3872 lines
136 KiB
JavaScript
3872 lines
136 KiB
JavaScript
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// jslint.js
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// 2008-03-15
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/*
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Copyright (c) 2002 Douglas Crockford (www.JSLint.com)
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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The Software shall be used for Good, not Evil.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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/*
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JSLINT is a global function. It takes two parameters.
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var myResult = JSLINT(source, option, adsafe);
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The first parameter is either a string or an array of strings. If it is a
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string, it will be split on '\n' or '\r'. If it is an array of strings, it
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is assumed that each string represents one line. The source can be a
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JavaScript text, or HTML text, or a Konfabulator text.
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The second parameter is an optional object of options which control the
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operation of JSLINT. All of the options are booleans. All are optional and
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have a default value of false.
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The third parameter is an optional object that names the global objects
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that are allowed under ADsafe. The default is {
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ADSAFE: true,
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}. Each member must have a true value. These names will deliver methods
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to the guest code. The guest will be allowed to call the methods, but not
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to retrieve or set members.
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If it checks out, JSLINT returns true. Otherwise, it returns false.
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If false, you can inspect JSLINT.errors to find out the problems.
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JSLINT.errors is an array of objects containing these members:
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{
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line : The line (relative to 0) at which the lint was found
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character : The character (relative to 0) at which the lint was found
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reason : The problem
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evidence : The text line in which the problem occurred
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raw : The raw message before the details were inserted
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a : The first detail
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b : The second detail
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c : The third detail
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d : The fourth detail
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}
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If a fatal error was found, a null will be the last element of the
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JSLINT.errors array.
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You can request a Function Report, which shows all of the functions
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and the parameters and vars that they use. This can be used to find
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implied global variables and other problems. The report is in HTML and
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can be inserted in a <body>.
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var myReport = JSLINT.report(option);
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If the option is true, then the report will be limited to only errors.
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*/
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/*jslint evil: true, nomen: false */
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/*members "\b", "\t", "\n", "\f", "\r", "\"", "(begin)", "(breakage)",
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"(context)", "(end)", "(global)", "(identifier)", "(line)", "(name)",
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"(params)", "(scope)", "(verb)", ")", "++", "--", "\/", ADSAFE, Array,
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Boolean, COM, Canvas, CustomAnimation, Date, Debug, E, Error, EvalError,
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FadeAnimation, Frame, Function, HotKey, Image, LN10, LN2, LOG10E, LOG2E,
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MAX_VALUE, MIN_VALUE, Math, MenuItem, MoveAnimation, NEGATIVE_INFINITY,
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Number, Object, PI, POSITIVE_INFINITY, Point, RangeError,
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ReferenceError, RegExp, RotateAnimation, SQRT1_2, SQRT2, ScrollBar,
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String, SyntaxError, System, Text, TextArea, TypeError, URIError, URL,
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Window, XMLDOM, XMLHttpRequest, "\\", "]", a, abbr, "about-box",
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"about-image", "about-text", "about-version", acronym, action, address,
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adsafe, alert, alignment, anchorstyle, animator, appleScript, applet,
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apply, area, author, autohide, b, background, base, bdo, beep, beget,
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bgcolor, bgcolour, bgopacity, big, bitwise, block, blockquote, blur,
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body, br, browser, button, bytesToUIString, c, call, callee, caller,
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canvas, cap, caption, cases, center, charAt, charCodeAt, character,
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charset, checked, chooseColor, chooseFile, chooseFolder, cite,
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clearInterval, clearTimeout, cliprect, close, closeWidget, closed, code,
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col, colgroup, color, colorize, colour, columns, company, condition,
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confirm, console, constructor, content, contextmenuitems,
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convertPathToHFS, convertPathToPlatform, copyright, d, data, dd, debug,
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decodeURI, decodeURIComponent, defaultStatus, defaulttracking,
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defaultvalue, defineClass, del, description, deserialize, dfn, dir,
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directory, div, dl, doAttribute, doBegin, doIt, doTagName, document, dt,
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dynsrc, editable, em, embed, empty, enabled, encodeURI,
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encodeURIComponent, entityify, eqeqeq, errors, escape, eval, event,
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evidence, evil, exec, exps, extension, fieldset, file, filesystem,
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fillmode, floor, focus, focusWidget, font, fontstyle, forin, form,
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fragment, frame, frames, frameset, from, fromCharCode, fud, function, g,
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gc, getComputedStyle, group, h1, h2, h3, h4, h5, h6, halign,
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handlelinks, hasOwnProperty, head, height, help, hidden, history,
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hlinesize, hoffset, hotkey, hr, href, hregistrationpoint, hscrollbar,
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hsladjustment, hsltinting, html, i, iTunes, icon, id, identifier,
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iframe, image, img, include, indexOf, init, input, ins, interval,
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isAlpha, isApplicationRunning, isDigit, isFinite, isNaN, join, kbd, key,
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kind, konfabulatorVersion, label, labelled, laxbreak, lbp, led, left,
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legend, length, level, li, line, lines, link, load, loadClass,
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loadingsrc, location, locked, log, lowsrc, m, map, match, max,
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maxlength, menu, menuitem, message, meta, min, minimumversion,
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minlength, missingsrc, modifier, moveBy, moveTo, name, navigator, new,
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noframes, nomen, noscript, notsaved, nud, object, ol, on, onblur,
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onclick, oncontextmenu, ondragdrop, ondragenter, ondragexit, onerror,
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onfirstdisplay, onfocus, ongainfocus, onimageloaded, onkeydown,
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onkeypress, onkeyup, onload, onlosefocus, onmousedown, onmousedrag,
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onmouseenter, onmouseexit, onmousemove, onmouseup, onmousewheel,
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onmulticlick, onresize, onselect, ontextinput, ontimerfired, onunload,
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onvaluechanged, opacity, open, openURL, opener, opera, optgroup, option,
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optionvalue, order, orientation, p, pagesize, param, parent, parseFloat,
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parseInt, passfail, play, plusplus, pop, popupMenu, pre, preference,
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preferenceGroups, preferencegroup, preferences, print, prompt,
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prototype, push, q, quit, random, raw, reach, readFile, readUrl, reason,
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regexp, reloadWidget, remoteasync, replace, report, requiredplatform,
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reserved, resizeBy, resizeTo, resolvePath, resumeUpdates, rhino, right,
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root, rotation, runCommand, runCommandInBg, samp, saveAs,
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savePreferences, screen, script, scroll, scrollBy, scrollTo, scrollbar,
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scrolling, scrollx, scrolly, seal, search, secure, select, self,
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serialize, setInterval, setTimeout, setting, settings, shadow, shift,
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showWidgetPreferences, sidebar, size, skip, sleep, slice, small, sort,
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span, spawn, speak, special, spellcheck, split, src, srcheight,
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srcwidth, status, strong, style, sub, substr, subviews, sup, superview,
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supplant, suppressUpdates, sync, system, table, tag, tbody, td,
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tellWidget, test, text, textarea, tfoot, th, thead, thumbcolor, ticking,
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ticklabel, ticks, tileorigin, timer, title, toLowerCase, toString,
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toint32, token, tooltip, top, tr, tracking, trigger, truncation, tt,
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type, u, ul, undef, unescape, union, unwatch, updateNow, url,
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usefileicon, valign, value, valueOf, var, version, visible, vlinesize,
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voffset, vregistrationpoint, vscrollbar, watch, white, widget, width,
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window, wrap, yahooCheckLogin, yahooLogin, yahooLogout, zorder
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*/
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// We build the application inside a function so that we produce only a single
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// global variable. The function will be invoked, its return value is the JSLINT
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// application itself.
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var JSLINT;
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JSLINT = function () {
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// These are members that should not be permitted in third party ads.
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var adsafe = { // the member names that ADsafe prohibits.
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apply : true,
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call : true,
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callee : true,
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caller : true,
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constructor : true,
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'eval' : true,
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prototype : true,
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unwatch : true,
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valueOf : true,
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watch : true
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},
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adsafe_allow, // the global objects that ADsafe allows.
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// These are all of the JSLint options.
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allOptions = {
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adsafe : true, // if use of some browser features should be restricted
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bitwise : true, // if bitwise operators should not be allowed
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browser : true, // if the standard browser globals should be predefined
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cap : true, // if upper case HTML should be allowed
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debug : true, // if debugger statements should be allowed
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eqeqeq : true, // if === should be required
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evil : true, // if eval should be allowed
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forin : true, // if for in statements must filter
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fragment : true, // if HTML fragments should be allowed
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laxbreak : true, // if line breaks should not be checked
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nomen : true, // if names should be checked
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on : true, // if HTML event handlers should be allowed
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passfail : true, // if the scan should stop on first error
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plusplus : true, // if increment/decrement should not be allowed
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regexp : true, // if the . should not be allowed in regexp literals
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rhino : true, // if the Rhino environment globals should be predefined
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undef : true, // if variables should be declared before used
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sidebar : true, // if the System object should be predefined
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white : true, // if strict whitespace rules apply
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widget : true // if the Yahoo Widgets globals should be predefined
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},
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anonname, // The guessed name for anonymous functions.
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// browser contains a set of global names which are commonly provided by a
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// web browser environment.
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browser = {
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alert : true,
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blur : true,
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clearInterval : true,
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clearTimeout : true,
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close : true,
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closed : true,
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confirm : true,
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console : true,
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Debug : true,
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defaultStatus : true,
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document : true,
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event : true,
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focus : true,
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frames : true,
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getComputedStyle: true,
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history : true,
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Image : true,
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length : true,
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location : true,
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moveBy : true,
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moveTo : true,
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name : true,
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navigator : true,
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onblur : true,
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onerror : true,
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onfocus : true,
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onload : true,
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onresize : true,
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onunload : true,
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open : true,
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opener : true,
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opera : true,
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parent : true,
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print : true,
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prompt : true,
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resizeBy : true,
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resizeTo : true,
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screen : true,
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scroll : true,
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scrollBy : true,
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scrollTo : true,
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self : true,
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setInterval : true,
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setTimeout : true,
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status : true,
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top : true,
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window : true,
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XMLHttpRequest : true
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},
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escapes = {
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'\b': '\\b',
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'\t': '\\t',
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'\n': '\\n',
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'\f': '\\f',
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'\r': '\\r',
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'"' : '\\"',
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'/' : '\\/',
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'\\': '\\\\'
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},
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funct, // The current function
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functions, // All of the functions
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href = {
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background : true,
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content : true,
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data : true,
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dynsrc : true,
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href : true,
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lowsrc : true,
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value : true,
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src : true,
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style : true
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},
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global, // The global object
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globals, // The current globals
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implied, // Implied globals
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inblock,
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indent,
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jsonmode,
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lines,
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lookahead,
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math_member = {
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E: true,
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LN2: true,
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LN10: true,
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LOG2E: true,
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LOG10E: true,
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PI: true,
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SQRT1_2: true,
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SQRT2: true
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},
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member,
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membersOnly,
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nexttoken,
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noreach,
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number_member = {
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MAX_VALUE: true,
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MIN_VALUE: true,
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NEGATIVE_INFINITY: true,
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POSITIVE_INFINITY: true
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},
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option,
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prereg,
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prevtoken,
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rhino = {
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defineClass : true,
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deserialize : true,
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gc : true,
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help : true,
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load : true,
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loadClass : true,
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print : true,
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quit : true,
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readFile : true,
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readUrl : true,
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runCommand : true,
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seal : true,
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serialize : true,
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spawn : true,
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sync : true,
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toint32 : true,
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version : true
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},
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scope, // The current scope
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sidebar = {
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System : true
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},
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src,
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stack,
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// standard contains the global names that are provided by the
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|
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// ECMAScript standard.
|
||
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standard = {
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Array : true,
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Boolean : true,
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Date : true,
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decodeURI : true,
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decodeURIComponent : true,
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encodeURI : true,
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encodeURIComponent : true,
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Error : true,
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escape : true,
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'eval' : true,
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EvalError : true,
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Function : true,
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isFinite : true,
|
||
|
|
isNaN : true,
|
||
|
|
Math : true,
|
||
|
|
Number : true,
|
||
|
|
Object : true,
|
||
|
|
parseInt : true,
|
||
|
|
parseFloat : true,
|
||
|
|
RangeError : true,
|
||
|
|
ReferenceError : true,
|
||
|
|
RegExp : true,
|
||
|
|
String : true,
|
||
|
|
SyntaxError : true,
|
||
|
|
TypeError : true,
|
||
|
|
unescape : true,
|
||
|
|
URIError : true
|
||
|
|
},
|
||
|
|
|
||
|
|
syntax = {},
|
||
|
|
token,
|
||
|
|
warnings,
|
||
|
|
|
||
|
|
// widget contains the global names which are provided to a Yahoo
|
||
|
|
// (fna Konfabulator) widget.
|
||
|
|
|
||
|
|
widget = {
|
||
|
|
alert : true,
|
||
|
|
appleScript : true,
|
||
|
|
animator : true,
|
||
|
|
appleScript : true,
|
||
|
|
beep : true,
|
||
|
|
bytesToUIString : true,
|
||
|
|
Canvas : true,
|
||
|
|
chooseColor : true,
|
||
|
|
chooseFile : true,
|
||
|
|
chooseFolder : true,
|
||
|
|
convertPathToHFS : true,
|
||
|
|
convertPathToPlatform : true,
|
||
|
|
closeWidget : true,
|
||
|
|
COM : true,
|
||
|
|
CustomAnimation : true,
|
||
|
|
escape : true,
|
||
|
|
FadeAnimation : true,
|
||
|
|
filesystem : true,
|
||
|
|
focusWidget : true,
|
||
|
|
form : true,
|
||
|
|
Frame : true,
|
||
|
|
HotKey : true,
|
||
|
|
Image : true,
|
||
|
|
include : true,
|
||
|
|
isApplicationRunning : true,
|
||
|
|
iTunes : true,
|
||
|
|
konfabulatorVersion : true,
|
||
|
|
log : true,
|
||
|
|
MenuItem : true,
|
||
|
|
MoveAnimation : true,
|
||
|
|
openURL : true,
|
||
|
|
play : true,
|
||
|
|
Point : true,
|
||
|
|
popupMenu : true,
|
||
|
|
preferenceGroups : true,
|
||
|
|
preferences : true,
|
||
|
|
print : true,
|
||
|
|
prompt : true,
|
||
|
|
random : true,
|
||
|
|
reloadWidget : true,
|
||
|
|
resolvePath : true,
|
||
|
|
resumeUpdates : true,
|
||
|
|
RotateAnimation : true,
|
||
|
|
runCommand : true,
|
||
|
|
runCommandInBg : true,
|
||
|
|
saveAs : true,
|
||
|
|
savePreferences : true,
|
||
|
|
screen : true,
|
||
|
|
ScrollBar : true,
|
||
|
|
showWidgetPreferences : true,
|
||
|
|
sleep : true,
|
||
|
|
speak : true,
|
||
|
|
suppressUpdates : true,
|
||
|
|
system : true,
|
||
|
|
tellWidget : true,
|
||
|
|
Text : true,
|
||
|
|
TextArea : true,
|
||
|
|
unescape : true,
|
||
|
|
updateNow : true,
|
||
|
|
URL : true,
|
||
|
|
widget : true,
|
||
|
|
Window : true,
|
||
|
|
XMLDOM : true,
|
||
|
|
XMLHttpRequest : true,
|
||
|
|
yahooCheckLogin : true,
|
||
|
|
yahooLogin : true,
|
||
|
|
yahooLogout : true
|
||
|
|
},
|
||
|
|
|
||
|
|
// xmode is used to adapt to the exceptions in XML parsing.
|
||
|
|
// It can have these states:
|
||
|
|
// false .js script file
|
||
|
|
// " A " attribute
|
||
|
|
// ' A ' attribute
|
||
|
|
// content The content of a script tag
|
||
|
|
// CDATA A CDATA block
|
||
|
|
|
||
|
|
xmode,
|
||
|
|
|
||
|
|
// xtype identifies the type of document being analyzed.
|
||
|
|
// It can have these states:
|
||
|
|
// false .js script file
|
||
|
|
// html .html file
|
||
|
|
// widget .kon Konfabulator file
|
||
|
|
|
||
|
|
xtype,
|
||
|
|
|
||
|
|
// unsafe comment
|
||
|
|
ax = /@cc|<\/?script|\]\]|&/i,
|
||
|
|
// unsafe character
|
||
|
|
cx = /[\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/,
|
||
|
|
// token
|
||
|
|
tx = /^\s*([(){}\[.,:;'"~]|\](\]>)?|\?>?|==?=?|\/(\*(global|extern|jslint|member|members)?|=|\/)?|\*[\/=]?|\+[+=]?|-[\-=]?|%[=>]?|&[&=]?|\|[|=]?|>>?>?=?|<([\/=%\?]|\!(\[|--)?|<=?)?|\^=?|\!=?=?|[a-zA-Z_$][a-zA-Z0-9_$]*|[0-9]+([xX][0-9a-fA-F]+|\.[0-9]*)?([eE][+\-]?[0-9]+)?)/,
|
||
|
|
// star slash
|
||
|
|
lx = /\*\/|\/\*/,
|
||
|
|
// identifier
|
||
|
|
ix = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/,
|
||
|
|
// javascript url
|
||
|
|
jx = /(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i,
|
||
|
|
// url badness
|
||
|
|
ux = /&|\+|\u00AD|\.\.|\/\*|%[^;]|base64|url|expression|data|mailto/i;
|
||
|
|
|
||
|
|
function F() {}
|
||
|
|
|
||
|
|
function object(o) {
|
||
|
|
F.prototype = o;
|
||
|
|
return new F();
|
||
|
|
}
|
||
|
|
|
||
|
|
Object.prototype.union = function (o) {
|
||
|
|
var n;
|
||
|
|
for (n in o) if (o.hasOwnProperty(n)) {
|
||
|
|
this[n] = o[n];
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
String.prototype.entityify = function () {
|
||
|
|
return this.
|
||
|
|
replace(/&/g, '&').
|
||
|
|
replace(/</g, '<').
|
||
|
|
replace(/>/g, '>');
|
||
|
|
};
|
||
|
|
|
||
|
|
String.prototype.isAlpha = function () {
|
||
|
|
return (this >= 'a' && this <= 'z\uffff') ||
|
||
|
|
(this >= 'A' && this <= 'Z\uffff');
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
String.prototype.isDigit = function () {
|
||
|
|
return (this >= '0' && this <= '9');
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
String.prototype.supplant = function (o) {
|
||
|
|
return this.replace(/\{([^{}]*)\}/g, function (a, b) {
|
||
|
|
var r = o[b];
|
||
|
|
return typeof r === 'string' || typeof r === 'number' ? r : a;
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
String.prototype.name = function () {
|
||
|
|
|
||
|
|
// If the string looks like an identifier, then we can return it as is.
|
||
|
|
// If the string contains no control characters, no quote characters, and no
|
||
|
|
// backslash characters, then we can simply slap some quotes around it.
|
||
|
|
// Otherwise we must also replace the offending characters with safe
|
||
|
|
// sequences.
|
||
|
|
|
||
|
|
|
||
|
|
if (ix.test(this)) {
|
||
|
|
return this;
|
||
|
|
}
|
||
|
|
if (/[&<"\/\\\x00-\x1f]/.test(this)) {
|
||
|
|
return '"' + this.replace(/[&<"\/\\\x00-\x1f]/g, function (a) {
|
||
|
|
var c = escapes[a];
|
||
|
|
if (c) {
|
||
|
|
return c;
|
||
|
|
}
|
||
|
|
c = a.charCodeAt();
|
||
|
|
return '\\u00' +
|
||
|
|
Math.floor(c / 16).toString(16) +
|
||
|
|
(c % 16).toString(16);
|
||
|
|
}) + '"';
|
||
|
|
}
|
||
|
|
return '"' + this + '"';
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
function populateGlobals() {
|
||
|
|
if (option.adsafe) {
|
||
|
|
globals.union(adsafe_allow);
|
||
|
|
} else {
|
||
|
|
if (option.rhino) {
|
||
|
|
globals.union(rhino);
|
||
|
|
}
|
||
|
|
if (option.browser || option.sidebar) {
|
||
|
|
globals.union(browser);
|
||
|
|
}
|
||
|
|
if (option.sidebar) {
|
||
|
|
globals.union(sidebar);
|
||
|
|
}
|
||
|
|
if (option.widget) {
|
||
|
|
globals.union(widget);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// Produce an error warning.
|
||
|
|
|
||
|
|
function quit(m, l, ch) {
|
||
|
|
throw {
|
||
|
|
name: 'JSLintError',
|
||
|
|
line: l,
|
||
|
|
character: ch,
|
||
|
|
message: m + " (" + Math.floor((l / lines.length) * 100) +
|
||
|
|
"% scanned)."
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
function warning(m, t, a, b, c, d) {
|
||
|
|
var ch, l, w;
|
||
|
|
t = t || nexttoken;
|
||
|
|
if (t.id === '(end)') {
|
||
|
|
t = token;
|
||
|
|
}
|
||
|
|
l = t.line || 0;
|
||
|
|
ch = t.from || 0;
|
||
|
|
w = {
|
||
|
|
id: '(error)',
|
||
|
|
raw: m,
|
||
|
|
evidence: lines[l] || '',
|
||
|
|
line: l,
|
||
|
|
character: ch,
|
||
|
|
a: a,
|
||
|
|
b: b,
|
||
|
|
c: c,
|
||
|
|
d: d
|
||
|
|
};
|
||
|
|
w.reason = m.supplant(w);
|
||
|
|
JSLINT.errors.push(w);
|
||
|
|
if (option.passfail) {
|
||
|
|
quit('Stopping. ', l, ch);
|
||
|
|
}
|
||
|
|
warnings += 1;
|
||
|
|
if (warnings === 50) {
|
||
|
|
quit("Too many errors.", l, ch);
|
||
|
|
}
|
||
|
|
return w;
|
||
|
|
}
|
||
|
|
|
||
|
|
function warningAt(m, l, ch, a, b, c, d) {
|
||
|
|
return warning(m, {
|
||
|
|
line: l,
|
||
|
|
from: ch
|
||
|
|
}, a, b, c, d);
|
||
|
|
}
|
||
|
|
|
||
|
|
function error(m, t, a, b, c, d) {
|
||
|
|
var w = warning(m, t, a, b, c, d);
|
||
|
|
quit("Stopping, unable to continue.", w.line, w.character);
|
||
|
|
}
|
||
|
|
|
||
|
|
function errorAt(m, l, ch, a, b, c, d) {
|
||
|
|
return error(m, {
|
||
|
|
line: l,
|
||
|
|
from: ch
|
||
|
|
}, a, b, c, d);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
// lexical analysis
|
||
|
|
|
||
|
|
var lex = function () {
|
||
|
|
var character, from, line, s;
|
||
|
|
|
||
|
|
// Private lex methods
|
||
|
|
|
||
|
|
function nextLine() {
|
||
|
|
var at;
|
||
|
|
line += 1;
|
||
|
|
if (line >= lines.length) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
character = 0;
|
||
|
|
s = lines[line].replace(/\t/g, ' ');
|
||
|
|
at = s.search(cx);
|
||
|
|
if (at >= 0) {
|
||
|
|
warningAt("Unsafe character.", line, at);
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Produce a token object. The token inherits from a syntax symbol.
|
||
|
|
|
||
|
|
function it(type, value) {
|
||
|
|
var i, t;
|
||
|
|
if (type === '(punctuator)' ||
|
||
|
|
(type === '(identifier)' && syntax.hasOwnProperty(value))) {
|
||
|
|
t = syntax[value];
|
||
|
|
|
||
|
|
// Mozilla bug workaround.
|
||
|
|
|
||
|
|
if (!t.id) {
|
||
|
|
t = syntax[type];
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
t = syntax[type];
|
||
|
|
}
|
||
|
|
t = object(t);
|
||
|
|
if (type === '(string)') {
|
||
|
|
if (jx.test(value)) {
|
||
|
|
warningAt("Script URL.", line, from);
|
||
|
|
}
|
||
|
|
} else if (type === '(identifier)') {
|
||
|
|
if (option.nomen && value.charAt(0) === '_') {
|
||
|
|
warningAt("Unexpected '_' in '{a}'.", line, from, value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
t.value = value;
|
||
|
|
t.line = line;
|
||
|
|
t.character = character;
|
||
|
|
t.from = from;
|
||
|
|
i = t.id;
|
||
|
|
if (i !== '(endline)') {
|
||
|
|
prereg = i &&
|
||
|
|
(('(,=:[!&|?{};'.indexOf(i.charAt(i.length - 1)) >= 0) ||
|
||
|
|
i === 'return');
|
||
|
|
}
|
||
|
|
return t;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Public lex methods
|
||
|
|
|
||
|
|
return {
|
||
|
|
init: function (source) {
|
||
|
|
if (typeof source === 'string') {
|
||
|
|
lines = source.
|
||
|
|
replace(/\r\n/g, '\n').
|
||
|
|
replace(/\r/g, '\n').
|
||
|
|
split('\n');
|
||
|
|
} else {
|
||
|
|
lines = source;
|
||
|
|
}
|
||
|
|
line = -1;
|
||
|
|
nextLine();
|
||
|
|
from = 0;
|
||
|
|
},
|
||
|
|
|
||
|
|
// token -- this is called by advance to get the next token.
|
||
|
|
|
||
|
|
token: function () {
|
||
|
|
var b, c, captures, d, depth, high, i, l, low, q, t;
|
||
|
|
|
||
|
|
function match(x) {
|
||
|
|
var r = x.exec(s), r1;
|
||
|
|
if (r) {
|
||
|
|
l = r[0].length;
|
||
|
|
r1 = r[1];
|
||
|
|
c = r1.charAt(0);
|
||
|
|
s = s.substr(l);
|
||
|
|
character += l;
|
||
|
|
from = character - r1.length;
|
||
|
|
return r1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function string(x) {
|
||
|
|
var c, j, r = '';
|
||
|
|
|
||
|
|
if (jsonmode && x !== '"') {
|
||
|
|
warningAt("Strings must use doublequote.",
|
||
|
|
line, character);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (xmode === x || xmode === 'string') {
|
||
|
|
return it('(punctuator)', x);
|
||
|
|
}
|
||
|
|
|
||
|
|
function esc(n) {
|
||
|
|
var i = parseInt(s.substr(j + 1, n), 16);
|
||
|
|
j += n;
|
||
|
|
if (i >= 32 && i <= 127 &&
|
||
|
|
i !== 34 && i !== 92 && i !== 39) {
|
||
|
|
warningAt("Unnecessary escapement.", line, character);
|
||
|
|
}
|
||
|
|
character += n;
|
||
|
|
c = String.fromCharCode(i);
|
||
|
|
}
|
||
|
|
j = 0;
|
||
|
|
for (;;) {
|
||
|
|
while (j >= s.length) {
|
||
|
|
j = 0;
|
||
|
|
if (xmode !== 'xml' || !nextLine()) {
|
||
|
|
errorAt("Unclosed string.", line, from);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
c = s.charAt(j);
|
||
|
|
if (c === x) {
|
||
|
|
character += 1;
|
||
|
|
s = s.substr(j + 1);
|
||
|
|
return it('(string)', r, x);
|
||
|
|
}
|
||
|
|
if (c < ' ') {
|
||
|
|
if (c === '\n' || c === '\r') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
warningAt("Control character in string: {a}.",
|
||
|
|
line, character + j, s.slice(0, j));
|
||
|
|
} else if (c === '<') {
|
||
|
|
if (option.adsafe && xmode === 'xml') {
|
||
|
|
warningAt("ADsafe string violation.",
|
||
|
|
line, character + j);
|
||
|
|
} else if (s.charAt(j + 1) === '/' && ((xmode && xmode !== 'CDATA') || option.adsafe)) {
|
||
|
|
warningAt("Expected '<\\/' and instead saw '</'.", line, character);
|
||
|
|
}
|
||
|
|
} else if (c === '\\') {
|
||
|
|
if (option.adsafe && xmode === 'xml') {
|
||
|
|
warningAt("ADsafe string violation.",
|
||
|
|
line, character + j);
|
||
|
|
}
|
||
|
|
j += 1;
|
||
|
|
character += 1;
|
||
|
|
c = s.charAt(j);
|
||
|
|
switch (c) {
|
||
|
|
case '\\':
|
||
|
|
case '\'':
|
||
|
|
case '"':
|
||
|
|
case '/':
|
||
|
|
break;
|
||
|
|
case 'b':
|
||
|
|
c = '\b';
|
||
|
|
break;
|
||
|
|
case 'f':
|
||
|
|
c = '\f';
|
||
|
|
break;
|
||
|
|
case 'n':
|
||
|
|
c = '\n';
|
||
|
|
break;
|
||
|
|
case 'r':
|
||
|
|
c = '\r';
|
||
|
|
break;
|
||
|
|
case 't':
|
||
|
|
c = '\t';
|
||
|
|
break;
|
||
|
|
case 'u':
|
||
|
|
esc(4);
|
||
|
|
break;
|
||
|
|
case 'v':
|
||
|
|
c = '\v';
|
||
|
|
break;
|
||
|
|
case 'x':
|
||
|
|
if (jsonmode) {
|
||
|
|
warningAt("Avoid \\x-.", line, character);
|
||
|
|
}
|
||
|
|
esc(2);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
warningAt("Bad escapement.", line, character);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
r += c;
|
||
|
|
character += 1;
|
||
|
|
j += 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for (;;) {
|
||
|
|
if (!s) {
|
||
|
|
return it(nextLine() ? '(endline)' : '(end)', '');
|
||
|
|
}
|
||
|
|
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));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// identifier
|
||
|
|
|
||
|
|
if (c.isAlpha() || c === '_' || c === '$') {
|
||
|
|
return it('(identifier)', t);
|
||
|
|
}
|
||
|
|
|
||
|
|
// number
|
||
|
|
|
||
|
|
if (c.isDigit()) {
|
||
|
|
if (!isFinite(Number(t))) {
|
||
|
|
warningAt("Bad number '{a}'.",
|
||
|
|
line, character, t);
|
||
|
|
}
|
||
|
|
if (s.substr(0, 1).isAlpha()) {
|
||
|
|
warningAt("Missing space after '{a}'.",
|
||
|
|
line, character, t);
|
||
|
|
}
|
||
|
|
if (c === '0') {
|
||
|
|
d = t.substr(1, 1);
|
||
|
|
if (d.isDigit()) {
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
|
||
|
|
// string
|
||
|
|
|
||
|
|
switch (t) {
|
||
|
|
case '"':
|
||
|
|
case "'":
|
||
|
|
return string(t);
|
||
|
|
|
||
|
|
// // comment
|
||
|
|
|
||
|
|
case '//':
|
||
|
|
if (src || (xmode && !(xmode === 'script' || xmode === 'CDATA'))) {
|
||
|
|
warningAt("Unexpected comment.", line, character);
|
||
|
|
}
|
||
|
|
if (option.adsafe && ax.test(s)) {
|
||
|
|
warningAt("ADsafe comment violation.", line, character);
|
||
|
|
}
|
||
|
|
s = '';
|
||
|
|
break;
|
||
|
|
|
||
|
|
// /* comment
|
||
|
|
|
||
|
|
case '/*':
|
||
|
|
if (src || (xmode && !(xmode === 'script' || xmode === 'CDATA'))) {
|
||
|
|
warningAt("Unexpected comment.", line, character);
|
||
|
|
}
|
||
|
|
if (option.adsafe && ax.test(s)) {
|
||
|
|
warningAt("ADsafe comment violation.", line, character);
|
||
|
|
}
|
||
|
|
for (;;) {
|
||
|
|
i = s.search(lx);
|
||
|
|
if (i >= 0) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (!nextLine()) {
|
||
|
|
errorAt("Unclosed comment.", line, character);
|
||
|
|
} else {
|
||
|
|
if (option.adsafe && ax.test(s)) {
|
||
|
|
warningAt("ADsafe comment violation.", line, character);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
character += i + 2;
|
||
|
|
if (s.substr(i, 1) === '/') {
|
||
|
|
errorAt("Nested comment.", line, character);
|
||
|
|
}
|
||
|
|
s = s.substr(i + 2);
|
||
|
|
break;
|
||
|
|
|
||
|
|
// /*global /*extern /*members /*jslint */
|
||
|
|
|
||
|
|
case '/*global':
|
||
|
|
case '/*extern':
|
||
|
|
case '/*members':
|
||
|
|
case '/*member':
|
||
|
|
case '/*jslint':
|
||
|
|
case '*/':
|
||
|
|
return {
|
||
|
|
value: t,
|
||
|
|
type: 'special',
|
||
|
|
line: line,
|
||
|
|
character: character,
|
||
|
|
from: from
|
||
|
|
};
|
||
|
|
|
||
|
|
case '':
|
||
|
|
break;
|
||
|
|
// /
|
||
|
|
case '/':
|
||
|
|
if (prereg) {
|
||
|
|
depth = 0;
|
||
|
|
captures = 0;
|
||
|
|
l = 0;
|
||
|
|
for (;;) {
|
||
|
|
b = true;
|
||
|
|
c = s.charAt(l);
|
||
|
|
l += 1;
|
||
|
|
switch (c) {
|
||
|
|
case '':
|
||
|
|
errorAt("Unclosed regular expression.", line, from);
|
||
|
|
return;
|
||
|
|
case '/':
|
||
|
|
if (depth > 0) {
|
||
|
|
warningAt("Unescaped '{a}'.", line, from + l, '/');
|
||
|
|
}
|
||
|
|
c = s.substr(0, l - 1);
|
||
|
|
q = {
|
||
|
|
g: true,
|
||
|
|
i: true,
|
||
|
|
m: true
|
||
|
|
};
|
||
|
|
while (q[s.charAt(l)] === true) {
|
||
|
|
q[s.charAt(l)] = false;
|
||
|
|
l += 1;
|
||
|
|
}
|
||
|
|
character += l;
|
||
|
|
s = s.substr(l);
|
||
|
|
return it('(regex)', c);
|
||
|
|
case '\\':
|
||
|
|
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 ')':
|
||
|
|
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 '[':
|
||
|
|
if (s.charAt(l) === '^') {
|
||
|
|
l += 1;
|
||
|
|
}
|
||
|
|
q = false;
|
||
|
|
klass: for (;;) {
|
||
|
|
c = s.charAt(l);
|
||
|
|
l += 1;
|
||
|
|
switch (c) {
|
||
|
|
case '[':
|
||
|
|
case '^':
|
||
|
|
warningAt("Unescaped '{a}'.", line, from + l, c);
|
||
|
|
q = true;
|
||
|
|
break;
|
||
|
|
case '-':
|
||
|
|
if (q) {
|
||
|
|
q = false;
|
||
|
|
} else {
|
||
|
|
warningAt("Unescaped '{a}'.", line, from + l, '-');
|
||
|
|
q = true;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case ']':
|
||
|
|
if (!q) {
|
||
|
|
warningAt("Unescaped '{a}'.", line, from + l - 1, '-');
|
||
|
|
}
|
||
|
|
break klass;
|
||
|
|
case '\\':
|
||
|
|
l += 1;
|
||
|
|
q = true;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
q = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case '.':
|
||
|
|
if (option.regexp) {
|
||
|
|
warningAt("Unexpected '{a}'.", line, from + l, c);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case ']':
|
||
|
|
case '?':
|
||
|
|
case '{':
|
||
|
|
case '}':
|
||
|
|
case '+':
|
||
|
|
case '*':
|
||
|
|
warningAt("Unescaped '{a}'.", line, from + l, c);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (b) {
|
||
|
|
switch (s.charAt(l)) {
|
||
|
|
case '?':
|
||
|
|
case '+':
|
||
|
|
case '*':
|
||
|
|
l += 1;
|
||
|
|
if (s.charAt(l) === '?') {
|
||
|
|
l += 1;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case '{':
|
||
|
|
l += 1;
|
||
|
|
c = s.charAt(l);
|
||
|
|
if (c < '0' || c > '9') {
|
||
|
|
warningAt("Expected a number and instead saw '{a}'.", line, from + l, c);
|
||
|
|
}
|
||
|
|
l += 1;
|
||
|
|
low = +c;
|
||
|
|
for (;;) {
|
||
|
|
c = s.charAt(l);
|
||
|
|
if (c < '0' || c > '9') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
l += 1;
|
||
|
|
low = +c + (low * 10);
|
||
|
|
}
|
||
|
|
high = low;
|
||
|
|
if (c === ',') {
|
||
|
|
l += 1;
|
||
|
|
high = Infinity;
|
||
|
|
c = s.charAt(l);
|
||
|
|
if (c >= '0' && c <= '9') {
|
||
|
|
l += 1;
|
||
|
|
high = +c;
|
||
|
|
for (;;) {
|
||
|
|
c = s.charAt(l);
|
||
|
|
if (c < '0' || c > '9') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
l += 1;
|
||
|
|
high = +c + (high * 10);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (s.charAt(l) !== '}') {
|
||
|
|
warningAt("Expected '{a}' and instead saw '{b}'.", line, from + l, '}', c);
|
||
|
|
} else {
|
||
|
|
l += 1;
|
||
|
|
}
|
||
|
|
if (s.charAt(l) === '?') {
|
||
|
|
l += 1;
|
||
|
|
}
|
||
|
|
if (low > high) {
|
||
|
|
warningAt("'{a}' should not be greater than '{b}'.", line, from + l, low, high);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
c = s.substr(0, l - 1);
|
||
|
|
character += l;
|
||
|
|
s = s.substr(l);
|
||
|
|
return it('(regex)', c);
|
||
|
|
}
|
||
|
|
return it('(punctuator)', t);
|
||
|
|
|
||
|
|
// punctuator
|
||
|
|
|
||
|
|
default:
|
||
|
|
return it('(punctuator)', t);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
// skip -- skip past the next occurrence of a particular string.
|
||
|
|
// If the argument is empty, skip to just before the next '<' character.
|
||
|
|
// This is used to ignore HTML content. Return false if it isn't found.
|
||
|
|
|
||
|
|
skip: function (p) {
|
||
|
|
var i, t = p;
|
||
|
|
if (nexttoken.id) {
|
||
|
|
if (!t) {
|
||
|
|
t = '';
|
||
|
|
if (nexttoken.id.substr(0, 1) === '<') {
|
||
|
|
lookahead.push(nexttoken);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
} else if (nexttoken.id.indexOf(t) >= 0) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
token = nexttoken;
|
||
|
|
nexttoken = syntax['(end)'];
|
||
|
|
for (;;) {
|
||
|
|
i = s.indexOf(t || '<');
|
||
|
|
if (i >= 0) {
|
||
|
|
character += i + t.length;
|
||
|
|
s = s.substr(i + t.length);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
if (!nextLine()) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}();
|
||
|
|
|
||
|
|
|
||
|
|
function addlabel(t, type) {
|
||
|
|
|
||
|
|
if (t === 'hasOwnProperty') {
|
||
|
|
error("'hasOwnProperty' is a really bad name.");
|
||
|
|
}
|
||
|
|
if (option.adsafe && scope === global) {
|
||
|
|
warning('ADsafe global: ' + t + '.', token);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Define t in the current function in the current scope.
|
||
|
|
|
||
|
|
if (funct.hasOwnProperty(t)) {
|
||
|
|
warning(funct[t] === true ?
|
||
|
|
"'{a}' was used before it was defined." :
|
||
|
|
"'{a}' is already defined.",
|
||
|
|
nexttoken, t);
|
||
|
|
}
|
||
|
|
scope[t] = funct;
|
||
|
|
funct[t] = type;
|
||
|
|
if (funct['(global)'] && implied.hasOwnProperty(t)) {
|
||
|
|
warning("'{a}' was used before it was defined.",
|
||
|
|
nexttoken, t);
|
||
|
|
delete implied[t];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function doOption() {
|
||
|
|
var b, obj, filter, o = nexttoken.value, t, v;
|
||
|
|
switch (o) {
|
||
|
|
case '*/':
|
||
|
|
error("Unbegun comment.");
|
||
|
|
break;
|
||
|
|
case '/*global':
|
||
|
|
case '/*extern':
|
||
|
|
if (option.adsafe) {
|
||
|
|
warning("ADsafe restriction.");
|
||
|
|
}
|
||
|
|
obj = globals;
|
||
|
|
break;
|
||
|
|
case '/*members':
|
||
|
|
case '/*member':
|
||
|
|
o = '/*members';
|
||
|
|
if (!membersOnly) {
|
||
|
|
membersOnly = {};
|
||
|
|
}
|
||
|
|
obj = membersOnly;
|
||
|
|
break;
|
||
|
|
case '/*jslint':
|
||
|
|
if (option.adsafe) {
|
||
|
|
warning("ADsafe restriction.");
|
||
|
|
}
|
||
|
|
obj = option;
|
||
|
|
filter = allOptions;
|
||
|
|
}
|
||
|
|
for (;;) {
|
||
|
|
t = lex.token();
|
||
|
|
if (t.id === ',') {
|
||
|
|
t = lex.token();
|
||
|
|
}
|
||
|
|
while (t.id === '(endline)') {
|
||
|
|
t = lex.token();
|
||
|
|
}
|
||
|
|
if (t.type === 'special' && t.value === '*/') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (t.type !== '(string)' && t.type !== '(identifier)' &&
|
||
|
|
o !== '/*members') {
|
||
|
|
error("Bad option.", t);
|
||
|
|
}
|
||
|
|
if (filter) {
|
||
|
|
if (filter[t.value] !== true) {
|
||
|
|
error("Bad option.", t);
|
||
|
|
}
|
||
|
|
v = lex.token();
|
||
|
|
if (v.id !== ':') {
|
||
|
|
error("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
t, ':', t.value);
|
||
|
|
}
|
||
|
|
v = lex.token();
|
||
|
|
if (v.value === 'true') {
|
||
|
|
b = true;
|
||
|
|
} else if (v.value === 'false') {
|
||
|
|
b = false;
|
||
|
|
} else {
|
||
|
|
error("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
t, 'true', t.value);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
b = true;
|
||
|
|
}
|
||
|
|
obj[t.value] = b;
|
||
|
|
}
|
||
|
|
if (filter) {
|
||
|
|
populateGlobals();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// 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;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
var badbreak = {
|
||
|
|
')': true,
|
||
|
|
']': true,
|
||
|
|
'++': true,
|
||
|
|
'--': true
|
||
|
|
};
|
||
|
|
|
||
|
|
// Produce the next token. It looks for programming errors.
|
||
|
|
|
||
|
|
function advance(id, t) {
|
||
|
|
var l;
|
||
|
|
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 + 1, nexttoken.value);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
warning("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
nexttoken, id, nexttoken.value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
prevtoken = token;
|
||
|
|
token = nexttoken;
|
||
|
|
for (;;) {
|
||
|
|
nexttoken = lookahead.shift() || lex.token();
|
||
|
|
if (nexttoken.type === 'special') {
|
||
|
|
doOption();
|
||
|
|
} else {
|
||
|
|
if (nexttoken.id === '<![') {
|
||
|
|
if (option.adsafe) {
|
||
|
|
error("ADsafe violation.", nexttoken);
|
||
|
|
}
|
||
|
|
if (xtype === 'html') {
|
||
|
|
error("Unexpected '{a}'.", nexttoken, '<![');
|
||
|
|
}
|
||
|
|
if (xmode === 'script') {
|
||
|
|
nexttoken = lex.token();
|
||
|
|
if (nexttoken.value !== 'CDATA') {
|
||
|
|
error("Missing '{a}'.", nexttoken, 'CDATA');
|
||
|
|
}
|
||
|
|
nexttoken = lex.token();
|
||
|
|
if (nexttoken.id !== '[') {
|
||
|
|
error("Missing '{a}'.", nexttoken, '[');
|
||
|
|
}
|
||
|
|
xmode = 'CDATA';
|
||
|
|
} else if (xmode === 'xml') {
|
||
|
|
lex.skip(']]>');
|
||
|
|
} else {
|
||
|
|
error("Unexpected '{a}'.", nexttoken, '<![');
|
||
|
|
}
|
||
|
|
} else if (nexttoken.id === ']]>') {
|
||
|
|
if (xmode === 'CDATA') {
|
||
|
|
xmode = 'script';
|
||
|
|
} else {
|
||
|
|
error("Unexpected '{a}'.", nexttoken, ']]>');
|
||
|
|
}
|
||
|
|
} else if (nexttoken.id !== '(endline)') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (xmode === '"' || xmode === "'") {
|
||
|
|
error("Missing '{a}'.", token, xmode);
|
||
|
|
}
|
||
|
|
l = !xmode && !option.laxbreak &&
|
||
|
|
(token.type === '(string)' || token.type === '(number)' ||
|
||
|
|
token.type === '(identifier)' || badbreak[token.id]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (l) {
|
||
|
|
switch (nexttoken.id) {
|
||
|
|
case '{':
|
||
|
|
case '}':
|
||
|
|
case ']':
|
||
|
|
break;
|
||
|
|
case ')':
|
||
|
|
switch (token.id) {
|
||
|
|
case ')':
|
||
|
|
case '}':
|
||
|
|
case ']':
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
warning("Line breaking error '{a}'.", token, ')');
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
warning("Line breaking error '{a}'.",
|
||
|
|
token, token.value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (xtype === 'widget' && xmode === 'script' && nexttoken.id) {
|
||
|
|
l = nexttoken.id.charAt(0);
|
||
|
|
if (l === '<' || l === '&') {
|
||
|
|
nexttoken.nud = nexttoken.led = null;
|
||
|
|
nexttoken.lbp = 0;
|
||
|
|
nexttoken.reach = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// This is the heart of JSLINT, the Pratt parser. In addition to parsing, it
|
||
|
|
// is looking for ad hoc lint patterns. We add to Pratt's model .fud, which is
|
||
|
|
// like nud except that it is only used on the first token of a statement.
|
||
|
|
// Having .fud makes it much easier to define JavaScript. I retained Pratt's
|
||
|
|
// nomenclature.
|
||
|
|
|
||
|
|
// .nud Null denotation
|
||
|
|
// .fud First null denotation
|
||
|
|
// .led Left denotation
|
||
|
|
// lbp Left binding power
|
||
|
|
// rbp Right binding power
|
||
|
|
|
||
|
|
// They are key to the parsing method called Top Down Operator Precedence.
|
||
|
|
|
||
|
|
function parse(rbp, initial) {
|
||
|
|
var left, o, p;
|
||
|
|
if (nexttoken.id === '(end)') {
|
||
|
|
error("Unexpected early end of program.", token);
|
||
|
|
}
|
||
|
|
advance();
|
||
|
|
if (option.adsafe) {
|
||
|
|
p = peek(0);
|
||
|
|
if (adsafe_allow[token.value] === true) {
|
||
|
|
if (nexttoken.id !== '.' || !p.identifier ||
|
||
|
|
peek(1).id !== '(') {
|
||
|
|
warning('ADsafe violation.', token);
|
||
|
|
}
|
||
|
|
} else if (token.value === 'Math') {
|
||
|
|
if (nexttoken.id !== '.' || !p.identifier ||
|
||
|
|
(math_member[p.value] !== true && peek(1).id !== '(')) {
|
||
|
|
warning('ADsafe violation.', token);
|
||
|
|
}
|
||
|
|
} else if (token.value === 'Number') {
|
||
|
|
if (nexttoken.id !== '.' || !p.identifier ||
|
||
|
|
number_member[p.value] !== true || peek(1).id === '(') {
|
||
|
|
warning('ADsafe violation.', token);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (initial) {
|
||
|
|
anonname = 'anonymous';
|
||
|
|
funct['(verb)'] = token.value;
|
||
|
|
}
|
||
|
|
if (initial === true && token.fud) {
|
||
|
|
left = token.fud();
|
||
|
|
} else {
|
||
|
|
if (token.nud) {
|
||
|
|
o = token.exps;
|
||
|
|
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) {
|
||
|
|
o = nexttoken.exps;
|
||
|
|
advance();
|
||
|
|
if (token.led) {
|
||
|
|
left = token.led(left);
|
||
|
|
} else {
|
||
|
|
error("Expected an operator and instead saw '{a}'.",
|
||
|
|
token, token.id);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (initial && !o) {
|
||
|
|
warning(
|
||
|
|
"Expected an assignment or function call and instead saw an expression.",
|
||
|
|
token);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!option.evil && left && left.value === 'eval') {
|
||
|
|
warning("eval is evil.", left);
|
||
|
|
}
|
||
|
|
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) {
|
||
|
|
warning("Unexpected space after '{a}'.",
|
||
|
|
nexttoken, left.value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function nospace(left, right) {
|
||
|
|
left = left || token;
|
||
|
|
right = right || nexttoken;
|
||
|
|
if (option.white) {
|
||
|
|
if (left.line === right.line) {
|
||
|
|
adjacent(left, right);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function nonadjacent(left, right) {
|
||
|
|
left = left || token;
|
||
|
|
right = right || nexttoken;
|
||
|
|
if (option.white) {
|
||
|
|
if (left.character === right.from) {
|
||
|
|
warning("Missing space after '{a}'.",
|
||
|
|
nexttoken, left.value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function indentation(bias) {
|
||
|
|
var i;
|
||
|
|
if (option.white && nexttoken.id !== '(end)') {
|
||
|
|
i = indent + (bias || 0);
|
||
|
|
if (nexttoken.from !== i) {
|
||
|
|
warning("Expected '{a}' to have an indentation of {b} instead of {c}.",
|
||
|
|
nexttoken, nexttoken.value, i, nexttoken.from);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function nolinebreak(t) {
|
||
|
|
if (t.line !== nexttoken.line) {
|
||
|
|
warning("Line breaking error '{a}'.", t, t.id);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// Parasitic 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 () {
|
||
|
|
if (option.plusplus && (this.id === '++' || this.id === '--')) {
|
||
|
|
warning("Unexpected use of '{a}'.", this, this.id);
|
||
|
|
}
|
||
|
|
parse(150);
|
||
|
|
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) {
|
||
|
|
return reserve(s, function () {
|
||
|
|
if (option.adsafe && this.id === 'this') {
|
||
|
|
warning("ADsafe violation.", this);
|
||
|
|
}
|
||
|
|
return this;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function infix(s, f, p) {
|
||
|
|
var x = symbol(s, p);
|
||
|
|
reserveName(x);
|
||
|
|
x.led = (typeof f === 'function') ? f : function (left) {
|
||
|
|
nonadjacent(prevtoken, token);
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
this.left = left;
|
||
|
|
this.right = parse(p);
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
return x;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function relation(s, f) {
|
||
|
|
var x = symbol(s, 100);
|
||
|
|
x.led = function (left) {
|
||
|
|
nonadjacent(prevtoken, token);
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
var right = parse(100);
|
||
|
|
if ((left && left.id === 'NaN') || (right && right.id === 'NaN')) {
|
||
|
|
warning("Use the isNaN function to compare with NaN.", this);
|
||
|
|
} else if (f) {
|
||
|
|
f.apply(this, [left, right]);
|
||
|
|
}
|
||
|
|
this.left = left;
|
||
|
|
this.right = right;
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
return x;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function isPoorRelation(node) {
|
||
|
|
return (node.type === '(number)' && !+node.value) ||
|
||
|
|
(node.type === '(string)' && !node.value) ||
|
||
|
|
node.type === 'true' ||
|
||
|
|
node.type === 'false' ||
|
||
|
|
node.type === 'undefined' ||
|
||
|
|
node.type === 'null';
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function assignop(s, f) {
|
||
|
|
symbol(s, 20).exps = true;
|
||
|
|
return infix(s, function (left) {
|
||
|
|
var l;
|
||
|
|
nonadjacent(prevtoken, token);
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
if (option.adsafe) {
|
||
|
|
l = left;
|
||
|
|
do {
|
||
|
|
if (adsafe_allow[l.value] === true) {
|
||
|
|
warning('ADsafe violation.', l);
|
||
|
|
}
|
||
|
|
l = l.left;
|
||
|
|
} while (l);
|
||
|
|
}
|
||
|
|
if (left) {
|
||
|
|
if (left.id === '.' || left.id === '[' ||
|
||
|
|
(left.identifier && !left.reserved)) {
|
||
|
|
parse(19);
|
||
|
|
return left;
|
||
|
|
}
|
||
|
|
if (left === syntax['function']) {
|
||
|
|
warning(
|
||
|
|
"Expected an identifier in an assignment and instead saw a function invocation.",
|
||
|
|
token);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
error("Bad assignment.", this);
|
||
|
|
}, 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);
|
||
|
|
}
|
||
|
|
nonadjacent(prevtoken, token);
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
this.left = left;
|
||
|
|
this.right = parse(p);
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
return x;
|
||
|
|
}
|
||
|
|
|
||
|
|
function bitwiseassignop(s) {
|
||
|
|
symbol(s, 20).exps = true;
|
||
|
|
return infix(s, function (left) {
|
||
|
|
if (option.bitwise) {
|
||
|
|
warning("Unexpected use of '{a}'.", this, this.id);
|
||
|
|
}
|
||
|
|
nonadjacent(prevtoken, token);
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
if (left) {
|
||
|
|
if (left.id === '.' || left.id === '[' ||
|
||
|
|
(left.identifier && !left.reserved)) {
|
||
|
|
parse(19);
|
||
|
|
return left;
|
||
|
|
}
|
||
|
|
if (left === syntax['function']) {
|
||
|
|
warning(
|
||
|
|
"Expected an identifier in an assignment, and instead saw a function invocation.",
|
||
|
|
token);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
error("Bad assignment.", this);
|
||
|
|
}, 20);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function suffix(s, f) {
|
||
|
|
var x = symbol(s, 150);
|
||
|
|
x.led = function (left) {
|
||
|
|
if (option.plusplus) {
|
||
|
|
warning("Unexpected use of '{a}'.", this, this.id);
|
||
|
|
}
|
||
|
|
this.left = left;
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
return x;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function optionalidentifier() {
|
||
|
|
if (nexttoken.reserved) {
|
||
|
|
warning("Expected an identifier and instead saw '{a}' (a reserved word).",
|
||
|
|
nexttoken, nexttoken.id);
|
||
|
|
}
|
||
|
|
if (nexttoken.identifier) {
|
||
|
|
advance();
|
||
|
|
return token.value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function identifier() {
|
||
|
|
var i = optionalidentifier();
|
||
|
|
if (i) {
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
if (token.id === 'function' && nexttoken.id === '(') {
|
||
|
|
warning("Missing name in function statement.");
|
||
|
|
} else {
|
||
|
|
error("Expected an identifier and instead saw '{a}'.",
|
||
|
|
nexttoken, nexttoken.value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function reachable(s) {
|
||
|
|
var i = 0, t;
|
||
|
|
if (nexttoken.id !== ';' || noreach) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
for (;;) {
|
||
|
|
t = peek(i);
|
||
|
|
if (t.reach) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (t.id !== '(endline)') {
|
||
|
|
if (t.id === 'function') {
|
||
|
|
warning(
|
||
|
|
"Inner functions should be listed at the top of the outer function.", t);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
warning("Unreachable '{a}' after '{b}'.", t, t.value, s);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
i += 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function statement(noindent) {
|
||
|
|
var i = indent, r, s = scope, t = nexttoken;
|
||
|
|
|
||
|
|
// We don't like the empty statement.
|
||
|
|
|
||
|
|
if (t.id === ';') {
|
||
|
|
warning("Unnecessary semicolon.", t);
|
||
|
|
advance(';');
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Is this a labelled statement?
|
||
|
|
|
||
|
|
if (t.identifier && !t.reserved && peek().id === ':') {
|
||
|
|
advance();
|
||
|
|
advance(':');
|
||
|
|
scope = object(s);
|
||
|
|
addlabel(t.value, 'label');
|
||
|
|
if (!nexttoken.labelled) {
|
||
|
|
warning("Label '{a}' on {b} statement.",
|
||
|
|
nexttoken, t.value, nexttoken.value);
|
||
|
|
}
|
||
|
|
if (jx.test(t.value + ':')) {
|
||
|
|
warning("Label '{a}' looks like a javascript url.",
|
||
|
|
t, t.value);
|
||
|
|
}
|
||
|
|
nexttoken.label = t.value;
|
||
|
|
t = nexttoken;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Parse the statement.
|
||
|
|
|
||
|
|
if (!noindent) {
|
||
|
|
indentation();
|
||
|
|
}
|
||
|
|
r = parse(0, true);
|
||
|
|
|
||
|
|
// Look for the final semicolon.
|
||
|
|
|
||
|
|
if (!t.block) {
|
||
|
|
if (nexttoken.id !== ';') {
|
||
|
|
warningAt("Missing semicolon.", token.line,
|
||
|
|
token.from + token.value.length);
|
||
|
|
} else {
|
||
|
|
adjacent(token, nexttoken);
|
||
|
|
advance(';');
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Restore the indentation.
|
||
|
|
|
||
|
|
indent = i;
|
||
|
|
scope = s;
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function statements() {
|
||
|
|
var a = [];
|
||
|
|
while (!nexttoken.reach && nexttoken.id !== '(end)') {
|
||
|
|
if (nexttoken.id === ';') {
|
||
|
|
warning("Unnecessary semicolon.");
|
||
|
|
advance(';');
|
||
|
|
} else {
|
||
|
|
a.push(statement());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return a;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function block(f) {
|
||
|
|
var a, b = inblock, s = scope;
|
||
|
|
inblock = f;
|
||
|
|
if (f) {
|
||
|
|
scope = object(scope);
|
||
|
|
}
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
var t = nexttoken;
|
||
|
|
if (nexttoken.id === '{') {
|
||
|
|
advance('{');
|
||
|
|
if (nexttoken.id !== '}' || token.line !== nexttoken.line) {
|
||
|
|
indent += 4;
|
||
|
|
if (!f && nexttoken.from === indent + 4) {
|
||
|
|
indent += 4;
|
||
|
|
}
|
||
|
|
a = statements();
|
||
|
|
indent -= 4;
|
||
|
|
indentation();
|
||
|
|
}
|
||
|
|
advance('}', t);
|
||
|
|
} else {
|
||
|
|
warning("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
nexttoken, '{', nexttoken.value);
|
||
|
|
noreach = true;
|
||
|
|
a = [statement()];
|
||
|
|
noreach = false;
|
||
|
|
}
|
||
|
|
funct['(verb)'] = null;
|
||
|
|
scope = s;
|
||
|
|
inblock = b;
|
||
|
|
return a;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// An identity function, used by string and number tokens.
|
||
|
|
|
||
|
|
function idValue() {
|
||
|
|
return this;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function countMember(m) {
|
||
|
|
if (membersOnly && membersOnly[m] !== true) {
|
||
|
|
warning("Unexpected /*member '{a}'.", nexttoken, m);
|
||
|
|
}
|
||
|
|
if (typeof member[m] === 'number') {
|
||
|
|
member[m] += 1;
|
||
|
|
} else {
|
||
|
|
member[m] = 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function note_implied(token) {
|
||
|
|
var name = token.value, line = token.line + 1, a = implied[name];
|
||
|
|
if (!a) {
|
||
|
|
a = [line];
|
||
|
|
implied[name] = a;
|
||
|
|
} else if (a[a.length - 1] !== line) {
|
||
|
|
a.push(line);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// XML types. Currently we support html and widget.
|
||
|
|
|
||
|
|
var xmltype = {
|
||
|
|
html: {
|
||
|
|
doBegin: function (n) {
|
||
|
|
xtype = 'html';
|
||
|
|
option.browser = true;
|
||
|
|
populateGlobals();
|
||
|
|
},
|
||
|
|
doTagName: function (n, p) {
|
||
|
|
var i, t = xmltype.html.tag[n], x;
|
||
|
|
src = false;
|
||
|
|
if (!t) {
|
||
|
|
error("Unrecognized tag '<{a}>'.",
|
||
|
|
nexttoken,
|
||
|
|
n === n.toLowerCase() ? n :
|
||
|
|
n + ' (capitalization error)');
|
||
|
|
}
|
||
|
|
x = t.parent;
|
||
|
|
if (!option.fragment || stack.length !== 1 || !stack[0].fragment) {
|
||
|
|
if (x) {
|
||
|
|
if (x.indexOf(' ' + p + ' ') < 0) {
|
||
|
|
error("A '<{a}>' must be within '<{b}>'.",
|
||
|
|
token, n, x);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
i = stack.length;
|
||
|
|
do {
|
||
|
|
if (i <= 0) {
|
||
|
|
error("A '<{a}>' must be within '<{b}>'.",
|
||
|
|
token, n, 'body');
|
||
|
|
}
|
||
|
|
i -= 1;
|
||
|
|
} while (stack[i].name !== 'body');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return t.empty;
|
||
|
|
},
|
||
|
|
doAttribute: function (n, a) {
|
||
|
|
if (!a) {
|
||
|
|
warning("Missing attribute name.", token);
|
||
|
|
}
|
||
|
|
a = a.toLowerCase();
|
||
|
|
if (n === 'script') {
|
||
|
|
if (a === 'src') {
|
||
|
|
src = true;
|
||
|
|
return 'href';
|
||
|
|
} else if (a === 'language') {
|
||
|
|
warning("The 'language' attribute is deprecated.",
|
||
|
|
token);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
} else if (n === 'style') {
|
||
|
|
if (a === 'type' && option.adsafe) {
|
||
|
|
warning("Don't bother with 'type'.", token);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (href[a] === true) {
|
||
|
|
return 'href';
|
||
|
|
}
|
||
|
|
if (a.slice(0, 2) === 'on') {
|
||
|
|
if (!option.on) {
|
||
|
|
warning("Avoid HTML event handlers.");
|
||
|
|
}
|
||
|
|
return 'script';
|
||
|
|
} else {
|
||
|
|
return 'value';
|
||
|
|
}
|
||
|
|
},
|
||
|
|
doIt: function (n) {
|
||
|
|
return n === 'script' ? 'script' : n !== 'html' &&
|
||
|
|
xmltype.html.tag[n].special && 'special';
|
||
|
|
},
|
||
|
|
tag: {
|
||
|
|
a: {},
|
||
|
|
abbr: {},
|
||
|
|
acronym: {},
|
||
|
|
address: {},
|
||
|
|
applet: {},
|
||
|
|
area: {empty: true, parent: ' map '},
|
||
|
|
b: {},
|
||
|
|
base: {empty: true, parent: ' head '},
|
||
|
|
bdo: {},
|
||
|
|
big: {},
|
||
|
|
blockquote: {},
|
||
|
|
body: {parent: ' html noframes '},
|
||
|
|
br: {empty: true},
|
||
|
|
button: {},
|
||
|
|
canvas: {parent: ' body p div th td '},
|
||
|
|
caption: {parent: ' table '},
|
||
|
|
center: {},
|
||
|
|
cite: {},
|
||
|
|
code: {},
|
||
|
|
col: {empty: true, parent: ' table colgroup '},
|
||
|
|
colgroup: {parent: ' table '},
|
||
|
|
dd: {parent: ' dl '},
|
||
|
|
del: {},
|
||
|
|
dfn: {},
|
||
|
|
dir: {},
|
||
|
|
div: {},
|
||
|
|
dl: {},
|
||
|
|
dt: {parent: ' dl '},
|
||
|
|
em: {},
|
||
|
|
embed: {},
|
||
|
|
fieldset: {},
|
||
|
|
font: {},
|
||
|
|
form: {},
|
||
|
|
frame: {empty: true, parent: ' frameset '},
|
||
|
|
frameset: {parent: ' html frameset '},
|
||
|
|
h1: {},
|
||
|
|
h2: {},
|
||
|
|
h3: {},
|
||
|
|
h4: {},
|
||
|
|
h5: {},
|
||
|
|
h6: {},
|
||
|
|
head: {parent: ' html '},
|
||
|
|
html: {},
|
||
|
|
hr: {empty: true},
|
||
|
|
i: {},
|
||
|
|
iframe: {},
|
||
|
|
img: {empty: true},
|
||
|
|
input: {empty: true},
|
||
|
|
ins: {},
|
||
|
|
kbd: {},
|
||
|
|
label: {},
|
||
|
|
legend: {parent: ' fieldset '},
|
||
|
|
li: {parent: ' dir menu ol ul '},
|
||
|
|
link: {empty: true, parent: ' head '},
|
||
|
|
map: {},
|
||
|
|
menu: {},
|
||
|
|
meta: {empty: true, parent: ' head noframes noscript '},
|
||
|
|
noframes: {parent: ' html body '},
|
||
|
|
noscript: {parent: ' body head noframes '},
|
||
|
|
object: {},
|
||
|
|
ol: {},
|
||
|
|
optgroup: {parent: ' select '},
|
||
|
|
option: {parent: ' optgroup select '},
|
||
|
|
p: {},
|
||
|
|
param: {empty: true, parent: ' applet object '},
|
||
|
|
pre: {},
|
||
|
|
q: {},
|
||
|
|
samp: {},
|
||
|
|
script: {parent: ' body div frame head iframe p pre span '},
|
||
|
|
select: {},
|
||
|
|
small: {},
|
||
|
|
span: {},
|
||
|
|
strong: {},
|
||
|
|
style: {parent: ' head ', special: true},
|
||
|
|
sub: {},
|
||
|
|
sup: {},
|
||
|
|
table: {},
|
||
|
|
tbody: {parent: ' table '},
|
||
|
|
td: {parent: ' tr '},
|
||
|
|
textarea: {},
|
||
|
|
tfoot: {parent: ' table '},
|
||
|
|
th: {parent: ' tr '},
|
||
|
|
thead: {parent: ' table '},
|
||
|
|
title: {parent: ' head '},
|
||
|
|
tr: {parent: ' table tbody thead tfoot '},
|
||
|
|
tt: {},
|
||
|
|
u: {},
|
||
|
|
ul: {},
|
||
|
|
'var': {}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
widget: {
|
||
|
|
doBegin: function (n) {
|
||
|
|
xtype = 'widget';
|
||
|
|
option.widget = true;
|
||
|
|
option.cap = true;
|
||
|
|
populateGlobals();
|
||
|
|
},
|
||
|
|
doTagName: function (n, p) {
|
||
|
|
var t = xmltype.widget.tag[n];
|
||
|
|
if (!t) {
|
||
|
|
error("Unrecognized tag '<{a}>'.", nexttoken, n);
|
||
|
|
}
|
||
|
|
var x = t.parent;
|
||
|
|
if (x.indexOf(' ' + p + ' ') < 0) {
|
||
|
|
error("A '<{a}>' must be within '<{b}>'.",
|
||
|
|
token, n, x);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
doAttribute: function (n, a) {
|
||
|
|
var t = xmltype.widget.tag[a];
|
||
|
|
if (!t) {
|
||
|
|
error("Unrecognized attribute '<{a} {b}>'.", nexttoken, n, a);
|
||
|
|
}
|
||
|
|
var x = t.parent;
|
||
|
|
if (x.indexOf(' ' + n + ' ') < 0) {
|
||
|
|
error("Attribute '{a}' does not belong in '<{b}>'.", nexttoken, a, n);
|
||
|
|
}
|
||
|
|
return t.script ?
|
||
|
|
'script' :
|
||
|
|
a === 'name' && n !== 'setting' ?
|
||
|
|
'define' : 'string';
|
||
|
|
},
|
||
|
|
doIt: function (n) {
|
||
|
|
var x = xmltype.widget.tag[n];
|
||
|
|
return x && x.script && 'script';
|
||
|
|
},
|
||
|
|
tag: {
|
||
|
|
"about-box": {parent: ' widget '},
|
||
|
|
"about-image": {parent: ' about-box '},
|
||
|
|
"about-text": {parent: ' about-box '},
|
||
|
|
"about-version": {parent: ' about-box '},
|
||
|
|
action: {parent: ' widget ', script: true},
|
||
|
|
alignment: {parent: ' canvas frame image scrollbar text textarea window '},
|
||
|
|
anchorstyle: {parent: ' text '},
|
||
|
|
author: {parent: ' widget '},
|
||
|
|
autohide: {parent: ' scrollbar '},
|
||
|
|
beget: {parent: ' canvas frame image scrollbar text window '},
|
||
|
|
bgcolor: {parent: ' text textarea '},
|
||
|
|
bgcolour: {parent: ' text textarea '},
|
||
|
|
bgopacity: {parent: ' text textarea '},
|
||
|
|
canvas: {parent: ' frame window '},
|
||
|
|
charset: {parent: ' script '},
|
||
|
|
checked: {parent: ' image menuitem '},
|
||
|
|
cliprect: {parent: ' image '},
|
||
|
|
color: {parent: ' about-text about-version shadow text textarea '},
|
||
|
|
colorize: {parent: ' image '},
|
||
|
|
colour: {parent: ' about-text about-version shadow text textarea '},
|
||
|
|
columns: {parent: ' textarea '},
|
||
|
|
company: {parent: ' widget '},
|
||
|
|
contextmenuitems: {parent: ' canvas frame image scrollbar text textarea window '},
|
||
|
|
copyright: {parent: ' widget '},
|
||
|
|
data: {parent: ' about-text about-version text textarea '},
|
||
|
|
debug: {parent: ' widget '},
|
||
|
|
defaultvalue: {parent: ' preference '},
|
||
|
|
defaulttracking: {parent: ' widget '},
|
||
|
|
description: {parent: ' preference '},
|
||
|
|
directory: {parent: ' preference '},
|
||
|
|
editable: {parent: ' textarea '},
|
||
|
|
enabled: {parent: ' menuitem '},
|
||
|
|
extension: {parent: ' preference '},
|
||
|
|
file: {parent: ' action preference '},
|
||
|
|
fillmode: {parent: ' image '},
|
||
|
|
font: {parent: ' about-text about-version text textarea '},
|
||
|
|
fontstyle: {parent: ' textarea '},
|
||
|
|
frame: {parent: ' frame window '},
|
||
|
|
group: {parent: ' preference '},
|
||
|
|
halign: {parent: ' canvas frame image scrollbar text textarea '},
|
||
|
|
handlelinks: {parent: ' textarea '},
|
||
|
|
height: {parent: ' canvas frame image scrollbar text textarea window '},
|
||
|
|
hidden: {parent: ' preference '},
|
||
|
|
hlinesize: {parent: ' frame '},
|
||
|
|
hoffset: {parent: ' about-text about-version canvas frame image scrollbar shadow text textarea window '},
|
||
|
|
hotkey: {parent: ' widget '},
|
||
|
|
hregistrationpoint: {parent: ' canvas frame image scrollbar text '},
|
||
|
|
hscrollbar: {parent: ' frame '},
|
||
|
|
hsladjustment: {parent: ' image '},
|
||
|
|
hsltinting: {parent: ' image '},
|
||
|
|
icon: {parent: ' preferencegroup '},
|
||
|
|
id: {parent: ' canvas frame hotkey image preference text textarea timer scrollbar widget window '},
|
||
|
|
image: {parent: ' about-box frame window widget '},
|
||
|
|
interval: {parent: ' action timer '},
|
||
|
|
key: {parent: ' hotkey '},
|
||
|
|
kind: {parent: ' preference '},
|
||
|
|
level: {parent: ' window '},
|
||
|
|
lines: {parent: ' textarea '},
|
||
|
|
loadingsrc: {parent: ' image '},
|
||
|
|
locked: {parent: ' window '},
|
||
|
|
max: {parent: ' scrollbar '},
|
||
|
|
maxlength: {parent: ' preference '},
|
||
|
|
menuitem: {parent: ' contextmenuitems '},
|
||
|
|
min: {parent: ' scrollbar '},
|
||
|
|
minimumversion: {parent: ' widget '},
|
||
|
|
minlength: {parent: ' preference '},
|
||
|
|
missingsrc: {parent: ' image '},
|
||
|
|
modifier: {parent: ' hotkey '},
|
||
|
|
name: {parent: ' canvas frame hotkey image preference preferencegroup scrollbar setting text textarea timer widget window '},
|
||
|
|
notsaved: {parent: ' preference '},
|
||
|
|
onclick: {parent: ' canvas frame image scrollbar text textarea ', script: true},
|
||
|
|
oncontextmenu: {parent: ' canvas frame image scrollbar text textarea window ', script: true},
|
||
|
|
ondragdrop: {parent: ' canvas frame image scrollbar text textarea ', script: true},
|
||
|
|
ondragenter: {parent: ' canvas frame image scrollbar text textarea ', script: true},
|
||
|
|
ondragexit: {parent: ' canvas frame image scrollbar text textarea ', script: true},
|
||
|
|
onfirstdisplay: {parent: ' window ', script: true},
|
||
|
|
ongainfocus: {parent: ' textarea window ', script: true},
|
||
|
|
onkeydown: {parent: ' hotkey text textarea window ', script: true},
|
||
|
|
onkeypress: {parent: ' textarea window ', script: true},
|
||
|
|
onkeyup: {parent: ' hotkey text textarea window ', script: true},
|
||
|
|
onimageloaded: {parent: ' image ', script: true},
|
||
|
|
onlosefocus: {parent: ' textarea window ', script: true},
|
||
|
|
onmousedown: {parent: ' canvas frame image scrollbar text textarea window ', script: true},
|
||
|
|
onmousedrag: {parent: ' canvas frame image scrollbar text textarea window ', script: true},
|
||
|
|
onmouseenter: {parent: ' canvas frame image scrollbar text textarea window ', script: true},
|
||
|
|
onmouseexit: {parent: ' canvas frame image scrollbar text textarea window ', script: true},
|
||
|
|
onmousemove: {parent: ' canvas frame image scrollbar text textarea window ', script: true},
|
||
|
|
onmouseup: {parent: ' canvas frame image scrollbar text textarea window ', script: true},
|
||
|
|
onmousewheel: {parent: ' frame ', script: true},
|
||
|
|
onmulticlick: {parent: ' canvas frame image scrollbar text textarea window ', script: true},
|
||
|
|
onselect: {parent: ' menuitem ', script: true},
|
||
|
|
ontextinput: {parent: ' window ', script: true},
|
||
|
|
ontimerfired: {parent: ' timer ', script: true},
|
||
|
|
onvaluechanged: {parent: ' scrollbar ', script: true},
|
||
|
|
opacity: {parent: ' canvas frame image scrollbar shadow text textarea window '},
|
||
|
|
option: {parent: ' preference widget '},
|
||
|
|
optionvalue: {parent: ' preference '},
|
||
|
|
order: {parent: ' preferencegroup '},
|
||
|
|
orientation: {parent: ' scrollbar '},
|
||
|
|
pagesize: {parent: ' scrollbar '},
|
||
|
|
preference: {parent: ' widget '},
|
||
|
|
preferencegroup: {parent: ' widget '},
|
||
|
|
remoteasync: {parent: ' image '},
|
||
|
|
requiredplatform: {parent: ' widget '},
|
||
|
|
root: {parent: ' window '},
|
||
|
|
rotation: {parent: ' canvas frame image scrollbar text '},
|
||
|
|
script: {parent: ' widget ', script: true},
|
||
|
|
scrollbar: {parent: ' frame text textarea window '},
|
||
|
|
scrolling: {parent: ' text '},
|
||
|
|
scrollx: {parent: ' frame '},
|
||
|
|
scrolly: {parent: ' frame '},
|
||
|
|
secure: {parent: ' preference textarea '},
|
||
|
|
setting: {parent: ' settings '},
|
||
|
|
settings: {parent: ' widget '},
|
||
|
|
shadow: {parent: ' about-text about-version text window '},
|
||
|
|
size: {parent: ' about-text about-version text textarea '},
|
||
|
|
spellcheck: {parent: ' textarea '},
|
||
|
|
src: {parent: ' image script '},
|
||
|
|
srcheight: {parent: ' image '},
|
||
|
|
srcwidth: {parent: ' image '},
|
||
|
|
style: {parent: ' about-text about-version canvas frame image preference scrollbar text textarea window '},
|
||
|
|
subviews: {parent: ' frame '},
|
||
|
|
superview: {parent: ' canvas frame image scrollbar text textarea '},
|
||
|
|
text: {parent: ' frame text textarea window '},
|
||
|
|
textarea: {parent: ' frame window '},
|
||
|
|
timer: {parent: ' widget '},
|
||
|
|
thumbcolor: {parent: ' scrollbar textarea '},
|
||
|
|
ticking: {parent: ' timer '},
|
||
|
|
ticks: {parent: ' preference '},
|
||
|
|
ticklabel: {parent: ' preference '},
|
||
|
|
tileorigin: {parent: ' image '},
|
||
|
|
title: {parent: ' menuitem preference preferencegroup window '},
|
||
|
|
tooltip: {parent: ' frame image text textarea '},
|
||
|
|
tracking: {parent: ' canvas image '},
|
||
|
|
trigger: {parent: ' action '},
|
||
|
|
truncation: {parent: ' text '},
|
||
|
|
type: {parent: ' preference '},
|
||
|
|
url: {parent: ' about-box about-text about-version '},
|
||
|
|
usefileicon: {parent: ' image '},
|
||
|
|
valign: {parent: ' canvas frame image scrollbar text textarea '},
|
||
|
|
value: {parent: ' preference scrollbar setting '},
|
||
|
|
version: {parent: ' widget '},
|
||
|
|
visible: {parent: ' canvas frame image scrollbar text textarea window '},
|
||
|
|
vlinesize: {parent: ' frame '},
|
||
|
|
voffset: {parent: ' about-text about-version canvas frame image scrollbar shadow text textarea window '},
|
||
|
|
vregistrationpoint: {parent: ' canvas frame image scrollbar text '},
|
||
|
|
vscrollbar: {parent: ' frame '},
|
||
|
|
width: {parent: ' canvas frame image scrollbar text textarea window '},
|
||
|
|
window: {parent: ' canvas frame image scrollbar text textarea widget '},
|
||
|
|
wrap: {parent: ' text '},
|
||
|
|
zorder: {parent: ' canvas frame image scrollbar text textarea window '}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
function xmlword(tag) {
|
||
|
|
var w = nexttoken.value;
|
||
|
|
if (!nexttoken.identifier) {
|
||
|
|
if (nexttoken.id === '<') {
|
||
|
|
if (tag) {
|
||
|
|
error("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
token, '<', '<');
|
||
|
|
} else {
|
||
|
|
error("Missing '{a}'.", token, '>');
|
||
|
|
}
|
||
|
|
} else if (nexttoken.id === '(end)') {
|
||
|
|
error("Bad structure.");
|
||
|
|
} else {
|
||
|
|
warning("Missing quote.", token);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
advance();
|
||
|
|
while (nexttoken.id === '-' || nexttoken.id === ':') {
|
||
|
|
w += nexttoken.id;
|
||
|
|
advance();
|
||
|
|
if (!nexttoken.identifier) {
|
||
|
|
error("Bad name '{a}'.", nexttoken, w + nexttoken.value);
|
||
|
|
}
|
||
|
|
w += nexttoken.value;
|
||
|
|
advance();
|
||
|
|
}
|
||
|
|
if (option.cap) {
|
||
|
|
w = w.toLowerCase();
|
||
|
|
}
|
||
|
|
return w;
|
||
|
|
}
|
||
|
|
|
||
|
|
function closetag(n) {
|
||
|
|
return '</' + n + '>';
|
||
|
|
}
|
||
|
|
|
||
|
|
function xml() {
|
||
|
|
var a, e, n, q, t, wmode;
|
||
|
|
xmode = 'xml';
|
||
|
|
stack = null;
|
||
|
|
for (;;) {
|
||
|
|
switch (nexttoken.value) {
|
||
|
|
case '<':
|
||
|
|
if (!stack) {
|
||
|
|
stack = [];
|
||
|
|
}
|
||
|
|
advance('<');
|
||
|
|
t = nexttoken;
|
||
|
|
n = xmlword(true);
|
||
|
|
t.name = n;
|
||
|
|
if (!xtype) {
|
||
|
|
if (option.fragment && option.adsafe &&
|
||
|
|
n !== 'div' && n !== 'iframe') {
|
||
|
|
error("ADsafe HTML fragment violation.", token);
|
||
|
|
}
|
||
|
|
if (xmltype[n]) {
|
||
|
|
xmltype[n].doBegin();
|
||
|
|
n = xtype;
|
||
|
|
e = false;
|
||
|
|
} else {
|
||
|
|
if (option.fragment) {
|
||
|
|
xmltype.html.doBegin();
|
||
|
|
} else {
|
||
|
|
error("Unrecognized tag '<{a}>'.", nexttoken, n);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (stack.length === 0) {
|
||
|
|
error("What the hell is this?");
|
||
|
|
}
|
||
|
|
e = xmltype[xtype].doTagName(n,
|
||
|
|
stack[stack.length - 1].name);
|
||
|
|
}
|
||
|
|
t.type = n;
|
||
|
|
for (;;) {
|
||
|
|
if (nexttoken.id === '/') {
|
||
|
|
advance('/');
|
||
|
|
if (nexttoken.id !== '>') {
|
||
|
|
warning("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
nexttoken, '>', nexttoken.value);
|
||
|
|
}
|
||
|
|
e = true;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (nexttoken.id && nexttoken.id.substr(0, 1) === '>') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
a = xmlword();
|
||
|
|
switch (xmltype[xtype].doAttribute(n, a)) {
|
||
|
|
case 'script':
|
||
|
|
xmode = 'string';
|
||
|
|
advance('=');
|
||
|
|
q = nexttoken.id;
|
||
|
|
if (q !== '"' && q !== "'") {
|
||
|
|
error("Missing quote.");
|
||
|
|
}
|
||
|
|
xmode = q;
|
||
|
|
wmode = option.white;
|
||
|
|
option.white = false;
|
||
|
|
advance(q);
|
||
|
|
statements();
|
||
|
|
option.white = wmode;
|
||
|
|
if (nexttoken.id !== q) {
|
||
|
|
error("Missing close quote on script attribute.");
|
||
|
|
}
|
||
|
|
xmode = 'xml';
|
||
|
|
advance(q);
|
||
|
|
break;
|
||
|
|
case 'value':
|
||
|
|
advance('=');
|
||
|
|
if (!nexttoken.identifier &&
|
||
|
|
nexttoken.type !== '(string)' &&
|
||
|
|
nexttoken.type !== '(number)') {
|
||
|
|
error("Bad value '{a}'.",
|
||
|
|
nexttoken, nexttoken.value);
|
||
|
|
}
|
||
|
|
advance();
|
||
|
|
break;
|
||
|
|
case 'string':
|
||
|
|
advance('=');
|
||
|
|
if (nexttoken.type !== '(string)') {
|
||
|
|
error("Bad value '{a}'.",
|
||
|
|
nexttoken, nexttoken.value);
|
||
|
|
}
|
||
|
|
advance();
|
||
|
|
break;
|
||
|
|
case 'href':
|
||
|
|
advance('=');
|
||
|
|
if (nexttoken.type !== '(string)') {
|
||
|
|
error("Bad value '{a}'.",
|
||
|
|
nexttoken, nexttoken.value);
|
||
|
|
}
|
||
|
|
if (option.adsafe && ux.test(nexttoken.value)) {
|
||
|
|
error("ADsafe URL violation.");
|
||
|
|
}
|
||
|
|
advance();
|
||
|
|
break;
|
||
|
|
case 'define':
|
||
|
|
advance('=');
|
||
|
|
if (nexttoken.type !== '(string)') {
|
||
|
|
error("Bad value '{a}'.",
|
||
|
|
nexttoken, nexttoken.value);
|
||
|
|
}
|
||
|
|
addlabel(nexttoken.value, 'var');
|
||
|
|
advance();
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
if (nexttoken.id === '=') {
|
||
|
|
advance('=');
|
||
|
|
if (!nexttoken.identifier &&
|
||
|
|
nexttoken.type !== '(string)' &&
|
||
|
|
nexttoken.type !== '(number)') {
|
||
|
|
error("Bad value '{a}'.",
|
||
|
|
nexttoken, nexttoken.value);
|
||
|
|
}
|
||
|
|
advance();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
switch (xmltype[xtype].doIt(n)) {
|
||
|
|
case 'script':
|
||
|
|
xmode = 'script';
|
||
|
|
advance('>');
|
||
|
|
indent = nexttoken.from;
|
||
|
|
if (src) {
|
||
|
|
if (option.fragment && option.adsafe) {
|
||
|
|
warning("ADsafe script violation.", token);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
statements();
|
||
|
|
}
|
||
|
|
if (nexttoken.id !== '</' && nexttoken.id !== '(end)') {
|
||
|
|
warning("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
nexttoken, '<\/script>', nexttoken.value);
|
||
|
|
}
|
||
|
|
xmode = 'xml';
|
||
|
|
break;
|
||
|
|
case 'special':
|
||
|
|
e = true;
|
||
|
|
n = closetag(t.name);
|
||
|
|
if (!lex.skip(n)) {
|
||
|
|
error("Missing '{a}'.", t, n);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
lex.skip('>');
|
||
|
|
}
|
||
|
|
if (!e) {
|
||
|
|
stack.push(t);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case '</':
|
||
|
|
advance('</');
|
||
|
|
n = xmlword(true);
|
||
|
|
t = stack.pop();
|
||
|
|
if (!t) {
|
||
|
|
error("Unexpected '{a}'.", nexttoken, closetag(n));
|
||
|
|
}
|
||
|
|
if (t.name !== n) {
|
||
|
|
error("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
nexttoken, closetag(t.name), closetag(n));
|
||
|
|
}
|
||
|
|
if (nexttoken.id !== '>') {
|
||
|
|
error("Missing '{a}'.", nexttoken, '>');
|
||
|
|
}
|
||
|
|
if (stack.length > 0) {
|
||
|
|
lex.skip('>');
|
||
|
|
} else {
|
||
|
|
advance('>');
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case '<!':
|
||
|
|
if (option.adsafe) {
|
||
|
|
error("ADsafe HTML violation.");
|
||
|
|
}
|
||
|
|
for (;;) {
|
||
|
|
advance();
|
||
|
|
if (nexttoken.id === '>') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (nexttoken.id === '<' || nexttoken.id === '(end)') {
|
||
|
|
error("Missing '{a}'.", token, '>');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
lex.skip('>');
|
||
|
|
break;
|
||
|
|
case '<!--':
|
||
|
|
if (option.adsafe) {
|
||
|
|
error("ADsafe comment violation.");
|
||
|
|
}
|
||
|
|
lex.skip('-->');
|
||
|
|
break;
|
||
|
|
case '<%':
|
||
|
|
if (option.adsafe) {
|
||
|
|
error("ADsafe HTML violation.");
|
||
|
|
}
|
||
|
|
lex.skip('%>');
|
||
|
|
break;
|
||
|
|
case '<?':
|
||
|
|
if (option.adsafe) {
|
||
|
|
error("ADsafe HTML violation.");
|
||
|
|
}
|
||
|
|
for (;;) {
|
||
|
|
advance();
|
||
|
|
if (nexttoken.id === '?>') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (nexttoken.id === '<?' || nexttoken.id === '<' ||
|
||
|
|
nexttoken.id === '>' || nexttoken.id === '(end)') {
|
||
|
|
error("Missing '{a}'.", token, '?>');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
lex.skip('?>');
|
||
|
|
break;
|
||
|
|
case '<=':
|
||
|
|
case '<<':
|
||
|
|
case '<<=':
|
||
|
|
error("Missing '{a}'.", nexttoken, '<');
|
||
|
|
break;
|
||
|
|
case '(end)':
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (stack && stack.length === 0) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (!lex.skip('')) {
|
||
|
|
if (!stack) {
|
||
|
|
error("Bad XML.");
|
||
|
|
}
|
||
|
|
t = stack.pop();
|
||
|
|
if (t.value) {
|
||
|
|
error("Missing '{a}'.", t, closetag(t.name));
|
||
|
|
} else {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
advance();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// Build the syntax table by declaring the syntactic elements of the language.
|
||
|
|
|
||
|
|
type('(number)', idValue);
|
||
|
|
type('(string)', idValue);
|
||
|
|
|
||
|
|
syntax['(identifier)'] = {
|
||
|
|
type: '(identifier)',
|
||
|
|
lbp: 0,
|
||
|
|
identifier: true,
|
||
|
|
nud: function () {
|
||
|
|
var v = this.value,
|
||
|
|
s = scope[v];
|
||
|
|
|
||
|
|
// The name is in scope and defined in the current function.
|
||
|
|
|
||
|
|
if (s && (s === funct || s === funct['(global)'])) {
|
||
|
|
|
||
|
|
// If we are not also in the global scope, change 'unused' to 'var',
|
||
|
|
// and reject labels.
|
||
|
|
|
||
|
|
if (!funct['(global)']) {
|
||
|
|
switch (funct[v]) {
|
||
|
|
case 'unused':
|
||
|
|
funct[v] = 'var';
|
||
|
|
break;
|
||
|
|
case 'label':
|
||
|
|
warning("'{a}' is a statement label.", token, v);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// The name is not defined in the function. If we are in the global scope,
|
||
|
|
// then we have an undefined variable.
|
||
|
|
|
||
|
|
} else if (funct['(global)']) {
|
||
|
|
if (option.undef) {
|
||
|
|
warning("'{a}' is undefined.", token, v);
|
||
|
|
}
|
||
|
|
note_implied(token);
|
||
|
|
|
||
|
|
// If the name is already defined in the current
|
||
|
|
// function, but not as outer, then there is a scope error.
|
||
|
|
|
||
|
|
} else {
|
||
|
|
switch (funct[v]) {
|
||
|
|
case 'closure':
|
||
|
|
case 'function':
|
||
|
|
case 'var':
|
||
|
|
case 'unused':
|
||
|
|
warning("'{a}' used out of scope.", token, v);
|
||
|
|
break;
|
||
|
|
case 'label':
|
||
|
|
warning("'{a}' is a statement label.", token, v);
|
||
|
|
break;
|
||
|
|
case 'outer':
|
||
|
|
case true:
|
||
|
|
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 (typeof s !== 'object') {
|
||
|
|
if (option.undef) {
|
||
|
|
warning("'{a}' is undefined.", token, v);
|
||
|
|
} else {
|
||
|
|
funct[v] = true;
|
||
|
|
}
|
||
|
|
note_implied(token);
|
||
|
|
} else {
|
||
|
|
switch (s[v]) {
|
||
|
|
case 'function':
|
||
|
|
case 'var':
|
||
|
|
case 'unused':
|
||
|
|
s[v] = 'closure';
|
||
|
|
funct[v] = 'outer';
|
||
|
|
break;
|
||
|
|
case 'closure':
|
||
|
|
case 'parameter':
|
||
|
|
funct[v] = '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('(regex)', function () {
|
||
|
|
return this;
|
||
|
|
});
|
||
|
|
|
||
|
|
delim('(endline)');
|
||
|
|
delim('(begin)');
|
||
|
|
delim('(end)').reach = true;
|
||
|
|
delim('</').reach = true;
|
||
|
|
delim('<![').reach = true;
|
||
|
|
delim('<%');
|
||
|
|
delim('<?');
|
||
|
|
delim('<!');
|
||
|
|
delim('<!--');
|
||
|
|
delim('%>');
|
||
|
|
delim('?>');
|
||
|
|
delim('(error)').reach = true;
|
||
|
|
delim('}').reach = true;
|
||
|
|
delim(')');
|
||
|
|
delim(']');
|
||
|
|
delim(']]>').reach = true;
|
||
|
|
delim('"').reach = true;
|
||
|
|
delim("'").reach = true;
|
||
|
|
delim(';');
|
||
|
|
delim(':').reach = true;
|
||
|
|
delim(',');
|
||
|
|
reserve('else');
|
||
|
|
reserve('case').reach = true;
|
||
|
|
reserve('catch');
|
||
|
|
reserve('default').reach = true;
|
||
|
|
reserve('finally');
|
||
|
|
reservevar('arguments');
|
||
|
|
reservevar('eval');
|
||
|
|
reservevar('false');
|
||
|
|
reservevar('Infinity');
|
||
|
|
reservevar('NaN');
|
||
|
|
reservevar('null');
|
||
|
|
reservevar('this');
|
||
|
|
reservevar('true');
|
||
|
|
reservevar('undefined');
|
||
|
|
assignop('=', 'assign', 20);
|
||
|
|
assignop('+=', 'assignadd', 20);
|
||
|
|
assignop('-=', 'assignsub', 20);
|
||
|
|
assignop('*=', 'assignmult', 20);
|
||
|
|
assignop('/=', 'assigndiv', 20).nud = function () {
|
||
|
|
error("A regular expression literal can be confused with '/='.");
|
||
|
|
};
|
||
|
|
assignop('%=', 'assignmod', 20);
|
||
|
|
bitwiseassignop('&=', 'assignbitand', 20);
|
||
|
|
bitwiseassignop('|=', 'assignbitor', 20);
|
||
|
|
bitwiseassignop('^=', 'assignbitxor', 20);
|
||
|
|
bitwiseassignop('<<=', 'assignshiftleft', 20);
|
||
|
|
bitwiseassignop('>>=', 'assignshiftright', 20);
|
||
|
|
bitwiseassignop('>>>=', 'assignshiftrightunsigned', 20);
|
||
|
|
infix('?', function (left) {
|
||
|
|
parse(10);
|
||
|
|
advance(':');
|
||
|
|
parse(10);
|
||
|
|
}, 30);
|
||
|
|
|
||
|
|
infix('||', 'or', 40);
|
||
|
|
infix('&&', 'and', 50);
|
||
|
|
bitwise('|', 'bitor', 70);
|
||
|
|
bitwise('^', 'bitxor', 80);
|
||
|
|
bitwise('&', 'bitand', 90);
|
||
|
|
relation('==', function (left, right) {
|
||
|
|
if (option.eqeqeq) {
|
||
|
|
warning("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
this, '===', '==');
|
||
|
|
} else if (isPoorRelation(left)) {
|
||
|
|
warning("Use '{a}' to compare with '{b}'.",
|
||
|
|
this, '===', left.value);
|
||
|
|
} else if (isPoorRelation(right)) {
|
||
|
|
warning("Use '{a}' to compare with '{b}'.",
|
||
|
|
this, '===', right.value);
|
||
|
|
}
|
||
|
|
return this;
|
||
|
|
});
|
||
|
|
relation('===');
|
||
|
|
relation('!=', function (left, right) {
|
||
|
|
if (option.eqeqeq) {
|
||
|
|
warning("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
this, '!==', '!=');
|
||
|
|
} else if (isPoorRelation(left)) {
|
||
|
|
warning("Use '{a}' to compare with '{b}'.",
|
||
|
|
this, '!==', left.value);
|
||
|
|
} else if (isPoorRelation(right)) {
|
||
|
|
warning("Use '{a}' to compare with '{b}'.",
|
||
|
|
this, '!==', right.value);
|
||
|
|
}
|
||
|
|
return this;
|
||
|
|
});
|
||
|
|
relation('!==');
|
||
|
|
relation('<');
|
||
|
|
relation('>');
|
||
|
|
relation('<=');
|
||
|
|
relation('>=');
|
||
|
|
bitwise('<<', 'shiftleft', 120);
|
||
|
|
bitwise('>>', 'shiftright', 120);
|
||
|
|
bitwise('>>>', 'shiftrightunsigned', 120);
|
||
|
|
infix('in', 'in', 120);
|
||
|
|
infix('instanceof', 'instanceof', 120);
|
||
|
|
infix('+', function (left) {
|
||
|
|
nonadjacent(prevtoken, token);
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
var right = parse(130);
|
||
|
|
if (left && right && left.id === '(string)' && right.id === '(string)') {
|
||
|
|
left.value += right.value;
|
||
|
|
left.character = right.character;
|
||
|
|
if (jx.test(left.value)) {
|
||
|
|
warning("JavaScript URL.", left);
|
||
|
|
}
|
||
|
|
return left;
|
||
|
|
}
|
||
|
|
this.left = left;
|
||
|
|
this.right = right;
|
||
|
|
return this;
|
||
|
|
}, 130);
|
||
|
|
prefix('+', 'num');
|
||
|
|
infix('-', 'sub', 130);
|
||
|
|
prefix('-', 'neg');
|
||
|
|
infix('*', 'mult', 140);
|
||
|
|
infix('/', 'div', 140);
|
||
|
|
infix('%', 'mod', 140);
|
||
|
|
|
||
|
|
suffix('++', 'postinc');
|
||
|
|
prefix('++', 'preinc');
|
||
|
|
syntax['++'].exps = true;
|
||
|
|
|
||
|
|
suffix('--', 'postdec');
|
||
|
|
prefix('--', 'predec');
|
||
|
|
syntax['--'].exps = true;
|
||
|
|
prefix('delete', function () {
|
||
|
|
var p = parse(0);
|
||
|
|
if (p.id !== '.' && p.id !== '[') {
|
||
|
|
warning("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
nexttoken, '.', nexttoken.value);
|
||
|
|
}
|
||
|
|
}).exps = true;
|
||
|
|
|
||
|
|
|
||
|
|
prefix('~', function () {
|
||
|
|
if (option.bitwise) {
|
||
|
|
warning("Unexpected '{a}'.", this, '~');
|
||
|
|
}
|
||
|
|
parse(150);
|
||
|
|
return this;
|
||
|
|
});
|
||
|
|
prefix('!', 'not');
|
||
|
|
prefix('typeof', 'typeof');
|
||
|
|
prefix('new', function () {
|
||
|
|
var c = parse(155), i;
|
||
|
|
if (c) {
|
||
|
|
if (c.identifier) {
|
||
|
|
c['new'] = true;
|
||
|
|
switch (c.value) {
|
||
|
|
case 'Object':
|
||
|
|
warning("Use the object literal notation {}.", token);
|
||
|
|
break;
|
||
|
|
case 'Array':
|
||
|
|
warning("Use the array literal notation [].", token);
|
||
|
|
break;
|
||
|
|
case 'Number':
|
||
|
|
case 'String':
|
||
|
|
case 'Boolean':
|
||
|
|
case 'Math':
|
||
|
|
warning("Do not use the {a} function as a constructor.",
|
||
|
|
token, c.value);
|
||
|
|
break;
|
||
|
|
case 'Function':
|
||
|
|
if (!option.evil) {
|
||
|
|
warning("The Function constructor is eval.");
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
if (c.id !== 'function') {
|
||
|
|
i = c.value.substr(0, 1);
|
||
|
|
if (i < 'A' || i > 'Z') {
|
||
|
|
warning(
|
||
|
|
"A constructor name should start with an uppercase letter.",
|
||
|
|
token);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (c.id !== '.' && c.id !== '[' && c.id !== '(') {
|
||
|
|
warning("Bad constructor.", token);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
warning("Weird construction. Delete 'new'.", this);
|
||
|
|
}
|
||
|
|
adjacent(token, nexttoken);
|
||
|
|
if (nexttoken.id === '(') {
|
||
|
|
advance('(');
|
||
|
|
nospace();
|
||
|
|
if (nexttoken.id !== ')') {
|
||
|
|
for (;;) {
|
||
|
|
parse(10);
|
||
|
|
if (nexttoken.id !== ',') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
advance(',');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
advance(')');
|
||
|
|
nospace(prevtoken, token);
|
||
|
|
} else {
|
||
|
|
warning("Missing '()' invoking a constructor.");
|
||
|
|
}
|
||
|
|
return syntax['function'];
|
||
|
|
});
|
||
|
|
syntax['new'].exps = true;
|
||
|
|
|
||
|
|
infix('.', function (left) {
|
||
|
|
adjacent(prevtoken, token);
|
||
|
|
var m = identifier();
|
||
|
|
if (typeof m === 'string') {
|
||
|
|
countMember(m);
|
||
|
|
}
|
||
|
|
if (option.adsafe && adsafe[m] === true) {
|
||
|
|
warning("ADsafe restricted word '{a}'.", this, m);
|
||
|
|
}
|
||
|
|
if (!option.evil && left && left.value === 'document' &&
|
||
|
|
(m === 'write' || m === 'writeln')) {
|
||
|
|
warning("document.write can be a form of eval.", left);
|
||
|
|
}
|
||
|
|
this.left = left;
|
||
|
|
this.right = m;
|
||
|
|
return this;
|
||
|
|
}, 160);
|
||
|
|
|
||
|
|
infix('(', function (left) {
|
||
|
|
adjacent(prevtoken, token);
|
||
|
|
nospace();
|
||
|
|
var n = 0;
|
||
|
|
var p = [];
|
||
|
|
if (left && left.type === '(identifier)') {
|
||
|
|
if (left.value.match(/^[A-Z](.*[a-z].*)?$/)) {
|
||
|
|
if (left.value !== 'Number' && left.value !== 'String' &&
|
||
|
|
left.value !== 'Boolean' && left.value !== 'Date') {
|
||
|
|
if (left.value === 'Math') {
|
||
|
|
warning("Math is not a function.", left);
|
||
|
|
} else {
|
||
|
|
warning("Missing 'new' prefix when invoking a constructor.",
|
||
|
|
left);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (nexttoken.id !== ')') {
|
||
|
|
for (;;) {
|
||
|
|
p[p.length] = parse(10);
|
||
|
|
n += 1;
|
||
|
|
if (nexttoken.id !== ',') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
advance(',');
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
advance(')');
|
||
|
|
nospace(prevtoken, token);
|
||
|
|
if (typeof left === 'object') {
|
||
|
|
if (left.value === 'parseInt' && n === 1) {
|
||
|
|
warning("Missing radix parameter.", left);
|
||
|
|
}
|
||
|
|
if (!option.evil) {
|
||
|
|
if (left.value === 'eval' || left.value === 'Function') {
|
||
|
|
warning("eval is evil.", left);
|
||
|
|
} else if (p[0] && p[0].id === '(string)' &&
|
||
|
|
(left.value === 'setTimeout' ||
|
||
|
|
left.value === 'setInterval')) {
|
||
|
|
warning(
|
||
|
|
"Implied eval is evil. Pass a function instead of a string.", left);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!left.identifier && left.id !== '.' && left.id !== '[' &&
|
||
|
|
left.id !== '(' && left.id !== '&&' && left.id !== '||' &&
|
||
|
|
left.id !== '?') {
|
||
|
|
warning("Bad invocation.", left);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
return syntax['function'];
|
||
|
|
}, 155).exps = true;
|
||
|
|
|
||
|
|
prefix('(', function () {
|
||
|
|
nospace();
|
||
|
|
var v = parse(0);
|
||
|
|
advance(')', this);
|
||
|
|
nospace(prevtoken, token);
|
||
|
|
return v;
|
||
|
|
});
|
||
|
|
|
||
|
|
infix('[', function (left) {
|
||
|
|
if (option.adsafe) {
|
||
|
|
warning('ADsafe subscripting.');
|
||
|
|
}
|
||
|
|
nospace();
|
||
|
|
var e = parse(0), s;
|
||
|
|
if (e && e.type === '(string)') {
|
||
|
|
countMember(e.value);
|
||
|
|
if (ix.test(e.value)) {
|
||
|
|
s = syntax[e.value];
|
||
|
|
if (!s || !s.reserved) {
|
||
|
|
warning("['{a}'] is better written in dot notation.",
|
||
|
|
e, e.value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
advance(']', this);
|
||
|
|
nospace(prevtoken, token);
|
||
|
|
this.left = left;
|
||
|
|
this.right = e;
|
||
|
|
return this;
|
||
|
|
}, 160);
|
||
|
|
|
||
|
|
prefix('[', function () {
|
||
|
|
if (nexttoken.id === ']') {
|
||
|
|
advance(']');
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
var b = token.line !== nexttoken.line;
|
||
|
|
if (b) {
|
||
|
|
indent += 4;
|
||
|
|
if (nexttoken.from === indent + 4) {
|
||
|
|
indent += 4;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for (;;) {
|
||
|
|
if (b && token.line !== nexttoken.line) {
|
||
|
|
indentation();
|
||
|
|
}
|
||
|
|
parse(10);
|
||
|
|
if (nexttoken.id === ',') {
|
||
|
|
adjacent(token, nexttoken);
|
||
|
|
advance(',');
|
||
|
|
if (nexttoken.id === ',' || nexttoken.id === ']') {
|
||
|
|
warning("Extra comma.", token);
|
||
|
|
}
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
} else {
|
||
|
|
if (b) {
|
||
|
|
indent -= 4;
|
||
|
|
indentation();
|
||
|
|
}
|
||
|
|
advance(']', this);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}, 160);
|
||
|
|
|
||
|
|
(function (x) {
|
||
|
|
x.nud = function () {
|
||
|
|
var i, s;
|
||
|
|
if (nexttoken.id === '}') {
|
||
|
|
advance('}');
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
var b = token.line !== nexttoken.line;
|
||
|
|
if (b) {
|
||
|
|
indent += 4;
|
||
|
|
if (nexttoken.from === indent + 4) {
|
||
|
|
indent += 4;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for (;;) {
|
||
|
|
if (b) {
|
||
|
|
indentation();
|
||
|
|
}
|
||
|
|
i = optionalidentifier(true);
|
||
|
|
if (!i) {
|
||
|
|
if (nexttoken.id === '(string)') {
|
||
|
|
i = nexttoken.value;
|
||
|
|
if (ix.test(i)) {
|
||
|
|
s = syntax[i];
|
||
|
|
}
|
||
|
|
advance();
|
||
|
|
} else if (nexttoken.id === '(number)') {
|
||
|
|
i = nexttoken.value.toString();
|
||
|
|
advance();
|
||
|
|
} else {
|
||
|
|
error("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
nexttoken, '}', nexttoken.value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
countMember(i);
|
||
|
|
advance(':');
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
parse(10);
|
||
|
|
if (nexttoken.id === ',') {
|
||
|
|
adjacent(token, nexttoken);
|
||
|
|
advance(',');
|
||
|
|
if (nexttoken.id === ',' || nexttoken.id === '}') {
|
||
|
|
warning("Extra comma.", token);
|
||
|
|
}
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
} else {
|
||
|
|
if (b) {
|
||
|
|
indent -= 4;
|
||
|
|
indentation();
|
||
|
|
}
|
||
|
|
advance('}', this);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
x.fud = function () {
|
||
|
|
error("Expected to see a statement and instead saw a block.", token);
|
||
|
|
};
|
||
|
|
})(delim('{'));
|
||
|
|
|
||
|
|
|
||
|
|
function varstatement() {
|
||
|
|
|
||
|
|
// JavaScript does not have block scope. It only has function scope. So,
|
||
|
|
// declaring a variable in a block can have unexpected consequences.
|
||
|
|
|
||
|
|
for (;;) {
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
addlabel(identifier(), 'unused');
|
||
|
|
if (nexttoken.id === '=') {
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
advance('=');
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
if (peek(0).id === '=') {
|
||
|
|
error("Variable {a} was not declared correctly.",
|
||
|
|
nexttoken, nexttoken.value);
|
||
|
|
}
|
||
|
|
parse(20);
|
||
|
|
}
|
||
|
|
if (nexttoken.id !== ',') {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
adjacent(token, nexttoken);
|
||
|
|
advance(',');
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
stmt('var', varstatement);
|
||
|
|
|
||
|
|
stmt('new', function () {
|
||
|
|
error("'new' should not be used as a statement.");
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
function functionparams() {
|
||
|
|
var i, t = nexttoken, p = [];
|
||
|
|
advance('(');
|
||
|
|
nospace();
|
||
|
|
if (nexttoken.id === ')') {
|
||
|
|
advance(')');
|
||
|
|
nospace(prevtoken, token);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
for (;;) {
|
||
|
|
i = identifier();
|
||
|
|
p.push(i);
|
||
|
|
addlabel(i, 'parameter');
|
||
|
|
if (nexttoken.id === ',') {
|
||
|
|
advance(',');
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
} else {
|
||
|
|
advance(')', t);
|
||
|
|
nospace(prevtoken, token);
|
||
|
|
return p.join(', ');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function doFunction(i) {
|
||
|
|
var s = scope;
|
||
|
|
scope = object(s);
|
||
|
|
funct = {
|
||
|
|
'(name)' : i || '"' + anonname + '"',
|
||
|
|
'(line)' : nexttoken.line + 1,
|
||
|
|
'(context)' : funct,
|
||
|
|
'(breakage)': 0,
|
||
|
|
'(scope)' : scope
|
||
|
|
};
|
||
|
|
functions.push(funct);
|
||
|
|
if (i) {
|
||
|
|
addlabel(i, 'function');
|
||
|
|
}
|
||
|
|
funct['(params)'] = functionparams();
|
||
|
|
|
||
|
|
block(false);
|
||
|
|
scope = s;
|
||
|
|
funct = funct['(context)'];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
blockstmt('function', function () {
|
||
|
|
if (inblock) {
|
||
|
|
warning(
|
||
|
|
"Function statements cannot be placed in blocks. Use a function expression or move the statement to the top of the outer function.", token);
|
||
|
|
|
||
|
|
}
|
||
|
|
var i = identifier();
|
||
|
|
adjacent(token, nexttoken);
|
||
|
|
addlabel(i, 'unused');
|
||
|
|
doFunction(i);
|
||
|
|
if (nexttoken.id === '(' && nexttoken.line === token.line) {
|
||
|
|
error(
|
||
|
|
"Function statements are not invocable. Wrap the function expression in parens.");
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
prefix('function', function () {
|
||
|
|
var i = optionalidentifier();
|
||
|
|
if (i) {
|
||
|
|
adjacent(token, nexttoken);
|
||
|
|
} else {
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
}
|
||
|
|
doFunction(i);
|
||
|
|
});
|
||
|
|
|
||
|
|
blockstmt('if', function () {
|
||
|
|
var t = nexttoken;
|
||
|
|
advance('(');
|
||
|
|
nonadjacent(this, t);
|
||
|
|
nospace();
|
||
|
|
parse(20);
|
||
|
|
if (nexttoken.id === '=') {
|
||
|
|
warning("Expected a conditional expression and instead saw an assignment.");
|
||
|
|
advance('=');
|
||
|
|
parse(20);
|
||
|
|
}
|
||
|
|
advance(')', t);
|
||
|
|
nospace(prevtoken, token);
|
||
|
|
block(true);
|
||
|
|
if (nexttoken.id === 'else') {
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
advance('else');
|
||
|
|
if (nexttoken.id === 'if' || nexttoken.id === 'switch') {
|
||
|
|
statement(true);
|
||
|
|
} else {
|
||
|
|
block(true);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return this;
|
||
|
|
});
|
||
|
|
|
||
|
|
blockstmt('try', function () {
|
||
|
|
var b, e, s;
|
||
|
|
block(false);
|
||
|
|
if (nexttoken.id === 'catch') {
|
||
|
|
advance('catch');
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
advance('(');
|
||
|
|
s = scope;
|
||
|
|
scope = object(s);
|
||
|
|
e = nexttoken.value;
|
||
|
|
if (nexttoken.type !== '(identifier)') {
|
||
|
|
warning("Expected an identifier and instead saw '{a}'.",
|
||
|
|
nexttoken, e);
|
||
|
|
} else {
|
||
|
|
addlabel(e, 'unused');
|
||
|
|
}
|
||
|
|
advance();
|
||
|
|
advance(')');
|
||
|
|
block(false);
|
||
|
|
b = true;
|
||
|
|
scope = s;
|
||
|
|
}
|
||
|
|
if (nexttoken.id === 'finally') {
|
||
|
|
advance('finally');
|
||
|
|
block(false);
|
||
|
|
return;
|
||
|
|
} else if (!b) {
|
||
|
|
error("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
nexttoken, 'catch', nexttoken.value);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
blockstmt('while', function () {
|
||
|
|
var t = nexttoken;
|
||
|
|
funct['(breakage)'] += 1;
|
||
|
|
advance('(');
|
||
|
|
nonadjacent(this, t);
|
||
|
|
nospace();
|
||
|
|
parse(20);
|
||
|
|
if (nexttoken.id === '=') {
|
||
|
|
warning("Expected a conditional expression and instead saw an assignment.");
|
||
|
|
advance('=');
|
||
|
|
parse(20);
|
||
|
|
}
|
||
|
|
advance(')', t);
|
||
|
|
nospace(prevtoken, token);
|
||
|
|
block(true);
|
||
|
|
funct['(breakage)'] -= 1;
|
||
|
|
}).labelled = true;
|
||
|
|
|
||
|
|
reserve('with');
|
||
|
|
|
||
|
|
blockstmt('switch', function () {
|
||
|
|
var t = nexttoken;
|
||
|
|
var g = false;
|
||
|
|
funct['(breakage)'] += 1;
|
||
|
|
advance('(');
|
||
|
|
nonadjacent(this, t);
|
||
|
|
nospace();
|
||
|
|
this.condition = parse(20);
|
||
|
|
advance(')', t);
|
||
|
|
nospace(prevtoken, token);
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
t = nexttoken;
|
||
|
|
advance('{');
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
indent += 4;
|
||
|
|
this.cases = [];
|
||
|
|
for (;;) {
|
||
|
|
switch (nexttoken.id) {
|
||
|
|
case 'case':
|
||
|
|
switch (funct['(verb)']) {
|
||
|
|
case 'break':
|
||
|
|
case 'case':
|
||
|
|
case 'continue':
|
||
|
|
case 'return':
|
||
|
|
case 'switch':
|
||
|
|
case 'throw':
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
warning(
|
||
|
|
"Expected a 'break' statement before 'case'.",
|
||
|
|
token);
|
||
|
|
}
|
||
|
|
indentation(-4);
|
||
|
|
advance('case');
|
||
|
|
this.cases.push(parse(20));
|
||
|
|
g = true;
|
||
|
|
advance(':');
|
||
|
|
funct['(verb)'] = 'case';
|
||
|
|
break;
|
||
|
|
case 'default':
|
||
|
|
switch (funct['(verb)']) {
|
||
|
|
case 'break':
|
||
|
|
case 'continue':
|
||
|
|
case 'return':
|
||
|
|
case 'throw':
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
warning(
|
||
|
|
"Expected a 'break' statement before 'default'.",
|
||
|
|
token);
|
||
|
|
}
|
||
|
|
indentation(-4);
|
||
|
|
advance('default');
|
||
|
|
g = true;
|
||
|
|
advance(':');
|
||
|
|
break;
|
||
|
|
case '}':
|
||
|
|
indent -= 4;
|
||
|
|
indentation();
|
||
|
|
advance('}', t);
|
||
|
|
if (this.cases.length === 1 || this.condition.id === 'true' ||
|
||
|
|
this.condition.id === 'false') {
|
||
|
|
warning("This 'switch' should be an 'if'.", this);
|
||
|
|
}
|
||
|
|
funct['(breakage)'] -= 1;
|
||
|
|
return;
|
||
|
|
case '(end)':
|
||
|
|
error("Missing '{a}'.", nexttoken, '}');
|
||
|
|
return;
|
||
|
|
default:
|
||
|
|
if (g) {
|
||
|
|
switch (token.id) {
|
||
|
|
case ',':
|
||
|
|
error("Each value should have its own case label.");
|
||
|
|
return;
|
||
|
|
case ':':
|
||
|
|
statements();
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
error("Missing ':' on a case clause.", token);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
error("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
nexttoken, 'case', nexttoken.value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}).labelled = true;
|
||
|
|
|
||
|
|
stmt('debugger', function () {
|
||
|
|
if (!option.debug) {
|
||
|
|
warning("All 'debugger' statements should be removed.");
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
stmt('do', function () {
|
||
|
|
funct['(breakage)'] += 1;
|
||
|
|
block(true);
|
||
|
|
advance('while');
|
||
|
|
var t = nexttoken;
|
||
|
|
nonadjacent(token, t);
|
||
|
|
advance('(');
|
||
|
|
nospace();
|
||
|
|
parse(20);
|
||
|
|
if (nexttoken.id === '=') {
|
||
|
|
warning("Expected a conditional expression and instead saw an assignment.");
|
||
|
|
advance('=');
|
||
|
|
parse(20);
|
||
|
|
}
|
||
|
|
advance(')', t);
|
||
|
|
nospace(prevtoken, token);
|
||
|
|
funct['(breakage)'] -= 1;
|
||
|
|
}).labelled = true;
|
||
|
|
|
||
|
|
blockstmt('for', function () {
|
||
|
|
var s, t = nexttoken;
|
||
|
|
funct['(breakage)'] += 1;
|
||
|
|
advance('(');
|
||
|
|
nonadjacent(this, t);
|
||
|
|
nospace();
|
||
|
|
if (peek(nexttoken.id === 'var' ? 1 : 0).id === 'in') {
|
||
|
|
if (nexttoken.id === 'var') {
|
||
|
|
advance('var');
|
||
|
|
addlabel(identifier(), 'var');
|
||
|
|
} else {
|
||
|
|
advance();
|
||
|
|
}
|
||
|
|
advance('in');
|
||
|
|
parse(20);
|
||
|
|
advance(')', t);
|
||
|
|
if (nexttoken.id === 'if') {
|
||
|
|
nolinebreak(token);
|
||
|
|
statement(true);
|
||
|
|
} else {
|
||
|
|
s = block(true);
|
||
|
|
if (!option.forin && (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;
|
||
|
|
return this;
|
||
|
|
} else {
|
||
|
|
if (nexttoken.id !== ';') {
|
||
|
|
if (nexttoken.id === 'var') {
|
||
|
|
advance('var');
|
||
|
|
varstatement();
|
||
|
|
} else {
|
||
|
|
for (;;) {
|
||
|
|
parse(0, 'for');
|
||
|
|
if (nexttoken.id !== ',') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
advance(',');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
advance(';');
|
||
|
|
if (nexttoken.id !== ';') {
|
||
|
|
parse(20);
|
||
|
|
if (nexttoken.id === '=') {
|
||
|
|
warning("Expected a conditional expression and instead saw an assignment.");
|
||
|
|
advance('=');
|
||
|
|
parse(20);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
advance(';');
|
||
|
|
if (nexttoken.id === ';') {
|
||
|
|
error("Expected '{a}' and instead saw '{b}'.",
|
||
|
|
nexttoken, ')', ';');
|
||
|
|
}
|
||
|
|
if (nexttoken.id !== ')') {
|
||
|
|
for (;;) {
|
||
|
|
parse(0, 'for');
|
||
|
|
if (nexttoken.id !== ',') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
advance(',');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
advance(')', t);
|
||
|
|
nospace(prevtoken, token);
|
||
|
|
block(true);
|
||
|
|
funct['(breakage)'] += 1;
|
||
|
|
}
|
||
|
|
}).labelled = true;
|
||
|
|
|
||
|
|
|
||
|
|
stmt('break', function () {
|
||
|
|
var v = nexttoken.value;
|
||
|
|
if (funct['(breakage)'] === 0) {
|
||
|
|
warning("Unexpected '{a}'.", nexttoken, this.value);
|
||
|
|
}
|
||
|
|
nolinebreak(this);
|
||
|
|
if (nexttoken.id !== ';') {
|
||
|
|
if (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);
|
||
|
|
}
|
||
|
|
advance();
|
||
|
|
}
|
||
|
|
reachable('break');
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
stmt('continue', function () {
|
||
|
|
var v = nexttoken.value;
|
||
|
|
nolinebreak(this);
|
||
|
|
if (nexttoken.id !== ';') {
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
advance();
|
||
|
|
}
|
||
|
|
reachable('continue');
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
stmt('return', function () {
|
||
|
|
nolinebreak(this);
|
||
|
|
if (nexttoken.id !== ';' && !nexttoken.reach) {
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
parse(20);
|
||
|
|
}
|
||
|
|
reachable('return');
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
stmt('throw', function () {
|
||
|
|
nolinebreak(this);
|
||
|
|
nonadjacent(token, nexttoken);
|
||
|
|
parse(20);
|
||
|
|
reachable('throw');
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
// Superfluous reserved words
|
||
|
|
|
||
|
|
reserve('abstract');
|
||
|
|
reserve('boolean');
|
||
|
|
reserve('byte');
|
||
|
|
reserve('char');
|
||
|
|
reserve('class');
|
||
|
|
reserve('const');
|
||
|
|
reserve('double');
|
||
|
|
reserve('enum');
|
||
|
|
reserve('export');
|
||
|
|
reserve('extends');
|
||
|
|
reserve('final');
|
||
|
|
reserve('float');
|
||
|
|
reserve('goto');
|
||
|
|
reserve('implements');
|
||
|
|
reserve('import');
|
||
|
|
reserve('int');
|
||
|
|
reserve('interface');
|
||
|
|
reserve('long');
|
||
|
|
reserve('native');
|
||
|
|
reserve('package');
|
||
|
|
reserve('private');
|
||
|
|
reserve('protected');
|
||
|
|
reserve('public');
|
||
|
|
reserve('short');
|
||
|
|
reserve('static');
|
||
|
|
reserve('super');
|
||
|
|
reserve('synchronized');
|
||
|
|
reserve('throws');
|
||
|
|
reserve('transient');
|
||
|
|
reserve('void');
|
||
|
|
reserve('volatile');
|
||
|
|
|
||
|
|
|
||
|
|
function jsonValue() {
|
||
|
|
|
||
|
|
function jsonObject() {
|
||
|
|
var t = nexttoken;
|
||
|
|
advance('{');
|
||
|
|
if (nexttoken.id !== '}') {
|
||
|
|
for (;;) {
|
||
|
|
if (nexttoken.id === '(end)') {
|
||
|
|
error("Missing '}' to match '{' from line {a}.",
|
||
|
|
nexttoken, t.line + 1);
|
||
|
|
} 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);
|
||
|
|
}
|
||
|
|
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 + 1);
|
||
|
|
} else if (nexttoken.id === ']') {
|
||
|
|
warning("Unexpected comma.", token);
|
||
|
|
break;
|
||
|
|
} else if (nexttoken.id === ',') {
|
||
|
|
error("Unexpected comma.", nexttoken);
|
||
|
|
}
|
||
|
|
jsonValue();
|
||
|
|
if (nexttoken.id !== ',') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
advance(',');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
advance(']');
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (nexttoken.id) {
|
||
|
|
case '{':
|
||
|
|
jsonObject();
|
||
|
|
break;
|
||
|
|
case '[':
|
||
|
|
jsonArray();
|
||
|
|
break;
|
||
|
|
case 'true':
|
||
|
|
case 'false':
|
||
|
|
case 'null':
|
||
|
|
case '(number)':
|
||
|
|
case '(string)':
|
||
|
|
advance();
|
||
|
|
break;
|
||
|
|
case '-':
|
||
|
|
advance('-');
|
||
|
|
if (token.character !== nexttoken.from) {
|
||
|
|
warning("Unexpected space after '-'.", token);
|
||
|
|
}
|
||
|
|
adjacent(token, nexttoken);
|
||
|
|
advance('(number)');
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
error("Expected a JSON value.", nexttoken);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// The actual JSLINT function itself.
|
||
|
|
|
||
|
|
var itself = function (s, o, a) {
|
||
|
|
if (o) {
|
||
|
|
if (o.adsafe) {
|
||
|
|
o.browser = false;
|
||
|
|
o.debug = false;
|
||
|
|
o.eqeqeq = true;
|
||
|
|
o.evil = false;
|
||
|
|
o.forin = false;
|
||
|
|
o.nomen = true;
|
||
|
|
o.on = false;
|
||
|
|
o.rhino = false;
|
||
|
|
o.sidebar = false;
|
||
|
|
o.undef = true;
|
||
|
|
o.widget = false;
|
||
|
|
}
|
||
|
|
option = o;
|
||
|
|
} else {
|
||
|
|
option = {};
|
||
|
|
}
|
||
|
|
adsafe_allow = a || {
|
||
|
|
ADSAFE: true
|
||
|
|
};
|
||
|
|
globals = option.adsafe ? {Math: true, Number: true} : object(standard);
|
||
|
|
JSLINT.errors = [];
|
||
|
|
global = object(globals);
|
||
|
|
scope = global;
|
||
|
|
funct = {'(global)': true, '(name)': '(global)', '(scope)': scope};
|
||
|
|
functions = [];
|
||
|
|
src = false;
|
||
|
|
xmode = false;
|
||
|
|
xtype = '';
|
||
|
|
stack = null;
|
||
|
|
member = {};
|
||
|
|
membersOnly = null;
|
||
|
|
implied = {};
|
||
|
|
inblock = false;
|
||
|
|
lookahead = [];
|
||
|
|
indent = 0;
|
||
|
|
jsonmode = false;
|
||
|
|
warnings = 0;
|
||
|
|
lex.init(s);
|
||
|
|
prereg = true;
|
||
|
|
|
||
|
|
prevtoken = token = nexttoken = syntax['(begin)'];
|
||
|
|
populateGlobals();
|
||
|
|
|
||
|
|
try {
|
||
|
|
advance();
|
||
|
|
if (nexttoken.value.charAt(0) === '<') {
|
||
|
|
xml();
|
||
|
|
} else if (nexttoken.id === '{' || nexttoken.id === '[') {
|
||
|
|
option.laxbreak = true;
|
||
|
|
jsonmode = true;
|
||
|
|
jsonValue();
|
||
|
|
} else {
|
||
|
|
statements();
|
||
|
|
}
|
||
|
|
advance('(end)');
|
||
|
|
} catch (e) {
|
||
|
|
if (e) {
|
||
|
|
JSLINT.errors.push({
|
||
|
|
reason : e.message,
|
||
|
|
line : e.line || nexttoken.line,
|
||
|
|
character : e.character || nexttoken.from
|
||
|
|
}, null);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return JSLINT.errors.length === 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
function to_array(o) {
|
||
|
|
var a = [], k;
|
||
|
|
for (k in o) if (o.hasOwnProperty(k)) {
|
||
|
|
a.push(k);
|
||
|
|
}
|
||
|
|
return a;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Report generator.
|
||
|
|
|
||
|
|
itself.report = function (option) {
|
||
|
|
var a = [], c, e, f, i, k, l, m = '', n, o = [], s, v, cl, va, un, ou, gl, la;
|
||
|
|
|
||
|
|
function detail(h, s) {
|
||
|
|
if (s.length) {
|
||
|
|
o.push('<div><i>' + h + '</i> ' +
|
||
|
|
s.sort().join(', ') + '</div>');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
s = to_array(implied);
|
||
|
|
|
||
|
|
k = JSLINT.errors.length;
|
||
|
|
if (k || s.length > 0) {
|
||
|
|
o.push('<div id=errors><i>Error:</i>');
|
||
|
|
if (s.length > 0) {
|
||
|
|
s.sort();
|
||
|
|
for (i = 0; i < s.length; i += 1) {
|
||
|
|
s[i] = '<code>' + s[i] + '</code> <i>' +
|
||
|
|
implied[s[i]].join(' ') +
|
||
|
|
'</i>';
|
||
|
|
}
|
||
|
|
o.push('<p><i>Implied global:</i> ' + s.join(', ') + '</p>');
|
||
|
|
c = true;
|
||
|
|
}
|
||
|
|
for (i = 0; i < k; i += 1) {
|
||
|
|
c = JSLINT.errors[i];
|
||
|
|
if (c) {
|
||
|
|
e = c.evidence || '';
|
||
|
|
o.push('<p>Problem' + (isFinite(c.line) ? ' at line ' + (c.line + 1) +
|
||
|
|
' character ' + (c.character + 1) : '') +
|
||
|
|
': ' + c.reason.entityify() +
|
||
|
|
'</p><p class=evidence>' +
|
||
|
|
(e && (e.length > 80 ? e.slice(0, 77) + '...' :
|
||
|
|
e).entityify()) + '</p>');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
o.push('</div>');
|
||
|
|
if (!c) {
|
||
|
|
return o.join('');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!option) {
|
||
|
|
|
||
|
|
o.push('<div id=functions>');
|
||
|
|
|
||
|
|
s = to_array(scope);
|
||
|
|
if (s.length === 0) {
|
||
|
|
if (jsonmode) {
|
||
|
|
if (k === 0) {
|
||
|
|
o.push('<p>JSON: good.</p>');
|
||
|
|
} else {
|
||
|
|
o.push('<p>JSON: bad.</p>');
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
o.push('<div><i>No new global variables introduced.</i></div>');
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
o.push('<div><i>Global</i> ' + s.sort().join(', ') + '</div>');
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i = 0; i < functions.length; i += 1) {
|
||
|
|
f = functions[i];
|
||
|
|
cl = [];
|
||
|
|
va = [];
|
||
|
|
un = [];
|
||
|
|
ou = [];
|
||
|
|
gl = [];
|
||
|
|
la = [];
|
||
|
|
for (k in f) if (f.hasOwnProperty(k)) {
|
||
|
|
v = f[k];
|
||
|
|
switch (v) {
|
||
|
|
case 'closure':
|
||
|
|
cl.push(k);
|
||
|
|
break;
|
||
|
|
case 'var':
|
||
|
|
va.push(k);
|
||
|
|
break;
|
||
|
|
case 'unused':
|
||
|
|
un.push(k);
|
||
|
|
break;
|
||
|
|
case 'label':
|
||
|
|
la.push(k);
|
||
|
|
break;
|
||
|
|
case 'outer':
|
||
|
|
ou.push(k);
|
||
|
|
break;
|
||
|
|
case true:
|
||
|
|
if (k !== '(context)') {
|
||
|
|
gl.push(k);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
o.push('<br><div class=function><i>' + f['(line)'] + '</i> ' +
|
||
|
|
(f['(name)'] || '') + '(' +
|
||
|
|
(f['(params)'] || '') + ')</div>');
|
||
|
|
detail('Closure', cl);
|
||
|
|
detail('Variable', va);
|
||
|
|
detail('Unused', un);
|
||
|
|
detail('Label', la);
|
||
|
|
detail('Outer', ou);
|
||
|
|
detail('Global', gl);
|
||
|
|
}
|
||
|
|
a = [];
|
||
|
|
for (k in member) {
|
||
|
|
if (typeof member[k] === 'number') {
|
||
|
|
a.push(k);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (a.length) {
|
||
|
|
a = a.sort();
|
||
|
|
m = '<br><pre>/*members ';
|
||
|
|
l = 10;
|
||
|
|
for (i = 0; i < a.length; i += 1) {
|
||
|
|
k = a[i];
|
||
|
|
n = k.name();
|
||
|
|
if (l + n.length > 72) {
|
||
|
|
o.push(m + '<br>');
|
||
|
|
m = ' ';
|
||
|
|
l = 1;
|
||
|
|
}
|
||
|
|
l += n.length + 2;
|
||
|
|
if (member[k] === 1) {
|
||
|
|
n = '<i>' + n + '</i>';
|
||
|
|
}
|
||
|
|
if (i < a.length - 1) {
|
||
|
|
n += ', ';
|
||
|
|
}
|
||
|
|
m += n;
|
||
|
|
}
|
||
|
|
o.push(m + '<br>*/</pre>');
|
||
|
|
}
|
||
|
|
o.push('</div>');
|
||
|
|
}
|
||
|
|
return o.join('');
|
||
|
|
};
|
||
|
|
|
||
|
|
return itself;
|
||
|
|
|
||
|
|
}();
|