// jslint.js
// 2013-02-03
// Copyright (c) 2002 Douglas Crockford (www.JSLint.com)
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// The Software shall be used for Good, not Evil.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// WARNING: JSLint will hurt your feelings.
// JSLINT is a global function. It takes two parameters.
// var myResult = JSLINT(source, option);
// The first parameter is either a string or an array of strings. If it is a
// string, it will be split on '\n' or '\r'. If it is an array of strings, it
// is assumed that each string represents one line. The source can be a
// JavaScript text, or HTML text, or a JSON text, or a CSS text.
// The second parameter is an optional object of options that control the
// operation of JSLINT. Most of the options are booleans: They are all
// optional and have a default value of false. One of the options, predef,
// can be an array of names, which will be used to declare global variables,
// or an object whose keys are used as global names, with a boolean value
// that determines if they are assignable.
// If it checks out, JSLINT returns true. Otherwise, it returns false.
// If false, you can inspect JSLINT.errors to find out the problems.
// JSLINT.errors is an array of objects containing these properties:
// {
// line : The line (relative to 0) at which the lint was found
// character : The character (relative to 0) at which the lint was found
// reason : The problem
// evidence : The text line in which the problem occurred
// raw : The raw message before the details were inserted
// a : The first detail
// b : The second detail
// c : The third detail
// d : The fourth detail
// }
// If a stopping error was found, a null will be the last element of the
// JSLINT.errors array. A stopping error means that JSLint was not confident
// enough to continue. It does not necessarily mean that the error was
// especially heinous.
// You can request a data structure that contains JSLint's results.
// var myData = JSLINT.data();
// It returns a structure with this form:
// {
// errors: [
// {
// line: NUMBER,
// character: NUMBER,
// reason: STRING,
// evidence: STRING
// }
// ],
// functions: [
// {
// name: STRING,
// line: NUMBER,
// last: NUMBER,
// params: [
// {
// string: STRING
// }
// ],
// closure: [
// STRING
// ],
// var: [
// STRING
// ],
// exception: [
// STRING
// ],
// outer: [
// STRING
// ],
// unused: [
// STRING
// ],
// undef: [
// STRING
// ],
// global: [
// STRING
// ],
// label: [
// STRING
// ]
// }
// ],
// globals: [
// STRING
// ],
// member: {
// STRING: NUMBER
// },
// urls: [
// STRING
// ],
// json: BOOLEAN
// }
// Empty arrays will not be included.
// You can request a Function Report, which shows all of the functions
// and the parameters and vars that they use. This can be used to find
// implied global variables and other problems. The report is in HTML and
// can be inserted in an HTML <body>. It should be given the result of the
// JSLINT.data function.
// var myReport = JSLINT.report(data);
// You can request an HTML error report.
// var myErrorReport = JSLINT.error_report(data);
// You can request a properties report, which produces a list of the program's
// properties in the form of a /*properties*/ declaration.
// var myPropertyReport = JSLINT.properties_report(JSLINT.property);
// You can obtain the parse tree that JSLint constructed while parsing. The
// latest tree is kept in JSLINT.tree. A nice stringification can be produced
// with
// JSON.stringify(JSLINT.tree, [
// 'string', 'arity', 'name', 'first',
// 'second', 'third', 'block', 'else'
// ], 4));
// JSLint provides three directives. They look like slashstar comments, and
// allow for setting options, declaring global variables, and establishing a
// set of allowed property names.
// These directives respect function scope.
// The jslint directive is a special comment that can set one or more options.
// For example:
/*jslint
evil: true, nomen: true, regexp: true, todo: true
*/
// The current option set is
// anon true, if the space may be omitted in anonymous function declarations
// bitwise true, if bitwise operators should be allowed
// browser true, if the standard browser globals should be predefined
// 'continue' true, if the continuation statement should be tolerated
// css true, if CSS workarounds should be tolerated
// debug true, if debugger statements should be allowed
// devel true, if logging should be allowed (console, alert, etc.)
// eqeq true, if == should be allowed
// es5 true, if ES5 syntax should be allowed
// evil true, if eval should be allowed
// forin true, if for in statements need not filter
// fragment true, if HTML fragments should be allowed
// indent the indentation factor
// maxerr the maximum number of errors to allow
// maxlen the maximum length of a source line
// newcap true, if constructor names capitalization is ignored
// node true, if Node.js globals should be predefined
// nomen true, if names may have dangling _
// on true, if HTML event handlers should be allowed
// passfail true, if the scan should stop on first error
// plusplus true, if increment/decrement should be allowed
// properties true, if all property names must be declared with /*properties*/
// regexp true, if the . should be allowed in regexp literals
// rhino true, if the Rhino environment globals should be predefined
// undef true, if variables can be declared out of order
// unparam true, if unused parameters should be tolerated
// sloppy true, if the 'use strict'; pragma is optional
// stupid true, if really stupid practices are tolerated
// sub true, if all forms of subscript notation are tolerated
// todo true, if TODO comments are tolerated
// vars true, if multiple var statements per function should be allowed
// white true, if sloppy whitespace is tolerated
// windows true, if MS Windows-specific globals should be predefined
// The properties directive declares an exclusive list of property names.
// Any properties named in the program that are not in the list will
// produce a warning.
// For example:
/*properties
'\b', '\t', '\n', '\f', '\r', '!', '!=', '!==', '"', '%', '\'',
'(arguments)', '(begin)', '(breakage)', '(context)', '(error)',
'(identifier)', '(line)', '(loopage)', '(name)', '(params)', '(scope)',
'(token)', '(vars)', '(verb)', '*', '+', '-', '/', '<', '<=', '==', '===',
'>', '>=', ADSAFE, Array, Date, Function, Object, '\\', a, a_label,
a_not_allowed, a_not_defined, a_scope, abbr, acronym, address, adsafe,
adsafe_a, adsafe_autocomplete, adsafe_bad_id, adsafe_div, adsafe_fragment,
adsafe_go, adsafe_html, adsafe_id, adsafe_id_go, adsafe_lib,
adsafe_lib_second, adsafe_missing_id, adsafe_name_a, adsafe_placement,
adsafe_prefix_a, adsafe_script, adsafe_source, adsafe_subscript_a,
adsafe_tag, all, already_defined, and, anon, applet, apply, approved, area,
arity, article, aside, assign, assign_exception,
assignment_function_expression, at, attribute_case_a, audio, autocomplete,
avoid_a, b, background, 'background-attachment', 'background-color',
'background-image', 'background-position', 'background-repeat',
bad_assignment, bad_color_a, bad_constructor, bad_entity, bad_html, bad_id_a,
bad_in_a, bad_invocation, bad_name_a, bad_new, bad_number, bad_operand,
bad_style, bad_type, bad_url_a, bad_wrap, base, bdo, big, bitwise, block,
blockquote, body, border, 'border-bottom', 'border-bottom-color',
'border-bottom-left-radius', 'border-bottom-right-radius',
'border-bottom-style', 'border-bottom-width', 'border-collapse',
'border-color', 'border-left', 'border-left-color', 'border-left-style',
'border-left-width', 'border-radius', 'border-right', 'border-right-color',
'border-right-style', 'border-right-width', 'border-spacing', 'border-style',
'border-top', 'border-top-color', 'border-top-left-radius',
'border-top-right-radius', 'border-top-style', 'border-top-width',
'border-width', bottom, 'box-shadow', br, braille, browser, button, c, call,
canvas, caption, 'caption-side', center, charAt, charCodeAt, character,
cite, clear, clip, closure, cm, code, col, colgroup, color, combine_var,
command, conditional_assignment, confusing_a, confusing_regexp,
constructor_name_a, content, continue, control_a, 'counter-increment',
'counter-reset', create, css, cursor, d, dangerous_comment, dangling_a, data,
datalist, dd, debug, del, deleted, details, devel, dfn, dialog, dir,
direction, display, disrupt, div, dl, dt, duplicate_a, edge, edition, else,
em, embed, embossed, empty, 'empty-cells', empty_block, empty_case,
empty_class, entityify, eqeq, error_report, errors, es5, eval, evidence,
evil, ex, exception, exec, expected_a, expected_a_at_b_c, expected_a_b,
expected_a_b_from_c_d, expected_at_a, expected_attribute_a,
expected_attribute_value_a, expected_class_a, expected_fraction_a,
expected_id_a, expected_identifier_a, expected_identifier_a_reserved,
expected_lang_a, expected_linear_a, expected_media_a, expected_name_a,
expected_nonstandard_style_attribute, expected_number_a, expected_operator_a,
expected_percent_a, expected_positive_a, expected_pseudo_a,
expected_selector_a, expected_small_a, expected_space_a_b, expected_string_a,
expected_style_attribute, expected_style_pattern, expected_tagname_a,
expected_type_a, f, fieldset, figcaption, figure, filter, first, flag, float,
floor, font, 'font-family', 'font-size', 'font-size-adjust', 'font-stretch',
'font-style', 'font-variant', 'font-weight', footer, forEach, for_if, forin,
form, fragment, frame, frameset, from, fromCharCode, fud, funct, function,
function_block, function_eval, function_loop, function_statement,
function_strict, functions, global, globals, h1, h2, h3, h4, h5, h6,
handheld, hasOwnProperty, head, header, height, hgroup, hr,
'hta:application', html, html_confusion_a, html_handlers, i, id, identifier,
identifier_function, iframe, img, immed, implied_evil, in, indent, indexOf,
infix_in, init, input, ins, insecure_a, isAlpha, isArray, isDigit, isNaN,
join, jslint, json, kbd, keygen, keys, label, labeled, lang, lbp,
leading_decimal_a, led, left, legend, length, 'letter-spacing', li, lib,
line, 'line-height', link, 'list-style', 'list-style-image',
'list-style-position', 'list-style-type', map, margin, 'margin-bottom',
'margin-left', 'margin-right', 'margin-top', mark, 'marker-offset', match,
'max-height', 'max-width', maxerr, maxlen, menu, message, meta, meter,
'min-height', 'min-width', missing_a, missing_a_after_b, missing_option,
missing_property, missing_space_a_b, missing_url, missing_use_strict,
mm, mode, move_invocation, move_var, n, name, name_function, nav,
nested_comment, newcap, node, noframes, nomen, noscript, not,
not_a_constructor, not_a_defined, not_a_function, not_a_label, not_a_scope,
not_greater, nud, number, object, octal_a, ol, on, opacity, open, optgroup,
option, outer, outline, 'outline-color', 'outline-style', 'outline-width',
output, overflow, 'overflow-x', 'overflow-y', p, padding, 'padding-bottom',
'padding-left', 'padding-right', 'padding-top', 'page-break-after',
'page-break-before', param, parameter_a_get_b, parameter_arguments_a,
parameter_set_a, params, paren, parent, passfail, pc, plusplus, pop,
position, postscript, pre, predef, print, progress, projection, properties,
properties_report, property, prototype, pt, push, px, q, quote, quotes, r,
radix, range, raw, read_only, reason, redefinition_a, regexp, replace,
report, reserved, reserved_a, rhino, right, rp, rt, ruby, safe, samp,
scanned_a_b, screen, script, search, second, section, select, shift,
slash_equal, slice, sloppy, small, sort, source, span, speech, split, src,
statement_block, stopping, strange_loop, strict, string, strong, stupid,
style, styleproperty, sub, subscript, substr, summary, sup, supplant,
sync_a, t,table, 'table-layout', tag_a_in_b, tbody, td, test, 'text-align',
'text-decoration', 'text-indent', 'text-shadow', 'text-transform', textarea,
tfoot, th, thead, third, thru, time, title, todo, todo_comment, toLowerCase,
toString, toUpperCase, token, too_long, too_many, top, tr,
trailing_decimal_a, tree, tt, tty, tv, type, u, ul, unclosed,
unclosed_comment, unclosed_regexp, undef, undefined, unescaped_a,
unexpected_a, unexpected_char_a_b, unexpected_comment, unexpected_else,
unexpected_label_a, unexpected_property_a, unexpected_space_a_b,
unexpected_typeof_a, 'unicode-bidi', unnecessary_initialize,
unnecessary_use, unparam, unreachable_a_b, unrecognized_style_attribute_a,
unrecognized_tag_a, unsafe, unused, url, urls, use_array, use_braces,
use_charAt, use_object, use_or, use_param, use_spaces, used_before_a, var,
var_a_not, vars, 'vertical-align', video, visibility, was, weird_assignment,
weird_condition, weird_new, weird_program, weird_relation, weird_ternary,
white, 'white-space', width, windows, 'word-spacing', 'word-wrap', wrap,
wrap_immediate, wrap_regexp, write_is_wrong, writeable, 'z-index'
*/
// The global directive is used to declare global variables that can
// be accessed by the program. If a declaration is true, then the variable
// is writeable. Otherwise, it is read-only.
// We build the application inside a function so that we produce only a single
// global variable. That function will be invoked immediately, and its return
// value is the JSLINT function itself. That function is also an object that
// can contain data and other functions.
var JSLINT = (function () {
'use strict';
function array_to_object(array, value) {
// Make an object from an array of keys and a common value.
var i, length = array.length, object = {};
for (i = 0; i < length; i += 1) {
object[array[i]] = value;
}
return object;
}
var adsafe_id, // The widget's ADsafe id.
adsafe_may, // The widget may load approved scripts.
adsafe_top, // At the top of the widget script.
adsafe_went, // ADSAFE.go has been called.
allowed_option = {
anon : true,
bitwise : true,
browser : true,
'continue': true,
css : true,
debug : true,
devel : true,
eqeq : true,
es5 : true,
evil : true,
forin : true,
fragment : true,
indent : 10,
maxerr : 1000,
maxlen : 256,
newcap : true,
node : true,
nomen : true,
on : true,
passfail : true,
plusplus : true,
properties: true,
regexp : true,
rhino : true,
undef : true,
unparam : true,
sloppy : true,
stupid : true,
sub : true,
todo : true,
vars : true,
white : true,
windows : true
},
anonname, // The guessed name for anonymous functions.
approved, // ADsafe approved urls.
// These are operators that should not be used with the ! operator.
bang = {
'<' : true,
'<=' : true,
'==' : true,
'===': true,
'!==': true,
'!=' : true,
'>' : true,
'>=' : true,
'+' : true,
'-' : true,
'*' : true,
'/' : true,
'%' : true
},
// These are property names that should not be permitted in the safe subset.
banned = array_to_object([
'arguments', 'callee', 'caller', 'constructor', 'eval', 'prototype',
'stack', 'unwatch', 'valueOf', 'watch'
], true),
begin, // The root token
// browser contains a set of global names that are commonly provided by a
// web browser environment.
browser = array_to_object([
'clearInterval', 'clearTimeout', 'document', 'event', 'FormData',
'frames', 'history', 'Image', 'localStorage', 'location', 'name',
'navigator', 'Option', 'parent', 'screen', 'sessionStorage',
'setInterval', 'setTimeout', 'Storage', 'window', 'XMLHttpRequest'
], false),
// bundle contains the text messages.
bundle = {
a_label: "'{a}' is a statement label.",
a_not_allowed: "'{a}' is not allowed.",
a_not_defined: "'{a}' is not defined.",
a_scope: "'{a}' used out of scope.",
adsafe_a: "ADsafe violation: '{a}'.",
adsafe_autocomplete: "ADsafe autocomplete violation.",
adsafe_bad_id: "ADSAFE violation: bad id.",
adsafe_div: "ADsafe violation: Wrap the widget in a div.",
adsafe_fragment: "ADSAFE: Use the fragment option.",
adsafe_go: "ADsafe violation: Misformed ADSAFE.go.",
adsafe_html: "Currently, ADsafe does not operate on whole HTML " +
"documents. It operates on <div> fragments and .js files.",
adsafe_id: "ADsafe violation: id does not match.",
adsafe_id_go: "ADsafe violation: Missing ADSAFE.id or ADSAFE.go.",
adsafe_lib: "ADsafe lib violation.",
adsafe_lib_second: "ADsafe: The second argument to lib must be a function.",
adsafe_missing_id: "ADSAFE violation: missing ID_.",
adsafe_name_a: "ADsafe name violation: '{a}'.",
adsafe_placement: "ADsafe script placement violation.",
adsafe_prefix_a: "ADsafe violation: An id must have a '{a}' prefix",
adsafe_script: "ADsafe script violation.",
adsafe_source: "ADsafe unapproved script source.",
adsafe_subscript_a: "ADsafe subscript '{a}'.",
adsafe_tag: "ADsafe violation: Disallowed tag '{a}'.",
already_defined: "'{a}' is already defined.",
and: "The '&&' subexpression should be wrapped in parens.",
assign_exception: "Do not assign to the exception parameter.",
assignment_function_expression: "Expected an assignment or " +
"function call and instead saw an expression.",
attribute_case_a: "Attribute '{a}' not all lower case.",
avoid_a: "Avoid '{a}'.",
bad_assignment: "Bad assignment.",
bad_color_a: "Bad hex color '{a}'.",
bad_constructor: "Bad constructor.",
bad_entity: "Bad entity.",
bad_html: "Bad HTML string",
bad_id_a: "Bad id: '{a}'.",
bad_in_a: "Bad for in variable '{a}'.",
bad_invocation: "Bad invocation.",
bad_name_a: "Bad name: '{a}'.",
bad_new: "Do not use 'new' for side effects.",
bad_number: "Bad number '{a}'.",
bad_operand: "Bad operand.",
bad_style: "Bad style.",
bad_type: "Bad type.",
bad_url_a: "Bad url '{a}'.",
bad_wrap: "Do not wrap function literals in parens unless they " +
"are to be immediately invoked.",
combine_var: "Combine this with the previous 'var' statement.",
conditional_assignment: "Expected a conditional expression and " +
"instead saw an assignment.",
confusing_a: "Confusing use of '{a}'.",
confusing_regexp: "Confusing regular expression.",
constructor_name_a: "A constructor name '{a}' should start with " +
"an uppercase letter.",
control_a: "Unexpected control character '{a}'.",
css: "A css file should begin with @charset 'UTF-8';",
dangling_a: "Unexpected dangling '_' in '{a}'.",
dangerous_comment: "Dangerous comment.",
deleted: "Only properties should be deleted.",
duplicate_a: "Duplicate '{a}'.",
empty_block: "Empty block.",
empty_case: "Empty case.",
empty_class: "Empty class.",
es5: "This is an ES5 feature.",
evil: "eval is evil.",
expected_a: "Expected '{a}'.",
expected_a_b: "Expected '{a}' and instead saw '{b}'.",
expected_a_b_from_c_d: "Expected '{a}' to match '{b}' from line " +
"{c} and instead saw '{d}'.",
expected_at_a: "Expected an at-rule, and instead saw @{a}.",
expected_a_at_b_c: "Expected '{a}' at column {b}, not column {c}.",
expected_attribute_a: "Expected an attribute, and instead saw [{a}].",
expected_attribute_value_a: "Expected an attribute value and " +
"instead saw '{a}'.",
expected_class_a: "Expected a class, and instead saw .{a}.",
expected_fraction_a: "Expected a number between 0 and 1 and " +
"instead saw '{a}'",
expected_id_a: "Expected an id, and instead saw #{a}.",
expected_identifier_a: "Expected an identifier and instead saw '{a}'.",
expected_identifier_a_reserved: "Expected an identifier and " +
"instead saw '{a}' (a reserved word).",
expected_linear_a: "Expected a linear unit and instead saw '{a}'.",
expected_lang_a: "Expected a lang code, and instead saw :{a}.",
expected_media_a: "Expected a CSS media type, and instead saw '{a}'.",
expected_name_a: "Expected a name and instead saw '{a}'.",
expected_nonstandard_style_attribute: "Expected a non-standard " +
"style attribute and instead saw '{a}'.",
expected_number_a: "Expected a number and instead saw '{a}'.",
expected_operator_a: "Expected an operator and instead saw '{a}'.",
expected_percent_a: "Expected a percentage and instead saw '{a}'",
expected_positive_a: "Expected a positive number and instead saw '{a}'",
expected_pseudo_a: "Expected a pseudo, and instead saw :{a}.",
expected_selector_a: "Expected a CSS selector, and instead saw {a}.",
expected_small_a: "Expected a small positive integer and instead saw '{a}'",
expected_space_a_b: "Expected exactly one space between '{a}' and '{b}'.",
expected_string_a: "Expected a string and instead saw '{a}'.",
expected_style_attribute: "Excepted a style attribute, and instead saw '{a}'.",
expected_style_pattern: "Expected a style pattern, and instead saw '{a}'.",
expected_tagname_a: "Expected a tagName, and instead saw {a}.",
expected_type_a: "Expected a type, and instead saw {a}.",
for_if: "The body of a for in should be wrapped in an if " +
"statement to filter unwanted properties from the prototype.",
function_block: "Function statements should not be placed in blocks." +
"Use a function expression or move the statement to the top of " +
"the outer function.",
function_eval: "The Function constructor is eval.",
function_loop: "Don't make functions within a loop.",
function_statement: "Function statements are not invocable." +
"Wrap the whole function invocation in parens.",
function_strict: "Use the function form of 'use strict'.",
html_confusion_a: "HTML confusion in regular expression '<{a}'.",
html_handlers: "Avoid HTML event handlers.",
identifier_function: "Expected an identifier in an assignment " +
"and instead saw a function invocation.",
implied_evil: "Implied eval is evil. Pass a function instead of a string.",
infix_in: "Unexpected 'in'. Compare with undefined, or use the " +
"hasOwnProperty method instead.",
insecure_a: "Insecure '{a}'.",
isNaN: "Use the isNaN function to compare with NaN.",
lang: "lang is deprecated.",
leading_decimal_a: "A leading decimal point can be confused with a dot: '.{a}'.",
missing_a: "Missing '{a}'.",
missing_a_after_b: "Missing '{a}' after '{b}'.",
missing_option: "Missing option value.",
missing_property: "Missing property name.",
missing_space_a_b: "Missing space between '{a}' and '{b}'.",
missing_url: "Missing url.",
missing_use_strict: "Missing 'use strict' statement.",
move_invocation: "Move the invocation into the parens that " +
"contain the function.",
move_var: "Move 'var' declarations to the top of the function.",
name_function: "Missing name in function statement.",
nested_comment: "Nested comment.",
not: "Nested not.",
not_a_constructor: "Do not use {a} as a constructor.",
not_a_defined: "'{a}' has not been fully defined yet.",
not_a_function: "'{a}' is not a function.",
not_a_label: "'{a}' is not a label.",
not_a_scope: "'{a}' is out of scope.",
not_greater: "'{a}' should not be greater than '{b}'.",
octal_a: "Don't use octal: '{a}'. Use '\\u....' instead.",
parameter_arguments_a: "Do not mutate parameter '{a}' when using 'arguments'.",
parameter_a_get_b: "Unexpected parameter '{a}' in get {b} function.",
parameter_set_a: "Expected parameter (value) in set {a} function.",
radix: "Missing radix parameter.",
read_only: "Read only.",
redefinition_a: "Redefinition of '{a}'.",
reserved_a: "Reserved name '{a}'.",
scanned_a_b: "{a} ({b}% scanned).",
slash_equal: "A regular expression literal can be confused with '/='.",
statement_block: "Expected to see a statement and instead saw a block.",
stopping: "Stopping.",
strange_loop: "Strange loop.",
strict: "Strict violation.",
subscript: "['{a}'] is better written in dot notation.",
sync_a: "Unexpected sync method: '{a}'.",
tag_a_in_b: "A '<{a}>' must be within '<{b}>'.",
todo_comment: "Unexpected TODO comment.",
too_long: "Line too long.",
too_many: "Too many errors.",
trailing_decimal_a: "A trailing decimal point can be confused " +
"with a dot: '.{a}'.",
type: "type is unnecessary.",
unclosed: "Unclosed string.",
unclosed_comment: "Unclosed comment.",
unclosed_regexp: "Unclosed regular expression.",
unescaped_a: "Unescaped '{a}'.",
unexpected_a: "Unexpected '{a}'.",
unexpected_char_a_b: "Unexpected character '{a}' in {b}.",
unexpected_comment: "Unexpected comment.",
unexpected_else: "Unexpected 'else' after 'return'.",
unexpected_label_a: "Unexpected label '{a}'.",
unexpected_property_a: "Unexpected /*property*/ '{a}'.",
unexpected_space_a_b: "Unexpected space between '{a}' and '{b}'.",
unexpected_typeof_a: "Unexpected 'typeof'. " +
"Use '===' to compare directly with {a}.",
unnecessary_initialize: "It is not necessary to initialize '{a}' " +
"to 'undefined'.",
unnecessary_use: "Unnecessary 'use strict'.",
unreachable_a_b: "Unreachable '{a}' after '{b}'.",
unrecognized_style_attribute_a: "Unrecognized style attribute '{a}'.",
unrecognized_tag_a: "Unrecognized tag '<{a}>'.",
unsafe: "Unsafe character.",
url: "JavaScript URL.",
use_array: "Use the array literal notation [].",
use_braces: "Spaces are hard to count. Use {{a}}.",
use_charAt: "Use the charAt method.",
use_object: "Use the object literal notation {}.",
use_or: "Use the || operator.",
use_param: "Use a named parameter.",
use_spaces: "Use spaces, not tabs.",
used_before_a: "'{a}' was used before it was defined.",
var_a_not: "Variable {a} was not declared correctly.",
weird_assignment: "Weird assignment.",
weird_condition: "Weird condition.",
weird_new: "Weird construction. Delete 'new'.",
weird_program: "Weird program.",
weird_relation: "Weird relation.",
weird_ternary: "Weird ternary.",
wrap_immediate: "Wrap an immediate function invocation in parentheses " +
"to assist the reader in understanding that the expression " +
"is the result of a function, and not the function itself.",
wrap_regexp: "Wrap the /regexp/ literal in parens to " +
"disambiguate the slash operator.",
write_is_wrong: "document.write can be a form of eval."
},
comments_off,
css_attribute_data,
css_any,
css_colorData = array_to_object([
"aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige",
"bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown",
"burlywood", "cadetblue", "chartreuse", "chocolate", "coral",
"cornflowerblue", "cornsilk", "crimson", "cyan", "darkblue",
"darkcyan", "darkgoldenrod", "darkgray", "darkgreen", "darkkhaki",
"darkmagenta", "darkolivegreen", "darkorange", "darkorchid",
"darkred", "darksalmon", "darkseagreen", "darkslateblue",
"darkslategray", "darkturquoise", "darkviolet", "deeppink",
"deepskyblue", "dimgray", "dodgerblue", "firebrick", "floralwhite",
"forestgreen", "fuchsia", "gainsboro", "ghostwhite", "gold",
"goldenrod", "gray", "green", "greenyellow", "honeydew", "hotpink",
"indianred", "indigo", "ivory", "khaki", "lavender",
"lavenderblush", "lawngreen", "lemonchiffon", "lightblue",
"lightcoral", "lightcyan", "lightgoldenrodyellow", "lightgreen",
"lightpink", "lightsalmon", "lightseagreen", "lightskyblue",
"lightslategray", "lightsteelblue", "lightyellow", "lime",
"limegreen", "linen", "magenta", "maroon", "mediumaquamarine",
"mediumblue", "mediumorchid", "mediumpurple", "mediumseagreen",
"mediumslateblue", "mediumspringgreen", "mediumturquoise",
"mediumvioletred", "midnightblue", "mintcream", "mistyrose",
"moccasin", "navajowhite", "navy", "oldlace", "olive", "olivedrab",
"orange", "orangered", "orchid", "palegoldenrod", "palegreen",
"paleturquoise", "palevioletred", "papayawhip", "peachpuff",
"peru", "pink", "plum", "powderblue", "purple", "red", "rosybrown",
"royalblue", "saddlebrown", "salmon", "sandybrown", "seagreen",
"seashell", "sienna", "silver", "skyblue", "slateblue", "slategray",
"snow", "springgreen", "steelblue", "tan", "teal", "thistle",
"tomato", "turquoise", "violet", "wheat", "white", "whitesmoke",
"yellow", "yellowgreen",
"activeborder", "activecaption", "appworkspace", "background",
"buttonface", "buttonhighlight", "buttonshadow", "buttontext",
"captiontext", "graytext", "highlight", "highlighttext",
"inactiveborder", "inactivecaption", "inactivecaptiontext",
"infobackground", "infotext", "menu", "menutext", "scrollbar",
"threeddarkshadow", "threedface", "threedhighlight",
"threedlightshadow", "threedshadow", "window", "windowframe",
"windowtext"
], true),
css_border_style,
css_break,
css_lengthData = {
'%': true,
'cm': true,
'em': true,
'ex': true,
'in': true,
'mm': true,
'pc': true,
'pt': true,
'px': true
},
css_media,
css_overflow,
descapes = {
'b': '\b',
't': '\t',
'n': '\n',
'f': '\f',
'r': '\r',
'"': '"',
'/': '/',
'\\': '\\',
'!': '!'
},
devel = array_to_object([
'alert', 'confirm', 'console', 'Debug', 'opera', 'prompt', 'WSH'
], false),
directive,
escapes = {
'\b': '\\b',
'\t': '\\t',
'\n': '\\n',
'\f': '\\f',
'\r': '\\r',
'\'': '\\\'',
'"' : '\\"',
'/' : '\\/',
'\\': '\\\\'
},
funct, // The current function, including the labels used in
// the function, as well as (breakage),
// (context), (loopage), (name), (params), (token),
// (vars), (verb)
functionicity = [
'closure', 'exception', 'global', 'label', 'outer', 'undef',
'unused', 'var'
],
functions, // All of the functions
global_funct, // The global body
global_scope, // The global scope
html_tag = {
a: {},
abbr: {},
acronym: {},
address: {},
applet: {},
area: {empty: true, parent: ' map '},
article: {},
aside: {},
audio: {},
b: {},
base: {empty: true, parent: ' head '},
bdo: {},
big: {},
blockquote: {},
body: {parent: ' html noframes '},
br: {empty: true},
button: {},
canvas: {parent: ' body p div th td '},
caption: {parent: ' table '},
center: {},
cite: {},
code: {},
col: {empty: true, parent: ' table colgroup '},
colgroup: {parent: ' table '},
command: {parent: ' menu '},
datalist: {},
dd: {parent: ' dl '},
del: {},
details: {},
dialog: {},
dfn: {},
dir: {},
div: {},
dl: {},
dt: {parent: ' dl '},
em: {},
embed: {},
fieldset: {},
figcaption: {parent: ' figure '},
figure: {},
font: {},
footer: {},
form: {},
frame: {empty: true, parent: ' frameset '},
frameset: {parent: ' html frameset '},
h1: {},
h2: {},
h3: {},
h4: {},
h5: {},
h6: {},
head: {parent: ' html '},
header: {},
hgroup: {},
hr: {empty: true},
'hta:application':
{empty: true, parent: ' head '},
html: {parent: '*'},
i: {},
iframe: {},
img: {empty: true},
input: {empty: true},
ins: {},
kbd: {},
keygen: {},
label: {},
legend: {parent: ' details fieldset figure '},
li: {parent: ' dir menu ol ul '},
link: {empty: true, parent: ' head '},
map: {},
mark: {},
menu: {},
meta: {empty: true, parent: ' head noframes noscript '},
meter: {},
nav: {},
noframes: {parent: ' html body '},
noscript: {parent: ' body head noframes '},
object: {},
ol: {},
optgroup: {parent: ' select '},
option: {parent: ' optgroup select '},
output: {},
p: {},
param: {empty: true, parent: ' applet object '},
pre: {},
progress: {},
q: {},
rp: {},
rt: {},
ruby: {},
samp: {},
script: {empty: true, parent: ' body div frame head iframe p pre span '},
section: {},
select: {},
small: {},
span: {},
source: {},
strong: {},
style: {parent: ' head ', empty: true},
sub: {},
summary: {parent: ' details '},
sup: {},
table: {},
tbody: {parent: ' table '},
td: {parent: ' tr '},
textarea: {},
tfoot: {parent: ' table '},
th: {parent: ' tr '},
thead: {parent: ' table '},
time: {},
title: {parent: ' head '},
tr: {parent: ' table tbody thead tfoot '},
tt: {},
u: {},
ul: {},
'var': {},
video: {}
},
ids, // HTML ids
in_block,
indent,
itself, // JSLint itself
json_mode,
lex, // the tokenizer
lines,
lookahead,
node = array_to_object([
'Buffer', 'clearInterval', 'clearTimeout', 'console', 'exports',
'global', 'module', 'process', 'querystring', 'require',
'setInterval', 'setTimeout', '__dirname', '__filename'
], false),
node_js,
numbery = array_to_object(['indexOf', 'lastIndexOf', 'search'], true),
next_token,
option,
predefined, // Global variables defined by option
prereg,
prev_token,
property,
regexp_flag = array_to_object(['g', 'i', 'm'], true),
return_this = function return_this() {
return this;
},
rhino = array_to_object([
'defineClass', 'deserialize', 'gc', 'help', 'load', 'loadClass',
'print', 'quit', 'readFile', 'readUrl', 'runCommand', 'seal',
'serialize', 'spawn', 'sync', 'toint32', 'version'
], false),
scope, // An object containing an object for each variable in scope
semicolon_coda = array_to_object([';', '"', '\'', ')'], true),
src,
stack,
// standard contains the global names that are provided by the
// ECMAScript standard.
standard = array_to_object([
'Array', 'Boolean', 'Date', 'decodeURI', 'decodeURIComponent',
'encodeURI', 'encodeURIComponent', 'Error', 'eval', 'EvalError',
'Function', 'isFinite', 'isNaN', 'JSON', 'Math', 'Number',
'Object', 'parseInt', 'parseFloat', 'RangeError', 'ReferenceError',
'RegExp', 'String', 'SyntaxError', 'TypeError', 'URIError'
], false),
strict_mode,
syntax = {},
tab,
token,
urls,
var_mode,
warnings,
windows = array_to_object([
'ActiveXObject', 'CScript', 'Debug', 'Enumerator', 'System',
'VBArray', 'WScript', 'WSH'
], false),
// xmode is used to adapt to the exceptions in html parsing.
// It can have these states:
// '' .js script file
// 'html'
// 'outer'
// 'script'
// 'style'
// 'scriptstring'
// 'styleproperty'
xmode,
xquote,
// Regular expressions. Some of these are stupidly long.
// unsafe comment or string
ax = /@cc|<\/?|script|\]\s*\]|<\s*!|</i,
// carriage return, carriage return linefeed, or linefeed
crlfx = /\r\n?|\n/,
// unsafe characters that are silently deleted by one or more browsers
cx = /[\u0000-\u0008\u000a-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/,
// query characters for ids
dx = /[\[\]\/\\"'*<>.&:(){}+=#]/,
// html token
hx = /^\s*(['"=>\/&#]|<(?:\/|\!(?:--)?)?|[a-zA-Z][a-zA-Z0-9_\-:]*|[0-9]+|--)/,
// identifier
ix = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/,
// javascript url
jx = /^(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i,
// star slash
lx = /\*\/|\/\*/,
// characters in strings that need escapement
nx = /[\u0000-\u001f'\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
// outer html token
ox = /[>&]|<[\/!]?|--/,
// attributes characters
qx = /[^a-zA-Z0-9+\-_\/. ]/,
// style
ssx = /^\s*([@#!"'};:\-%.=,+\[\]()*_]|[a-zA-Z][a-zA-Z0-9._\-]*|\/\*?|\d+(?:\.\d+)?|<\/)/,
sx = /^\s*([{}:#%.=,>+\[\]@()"';]|[*$\^~]=|[a-zA-Z_][a-zA-Z0-9_\-]*|[0-9]+|<\/|\/\*)/,
// sync
syx = /Sync$/,
// comment todo
tox = /^\W*to\s*do(?:\W|$)/i,
// token
tx = /^\s*([(){}\[\]\?.,:;'"~#@`]|={1,3}|\/(\*(jslint|properties|property|members?|globals?)?|=|\/)?|\*[\/=]?|\+(?:=|\++)?|-(?:=|-+)?|[\^%]=?|&[&=]?|\|[|=]?|>{1,3}=?|<(?:[\/=!]|\!(\[|--)?|<=?)?|\!(\!|==?)?|[a-zA-Z_$][a-zA-Z0-9_$]*|[0-9]+(?:[xX][0-9a-fA-F]+|\.[0-9]*)?(?:[eE][+\-]?[0-9]+)?)/,
// url badness
ux = /&|\+|\u00AD|\.\.|\/\*|%[^;]|base64|url|expression|data|mailto|script/i,
rx = {
outer: hx,
html: hx,
style: sx,
styleproperty: ssx
};
function F() {} // Used by Object.create
// Provide critical ES5 functions to ES3.
if (typeof Array.prototype.filter !== 'function') {
Array.prototype.filter = function (f) {
var i, length = this.length, result = [], value;
for (i = 0; i < length; i += 1) {
try {
value = this[i];
if (f(value)) {
result.push(value);
}
} catch (ignore) {
}
}
return result;
};
}
if (typeof Array.prototype.forEach !== 'function') {
Array.prototype.forEach = function (f) {
var i, length = this.length;
for (i = 0; i < length; i += 1) {
try {
f(this[i]);
} catch (ignore) {
}
}
};
}
if (typeof Array.isArray !== 'function') {
Array.isArray = function (o) {
return Object.prototype.toString.apply(o) === '[object Array]';
};
}
if (!Object.prototype.hasOwnProperty.call(Object, 'create')) {
Object.create = function (o) {
F.prototype = o;
return new F();
};
}
if (typeof Object.keys !== 'function') {
Object.keys = function (o) {
var array = [], key;
for (key in o) {
if (Object.prototype.hasOwnProperty.call(o, key)) {
array.push(key);
}
}
return array;
};
}
if (typeof String.prototype.entityify !== 'function') {
String.prototype.entityify = function () {
return this
.replace(/&/g, '&')
.replace(/</g, '<')
.replace(/>/g, '>');
};
}
if (typeof String.prototype.isAlpha !== 'function') {
String.prototype.isAlpha = function () {
return (this >= 'a' && this <= 'z\uffff') ||
(this >= 'A' && this <= 'Z\uffff');
};
}
if (typeof String.prototype.isDigit !== 'function') {
String.prototype.isDigit = function () {
return (this >= '0' && this <= '9');
};
}
if (typeof String.prototype.supplant !== 'function') {
String.prototype.supplant = function (o) {
return this.replace(/\{([^{}]*)\}/g, function (a, b) {
var replacement = o[b];
return typeof replacement === 'string' ||
typeof replacement === 'number' ? replacement : a;
});
};
}
function sanitize(a) {
// Escapify a troublesome character.
return escapes[a] ||
'\\u' + ('0000' + a.charCodeAt().toString(16)).slice(-4);
}
function add_to_predefined(group) {
Object.keys(group).forEach(function (name) {
predefined[name] = group[name];
});
}
function assume() {
if (!option.safe) {
if (option.rhino) {
add_to_predefined(rhino);
option.rhino = false;
}
if (option.devel) {
add_to_predefined(devel);
option.devel = false;
}
if (option.browser) {
add_to_predefined(browser);
option.browser = false;
}
if (option.windows) {
add_to_predefined(windows);
option.windows = false;
}
if (option.node) {
add_to_predefined(node);
option.node = false;
node_js = true;
}
}
}
// Produce an error warning.
function artifact(tok) {
if (!tok) {
tok = next_token;
}
return tok.number || tok.string;
}
function quit(message, line, character) {
throw {
name: 'JSLintError',
line: line,
character: character,
message: bundle.scanned_a_b.supplant({
a: message,
b: Math.floor((line / lines.length) * 100)
})
};
}
function warn(message, offender, a, b, c, d) {
var character, line, warning;
offender = offender || next_token; // ~~
line = offender.line || 0;
character = offender.from || 0;
warning = {
id: '(error)',
raw: bundle[message] || message,
evidence: lines[line - 1] || '',
line: line,
character: character,
a: a || (offender.id === '(number)'
? String(offender.number)
: offender.string),
b: b,
c: c,
d: d
};
warning.reason = warning.raw.supplant(warning);
JSLINT.errors.push(warning);
if (option.passfail) {
quit(bundle.stopping, line, character);
}
warnings += 1;
if (warnings >= option.maxerr) {
quit(bundle.too_many, line, character);
}
return warning;
}
function warn_at(message, line, character, a, b, c, d) {
return warn(message, {
line: line,
from: character
}, a, b, c, d);
}
function stop(message, offender, a, b, c, d) {
var warning = warn(message, offender, a, b, c, d);
quit(bundle.stopping, warning.line, warning.character);
}
function stop_at(message, line, character, a, b, c, d) {
return stop(message, {
line: line,
from: character
}, a, b, c, d);
}
function expected_at(at) {
if (!option.white && next_token.from !== at) {
warn('expected_a_at_b_c', next_token, '', at,
next_token.from);
}
}
function aint(it, name, expected) {
if (it[name] !== expected) {
warn('expected_a_b', it, expected, it[name]);
return true;
}
return false;
}
// lexical analysis and token construction
lex = (function lex() {
var character, c, from, length, line, pos, source_row;
// Private lex methods
function next_line() {
var at;
if (line >= lines.length) {
return false;
}
character = 1;
source_row = lines[line];
line += 1;
at = source_row.search(/\t/);
if (at >= 0) {
if (option.white) {
source_row = source_row.replace(/\t/g, ' ');
} else {
warn_at('use_spaces', line, at + 1);
}
}
at = source_row.search(cx);
if (at >= 0) {
warn_at('unsafe', line, at);
}
if (option.maxlen && option.maxlen < source_row.length) {
warn_at('too_long', line, source_row.length);
}
return true;
}
// Produce a token object. The token inherits from a syntax symbol.
function it(type, value) {
var id, the_token;
if (type === '(string)' || type === '(range)') {
if (jx.test(value)) {
warn_at('url', line, from);
}
}
the_token = Object.create(syntax[(
type === '(punctuator)' || (type === '(identifier)' &&
Object.prototype.hasOwnProperty.call(syntax, value))
? value
: type
)] || syntax['(error)']);
if (type === '(identifier)') {
the_token.identifier = true;
if (value === '__iterator__' || value === '__proto__') {
stop_at('reserved_a', line, from, value);
} else if (!option.nomen &&
(value.charAt(0) === '_' ||
value.charAt(value.length - 1) === '_')) {
warn_at('dangling_a', line, from, value);
}
}
if (type === '(number)') {
the_token.number = +value;
} else if (value !== undefined) {
the_token.string = String(value);
}
the_token.line = line;
the_token.from = from;
the_token.thru = character;
id = the_token.id;
prereg = id && (
('(,=:[!&|?{};~+-*%^<>'.indexOf(id.charAt(id.length - 1)) >= 0) ||
id === 'return' || id === 'case'
);
return the_token;
}
function match(x) {
var exec = x.exec(source_row), first;
if (exec) {
length = exec[0].length;
first = exec[1];
c = first.charAt(0);
source_row = source_row.slice(length);
from = character + length - first.length;
character += length;
return first;
}
}
function string(x) {
var c, pos = 0, r = '', result;
function hex(n) {
var i = parseInt(source_row.substr(pos + 1, n), 16);
pos += n;
if (i >= 32 && i <= 126 &&
i !== 34 && i !== 92 && i !== 39) {
warn_at('unexpected_a', line, character, '\\');
}
character += n;
c = String.fromCharCode(i);
}
if (json_mode && x !== '"') {
warn_at('expected_a', line, character, '"');
}
if (xquote === x || (xmode === 'scriptstring' && !xquote)) {
return it('(punctuator)', x);
}
for (;;) {
while (pos >= source_row.length) {
pos = 0;
if (xmode !== 'html' || !next_line()) {
stop_at('unclosed', line, from);
}
}
c = source_row.charAt(pos);
if (c === x) {
character += 1;
source_row = source_row.slice(pos + 1);
result = it('(string)', r);
result.quote = x;
return result;
}
if (c < ' ') {
if (c === '\n' || c === '\r') {
break;
}
warn_at('control_a', line, character + pos,
source_row.slice(0, pos));
} else if (c === xquote) {
warn_at('bad_html', line, character + pos);
} else if (c === '<') {
if (option.safe && xmode === 'html') {
warn_at('adsafe_a', line, character + pos, c);
} else if (source_row.charAt(pos + 1) === '/' && (xmode || option.safe)) {
warn_at('expected_a_b', line, character,
'<\\/', '</');
} else if (source_row.charAt(pos + 1) === '!' && (xmode || option.safe)) {
warn_at('unexpected_a', line, character, '<!');
}
} else if (c === '\\') {
if (xmode === 'html') {
if (option.safe) {
warn_at('adsafe_a', line, character + pos, c);
}
} else if (xmode === 'styleproperty') {
pos += 1;
character += 1;
c = source_row.charAt(pos);
if (c !== x) {
warn_at('unexpected_a', line, character, '\\');
}
} else {
pos += 1;
character += 1;
c = source_row.charAt(pos);
switch (c) {
case '':
if (!option.es5) {
warn_at('es5', line, character);
}
next_line();
pos = -1;
break;
case xquote:
warn_at('bad_html', line, character + pos);
break;
case '\'':
if (json_mode) {
warn_at('unexpected_a', line, character, '\\\'');
}
break;
case 'u':
hex(4);
break;
case 'v':
if (json_mode) {
warn_at('unexpected_a', line, character, '\\v');
}
c = '\v';
break;
case 'x':
if (json_mode) {
warn_at('unexpected_a', line, character, '\\x');
}
hex(2);
break;
default:
if (typeof descapes[c] !== 'string') {
warn_at(c >= '0' && c <= '7' ? 'octal_a' : 'unexpected_a',
line, character, '\\' + c);
} else {
c = descapes[c];
}
}
}
}
r += c;
character += 1;
pos += 1;
}
}
function number(snippet) {
var digit;
if (xmode !== 'style' && xmode !== 'styleproperty' &&
source_row.charAt(0).isAlpha()) {
warn_at('expected_space_a_b',
line, character, c, source_row.charAt(0));
}
if (c === '0') {
digit = snippet.charAt(1);
if (digit.isDigit()) {
if (token.id !== '.' && xmode !== 'styleproperty') {
warn_at('unexpected_a', line, character, snippet);
}
} else if (json_mode && (digit === 'x' || digit === 'X')) {
warn_at('unexpected_a', line, character, '0x');
}
}
if (snippet.slice(snippet.length - 1) === '.') {
warn_at('trailing_decimal_a', line, character, snippet);
}
if (xmode !== 'style') {
digit = +snippet;
if (!isFinite(digit)) {
warn_at('bad_number', line, character, snippet);
}
snippet = digit;
}
return it('(number)', snippet);
}
function comment(snippet) {
if (comments_off || src || (xmode && xmode !== 'script' &&
xmode !== 'style' && xmode !== 'styleproperty')) {
warn_at('unexpected_comment', line, character);
} else if (xmode === 'script' && /<\//i.test(source_row)) {
warn_at('unexpected_a', line, character, '<\/');
} else if (option.safe && ax.test(snippet)) {
warn_at('dangerous_comment', line, character);
} else if (!option.todo && tox.test(snippet)) {
warn_at('todo_comment', line, character);
}
}
function regexp() {
var b,
bit,
captures = 0,
depth = 0,
flag = '',
high,
letter,
length = 0,
low,
potential,
quote,
result;
for (;;) {
b = true;
c = source_row.charAt(length);
length += 1;
switch (c) {
case '':
stop_at('unclosed_regexp', line, from);
return;
case '/':
if (depth > 0) {
warn_at('unescaped_a', line, from + length, '/');
}
c = source_row.slice(0, length - 1);
potential = Object.create(regexp_flag);
for (;;) {
letter = source_row.charAt(length);
if (potential[letter] !== true) {
break;
}
potential[letter] = false;
length += 1;
flag += letter;
}
if (source_row.charAt(length).isAlpha()) {
stop_at('unexpected_a', line, from, source_row.charAt(length));
}
character += length;
source_row = source_row.slice(length);
quote = source_row.charAt(0);
if (quote === '/' || quote === '*') {
stop_at('confusing_regexp', line, from);
}
result = it('(regexp)', c);
result.flag = flag;
return result;
case '\\':
c = source_row.charAt(length);
if (c < ' ') {
warn_at('control_a', line, from + length, String(c));
} else if (c === '<') {
warn_at(bundle.unexpected_a, line, from + length, '\\');
}
length += 1;
break;
case '(':
depth += 1;
b = false;
if (source_row.charAt(length) === '?') {
length += 1;
switch (source_row.charAt(length)) {
case ':':
case '=':
case '!':
length += 1;
break;
default:
warn_at(bundle.expected_a_b, line, from + length,
':', source_row.charAt(length));
}
} else {
captures += 1;
}
break;
case '|':
b = false;
break;
case ')':
if (depth === 0) {
warn_at('unescaped_a', line, from + length, ')');
} else {
depth -= 1;
}
break;
case ' ':
pos = 1;
while (source_row.charAt(length) === ' ') {
length += 1;
pos += 1;
}
if (pos > 1) {
warn_at('use_braces', line, from + length, pos);
}
break;
case '[':
c = source_row.charAt(length);
if (c === '^') {
length += 1;
if (!option.regexp) {
warn_at('insecure_a', line, from + length, c);
} else if (source_row.charAt(length) === ']') {
stop_at('unescaped_a', line, from + length, '^');
}
}
bit = false;
if (c === ']') {
warn_at('empty_class', line, from + length - 1);
bit = true;
}
klass: do {
c = source_row.charAt(length);
length += 1;
switch (c) {
case '[':
case '^':
warn_at('unescaped_a', line, from + length, c);
bit = true;
break;
case '-':
if (bit) {
bit = false;
} else {
warn_at('unescaped_a', line, from + length, '-');
bit = true;
}
break;
case ']':
if (!bit) {
warn_at('unescaped_a', line, from + length - 1, '-');
}
break klass;
case '\\':
c = source_row.charAt(length);
if (c < ' ') {
warn_at(bundle.control_a, line, from + length, String(c));
} else if (c === '<') {
warn_at(bundle.unexpected_a, line, from + length, '\\');
}
length += 1;
bit = true;
break;
case '/':
warn_at('unescaped_a', line, from + length - 1, '/');
bit = true;
break;
case '<':
if (xmode === 'script') {
c = source_row.charAt(length);
if (c === '!' || c === '/') {
warn_at(bundle.html_confusion_a, line,
from + length, c);
}
}
bit = true;
break;
default:
bit = true;
}
} while (c);
break;
case '.':
if (!option.regexp) {
warn_at('insecure_a', line, from + length, c);
}
break;
case ']':
case '?':
case '{':
case '}':
case '+':
case '*':
warn_at('unescaped_a', line, from + length, c);
break;
case '<':
if (xmode === 'script') {
c = source_row.charAt(length);
if (c === '!' || c === '/') {
warn_at(bundle.html_confusion_a, line, from + length, c);
}
}
break;
}
if (b) {
switch (source_row.charAt(length)) {
case '?':
case '+':
case '*':
length += 1;
if (source_row.charAt(length) === '?') {
length += 1;
}
break;
case '{':
length += 1;
c = source_row.charAt(length);
if (c < '0' || c > '9') {
warn_at(bundle.expected_number_a, line,
from + length, c);
}
length += 1;
low = +c;
for (;;) {
c = source_row.charAt(length);
if (c < '0' || c > '9') {
break;
}
length += 1;
low = +c + (low * 10);
}
high = low;
if (c === ',') {
length += 1;
high = Infinity;
c = source_row.charAt(length);
if (c >= '0' && c <= '9') {
length += 1;
high = +c;
for (;;) {
c = source_row.charAt(length);
if (c < '0' || c > '9') {
break;
}
length += 1;
high = +c + (high * 10);
}
}
}
if (source_row.charAt(length) !== '}') {
warn_at(bundle.expected_a_b, line, from + length,
'}', c);
} else {
length += 1;
}
if (source_row.charAt(length) === '?') {
length += 1;
}
if (low > high) {
warn_at(bundle.not_greater, line, from + length,
low, high);
}
break;
}
}
}
c = source_row.slice(0, length - 1);
character += length;
source_row = source_row.slice(length);
return it('(regexp)', c);
}
// Public lex methods
return {
init: function (source) {
if (typeof source === 'string') {
lines = source.split(crlfx);
} else {
lines = source;
}
line = 0;
next_line();
from = 1;
},
range: function (begin, end) {
var c, value = '';
from = character;
if (source_row.charAt(0) !== begin) {
stop_at('expected_a_b', line, character, begin,
source_row.charAt(0));
}
for (;;) {
source_row = source_row.slice(1);
character += 1;
c = source_row.charAt(0);
switch (c) {
case '':
stop_at('missing_a', line, character, c);
break;
case end:
source_row = source_row.slice(1);
character += 1;
return it('(range)', value);
case xquote:
case '\\':
warn_at('unexpected_a', line, character, c);
break;
}
value += c;
}
},
// token -- this is called by advance to get the next token.
token: function () {
var c, i, snippet;
for (;;) {
while (!source_row) {
if (!next_line()) {
return it('(end)');
}
}
while (xmode === 'outer') {
i = source_row.search(ox);
if (i === 0) {
break;
} else if (i > 0) {
character += i;
source_row = source_row.slice(i);
break;
} else {
if (!next_line()) {
return it('(end)', '');
}
}
}
snippet = match(rx[xmode] || tx);
if (!snippet) {
if (source_row) {
if (source_row.charAt(0) === ' ') {
if (!option.white) {
warn_at('unexpected_a', line, character,
'(space)');
}
character += 1;
source_row = '';
} else {
stop_at('unexpected_a', line, character,
source_row.charAt(0));
}
}
} else {
// identifier
c = snippet.charAt(0);
if (c.isAlpha() || c === '_' || c === '$') {
return it('(identifier)', snippet);
}
// number
if (c.isDigit()) {
return number(snippet);
}
switch (snippet) {
// string
case '"':
case "'":
return string(snippet);
// // comment
case '//':
comment(source_row);
source_row = '';
break;
// /* comment
case '/*':
for (;;) {
i = source_row.search(lx);
if (i >= 0) {
break;
}
comment(source_row);
if (!next_line()) {
stop_at('unclosed_comment', line, character);
}
}
comment(source_row.slice(0, i));
character += i + 2;
if (source_row.charAt(i) === '/') {
stop_at('nested_comment', line, character);
}
source_row = source_row.slice(i + 2);
break;
case '':
break;
// /
case '/':
if (token.id === '/=') {
stop_at(
bundle.slash_equal,
line,
from
);
}
return prereg
? regexp()
: it('(punctuator)', snippet);
// punctuator
case '<!--':
length = line;
// c = character;
for (;;) {
i = source_row.indexOf('--');
if (i >= 0) {
break;
}
i = source_row.indexOf('<!');
if (i >= 0) {
stop_at('nested_comment',
line, character + i);
}
if (!next_line()) {
stop_at('unclosed_comment', length, c);
}
}
length = source_row.indexOf('<!');
if (length >= 0 && length < i) {
stop_at('nested_comment',
line, character + length);
}
character += i;
if (source_row.charAt(i + 2) !== '>') {
stop_at('expected_a', line, character, '-->');
}
character += 3;
source_row = source_row.slice(i + 3);
break;
case '#':
if (xmode === 'html' || xmode === 'styleproperty') {
for (;;) {
c = source_row.charAt(0);
if ((c < '0' || c > '9') &&
(c < 'a' || c > 'f') &&
(c < 'A' || c > 'F')) {
break;
}
character += 1;
source_row = source_row.slice(1);
snippet += c;
}
if (snippet.length !== 4 && snippet.length !== 7) {
warn_at('bad_color_a', line,
from + length, snippet);
}
return it('(color)', snippet);
}
return it('(punctuator)', snippet);
default:
if (xmode === 'outer' && c === '&') {
character += 1;
source_row = source_row.slice(1);
for (;;) {
c = source_row.charAt(0);
character += 1;
source_row = source_row.slice(1);
if (c === ';') {
break;
}
if (!((c >= '0' && c <= '9') ||
(c >= 'a' && c <= 'z') ||
c === '#')) {
stop_at('bad_entity', line, from + length,
character);
}
}
break;
}
return it('(punctuator)', snippet);
}
}
}
}
};
}());
function add_label(token, kind, name) {
// Define the symbol in the current function in the current scope.
name = name || token.string;
// Global variables cannot be created in the safe subset. If a global variable
// already exists, do nothing. If it is predefined, define it.
if (funct === global_funct) {
if (option.safe) {
warn('adsafe_a', token, name);
}
if (typeof global_funct[name] !== 'string') {
token.writeable = typeof predefined[name] === 'boolean'
? predefined[name]
: true;
token.funct = funct;
global_scope[name] = token;
}
if (kind === 'becoming') {
kind = 'var';
}
// Ordinary variables.
} else {
// Warn if the variable already exists.
if (typeof funct[name] === 'string') {
if (funct[name] === 'undef') {
if (!option.undef) {
warn('used_before_a', token, name);
}
kind = 'var';
} else {
warn('already_defined', token, name);
}
} else {
// Add the symbol to the current function.
token.funct = funct;
token.writeable = true;
scope[name] = token;
}
}
funct[name] = kind;
}
function peek(distance) {
// Peek ahead to a future token. The distance is how far ahead to look. The
// default is the next token.
var found, slot = 0;
distance = distance || 0;
while (slot <= distance) {
found = lookahead[slot];
if (!found) {
found = lookahead[slot] = lex.token();
}
slot += 1;
}
return found;
}
function advance(id, match) {
// Produce the next token, also looking for programming errors.
if (indent) {
// If indentation checking was requested, then inspect all of the line breakings.
// The var statement is tricky because the names might be aligned or not. We
// look at the first line break after the var to determine the programmer's
// intention.
if (var_mode && next_token.line !== token.line) {
if ((var_mode !== indent || !next_token.edge) &&
next_token.from === indent.at -
(next_token.edge ? option.indent : 0)) {
var dent = indent;
for (;;) {
dent.at -= option.indent;
if (dent === var_mode) {
break;
}
dent = dent.was;
}
dent.open = false;
}
var_mode = null;
}
if (next_token.id === '?' && indent.mode === ':' &&
token.line !== next_token.line) {
indent.at -= option.indent;
}
if (indent.open) {
// If the token is an edge.
if (next_token.edge) {
if (next_token.edge === 'label') {
expected_at(1);
} else if (next_token.edge === 'case' || indent.mode === 'statement') {
expected_at(indent.at - option.indent);
} else if (indent.mode !== 'array' || next_token.line !== token.line) {
expected_at(indent.at);
}
// If the token is not an edge, but is the first token on the line.
} else if (next_token.line !== token.line) {
if (next_token.from < indent.at + (indent.mode ===
'expression' ? 0 : option.indent)) {
expected_at(indent.at + option.indent);
}
indent.wrap = true;
}
} else if (next_token.line !== token.line) {
if (next_token.edge) {
expected_at(indent.at);
} else {
indent.wrap = true;
if (indent.mode === 'statement' || indent.mode === 'var') {
expected_at(indent.at + option.indent);
} else if (next_token.from < indent.at + (indent.mode ===
'expression' ? 0 : option.indent)) {
expected_at(indent.at + option.indent);
}
}
}
}
switch (token.id) {
case '(number)':
if (next_token.id === '.') {
warn('trailing_decimal_a');
}
break;
case '-':
if (next_token.id === '-' || next_token.id === '--') {
warn('confusing_a');
}
break;
case '+':
if (next_token.id === '+' || next_token.id === '++') {
warn('confusing_a');
}
break;
}
if (token.id === '(string)' || token.identifier) {
anonname = token.string;
}
if (id && next_token.id !== id) {
if (match) {
warn('expected_a_b_from_c_d', next_token, id,
match.id, match.line, artifact());
} else if (!next_token.identifier || next_token.string !== id) {
warn('expected_a_b', next_token, id, artifact());
}
}
prev_token = token;
token = next_token;
next_token = lookahead.shift() || lex.token();
}
function advance_identifier(string) {
if (next_token.identifier && next_token.string === string) {
advance();
} else {
warn('expected_a_b', next_token, string, artifact());
}
}
function do_safe() {
if (option.adsafe) {
option.safe = true;
}
if (option.safe) {
option.browser =
option['continue'] =
option.css =
option.debug =
option.devel =
option.evil =
option.forin =
option.newcap =
option.nomen =
option.on =
option.rhino =
option.sloppy =
option.sub =
option.undef =
option.windows = false;
delete predefined.Array;
delete predefined.Date;
delete predefined.Function;
delete predefined.Object;
delete predefined['eval'];
add_to_predefined({
ADSAFE: false,
lib: false
});
}
}
function do_globals() {
var name, writeable;
for (;;) {
if (next_token.id !== '(string)' && !next_token.identifier) {
return;
}
name = next_token.string;
advance();
writeable = false;
if (next_token.id === ':') {
advance(':');
switch (next_token.id) {
case 'true':
writeable = predefined[name] !== false;
advance('true');
break;
case 'false':
advance('false');
break;
default:
stop('unexpected_a');
}
}
predefined[name] = writeable;
if (next_token.id !== ',') {
return;
}
advance(',');
}
}
function do_jslint() {
var name, value;
while (next_token.id === '(string)' || next_token.identifier) {
name = next_token.string;
if (!allowed_option[name]) {
stop('unexpected_a');
}
advance();
if (next_token.id !== ':') {
stop('expected_a_b', next_token, ':', artifact());
}
advance(':');
if (typeof allowed_option[name] === 'number') {
value = next_token.number;
if (value > allowed_option[name] || value <= 0 ||
Math.floor(value) !== value) {
stop('expected_small_a');
}
option[name] = value;
} else {
if (next_token.id === 'true') {
option[name] = true;
} else if (next_token.id === 'false') {
option[name] = false;
} else {
stop('unexpected_a');
}
}
advance();
if (next_token.id === ',') {
advance(',');
}
}
assume();
}
function do_properties() {
var name;
option.properties = true;
for (;;) {
if (next_token.id !== '(string)' && !next_token.identifier) {
return;
}
name = next_token.string;
advance();
if (next_token.id === ':') {
for (;;) {
advance();
if (next_token.id !== '(string)' && !next_token.identifier) {
break;
}
}
}
property[name] = 0;
if (next_token.id !== ',') {
return;
}
advance(',');
}
}
directive = function directive() {
var command = this.id,
old_comments_off = comments_off,
old_indent = indent;
comments_off = true;
indent = null;
if (next_token.line === token.line && next_token.from === token.thru) {
warn('missing_space_a_b', next_token, artifact(token), artifact());
}
if (lookahead.length > 0) {
warn('unexpected_a', this);
}
switch (command) {
case '/*properties':
case '/*property':
case '/*members':
case '/*member':
do_properties();
break;
case '/*jslint':
if (option.safe) {
warn('adsafe_a', this);
}
do_jslint();
break;
case '/*globals':
case '/*global':
if (option.safe) {
warn('adsafe_a', this);
}
do_globals();
break;
default:
stop('unexpected_a', this);
}
comments_off = old_comments_off;
advance('*/');
indent = old_indent;
};
// Indentation intention
function edge(mode) {
next_token.edge = indent ? indent.open && (mode || 'edge') : '';
}
function step_in(mode) {
var open;
if (typeof mode === 'number') {
indent = {
at: +mode,
open: true,
was: indent
};
} else if (!indent) {
indent = {
at: 1,
mode: 'statement',
open: true
};
} else if (mode === 'statement') {
indent = {
at: indent.at,
open: true,
was: indent
};
} else {
open = mode === 'var' || next_token.line !== token.line;
indent = {
at: (open || mode === 'control'
? indent.at + option.indent
: indent.at) + (indent.wrap ? option.indent : 0),
mode: mode,
open: open,
was: indent
};
if (mode === 'var' && open) {
var_mode = indent;
}
}
}
function step_out(id, symbol) {
if (id) {
if (indent && indent.open) {
indent.at -= option.indent;
edge();
}
advance(id, symbol);
}
if (indent) {
indent = indent.was;
}
}
// Functions for conformance of whitespace.
function one_space(left, right) {
left = left || token;
right = right || next_token;
if (right.id !== '(end)' && !option.white &&
(token.line !== right.line ||
token.thru + 1 !== right.from)) {
warn('expected_space_a_b', right, artifact(token), artifact(right));
}
}
function one_space_only(left, right) {
left = left || token;
right = right || next_token;
if (right.id !== '(end)' && (left.line !== right.line ||
(!option.white && left.thru + 1 !== right.from))) {
warn('expected_space_a_b', right, artifact(left), artifact(right));
}
}
function no_space(left, right) {
left = left || token;
right = right || next_token;
if ((!option.white || xmode === 'styleproperty' || xmode === 'style') &&
left.thru !== right.from && left.line === right.line) {
warn('unexpected_space_a_b', right, artifact(left), artifact(right));
}
}
function no_space_only(left, right) {
left = left || token;
right = right || next_token;
if (right.id !== '(end)' && (left.line !== right.line ||
(!option.white && left.thru !== right.from))) {
warn('unexpected_space_a_b', right, artifact(left), artifact(right));
}
}
function spaces(left, right) {
if (!option.white) {
left = left || token;
right = right || next_token;
if (left.thru === right.from && left.line === right.line) {
warn('missing_space_a_b', right, artifact(left), artifact(right));
}
}
}
function comma() {
if (next_token.id !== ',') {
warn_at('expected_a_b', token.line, token.thru, ',', artifact());
} else {
if (!option.white) {
no_space_only();
}
advance(',');
spaces();
}
}
function semicolon() {
if (next_token.id !== ';') {
warn_at('expected_a_b', token.line, token.thru, ';', artifact());
} else {
if (!option.white) {
no_space_only();
}
advance(';');
if (semicolon_coda[next_token.id] !== true) {
spaces();
}
}
}
function use_strict() {
if (next_token.string === 'use strict') {
if (strict_mode) {
warn('unnecessary_use');
}
edge();
advance();
semicolon();
strict_mode = true;
option.undef = false;
return true;
}
return false;
}
function are_similar(a, b) {
if (a === b) {
return true;
}
if (Array.isArray(a)) {
if (Array.isArray(b) && a.length === b.length) {
var i;
for (i = 0; i < a.length; i += 1) {
if (!are_similar(a[i], b[i])) {
return false;
}
}
return true;
}
return false;
}
if (Array.isArray(b)) {
return false;
}
if (a.id === '(number)' && b.id === '(number)') {
return a.number === b.number;
}
if (a.arity === b.arity && a.string === b.string) {
switch (a.arity) {
case 'prefix':
case 'suffix':
case undefined:
return a.id === b.id && are_similar(a.first, b.first) &&
a.id !== '{' && a.id !== '[';
case 'infix':
return are_similar(a.first, b.first) &&
are_similar(a.second, b.second);
case 'ternary':
return are_similar(a.first, b.first) &&
are_similar(a.second, b.second) &&
are_similar(a.third, b.third);
case 'function':
case 'regexp':
return false;
default:
return true;
}
} else {
if (a.id === '.' && b.id === '[' && b.arity === 'infix') {
return a.second.string === b.second.string && b.second.id === '(string)';
}
if (a.id === '[' && a.arity === 'infix' && b.id === '.') {
return a.second.string === b.second.string && a.second.id === '(string)';
}
}
return false;
}
// This is the heart of JSLINT, the Pratt parser. In addition to parsing, it
// is looking for ad hoc lint patterns. We add .fud to Pratt's model, which is
// like .nud except that it is only used on the first token of a statement.
// Having .fud makes it much easier to define statement-oriented languages like
// JavaScript. I retained Pratt's nomenclature.
// .nud Null denotation
// .fud First null denotation
// .led Left denotation
// lbp Left binding power
// rbp Right binding power
// They are elements of the parsing method called Top Down Operator Precedence.
function expression(rbp, initial) {
// rbp is the right binding power.
// initial indicates that this is the first expression of a statement.
var left;
if (next_token.id === '(end)') {
stop('unexpected_a', token, next_token.id);
}
advance();
if (option.safe && scope[token.string] &&
scope[token.string] === global_scope[token.string] &&
(next_token.id !== '(' && next_token.id !== '.')) {
warn('adsafe_a', token);
}
if (initial) {
anonname = 'anonymous';
funct['(verb)'] = token.string;
}
if (initial === true && token.fud) {
left = token.fud();
} else {
if (token.nud) {
left = token.nud();
} else {
if (next_token.id === '(number)' && token.id === '.') {
warn('leading_decimal_a', token, artifact());
advance();
return token;
}
stop('expected_identifier_a', token, token.id);
}
while (rbp < next_token.lbp) {
advance();
if (token.led) {
left = token.led(left);
} else {
stop('expected_operator_a', token, token.id);
}
}
}
return left;
}
// Functional constructors for making the symbols that will be inherited by
// tokens.
function symbol(s, p) {
var x = syntax[s];
if (!x || typeof x !== 'object') {
syntax[s] = x = {
id: s,
lbp: p || 0,
string: s
};
}
return x;
}
function postscript(x) {
x.postscript = true;
return x;
}
function ultimate(s) {
var x = symbol(s, 0);
x.from = 1;
x.thru = 1;
x.line = 0;
x.edge = 'edge';
x.string = s;
return postscript(x);
}
function stmt(s, f) {
var x = symbol(s);
x.identifier = x.reserved = true;
x.fud = f;
return x;
}
function labeled_stmt(s, f) {
var x = stmt(s, f);
x.labeled = true;
}
function disrupt_stmt(s, f) {
var x = stmt(s, f);
x.disrupt = true;
}
function reserve_name(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);
reserve_name(x);
x.nud = function () {
var that = this;
that.arity = 'prefix';
if (typeof f === 'function') {
that = f(that);
if (that.arity !== 'prefix') {
return that;
}
} else {
if (s === 'typeof') {
one_space();
} else {
no_space_only();
}
that.first = expression(150);
}
switch (that.id) {
case '++':
case '--':
if (!option.plusplus) {
warn('unexpected_a', that);
} else if ((!that.first.identifier || that.first.reserved) &&
that.first.id !== '.' && that.first.id !== '[') {
warn('bad_operand', that);
}
break;
default:
if (that.first.arity === 'prefix' ||
that.first.arity === 'function') {
warn('unexpected_a', that);
}
}
return that;
};
return x;
}
function type(s, t, nud) {
var x = symbol(s);
x.arity = t;
if (nud) {
x.nud = nud;
}
return x;
}
function reserve(s, f) {
var x = symbol(s);
x.identifier = x.reserved = true;
if (typeof f === 'function') {
x.nud = f;
}
return x;
}
function constant(name) {
var x = reserve(name);
x.string = name;
x.nud = return_this;
return x;
}
function reservevar(s, v) {
return reserve(s, function () {
if (typeof v === 'function') {
v(this);
}
return this;
});
}
function infix(s, p, f, w) {
var x = symbol(s, p);
reserve_name(x);
x.led = function (left) {
this.arity = 'infix';
if (!w) {
spaces(prev_token, token);
spaces();
}
if (!option.bitwise && this.bitwise) {
warn('unexpected_a', this);
}
if (typeof f === 'function') {
return f(left, this);
}
this.first = left;
this.second = expression(p);
return this;
};
return x;
}
function expected_relation(node, message) {
if (node.assign) {
warn(message || bundle.conditional_assignment, node);
}
return node;
}
function expected_condition(node, message) {
switch (node.id) {
case '[':
case '-':
if (node.arity !== 'infix') {
warn(message || bundle.weird_condition, node);
}
break;
case 'false':
case 'function':
case 'Infinity':
case 'NaN':
case 'null':
case 'true':
case 'undefined':
case 'void':
case '(number)':
case '(regexp)':
case '(string)':
case '{':
warn(message || bundle.weird_condition, node);
break;
case '(':
if (node.first.id === 'new' ||
(node.first.string === 'Boolean') ||
(node.first.id === '.' &&
numbery[node.first.second.string] === true)) {
warn(message || bundle.weird_condition, node);
}
break;
}
return node;
}
function check_relation(node) {
switch (node.arity) {
case 'prefix':
switch (node.id) {
case '{':
case '[':
warn('unexpected_a', node);
break;
case '!':
warn('confusing_a', node);
break;
}
break;
case 'function':
case 'regexp':
warn('unexpected_a', node);
break;
default:
if (node.id === 'NaN') {
warn('isNaN', node);
}
}
return node;
}
function relation(s, eqeq) {
return infix(s, 100, function (left, that) {
check_relation(left);
if (eqeq && !option.eqeq) {
warn('expected_a_b', that, eqeq, that.id);
}
var right = expression(100);
if (are_similar(left, right) ||
((left.id === '(string)' || left.id === '(number)') &&
(right.id === '(string)' || right.id === '(number)'))) {
warn('weird_relation', that);
} else if (left.id === 'typeof') {
if (right.id !== '(string)') {
warn("expected_string_a", right, right.id === '(number)'
? right.number
: right.string);
} else if (right.string === 'undefined' ||
right.string === 'null') {
warn("unexpected_typeof_a", left, right.string);
}
} else if (right.id === 'typeof') {
if (left.id !== '(string)') {
warn("expected_string_a", left, left.id === '(number)'
? left.number
: left.string);
} else if (left.string === 'undefined' ||
left.string === 'null') {
warn("unexpected_typeof_a", right, left.string);
}
}
that.first = left;
that.second = check_relation(right);
return that;
});
}
function assignop(s, op) {
var x = infix(s, 20, function (left, that) {
var l;
that.first = left;
if (left.identifier) {
if (scope[left.string]) {
if (scope[left.string].writeable === false) {
warn('read_only', left);
}
} else {
stop('read_only');
}
if (funct['(params)']) {
funct['(params)'].forEach(function (value) {
if (value.string === left.string) {
value.assign = true;
}
});
}
} else if (option.safe) {
l = left;
do {
if (typeof predefined[l.string] === 'boolean') {
warn('adsafe_a', l);
}
l = l.first;
} while (l);
}
if (left === syntax['function']) {
warn('identifier_function', token);
}
if (left.id === '.' || left.id === '[') {
if (!left.first || left.first.string === 'arguments') {
warn('bad_assignment', that);
}
} else if (left.identifier) {
if (!left.reserved && funct[left.string] === 'exception') {
warn('assign_exception', left);
}
} else {
warn('bad_assignment', that);
}
that.second = expression(19);
if (that.id === '=' && are_similar(that.first, that.second)) {
warn('weird_assignment', that);
}
return that;
});
x.assign = true;
if (op) {
if (syntax[op].bitwise) {
x.bitwise = true;
}
}
return x;
}
function bitwise(s, p) {
var x = infix(s, p, 'number');
x.bitwise = true;
return x;
}
function suffix(s) {
var x = symbol(s, 150);
x.led = function (left) {
no_space_only(prev_token, token);
if (!option.plusplus) {
warn('unexpected_a', this);
} else if ((!left.identifier || left.reserved) &&
left.id !== '.' && left.id !== '[') {
warn('bad_operand', this);
}
this.first = left;
this.arity = 'suffix';
return this;
};
return x;
}
function optional_identifier(variable) {
if (next_token.identifier) {
advance();
if (option.safe && banned[token.string]) {
warn('adsafe_a', token);
} else if (token.reserved && (!option.es5 || variable)) {
warn('expected_identifier_a_reserved', token);
}
return token.string;
}
}
function identifier(variable) {
var i = optional_identifier(variable);
if (!i) {
stop(token.id === 'function' && next_token.id === '('
? 'name_function'
: 'expected_identifier_a');
}
return i;
}
function statement() {
var label, old_scope = scope, the_statement;
// We don't like the empty statement.
if (next_token.id === ';') {
warn('unexpected_a');
semicolon();
return;
}
// Is this a labeled statement?
if (next_token.identifier && !next_token.reserved && peek().id === ':') {
edge('label');
label = next_token;
advance();
advance(':');
scope = Object.create(old_scope);
add_label(label, 'label');
if (next_token.labeled !== true || funct === global_funct) {
stop('unexpected_label_a', label);
} else if (jx.test(label.string + ':')) {
warn('url', label);
}
next_token.label = label;
}
// Parse the statement.
if (token.id !== 'else') {
edge();
}
step_in('statement');
the_statement = expression(0, true);
if (the_statement) {
// Look for the final semicolon.
if (the_statement.arity === 'statement') {
if (the_statement.id === 'switch' ||
(the_statement.block && the_statement.id !== 'do')) {
spaces();
} else {
semicolon();
}
} else {
// If this is an expression statement, determine if it is acceptable.
// We do not like
// new Blah;
// statments. If it is to be used at all, new should only be used to make
// objects, not side effects. The expression statements we do like do
// assignment or invocation or delete.
if (the_statement.id === '(') {
if (the_statement.first.id === 'new') {
warn('bad_new');
}
} else if (!the_statement.assign &&
the_statement.id !== 'delete' &&
the_statement.id !== '++' &&
the_statement.id !== '--') {
warn('assignment_function_expression', the_statement);
}
semicolon();
}
}
step_out();
scope = old_scope;
return the_statement;
}
function statements() {
var array = [], disruptor, the_statement;
// A disrupt statement may not be followed by any other statement.
// If the last statement is disrupt, then the sequence is disrupt.
while (next_token.postscript !== true) {
if (next_token.id === ';') {
warn('unexpected_a', next_token);
semicolon();
} else {
if (next_token.string === 'use strict') {
if ((!node_js && xmode !== 'script') || funct !== global_funct || array.length > 0) {
warn('function_strict');
}
use_strict();
}
if (disruptor) {
warn('unreachable_a_b', next_token, next_token.string,
disruptor.string);
disruptor = null;
}
the_statement = statement();
if (the_statement) {
array.push(the_statement);
if (the_statement.disrupt) {
disruptor = the_statement;
array.disrupt = true;
}
}
}
}
return array;
}
function block(ordinary) {
// array block is array sequence of statements wrapped in braces.
// ordinary is false for function bodies and try blocks.
// ordinary is true for if statements, while, etc.
var array,
curly = next_token,
old_in_block = in_block,
old_scope = scope,
old_strict_mode = strict_mode;
in_block = ordinary;
scope = Object.create(scope);
spaces();
if (next_token.id === '{') {
advance('{');
step_in();
if (!ordinary && !use_strict() && !old_strict_mode &&
!option.sloppy && funct['(context)'] === global_funct) {
warn('missing_use_strict');
}
array = statements();
strict_mode = old_strict_mode;
step_out('}', curly);
} else if (!ordinary) {
stop('expected_a_b', next_token, '{', artifact());
} else {
warn('expected_a_b', next_token, '{', artifact());
array = [statement()];
array.disrupt = array[0].disrupt;
}
funct['(verb)'] = null;
scope = old_scope;
in_block = old_in_block;
if (ordinary && array.length === 0) {
warn('empty_block');
}
return array;
}
function tally_property(name) {
if (option.properties && typeof property[name] !== 'number') {
warn('unexpected_property_a', token, name);
}
if (typeof property[name] === 'number') {
property[name] += 1;
} else {
property[name] = 1;
}
}
// ECMAScript parser
syntax['(identifier)'] = {
id: '(identifier)',
lbp: 0,
identifier: true,
nud: function () {
var name = this.string,
variable = scope[name],
site,
writeable;
// If the variable is not in scope, then we may have an undeclared variable.
// Check the predefined list. If it was predefined, create the global
// variable.
if (typeof variable !== 'object') {
writeable = predefined[name];
if (typeof writeable === 'boolean') {
global_scope[name] = variable = {
string: name,
writeable: writeable,
funct: global_funct
};
global_funct[name] = 'var';
// But if the variable is not in scope, and is not predefined, and if we are not
// in the global scope, then we have an undefined variable error.
} else {
if (!option.undef) {
warn('used_before_a', token);
}
scope[name] = variable = {
string: name,
writeable: true,
funct: funct
};
funct[name] = 'undef';
}
}
site = variable.funct;
// The name is in scope and defined in the current function.
if (funct === site) {
// Change 'unused' to 'var', and reject labels.
switch (funct[name]) {
case 'becoming':
warn('unexpected_a', token);
funct[name] = 'var';
break;
case 'unused':
funct[name] = 'var';
break;
case 'unparam':
funct[name] = 'parameter';
break;
case 'unction':
funct[name] = 'function';
break;
case 'label':
warn('a_label', token, name);
break;
}
// If the name is already defined in the current
// function, but not as outer, then there is a scope error.
} else {
switch (funct[name]) {
case 'closure':
case 'function':
case 'var':
case 'unused':
warn('a_scope', token, name);
break;
case 'label':
warn('a_label', token, name);
break;
case 'outer':
case 'global':
break;
default:
// If the name is defined in an outer function, make an outer entry, and if
// it was unused, make it var.
switch (site[name]) {
case 'becoming':
case 'closure':
case 'function':
case 'parameter':
case 'unction':
case 'unused':
case 'var':
site[name] = 'closure';
funct[name] = site === global_funct
? 'global'
: 'outer';
break;
case 'unparam':
site[name] = 'parameter';
funct[name] = 'outer';
break;
case 'undef':
funct[name] = 'undef';
break;
case 'label':
warn('a_label', token, name);
break;
}
}
}
return this;
},
led: function () {
stop('expected_operator_a');
}
};
// Build the syntax table by declaring the syntactic elements.
type('(array)', 'array');
type('(color)', 'color');
type('(function)', 'function');
type('(number)', 'number', return_this);
type('(object)', 'object');
type('(string)', 'string', return_this);
type('(boolean)', 'boolean', return_this);
type('(range)', 'range');
type('(regexp)', 'regexp', return_this);
ultimate('(begin)');
ultimate('(end)');
ultimate('(error)');
postscript(symbol('</'));
symbol('<!');
symbol('<!--');
symbol('-->');
postscript(symbol('}'));
symbol(')');
symbol(']');
postscript(symbol('"'));
postscript(symbol('\''));
symbol(';');
symbol(':');
symbol(',');
symbol('#');
symbol('@');
symbol('*/');
postscript(reserve('case'));
reserve('catch');
postscript(reserve('default'));
reserve('else');
reserve('finally');
reservevar('arguments', function (x) {
if (strict_mode && funct === global_funct) {
warn('strict', x);
} else if (option.safe) {
warn('adsafe_a', x);
}
funct['(arguments)'] = true;
});
reservevar('eval', function (x) {
if (option.safe) {
warn('adsafe_a', x);
}
});
constant('false', 'boolean');
constant('Infinity', 'number');
constant('NaN', 'number');
constant('null', '');
reservevar('this', function (x) {
if (option.safe) {
warn('adsafe_a', x);
} else if (strict_mode && funct['(token)'] &&
(funct['(token)'].arity === 'statement' &&
funct['(name)'].charAt(0) > 'Z')) {
warn('strict', x);
}
});
constant('true', 'boolean');
constant('undefined', '');
infix('?', 30, function (left, that) {
step_in('?');
that.first = expected_condition(expected_relation(left));
that.second = expression(0);
spaces();
step_out();
var colon = next_token;
advance(':');
step_in(':');
spaces();
that.third = expression(10);
that.arity = 'ternary';
if (are_similar(that.second, that.third)) {
warn('weird_ternary', colon);
} else if (are_similar(that.first, that.second)) {
warn('use_or', that);
}
step_out();
return that;
});
infix('||', 40, function (left, that) {
function paren_check(that) {
if (that.id === '&&' && !that.paren) {
warn('and', that);
}
return that;
}
that.first = paren_check(expected_condition(expected_relation(left)));
that.second = paren_check(expected_relation(expression(40)));
if (are_similar(that.first, that.second)) {
warn('weird_condition', that);
}
return that;
});
infix('&&', 50, function (left, that) {
that.first = expected_condition(expected_relation(left));
that.second = expected_relation(expression(50));
if (are_similar(that.first, that.second)) {
warn('weird_condition', that);
}
return that;
});
prefix('void', function (that) {
that.first = expression(0);
if (option.es5 || strict_mode) {
warn('expected_a_b', that, 'undefined', 'void');
} else if (that.first.number !== 0) {
warn('expected_a_b', that.first, '0', artifact(that.first));
}
return that;
});
bitwise('|', 70);
bitwise('^', 80);
bitwise('&', 90);
relation('==', '===');
relation('===');
relation('!=', '!==');
relation('!==');
relation('<');
relation('>');
relation('<=');
relation('>=');
bitwise('<<', 120);
bitwise('>>', 120);
bitwise('>>>', 120);
infix('in', 120, function (left, that) {
warn('infix_in', that);
that.left = left;
that.right = expression(130);
return that;
});
infix('instanceof', 120);
infix('+', 130, function (left, that) {
if (left.id === '(number)') {
if (left.number === 0) {
warn('unexpected_a', left, '0');
}
} else if (left.id === '(string)') {
if (left.string === '') {
warn('expected_a_b', left, 'String', '\'\'');
}
}
var right = expression(130);
if (right.id === '(number)') {
if (right.number === 0) {
warn('unexpected_a', right, '0');
}
} else if (right.id === '(string)') {
if (right.string === '') {
warn('expected_a_b', right, 'String', '\'\'');
}
}
if (left.id === right.id) {
if (left.id === '(string)' || left.id === '(number)') {
if (left.id === '(string)') {
left.string += right.string;
if (jx.test(left.string)) {
warn('url', left);
}
} else {
left.number += right.number;
}
left.thru = right.thru;
return left;
}
}
that.first = left;
that.second = right;
return that;
});
prefix('+');
prefix('+++', function () {
warn('confusing_a', token);
this.first = expression(150);
this.arity = 'prefix';
return this;
});
infix('+++', 130, function (left) {
warn('confusing_a', token);
this.first = left;
this.second = expression(130);
return this;
});
infix('-', 130, function (left, that) {
if ((left.id === '(number)' && left.number === 0) || left.id === '(string)') {
warn('unexpected_a', left);
}
var right = expression(130);
if ((right.id === '(number)' && right.number === 0) || right.id === '(string)') {
warn('unexpected_a', right);
}
if (left.id === right.id && left.id === '(number)') {
left.number -= right.number;
left.thru = right.thru;
return left;
}
that.first = left;
that.second = right;
return that;
});
prefix('-');
prefix('---', function () {
warn('confusing_a', token);
this.first = expression(150);
this.arity = 'prefix';
return this;
});
infix('---', 130, function (left) {
warn('confusing_a', token);
this.first = left;
this.second = expression(130);
return this;
});
infix('*', 140, function (left, that) {
if ((left.id === '(number)' && (left.number === 0 || left.number === 1)) || left.id === '(string)') {
warn('unexpected_a', left);
}
var right = expression(140);
if ((right.id === '(number)' && (right.number === 0 || right.number === 1)) || right.id === '(string)') {
warn('unexpected_a', right);
}
if (left.id === right.id && left.id === '(number)') {
left.number *= right.number;
left.thru = right.thru;
return left;
}
that.first = left;
that.second = right;
return that;
});
infix('/', 140, function (left, that) {
if ((left.id === '(number)' && left.number === 0) || left.id === '(string)') {
warn('unexpected_a', left);
}
var right = expression(140);
if ((right.id === '(number)' && (right.number === 0 || right.number === 1)) || right.id === '(string)') {
warn('unexpected_a', right);
}
if (left.id === right.id && left.id === '(number)') {
left.number /= right.number;
left.thru = right.thru;
return left;
}
that.first = left;
that.second = right;
return that;
});
infix('%', 140, function (left, that) {
if ((left.id === '(number)' && (left.number === 0 || left.number === 1)) || left.id === '(string)') {
warn('unexpected_a', left);
}
var right = expression(140);
if ((right.id === '(number)' && right.number === 0) || right.id === '(string)') {
warn('unexpected_a', right);
}
if (left.id === right.id && left.id === '(number)') {
left.number %= right.number;
left.thru = right.thru;
return left;
}
that.first = left;
that.second = right;
return that;
});
suffix('++');
prefix('++');
suffix('--');
prefix('--');
prefix('delete', function (that) {
one_space();
var p = expression(0);
if (!p || (p.id !== '.' && p.id !== '[')) {
warn('deleted');
}
that.first = p;
return that;
});
prefix('~', function (that) {
no_space_only();
if (!option.bitwise) {
warn('unexpected_a', that);
}
that.first = expression(150);
return that;
});
function banger(that) {
no_space_only();
that.first = expected_condition(expression(150));
if (bang[that.first.id] === that || that.first.assign) {
warn('confusing_a', that);
}
return that;
}
prefix('!', banger);
prefix('!!', banger);
prefix('typeof');
prefix('new', function (that) {
one_space();
var c = expression(160), n, p, v;
that.first = c;
if (c.id !== 'function') {
if (c.identifier) {
switch (c.string) {
case 'Object':
warn('use_object', token);
break;
case 'Array':
if (next_token.id === '(') {
p = next_token;
p.first = this;
advance('(');
if (next_token.id !== ')') {
n = expression(0);
p.second = [n];
if (n.id !== '(number)' || next_token.id === ',') {
warn('use_array', p);
}
while (next_token.id === ',') {
advance(',');
p.second.push(expression(0));
}
} else {
warn('use_array', token);
}
advance(')', p);
return p;
}
warn('use_array', token);
break;
case 'Number':
case 'String':
case 'Boolean':
case 'Math':
case 'JSON':
warn('not_a_constructor', c);
break;
case 'Function':
if (!option.evil) {
warn('function_eval');
}
break;
case 'Date':
case 'RegExp':
case 'this':
break;
default:
if (c.id !== 'function') {
v = c.string.charAt(0);
if (!option.newcap && (v < 'A' || v > 'Z')) {
warn('constructor_name_a', token);
}
}
}
} else {
if (c.id !== '.' && c.id !== '[' && c.id !== '(') {
warn('bad_constructor', token);
}
}
} else {
warn('weird_new', that);
}
if (next_token.id !== '(') {
warn('missing_a', next_token, '()');
}
return that;
});
infix('(', 160, function (left, that) {
var e, p;
if (indent && indent.mode === 'expression') {
no_space(prev_token, token);
} else {
no_space_only(prev_token, token);
}
if (!left.immed && left.id === 'function') {
warn('wrap_immediate');
}
p = [];
if (left.identifier) {
if (left.string.match(/^[A-Z]([A-Z0-9_$]*[a-z][A-Za-z0-9_$]*)?$/)) {
if (left.string !== 'Number' && left.string !== 'String' &&
left.string !== 'Boolean' && left.string !== 'Date') {
if (left.string === 'Math' || left.string === 'JSON') {
warn('not_a_function', left);
} else if (left.string === 'Object') {
warn('use_object', token);
} else if (left.string === 'Array' || !option.newcap) {
warn('missing_a', left, 'new');
}
}
}
} else if (left.id === '.') {
if (option.safe && left.first.string === 'Math' &&
left.second === 'random') {
warn('adsafe_a', left);
} else if (left.second.string === 'split' &&
left.first.id === '(string)') {
warn('use_array', left.second);
}
}
step_in();
if (next_token.id !== ')') {
no_space();
for (;;) {
edge();
e = expression(10);
if (left.string === 'Boolean' && (e.id === '!' || e.id === '~')) {
warn('weird_condition', e);
}
p.push(e);
if (next_token.id !== ',') {
break;
}
comma();
}
}
no_space();
step_out(')', that);
if (typeof left === 'object') {
if (left.string === 'parseInt' && p.length === 1) {
warn('radix', left);
} else if (left.string === 'String' && p.length >= 1 && p[0].id === '(string)') {
warn('unexpected_a', left);
}
if (!option.evil) {
if (left.string === 'eval' || left.string === 'Function' ||
left.string === 'execScript') {
warn('evil', left);
} else if (p[0] && p[0].id === '(string)' &&
(left.string === 'setTimeout' ||
left.string === 'setInterval')) {
warn('implied_evil', left);
}
}
if (!left.identifier && left.id !== '.' && left.id !== '[' &&
left.id !== '(' && left.id !== '&&' && left.id !== '||' &&
left.id !== '?') {
warn('bad_invocation', left);
}
if (left.id === '.') {
if (p.length > 0 &&
left.first && left.first.first &&
are_similar(p[0], left.first.first)) {
if (left.second.string === 'call' ||
(left.second.string === 'apply' && (p.length === 1 ||
(p[1].arity === 'prefix' && p[1].id === '[')))) {
warn('unexpected_a', left.second);
}
}
if (left.second.string === 'toString') {
if (left.first.id === '(string)' || left.first.id === '(number)') {
warn('unexpected_a', left.second);
}
}
}
}
that.first = left;
that.second = p;
return that;
}, true);
prefix('(', function (that) {
step_in('expression');
no_space();
edge();
if (next_token.id === 'function') {
next_token.immed = true;
}
var value = expression(0);
value.paren = true;
no_space();
step_out(')', that);
if (value.id === 'function') {
switch (next_token.id) {
case '(':
warn('move_invocation');
break;
case '.':
case '[':
warn('unexpected_a');
break;
default:
warn('bad_wrap', that);
}
} else if (!value.arity) {
warn('unexpected_a', that);
}
return value;
});
infix('.', 170, function (left, that) {
no_space(prev_token, token);
no_space();
var name = identifier();
if (typeof name === 'string') {
tally_property(name);
}
that.first = left;
that.second = token;
if (left && left.string === 'arguments' &&
(name === 'callee' || name === 'caller')) {
warn('avoid_a', left, 'arguments.' + name);
} else if (!option.evil && left && left.string === 'document' &&
(name === 'write' || name === 'writeln')) {
warn('write_is_wrong', left);
} else if (!option.stupid && syx.test(name)) {
warn('sync_a', token);
} else if (option.adsafe) {
if (!adsafe_top && left.string === 'ADSAFE') {
if (name === 'id' || name === 'lib') {
warn('adsafe_a', that);
} else if (name === 'go') {
if (xmode !== 'script') {
warn('adsafe_a', that);
} else if (adsafe_went || next_token.id !== '(' ||
peek(0).id !== '(string)' ||
peek(0).string !== adsafe_id ||
peek(1).id !== ',') {
stop('adsafe_a', that, 'go');
}
adsafe_went = true;
adsafe_may = false;
}
}
adsafe_top = false;
}
if (!option.evil && (name === 'eval' || name === 'execScript')) {
warn('evil');
} else if (option.safe) {
for (;;) {
if (banned[name] === true) {
warn('adsafe_a', token, name);
}
if (typeof predefined[left.string] !== 'boolean' || //// check for writeable
next_token.id === '(') {
break;
}
if (next_token.id !== '.') {
warn('adsafe_a', that);
break;
}
advance('.');
token.first = that;
token.second = name;
that = token;
name = identifier();
if (typeof name === 'string') {
tally_property(name);
}
}
}
return that;
}, true);
infix('[', 170, function (left, that) {
var e, s;
no_space_only(prev_token, token);
no_space();
step_in();
edge();
e = expression(0);
switch (e.id) {
case '(number)':
if (e.id === '(number)' && left.id === 'arguments') {
warn('use_param', left);
}
break;
case '(string)':
if (option.safe && (banned[e.string] ||
e.string.charAt(0) === '_' || e.string.slice(-1) === '_')) {
warn('adsafe_subscript_a', e);
} else if (!option.evil &&
(e.string === 'eval' || e.string === 'execScript')) {
warn('evil', e);
} else if (!option.sub && ix.test(e.string)) {
s = syntax[e.string];
if (!s || !s.reserved) {
warn('subscript', e);
}
}
tally_property(e.string);
break;
default:
if (option.safe) {
if ((e.id !== '+' || e.arity !== 'prefix') &&
e.id !== '-' && e.id !== '*') {
warn('adsafe_subscript_a', e);
}
}
}
step_out(']', that);
no_space(prev_token, token);
that.first = left;
that.second = e;
return that;
}, true);
prefix('[', function (that) {
that.first = [];
step_in('array');
while (next_token.id !== '(end)') {
while (next_token.id === ',') {
warn('unexpected_a', next_token);
advance(',');
}
if (next_token.id === ']') {
break;
}
indent.wrap = false;
edge();
that.first.push(expression(10));
if (next_token.id === ',') {
comma();
if (next_token.id === ']' && !option.es5) {
warn('unexpected_a', token);
break;
}
} else {
break;
}
}
step_out(']', that);
return that;
}, 170);
function property_name() {
var id = optional_identifier();
if (!id) {
if (next_token.id === '(string)') {
id = next_token.string;
if (option.safe) {
if (banned[id]) {
warn('adsafe_a');
} else if (id.charAt(0) === '_' ||
id.charAt(id.length - 1) === '_') {
warn('dangling_a');
}
}
advance();
} else if (next_token.id === '(number)') {
id = next_token.number.toString();
advance();
}
}
return id;
}
function function_params() {
var id, paren = next_token, params = [];
advance('(');
step_in();
no_space();
if (next_token.id === ')') {
no_space();
step_out(')', paren);
return params;
}
for (;;) {
edge();
id = identifier();
params.push(token);
add_label(token, option.unparam ? 'parameter' : 'unparam');
if (next_token.id === ',') {
comma();
} else {
no_space();
step_out(')', paren);
return params;
}
}
}
function do_function(func, name) {
var old_funct = funct,
old_option = option,
old_scope = scope;
funct = {
'(name)' : name || '\'' + (anonname || '').replace(nx, sanitize) + '\'',
'(line)' : next_token.line,
'(context)' : old_funct,
'(breakage)' : 0,
'(loopage)' : 0,
'(scope)' : scope,
'(token)' : func
};
option = Object.create(old_option);
scope = Object.create(old_scope);
functions.push(funct);
func.name = name;
if (name) {
add_label(func, 'function', name);
}
func.writeable = false;
func.first = funct['(params)'] = function_params();
one_space();
func.block = block(false);
if (funct['(arguments)']) {
func.first.forEach(function (value) {
if (value.assign) {
warn('parameter_arguments_a', value, value.string);
}
});
}
funct = old_funct;
option = old_option;
scope = old_scope;
}
assignop('=');
assignop('+=', '+');
assignop('-=', '-');
assignop('*=', '*');
assignop('/=', '/').nud = function () {
stop('slash_equal');
};
assignop('%=', '%');
assignop('&=', '&');
assignop('|=', '|');
assignop('^=', '^');
assignop('<<=', '<<');
assignop('>>=', '>>');
assignop('>>>=', '>>>');
prefix('{', function (that) {
var get, i, j, name, p, set, seen = {};
that.first = [];
step_in();
while (next_token.id !== '}') {
indent.wrap = false;
// JSLint recognizes the ES5 extension for get/set in object literals,
// but requires that they be used in pairs.
edge();
if (next_token.string === 'get' && peek().id !== ':') {
if (!option.es5) {
warn('es5');
}
get = next_token;
advance('get');
one_space_only();
name = next_token;
i = property_name();
if (!i) {
stop('missing_property');
}
get.string = '';
do_function(get);
if (funct['(loopage)']) {
warn('function_loop', get);
}
p = get.first;
if (p && p.length) {
warn('parameter_a_get_b', p[0], p[0].string, i);
}
comma();
set = next_token;
spaces();
edge();
advance('set');
set.string = '';
one_space_only();
j = property_name();
if (i !== j) {
stop('expected_a_b', token, i, j || next_token.string);
}
do_function(set);
if (set.block.length === 0) {
warn('missing_a', token, 'throw');
}
p = set.first;
if (!p || p.length !== 1) {
stop('parameter_set_a', set, 'value');
} else if (p[0].string !== 'value') {
stop('expected_a_b', p[0], 'value', p[0].string);
}
name.first = [get, set];
} else {
name = next_token;
i = property_name();
if (typeof i !== 'string') {
stop('missing_property');
}
advance(':');
spaces();
name.first = expression(10);
}
that.first.push(name);
if (seen[i] === true) {
warn('duplicate_a', next_token, i);
}
seen[i] = true;
tally_property(i);
if (next_token.id !== ',') {
break;
}
for (;;) {
comma();
if (next_token.id !== ',') {
break;
}
warn('unexpected_a', next_token);
}
if (next_token.id === '}' && !option.es5) {
warn('unexpected_a', token);
}
}
step_out('}', that);
return that;
});
stmt('{', function () {
warn('statement_block');
this.arity = 'statement';
this.block = statements();
this.disrupt = this.block.disrupt;
advance('}', this);
return this;
});
stmt('/*global', directive);
stmt('/*globals', directive);
stmt('/*jslint', directive);
stmt('/*member', directive);
stmt('/*members', directive);
stmt('/*property', directive);
stmt('/*properties', directive);
stmt('var', function () {
// JavaScript does not have block scope. It only has function scope. So,
// declaring a variable in a block can have unexpected consequences.
// var.first will contain an array, the array containing name tokens
// and assignment tokens.
var assign, id, name;
if (funct['(vars)'] && !option.vars) {
warn('combine_var');
} else if (funct !== global_funct) {
funct['(vars)'] = true;
}
this.arity = 'statement';
this.first = [];
step_in('var');
for (;;) {
name = next_token;
id = identifier(true);
add_label(name, 'becoming');
if (next_token.id === '=') {
assign = next_token;
assign.first = name;
spaces();
advance('=');
spaces();
if (next_token.id === 'undefined') {
warn('unnecessary_initialize', token, id);
}
if (peek(0).id === '=' && next_token.identifier) {
stop('var_a_not');
}
assign.second = expression(0);
assign.arity = 'infix';
this.first.push(assign);
} else {
this.first.push(name);
}
if (funct[id] === 'becoming') {
funct[id] = 'unused';
}
if (next_token.id !== ',') {
break;
}
comma();
indent.wrap = false;
if (var_mode && next_token.line === token.line &&
this.first.length === 1) {
var_mode = null;
indent.open = false;
indent.at -= option.indent;
}
spaces();
edge();
}
var_mode = null;
step_out();
return this;
});
stmt('function', function () {
one_space();
if (in_block) {
warn('function_block', token);
}
var name = next_token, id = identifier(true);
add_label(name, 'unction');
no_space();
this.arity = 'statement';
do_function(this, id);
if (next_token.id === '(' && next_token.line === token.line) {
stop('function_statement');
}
return this;
});
prefix('function', function (that) {
if (!option.anon) {
one_space();
}
var id = optional_identifier(true);
if (id) {
no_space();
} else {
id = '';
}
do_function(that, id);
if (funct['(loopage)']) {
warn('function_loop');
}
switch (next_token.id) {
case ';':
case '(':
case ')':
case ',':
case ']':
case '}':
case ':':
break;
case '.':
if (peek().string !== 'bind' || peek(1).id !== '(') {
warn('unexpected_a');
}
break;
default:
stop('unexpected_a');
}
that.arity = 'function';
return that;
});
stmt('if', function () {
var paren = next_token;
one_space();
advance('(');
step_in('control');
no_space();
edge();
this.arity = 'statement';
this.first = expected_condition(expected_relation(expression(0)));
no_space();
step_out(')', paren);
one_space();
this.block = block(true);
if (next_token.id === 'else') {
one_space();
advance('else');
one_space();
this['else'] = next_token.id === 'if' || next_token.id === 'switch'
? statement(true)
: block(true);
if (this['else'].disrupt && this.block.disrupt) {
this.disrupt = true;
}
}
return this;
});
stmt('try', function () {
// try.first The catch variable
// try.second The catch clause
// try.third The finally clause
// try.block The try block
var exception_variable, old_scope, paren;
if (option.adsafe) {
warn('adsafe_a', this);
}
one_space();
this.arity = 'statement';
this.block = block(false);
if (next_token.id === 'catch') {
one_space();
advance('catch');
one_space();
paren = next_token;
advance('(');
step_in('control');
no_space();
edge();
old_scope = scope;
scope = Object.create(old_scope);
exception_variable = next_token.string;
this.first = exception_variable;
if (!next_token.identifier) {
warn('expected_identifier_a', next_token);
} else {
add_label(next_token, 'exception');
}
advance();
no_space();
step_out(')', paren);
one_space();
this.second = block(false);
scope = old_scope;
}
if (next_token.id === 'finally') {
one_space();
advance('finally');
one_space();
this.third = block(false);
} else if (!this.second) {
stop('expected_a_b', next_token, 'catch', artifact());
}
return this;
});
labeled_stmt('while', function () {
one_space();
var paren = next_token;
funct['(breakage)'] += 1;
funct['(loopage)'] += 1;
advance('(');
step_in('control');
no_space();
edge();
this.arity = 'statement';
this.first = expected_relation(expression(0));
if (this.first.id !== 'true') {
expected_condition(this.first, bundle.unexpected_a);
}
no_space();
step_out(')', paren);
one_space();
this.block = block(true);
if (this.block.disrupt) {
warn('strange_loop', prev_token);
}
funct['(breakage)'] -= 1;
funct['(loopage)'] -= 1;
return this;
});
reserve('with');
labeled_stmt('switch', function () {
// switch.first the switch expression
// switch.second the array of cases. A case is 'case' or 'default' token:
// case.first the array of case expressions
// case.second the array of statements
// If all of the arrays of statements are disrupt, then the switch is disrupt.
var cases = [],
old_in_block = in_block,
particular,
that = token,
the_case = next_token,
unbroken = true;
function find_duplicate_case(value) {
if (are_similar(particular, value)) {
warn('duplicate_a', value);
}
}
funct['(breakage)'] += 1;
one_space();
advance('(');
no_space();
step_in();
this.arity = 'statement';
this.first = expected_condition(expected_relation(expression(0)));
no_space();
step_out(')', the_case);
one_space();
advance('{');
step_in();
in_block = true;
this.second = [];
if (that.from !== next_token.from) {
warn('expected_a_at_b_c', next_token, next_token.string, that.from, next_token.from);
}
while (next_token.id === 'case') {
the_case = next_token;
cases.forEach(find_duplicate_case);
the_case.first = [];
the_case.arity = 'case';
spaces();
edge('case');
advance('case');
for (;;) {
one_space();
particular = expression(0);
cases.forEach(find_duplicate_case);
cases.push(particular);
the_case.first.push(particular);
if (particular.id === 'NaN') {
warn('unexpected_a', particular);
}
no_space_only();
advance(':');
if (next_token.id !== 'case') {
break;
}
spaces();
edge('case');
advance('case');
}
spaces();
the_case.second = statements();
if (the_case.second && the_case.second.length > 0) {
particular = the_case.second[the_case.second.length - 1];
if (particular.disrupt) {
if (particular.id === 'break') {
unbroken = false;
}
} else {
warn('missing_a_after_b', next_token, 'break', 'case');
}
} else {
warn('empty_case');
}
this.second.push(the_case);
}
if (this.second.length === 0) {
warn('missing_a', next_token, 'case');
}
if (next_token.id === 'default') {
spaces();
the_case = next_token;
the_case.arity = 'case';
edge('case');
advance('default');
no_space_only();
advance(':');
spaces();
the_case.second = statements();
if (the_case.second && the_case.second.length > 0) {
particular = the_case.second[the_case.second.length - 1];
if (unbroken && particular.disrupt && particular.id !== 'break') {
this.disrupt = true;
}
}
this.second.push(the_case);
}
funct['(breakage)'] -= 1;
spaces();
step_out('}', this);
in_block = old_in_block;
return this;
});
stmt('debugger', function () {
if (!option.debug) {
warn('unexpected_a', this);
}
this.arity = 'statement';
return this;
});
labeled_stmt('do', function () {
funct['(breakage)'] += 1;
funct['(loopage)'] += 1;
one_space();
this.arity = 'statement';
this.block = block(true);
if (this.block.disrupt) {
warn('strange_loop', prev_token);
}
one_space();
advance('while');
var paren = next_token;
one_space();
advance('(');
step_in();
no_space();
edge();
this.first = expected_condition(expected_relation(expression(0)), bundle.unexpected_a);
no_space();
step_out(')', paren);
funct['(breakage)'] -= 1;
funct['(loopage)'] -= 1;
return this;
});
labeled_stmt('for', function () {
var blok, filter, ok = false, paren = next_token, value;
this.arity = 'statement';
funct['(breakage)'] += 1;
funct['(loopage)'] += 1;
advance('(');
if (next_token.id === ';') {
no_space();
advance(';');
no_space();
advance(';');
no_space();
advance(')');
blok = block(true);
} else {
step_in('control');
spaces(this, paren);
no_space();
if (next_token.id === 'var') {
stop('move_var');
}
edge();
if (peek(0).id === 'in') {
this.forin = true;
value = next_token;
switch (funct[value.string]) {
case 'unused':
funct[value.string] = 'var';
break;
case 'closure':
case 'var':
break;
default:
warn('bad_in_a', value);
}
advance();
advance('in');
this.first = value;
this.second = expression(20);
step_out(')', paren);
blok = block(true);
if (!option.forin) {
if (blok.length === 1 && typeof blok[0] === 'object' &&
blok[0].string === 'if' && !blok[0]['else']) {
filter = blok[0].first;
while (filter.id === '&&') {
filter = filter.first;
}
switch (filter.id) {
case '===':
case '!==':
ok = filter.first.id === '['
? filter.first.first.string === this.second.string &&
filter.first.second.string === this.first.string
: filter.first.id === 'typeof' &&
filter.first.first.id === '[' &&
filter.first.first.first.string === this.second.string &&
filter.first.first.second.string === this.first.string;
break;
case '(':
ok = filter.first.id === '.' && ((
filter.first.first.string === this.second.string &&
filter.first.second.string === 'hasOwnProperty' &&
filter.second[0].string === this.first.string
) || (
filter.first.first.string === 'ADSAFE' &&
filter.first.second.string === 'has' &&
filter.second[0].string === this.second.string &&
filter.second[1].string === this.first.string
) || (
filter.first.first.id === '.' &&
filter.first.first.first.id === '.' &&
filter.first.first.first.first.string === 'Object' &&
filter.first.first.first.second.string === 'prototype' &&
filter.first.first.second.string === 'hasOwnProperty' &&
filter.first.second.string === 'call' &&
filter.second[0].string === this.second.string &&
filter.second[1].string === this.first.string
));
break;
}
}
if (!ok) {
warn('for_if', this);
}
}
} else {
edge();
this.first = [];
for (;;) {
this.first.push(expression(0, 'for'));
if (next_token.id !== ',') {
break;
}
comma();
}
semicolon();
edge();
this.second = expected_relation(expression(0));
if (this.second.id !== 'true') {
expected_condition(this.second, bundle.unexpected_a);
}
semicolon(token);
if (next_token.id === ';') {
stop('expected_a_b', next_token, ')', ';');
}
this.third = [];
edge();
for (;;) {
this.third.push(expression(0, 'for'));
if (next_token.id !== ',') {
break;
}
comma();
}
no_space();
step_out(')', paren);
one_space();
blok = block(true);
}
}
if (blok.disrupt) {
warn('strange_loop', prev_token);
}
this.block = blok;
funct['(breakage)'] -= 1;
funct['(loopage)'] -= 1;
return this;
});
disrupt_stmt('break', function () {
var label = next_token.string;
this.arity = 'statement';
if (funct['(breakage)'] === 0) {
warn('unexpected_a', this);
}
if (next_token.identifier && token.line === next_token.line) {
one_space_only();
if (funct[label] !== 'label') {
warn('not_a_label', next_token);
} else if (scope[label].funct !== funct) {
warn('not_a_scope', next_token);
}
this.first = next_token;
advance();
}
return this;
});
disrupt_stmt('continue', function () {
if (!option['continue']) {
warn('unexpected_a', this);
}
var label = next_token.string;
this.arity = 'statement';
if (funct['(breakage)'] === 0) {
warn('unexpected_a', this);
}
if (next_token.identifier && token.line === next_token.line) {
one_space_only();
if (funct[label] !== 'label') {
warn('not_a_label', next_token);
} else if (scope[label].funct !== funct) {
warn('not_a_scope', next_token);
}
this.first = next_token;
advance();
}
return this;
});
disrupt_stmt('return', function () {
if (funct === global_funct && xmode !== 'scriptstring') {
warn('unexpected_a', this);
}
this.arity = 'statement';
if (next_token.id !== ';' && next_token.line === token.line) {
one_space_only();
if (next_token.id === '/' || next_token.id === '(regexp)') {
warn('wrap_regexp');
}
this.first = expression(0);
if (this.first.assign) {
warn('unexpected_a', this.first);
}
}
if (peek(0).id === '}' && peek(1).id === 'else') {
warn('unexpected_else', this);
}
return this;
});
disrupt_stmt('throw', function () {
this.arity = 'statement';
one_space_only();
this.first = expression(20);
return this;
});
// Superfluous reserved words
reserve('class');
reserve('const');
reserve('enum');
reserve('export');
reserve('extends');
reserve('import');
reserve('super');
// Harmony reserved words
reserve('implements');
reserve('interface');
reserve('let');
reserve('package');
reserve('private');
reserve('protected');
reserve('public');
reserve('static');
reserve('yield');
// Parse JSON
function json_value() {
function json_object() {
var brace = next_token, object = {};
advance('{');
if (next_token.id !== '}') {
while (next_token.id !== '(end)') {
while (next_token.id === ',') {
warn('unexpected_a', next_token);
advance(',');
}
if (next_token.id !== '(string)') {
warn('expected_string_a');
}
if (object[next_token.string] === true) {
warn('duplicate_a');
} else if (next_token.string === '__proto__') {
warn('dangling_a');
} else {
object[next_token.string] = true;
}
advance();
advance(':');
json_value();
if (next_token.id !== ',') {
break;
}
advance(',');
if (next_token.id === '}') {
warn('unexpected_a', token);
break;
}
}
}
advance('}', brace);
}
function json_array() {
var bracket = next_token;
advance('[');
if (next_token.id !== ']') {
while (next_token.id !== '(end)') {
while (next_token.id === ',') {
warn('unexpected_a', next_token);
advance(',');
}
json_value();
if (next_token.id !== ',') {
break;
}
advance(',');
if (next_token.id === ']') {
warn('unexpected_a', token);
break;
}
}
}
advance(']', bracket);
}
switch (next_token.id) {
case '{':
json_object();
break;
case '[':
json_array();
break;
case 'true':
case 'false':
case 'null':
case '(number)':
case '(string)':
advance();
break;
case '-':
advance('-');
no_space_only();
advance('(number)');
break;
default:
stop('unexpected_a');
}
}
// CSS parsing.
function css_name() {
if (next_token.identifier) {
advance();
return true;
}
}
function css_number() {
if (next_token.id === '-') {
advance('-');
no_space_only();
}
if (next_token.id === '(number)') {
advance('(number)');
return true;
}
}
function css_string() {
if (next_token.id === '(string)') {
advance();
return true;
}
}
function css_color() {
var i, number, paren, value;
if (next_token.identifier) {
value = next_token.string;
if (value === 'rgb' || value === 'rgba') {
advance();
paren = next_token;
advance('(');
for (i = 0; i < 3; i += 1) {
if (i) {
comma();
}
number = next_token.number;
if (next_token.id !== '(number)' || number < 0) {
warn('expected_positive_a', next_token);
advance();
} else {
advance();
if (next_token.id === '%') {
advance('%');
if (number > 100) {
warn('expected_percent_a', token, number);
}
} else {
if (number > 255) {
warn('expected_small_a', token, number);
}
}
}
}
if (value === 'rgba') {
comma();
number = next_token.number;
if (next_token.id !== '(number)' || number < 0 || number > 1) {
warn('expected_fraction_a', next_token);
}
advance();
if (next_token.id === '%') {
warn('unexpected_a');
advance('%');
}
}
advance(')', paren);
return true;
}
if (css_colorData[next_token.string] === true) {
advance();
return true;
}
} else if (next_token.id === '(color)') {
advance();
return true;
}
return false;
}
function css_length() {
if (next_token.id === '-') {
advance('-');
no_space_only();
}
if (next_token.id === '(number)') {
advance();
if (next_token.id !== '(string)' &&
css_lengthData[next_token.string] === true) {
no_space_only();
advance();
} else if (+token.number !== 0) {
warn('expected_linear_a');
}
return true;
}
return false;
}
function css_line_height() {
if (next_token.id === '-') {
advance('-');
no_space_only();
}
if (next_token.id === '(number)') {
advance();
if (next_token.id !== '(string)' &&
css_lengthData[next_token.string] === true) {
no_space_only();
advance();
}
return true;
}
return false;
}
function css_width() {
if (next_token.identifier) {
switch (next_token.string) {
case 'thin':
case 'medium':
case 'thick':
advance();
return true;
}
} else {
return css_length();
}
}
function css_margin() {
if (next_token.identifier) {
if (next_token.string === 'auto') {
advance();
return true;
}
} else {
return css_length();
}
}
function css_attr() {
if (next_token.identifier && next_token.string === 'attr') {
advance();
advance('(');
if (!next_token.identifier) {
warn('expected_name_a');
}
advance();
advance(')');
return true;
}
return false;
}
function css_comma_list() {
while (next_token.id !== ';') {
if (!css_name() && !css_string()) {
warn('expected_name_a');
}
if (next_token.id !== ',') {
return true;
}
comma();
}
}
function css_counter() {
if (next_token.identifier && next_token.string === 'counter') {
advance();
advance('(');
advance();
if (next_token.id === ',') {
comma();
if (next_token.id !== '(string)') {
warn('expected_string_a');
}
advance();
}
advance(')');
return true;
}
if (next_token.identifier && next_token.string === 'counters') {
advance();
advance('(');
if (!next_token.identifier) {
warn('expected_name_a');
}
advance();
if (next_token.id === ',') {
comma();
if (next_token.id !== '(string)') {
warn('expected_string_a');
}
advance();
}
if (next_token.id === ',') {
comma();
if (next_token.id !== '(string)') {
warn('expected_string_a');
}
advance();
}
advance(')');
return true;
}
return false;
}
function css_radius() {
return css_length() && (next_token.id !== '(number)' || css_length());
}
function css_shadow() {
for (;;) {
if (next_token.string === 'inset') {
advance();
}
for (;;) {
if (!css_length()) {
break;
}
}
css_color();
if (next_token.id !== ',') {
break;
}
advance(',');
}
return true;
}
function css_shape() {
var i;
if (next_token.identifier && next_token.string === 'rect') {
advance();
advance('(');
for (i = 0; i < 4; i += 1) {
if (!css_length()) {
warn('expected_number_a');
break;
}
}
advance(')');
return true;
}
return false;
}
function css_url() {
var c, url;
if (next_token.identifier && next_token.string === 'url') {
next_token = lex.range('(', ')');
url = next_token.string;
c = url.charAt(0);
if (c === '"' || c === '\'') {
if (url.slice(-1) !== c) {
warn('bad_url_a');
} else {
url = url.slice(1, -1);
if (url.indexOf(c) >= 0) {
warn('bad_url_a');
}
}
}
if (!url) {
warn('missing_url');
}
if (ux.test(url)) {
stop('bad_url_a');
}
urls.push(url);
advance();
return true;
}
return false;
}
css_any = [css_url, function () {
for (;;) {
if (next_token.identifier) {
switch (next_token.string.toLowerCase()) {
case 'url':
css_url();
break;
case 'expression':
warn('unexpected_a');
advance();
break;
default:
advance();
}
} else {
if (next_token.id === ';' || next_token.id === '!' ||
next_token.id === '(end)' || next_token.id === '}') {
return true;
}
advance();
}
}
}];
function font_face() {
advance_identifier('font-family');
advance(':');
if (!css_name() && !css_string()) {
stop('expected_name_a');
}
semicolon();
advance_identifier('src');
advance(':');
while (true) {
if (next_token.string === 'local') {
advance_identifier('local');
advance('(');
if (ux.test(next_token.string)) {
stop('bad_url_a');
}
if (!css_name() && !css_string()) {
stop('expected_name_a');
}
advance(')');
} else if (!css_url()) {
stop('expected_a_b', next_token, 'url', artifact());
}
if (next_token.id !== ',') {
break;
}
comma();
}
semicolon();
}
css_border_style = [
'none', 'dashed', 'dotted', 'double', 'groove',
'hidden', 'inset', 'outset', 'ridge', 'solid'
];
css_break = [
'auto', 'always', 'avoid', 'left', 'right'
];
css_media = {
'all': true,
'braille': true,
'embossed': true,
'handheld': true,
'print': true,
'projection': true,
'screen': true,
'speech': true,
'tty': true,
'tv': true
};
css_overflow = [
'auto', 'hidden', 'scroll', 'visible'
];
css_attribute_data = {
background: [
true, 'background-attachment', 'background-color',
'background-image', 'background-position', 'background-repeat'
],
'background-attachment': ['scroll', 'fixed'],
'background-color': ['transparent', css_color],
'background-image': ['none', css_url],
'background-position': [
2, [css_length, 'top', 'bottom', 'left', 'right', 'center']
],
'background-repeat': [
'repeat', 'repeat-x', 'repeat-y', 'no-repeat'
],
'border': [true, 'border-color', 'border-style', 'border-width'],
'border-bottom': [
true, 'border-bottom-color', 'border-bottom-style',
'border-bottom-width'
],
'border-bottom-color': css_color,
'border-bottom-left-radius': css_radius,
'border-bottom-right-radius': css_radius,
'border-bottom-style': css_border_style,
'border-bottom-width': css_width,
'border-collapse': ['collapse', 'separate'],
'border-color': ['transparent', 4, css_color],
'border-left': [
true, 'border-left-color', 'border-left-style', 'border-left-width'
],
'border-left-color': css_color,
'border-left-style': css_border_style,
'border-left-width': css_width,
'border-radius': function () {
function count(separator) {
var n = 1;
if (separator) {
advance(separator);
}
if (!css_length()) {
return false;
}
while (next_token.id === '(number)') {
if (!css_length()) {
return false;
}
n += 1;
}
if (n > 4) {
warn('bad_style');
}
return true;
}
return count() && (next_token.id !== '/' || count('/'));
},
'border-right': [
true, 'border-right-color', 'border-right-style',
'border-right-width'
],
'border-right-color': css_color,
'border-right-style': css_border_style,
'border-right-width': css_width,
'border-spacing': [2, css_length],
'border-style': [4, css_border_style],
'border-top': [
true, 'border-top-color', 'border-top-style', 'border-top-width'
],
'border-top-color': css_color,
'border-top-left-radius': css_radius,
'border-top-right-radius': css_radius,
'border-top-style': css_border_style,
'border-top-width': css_width,
'border-width': [4, css_width],
bottom: [css_length, 'auto'],
'box-shadow': ['none', css_shadow],
'caption-side' : ['bottom', 'left', 'right', 'top'],
clear: ['both', 'left', 'none', 'right'],
clip: [css_shape, 'auto'],
color: css_color,
content: [
'open-quote', 'close-quote', 'no-open-quote', 'no-close-quote',
css_string, css_url, css_counter, css_attr
],
'counter-increment': [
css_name, 'none'
],
'counter-reset': [
css_name, 'none'
],
cursor: [
css_url, 'auto', 'crosshair', 'default', 'e-resize', 'help', 'move',
'n-resize', 'ne-resize', 'nw-resize', 'pointer', 's-resize',
'se-resize', 'sw-resize', 'w-resize', 'text', 'wait'
],
direction: ['ltr', 'rtl'],
display: [
'block', 'compact', 'inline', 'inline-block', 'inline-table',
'list-item', 'marker', 'none', 'run-in', 'table', 'table-caption',
'table-cell', 'table-column', 'table-column-group',
'table-footer-group', 'table-header-group', 'table-row',
'table-row-group'
],
'empty-cells': ['show', 'hide'],
'float': ['left', 'none', 'right'],
font: [
'caption', 'icon', 'menu', 'message-box', 'small-caption',
'status-bar', true, 'font-size', 'font-style', 'font-weight',
'font-family'
],
'font-family': css_comma_list,
'font-size': [
'xx-small', 'x-small', 'small', 'medium', 'large', 'x-large',
'xx-large', 'larger', 'smaller', css_length
],
'font-size-adjust': ['none', css_number],
'font-stretch': [
'normal', 'wider', 'narrower', 'ultra-condensed',
'extra-condensed', 'condensed', 'semi-condensed',
'semi-expanded', 'expanded', 'extra-expanded'
],
'font-style': [
'normal', 'italic', 'oblique'
],
'font-variant': [
'normal', 'small-caps'
],
'font-weight': [
'normal', 'bold', 'bolder', 'lighter', css_number
],
height: [css_length, 'auto'],
left: [css_length, 'auto'],
'letter-spacing': ['normal', css_length],
'line-height': ['normal', css_line_height],
'list-style': [
true, 'list-style-image', 'list-style-position', 'list-style-type'
],
'list-style-image': ['none', css_url],
'list-style-position': ['inside', 'outside'],
'list-style-type': [
'circle', 'disc', 'square', 'decimal', 'decimal-leading-zero',
'lower-roman', 'upper-roman', 'lower-greek', 'lower-alpha',
'lower-latin', 'upper-alpha', 'upper-latin', 'hebrew', 'katakana',
'hiragana-iroha', 'katakana-oroha', 'none'
],
margin: [4, css_margin],
'margin-bottom': css_margin,
'margin-left': css_margin,
'margin-right': css_margin,
'margin-top': css_margin,
'marker-offset': [css_length, 'auto'],
'max-height': [css_length, 'none'],
'max-width': [css_length, 'none'],
'min-height': css_length,
'min-width': css_length,
opacity: css_number,
outline: [true, 'outline-color', 'outline-style', 'outline-width'],
'outline-color': ['invert', css_color],
'outline-style': [
'dashed', 'dotted', 'double', 'groove', 'inset', 'none',
'outset', 'ridge', 'solid'
],
'outline-width': css_width,
overflow: css_overflow,
'overflow-x': css_overflow,
'overflow-y': css_overflow,
padding: [4, css_length],
'padding-bottom': css_length,
'padding-left': css_length,
'padding-right': css_length,
'padding-top': css_length,
'page-break-after': css_break,
'page-break-before': css_break,
position: ['absolute', 'fixed', 'relative', 'static'],
quotes: [8, css_string],
right: [css_length, 'auto'],
'table-layout': ['auto', 'fixed'],
'text-align': ['center', 'justify', 'left', 'right'],
'text-decoration': [
'none', 'underline', 'overline', 'line-through', 'blink'
],
'text-indent': css_length,
'text-shadow': ['none', 4, [css_color, css_length]],
'text-transform': ['capitalize', 'uppercase', 'lowercase', 'none'],
top: [css_length, 'auto'],
'unicode-bidi': ['normal', 'embed', 'bidi-override'],
'vertical-align': [
'baseline', 'bottom', 'sub', 'super', 'top', 'text-top', 'middle',
'text-bottom', css_length
],
visibility: ['visible', 'hidden', 'collapse'],
'white-space': [
'normal', 'nowrap', 'pre', 'pre-line', 'pre-wrap', 'inherit'
],
width: [css_length, 'auto'],
'word-spacing': ['normal', css_length],
'word-wrap': ['break-word', 'normal'],
'z-index': ['auto', css_number]
};
function style_attribute() {
var v;
while (next_token.id === '*' || next_token.id === '#' ||
next_token.string === '_') {
if (!option.css) {
warn('unexpected_a');
}
advance();
}
if (next_token.id === '-') {
if (!option.css) {
warn('unexpected_a');
}
advance('-');
if (!next_token.identifier) {
warn('expected_nonstandard_style_attribute');
}
advance();
return css_any;
}
if (!next_token.identifier) {
warn('expected_style_attribute');
} else {
if (Object.prototype.hasOwnProperty.call(css_attribute_data,
next_token.string)) {
v = css_attribute_data[next_token.string];
} else {
v = css_any;
if (!option.css) {
warn('unrecognized_style_attribute_a');
}
}
}
advance();
return v;
}
function style_value(v) {
var i = 0,
n,
once,
match,
round,
start = 0,
vi;
switch (typeof v) {
case 'function':
return v();
case 'string':
if (next_token.identifier && next_token.string === v) {
advance();
return true;
}
return false;
}
for (;;) {
if (i >= v.length) {
return false;
}
vi = v[i];
i += 1;
if (typeof vi === 'boolean') {
break;
} else if (typeof vi === 'number') {
n = vi;
vi = v[i];
i += 1;
} else {
n = 1;
}
match = false;
while (n > 0) {
if (style_value(vi)) {
match = true;
n -= 1;
} else {
break;
}
}
if (match) {
return true;
}
}
start = i;
once = [];
for (;;) {
round = false;
for (i = start; i < v.length; i += 1) {
if (!once[i]) {
if (style_value(css_attribute_data[v[i]])) {
match = true;
round = true;
once[i] = true;
break;
}
}
}
if (!round) {
return match;
}
}
}
function style_child() {
if (next_token.id === '(number)') {
advance();
if (next_token.string === 'n' && next_token.identifier) {
no_space_only();
advance();
if (next_token.id === '+') {
no_space_only();
advance('+');
no_space_only();
advance('(number)');
}
}
return;
}
if (next_token.identifier &&
(next_token.string === 'odd' || next_token.string === 'even')) {
advance();
return;
}
warn('unexpected_a');
}
function substyle() {
var v;
for (;;) {
if (next_token.id === '}' || next_token.id === '(end)' ||
(xquote && next_token.id === xquote)) {
return;
}
v = style_attribute();
advance(':');
if (next_token.identifier && next_token.string === 'inherit') {
advance();
} else {
if (!style_value(v)) {
warn('unexpected_a');
advance();
}
}
if (next_token.id === '!') {
advance('!');
no_space_only();
if (next_token.identifier && next_token.string === 'important') {
advance();
} else {
warn('expected_a_b',
next_token, 'important', artifact());
}
}
if (next_token.id === '}' || next_token.id === xquote) {
warn('expected_a_b', next_token, ';', artifact());
} else {
semicolon();
}
}
}
function style_selector() {
if (next_token.identifier) {
if (!Object.prototype.hasOwnProperty.call(html_tag,
next_token.string)) {
warn('expected_tagname_a');
}
advance();
} else {
switch (next_token.id) {
case '>':
case '+':
advance();
style_selector();
break;
case ':':
advance(':');
switch (next_token.string) {
case 'active':
case 'after':
case 'before':
case 'checked':
case 'disabled':
case 'empty':
case 'enabled':
case 'first-child':
case 'first-letter':
case 'first-line':
case 'first-of-type':
case 'focus':
case 'hover':
case 'last-child':
case 'last-of-type':
case 'link':
case 'only-of-type':
case 'root':
case 'target':
case 'visited':
advance_identifier(next_token.string);
break;
case 'lang':
advance_identifier('lang');
advance('(');
if (!next_token.identifier) {
warn('expected_lang_a');
}
advance(')');
break;
case 'nth-child':
case 'nth-last-child':
case 'nth-last-of-type':
case 'nth-of-type':
advance_identifier(next_token.string);
advance('(');
style_child();
advance(')');
break;
case 'not':
advance_identifier('not');
advance('(');
if (next_token.id === ':' && peek(0).string === 'not') {
warn('not');
}
style_selector();
advance(')');
break;
default:
warn('expected_pseudo_a');
}
break;
case '#':
advance('#');
if (!next_token.identifier) {
warn('expected_id_a');
}
advance();
break;
case '*':
advance('*');
break;
case '.':
advance('.');
if (!next_token.identifier) {
warn('expected_class_a');
}
advance();
break;
case '[':
advance('[');
if (!next_token.identifier) {
warn('expected_attribute_a');
}
advance();
if (next_token.id === '=' || next_token.string === '~=' ||
next_token.string === '$=' ||
next_token.string === '|=' ||
next_token.id === '*=' ||
next_token.id === '^=') {
advance();
if (next_token.id !== '(string)') {
warn('expected_string_a');
}
advance();
}
advance(']');
break;
default:
stop('expected_selector_a');
}
}
}
function style_pattern() {
if (next_token.id === '{') {
warn('expected_style_pattern');
}
for (;;) {
style_selector();
if (next_token.id === '</' || next_token.id === '{' ||
next_token.id === '}' || next_token.id === '(end)') {
return '';
}
if (next_token.id === ',') {
comma();
}
}
}
function style_list() {
while (next_token.id !== '}' && next_token.id !== '</' &&
next_token.id !== '(end)') {
style_pattern();
xmode = 'styleproperty';
if (next_token.id === ';') {
semicolon();
} else {
advance('{');
substyle();
xmode = 'style';
advance('}');
}
}
}
function styles() {
var i;
while (next_token.id === '@') {
i = peek();
advance('@');
switch (next_token.string) {
case 'import':
advance_identifier('import');
if (!css_url()) {
warn('expected_a_b',
next_token, 'url', artifact());
advance();
}
semicolon();
break;
case 'media':
advance_identifier('media');
for (;;) {
if (!next_token.identifier || css_media[next_token.string] !== true) {
stop('expected_media_a');
}
advance();
if (next_token.id !== ',') {
break;
}
comma();
}
advance('{');
style_list();
advance('}');
break;
case 'font-face':
advance_identifier('font-face');
advance('{');
font_face();
advance('}');
break;
default:
stop('expected_at_a');
}
}
style_list();
}
// Parse HTML
function do_begin(n) {
if (n !== 'html' && !option.fragment) {
if (n === 'div' && option.adsafe) {
stop('adsafe_fragment');
} else {
stop('expected_a_b', token, 'html', n);
}
}
if (option.adsafe) {
if (n === 'html') {
stop('adsafe_html', token);
}
if (option.fragment) {
if (n !== 'div') {
stop('adsafe_div', token);
}
} else {
stop('adsafe_fragment', token);
}
}
option.browser = true;
}
function do_attribute(a, v) {
var u, x;
if (a === 'id') {
u = typeof v === 'string' ? v.toUpperCase() : '';
if (ids[u] === true) {
warn('duplicate_a', next_token, v);
}
if (!/^[A-Za-z][A-Za-z0-9._:\-]*$/.test(v)) {
warn('bad_id_a', next_token, v);
} else if (option.adsafe) {
if (adsafe_id) {
if (v.slice(0, adsafe_id.length) !== adsafe_id) {
warn('adsafe_prefix_a', next_token, adsafe_id);
} else if (!/^[A-Z]+_[A-Z]+$/.test(v)) {
warn('adsafe_bad_id');
}
} else {
adsafe_id = v;
if (!/^[A-Z]+_$/.test(v)) {
warn('adsafe_bad_id');
}
}
}
x = v.search(dx);
if (x >= 0) {
warn('unexpected_char_a_b', token, v.charAt(x), a);
}
ids[u] = true;
} else if (a === 'class' || a === 'type' || a === 'name') {
x = v.search(qx);
if (x >= 0) {
warn('unexpected_char_a_b', token, v.charAt(x), a);
}
ids[u] = true;
} else if (a === 'href' || a === 'background' ||
a === 'content' || a === 'data' ||
a.indexOf('src') >= 0 || a.indexOf('url') >= 0) {
if (option.safe && ux.test(v)) {
stop('bad_url_a', next_token, v);
}
urls.push(v);
} else if (a === 'for') {
if (option.adsafe) {
if (adsafe_id) {
if (v.slice(0, adsafe_id.length) !== adsafe_id) {
warn('adsafe_prefix_a', next_token, adsafe_id);
} else if (!/^[A-Z]+_[A-Z]+$/.test(v)) {
warn('adsafe_bad_id');
}
} else {
warn('adsafe_bad_id');
}
}
} else if (a === 'name') {
if (option.adsafe && v.indexOf('_') >= 0) {
warn('adsafe_name_a', next_token, v);
}
}
}
function do_tag(tag, name, attribute) {
var i, script, x;
src = false;
if (stack.length > 0) {
if (name === 'html') {
stop('unexpected_a', token, name);
}
x = tag.parent;
if (x) {
if (x.indexOf(' ' + stack[stack.length - 1].name + ' ') < 0) {
stop('tag_a_in_b', token, name, x);
}
} else if (x !== false && !option.adsafe && !option.fragment) {
i = stack.length;
do {
if (i <= 0) {
stop('tag_a_in_b', token, name, 'body');
}
i -= 1;
} while (stack[i].name !== 'body');
}
}
switch (name) {
case 'div':
if (option.adsafe && stack.length === 1 && !adsafe_id) {
warn('adsafe_missing_id');
}
break;
case 'script':
xmode = 'script';
advance('>');
if (attribute.lang) {
warn('lang', token);
}
if (option.adsafe && stack.length !== 1) {
warn('adsafe_placement', token);
}
if (attribute.src) {
if (option.adsafe && (!adsafe_may || !approved[attribute.src])) {
warn('adsafe_source', token);
}
} else {
step_in(next_token.from);
edge();
use_strict();
adsafe_top = true;
script = statements();
// JSLint is also the static analyzer for ADsafe. See www.ADsafe.org.
if (option.adsafe) {
if (adsafe_went) {
stop('adsafe_script', token);
}
if (script.length !== 1 ||
aint(script[0], 'id', '(') ||
aint(script[0].first, 'id', '.') ||
aint(script[0].first.first, 'string', 'ADSAFE') ||
aint(script[0].second[0], 'string', adsafe_id)) {
stop('adsafe_id_go');
}
switch (script[0].first.second.string) {
case 'id':
if (adsafe_may || adsafe_went ||
script[0].second.length !== 1) {
stop('adsafe_id', next_token);
}
adsafe_may = true;
break;
case 'go':
if (adsafe_went) {
stop('adsafe_go');
}
if (script[0].second.length !== 2 ||
aint(script[0].second[1], 'id', 'function') ||
!script[0].second[1].first ||
aint(script[0].second[1].first[0], 'string', 'dom') ||
script[0].second[1].first.length > 2 ||
(script[0].second[1].first.length === 2 &&
aint(script[0].second[1].first[1], 'string', 'lib'))) {
stop('adsafe_go', next_token);
}
adsafe_went = true;
break;
default:
stop('adsafe_id_go');
}
}
indent = null;
}
xmode = 'html';
advance('</');
advance_identifier('script');
xmode = 'outer';
break;
case 'style':
xmode = 'style';
advance('>');
styles();
xmode = 'html';
advance('</');
advance_identifier('style');
break;
case 'input':
switch (attribute.type) {
case 'button':
case 'checkbox':
case 'color':
case 'date':
case 'datetime':
case 'datetime-local':
case 'month':
case 'number':
case 'radio':
case 'range':
case 'reset':
case 'submit':
case 'time':
case 'week':
break;
case 'email':
case 'file':
case 'hidden':
case 'image':
case 'password':
case 'search':
case 'tel':
case 'text':
case 'url':
if (option.adsafe && attribute.autocomplete !== 'off') {
warn('adsafe_autocomplete');
}
break;
default:
warn('bad_type');
}
break;
case 'applet':
case 'body':
case 'embed':
case 'frame':
case 'frameset':
case 'head':
case 'iframe':
case 'noembed':
case 'noframes':
case 'object':
case 'param':
if (option.adsafe) {
warn('adsafe_tag', next_token, name);
}
break;
}
}
function closetag(name) {
return '</' + name + '>';
}
function html() {
var attribute, attributes, is_empty, name, old_white = option.white,
quote, tag_name, tag, value, wmode;
xmode = 'html';
xquote = '';
stack = null;
for (;;) {
switch (next_token.string) {
case '<':
xmode = 'html';
advance('<');
attributes = {};
tag_name = next_token;
name = tag_name.string;
advance_identifier(name);
tag_name.name = name;
if (!stack) {
stack = [];
do_begin(name);
}
tag = html_tag[name];
if (typeof tag !== 'object') {
tag = {parent: false};
warn('unrecognized_tag_a', tag_name, name === name.toLowerCase()
? name
: name + ' (capitalization error)');
} else {
is_empty = tag.empty;
}
tag_name.type = name;
for (;;) {
if (next_token.id === '/') {
advance('/');
if (next_token.id !== '>') {
warn('expected_a_b', next_token, '>', artifact());
}
break;
}
if (next_token.id && next_token.id.charAt(0) === '>') {
break;
}
if (!next_token.identifier) {
if (next_token.id === '(end)' || next_token.id === '(error)') {
warn('expected_a_b', next_token, '>', artifact());
}
warn('bad_name_a');
}
option.white = false;
spaces();
attribute = next_token.string;
option.white = old_white;
advance();
if (attribute !== attribute.toLowerCase()) {
warn('attribute_case_a', token);
}
attribute = attribute.toLowerCase();
xquote = '';
if (Object.prototype.hasOwnProperty.call(attributes, attribute)) {
warn('duplicate_a', token, attribute);
}
if (attribute.slice(0, 2) === 'on') {
if (!option.on) {
warn('html_handlers');
}
xmode = 'scriptstring';
advance('=');
quote = next_token.id;
if (quote !== '"' && quote !== '\'') {
stop('expected_a_b', next_token, '"', artifact());
}
xquote = quote;
wmode = option.white;
option.white = true;
advance(quote);
use_strict();
statements();
option.white = wmode;
if (next_token.id !== quote) {
stop('expected_a_b', next_token, quote, artifact());
}
xmode = 'html';
xquote = '';
advance(quote);
value = false;
} else if (attribute === 'style') {
xmode = 'scriptstring';
advance('=');
quote = next_token.id;
if (quote !== '"' && quote !== '\'') {
stop('expected_a_b', next_token, '"', artifact());
}
xmode = 'styleproperty';
xquote = quote;
advance(quote);
substyle();
xmode = 'html';
xquote = '';
advance(quote);
value = false;
} else {
if (next_token.id === '=') {
advance('=');
value = next_token.string;
if (!next_token.identifier &&
next_token.id !== '"' &&
next_token.id !== '\'' &&
next_token.id !== '(string)' &&
next_token.id !== '(number)' &&
next_token.id !== '(color)') {
warn('expected_attribute_value_a', token, attribute);
}
advance();
} else {
value = true;
}
}
attributes[attribute] = value;
do_attribute(attribute, value);
}
do_tag(tag, name, attributes);
if (!is_empty) {
stack.push(tag_name);
}
xmode = 'outer';
advance('>');
break;
case '</':
xmode = 'html';
advance('</');
if (!next_token.identifier) {
warn('bad_name_a');
}
name = next_token.string;
advance();
if (!stack) {
stop('unexpected_a', next_token, closetag(name));
}
tag_name = stack.pop();
if (!tag_name) {
stop('unexpected_a', next_token, closetag(name));
}
if (tag_name.name !== name) {
stop('expected_a_b',
next_token, closetag(tag_name.name), closetag(name));
}
if (next_token.id !== '>') {
stop('expected_a_b', next_token, '>', artifact());
}
xmode = 'outer';
advance('>');
break;
case '<!':
if (option.safe) {
warn('adsafe_a');
}
xmode = 'html';
for (;;) {
advance();
if (next_token.id === '>' || next_token.id === '(end)') {
break;
}
if (next_token.string.indexOf('--') >= 0) {
stop('unexpected_a', next_token, '--');
}
if (next_token.string.indexOf('<') >= 0) {
stop('unexpected_a', next_token, '<');
}
if (next_token.string.indexOf('>') >= 0) {
stop('unexpected_a', next_token, '>');
}
}
xmode = 'outer';
advance('>');
break;
case '(end)':
if (stack.length !== 0) {
warn('missing_a', next_token, '</' + stack.pop().string + '>');
}
return;
default:
if (next_token.id === '(end)') {
stop('missing_a', next_token,
'</' + stack[stack.length - 1].string + '>');
} else {
advance();
}
}
if (stack && stack.length === 0 && (option.adsafe ||
!option.fragment || next_token.id === '(end)')) {
break;
}
}
if (next_token.id !== '(end)') {
stop('unexpected_a');
}
}
// The actual JSLINT function itself.
itself = function JSLint(the_source, the_option) {
var i, predef, tree;
JSLINT.errors = [];
JSLINT.tree = '';
JSLINT.properties = '';
begin = prev_token = token = next_token =
Object.create(syntax['(begin)']);
predefined = {};
add_to_predefined(standard);
property = {};
if (the_option) {
option = Object.create(the_option);
predef = option.predef;
if (predef) {
if (Array.isArray(predef)) {
for (i = 0; i < predef.length; i += 1) {
predefined[predef[i]] = true;
}
} else if (typeof predef === 'object') {
add_to_predefined(predef);
}
}
do_safe();
} else {
option = {};
}
option.indent = +option.indent || 4;
option.maxerr = +option.maxerr || 50;
adsafe_id = '';
adsafe_may = adsafe_top = adsafe_went = false;
approved = {};
if (option.approved) {
for (i = 0; i < option.approved.length; i += 1) {
approved[option.approved[i]] = option.approved[i];
}
} else {
approved.test = 'test';
}
tab = '';
for (i = 0; i < option.indent; i += 1) {
tab += ' ';
}
global_scope = scope = {};
global_funct = funct = {
'(scope)': scope,
'(breakage)': 0,
'(loopage)': 0
};
functions = [funct];
comments_off = false;
ids = {};
in_block = false;
indent = null;
json_mode = false;
lookahead = [];
node_js = false;
prereg = true;
src = false;
stack = null;
strict_mode = false;
urls = [];
var_mode = null;
warnings = 0;
xmode = '';
lex.init(the_source);
assume();
try {
advance();
if (next_token.id === '(number)') {
stop('unexpected_a');
} else if (next_token.string.charAt(0) === '<') {
html();
if (option.adsafe && !adsafe_went) {
warn('adsafe_go', this);
}
} else {
switch (next_token.id) {
case '{':
case '[':
json_mode = true;
json_value();
break;
case '@':
case '*':
case '#':
case '.':
case ':':
xmode = 'style';
advance();
if (token.id !== '@' || !next_token.identifier ||
next_token.string !== 'charset' || token.line !== 1 ||
token.from !== 1) {
stop('css');
}
advance();
if (next_token.id !== '(string)' &&
next_token.string !== 'UTF-8') {
stop('css');
}
advance();
semicolon();
styles();
break;
default:
if (option.adsafe && option.fragment) {
stop('expected_a_b',
next_token, '<div>', artifact());
}
// If the first token is a semicolon, ignore it. This is sometimes used when
// files are intended to be appended to files that may be sloppy. A sloppy
// file may be depending on semicolon insertion on its last line.
step_in(1);
if (next_token.id === ';' && !node_js) {
semicolon();
}
adsafe_top = true;
tree = statements();
begin.first = tree;
itself.tree = begin;
if (option.adsafe && (tree.length !== 1 ||
aint(tree[0], 'id', '(') ||
aint(tree[0].first, 'id', '.') ||
aint(tree[0].first.first, 'string', 'ADSAFE') ||
aint(tree[0].first.second, 'string', 'lib') ||
tree[0].second.length !== 2 ||
tree[0].second[0].id !== '(string)' ||
aint(tree[0].second[1], 'id', 'function'))) {
stop('adsafe_lib');
}
if (tree.disrupt) {
warn('weird_program', prev_token);
}
}
}
indent = null;
advance('(end)');
itself.property = property;
} catch (e) {
if (e) { // ~~
JSLINT.errors.push({
reason : e.message,
line : e.line || next_token.line,
character : e.character || next_token.from
}, null);
}
}
return JSLINT.errors.length === 0;
};
// Data summary.
itself.data = function () {
var data = {functions: []},
function_data,
globals,
i,
j,
kind,
name,
the_function,
undef = [],
unused = [];
if (itself.errors.length) {
data.errors = itself.errors;
}
if (json_mode) {
data.json = true;
}
if (urls.length > 0) {
data.urls = urls;
}
globals = Object.keys(global_scope).filter(function (value) {
return value.charAt(0) !== '(' && typeof standard[value] !== 'boolean';
});
if (globals.length > 0) {
data.globals = globals;
}
for (i = 1; i < functions.length; i += 1) {
the_function = functions[i];
function_data = {};
for (j = 0; j < functionicity.length; j += 1) {
function_data[functionicity[j]] = [];
}
for (name in the_function) {
if (Object.prototype.hasOwnProperty.call(the_function, name)) {
if (name.charAt(0) !== '(') {
kind = the_function[name];
if (kind === 'unction' || kind === 'unparam') {
kind = 'unused';
}
if (Array.isArray(function_data[kind])) {
function_data[kind].push(name);
if (kind === 'unused') {
unused.push({
name: name,
line: the_function['(line)'],
'function': the_function['(name)']
});
} else if (kind === 'undef') {
undef.push({
name: name,
line: the_function['(line)'],
'function': the_function['(name)']
});
}
}
}
}
}
for (j = 0; j < functionicity.length; j += 1) {
if (function_data[functionicity[j]].length === 0) {
delete function_data[functionicity[j]];
}
}
function_data.name = the_function['(name)'];
function_data.params = the_function['(params)'];
function_data.line = the_function['(line)'];
data.functions.push(function_data);
}
if (unused.length > 0) {
data.unused = unused;
}
if (undef.length > 0) {
data['undefined'] = undef;
}
return data;
};
itself.error_report = function (data) {
var evidence, i, output = [], snippets, warning;
if (data.errors) {
if (data.json) {
output.push('<cite>JSON: bad.</cite><br>');
}
for (i = 0; i < data.errors.length; i += 1) {
warning = data.errors[i];
if (warning) {
evidence = warning.evidence || '';
output.push('<cite>');
if (isFinite(warning.line)) {
output.push('<address>line ' +
String(warning.line) +
' character ' + String(warning.character) +
'</address>');
}
output.push(warning.reason.entityify() + '</cite>');
if (evidence) {
output.push('<pre>' + evidence.entityify() + '</pre>');
}
}
}
}
if (data.unused || data['undefined']) {
output.push('<dl>');
if (data['undefined']) {
output.push('<dt>undefined</dt><dd>');
snippets = [];
for (i = 0; i < data['undefined'].length; i += 1) {
snippets[i] = '<code>' + data['undefined'][i].name +
'</code> <address>' +
data['undefined'][i]['function'] + ' ' +
String(data['undefined'][i].line) + '</address>';
}
output.push(snippets.join(', '));
output.push('</dd>');
}
if (data.unused) {
output.push('<dt>unused</dt><dd>');
snippets = [];
for (i = 0; i < data.unused.length; i += 1) {
snippets[i] = '<code>' + data.unused[i].name + '</code> <address>' +
data.unused[i]['function'] + ' ' +
String(data.unused[i].line) + '</address>';
}
output.push(snippets.join(', '));
output.push('</dd>');
}
output.push('</dl>');
}
return output.join('');
};
itself.report = function (data) {
var dl, i, j, names, output = [], the_function;
function detail(h, value) {
var comma_needed, singularity;
if (Array.isArray(value)) {
output.push("<dt>" + h + "</dt><dd>");
value.sort().forEach(function (item) {
if (item !== singularity) {
singularity = item;
output.push((comma_needed ? ', ' : '') + singularity);
comma_needed = true;
}
});
output.push("</dd>");
} else if (value) {
output.push("<dt>" + h + "</dt><dd>", value, "</dd>");
}
}
output.push('<dl>');
if (data.urls) {
detail('url', data.urls);
dl = true;
}
if (data.globals) {
detail('global', data.globals);
dl = true;
} else if (xmode === 'style') {
output.push("<dt>CSS.</dt>");
} else if (data.json) {
if (!data.errors) {
output.push("<dt>JSON: good.</dt>");
}
} else {
output.push("<dt><i>No new global variables introduced.</i></dt>");
}
if (dl) {
output.push("</dl>");
} else {
output[0] = '';
}
if (data.functions) {
for (i = 0; i < data.functions.length; i += 1) {
the_function = data.functions[i];
names = [];
if (the_function.params) {
for (j = 0; j < the_function.params.length; j += 1) {
names[j] = the_function.params[j].string;
}
}
output.push('<dl><address>line ' +
String(the_function.line) + '</address>' +
the_function.name.entityify() +
'(' + names.join(', ') + ')');
detail('undefined', the_function['undefined']);
detail('unused', the_function.unused);
detail('closure', the_function.closure);
detail('variable', the_function['var']);
detail('exception', the_function.exception);
detail('outer', the_function.outer);
detail('global', the_function.global);
detail('label', the_function.label);
output.push('</dl>');
}
}
return output.join('');
};
itself.properties_report = function (property) {
if (!property) {
return '';
}
var i,
key,
keys = Object.keys(property).sort(),
length,
mem = ' ',
name,
not_first = false,
output = ['/*properties'];
for (i = 0; i < keys.length; i += 1) {
key = keys[i];
if (property[key] > 0) {
if (not_first) {
mem += ', ';
}
name = ix.test(key)
? key
: '\'' + key.replace(nx, sanitize) + '\'';
length += name.length + 2;
if (mem.length + name.length > 80) {
output.push(mem);
mem = ' ';
}
mem += name;
not_first = true;
}
}
output.push(mem, '*/\n');
return output.join('\n');
};
itself.jslint = itself;
itself.edition = '2013-02-03';
return itself;
}());