--- /dev/null
+/*!
+ * JSHint, by JSHint Community.
+ *
+ * This file (and this file only) is licensed under the same slightly modified
+ * MIT license that JSLint is. It stops evil-doers everywhere.
+ *
+ * JSHint is a derivative work of JSLint:
+ *
+ * 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.
+ *
+ */
+
+/*
+ JSHINT is a global function. It takes two parameters.
+
+ var myResult = JSHINT(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 a JSON text.
+
+ The second parameter is an optional object of options which control the
+ operation of JSHINT. Most of the options are booleans: They are all
+ optional and have a default value of false. One of the options, predef,
+ can be an array of names, which will be used to declare global variables,
+ or an object whose keys are used as global names, with a boolean value
+ that determines if they are assignable.
+
+ If it checks out, JSHINT returns true. Otherwise, it returns false.
+
+ If false, you can inspect JSHINT.errors to find out the problems.
+ JSHINT.errors is an array of objects containing these members:
+
+ {
+ line : The line (relative to 1) at which the lint was found
+ character : The character (relative to 1) 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
+ JSHINT.errors array.
+
+ You can request a data structure which contains JSHint's results.
+
+ var myData = JSHINT.data();
+
+ It returns a structure with this form:
+
+ {
+ errors: [
+ {
+ line: NUMBER,
+ character: NUMBER,
+ reason: STRING,
+ evidence: STRING
+ }
+ ],
+ functions: [
+ name: STRING,
+ line: NUMBER,
+ character: NUMBER,
+ last: NUMBER,
+ lastcharacter: NUMBER,
+ param: [
+ STRING
+ ],
+ closure: [
+ STRING
+ ],
+ var: [
+ STRING
+ ],
+ exception: [
+ STRING
+ ],
+ outer: [
+ STRING
+ ],
+ unused: [
+ STRING
+ ],
+ global: [
+ STRING
+ ],
+ label: [
+ STRING
+ ]
+ ],
+ globals: [
+ STRING
+ ],
+ member: {
+ STRING: NUMBER
+ },
+ unused: [
+ {
+ name: STRING,
+ line: NUMBER
+ }
+ ],
+ implieds: [
+ {
+ name: STRING,
+ line: NUMBER
+ }
+ ],
+ urls: [
+ STRING
+ ],
+ json: BOOLEAN
+ }
+
+ Empty arrays will not be included.
+
+*/
+
+/*jshint
+ evil: true, nomen: false, onevar: false, regexp: false, strict: true, boss: true,
+ undef: true, maxlen: 100, indent: 4, quotmark: double, unused: true
+*/
+
+/*members "\b", "\t", "\n", "\f", "\r", "!=", "!==", "\"", "%", "(begin)",
+ "(breakage)", "(character)", "(context)", "(error)", "(explicitNewcap)", "(global)",
+ "(identifier)", "(last)", "(lastcharacter)", "(line)", "(loopage)", "(metrics)",
+ "(name)", "(onevar)", "(params)", "(scope)", "(statement)", "(verb)", "(tokens)", "(catch)",
+ "*", "+", "++", "-", "--", "\/", "<", "<=", "==",
+ "===", ">", ">=", $, $$, $A, $F, $H, $R, $break, $continue, $w, Abstract, Ajax,
+ __filename, __dirname, ActiveXObject, Array, ArrayBuffer, ArrayBufferView, Audio,
+ Autocompleter, Asset, Boolean, Builder, Buffer, Browser, Blob, COM, CScript, Canvas,
+ CustomAnimation, Class, Control, ComplexityCount, Chain, Color, Cookie, Core, DataView, Date,
+ Debug, Draggable, Draggables, Droppables, Document, DomReady, DOMEvent, DOMReady, DOMParser,
+ Drag, E, Enumerator, Enumerable, Element, Elements, Error, Effect, EvalError, Event,
+ Events, FadeAnimation, Field, Flash, Float32Array, Float64Array, Form,
+ FormField, Frame, FormData, Function, Fx, GetObject, Group, Hash, HotKey,
+ HTMLElement, HTMLAnchorElement, HTMLBaseElement, HTMLBlockquoteElement,
+ HTMLBodyElement, HTMLBRElement, HTMLButtonElement, HTMLCanvasElement, HTMLDirectoryElement,
+ HTMLDivElement, HTMLDListElement, HTMLFieldSetElement,
+ HTMLFontElement, HTMLFormElement, HTMLFrameElement, HTMLFrameSetElement,
+ HTMLHeadElement, HTMLHeadingElement, HTMLHRElement, HTMLHtmlElement,
+ HTMLIFrameElement, HTMLImageElement, HTMLInputElement, HTMLIsIndexElement,
+ HTMLLabelElement, HTMLLayerElement, HTMLLegendElement, HTMLLIElement,
+ HTMLLinkElement, HTMLMapElement, HTMLMenuElement, HTMLMetaElement,
+ HTMLModElement, HTMLObjectElement, HTMLOListElement, HTMLOptGroupElement,
+ HTMLOptionElement, HTMLParagraphElement, HTMLParamElement, HTMLPreElement,
+ HTMLQuoteElement, HTMLScriptElement, HTMLSelectElement, HTMLStyleElement,
+ HtmlTable, HTMLTableCaptionElement, HTMLTableCellElement, HTMLTableColElement,
+ HTMLTableElement, HTMLTableRowElement, HTMLTableSectionElement,
+ HTMLTextAreaElement, HTMLTitleElement, HTMLUListElement, HTMLVideoElement,
+ Iframe, IframeShim, Image, importScripts, Int16Array, Int32Array, Int8Array,
+ Insertion, InputValidator, JSON, Keyboard, Locale, LN10, LN2, LOG10E, LOG2E,
+ MAX_VALUE, MIN_VALUE, Map, Mask, Math, MenuItem, MessageChannel, MessageEvent, MessagePort,
+ MoveAnimation, MooTools, MutationObserver, NaN, Native, NEGATIVE_INFINITY, Node, NodeFilter,
+ Number, Object, ObjectRange,
+ Option, Options, OverText, PI, POSITIVE_INFINITY, PeriodicalExecuter, Point, Position, Prototype,
+ RangeError, Rectangle, ReferenceError, RegExp, ResizeAnimation, Request, RotateAnimation, Set,
+ SQRT1_2, SQRT2, ScrollBar, ScriptEngine, ScriptEngineBuildVersion,
+ ScriptEngineMajorVersion, ScriptEngineMinorVersion, Scriptaculous, Scroller,
+ Slick, Slider, Selector, SharedWorker, String, Style, SyntaxError, Sortable, Sortables,
+ SortableObserver, Sound, Spinner, System, Swiff, Text, TextArea, Template,
+ Timer, Tips, Type, TypeError, Toggle, Try, "use strict", unescape, URI, URIError, URL,
+ VBArray, WeakMap, WSH, WScript, XDomainRequest, Web, Window, XMLDOM, XMLHttpRequest, XMLSerializer,
+ XPathEvaluator, XPathException, XPathExpression, XPathNamespace, XPathNSResolver, XPathResult,
+ "\\", a, abs, addEventListener, address, alert, apply, applicationCache, arguments, arity,
+ asi, atob, b, basic, basicToken, bitwise, blacklist, block, blur, boolOptions, boss,
+ browser, btoa, c, call, callee, caller, camelcase, cases, charAt, charCodeAt, character,
+ clearInterval, clearTimeout, close, closed, closure, comment, complexityCount, condition,
+ confirm, console, constructor, content, couch, create, css, curly, d, data, datalist, dd, debug,
+ decodeURI, decodeURIComponent, defaultStatus, defineClass, deserialize, devel, document,
+ dojo, dijit, dojox, define, else, emit, encodeURI, encodeURIComponent, elem,
+ eqeq, eqeqeq, eqnull, errors, es5, escape, esnext, eval, event, evidence, evil,
+ ex, exception, exec, exps, expr, exports, FileReader, first, floor, focus, forEach,
+ forin, fragment, frames, from, fromCharCode, fud, funcscope, funct, function, functions,
+ g, gc, getComputedStyle, getRow, getter, getterToken, GLOBAL, global, globals, globalstrict,
+ hasOwnProperty, help, history, i, id, identifier, immed, implieds, importPackage, include,
+ indent, indexOf, init, ins, internals, instanceOf, isAlpha, isApplicationRunning, isArray,
+ isDigit, isFinite, isNaN, iterator, java, join, jshint,
+ JSHINT, json, jquery, jQuery, keys, label, labelled, last, lastcharacter, lastsemic, laxbreak,
+ laxcomma, latedef, lbp, led, left, length, line, load, loadClass, localStorage, location,
+ log, loopfunc, m, match, max, maxcomplexity, maxdepth, maxerr, maxlen, maxstatements, maxparams,
+ member, message, meta, module, moveBy, moveTo, mootools, multistr, name, navigator, new, newcap,
+ nestedBlockDepth, noarg, node, noempty, nomen, nonew, nonstandard, nud, onbeforeunload, onblur,
+ onerror, onevar, onecase, onfocus, onload, onresize, onunload, open, openDatabase, openURL,
+ opener, opera, options, outer, param, parent, parseFloat, parseInt, passfail, plusplus,
+ postMessage, pop, predef, print, process, prompt, proto, prototype, prototypejs, provides, push,
+ quit, quotmark, range, raw, reach, reason, regexp, readFile, readUrl, regexdash,
+ removeEventListener, replace, report, require, reserved, resizeBy, resizeTo, resolvePath,
+ resumeUpdates, respond, rhino, right, runCommand, scroll, scope, screen, scripturl, scrollBy,
+ scrollTo, scrollbar, search, seal, self, send, serialize, sessionStorage, setInterval, setTimeout,
+ setter, setterToken, shift, slice, smarttabs, sort, spawn, split, statement, statementCount, stack,
+ status, start, strict, sub, substr, supernew, shadow, supplant, sum, sync, test, toLowerCase,
+ toString, toUpperCase, toint32, token, tokens, top, trailing, type, typeOf, Uint16Array,
+ Uint32Array, Uint8Array, undef, undefs, unused, urls, validthis, value, valueOf, var, vars,
+ version, verifyMaxParametersPerFunction, verifyMaxStatementsPerFunction,
+ verifyMaxComplexityPerFunction, verifyMaxNestedBlockDepthPerFunction, WebSocket, withstmt, white,
+ window, windows, Worker, worker, wsh, yui, YUI, Y, YUI_config*/
+
+/*global exports: false */
+
+// We build the application inside a function so that we produce only a single
+// global variable. That function will be invoked immediately, and its return
+// value is the JSHINT function itself.
+
+var JSHINT = (function () {
+ "use strict";
+
+ var anonname, // The guessed name for anonymous functions.
+
+// 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 the JSHint boolean options.
+ boolOptions = {
+ asi : true, // if automatic semicolon insertion should be tolerated
+ bitwise : true, // if bitwise operators should not be allowed
+ boss : true, // if advanced usage of assignments should be allowed
+ browser : true, // if the standard browser globals should be predefined
+ camelcase : true, // if identifiers should be required in camel case
+ couch : true, // if CouchDB globals should be predefined
+ curly : true, // if curly braces around all blocks should be required
+ debug : true, // if debugger statements should be allowed
+ devel : true, // if logging globals should be predefined (console,
+ // alert, etc.)
+ dojo : true, // if Dojo Toolkit globals should be predefined
+ eqeqeq : true, // if === should be required
+ eqnull : true, // if == null comparisons should be tolerated
+ es5 : true, // if ES5 syntax should be allowed
+ esnext : true, // if es.next specific syntax should be allowed
+ evil : true, // if eval should be allowed
+ expr : true, // if ExpressionStatement should be allowed as Programs
+ forin : true, // if for in statements must filter
+ funcscope : true, // if only function scope should be used for scope tests
+ globalstrict: true, // if global "use strict"; should be allowed (also
+ // enables 'strict')
+ immed : true, // if immediate invocations must be wrapped in parens
+ iterator : true, // if the `__iterator__` property should be allowed
+ jquery : true, // if jQuery globals should be predefined
+ lastsemic : true, // if semicolons may be ommitted for the trailing
+ // statements inside of a one-line blocks.
+ latedef : true, // if the use before definition should not be tolerated
+ laxbreak : true, // if line breaks should not be checked
+ laxcomma : true, // if line breaks should not be checked around commas
+ loopfunc : true, // if functions should be allowed to be defined within
+ // loops
+ mootools : true, // if MooTools globals should be predefined
+ multistr : true, // allow multiline strings
+ newcap : true, // if constructor names must be capitalized
+ noarg : true, // if arguments.caller and arguments.callee should be
+ // disallowed
+ node : true, // if the Node.js environment globals should be
+ // predefined
+ noempty : true, // if empty blocks should be disallowed
+ nonew : true, // if using `new` for side-effects should be disallowed
+ nonstandard : true, // if non-standard (but widely adopted) globals should
+ // be predefined
+ nomen : true, // if names should be checked
+ onevar : true, // if only one var statement per function should be
+ // allowed
+ onecase : true, // if one case switch statements should be allowed
+ passfail : true, // if the scan should stop on first error
+ plusplus : true, // if increment/decrement should not be allowed
+ proto : true, // if the `__proto__` property should be allowed
+ prototypejs : true, // if Prototype and Scriptaculous globals should be
+ // predefined
+ regexdash : true, // if unescaped first/last dash (-) inside brackets
+ // should be tolerated
+ 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
+ unused : true, // if variables should be always used
+ scripturl : true, // if script-targeted URLs should be tolerated
+ shadow : true, // if variable shadowing should be tolerated
+ smarttabs : true, // if smarttabs should be tolerated
+ // (http://www.emacswiki.org/emacs/SmartTabs)
+ strict : true, // require the "use strict"; pragma
+ sub : true, // if all forms of subscript notation are tolerated
+ supernew : true, // if `new function () { ... };` and `new Object;`
+ // should be tolerated
+ trailing : true, // if trailing whitespace rules apply
+ validthis : true, // if 'this' inside a non-constructor function is valid.
+ // This is a function scoped option only.
+ withstmt : true, // if with statements should be allowed
+ white : true, // if strict whitespace rules apply
+ worker : true, // if Web Worker script symbols should be allowed
+ wsh : true, // if the Windows Scripting Host environment globals
+ // should be predefined
+ yui : true // YUI variables should be predefined
+ },
+
+ // These are the JSHint options that can take any value
+ // (we use this object to detect invalid options)
+ valOptions = {
+ maxlen : false,
+ indent : false,
+ maxerr : false,
+ predef : false,
+ quotmark : false, //'single'|'double'|true
+ scope : false,
+ maxstatements: false, // {int} max statements per function
+ maxdepth : false, // {int} max nested block depth per function
+ maxparams : false, // {int} max params per function
+ maxcomplexity: false // {int} max cyclomatic complexity per function
+ },
+
+ // These are JSHint boolean options which are shared with JSLint
+ // where the definition in JSHint is opposite JSLint
+ invertedOptions = {
+ bitwise : true,
+ forin : true,
+ newcap : true,
+ nomen : true,
+ plusplus : true,
+ regexp : true,
+ undef : true,
+ white : true,
+
+ // Inverted and renamed, use JSHint name here
+ eqeqeq : true,
+ onevar : true
+ },
+
+ // These are JSHint boolean options which are shared with JSLint
+ // where the name has been changed but the effect is unchanged
+ renamedOptions = {
+ eqeq : "eqeqeq",
+ vars : "onevar",
+ windows : "wsh"
+ },
+
+
+ // browser contains a set of global names which are commonly provided by a
+ // web browser environment.
+ browser = {
+ ArrayBuffer : false,
+ ArrayBufferView : false,
+ Audio : false,
+ Blob : false,
+ addEventListener : false,
+ applicationCache : false,
+ atob : false,
+ blur : false,
+ btoa : false,
+ clearInterval : false,
+ clearTimeout : false,
+ close : false,
+ closed : false,
+ DataView : false,
+ DOMParser : false,
+ defaultStatus : false,
+ document : false,
+ event : false,
+ FileReader : false,
+ Float32Array : false,
+ Float64Array : false,
+ FormData : false,
+ focus : false,
+ frames : false,
+ getComputedStyle : false,
+ HTMLElement : false,
+ HTMLAnchorElement : false,
+ HTMLBaseElement : false,
+ HTMLBlockquoteElement : false,
+ HTMLBodyElement : false,
+ HTMLBRElement : false,
+ HTMLButtonElement : false,
+ HTMLCanvasElement : false,
+ HTMLDirectoryElement : false,
+ HTMLDivElement : false,
+ HTMLDListElement : false,
+ HTMLFieldSetElement : false,
+ HTMLFontElement : false,
+ HTMLFormElement : false,
+ HTMLFrameElement : false,
+ HTMLFrameSetElement : false,
+ HTMLHeadElement : false,
+ HTMLHeadingElement : false,
+ HTMLHRElement : false,
+ HTMLHtmlElement : false,
+ HTMLIFrameElement : false,
+ HTMLImageElement : false,
+ HTMLInputElement : false,
+ HTMLIsIndexElement : false,
+ HTMLLabelElement : false,
+ HTMLLayerElement : false,
+ HTMLLegendElement : false,
+ HTMLLIElement : false,
+ HTMLLinkElement : false,
+ HTMLMapElement : false,
+ HTMLMenuElement : false,
+ HTMLMetaElement : false,
+ HTMLModElement : false,
+ HTMLObjectElement : false,
+ HTMLOListElement : false,
+ HTMLOptGroupElement : false,
+ HTMLOptionElement : false,
+ HTMLParagraphElement : false,
+ HTMLParamElement : false,
+ HTMLPreElement : false,
+ HTMLQuoteElement : false,
+ HTMLScriptElement : false,
+ HTMLSelectElement : false,
+ HTMLStyleElement : false,
+ HTMLTableCaptionElement : false,
+ HTMLTableCellElement : false,
+ HTMLTableColElement : false,
+ HTMLTableElement : false,
+ HTMLTableRowElement : false,
+ HTMLTableSectionElement : false,
+ HTMLTextAreaElement : false,
+ HTMLTitleElement : false,
+ HTMLUListElement : false,
+ HTMLVideoElement : false,
+ history : false,
+ Int16Array : false,
+ Int32Array : false,
+ Int8Array : false,
+ Image : false,
+ length : false,
+ localStorage : false,
+ location : false,
+ MessageChannel : false,
+ MessageEvent : false,
+ MessagePort : false,
+ moveBy : false,
+ moveTo : false,
+ MutationObserver : false,
+ name : false,
+ Node : false,
+ NodeFilter : false,
+ navigator : false,
+ onbeforeunload : true,
+ onblur : true,
+ onerror : true,
+ onfocus : true,
+ onload : true,
+ onresize : true,
+ onunload : true,
+ open : false,
+ openDatabase : false,
+ opener : false,
+ Option : false,
+ parent : false,
+ print : false,
+ removeEventListener : false,
+ resizeBy : false,
+ resizeTo : false,
+ screen : false,
+ scroll : false,
+ scrollBy : false,
+ scrollTo : false,
+ sessionStorage : false,
+ setInterval : false,
+ setTimeout : false,
+ SharedWorker : false,
+ status : false,
+ top : false,
+ Uint16Array : false,
+ Uint32Array : false,
+ Uint8Array : false,
+ WebSocket : false,
+ window : false,
+ Worker : false,
+ XMLHttpRequest : false,
+ XMLSerializer : false,
+ XPathEvaluator : false,
+ XPathException : false,
+ XPathExpression : false,
+ XPathNamespace : false,
+ XPathNSResolver : false,
+ XPathResult : false
+ },
+
+ couch = {
+ "require" : false,
+ respond : false,
+ getRow : false,
+ emit : false,
+ send : false,
+ start : false,
+ sum : false,
+ log : false,
+ exports : false,
+ module : false,
+ provides : false
+ },
+
+ declared, // Globals that were declared using /*global ... */ syntax.
+
+ devel = {
+ alert : false,
+ confirm : false,
+ console : false,
+ Debug : false,
+ opera : false,
+ prompt : false
+ },
+
+ dojo = {
+ dojo : false,
+ dijit : false,
+ dojox : false,
+ define : false,
+ "require" : false
+ },
+
+ funct, // The current function
+
+ functionicity = [
+ "closure", "exception", "global", "label",
+ "outer", "unused", "var"
+ ],
+
+ functions, // All of the functions
+
+ global, // The global scope
+ implied, // Implied globals
+ inblock,
+ indent,
+ jsonmode,
+
+ jquery = {
+ "$" : false,
+ jQuery : false
+ },
+
+ lines,
+ lookahead,
+ member,
+ membersOnly,
+
+ mootools = {
+ "$" : false,
+ "$$" : false,
+ Asset : false,
+ Browser : false,
+ Chain : false,
+ Class : false,
+ Color : false,
+ Cookie : false,
+ Core : false,
+ Document : false,
+ DomReady : false,
+ DOMEvent : false,
+ DOMReady : false,
+ Drag : false,
+ Element : false,
+ Elements : false,
+ Event : false,
+ Events : false,
+ Fx : false,
+ Group : false,
+ Hash : false,
+ HtmlTable : false,
+ Iframe : false,
+ IframeShim : false,
+ InputValidator : false,
+ instanceOf : false,
+ Keyboard : false,
+ Locale : false,
+ Mask : false,
+ MooTools : false,
+ Native : false,
+ Options : false,
+ OverText : false,
+ Request : false,
+ Scroller : false,
+ Slick : false,
+ Slider : false,
+ Sortables : false,
+ Spinner : false,
+ Swiff : false,
+ Tips : false,
+ Type : false,
+ typeOf : false,
+ URI : false,
+ Window : false
+ },
+
+ nexttoken,
+
+ node = {
+ __filename : false,
+ __dirname : false,
+ Buffer : false,
+ console : false,
+ exports : true, // In Node it is ok to exports = module.exports = foo();
+ GLOBAL : false,
+ global : false,
+ module : false,
+ process : false,
+ require : false,
+ setTimeout : false,
+ clearTimeout : false,
+ setInterval : false,
+ clearInterval : false
+ },
+
+ noreach,
+ option,
+ predefined, // Global variables defined by option
+ prereg,
+ prevtoken,
+
+ prototypejs = {
+ "$" : false,
+ "$$" : false,
+ "$A" : false,
+ "$F" : false,
+ "$H" : false,
+ "$R" : false,
+ "$break" : false,
+ "$continue" : false,
+ "$w" : false,
+ Abstract : false,
+ Ajax : false,
+ Class : false,
+ Enumerable : false,
+ Element : false,
+ Event : false,
+ Field : false,
+ Form : false,
+ Hash : false,
+ Insertion : false,
+ ObjectRange : false,
+ PeriodicalExecuter: false,
+ Position : false,
+ Prototype : false,
+ Selector : false,
+ Template : false,
+ Toggle : false,
+ Try : false,
+ Autocompleter : false,
+ Builder : false,
+ Control : false,
+ Draggable : false,
+ Draggables : false,
+ Droppables : false,
+ Effect : false,
+ Sortable : false,
+ SortableObserver : false,
+ Sound : false,
+ Scriptaculous : false
+ },
+
+ quotmark,
+
+ rhino = {
+ defineClass : false,
+ deserialize : false,
+ gc : false,
+ help : false,
+ importPackage: false,
+ "java" : 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
+ 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,
+ Map : false,
+ Math : false,
+ NaN : false,
+ Number : false,
+ Object : false,
+ parseInt : false,
+ parseFloat : false,
+ RangeError : false,
+ ReferenceError : false,
+ RegExp : false,
+ Set : false,
+ String : false,
+ SyntaxError : false,
+ TypeError : false,
+ URIError : false,
+ WeakMap : false
+ },
+
+ // widely adopted global names that are not part of ECMAScript standard
+ nonstandard = {
+ escape : false,
+ unescape : false
+ },
+
+ directive,
+ syntax = {},
+ tab,
+ token,
+ unuseds,
+ urls,
+ useESNextSyntax,
+ warnings,
+
+ worker = {
+ importScripts : true,
+ postMessage : true,
+ self : true
+ },
+
+ wsh = {
+ ActiveXObject : true,
+ Enumerator : true,
+ GetObject : true,
+ ScriptEngine : true,
+ ScriptEngineBuildVersion : true,
+ ScriptEngineMajorVersion : true,
+ ScriptEngineMinorVersion : true,
+ VBArray : true,
+ WSH : true,
+ WScript : true,
+ XDomainRequest : true
+ },
+
+ yui = {
+ YUI : false,
+ Y : false,
+ YUI_config : false
+ };
+ // Regular expressions. Some of these are stupidly long.
+ var ax, cx, tx, nx, nxg, lx, ix, jx, ft;
+ (function () {
+ /*jshint maxlen:300 */
+
+ // unsafe comment or string
+ ax = /@cc|<\/?|script|\]\s*\]|<\s*!|</i;
+
+ // unsafe characters that are silently deleted by one or more browsers
+ cx = /[\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/;
+
+ // token
+ tx = /^\s*([(){}\[.,:;'"~\?\]#@]|==?=?|\/=(?!(\S*\/[gim]?))|\/(\*(jshint|jslint|members?|global)?|\/)?|\*[\/=]?|\+(?:=|\++)?|-(?:=|-+)?|%=?|&[&=]?|\|[|=]?|>>?>?=?|<([\/=!]|\!(\[|--)?|<=?)?|\^=?|\!=?=?|[a-zA-Z_$][a-zA-Z0-9_$]*|[0-9]+([xX][0-9a-fA-F]+|\.[0-9]*)?([eE][+\-]?[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;
+
+ // star slash
+ lx = /\*\//;
+
+ // identifier
+ ix = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/;
+
+ // javascript url
+ jx = /^(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i;
+
+ // catches /* falls through */ comments
+ ft = /^\s*\/\*\s*falls\sthrough\s*\*\/\s*$/;
+ }());
+
+ function F() {} // Used by Object.create
+
+ function is_own(object, name) {
+ // The object.hasOwnProperty method fails when the property under consideration
+ // is named 'hasOwnProperty'. So we have to use this more convoluted form.
+ return Object.prototype.hasOwnProperty.call(object, name);
+ }
+
+ function checkOption(name, t) {
+ if (valOptions[name] === undefined && boolOptions[name] === undefined) {
+ warning("Bad option: '" + name + "'.", t);
+ }
+ }
+
+ function isString(obj) {
+ return Object.prototype.toString.call(obj) === "[object String]";
+ }
+
+ // Provide critical ES5 functions to ES3.
+
+ if (typeof Array.isArray !== "function") {
+ Array.isArray = function (o) {
+ return Object.prototype.toString.apply(o) === "[object Array]";
+ };
+ }
+
+ if (!Array.prototype.forEach) {
+ Array.prototype.forEach = function (fn, scope) {
+ var len = this.length;
+
+ for (var i = 0; i < len; i++) {
+ fn.call(scope || this, this[i], i, this);
+ }
+ };
+ }
+
+ if (!Array.prototype.indexOf) {
+ Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) {
+ if (this === null || this === undefined) {
+ throw new TypeError();
+ }
+
+ var t = new Object(this);
+ var len = t.length >>> 0;
+
+ if (len === 0) {
+ return -1;
+ }
+
+ var n = 0;
+ if (arguments.length > 0) {
+ n = Number(arguments[1]);
+ if (n != n) { // shortcut for verifying if it's NaN
+ n = 0;
+ } else if (n !== 0 && n != Infinity && n != -Infinity) {
+ n = (n > 0 || -1) * Math.floor(Math.abs(n));
+ }
+ }
+
+ if (n >= len) {
+ return -1;
+ }
+
+ var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);
+ for (; k < len; k++) {
+ if (k in t && t[k] === searchElement) {
+ return k;
+ }
+ }
+
+ return -1;
+ };
+ }
+
+ if (typeof Object.create !== "function") {
+ Object.create = function (o) {
+ F.prototype = o;
+ return new F();
+ };
+ }
+
+ if (typeof Object.keys !== "function") {
+ Object.keys = function (o) {
+ var a = [], k;
+ for (k in o) {
+ if (is_own(o, k)) {
+ a.push(k);
+ }
+ }
+ return a;
+ };
+ }
+
+ // Non standard methods
+
+ function isAlpha(str) {
+ return (str >= "a" && str <= "z\uffff") ||
+ (str >= "A" && str <= "Z\uffff");
+ }
+
+ function isDigit(str) {
+ return (str >= "0" && str <= "9");
+ }
+
+ function isIdentifier(token, value) {
+ if (!token)
+ return false;
+
+ if (!token.identifier || token.value !== value)
+ return false;
+
+ return true;
+ }
+
+ function supplant(str, data) {
+ return str.replace(/\{([^{}]*)\}/g, function (a, b) {
+ var r = data[b];
+ return typeof r === "string" || typeof r === "number" ? r : a;
+ });
+ }
+
+ function combine(t, o) {
+ var n;
+ for (n in o) {
+ if (is_own(o, n) && !is_own(JSHINT.blacklist, n)) {
+ t[n] = o[n];
+ }
+ }
+ }
+
+ function updatePredefined() {
+ Object.keys(JSHINT.blacklist).forEach(function (key) {
+ delete predefined[key];
+ });
+ }
+
+ function assume() {
+ if (option.couch) {
+ combine(predefined, couch);
+ }
+
+ if (option.rhino) {
+ combine(predefined, rhino);
+ }
+
+ if (option.prototypejs) {
+ combine(predefined, prototypejs);
+ }
+
+ if (option.node) {
+ combine(predefined, node);
+ option.globalstrict = true;
+ }
+
+ if (option.devel) {
+ combine(predefined, devel);
+ }
+
+ if (option.dojo) {
+ combine(predefined, dojo);
+ }
+
+ if (option.browser) {
+ combine(predefined, browser);
+ }
+
+ if (option.nonstandard) {
+ combine(predefined, nonstandard);
+ }
+
+ if (option.jquery) {
+ combine(predefined, jquery);
+ }
+
+ if (option.mootools) {
+ combine(predefined, mootools);
+ }
+
+ if (option.worker) {
+ combine(predefined, worker);
+ }
+
+ if (option.wsh) {
+ combine(predefined, wsh);
+ }
+
+ if (option.esnext) {
+ useESNextSyntax();
+ }
+
+ if (option.globalstrict && option.strict !== false) {
+ option.strict = true;
+ }
+
+ if (option.yui) {
+ combine(predefined, yui);
+ }
+ }
+
+
+ // Produce an error warning.
+ function quit(message, line, chr) {
+ var percentage = Math.floor((line / lines.length) * 100);
+
+ throw {
+ name: "JSHintError",
+ line: line,
+ character: chr,
+ message: message + " (" + percentage + "% scanned).",
+ raw: message
+ };
+ }
+
+ function isundef(scope, m, t, a) {
+ return JSHINT.undefs.push([scope, m, t, a]);
+ }
+
+ 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,
+ scope: JSHINT.scope,
+ a: a,
+ b: b,
+ c: c,
+ d: d
+ };
+ w.reason = supplant(m, w);
+ JSHINT.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) {
+ warning(m, t, a, b, c, d);
+ }
+
+ function errorAt(m, l, ch, a, b, c, d) {
+ return error(m, {
+ line: l,
+ from: ch
+ }, a, b, c, d);
+ }
+
+ // Tracking of "internal" scripts, like eval containing a static string
+ function addInternalSrc(elem, src) {
+ var i;
+ i = {
+ id: "(internal)",
+ elem: elem,
+ value: src
+ };
+ JSHINT.internals.push(i);
+ return i;
+ }
+
+
+// lexical analysis and token construction
+
+ var lex = (function lex() {
+ var character, from, line, s;
+
+// Private lex methods
+
+ function nextLine() {
+ var at,
+ match,
+ tw; // trailing whitespace check
+
+ if (line >= lines.length)
+ return false;
+
+ character = 1;
+ s = lines[line];
+ line += 1;
+
+ // If smarttabs option is used check for spaces followed by tabs only.
+ // Otherwise check for any occurence of mixed tabs and spaces.
+ // Tabs and one space followed by block comment is allowed.
+ if (option.smarttabs) {
+ // negative look-behind for "//"
+ match = s.match(/(\/\/)? \t/);
+ at = match && !match[1] ? 0 : -1;
+ } else {
+ at = s.search(/ \t|\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);
+
+ // Check for trailing whitespaces
+ tw = option.trailing && s.match(/^(.*?)\s+$/);
+ if (tw && !/^\s+$/.test(s)) {
+ warningAt("Trailing whitespace.", line, tw[1].length + 1);
+ }
+ return true;
+ }
+
+// Produce a token object. The token inherits from a syntax symbol.
+
+ function it(type, value) {
+ var i, t;
+
+ function checkName(name) {
+ if (!option.proto && name === "__proto__") {
+ warningAt("The '{a}' property is deprecated.", line, from, name);
+ return;
+ }
+
+ if (!option.iterator && name === "__iterator__") {
+ warningAt("'{a}' is only available in JavaScript 1.7.", line, from, name);
+ return;
+ }
+
+ // Check for dangling underscores unless we're in Node
+ // environment and this identifier represents built-in
+ // Node globals with underscores.
+
+ var hasDangling = /^(_+.*|.*_+)$/.test(name);
+
+ if (option.nomen && hasDangling && name !== "_") {
+ if (option.node && token.id !== "." && /^(__dirname|__filename)$/.test(name))
+ return;
+
+ warningAt("Unexpected {a} in '{b}'.", line, from, "dangling '_'", name);
+ return;
+ }
+
+ // Check for non-camelcase names. Names like MY_VAR and
+ // _myVar are okay though.
+
+ if (option.camelcase) {
+ if (name.replace(/^_+/, "").indexOf("_") > -1 && !name.match(/^[A-Z0-9_]*$/)) {
+ warningAt("Identifier '{a}' is not in camel case.", line, from, value);
+ }
+ }
+ }
+
+ if (type === "(color)" || type === "(range)") {
+ 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 (!option.scripturl && jx.test(value)) {
+ warningAt("Script URL.", line, from);
+ }
+ }
+
+ if (type === "(identifier)") {
+ t.identifier = true;
+ checkName(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" ||
+ i === "case");
+ }
+ 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;
+ }
+
+ // If the first line is a shebang (#!), make it a blank and move on.
+ // Shebangs are used by Node scripts.
+ if (lines[0] && lines[0].substr(0, 2) === "#!")
+ lines[0] = "";
+
+ 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 "\\":
+ warningAt("Unexpected '{a}'.", line, character, c);
+ }
+ value += c;
+ }
+
+ },
+
+
+ // 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, isLiteral, isInRange, n;
+
+ 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 = "", allowNewLine = false;
+
+ if (jsonmode && x !== "\"") {
+ warningAt("Strings must use doublequote.",
+ line, character);
+ }
+
+ if (option.quotmark) {
+ if (option.quotmark === "single" && x !== "'") {
+ warningAt("Strings must use singlequote.",
+ line, character);
+ } else if (option.quotmark === "double" && x !== "\"") {
+ warningAt("Strings must use doublequote.",
+ line, character);
+ } else if (option.quotmark === true) {
+ quotmark = quotmark || x;
+ if (quotmark !== x) {
+ warningAt("Mixed double and single quotes.",
+ line, character);
+ }
+ }
+ }
+
+ 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;
+
+unclosedString:
+ for (;;) {
+ while (j >= s.length) {
+ j = 0;
+
+ var cl = line, cf = from;
+ if (!nextLine()) {
+ errorAt("Unclosed string.", cl, cf);
+ break unclosedString;
+ }
+
+ if (allowNewLine) {
+ allowNewLine = false;
+ } else {
+ warningAt("Unclosed string.", cl, cf);
+ }
+ }
+
+ 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 === "\\") {
+ j += 1;
+ character += 1;
+ c = s.charAt(j);
+ n = s.charAt(j + 1);
+ switch (c) {
+ case "\\":
+ case "\"":
+ case "/":
+ break;
+ case "\'":
+ if (jsonmode) {
+ warningAt("Avoid \\'.", line, character);
+ }
+ 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 "0":
+ c = "\0";
+ // Octal literals fail in strict mode
+ // check if the number is between 00 and 07
+ // where 'n' is the token next to 'c'
+ if (n >= 0 && n <= 7 && directive["use strict"]) {
+ warningAt(
+ "Octal literals are not allowed in strict mode.",
+ line, character);
+ }
+ break;
+ case "u":
+ esc(4);
+ break;
+ case "v":
+ if (jsonmode) {
+ warningAt("Avoid \\v.", line, character);
+ }
+ c = "\v";
+ break;
+ case "x":
+ if (jsonmode) {
+ warningAt("Avoid \\x-.", line, character);
+ }
+ esc(2);
+ break;
+ case "":
+ // last character is escape character
+ // always allow new line if escaped, but show
+ // warning if option is not set
+ allowNewLine = true;
+ if (option.multistr) {
+ if (jsonmode) {
+ warningAt("Avoid EOL escapement.", line, character);
+ }
+ c = "";
+ character -= 1;
+ break;
+ }
+ warningAt("Bad escapement of EOL. Use option multistr if needed.",
+ line, character);
+ break;
+ case "!":
+ if (s.charAt(j - 2) === "<")
+ break;
+ /*falls through*/
+ default:
+ warningAt("Bad escapement.", line, character);
+ }
+ }
+ r += c;
+ character += 1;
+ j += 1;
+ }
+ }
+
+ for (;;) {
+ if (!s) {
+ return it(nextLine() ? "(endline)" : "(end)", "");
+ }
+
+ t = match(tx);
+
+ if (!t) {
+ t = "";
+ c = "";
+ while (s && s < "!") {
+ s = s.substr(1);
+ }
+ if (s) {
+ errorAt("Unexpected '{a}'.", line, character, s.substr(0, 1));
+ s = "";
+ }
+ } else {
+
+ // identifier
+
+ if (isAlpha(c) || c === "_" || c === "$") {
+ return it("(identifier)", t);
+ }
+
+ // number
+
+ if (isDigit(c)) {
+ if (!isFinite(Number(t))) {
+ warningAt("Bad number '{a}'.",
+ line, character, t);
+ }
+ if (isAlpha(s.substr(0, 1))) {
+ warningAt("Missing space after '{a}'.",
+ line, character, t);
+ }
+ if (c === "0") {
+ d = t.substr(1, 1);
+ if (isDigit(d)) {
+ if (token.id !== ".") {
+ 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 "//":
+ s = "";
+ token.comment = true;
+ break;
+
+ // /* comment
+
+ case "/*":
+ for (;;) {
+ i = s.search(lx);
+ if (i >= 0) {
+ break;
+ }
+ if (!nextLine()) {
+ errorAt("Unclosed comment.", line, character);
+ }
+ }
+ s = s.substr(i + 2);
+ token.comment = true;
+ break;
+
+ // /*members /*jshint /*global
+
+ case "/*members":
+ case "/*member":
+ case "/*jshint":
+ case "/*jslint":
+ case "/*global":
+ case "*/":
+ return {
+ value: t,
+ type: "special",
+ line: line,
+ character: character,
+ from: from
+ };
+
+ case "":
+ break;
+ // /
+ case "/":
+ if (s.charAt(0) === "=") {
+ 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 quit("Stopping.", line, from);
+ case "/":
+ if (depth > 0) {
+ warningAt("{a} unterminated regular expression " +
+ "group(s).", line, from + l, depth);
+ }
+ 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 (s.charAt(l) === "]") {
+ errorAt("Unescaped '{a}'.",
+ line, from + l, "^");
+ }
+ }
+ if (c === "]") {
+ warningAt("Empty class.", line,
+ from + l - 1);
+ }
+ isLiteral = false;
+ isInRange = false;
+klass:
+ do {
+ c = s.charAt(l);
+ l += 1;
+ switch (c) {
+ case "[":
+ case "^":
+ warningAt("Unescaped '{a}'.",
+ line, from + l, c);
+ if (isInRange) {
+ isInRange = false;
+ } else {
+ isLiteral = true;
+ }
+ break;
+ case "-":
+ if (isLiteral && !isInRange) {
+ isLiteral = false;
+ isInRange = true;
+ } else if (isInRange) {
+ isInRange = false;
+ } else if (s.charAt(l) === "]") {
+ isInRange = true;
+ } else {
+ if (option.regexdash !== (l === 2 || (l === 3 &&
+ s.charAt(1) === "^"))) {
+ warningAt("Unescaped '{a}'.",
+ line, from + l - 1, "-");
+ }
+ isLiteral = true;
+ }
+ break;
+ case "]":
+ if (isInRange && !option.regexdash) {
+ 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;
+
+ // \w, \s and \d are never part of a character range
+ if (/[wsd]/i.test(c)) {
+ if (isInRange) {
+ warningAt("Unescaped '{a}'.",
+ line, from + l, "-");
+ isInRange = false;
+ }
+ isLiteral = false;
+ } else if (isInRange) {
+ isInRange = false;
+ } else {
+ isLiteral = true;
+ }
+ break;
+ case "/":
+ warningAt("Unescaped '{a}'.",
+ line, from + l - 1, "/");
+
+ if (isInRange) {
+ isInRange = false;
+ } else {
+ isLiteral = true;
+ }
+ break;
+ case "<":
+ if (isInRange) {
+ isInRange = false;
+ } else {
+ isLiteral = true;
+ }
+ break;
+ default:
+ if (isInRange) {
+ isInRange = false;
+ } else {
+ isLiteral = 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);
+ }
+ 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);
+ break; // No reason to continue checking numbers.
+ }
+ 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 "#":
+ return it("(punctuator)", t);
+ default:
+ return it("(punctuator)", t);
+ }
+ }
+ }
+ }
+ };
+ }());
+
+
+ function addlabel(t, type, token) {
+ if (t === "hasOwnProperty") {
+ warning("'hasOwnProperty' is a really bad name.");
+ }
+
+ // Define t in the current function in the current scope.
+ if (type === "exception") {
+ if (is_own(funct["(context)"], t)) {
+ if (funct[t] !== true && !option.node) {
+ warning("Value of '{a}' may be overwritten in IE.", nexttoken, t);
+ }
+ }
+ }
+
+ if (is_own(funct, t) && !funct["(global)"]) {
+ if (funct[t] === true) {
+ if (option.latedef)
+ warning("'{a}' was used before it was defined.", nexttoken, t);
+ } else {
+ if (!option.shadow && type !== "exception") {
+ warning("'{a}' is already defined.", nexttoken, t);
+ }
+ }
+ }
+
+ funct[t] = type;
+
+ if (token) {
+ funct["(tokens)"][t] = token;
+ }
+
+ if (funct["(global)"]) {
+ global[t] = funct;
+ if (is_own(implied, t)) {
+ if (option.latedef)
+ warning("'{a}' was used before it was defined.", nexttoken, t);
+ delete implied[t];
+ }
+ } else {
+ scope[t] = funct;
+ }
+ }
+
+
+ function doOption() {
+ var nt = nexttoken;
+ var o = nt.value;
+ var quotmarkValue = option.quotmark;
+ var predef = {};
+ var b, obj, filter, t, tn, v, minus;
+
+ switch (o) {
+ case "*/":
+ error("Unbegun comment.");
+ break;
+ case "/*members":
+ case "/*member":
+ o = "/*members";
+ if (!membersOnly) {
+ membersOnly = {};
+ }
+ obj = membersOnly;
+ option.quotmark = false;
+ break;
+ case "/*jshint":
+ case "/*jslint":
+ obj = option;
+ filter = boolOptions;
+ break;
+ case "/*global":
+ obj = predef;
+ break;
+ default:
+ error("What?");
+ }
+
+ t = lex.token();
+
+loop:
+ for (;;) {
+ minus = false;
+ for (;;) {
+ if (t.type === "special" && t.value === "*/") {
+ break loop;
+ }
+ if (t.id !== "(endline)" && t.id !== ",") {
+ break;
+ }
+ t = lex.token();
+ }
+
+ if (o === "/*global" && t.value === "-") {
+ minus = true;
+ 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 (o === "/*jshint") {
+ checkOption(t.value, t);
+ }
+
+ var numericVals = [
+ "maxstatements",
+ "maxparams",
+ "maxdepth",
+ "maxcomplexity",
+ "maxerr",
+ "maxlen",
+ "indent"
+ ];
+
+ if (numericVals.indexOf(t.value) > -1 && (o === "/*jshint" || 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);
+ }
+
+ if (t.value === "indent")
+ obj.white = true;
+
+ obj[t.value] = b;
+ } else if (t.value === "validthis") {
+ if (funct["(global)"]) {
+ error("Option 'validthis' can't be used in a global scope.");
+ } else {
+ if (v.value === "true" || v.value === "false")
+ obj[t.value] = v.value === "true";
+ else
+ error("Bad option value.", v);
+ }
+ } else if (t.value === "quotmark" && (o === "/*jshint")) {
+ switch (v.value) {
+ case "true":
+ obj.quotmark = true;
+ break;
+ case "false":
+ obj.quotmark = false;
+ break;
+ case "double":
+ case "single":
+ obj.quotmark = v.value;
+ break;
+ default:
+ error("Bad option value.", v);
+ }
+ } else if (v.value === "true" || v.value === "false") {
+ if (o === "/*jslint") {
+ tn = renamedOptions[t.value] || t.value;
+ obj[tn] = v.value === "true";
+ if (invertedOptions[tn] !== undefined) {
+ obj[tn] = !obj[tn];
+ }
+ } else {
+ obj[t.value] = v.value === "true";
+ }
+
+ if (t.value === "newcap")
+ obj["(explicitNewcap)"] = true;
+ } else {
+ error("Bad option value.", v);
+ }
+ t = lex.token();
+ } else {
+ if (o === "/*jshint" || o === "/*jslint") {
+ error("Missing option value.", t);
+ }
+
+ obj[t.value] = false;
+
+ if (o === "/*global" && minus === true) {
+ JSHINT.blacklist[t.value] = t.value;
+ updatePredefined();
+ }
+
+ t = v;
+ }
+ }
+
+ if (o === "/*members") {
+ option.quotmark = quotmarkValue;
+ }
+
+ combine(predefined, predef);
+
+ for (var key in predef) {
+ if (is_own(predef, key)) {
+ declared[key] = nt;
+ }
+ }
+
+ 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 JSHINT, the Pratt parser. In addition to parsing, it
+// is looking for ad hoc lint patterns. We add .fud to Pratt's model, 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 statement-oriented languages like
+// 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 elements of the parsing method called Top Down Operator Precedence.
+
+ function expression(rbp, initial) {
+ var left, isArray = false, isObject = false;
+
+ if (nexttoken.id === "(end)")
+ error("Unexpected early end of program.", token);
+
+ advance();
+ 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) {
+ isArray = token.value === "Array";
+ isObject = token.value === "Object";
+
+ // #527, new Foo.Array(), Foo.Array(), new Foo.Object(), Foo.Object()
+ // Line breaks in IfStatement heads exist to satisfy the checkJSHint
+ // "Line too long." error.
+ if (left && (left.value || (left.first && left.first.value))) {
+ // If the left.value is not "new", or the left.first.value is a "."
+ // then safely assume that this is not "new Array()" and possibly
+ // not "new Object()"...
+ if (left.value !== "new" ||
+ (left.first && left.first.value && left.first.value === ".")) {
+ isArray = false;
+ // ...In the case of Object, if the left.value and token.value
+ // are not equal, then safely assume that this not "new Object()"
+ if (left.value !== token.value) {
+ isObject = false;
+ }
+ }
+ }
+
+ advance();
+ if (isArray && token.id === "(" && nexttoken.id === ")")
+ warning("Use the array literal notation [].", token);
+ if (isObject && token.id === "(" && nexttoken.id === ")")
+ warning("Use the object literal notation {}.", token);
+ 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) {
+ if (left.character !== right.from && left.line === right.line) {
+ left.from += (left.character - left.from);
+ warning("Unexpected space after '{a}'.", left, left.value);
+ }
+ }
+ }
+
+ function nobreak(left, right) {
+ left = left || token;
+ right = right || nexttoken;
+ if (option.white && (left.character !== right.from || left.line !== right.line)) {
+ warning("Unexpected space before '{a}'.", right, right.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.value === ";" && right.value === ";") {
+ return;
+ }
+ if (left.line === right.line && left.character === right.from) {
+ left.from += (left.character - left.from);
+ warning("Missing space after '{a}'.",
+ left, 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) {
+ left.from += (left.character - left.from);
+ warning("Missing space after '{a}'.",
+ left, 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.laxcomma) {
+ if (comma.first) {
+ warning("Comma warnings can be turned off with 'laxcomma'");
+ comma.first = false;
+ }
+ warning("Bad line breaking before '{a}'.", token, nexttoken.id);
+ }
+ } else if (!token.comment && token.character !== nexttoken.from && option.white) {
+ token.from += (token.character - token.from);
+ warning("Unexpected space after '{a}'.", token, 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 = expression(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 (typeof v === "function") {
+ v(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 (s === "in" && left.id === "!") {
+ warning("Confusing use of '{a}'.", left, "!");
+ }
+ if (typeof f === "function") {
+ return f(left, this);
+ } else {
+ this.left = left;
+ this.right = expression(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 = expression(100);
+
+ if (isIdentifier(left, "NaN") || isIdentifier(right, "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}'.", right, "!");
+ }
+ 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 === "null" && !option.eqnull) ||
+ node.type === "true" ||
+ node.type === "false" ||
+ node.type === "undefined");
+ }
+
+
+ function assignop(s) {
+ symbol(s, 20).exps = true;
+
+ return infix(s, function (left, that) {
+ that.left = left;
+
+ if (predefined[left.value] === false &&
+ scope[left.value]["(global)"] === true) {
+ warning("Read only.", left);
+ } else if (left["function"]) {
+ warning("'{a}' is a function.", left, left.value);
+ }
+
+ if (left) {
+ if (option.esnext && funct[left.value] === "const") {
+ warning("Attempting to override '{a}' which is a constant", left, left.value);
+ }
+
+ if (left.id === "." || left.id === "[") {
+ if (!left.left || left.left.value === "arguments") {
+ warning("Bad assignment.", that);
+ }
+ that.right = expression(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 = expression(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 = expression(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)) {
+ expression(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) {
+ 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;
+ }
+
+
+ // fnparam means that this identifier is being defined as a function
+ // argument (see identifier())
+ function optionalidentifier(fnparam) {
+ if (nexttoken.identifier) {
+ advance();
+ if (token.reserved && !option.es5) {
+ // `undefined` as a function param is a common pattern to protect
+ // against the case when somebody does `undefined = true` and
+ // help with minification. More info: https://gist.github.com/315916
+ if (!fnparam || token.value !== "undefined") {
+ warning("Expected an identifier and instead saw '{a}' (a reserved word).",
+ token, token.id);
+ }
+ }
+ return token.value;
+ }
+ }
+
+ // fnparam means that this identifier is being defined as a function
+ // argument
+ function identifier(fnparam) {
+ var i = optionalidentifier(fnparam);
+ if (i) {
+ return i;
+ }
+ if (token.id === "function" && nexttoken.id === "(") {
+ warning("Missing name in function declaration.");
+ } 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") {
+ if (!option.latedef) {
+ break;
+ }
+ 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;
+
+ if (t.id === ";") {
+ 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 && nexttoken.value !== "{") {
+ 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;
+ }
+
+ // Is it a lonely block?
+
+ if (t.id === "{") {
+ block(true, true);
+ return;
+ }
+
+ // Parse the statement.
+
+ if (!noindent) {
+ indentation();
+ }
+ r = expression(0, true);
+
+ // Look for the final semicolon.
+
+ if (!t.block) {
+ if (!option.expr && (!r || !r.exps)) {
+ warning("Expected an assignment or function call and instead saw an expression.",
+ token);
+ } else if (option.nonew && r.id === "(" && r.left.id === "new") {
+ warning("Do not use 'new' for side effects.", t);
+ }
+
+ if (nexttoken.id === ",") {
+ return comma();
+ }
+
+ if (nexttoken.id !== ";") {
+ if (!option.asi) {
+ // If this is the last statement in a block that ends on
+ // the same line *and* option lastsemic is on, ignore the warning.
+ // Otherwise, complain about missing semicolon.
+ if (!option.lastsemic || nexttoken.id !== "}" ||
+ nexttoken.line !== token.line) {
+ warningAt("Missing semicolon.", token.line, token.character);
+ }
+ }
+ } else {
+ adjacent(token, nexttoken);
+ advance(";");
+ nonadjacent(token, nexttoken);
+ }
+ }
+
+// Restore the indentation.
+
+ indent = i;
+ scope = s;
+ return r;
+ }
+
+
+ function statements(startLine) {
+ var a = [], p;
+
+ while (!nexttoken.reach && nexttoken.id !== "(end)") {
+ if (nexttoken.id === ";") {
+ p = peek();
+ if (!p || p.id !== "(") {
+ warning("Unnecessary semicolon.");
+ }
+ advance(";");
+ } else {
+ a.push(statement(startLine === nexttoken.line));
+ }
+ }
+ return a;
+ }
+
+
+ /*
+ * read all directives
+ * recognizes a simple form of asi, but always
+ * warns, if it is used
+ */
+ function directives() {
+ var i, p, pn;
+
+ for (;;) {
+ if (nexttoken.id === "(string)") {
+ p = peek(0);
+ if (p.id === "(endline)") {
+ i = 1;
+ do {
+ pn = peek(i);
+ i = i + 1;
+ } while (pn.id === "(endline)");
+
+ if (pn.id !== ";") {
+ if (pn.id !== "(string)" && pn.id !== "(number)" &&
+ pn.id !== "(regexp)" && pn.identifier !== true &&
+ pn.id !== "}") {
+ break;
+ }
+ warning("Missing semicolon.", nexttoken);
+ } else {
+ p = pn;
+ }
+ } else if (p.id === "}") {
+ // directive with no other statements, warn about missing semicolon
+ warning("Missing semicolon.", p);
+ } else if (p.id !== ";") {
+ break;
+ }
+
+ indentation();
+ advance();
+ if (directive[token.value]) {
+ warning("Unnecessary directive \"{a}\".", token, token.value);
+ }
+
+ if (token.value === "use strict") {
+ if (!option["(explicitNewcap)"])
+ option.newcap = true;
+ option.undef = true;
+ }
+
+ // there's no directive negation, so always set to true
+ directive[token.value] = true;
+
+ if (p.id === ";") {
+ advance(";");
+ }
+ continue;
+ }
+ break;
+ }
+ }
+
+
+ /*
+ * Parses a single block. A block is a sequence of statements wrapped in
+ * braces.
+ *
+ * ordinary - true for everything but function bodies and try blocks.
+ * stmt - true if block can be a single statement (e.g. in if/for/while).
+ * isfunc - true if block is a function body
+ */
+ function block(ordinary, stmt, isfunc) {
+ var a,
+ b = inblock,
+ old_indent = indent,
+ m,
+ s = scope,
+ t,
+ line,
+ d;
+
+ inblock = ordinary;
+
+ if (!ordinary || !option.funcscope)
+ scope = Object.create(scope);
+
+ nonadjacent(token, nexttoken);
+ t = nexttoken;
+
+ var metrics = funct["(metrics)"];
+ metrics.nestedBlockDepth += 1;
+ metrics.verifyMaxNestedBlockDepthPerFunction();
+
+ if (nexttoken.id === "{") {
+ advance("{");
+ line = token.line;
+ if (nexttoken.id !== "}") {
+ indent += option.indent;
+ while (!ordinary && nexttoken.from > indent) {
+ indent += option.indent;
+ }
+
+ if (isfunc) {
+ m = {};
+ for (d in directive) {
+ if (is_own(directive, d)) {
+ m[d] = directive[d];
+ }
+ }
+ directives();
+
+ if (option.strict && funct["(context)"]["(global)"]) {
+ if (!m["use strict"] && !directive["use strict"]) {
+ warning("Missing \"use strict\" statement.");
+ }
+ }
+ }
+
+ a = statements(line);
+
+ metrics.statementCount += a.length;
+
+ if (isfunc) {
+ directive = m;
+ }
+
+ indent -= option.indent;
+ if (line !== nexttoken.line) {
+ indentation();
+ }
+ } else if (line !== nexttoken.line) {
+ indentation();
+ }
+ advance("}", t);
+ indent = old_indent;
+ } else if (!ordinary) {
+ error("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, "{", nexttoken.value);
+ } else {
+ if (!stmt || option.curly)
+ warning("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, "{", nexttoken.value);
+
+ noreach = true;
+ indent += option.indent;
+ // test indentation only if statement is in new line
+ a = [statement(nexttoken.line === token.line)];
+ indent -= option.indent;
+ noreach = false;
+ }
+ funct["(verb)"] = null;
+ if (!ordinary || !option.funcscope) scope = s;
+ inblock = b;
+ if (ordinary && option.noempty && (!a || a.length === 0)) {
+ warning("Empty block.");
+ }
+ metrics.nestedBlockDepth -= 1;
+ return a;
+ }
+
+
+ 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);
+ }
+ }
+
+
+ // Build the syntax table by declaring the syntactic elements of the language.
+
+ type("(number)", function () {
+ return this;
+ });
+
+ type("(string)", function () {
+ return this;
+ });
+
+ syntax["(identifier)"] = {
+ type: "(identifier)",
+ lbp: 0,
+ identifier: true,
+ nud: function () {
+ var v = this.value,
+ s = scope[v],
+ f;
+
+ if (typeof s === "function") {
+ // Protection against accidental inheritance.
+ 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 "unction":
+ funct[v] = "function";
+ this["function"] = true;
+ break;
+ case "function":
+ this["function"] = true;
+ break;
+ case "label":
+ warning("'{a}' is a statement label.", token, v);
+ break;
+ }
+ } else if (funct["(global)"]) {
+ // The name is not defined in the function. If we are in the global
+ // scope, then we have an undefined variable.
+ //
+ // Operators typeof and delete do not raise runtime errors even if
+ // the base object of a reference is null so no need to display warning
+ // if we're inside of typeof or delete.
+
+ if (option.undef && typeof predefined[v] !== "boolean") {
+ // Attempting to subscript a null reference will throw an
+ // error, even within the typeof and delete operators
+ if (!(anonname === "typeof" || anonname === "delete") ||
+ (nexttoken && (nexttoken.value === "." || nexttoken.value === "["))) {
+
+ isundef(funct, "'{a}' is not defined.", token, v);
+ }
+ }
+
+ note_implied(token);
+ } else {
+ // If the name is already defined in the current
+ // function, but not as outer, then there is a scope error.
+
+ 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") {
+ // Operators typeof and delete do not raise runtime errors even
+ // if the base object of a reference is null so no need to
+ // display warning if we're inside of typeof or delete.
+ if (option.undef) {
+ // Attempting to subscript a null reference will throw an
+ // error, even within the typeof and delete operators
+ if (!(anonname === "typeof" || anonname === "delete") ||
+ (nexttoken &&
+ (nexttoken.value === "." || nexttoken.value === "["))) {
+
+ isundef(funct, "'{a}' is not defined.", token, v);
+ }
+ }
+ funct[v] = true;
+ note_implied(token);
+ } else {
+ switch (s[v]) {
+ case "function":
+ case "unction":
+ this["function"] = true;
+ s[v] = "closure";
+ funct[v] = s["(global)"] ? "global" : "outer";
+ break;
+ case "var":
+ case "unused":
+ s[v] = "closure";
+ funct[v] = s["(global)"] ? "global" : "outer";
+ break;
+ case "closure":
+ 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", function (x) {
+ if (directive["use strict"] && funct["(global)"]) {
+ warning("Strict violation.", x);
+ }
+ });
+ reservevar("eval");
+ reservevar("false");
+ reservevar("Infinity");
+ reservevar("null");
+ reservevar("this", function (x) {
+ if (directive["use strict"] && !option.validthis && ((funct["(statement)"] &&
+ funct["(name)"].charAt(0) > "Z") || funct["(global)"])) {
+ warning("Possible strict violation.", x);
+ }
+ });
+ 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 = expression(10);
+ advance(":");
+ that["else"] = expression(10);
+ return that;
+ }, 30);
+
+ infix("||", "or", 40);
+ infix("&&", "and", 50);
+ bitwise("|", "bitor", 70);
+ bitwise("^", "bitxor", 80);
+ bitwise("&", "bitand", 90);
+ relation("==", function (left, right) {
+ var eqnull = option.eqnull && (left.value === "null" || right.value === "null");
+
+ if (!eqnull && 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) {
+ var eqnull = option.eqnull &&
+ (left.value === "null" || right.value === "null");
+
+ if (!eqnull && 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 = expression(130);
+ if (left && right && left.id === "(string)" && right.id === "(string)") {
+ left.value += right.value;
+ left.character = right.character;
+ if (!option.scripturl && 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 = expression(150);
+ this.arity = "unary";
+ return this;
+ });
+ infix("+++", function (left) {
+ warning("Confusing pluses.");
+ this.left = left;
+ this.right = expression(130);
+ return this;
+ }, 130);
+ infix("-", "sub", 130);
+ prefix("-", "neg");
+ prefix("---", function () {
+ warning("Confusing minuses.");
+ this.right = expression(150);
+ this.arity = "unary";
+ return this;
+ });
+ infix("---", function (left) {
+ warning("Confusing minuses.");
+ this.left = left;
+ this.right = expression(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 = expression(0);
+ if (!p || (p.id !== "." && p.id !== "[")) {
+ warning("Variables should not be deleted.");
+ }
+ this.first = p;
+ return this;
+ }).exps = true;
+
+ prefix("~", function () {
+ if (option.bitwise) {
+ warning("Unexpected '{a}'.", this, "~");
+ }
+ expression(150);
+ return this;
+ });
+
+ prefix("!", function () {
+ this.right = expression(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 = expression(155), i;
+ if (c && c.id !== "function") {
+ if (c.identifier) {
+ c["new"] = true;
+ switch (c.value) {
+ case "Number":
+ case "String":
+ case "Boolean":
+ case "Math":
+ case "JSON":
+ warning("Do not use {a} as a constructor.", prevtoken, 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") && !is_own(global, c.value)) {
+ warning("A constructor name should start with an uppercase letter.",
+ token);
+ }
+ }
+ }
+ } else {
+ if (c.id !== "." && c.id !== "[" && c.id !== "(") {
+ warning("Bad constructor.", token);
+ }
+ }
+ } else {
+ if (!option.supernew)
+ warning("Weird construction. Delete 'new'.", this);
+ }
+ adjacent(token, nexttoken);
+ if (nexttoken.id !== "(" && !option.supernew) {
+ warning("Missing '()' invoking a constructor.",
+ token, token.value);
+ }
+ this.first = c;
+ return this;
+ });
+ syntax["new"].exps = true;
+
+ prefix("void").exps = true;
+
+ infix(".", function (left, that) {
+ adjacent(prevtoken, token);
+ nobreak();
+ var m = identifier();
+ if (typeof m === "string") {
+ countMember(m);
+ }
+ that.left = left;
+ that.right = m;
+ if (left && left.value === "arguments" && (m === "callee" || m === "caller")) {
+ if (option.noarg)
+ warning("Avoid arguments.{a}.", left, m);
+ else if (directive["use strict"])
+ error("Strict violation.");
+ } else if (!option.evil && left && left.value === "document" &&
+ (m === "write" || m === "writeln")) {
+ warning("document.write can be a form of eval.", left);
+ }
+ if (!option.evil && (m === "eval" || m === "execScript")) {
+ warning("eval is evil.");
+ }
+ return that;
+ }, 160, true);
+
+ infix("(", function (left, that) {
+ if (prevtoken.id !== "}" && prevtoken.id !== ")") {
+ nobreak(prevtoken, token);
+ }
+ nospace();
+ if (option.immed && !left.immed && left.id === "function") {
+ warning("Wrap an immediate function invocation in parentheses " +
+ "to assist the reader in understanding that the expression " +
+ "is the result of a function, and not the function itself.");
+ }
+ 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 ("Number String Boolean Date Object".indexOf(left.value) === -1) {
+ if (left.value === "Math") {
+ warning("Math is not a function.", left);
+ } else if (option.newcap) {
+ warning("Missing 'new' prefix when invoking a constructor.", left);
+ }
+ }
+ }
+ }
+ }
+ if (nexttoken.id !== ")") {
+ for (;;) {
+ p[p.length] = expression(10);
+ n += 1;
+ if (nexttoken.id !== ",") {
+ break;
+ }
+ comma();
+ }
+ }
+ advance(")");
+ nospace(prevtoken, token);
+ if (typeof left === "object") {
+ if (left.value === "parseInt" && n === 1) {
+ warning("Missing radix parameter.", token);
+ }
+ if (!option.evil) {
+ if (left.value === "eval" || left.value === "Function" ||
+ left.value === "execScript") {
+ warning("eval is evil.", left);
+
+ if (p[0] && [0].id === "(string)") {
+ addInternalSrc(left, p[0].value);
+ }
+ } 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);
+ addInternalSrc(left, p[0].value);
+
+ // window.setTimeout/setInterval
+ } else if (p[0] && p[0].id === "(string)" &&
+ left.value === "." &&
+ left.left.value === "window" &&
+ (left.right === "setTimeout" ||
+ left.right === "setInterval")) {
+ warning(
+ "Implied eval is evil. Pass a function instead of a string.", left);
+ addInternalSrc(left, p[0].value);
+ }
+ }
+ 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();
+ if (nexttoken.id === "function") {
+ nexttoken.immed = true;
+ }
+ var v = expression(0);
+ advance(")", this);
+ nospace(prevtoken, token);
+ if (option.immed && v.id === "function") {
+ if (nexttoken.id !== "(" &&
+ (nexttoken.id !== "." || (peek().value !== "call" && peek().value !== "apply"))) {
+ warning(
+"Do not wrap function literals in parens unless they are to be immediately invoked.",
+ this);
+ }
+ }
+
+ return v;
+ });
+
+ infix("[", function (left, that) {
+ nobreak(prevtoken, token);
+ nospace();
+ var e = expression(0), s;
+ if (e && e.type === "(string)") {
+ if (!option.evil && (e.value === "eval" || e.value === "execScript")) {
+ warning("eval is evil.", that);
+ }
+ 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.",
+ prevtoken, e.value);
+ }
+ }
+ }
+ 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 === ",") {
+ if (!option.es5)
+ warning("Extra comma.");
+ advance(",");
+ }
+ if (nexttoken.id === "]") {
+ break;
+ }
+ if (b && token.line !== nexttoken.line) {
+ indentation();
+ }
+ this.first.push(expression(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;
+ advance();
+ } else if (nexttoken.id === "(number)") {
+ id = nexttoken.value.toString();
+ advance();
+ }
+ }
+ return id;
+ }
+
+
+ function functionparams() {
+ var next = nexttoken;
+ var params = [];
+ var ident;
+
+ advance("(");
+ nospace();
+
+ if (nexttoken.id === ")") {
+ advance(")");
+ return;
+ }
+
+ for (;;) {
+ ident = identifier(true);
+ params.push(ident);
+ addlabel(ident, "unused", token);
+ if (nexttoken.id === ",") {
+ comma();
+ } else {
+ advance(")", next);
+ nospace(prevtoken, token);
+ return params;
+ }
+ }
+ }
+
+
+ function doFunction(name, statement) {
+ var f;
+ var oldOption = option;
+ var oldScope = scope;
+
+ option = Object.create(option);
+ scope = Object.create(scope);
+
+ funct = {
+ "(name)" : name || "\"" + anonname + "\"",
+ "(line)" : nexttoken.line,
+ "(character)": nexttoken.character,
+ "(context)" : funct,
+ "(breakage)" : 0,
+ "(loopage)" : 0,
+ "(metrics)" : createMetrics(nexttoken),
+ "(scope)" : scope,
+ "(statement)": statement,
+ "(tokens)" : {}
+ };
+
+ f = funct;
+ token.funct = funct;
+
+ functions.push(funct);
+
+ if (name) {
+ addlabel(name, "function");
+ }
+
+ funct["(params)"] = functionparams();
+ funct["(metrics)"].verifyMaxParametersPerFunction(funct["(params)"]);
+
+ block(false, false, true);
+
+ funct["(metrics)"].verifyMaxStatementsPerFunction();
+ funct["(metrics)"].verifyMaxComplexityPerFunction();
+
+ scope = oldScope;
+ option = oldOption;
+ funct["(last)"] = token.line;
+ funct["(lastcharacter)"] = token.character;
+ funct = funct["(context)"];
+
+ return f;
+ }
+
+ function createMetrics(functionStartToken) {
+ return {
+ statementCount: 0,
+ nestedBlockDepth: -1,
+ ComplexityCount: 1,
+ verifyMaxStatementsPerFunction: function () {
+ if (option.maxstatements &&
+ this.statementCount > option.maxstatements) {
+ var message = "Too many statements per function (" + this.statementCount + ").";
+ warning(message, functionStartToken);
+ }
+ },
+
+ verifyMaxParametersPerFunction: function (params) {
+ params = params || [];
+
+ if (option.maxparams && params.length > option.maxparams) {
+ var message = "Too many parameters per function (" + params.length + ").";
+ warning(message, functionStartToken);
+ }
+ },
+
+ verifyMaxNestedBlockDepthPerFunction: function () {
+ if (option.maxdepth &&
+ this.nestedBlockDepth > 0 &&
+ this.nestedBlockDepth === option.maxdepth + 1) {
+ var message = "Blocks are nested too deeply (" + this.nestedBlockDepth + ").";
+ warning(message);
+ }
+ },
+
+ verifyMaxComplexityPerFunction: function () {
+ var max = option.maxcomplexity;
+ var cc = this.ComplexityCount;
+ if (max && cc > max) {
+ var message = "Cyclomatic complexity is too high per function (" + cc + ").";
+ warning(message, functionStartToken);
+ }
+ }
+ };
+ }
+
+ function increaseComplexityCount() {
+ funct["(metrics)"].ComplexityCount += 1;
+ }
+
+
+ (function (x) {
+ x.nud = function () {
+ var b, f, i, p, t;
+ var props = {}; // All properties, including accessors
+
+ function saveProperty(name, token) {
+ if (props[name] && is_own(props, name))
+ warning("Duplicate member '{a}'.", nexttoken, i);
+ else
+ props[name] = {};
+
+ props[name].basic = true;
+ props[name].basicToken = token;
+ }
+
+ function saveSetter(name, token) {
+ if (props[name] && is_own(props, name)) {
+ if (props[name].basic || props[name].setter)
+ warning("Duplicate member '{a}'.", nexttoken, i);
+ } else {
+ props[name] = {};
+ }
+
+ props[name].setter = true;
+ props[name].setterToken = token;
+ }
+
+ function saveGetter(name) {
+ if (props[name] && is_own(props, name)) {
+ if (props[name].basic || props[name].getter)
+ warning("Duplicate member '{a}'.", nexttoken, i);
+ } else {
+ props[name] = {};
+ }
+
+ props[name].getter = true;
+ props[name].getterToken = token;
+ }
+
+ 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.");
+ }
+ saveGetter(i);
+ t = nexttoken;
+ adjacent(token, nexttoken);
+ f = doFunction();
+ p = f["(params)"];
+ if (p) {
+ warning("Unexpected parameter '{a}' in get {b} function.", t, p[0], i);
+ }
+ adjacent(token, nexttoken);
+ } else if (nexttoken.value === "set" && peek().id !== ":") {
+ advance("set");
+ if (!option.es5) {
+ error("get/set are ES5 features.");
+ }
+ i = property_name();
+ if (!i) {
+ error("Missing property name.");
+ }
+ saveSetter(i, nexttoken);
+ t = nexttoken;
+ adjacent(token, nexttoken);
+ f = doFunction();
+ p = f["(params)"];
+ if (!p || p.length !== 1) {
+ warning("Expected a single parameter in set {a} function.", t, i);
+ }
+ } else {
+ i = property_name();
+ saveProperty(i, nexttoken);
+ if (typeof i !== "string") {
+ break;
+ }
+ advance(":");
+ nonadjacent(token, nexttoken);
+ expression(10);
+ }
+
+ 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);
+
+ // Check for lonely setters if in the ES5 mode.
+ if (option.es5) {
+ for (var name in props) {
+ if (is_own(props, name) && props[name].setter && !props[name].getter) {
+ warning("Setter is defined without getter.", props[name].setterToken);
+ }
+ }
+ }
+ return this;
+ };
+ x.fud = function () {
+ error("Expected to see a statement and instead saw a block.", token);
+ };
+ }(delim("{")));
+
+// This Function is called when esnext option is set to true
+// it adds the `const` statement to JSHINT
+
+ useESNextSyntax = function () {
+ var conststatement = stmt("const", function (prefix) {
+ var id, name, value;
+
+ this.first = [];
+ for (;;) {
+ nonadjacent(token, nexttoken);
+ id = identifier();
+ if (funct[id] === "const") {
+ warning("const '" + id + "' has already been declared");
+ }
+ if (funct["(global)"] && predefined[id] === false) {
+ warning("Redefinition of '{a}'.", token, id);
+ }
+ addlabel(id, "const");
+ if (prefix) {
+ break;
+ }
+ name = token;
+ this.first.push(token);
+
+ if (nexttoken.id !== "=") {
+ warning("const " +
+ "'{a}' is initialized to 'undefined'.", token, id);
+ }
+
+ 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("Constant {a} was not declared correctly.",
+ nexttoken, nexttoken.value);
+ }
+ value = expression(0);
+ name.first = value;
+ }
+
+ if (nexttoken.id !== ",") {
+ break;
+ }
+ comma();
+ }
+ return this;
+ });
+ conststatement.exps = true;
+ };
+
+ var varstatement = stmt("var", function (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 (option.esnext && funct[id] === "const") {
+ warning("const '" + id + "' has already been declared");
+ }
+
+ if (funct["(global)"] && predefined[id] === false) {
+ warning("Redefinition of '{a}'.", token, id);
+ }
+
+ addlabel(id, "unused", token);
+
+ 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 = expression(0);
+ name.first = value;
+ }
+ if (nexttoken.id !== ",") {
+ break;
+ }
+ comma();
+ }
+ return this;
+ });
+ varstatement.exps = true;
+
+ blockstmt("function", function () {
+ if (inblock) {
+ warning("Function declarations should not be placed in blocks. " +
+ "Use a function expression or move the statement to the top of " +
+ "the outer function.", token);
+
+ }
+ var i = identifier();
+ if (option.esnext && funct[i] === "const") {
+ warning("const '" + i + "' has already been declared");
+ }
+ adjacent(token, nexttoken);
+ addlabel(i, "unction", token);
+
+ doFunction(i, { statement: true });
+ if (nexttoken.id === "(" && nexttoken.line === token.line) {
+ error(
+"Function declarations 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 (!option.loopfunc && funct["(loopage)"]) {
+ warning("Don't make functions within a loop.");
+ }
+ return this;
+ });
+
+ blockstmt("if", function () {
+ var t = nexttoken;
+ increaseComplexityCount();
+ advance("(");
+ nonadjacent(this, t);
+ nospace();
+ expression(20);
+ if (nexttoken.id === "=") {
+ if (!option.boss)
+ warning("Expected a conditional expression and instead saw an assignment.");
+ advance("=");
+ expression(20);
+ }
+ advance(")", t);
+ nospace(prevtoken, token);
+ block(true, true);
+ if (nexttoken.id === "else") {
+ nonadjacent(token, nexttoken);
+ advance("else");
+ if (nexttoken.id === "if" || nexttoken.id === "switch") {
+ statement(true);
+ } else {
+ block(true, true);
+ }
+ }
+ return this;
+ });
+
+ blockstmt("try", function () {
+ var b;
+
+ function doCatch() {
+ var oldScope = scope;
+ var e;
+
+ advance("catch");
+ nonadjacent(token, nexttoken);
+ advance("(");
+
+ scope = Object.create(oldScope);
+
+ e = nexttoken.value;
+ if (nexttoken.type !== "(identifier)") {
+ e = null;
+ warning("Expected an identifier and instead saw '{a}'.", nexttoken, e);
+ }
+
+ advance();
+ advance(")");
+
+ funct = {
+ "(name)" : "(catch)",
+ "(line)" : nexttoken.line,
+ "(character)": nexttoken.character,
+ "(context)" : funct,
+ "(breakage)" : funct["(breakage)"],
+ "(loopage)" : funct["(loopage)"],
+ "(scope)" : scope,
+ "(statement)": false,
+ "(metrics)" : createMetrics(nexttoken),
+ "(catch)" : true,
+ "(tokens)" : {}
+ };
+
+ if (e) {
+ addlabel(e, "exception");
+ }
+
+ token.funct = funct;
+ functions.push(funct);
+
+ block(false);
+
+ scope = oldScope;
+
+ funct["(last)"] = token.line;
+ funct["(lastcharacter)"] = token.character;
+ funct = funct["(context)"];
+ }
+
+ block(false);
+
+ if (nexttoken.id === "catch") {
+ increaseComplexityCount();
+ doCatch();
+ b = true;
+ }
+
+ 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;
+ increaseComplexityCount();
+ advance("(");
+ nonadjacent(this, t);
+ nospace();
+ expression(20);
+ if (nexttoken.id === "=") {
+ if (!option.boss)
+ warning("Expected a conditional expression and instead saw an assignment.");
+ advance("=");
+ expression(20);
+ }
+ advance(")", t);
+ nospace(prevtoken, token);
+ block(true, true);
+ funct["(breakage)"] -= 1;
+ funct["(loopage)"] -= 1;
+ return this;
+ }).labelled = true;
+
+ blockstmt("with", function () {
+ var t = nexttoken;
+ if (directive["use strict"]) {
+ error("'with' is not allowed in strict mode.", token);
+ } else if (!option.withstmt) {
+ warning("Don't use 'with'.", token);
+ }
+
+ advance("(");
+ nonadjacent(this, t);
+ nospace();
+ expression(0);
+ advance(")", t);
+ nospace(prevtoken, token);
+ block(true, true);
+
+ return this;
+ });
+
+ blockstmt("switch", function () {
+ var t = nexttoken,
+ g = false;
+ funct["(breakage)"] += 1;
+ advance("(");
+ nonadjacent(this, t);
+ nospace();
+ this.condition = expression(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:
+ // You can tell JSHint that you don't use break intentionally by
+ // adding a comment /* falls through */ on a line just before
+ // the next `case`.
+ if (!ft.test(lines[nexttoken.line - 2])) {
+ warning(
+ "Expected a 'break' statement before 'case'.",
+ token);
+ }
+ }
+ indentation(-option.indent);
+ advance("case");
+ this.cases.push(expression(20));
+ increaseComplexityCount();
+ g = true;
+ advance(":");
+ funct["(verb)"] = "case";
+ break;
+ case "default":
+ switch (funct["(verb)"]) {
+ case "break":
+ case "continue":
+ case "return":
+ case "throw":
+ break;
+ default:
+ if (!ft.test(lines[nexttoken.line - 2])) {
+ 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") {
+ if (!option.onecase)
+ 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 ":":
+ g = false;
+ statements();
+ break;
+ default:
+ error("Missing ':' on a case clause.", token);
+ return;
+ }
+ } else {
+ if (token.id === ":") {
+ advance(":");
+ error("Unexpected '{a}'.", token, ":");
+ statements();
+ } else {
+ error("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, "case", nexttoken.value);
+ return;
+ }
+ }
+ }
+ }
+ }).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;
+ increaseComplexityCount();
+
+ this.first = block(true);
+ advance("while");
+ var t = nexttoken;
+ nonadjacent(token, t);
+ advance("(");
+ nospace();
+ expression(20);
+ if (nexttoken.id === "=") {
+ if (!option.boss)
+ warning("Expected a conditional expression and instead saw an assignment.");
+ advance("=");
+ expression(20);
+ }
+ advance(")", t);
+ nospace(prevtoken, token);
+ funct["(breakage)"] -= 1;
+ funct["(loopage)"] -= 1;
+ return this;
+ });
+ x.labelled = true;
+ x.exps = true;
+ }());
+
+ blockstmt("for", function () {
+ var s, t = nexttoken;
+ funct["(breakage)"] += 1;
+ funct["(loopage)"] += 1;
+ increaseComplexityCount();
+ advance("(");
+ nonadjacent(this, t);
+ nospace();
+ if (peek(nexttoken.id === "var" ? 1 : 0).id === "in") {
+ if (nexttoken.id === "var") {
+ advance("var");
+ varstatement.fud.call(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");
+ expression(20);
+ advance(")", t);
+ s = block(true, true);
+ if (option.forin && s && (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.fud.call(varstatement);
+ } else {
+ for (;;) {
+ expression(0, "for");
+ if (nexttoken.id !== ",") {
+ break;
+ }
+ comma();
+ }
+ }
+ }
+ nolinebreak(token);
+ advance(";");
+ if (nexttoken.id !== ";") {
+ expression(20);
+ if (nexttoken.id === "=") {
+ if (!option.boss)
+ warning("Expected a conditional expression and instead saw an assignment.");
+ advance("=");
+ expression(20);
+ }
+ }
+ nolinebreak(token);
+ advance(";");
+ if (nexttoken.id === ";") {
+ error("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, ")", ";");
+ }
+ if (nexttoken.id !== ")") {
+ for (;;) {
+ expression(0, "for");
+ if (nexttoken.id !== ",") {
+ break;
+ }
+ comma();
+ }
+ }
+ advance(")", t);
+ nospace(prevtoken, token);
+ block(true, 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);
+
+ if (!option.asi)
+ 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);
+
+ if (!option.asi)
+ 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 () {
+ if (this.line === nexttoken.line) {
+ if (nexttoken.id === "(regexp)")
+ warning("Wrap the /regexp/ literal in parens to disambiguate the slash operator.");
+
+ if (nexttoken.id !== ";" && !nexttoken.reach) {
+ nonadjacent(token, nexttoken);
+ if (peek().value === "=" && !option.boss) {
+ warningAt("Did you mean to return a conditional instead of an assignment?",
+ token.line, token.character + 1);
+ }
+ this.first = expression(0);
+ }
+ } else if (!option.asi) {
+ nolinebreak(this); // always warn (Line breaking error)
+ }
+ reachable("return");
+ return this;
+ }).exps = true;
+
+
+ stmt("throw", function () {
+ nolinebreak(this);
+ nonadjacent(token, nexttoken);
+ this.first = expression(20);
+ reachable("throw");
+ return this;
+ }).exps = true;
+
+// 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__" &&
+ !option.proto) || (nexttoken.value === "__iterator__" &&
+ !option.iterator)) {
+ warning("The '{a}' key may produce unexpected results.",
+ 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 JSHINT function itself.
+ var itself = function (s, o, g) {
+ var a, i, k, x;
+ var optionKeys;
+ var newOptionObj = {};
+
+ if (o && o.scope) {
+ JSHINT.scope = o.scope;
+ } else {
+ JSHINT.errors = [];
+ JSHINT.undefs = [];
+ JSHINT.internals = [];
+ JSHINT.blacklist = {};
+ JSHINT.scope = "(main)";
+ }
+
+ predefined = Object.create(standard);
+ declared = Object.create(null);
+ combine(predefined, g || {});
+
+ if (o) {
+ a = o.predef;
+ if (a) {
+ if (!Array.isArray(a) && typeof a === "object") {
+ a = Object.keys(a);
+ }
+ a.forEach(function (item) {
+ var slice;
+ if (item[0] === "-") {
+ slice = item.slice(1);
+ JSHINT.blacklist[slice] = slice;
+ } else {
+ predefined[item] = true;
+ }
+ });
+ }
+
+ optionKeys = Object.keys(o);
+ for (x = 0; x < optionKeys.length; x++) {
+ newOptionObj[optionKeys[x]] = o[optionKeys[x]];
+
+ if (optionKeys[x] === "newcap" && o[optionKeys[x]] === false)
+ newOptionObj["(explicitNewcap)"] = true;
+
+ if (optionKeys[x] === "indent")
+ newOptionObj.white = true;
+ }
+ }
+
+ option = newOptionObj;
+
+ option.indent = option.indent || 4;
+ option.maxerr = option.maxerr || 50;
+
+ 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,
+ "(tokens)": {},
+ "(metrics)": createMetrics(nexttoken)
+ };
+ functions = [funct];
+ urls = [];
+ stack = null;
+ member = {};
+ membersOnly = null;
+ implied = {};
+ inblock = false;
+ lookahead = [];
+ jsonmode = false;
+ warnings = 0;
+ lines = [];
+ unuseds = [];
+
+ if (!isString(s) && !Array.isArray(s)) {
+ errorAt("Input is neither a string nor an array of strings.", 0);
+ return false;
+ }
+
+ if (isString(s) && /^\s*$/g.test(s)) {
+ errorAt("Input is an empty string.", 0);
+ return false;
+ }
+
+ if (s.length === 0) {
+ errorAt("Input is an empty array.", 0);
+ return false;
+ }
+
+ lex.init(s);
+
+ prereg = true;
+ directive = {};
+
+ prevtoken = token = nexttoken = syntax["(begin)"];
+
+ // Check options
+ for (var name in o) {
+ if (is_own(o, name)) {
+ checkOption(name, token);
+ }
+ }
+
+ assume();
+
+ // combine the passed globals after we've assumed all our options
+ combine(predefined, g || {});
+
+ //reset values
+ comma.first = true;
+ quotmark = undefined;
+
+ try {
+ advance();
+ switch (nexttoken.id) {
+ case "{":
+ case "[":
+ option.laxbreak = true;
+ jsonmode = true;
+ jsonValue();
+ break;
+ default:
+ directives();
+ if (directive["use strict"] && !option.globalstrict) {
+ warning("Use the function form of \"use strict\".", prevtoken);
+ }
+
+ statements();
+ }
+ advance((nexttoken && nexttoken.value !== ".") ? "(end)" : undefined);
+
+ var markDefined = function (name, context) {
+ do {
+ if (typeof context[name] === "string") {
+ // JSHINT marks unused variables as 'unused' and
+ // unused function declaration as 'unction'. This
+ // code changes such instances back 'var' and
+ // 'closure' so that the code in JSHINT.data()
+ // doesn't think they're unused.
+
+ if (context[name] === "unused")
+ context[name] = "var";
+ else if (context[name] === "unction")
+ context[name] = "closure";
+
+ return true;
+ }
+
+ context = context["(context)"];
+ } while (context);
+
+ return false;
+ };
+
+ var clearImplied = function (name, line) {
+ if (!implied[name])
+ return;
+
+ var newImplied = [];
+ for (var i = 0; i < implied[name].length; i += 1) {
+ if (implied[name][i] !== line)
+ newImplied.push(implied[name][i]);
+ }
+
+ if (newImplied.length === 0)
+ delete implied[name];
+ else
+ implied[name] = newImplied;
+ };
+
+ var warnUnused = function (name, token) {
+ var line = token.line;
+ var chr = token.character;
+
+ if (option.unused)
+ warningAt("'{a}' is defined but never used.", line, chr, name);
+
+ unuseds.push({
+ name: name,
+ line: line,
+ character: chr
+ });
+ };
+
+ var checkUnused = function (func, key) {
+ var type = func[key];
+ var token = func["(tokens)"][key];
+
+ if (key.charAt(0) === "(")
+ return;
+
+ if (type !== "unused" && type !== "unction")
+ return;
+
+ // Params are checked separately from other variables.
+ if (func["(params)"] && func["(params)"].indexOf(key) !== -1)
+ return;
+
+ warnUnused(key, token);
+ };
+
+ // Check queued 'x is not defined' instances to see if they're still undefined.
+ for (i = 0; i < JSHINT.undefs.length; i += 1) {
+ k = JSHINT.undefs[i].slice(0);
+
+ if (markDefined(k[2].value, k[0])) {
+ clearImplied(k[2].value, k[2].line);
+ } else {
+ warning.apply(warning, k.slice(1));
+ }
+ }
+
+ functions.forEach(function (func) {
+ for (var key in func) {
+ if (is_own(func, key)) {
+ checkUnused(func, key);
+ }
+ }
+
+ if (!func["(params)"])
+ return;
+
+ var params = func["(params)"].slice();
+ var param = params.pop();
+ var type;
+
+ while (param) {
+ type = func[param];
+
+ // 'undefined' is a special case for (function (window, undefined) { ... })();
+ // patterns.
+
+ if (param === "undefined")
+ return;
+
+ if (type !== "unused" && type !== "unction")
+ return;
+
+ warnUnused(param, func["(tokens)"][param]);
+ param = params.pop();
+ }
+ });
+
+ for (var key in declared) {
+ if (is_own(declared, key) && !is_own(global, key)) {
+ warnUnused(key, declared[key]);
+ }
+ }
+ } catch (e) {
+ if (e) {
+ var nt = nexttoken || {};
+ JSHINT.errors.push({
+ raw : e.raw,
+ reason : e.message,
+ line : e.line || nt.line,
+ character : e.character || nt.from
+ }, null);
+ }
+ }
+
+ // Loop over the listed "internals", and check them as well.
+
+ if (JSHINT.scope === "(main)") {
+ o = o || {};
+
+ for (i = 0; i < JSHINT.internals.length; i += 1) {
+ k = JSHINT.internals[i];
+ o.scope = k.elem;
+ itself(k.value, o, g);
+ }
+ }
+
+ return JSHINT.errors.length === 0;
+ };
+
+ // Data summary.
+ itself.data = function () {
+ var data = {
+ functions: [],
+ options: option
+ };
+ var implieds = [];
+ var members = [];
+ var fu, f, i, j, n, globals;
+
+ 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 = Object.keys(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 (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.character = f["(character)"];
+ fu.last = f["(last)"];
+ fu.lastcharacter = f["(lastcharacter)"];
+ data.functions.push(fu);
+ }
+
+ if (unuseds.length > 0) {
+ data.unused = unuseds;
+ }
+
+ members = [];
+ for (n in member) {
+ if (typeof member[n] === "number") {
+ data.member = member;
+ break;
+ }
+ }
+
+ return data;
+ };
+
+ itself.jshint = itself;
+
+ return itself;
+}());
+
+// Make JSHINT a Node module, if possible.
+if (typeof exports === "object" && exports) {
+ exports.JSHINT = JSHINT;
+}
\ No newline at end of file
git://git.onelab.eu / unfold.git / blobdiff