance('}', this);
+            return this;
+        };
+        x.fud = function () {
+            error("Expected to see a statement and instead saw a block.", token);
+        };
+    }(delim('{')));
+
+
+    function varstatement(prefix) {
+
+// JavaScript does not have block scope. It only has function scope. So,
+// declaring a variable in a block can have unexpected consequences.
+
+        var id, name, value;
+
+        if (funct['(onevar)'] && option.onevar) {
+            warning("Too many var statements.");
+        } else if (!funct['(global)']) {
+            funct['(onevar)'] = true;
+        }
+        this.first = [];
+        for (;;) {
+            nonadjacent(token, nexttoken);
+            id = identifier();
+            if (funct['(global)'] && predefined[id] === false) {
+                warning("Redefinition of '{a}'.", token, id);
+            }
+            addlabel(id, 'unused');
+            if (prefix) {
+                break;
+            }
+            name = token;
+            this.first.push(token);
+            if (nexttoken.id === '=') {
+                nonadjacent(token, nexttoken);
+                advance('=');
+                nonadjacent(token, nexttoken);
+                if (nexttoken.id === 'undefined') {
+                    warning("It is not necessary to initialize '{a}' to 'undefined'.", token, id);
+                }
+                if (peek(0).id === '=' && nexttoken.identifier) {
+                    error("Variable {a} was not declared correctly.",
+                            nexttoken, nexttoken.value);
+                }
+                value = parse(0);
+                name.first = value;
+            }
+            if (nexttoken.id !== ',') {
+                break;
+            }
+            comma();
+        }
+        return this;
+    }
+
+
+    stmt('var', varstatement).exps = true;
+
+
+    blockstmt('function', function () {
+        if (inblock) {
+            warning(
+"Function statements cannot be placed in blocks. Use a function expression or move the statement to the top of the outer function.", token);
+
+        }
+        var i = identifier();
+        adjacent(token, nexttoken);
+        addlabel(i, 'unused');
+        doFunction(i);
+        if (nexttoken.id === '(' && nexttoken.line === token.line) {
+            error(
+"Function statements are not invocable. Wrap the whole function invocation in parens.");
+        }
+        return this;
+    });
+
+    prefix('function', function () {
+        var i = optionalidentifier();
+        if (i) {
+            adjacent(token, nexttoken);
+        } else {
+            nonadjacent(token, nexttoken);
+        }
+        doFunction(i);
+        if (funct['(loopage)']) {
+            warning("Don't make functions within a loop.");
+        }
+        return this;
+    });
+
+    blockstmt('if', function () {
+        var t = nexttoken;
+        advance('(');
+        nonadjacent(this, t);
+        nospace();
+        parse(20);
+        if (nexttoken.id === '=') {
+            warning("Expected a conditional expression and instead saw an assignment.");
+            advance('=');
+            parse(20);
+        }
+        advance(')', t);
+        nospace(prevtoken, token);
+        block(true);
+        if (nexttoken.id === 'else') {
+            nonadjacent(token, nexttoken);
+            advance('else');
+            if (nexttoken.id === 'if' || nexttoken.id === 'switch') {
+                statement(true);
+            } else {
+                block(true);
+            }
+        }
+        return this;
+    });
+
+    blockstmt('try', function () {
+        var b, e, s;
+        if (option.adsafe) {
+            warning("ADsafe try violation.", this);
+        }
+        block(false);
+        if (nexttoken.id === 'catch') {
+            advance('catch');
+            nonadjacent(token, nexttoken);
+            advance('(');
+            s = scope;
+            scope = Object.create(s);
+            e = nexttoken.value;
+            if (nexttoken.type !== '(identifier)') {
+                warning("Expected an identifier and instead saw '{a}'.",
+                    nexttoken, e);
+            } else {
+                addlabel(e, 'exception');
+            }
+            advance();
+            advance(')');
+            block(false);
+            b = true;
+            scope = s;
+        }
+        if (nexttoken.id === 'finally') {
+            advance('finally');
+            block(false);
+            return;
+        } else if (!b) {
+            error("Expected '{a}' and instead saw '{b}'.",
+                    nexttoken, 'catch', nexttoken.value);
+        }
+        return this;
+    });
+
+    blockstmt('while', function () {
+        var t = nexttoken;
+        funct['(breakage)'] += 1;
+        funct['(loopage)'] += 1;
+        advance('(');
+        nonadjacent(this, t);
+        nospace();
+        parse(20);
+        if (nexttoken.id === '=') {
+            warning("Expected a conditional expression and instead saw an assignment.");
+            advance('=');
+            parse(20);
+        }
+        advance(')', t);
+        nospace(prevtoken, token);
+        block(true);
+        funct['(breakage)'] -= 1;
+        funct['(loopage)'] -= 1;
+        return this;
+    }).labelled = true;
+
+    reserve('with');
+
+    blockstmt('switch', function () {
+        var t = nexttoken,
+            g = false;
+        funct['(breakage)'] += 1;
+        advance('(');
+        nonadjacent(this, t);
+        nospace();
+        this.condition = parse(20);
+        advance(')', t);
+        nospace(prevtoken, token);
+        nonadjacent(token, nexttoken);
+        t = nexttoken;
+        advance('{');
+        nonadjacent(token, nexttoken);
+        indent += option.indent;
+        this.cases = [];
+        for (;;) {
+            switch (nexttoken.id) {
+            case 'case':
+                switch (funct['(verb)']) {
+                case 'break':
+                case 'case':
+                case 'continue':
+                case 'return':
+                case 'switch':
+                case 'throw':
+                    break;
+                default:
+                    warning(
+                        "Expected a 'break' statement before 'case'.",
+                        token);
+                }
+                indentation(-option.indent);
+                advance('case');
+                this.cases.push(parse(20));
+                g = true;
+                advance(':');
+                funct['(verb)'] = 'case';
+                break;
+            case 'default':
+                switch (funct['(verb)']) {
+                case 'break':
+                case 'continue':
+                case 'return':
+                case 'throw':
+                    break;
+                default:
+                    warning(
+                        "Expected a 'break' statement before 'default'.",
+                        token);
+                }
+                indentation(-option.indent);
+                advance('default');
+                g = true;
+                advance(':');
+                break;
+            case '}':
+                indent -= option.indent;
+                indentation();
+                advance('}', t);
+                if (this.cases.length === 1 || this.condition.id === 'true' ||
+                        this.condition.id === 'false') {
+                    warning("This 'switch' should be an 'if'.", this);
+                }
+                funct['(breakage)'] -= 1;
+                funct['(verb)'] = undefined;
+                return;
+            case '(end)':
+                error("Missing '{a}'.", nexttoken, '}');
+                return;
+            default:
+                if (g) {
+                    switch (token.id) {
+                    case ',':
+                        error("Each value should have its own case label.");
+                        return;
+                    case ':':
+                        statements();
+                        break;
+                    default:
+                        error("Missing ':' on a case clause.", token);
+                    }
+                } else {
+                    error("Expected '{a}' and instead saw '{b}'.",
+                        nexttoken, 'case', nexttoken.value);
+                }
+            }
+        }
+    }).labelled = true;
+
+    stmt('debugger', function () {
+        if (!option.debug) {
+            warning("All 'debugger' statements should be removed.");
+        }
+        return this;
+    }).exps = true;
+
+    (function () {
+        var x = stmt('do', function () {
+            funct['(breakage)'] += 1;
+            funct['(loopage)'] += 1;
+            this.first = block(true);
+            advance('while');
+            var t = nexttoken;
+            nonadjacent(token, t);
+            advance('(');
+            nospace();
+            parse(20);
+            if (nexttoken.id === '=') {
+                warning("Expected a conditional expression and instead saw an assignment.");
+                advance('=');
+                parse(20);
+            }
+            advance(')', t);
+            nospace(prevtoken, token);
+            funct['(breakage)'] -= 1;
+            funct['(loopage)'] -= 1;
+            return this;
+        });
+        x.labelled = true;
+        x.exps = true;
+    }());
+
+    blockstmt('for', function () {
+        var f = option.forin, s, t = nexttoken;
+        funct['(breakage)'] += 1;
+        funct['(loopage)'] += 1;
+        advance('(');
+        nonadjacent(this, t);
+        nospace();
+        if (peek(nexttoken.id === 'var' ? 1 : 0).id === 'in') {
+            if (nexttoken.id === 'var') {
+                advance('var');
+                varstatement(true);
+            } else {
+                switch (funct[nexttoken.value]) {
+                case 'unused':
+                    funct[nexttoken.value] = 'var';
+                    break;
+                case 'var':
+                    break;
+                default:
+                    warning("Bad for in variable '{a}'.",
+                            nexttoken, nexttoken.value);
+                }
+                advance();
+            }
+            advance('in');
+            parse(20);
+            advance(')', t);
+            s = block(true);
+            if (!f && (s.length > 1 || typeof s[0] !== 'object' ||
+                    s[0].value !== 'if')) {
+                warning("The body of a for in should be wrapped in an if statement to filter unwanted properties from the prototype.", this);
+            }
+            funct['(breakage)'] -= 1;
+            funct['(loopage)'] -= 1;
+            return this;
+        } else {
+            if (nexttoken.id !== ';') {
+                if (nexttoken.id === 'var') {
+                    advance('var');
+                    varstatement();
+                } else {
+                    for (;;) {
+                        parse(0, 'for');
+                        if (nexttoken.id !== ',') {
+                            break;
+                        }
+                        comma();
+                    }
+                }
+            }
+            nolinebreak(token);
+            advance(';');
+            if (nexttoken.id !== ';') {
+                parse(20);
+                if (nexttoken.id === '=') {
+                    warning("Expected a conditional expression and instead saw an assignment.");
+                    advance('=');
+                    parse(20);
+                }
+            }
+            nolinebreak(token);
+            advance(';');
+            if (nexttoken.id === ';') {
+                error("Expected '{a}' and instead saw '{b}'.",
+                        nexttoken, ')', ';');
+            }
+            if (nexttoken.id !== ')') {
+                for (;;) {
+                    parse(0, 'for');
+                    if (nexttoken.id !== ',') {
+                        break;
+                    }
+                    comma();
+                }
+            }
+            advance(')', t);
+            nospace(prevtoken, token);
+            block(true);
+            funct['(breakage)'] -= 1;
+            funct['(loopage)'] -= 1;
+            return this;
+        }
+    }).labelled = true;
+
+
+    stmt('break', function () {
+        var v = nexttoken.value;
+        if (funct['(breakage)'] === 0) {
+            warning("Unexpected '{a}'.", nexttoken, this.value);
+        }
+        nolinebreak(this);
+        if (nexttoken.id !== ';') {
+            if (token.line === nexttoken.line) {
+                if (funct[v] !== 'label') {
+                    warning("'{a}' is not a statement label.", nexttoken, v);
+                } else if (scope[v] !== funct) {
+                    warning("'{a}' is out of scope.", nexttoken, v);
+                }
+                this.first = nexttoken;
+                advance();
+            }
+        }
+        reachable('break');
+        return this;
+    }).exps = true;
+
+
+    stmt('continue', function () {
+        var v = nexttoken.value;
+        if (funct['(breakage)'] === 0) {
+            warning("Unexpected '{a}'.", nexttoken, this.value);
+        }
+        nolinebreak(this);
+        if (nexttoken.id !== ';') {
+            if (token.line === nexttoken.line) {
+                if (funct[v] !== 'label') {
+                    warning("'{a}' is not a statement label.", nexttoken, v);
+                } else if (scope[v] !== funct) {
+                    warning("'{a}' is out of scope.", nexttoken, v);
+                }
+                this.first = nexttoken;
+                advance();
+            }
+        } else if (!funct['(loopage)']) {
+            warning("Unexpected '{a}'.", nexttoken, this.value);
+        }
+        reachable('continue');
+        return this;
+    }).exps = true;
+
+
+    stmt('return', function () {
+        nolinebreak(this);
+        if (nexttoken.id === '(regexp)') {
+            warning("Wrap the /regexp/ literal in parens to disambiguate the slash operator.");
+        }
+        if (nexttoken.id !== ';' && !nexttoken.reach) {
+            nonadjacent(token, nexttoken);
+            this.first = parse(20);
+        }
+        reachable('return');
+        return this;
+    }).exps = true;
+
+
+    stmt('throw', function () {
+        nolinebreak(this);
+        nonadjacent(token, nexttoken);
+        this.first = parse(20);
+        reachable('throw');
+        return this;
+    }).exps = true;
+
+    reserve('void');
+
+//  Superfluous reserved words
+
+    reserve('class');
+    reserve('const');
+    reserve('enum');
+    reserve('export');
+    reserve('extends');
+    reserve('import');
+    reserve('super');
+
+    reserve('let');
+    reserve('yield');
+    reserve('implements');
+    reserve('interface');
+    reserve('package');
+    reserve('private');
+    reserve('protected');
+    reserve('public');
+    reserve('static');
+
+
+// Parse JSON
+
+    function jsonValue() {
+
+        function jsonObject() {
+            var o = {}, t = nexttoken;
+            advance('{');
+            if (nexttoken.id !== '}') {
+                for (;;) {
+                    if (nexttoken.id === '(end)') {
+                        error("Missing '}' to match '{' from line {a}.",
+                                nexttoken, t.line);
+                    } else if (nexttoken.id === '}') {
+                        warning("Unexpected comma.", token);
+                        break;
+                    } else if (nexttoken.id === ',') {
+                        error("Unexpected comma.", nexttoken);
+                    } else if (nexttoken.id !== '(string)') {
+                        warning("Expected a string and instead saw {a}.",
+                                nexttoken, nexttoken.value);
+                    }
+                    if (o[nexttoken.value] === true) {
+                        warning("Duplicate key '{a}'.",
+                                nexttoken, nexttoken.value);
+                    } else if (nexttoken.value === '__proto__') {
+                        warning("Stupid key '{a}'.",
+                                nexttoken, nexttoken.value);
+                    } else {
+                        o[nexttoken.value] = true;
+                    }
+                    advance();
+                    advance(':');
+                    jsonValue();
+                    if (nexttoken.id !== ',') {
+                        break;
+                    }
+                    advance(',');
+                }
+            }
+            advance('}');
+        }
+
+        function jsonArray() {
+            var t = nexttoken;
+            advance('[');
+            if (nexttoken.id !== ']') {
+                for (;;) {
+                    if (nexttoken.id === '(end)') {
+                        error("Missing ']' to match '[' from line {a}.",
+                                nexttoken, t.line);
+                    } else if (nexttoken.id === ']') {
+                        warning("Unexpected comma.", token);
+                        break;
+                    } else if (nexttoken.id === ',') {
+                        error("Unexpected comma.", nexttoken);
+                    }
+                    jsonValue();
+                    if (nexttoken.id !== ',') {
+                        break;
+                    }
+                    advance(',');
+                }
+            }
+            advance(']');
+        }
+
+        switch (nexttoken.id) {
+        case '{':
+            jsonObject();
+            break;
+        case '[':
+            jsonArray();
+            break;
+        case 'true':
+        case 'false':
+        case 'null':
+        case '(number)':
+        case '(string)':
+            advance();
+            break;
+        case '-':
+            advance('-');
+            if (token.character !== nexttoken.from) {
+                warning("Unexpected space after '-'.", token);
+            }
+            adjacent(token, nexttoken);
+            advance('(number)');
+            break;
+        default:
+            error("Expected a JSON value.", nexttoken);
+        }
+    }
+
+
+// The actual JSLINT function itself.
+
+    var itself = function (s, o) {
+        var a, i;
+        JSLINT.errors = [];
+        predefined = Object.create(standard);
+        if (o) {
+            a = o.predef;
+            if (a instanceof Array) {
+                for (i = 0; i < a.length; i += 1) {
+                    predefined[a[i]] = true;
+                }
+            }
+            if (o.adsafe) {
+                o.safe = true;
+            }
+            if (o.safe) {
+                o.browser =
+                o.css     =
+                o.debug   =
+                o.devel   =
+                o.evil    =
+                o.forin   =
+                o.on      =
+                o.rhino   =
+                o.windows =
+                o.sub     =
+                o.widget  = false;
+
+                o.eqeqeq  =
+                o.nomen   =
+                o.safe    =
+                o.strict  =
+                o.undef   = true;
+
+                predefined.Date =
+                predefined['eval'] =
+                predefined.Function =
+                predefined.Object = null;
+
+                predefined.ADSAFE =
+                predefined.lib = false;
+            }
+            option = o;
+        } else {
+            option = {};
+        }
+        option.indent = option.indent || 4;
+        option.maxerr = option.maxerr || 50;
+        adsafe_id = '';
+        adsafe_may = false;
+        adsafe_went = false;
+        approved = {};
+        if (option.approved) {
+            for (i = 0; i < option.approved.length; i += 1) {
+                approved[option.approved[i]] = option.approved[i];
+            }
+        } else {
+            approved.test = 'test';
+        }
+        tab = '';
+        for (i = 0; i < option.indent; i += 1) {
+            tab += ' ';
+        }
+        indent = 1;
+        global = Object.create(predefined);
+        scope = global;
+        funct = {
+            '(global)': true,
+            '(name)': '(global)',
+            '(scope)': scope,
+            '(breakage)': 0,
+            '(loopage)': 0
+        };
+        functions = [funct];
+        ids = {};
+        urls = [];
+        src = false;
+        xmode = false;
+        stack = null;
+        member = {};
+        membersOnly = null;
+        implied = {};
+        inblock = false;
+        lookahead = [];
+        jsonmode = false;
+        warnings = 0;
+        lex.init(s);
+        prereg = true;
+        strict_mode = false;
+
+        prevtoken = token = nexttoken = syntax['(begin)'];
+        assume();
+
+        try {
+            advance();
+            if (nexttoken.value.charAt(0) === '<') {
+                html();
+                if (option.adsafe && !adsafe_went) {
+                    warning("ADsafe violation: Missing ADSAFE.go.", this);
+                }
+            } else {
+                switch (nexttoken.id) {
+                case '{':
+                case '[':
+                    option.laxbreak = true;
+                    jsonmode = true;
+                    jsonValue();
+                    break;
+                case '@':
+                case '*':
+                case '#':
+                case '.':
+                case ':':
+                    xmode = 'style';
+                    advance();
+                    if (token.id !== '@' || !nexttoken.identifier ||
+                            nexttoken.value !== 'charset' || token.line !== 1 ||
+                            token.from !== 1) {
+                        error('A css file should begin with @charset "UTF-8";');
+                    }
+                    advance();
+                    if (nexttoken.type !== '(string)' &&
+                            nexttoken.value !== 'UTF-8') {
+                        error('A css file should begin with @charset "UTF-8";');
+                    }
+                    advance();
+                    advance(';');
+                    styles();
+                    break;
+
+                default:
+                    if (option.adsafe && option.fragment) {
+                        error("Expected '{a}' and instead saw '{b}'.",
+                            nexttoken, '<div>', nexttoken.value);
+                    }
+                    statements('lib');
+                }
+            }
+            advance('(end)');
+        } catch (e) {
+            if (e) {
+                JSLINT.errors.push({
+                    reason    : e.message,
+                    line      : e.line || nexttoken.line,
+                    character : e.character || nexttoken.from
+                }, null);
+            }
+        }
+        return JSLINT.errors.length === 0;
+    };
+
+    function is_array(o) {
+        return Object.prototype.toString.apply(o) === '[object Array]';
+    }
+
+    function to_array(o) {
+        var a = [], k;
+        for (k in o) {
+            if (is_own(o, k)) {
+                a.push(k);
+            }
+        }
+        return a;
+    }
+
+
+// Data summary.
+
+    itself.data = function () {
+
+        var data = {functions: []}, fu, globals, implieds = [], f, i, j,
+            members = [], n, unused = [], v;
+        if (itself.errors.length) {
+            data.errors = itself.errors;
+        }
+
+        if (jsonmode) {
+            data.json = true;
+        }
+
+        for (n in implied) {
+            if (is_own(implied, n)) {
+                implieds.push({
+                    name: n,
+                    line: implied[n]
+                });
+            }
+        }
+        if (implieds.length > 0) {
+            data.implieds = implieds;
+        }
+
+        if (urls.length > 0) {
+            data.urls = urls;
+        }
+
+        globals = to_array(scope);
+        if (globals.length > 0) {
+            data.globals = globals;
+        }
+
+        for (i = 1; i < functions.length; i += 1) {
+            f = functions[i];
+            fu = {};
+            for (j = 0; j < functionicity.length; j += 1) {
+                fu[functionicity[j]] = [];
+            }
+            for (n in f) {
+                if (is_own(f, n) && n.charAt(0) !== '(') {
+                    v = f[n];
+                    if (is_array(fu[v])) {
+                        fu[v].push(n);
+                        if (v === 'unused') {
+                            unused.push({
+                                name: n,
+                                line: f['(line)'],
+                                'function': f['(name)']
+                            });
+                        }
+                    }
+                }
+            }
+            for (j = 0; j < functionicity.length; j += 1) {
+                if (fu[functionicity[j]].length === 0) {
+                    delete fu[functionicity[j]];
+                }
+            }
+            fu.name = f['(name)'];
+            fu.param = f['(params)'];
+            fu.line = f['(line)'];
+            fu.last = f['(last)'];
+            data.functions.push(fu);
+        }
+
+        if (unused.length > 0) {
+            data.unused = unused;
+        }
+
+        members = [];
+        for (n in member) {
+            if (typeof member[n] === 'number') {
+                data.member = member;
+                break;
+            }
+        }
+
+        return data;
+    };
+
+    itself.report = function (option) {
+        var data = itself.data();
+
+        var a = [], c, e, err, f, i, k, l, m = '', n, o = [], s;
+
+        function detail(h, array) {
+            var b, i, singularity;
+            if (array) {
+                o.push('<div><i>' + h + '</i> ');
+                array = array.sort();
+                for (i = 0; i < array.length; i += 1) {
+                    if (array[i] !== singularity) {
+                        singularity = array[i];
+                        o.push((b ? ', ' : '') + singularity);
+                        b = true;
+                    }
+                }
+                o.push('</div>');
+            }
+        }
+
+
+        if (data.errors || data.implieds || data.unused) {
+            err = true;
+            o.push('<div id=errors><i>Error:</i>');
+            if (data.errors) {
+                for (i = 0; i < data.errors.length; i += 1) {
+                    c = data.errors[i];
+                    if (c) {
+                        e = c.evidence || '';
+                        o.push('<p>Problem' + (isFinite(c.line) ? ' at line ' +
+                                c.line + ' character ' + c.character : '') +
+                                ': ' + c.reason.entityify() +
+                                '</p><p class=evidence>' +
+                                (e && (e.length > 80 ? e.slice(0, 77) + '...' :
+                                e).entityify()) + '</p>');
+                    }
+                }
+            }
+
+            if (data.implieds) {
+                s = [];
+                for (i = 0; i < data.implieds.length; i += 1) {
+                    s[i] = '<code>' + data.implieds[i].name + '</code>&nbsp;<i>' +
+                        data.implieds[i].line + '</i>';
+                }
+                o.push('<p><i>Implied global:</i> ' + s.join(', ') + '</p>');
+            }
+
+            if (data.unused) {
+                s = [];
+                for (i = 0; i < data.unused.length; i += 1) {
+                    s[i] = '<code><u>' + data.unused[i].name + '</u></code>&nbsp;<i>' +
+                        data.unused[i].line + '</i> <code>' +
+                        data.unused[i]['function'] + '</code>';
+                }
+                o.push('<p><i>Unused variable:</i> ' + s.join(', ') + '</p>');
+            }
+            if (data.json) {
+                o.push('<p>JSON: bad.</p>');
+            }
+            o.push('</div>');
+        }
+
+        if (!option) {
+
+            o.push('<br><div id=functions>');
+
+            if (data.urls) {
+                detail("URLs<br>", data.urls, '<br>');
+            }
+
+            if (xmode === 'style') {
+                o.push('<p>CSS.</p>');
+            } else if (data.json && !err) {
+                o.push('<p>JSON: good.</p>');
+            } else if (data.globals) {
+                o.push('<div><i>Global</i> ' +
+                        data.globals.sort().join(', ') + '</div>');
+            } else {
+                o.push('<div><i>No new global variables introduced.</i></div>');
+            }
+
+            for (i = 0; i < data.functions.length; i += 1) {
+                f = data.functions[i];
+
+                o.push('<br><div class=function><i>' + f.line + '-' +
+                        f.last + '</i> ' + (f.name || '') + '(' +
+                        (f.param ? f.param.join(', ') : '') + ')</div>');
+                detail('<big><b>Unused</b></big>', f.unused);
+                detail('Closure', f.closure);
+                detail('Variable', f['var']);
+                detail('Exception', f.exception);
+                detail('Outer', f.outer);
+                detail('Global', f.global);
+                detail('Label', f.label);
+            }
+
+            if (data.member) {
+                a = to_array(data.member);
+                if (a.length) {
+                    a = a.sort();
+                    m = '<br><pre id=members>/*members ';
+                    l = 10;
+                    for (i = 0; i < a.length; i += 1) {
+                        k = a[i];
+                        n = k.name();
+                        if (l + n.length > 72) {
+                            o.push(m + '<br>');
+                            m = '    ';
+                            l = 1;
+                        }
+                        l += n.length + 2;
+                        if (data.member[k] === 1) {
+                            n = '<i>' + n + '</i>';
+                        }
+                        if (i < a.length - 1) {
+                            n += ', ';
+                        }
+                        m += n;
+                    }
+                    o.push(m + '<br>*/</pre>');
+                }
+                o.push('</div>');
+            }
+        }
+        return o.join('');
+    };
+    itself.jslint = itself;
+
+    itself.edition = '2010-08-05';
+
+    return itself;
+
+}());
+// rhino.js
+// 2009-09-11
+/*
+Copyright (c) 2002 Douglas Crockford  (www.JSLint.com) Rhino Edition
+*/
+
+// This is the Rhino companion to fulljslint.js.
+
+/*global JSLINT */
+/*jslint rhino: true, strict: false */
+
+(function (a) {
+    var e, i, input;
+    if (!a[0]) {
+        print("Usage: jslint.js file.js");
+        quit(1);
+    }
+    input = readFile(a[0]);
+    if (!input) {
+        print("jslint: Couldn't open file '" + a[0] + "'.");
+        quit(1);
+    }
+    if (!JSLINT(input, {bitwise: true, eqeqeq: true, immed: true,
+            newcap: true, nomen: true, onevar: true, plusplus: true,
+            regexp: true, rhino: true, undef: true, white: true})) {
+        for (i = 0; i < JSLINT.errors.length; i += 1) {
+            e = JSLINT.errors[i];
+            if (e) {
+                print('Lint at line ' + e.line + ' character ' +
+                        e.character + ': ' + e.reason);
+                print((e.evidence || '').
+                        replace(/^\s*(\S*(\s+\S+)*)\s*$/, "$1"));
+                print('');
+            }
+        }
+        quit(2);
+    } else {
+        print("jslint: No problems found in " + a[0]);
+        quit();
+    }
+}(arguments));