+++ /dev/null
-// jslint.js
-// 2012-02-23
-
-// 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 Function Report, which shows all of the functions
-// and the parameters and vars that they use. This can be used to find
-// implied global variables and other problems. The report is in HTML and
-// can be inserted in an HTML <body>.
-
-// var myReport = JSLINT.report(errors_only);
-
-// If errors_only is true, then the report will be limited to only errors.
-
-// 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 obtain the parse tree that JSLint constructed while parsing. The
-// latest tree is kept in JSLINT.tree. A nice stringication 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.
-// 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
-// cap true, if upper case HTML should be allowed
-// '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
-// sub true, if all forms of subscript notation are tolerated
-// vars true, if multiple var statements per function should be allowed
-// white true, if sloppy whitespace is tolerated
-// widget true if the Yahoo Widgets globals should be predefined
-// windows true, if MS Windows-specific globals should be predefined
-
-// For example:
-
-/*jslint
- evil: true, nomen: true, regexp: true
-*/
-
-// 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, br, braille, browser, button, c,
- call, canvas, cap, 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, 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, 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, label_a_b, 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, member, 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, mixed, 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, 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, style, styleproperty, sub,
- subscript, substr, sup, supplant, 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, 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_property_a, unexpected_space_a_b, '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,
- 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', widget, 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,
- cap : 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,
- sub : true,
- vars : true,
- white : true,
- widget : 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', '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.",
- label_a_b: "Label '{a}' on '{b}' statement.",
- 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.",
- mixed: "Mixed spaces and tabs.",
- 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.",
- tag_a_in_b: "A '<{a}>' must be within '<{b}>'.",
- 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_property_a: "Unexpected /*property*/ '{a}'.",
- unexpected_space_a_b: "Unexpected space between '{a}' and '{b}'.",
- 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.",
- 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: {},
- 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: {},
- 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,
-
-// widget contains the global names which are provided to a Yahoo
-// (fna Konfabulator) widget.
-
- widget = array_to_object([
- 'alert', 'animator', 'appleScript', 'beep', 'bytesToUIString',
- 'Canvas', 'chooseColor', 'chooseFile', 'chooseFolder',
- 'closeWidget', 'COM', 'convertPathToHFS', 'convertPathToPlatform',
- 'CustomAnimation', 'escape', 'FadeAnimation', 'filesystem', 'Flash',
- 'focusWidget', 'form', 'FormField', 'Frame', 'HotKey', 'Image',
- 'include', 'isApplicationRunning', 'iTunes', 'konfabulatorVersion',
- 'log', 'md5', 'MenuItem', 'MoveAnimation', 'openURL', 'play',
- 'Point', 'popupMenu', 'preferenceGroups', 'preferences', 'print',
- 'prompt', 'random', 'Rectangle', 'reloadWidget', 'ResizeAnimation',
- 'resolvePath', 'resumeUpdates', 'RotateAnimation', 'runCommand',
- 'runCommandInBg', 'saveAs', 'savePreferences', 'screen',
- 'ScrollBar', 'showWidgetPreferences', 'sleep', 'speak', 'Style',
- 'suppressUpdates', 'system', 'tellWidget', 'Text', 'TextArea',
- 'Timer', 'unescape', 'updateNow', 'URL', 'Web', 'widget', 'Window',
- 'XMLDOM', 'XMLHttpRequest', 'yahooCheckLogin', 'yahooLogin',
- 'yahooLogout'
- ], true),
-
- 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-\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
- sx = /^\s*([{}:#%.=,>+\[\]@()"';]|[*$\^~]=|[a-zA-Z_][a-zA-Z0-9_\-]*|[0-9]+|<\/|\/\*)/,
- ssx = /^\s*([@#!"'};:\-%.=,+\[\]()*_]|[a-zA-Z][a-zA-Z0-9._\-]*|\/\*?|\d+(?:\.\d+)?|<\/)/,
-// token
- tx = /^\s*([(){}\[\]\?.,:;'"~#@`]|={1,3}|\/(\*(jslint|properties|property|members?|globals?)?|=|\/)?|\*[\/=]?|\+(?:=|\++)?|-(?:=|-+)?|[\^%]=?|&[&=]?|\|[|=]?|>{1,3}=?|<(?:[\/=!]|\!(\[|--)?|<=?)?|\!={0,2}|[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;
- }
- if (option.widget) {
- add_to_predefined(widget);
- option.widget = false;
- }
- }
- }
-
-
-// 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) {
- warn_at('mixed', line, at + 1);
- }
- source_row = source_row.replace(/\t/g, tab);
- 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);
- }
- }
-
- 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 += 1;
- 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.widget =
- 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.newcap = false;
- 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);
- 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';
- s.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 = typeof f === 'function'
- ? f
- : function () {
- if (s === 'typeof') {
- one_space();
- } else {
- no_space_only();
- }
- this.first = expression(150);
- this.arity = 'prefix';
- if (this.id === '++' || this.id === '--') {
- if (!option.plusplus) {
- warn('unexpected_a', this);
- } else if ((!this.first.identifier || this.first.reserved) &&
- this.first.id !== '.' && this.first.id !== '[') {
- warn('bad_operand', this);
- }
- }
- return this;
- };
- 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 === '.' && 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);
- }
- 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() {
- if (next_token.identifier) {
- advance();
- if (option.safe && banned[token.string]) {
- warn('adsafe_a', token);
- } else if (token.reserved && !option.es5) {
- warn('expected_identifier_a_reserved', token);
- }
- return token.string;
- }
- }
-
-
- function identifier() {
- var i = optional_identifier();
- 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) {
- warn('label_a_b', next_token, label.string, artifact());
- } else if (jx.test(label.string + ':')) {
- warn('url', label);
- } else if (funct === global_funct) {
- stop('unexpected_a', token);
- }
- 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', token);
- }
- 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)'].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 () {
- this.first = expression(0);
- this.arity = 'prefix';
- if (option.es5) {
- warn('expected_a_b', this, 'undefined', 'void');
- } else if (this.first.number !== 0) {
- warn('expected_a_b', this.first, '0', artifact(this.first));
- }
- return this;
- });
-
- 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('+', 'num');
- 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 () {
- one_space();
- var p = expression(0);
- if (!p || (p.id !== '.' && p.id !== '[')) {
- warn('deleted');
- }
- this.first = p;
- return this;
- });
-
-
- prefix('~', function () {
- no_space_only();
- if (!option.bitwise) {
- warn('unexpected_a', this);
- }
- expression(150);
- return this;
- });
- prefix('!', function () {
- no_space_only();
- this.first = expected_condition(expression(150));
- this.arity = 'prefix';
- if (bang[this.first.id] === true || this.first.assign) {
- warn('confusing_a', this);
- }
- return this;
- });
- prefix('typeof', null);
- prefix('new', function () {
- one_space();
- var c = expression(160), n, p, v;
- this.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', this);
- }
- if (next_token.id !== '(') {
- warn('missing_a', next_token, '()');
- }
- return this;
- });
-
- infix('(', 160, function (left, that) {
- var 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();
- p.push(expression(10));
- 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);
- }
- 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);
- }
- }
- that.first = left;
- that.second = p;
- return that;
- }, true);
-
- prefix('(', function () {
- 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(')', this);
- if (value.id === 'function') {
- switch (next_token.id) {
- case '(':
- warn('move_invocation');
- break;
- case '.':
- case '[':
- warn('unexpected_a');
- break;
- default:
- warn('bad_wrap', this);
- }
- }
- 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.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) {
- warn('adsafe_subscript_a', e);
- }
- }
- step_out(']', that);
- no_space(prev_token, token);
- that.first = left;
- that.second = e;
- return that;
- }, true);
-
- prefix('[', function () {
- this.arity = 'prefix';
- this.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();
- this.first.push(expression(10));
- if (next_token.id === ',') {
- comma();
- if (next_token.id === ']' && !option.es5) {
- warn('unexpected_a', token);
- break;
- }
- } else {
- break;
- }
- }
- step_out(']', this);
- return this;
- }, 170);
-
-
- function property_name() {
- var id = optional_identifier(true);
- 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 () {
- var get, i, j, name, p, set, seen = {};
- this.arity = 'prefix';
- this.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) {
- 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);
- }
- this.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('}', this);
- return this;
- });
-
- 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();
- 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();
- 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 () {
- if (!option.anon) {
- one_space();
- }
- var id = optional_identifier();
- if (id) {
- no_space();
- } else {
- id = '';
- }
- do_function(this, 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');
- }
- this.arity = 'function';
- return this;
- });
-
- 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,
- 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 = [];
- 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(20);
- }
- 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_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'],
- '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, option.cap
- ? next_token.string.toLowerCase()
- : 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(name, attribute) {
- var i, tag = html_tag[name], script, x;
- src = false;
- if (!tag) {
- stop(
- bundle.unrecognized_tag_a,
- next_token,
- name === name.toLowerCase()
- ? name
- : name + ' (capitalization error)'
- );
- }
- 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 (!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 'radio':
- case 'reset':
- case 'submit':
- break;
- case 'file':
- case 'hidden':
- case 'image':
- case 'password':
- case 'text':
- 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, 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);
- if (option.cap) {
- name = name.toLowerCase();
- }
- tag_name.name = name;
- if (!stack) {
- stack = [];
- do_begin(name);
- }
- tag = html_tag[name];
- if (typeof tag !== 'object') {
- stop('unrecognized_tag_a', tag_name, name);
- }
- 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 (!option.cap && 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);
- tag = 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);
- tag = false;
- } else {
- if (next_token.id === '=') {
- advance('=');
- tag = next_token.string;
- if (!next_token.identifier &&
- next_token.id !== '"' &&
- next_token.id !== '\'' &&
- next_token.id !== '(string)' &&
- next_token.id !== '(string)' &&
- next_token.id !== '(color)') {
- warn('expected_attribute_value_a', token, attribute);
- }
- advance();
- } else {
- tag = true;
- }
- }
- attributes[attribute] = tag;
- do_attribute(attribute, tag);
- }
- do_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;
- if (option.cap) {
- name = name.toLowerCase();
- }
- 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)':
- 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 = '';
- 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;
- JSLINT.tree = begin;
- // infer_types(tree);
- 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)');
- } 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,
- members = [],
- 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;
- }
-
- members = [];
- for (name in property) {
- if (typeof property[name] === 'number') {
- data.member = property;
- break;
- }
- }
-
- return data;
- };
-
-
- itself.report = function (errors_only) {
- var data = itself.data(), err, evidence, i, italics, j, key, keys,
- length, mem = '', name, names, not_first, output = [], snippets,
- the_function, warning;
-
- function detail(h, value) {
- var comma_needed, singularity;
- if (Array.isArray(value)) {
- output.push('<div><i>' + h + '</i> ');
- value.sort().forEach(function (item) {
- if (item !== singularity) {
- singularity = item;
- output.push((comma_needed ? ', ' : '') + singularity);
- comma_needed = true;
- }
- });
- output.push('</div>');
- } else if (value) {
- output.push('<div><i>' + h + '</i> ' + value + '</div>');
- }
- }
-
- if (data.errors || data.unused || data['undefined']) {
- err = true;
- output.push('<div id=errors><i>Error:</i>');
- if (data.errors) {
- for (i = 0; i < data.errors.length; i += 1) {
- warning = data.errors[i];
- if (warning) {
- evidence = warning.evidence || '';
- output.push('<p>Problem' + (isFinite(warning.line)
- ? ' at line ' + String(warning.line) +
- ' character ' + String(warning.character)
- : '') +
- ': ' + warning.reason.entityify() +
- '</p><p class=evidence>' +
- (evidence && (evidence.length > 80
- ? evidence.slice(0, 77) + '...'
- : evidence).entityify()) + '</p>');
- }
- }
- }
-
- if (data['undefined']) {
- snippets = [];
- for (i = 0; i < data['undefined'].length; i += 1) {
- snippets[i] = '<code><u>' + data['undefined'][i].name + '</u></code> <i>' +
- String(data['undefined'][i].line) + ' </i> <small>' +
- data['undefined'][i]['function'] + '</small>';
- }
- output.push('<p><i>Undefined variable:</i> ' + snippets.join(', ') + '</p>');
- }
- if (data.unused) {
- snippets = [];
- for (i = 0; i < data.unused.length; i += 1) {
- snippets[i] = '<code><u>' + data.unused[i].name + '</u></code> <i>' +
- String(data.unused[i].line) + ' </i> <small>' +
- data.unused[i]['function'] + '</small>';
- }
- output.push('<p><i>Unused variable:</i> ' + snippets.join(', ') + '</p>');
- }
- if (data.json) {
- output.push('<p>JSON: bad.</p>');
- }
- output.push('</div>');
- }
-
- if (!errors_only) {
-
- output.push('<br><div id=functions>');
-
- if (data.urls) {
- detail("URLs<br>", data.urls, '<br>');
- }
-
- if (xmode === 'style') {
- output.push('<p>CSS.</p>');
- } else if (data.json && !err) {
- output.push('<p>JSON: good.</p>');
- } else if (data.globals) {
- output.push('<div><i>Global</i> ' +
- data.globals.sort().join(', ') + '</div>');
- } else {
- output.push('<div><i>No new global variables introduced.</i></div>');
- }
-
- 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('<br><div class=function><i>' +
- String(the_function.line) + '</i> ' +
- the_function.name.entityify() +
- '(' + names.join(', ') + ')</div>');
- detail('<big><b>Undefined</b></big>', the_function['undefined']);
- detail('<big><b>Unused</b></big>', 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);
- }
-
- if (data.member) {
- keys = Object.keys(data.member);
- if (keys.length) {
- keys = keys.sort();
- output.push('<br><pre id=properties>/*properties<br>');
- mem = ' ';
- italics = 0;
- j = 0;
- not_first = false;
- for (i = 0; i < keys.length; i += 1) {
- key = keys[i];
- if (data.member[key] > 0) {
- if (not_first) {
- mem += ', ';
- }
- name = ix.test(key)
- ? key
- : '\'' + key.entityify().replace(nx, sanitize) + '\'';
- length += name.length + 2;
- if (data.member[key] === 1) {
- name = '<i>' + name + '</i>';
- italics += 1;
- j = 1;
- }
- if (mem.length + name.length - (italics * 7) > 80) {
- output.push(mem + '<br>');
- mem = ' ';
- italics = j;
- }
- mem += name;
- j = 0;
- not_first = true;
- }
- }
- output.push(mem + '<br>*/</pre>');
- }
- output.push('</div>');
- }
- }
- return output.join('');
- };
- itself.jslint = itself;
-
- itself.edition = '2012-02-23';
-
- return itself;
-}());
git.r.bdr.sh / rbdr / dotfiles / commitdiff