// (C)2011 Douglas Crockford // www.JSLint.com var JSLINT=(function(){'use strict';function array_to_object(array,value){var i,length=array.length,object=Object.create(null);for(i=0;i':true,'>=':true,'+':true,'-':true,'*':true,'/':true,'%':true},begin,block_var,browser=array_to_object(['clearInterval','clearTimeout','document','event','FormData','frames','history','Image','localStorage','location','name','navigator','Option','parent','screen','sessionStorage','setInterval','setTimeout','Storage','window','XMLHttpRequest'],false),bundle={a_label:"'{a}' is a statement label.",a_scope:"'{a}' used out of scope.",already_defined:"'{a}' is already defined.",and:"The '&&' subexpression should be wrapped in parens.",assignment_expression:"Unexpected assignment expression.",assignment_function_expression:"Expected an assignment or "+"function call and instead saw an expression.",avoid_a:"Avoid '{a}'.",bad_assignment:"Bad assignment.",bad_constructor:"Bad constructor.",bad_in_a:"Bad for in variable '{a}'.",bad_invocation:"Bad invocation.",bad_new:"Do not use 'new' for side effects.",bad_number:"Bad number '{a}'.",bad_operand:"Bad operand.",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}'.",dangling_a:"Unexpected dangling '_' in '{a}'.",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_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_a_at_b_c:"Expected '{a}' at column {b}, not column {c}.",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_number_a:"Expected a number and instead saw '{a}'.",expected_operator_a:"Expected an operator and instead saw '{a}'.",expected_positive_a:"Expected a positive number 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}'.",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'.",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.",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_property:"Missing property name.",missing_space_a_b:"Missing space between '{a}' and '{b}'.",missing_use_strict:"Missing 'use strict' statement.",move_invocation:"Move the invocation into the parens that "+"contain the function.",move_var:"Move 'var' declarations to the top of the function.",name_function:"Missing name in function statement.",nested_comment:"Nested comment.",not:"Nested not.",not_a_constructor:"Do not use {a} as a constructor.",not_a_defined:"'{a}' has not been fully defined yet.",not_a_function:"'{a}' is not a function.",not_a_label:"'{a}' is not a label.",not_a_scope:"'{a}' is out of scope.",not_greater:"'{a}' should not be greater than '{b}'.",octal_a:"Don't use octal: '{a}'. Use '\\u....' instead.",parameter_arguments_a:"Do not mutate parameter '{a}' when using 'arguments'.",parameter_a_get_b:"Unexpected parameter '{a}' in get {b} function.",parameter_set_a:"Expected parameter (value) in set {a} function.",radix:"Missing radix parameter.",read_only:"Read only.",reserved_a:"Reserved name '{a}'.",scanned_a_b:"{a} ({b}% scanned).",slash_equal:"A regular expression literal can be confused with '/='.",statement_block:"Expected to see a statement and instead saw a block.",stopping:"Stopping.",strange_loop:"Strange loop.",strict:"Strict violation.",subscript:"['{a}'] is better written in dot notation.",sync_a:"Unexpected sync method: '{a}'.",tag_a_in_b:"A '<{a}>' must be within '<{b}>'.",todo_comment:"Unexpected TODO comment.",too_long:"Line too long.",too_many:"Too many errors.",trailing_decimal_a:"A trailing decimal point can be confused "+"with a dot: '.{a}'.",unclosed:"Unclosed string.",unclosed_comment:"Unclosed comment.",unclosed_regexp:"Unclosed regular expression.",unescaped_a:"Unescaped '{a}'.",unexpected_a:"Unexpected '{a}'.",unexpected_char_a:"Unexpected character '{a}'.",unexpected_comment:"Unexpected comment.",unexpected_label_a:"Unexpected label '{a}'.",unexpected_property_a:"Unexpected /*property*/ '{a}'.",unexpected_space_a_b:"Unexpected space between '{a}' and '{b}'.",unexpected_typeof_a:"Unexpected 'typeof'. "+"Use '===' to compare directly with {a}.",uninitialized_a:"Uninitialized '{a}'.",unnecessary_else:"Unnecessary 'else' after disruption.",unnecessary_initialize:"It is not necessary to initialize '{a}' "+"to 'undefined'.",unnecessary_use:"Unnecessary 'use strict'.",unreachable_a_b:"Unreachable '{a}' after '{b}'.",unsafe:"Unsafe character.",unused_a:"Unused '{a}'.",url:"JavaScript URL.",use_array:"Use the array literal notation [].",use_braces:"Spaces are hard to count. Use {{a}}.",use_object:"Use the object literal notation {} or Object.create(null).",use_or:"Use the || operator.",use_param:"Use a named parameter.",use_spaces:"Use spaces, not tabs.",used_before_a:"'{a}' was used before it was defined.",var_a_not:"Variable {a} was not declared correctly.",var_loop:"Don't declare variables in a loop.",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."},closure=array_to_object(['goog'],false),comments,comments_off,couch=array_to_object(['emit','getRow','isArray','log','provides','registerType','require','send','start','sum','toJSON'],false),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,functions,global_funct,global_scope,in_block,indent,itself,json_mode,lex,lines,lookahead,node=array_to_object(['Buffer','clearImmediate','clearInterval','clearTimeout','console','exports','global','module','process','querystring','require','setImmediate','setInterval','setTimeout','__dirname','__filename'],false),node_js,numbery=array_to_object(['indexOf','lastIndexOf','search'],true),next_token,option,predefined,prereg,prev_token,property,protosymbol,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,semicolon_coda=array_to_object([';','"','\'',')'],true),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=Object.create(null),token,tokens,var_mode,warnings,crlfx=/\r\n?|\n/,cx=/[\u0000-\u0008\u000a-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/,ix=/^([a-zA-Z_$][a-zA-Z0-9_$]*)$/,jx=/^(?:javascript|jscript|ecmascript|vbscript)\s*:/i,lx=/\*\/|\/\*/,nx=/[\u0000-\u001f'\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,syx=/Sync$/,tox=/^\W*to\s*do(?:\W|$)/i,tx=/^\s*([(){}\[\]\?.,:;'"~#@`]|={1,3}|\/(\*(jslint|properties|property|members?|globals?)?|=|\/)?|\*[\/=]?|\+(?:=|\++)?|-(?:=|-+)?|[\^%]=?|&[&=]?|\|[|=]?|>{1,3}=?|<(?:[\/=!]|\!(\[|--)?|<=?)?|\!(\!|==?)?|[a-zA-Z_$][a-zA-Z0-9_$]*|[0-9]+(?:[xX][0-9a-fA-F]+|\.[0-9]*)?(?:[eE][+\-]?[0-9]+)?)/;if(typeof String.prototype.entityify!=='function'){String.prototype.entityify=function(){return this.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){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.browser){add_to_predefined(browser);option.browser=false;} if(option.closure){add_to_predefined(closure);} if(option.couch){add_to_predefined(couch);option.couch=false;option.es5=true;} if(option.devel){add_to_predefined(devel);option.devel=false;} if(option.node){add_to_predefined(node);option.node=false;option.es5=true;node_js=true;} if(option.rhino){add_to_predefined(rhino);option.rhino=false;}} function artifact(tok){if(!tok){tok=next_token;} return tok.id==='(number)'?tok.number:tok.string;} function quit(message,line,character){throw{name:'JSLintError',line:line,character:character,message:bundle.scanned_a_b.supplant({a:bundle[message]||message,b:Math.floor((line/lines.length)*100)})};} function warn(code,line,character,a,b,c,d){var warning={id:'(error)',raw:bundle[code]||code,code:code,evidence:lines[line-1]||'',line:line,character:character,a:a||artifact(this),b:b,c:c,d:d};warning.reason=warning.raw.supplant(warning);itself.errors.push(warning);if(option.passfail){quit('stopping',line,character);} warnings+=1;if(warnings>=option.maxerr){quit('too_many',line,character);} return warning;} function stop(code,line,character,a,b,c,d){var warning=warn(code,line,character,a,b,c,d);quit('stopping',warning.line,warning.character);} function expected_at(at){if(!option.white&&next_token.from!==at){next_token.warn('expected_a_at_b_c','',at,next_token.from);}} lex=(function lex(){var character,c,from,length,line,pos,source_row;function next_line(){var at;character=1;source_row=lines[line];line+=1;if(source_row===undefined){return false;} at=source_row.search(/\t/);if(at>=0){if(option.white){source_row=source_row.replace(/\t/g,' ');}else{warn('use_spaces',line,at+1);}} at=source_row.search(cx);if(at>=0){warn('unsafe',line,at);} if(option.maxlen&&option.maxlen'.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;} for(;;){if(!source_row){if(!option.white){warn('unexpected_char_a',line,character-1,'(space)');} return;} c=source_row.charAt(0);if(c!==' '){break;} source_row=source_row.slice(1);character+=1;} stop('unexpected_char_a',line,character,c);} 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('unexpected_a',line,character,'\\');} character+=n;c=String.fromCharCode(i);} if(json_mode&&x!=='"'){warn('expected_a_b',line,character,'"',x);} for(;;){while(pos>=source_row.length){pos=0;if(!next_line()){stop('unclosed',line-1,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('control_a',line,character+pos,source_row.slice(0,pos));}else if(c==='\\'){pos+=1;character+=1;c=source_row.charAt(pos);switch(c){case'':if(!option.es5){warn('es5',line,character);} next_line();pos=-1;break;case'\'':if(json_mode){warn('unexpected_a',line,character,'\\\'');} break;case'u':hex(4);break;case'v':if(json_mode){warn('unexpected_a',line,character,'\\v');} c='\v';break;case'x':if(json_mode){warn('unexpected_a',line,character,'\\x');} hex(2);break;default:if(typeof descapes[c]!=='string'){warn(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(source_row.charAt(0).isAlpha()){warn('expected_space_a_b',line,character,c,source_row.charAt(0));} if(c==='0'){digit=snippet.charAt(1);if(digit.isDigit()){if(token.id!=='.'){warn('unexpected_a',line,character,snippet);}}else if(json_mode&&(digit==='x'||digit==='X')){warn('unexpected_a',line,character,'0x');}} if(snippet.slice(snippet.length-1)==='.'){warn('trailing_decimal_a',line,character,snippet);} digit=+snippet;if(!isFinite(digit)){warn('bad_number',line,character,snippet);} snippet=digit;return it('(number)',snippet);} function comment(snippet,type){if(comments_off){warn('unexpected_comment',line,character);}else if(!option.todo&&tox.test(snippet)){warn('todo_comment',line,character);} comments.push({id:type,from:from,thru:character,line:line,string:snippet});} function regexp(){var b,bit,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('unclosed_regexp',line,from);return;case'/':if(depth>0){warn('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('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('confusing_regexp',line,from);} result=it('(regexp)',c);result.flag=flag;return result;case'\\':c=source_row.charAt(length);if(c<' '){warn('control_a',line,from+length,String(c));}else if(c==='<'){warn('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('expected_a_b',line,from+length,':',source_row.charAt(length));}} break;case'|':b=false;break;case')':if(depth===0){warn('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('use_braces',line,from+length,pos);} break;case'[':c=source_row.charAt(length);if(c==='^'){length+=1;if(!option.regexp){warn('insecure_a',line,from+length,c);}else if(source_row.charAt(length)===']'){stop('unescaped_a',line,from+length,'^');}} bit=false;if(c===']'){warn('empty_class',line,from+length-1);bit=true;} klass:do{c=source_row.charAt(length);length+=1;switch(c){case'[':case'^':warn('unescaped_a',line,from+length,c);bit=true;break;case'-':if(bit){bit=false;}else{warn('unescaped_a',line,from+length,'-');bit=true;} break;case']':if(!bit){warn('unescaped_a',line,from+length-1,'-');} break klass;case'\\':c=source_row.charAt(length);if(c<' '){warn('control_a',line,from+length,String(c));}else if(c==='<'){warn('unexpected_a',line,from+length,'\\');} length+=1;bit=true;break;case'/':warn('unescaped_a',line,from+length-1,'/');bit=true;break;default:bit=true;}}while(c);break;case'.':if(!option.regexp){warn('insecure_a',line,from+length,c);} break;case']':case'?':case'{':case'}':case'+':case'*':warn('unescaped_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('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('expected_a_b',line,from+length,'}',c);}else{length+=1;} if(source_row.charAt(length)==='?'){length+=1;} if(low>high){warn('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);} return{init:function(source){if(typeof source==='string'){lines=source.split(crlfx);}else{lines=source;} line=0;next_line();from=1;},token:function(){var c,i,snippet;for(;;){while(!source_row){if(!next_line()){return it('(end)');}} snippet=match(tx);if(snippet){c=snippet.charAt(0);if(c.isAlpha()||c==='_'||c==='$'){return it('(identifier)',snippet);} if(c.isDigit()){return number(snippet);} switch(snippet){case'"':case"'":return string(snippet);case'//':comment(source_row,'//');source_row='';break;case'/*':for(;;){i=source_row.search(lx);if(i>=0){break;} character=source_row.length;comment(source_row);from=0;if(!next_line()){stop('unclosed_comment',line,character);}} comment(source_row.slice(0,i),'/*');character+=i+2;if(source_row.charAt(i)==='/'){stop('nested_comment',line,character);} source_row=source_row.slice(i+2);break;case'':break;case'/':if(token.id==='/='){stop('slash_equal',line,from);} return prereg?regexp():it('(punctuator)',snippet);default:return it('(punctuator)',snippet);}}}}};}());function define(kind,token){var name=token.string,master=scope[name];token.dead=false;token.init=false;token.kind=kind;token.master=master;token.used=0;token.writeable=false;if(kind==='var'&&funct===global_funct){if(!master){if(predefined[name]===false){token.writeable=false;} global_scope[name]=token;}}else{if(master&&master.function===funct){if(master.kind!=='exception'||kind!=='exception'||!master.dead){token.warn('already_defined',name);}} scope[name]=token;if(kind==='var'){block_var.push(name);}}} function peek(distance){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){if(indent){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(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);}}else if(next_token.line!==token.line){if(next_token.fromallowed_option[name]||value<=0||Math.floor(value)!==value){next_token.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{next_token.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){next_token.warn('missing_space_a_b',artifact(token),artifact());} if(lookahead.length>0){this.warn('unexpected_a');} switch(command){case'/*properties':case'/*property':case'/*members':case'/*member':do_properties();break;case'/*jslint':do_jslint();break;case'/*globals':case'/*global':do_globals();break;default:this.stop('unexpected_a');} comments_off=old_comments_off;advance('*/');indent=old_indent;};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;}} 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)){right.warn('expected_space_a_b',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))){right.warn('expected_space_a_b',artifact(left),artifact(right));}} function no_space(left,right){left=left||token;right=right||next_token;if((!option.white)&&left.thru!==right.from&&left.line===right.line){right.warn('unexpected_space_a_b',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))){right.warn('unexpected_space_a_b',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){right.warn('missing_space_a_b',artifact(left),artifact(right));}}} function comma(){if(next_token.id!==','){warn('expected_a_b',token.line,token.thru,',',artifact());}else{if(!option.white){no_space_only();} advance(',');spaces();}} function semicolon(){if(next_token.id!==';'){warn('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){next_token.warn('unnecessary_use');} edge();advance();semicolon();strict_mode=true;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'&&c<='z')||(c>='A'&&c<='Z')){x.identifier=x.reserved=true;} return x;} function stmt(s,f){var x=symbol(s);x.fud=f;return reserve_name(x);} function disrupt_stmt(s,f){var x=stmt(s,f);x.disrupt=true;} function labeled_stmt(s,f){var x=stmt(s,f);x.labeled=true;} function prefix(s,f){var x=symbol(s,150);reserve_name(x);x.nud=function(){var that=this;that.arity='prefix';if(typeof f==='function'){that=f(that);if(that.arity!=='prefix'){return that;}}else{if(s==='typeof'){one_space();}else{no_space_only();} that.first=expression(150);} switch(that.id){case'++':case'--':if(!option.plusplus){that.warn('unexpected_a');}else if((!that.first.identifier||that.first.reserved)&&that.first.id!=='.'&&that.first.id!=='['){that.warn('bad_operand');} break;default:if(that.first.arity==='prefix'||that.first.arity==='function'){that.warn('unexpected_a');}} return that;};return x;} function type(s,t,nud){var x=symbol(s);x.arity=t;if(nud){x.nud=nud;} return x;} function reserve(s,f){var x=symbol(s);x.identifier=x.reserved=true;if(typeof f==='function'){x.nud=f;} return x;} function constant(name){var x=reserve(name);x.string=name;x.nud=return_this;return x;} function reservevar(s,v){return reserve(s,function(){if(typeof v==='function'){v(this);} return this;});} function infix(s,p,f,w){var x=symbol(s,p);reserve_name(x);x.led=function(left){this.arity='infix';if(!w){spaces(prev_token,token);spaces();} if(!option.bitwise&&this.bitwise){this.warn('unexpected_a');} 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){node.warn(message||'conditional_assignment');} return node;} function expected_condition(node,message){switch(node.id){case'[':case'-':if(node.arity!=='infix'){node.warn(message||'weird_condition');} break;case'false':case'function':case'Infinity':case'NaN':case'null':case'true':case'undefined':case'void':case'(number)':case'(regexp)':case'(string)':case'{':case'?':case'~':node.warn(message||'weird_condition');break;case'(':if(node.first.id==='new'||(node.first.string==='Boolean')||(node.first.id==='.'&&numbery[node.first.second.string]===true)){node.warn(message||'weird_condition');} break;} return node;} function check_relation(node){switch(node.arity){case'prefix':switch(node.id){case'{':case'[':node.warn('unexpected_a');break;case'!':node.warn('confusing_a');break;} break;case'function':case'regexp':node.warn('unexpected_a');break;default:if(node.id==='NaN'){node.warn('isNaN');}else if(node.relation){node.warn('weird_relation');}} return node;} function relation(s,eqeq){var x=infix(s,100,function(left,that){check_relation(left);if(eqeq&&!option.eqeq){that.warn('expected_a_b',eqeq,that.id);} var right=expression(100);if(are_similar(left,right)||((left.id==='(string)'||left.id==='(number)')&&(right.id==='(string)'||right.id==='(number)'))){that.warn('weird_relation');}else if(left.id==='typeof'){if(right.id!=='(string)'){right.warn("expected_string_a",artifact(right));}else if(right.string==='undefined'||right.string==='null'){left.warn("unexpected_typeof_a",right.string);}}else if(right.id==='typeof'){if(left.id!=='(string)'){left.warn("expected_string_a",artifact(left));}else if(left.string==='undefined'||left.string==='null'){right.warn("unexpected_typeof_a",left.string);}} that.first=left;that.second=check_relation(right);return that;});x.relation=true;return x;} function lvalue(that,s){var master;if(that.identifier){master=scope[that.string];if(master){if(scope[that.string].writeable!==true){that.warn('read_only');} master.used-=1;if(s==='='){master.init=true;}}}else if(that.id==='.'||that.id==='['){if(!that.first||that.first.string==='arguments'){that.warn('bad_assignment');}}else{that.warn('bad_assignment');}} function assignop(s,op){var x=infix(s,20,function(left,that){var next;that.first=left;lvalue(left,s);that.second=expression(20);if(that.id==='='&&are_similar(that.first,that.second)){that.warn('weird_assignment');} next=that;while(next_token.id==='='){lvalue(next.second,'=');next_token.first=next.second;next.second=next_token;next=next_token;advance('=');next.second=expression(20);} 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){this.warn('unexpected_a');}else if((!left.identifier||left.reserved)&&left.id!=='.'&&left.id!=='['){this.warn('bad_operand');} this.first=left;this.arity='suffix';return this;};return x;} function optional_identifier(variable){if(next_token.identifier){advance();if(token.reserved&&(!option.es5||variable)){token.warn('expected_identifier_a_reserved');} return token.string;}} function identifier(variable){var i=optional_identifier(variable);if(!i){next_token.stop(token.id==='function'&&next_token.id==='('?'name_function':'expected_identifier_a');} return i;} function statement(){var label,preamble,the_statement;if(next_token.id===';'){next_token.warn('unexpected_a');semicolon();return;} if(next_token.identifier&&!next_token.reserved&&peek().id===':'){edge('label');label=next_token;advance();advance(':');define('label',label);if(next_token.labeled!==true||funct===global_funct){label.stop('unexpected_label_a');}else if(jx.test(label.string+':')){label.warn('url');} next_token.label=label;label.init=true;} preamble=next_token;if(token.id!=='else'){edge();} step_in('statement');the_statement=expression(0,true);if(the_statement){if(the_statement.arity==='statement'){if(the_statement.id==='switch'||(the_statement.block&&the_statement.id!=='do')){spaces();}else{semicolon();}}else{if(the_statement.id==='('){if(the_statement.first.id==='new'){next_token.warn('bad_new');}}else if(the_statement.id==='++'||the_statement.id==='--'){lvalue(the_statement.first);}else if(!the_statement.assign&&the_statement.id!=='delete'){if(!option.closure||!preamble.comments){preamble.warn('assignment_function_expression');}} semicolon();}} step_out();if(label){label.dead=true;} return the_statement;} function statements(){var array=[],disruptor,the_statement;while(next_token.postscript!==true){if(next_token.id===';'){next_token.warn('unexpected_a');semicolon();}else{if(next_token.string==='use strict'){if((!node_js)||funct!==global_funct||array.length>0){next_token.warn('function_strict');} use_strict();} if(disruptor){next_token.warn('unreachable_a_b',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(kind){var array,curly=next_token,old_block_var=block_var,old_in_block=in_block,old_strict_mode=strict_mode;in_block=kind!=='function'&&kind!=='try'&&kind!=='catch';block_var=[];if(curly.id==='{'){spaces();advance('{');step_in();if(kind==='function'&&!use_strict()&&!old_strict_mode&&!option.sloppy&&funct.level===1){next_token.warn('missing_use_strict');} array=statements();strict_mode=old_strict_mode;step_out('}',curly);}else if(in_block){curly.stop('expected_a_b','{',artifact());}else{curly.warn('expected_a_b','{',artifact());array=[statement()];array.disrupt=array[0].disrupt;} if(kind!=='catch'&&array.length===0){curly.warn('empty_block');} block_var.forEach(function(name){scope[name].dead=true;});block_var=old_block_var;in_block=old_in_block;return array;} function tally_property(name){if(option.properties&&typeof property[name]!=='number'){token.warn('unexpected_property_a',name);} if(property[name]){property[name]+=1;}else{property[name]=1;}} (function(){var x=symbol('(identifier)');x.nud=function(){var name=this.string,master=scope[name],writeable;if(!master){writeable=predefined[name];if(typeof writeable==='boolean'){global_scope[name]=master={dead:false,function:global_funct,kind:'var',string:name,writeable:writeable};}else{token.warn('used_before_a');}}else{this.master=master;} if(master){if(master.kind==='label'){this.warn('a_label');}else{if(master.dead===true||master.dead===funct){this.warn('a_scope');} master.used+=1;if(master.function!==funct){if(master.function===global_funct){funct.global.push(name);}else{master.function.closure.push(name);funct.outer.push(name);}}}} return this;};x.identifier=true;}());type('(array)','array');type('(function)','function');type('(number)','number',return_this);type('(object)','object');type('(string)','string',return_this);type('(boolean)','boolean',return_this);type('(regexp)','regexp',return_this);ultimate('(begin)');ultimate('(end)');ultimate('(error)');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){x.warn('strict');} funct.arguments=true;});reservevar('eval');constant('false','boolean');constant('Infinity','number');constant('NaN','number');constant('null','');reservevar('this',function(x){if(strict_mode&&funct.statement&&funct.name.charAt(0)>'Z'){x.warn('strict');}});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)){colon.warn('weird_ternary');}else if(are_similar(that.first,that.second)){that.warn('use_or');} step_out();return that;});infix('||',40,function(left,that){function paren_check(that){if(that.id==='&&'&&!that.paren){that.warn('and');} 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)){that.warn('weird_condition');} 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)){that.warn('weird_condition');} return that;});prefix('void',function(that){that.first=expression(0);if(option.es5||strict_mode){that.warn('expected_a_b','undefined','void');}else if(that.first.number!==0){that.first.warn('expected_a_b','0',artifact(that.first));} return that;});bitwise('|',70);bitwise('^',80);bitwise('&',90);relation('==','===');relation('===');relation('!=','!==');relation('!==');relation('<');relation('>');relation('<=');relation('>=');bitwise('<<',120);bitwise('>>',120);bitwise('>>>',120);infix('in',120,function(left,that){that.warn('infix_in');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){left.warn('unexpected_a','0');}}else if(left.id==='(string)'){if(left.string===''){left.warn('expected_a_b','String','\'\'');}} var right=expression(130);if(right.id==='(number)'){if(right.number===0){right.warn('unexpected_a','0');}}else if(right.id==='(string)'){if(right.string===''){right.warn('expected_a_b','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)){left.warn('url');}}else{left.number+=right.number;} left.thru=right.thru;return left;}} that.first=left;that.second=right;return that;});prefix('+');prefix('+++',function(){token.warn('confusing_a');this.first=expression(150);this.arity='prefix';return this;});infix('+++',130,function(left){token.warn('confusing_a');this.first=left;this.second=expression(130);return this;});infix('-',130,function(left,that){if((left.id==='(number)'&&left.number===0)||left.id==='(string)'){left.warn('unexpected_a');} var right=expression(130);if((right.id==='(number)'&&right.number===0)||right.id==='(string)'){right.warn('unexpected_a');} 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(){token.warn('confusing_a');this.first=expression(150);this.arity='prefix';return this;});infix('---',130,function(left){token.warn('confusing_a');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)'){left.warn('unexpected_a');} var right=expression(140);if((right.id==='(number)'&&(right.number===0||right.number===1))||right.id==='(string)'){right.warn('unexpected_a');} 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)'){left.warn('unexpected_a');} var right=expression(140);if((right.id==='(number)'&&(right.number===0||right.number===1))||right.id==='(string)'){right.warn('unexpected_a');} 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)'){left.warn('unexpected_a');} var right=expression(140);if((right.id==='(number)'&&right.number===0)||right.id==='(string)'){right.warn('unexpected_a');} if(left.id===right.id&&left.id==='(number)'){left.number%=right.number;left.thru=right.thru;return left;} that.first=left;that.second=right;return that;});suffix('++');prefix('++');suffix('--');prefix('--');prefix('delete',function(that){one_space();var p=expression(0);if(!p||(p.id!=='.'&&p.id!=='[')){next_token.warn('deleted');} that.first=p;return that;});prefix('~',function(that){no_space_only();if(!option.bitwise){that.warn('unexpected_a');} that.first=expression(150);return that;});function banger(that){no_space_only();that.first=expected_condition(expression(150));if(bang[that.first.id]===that||that.first.assign){that.warn('confusing_a');} return that;} prefix('!',banger);prefix('!!',banger);prefix('typeof');prefix('new',function(that){one_space();var c=expression(160),n,p,v;that.first=c;if(c.id!=='function'){if(c.identifier){switch(c.string){case'Object':token.warn('use_object');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===','){p.warn('use_array');} while(next_token.id===','){advance(',');p.second.push(expression(0));}}else{token.warn('use_array');} advance(')',p);return p;} token.warn('use_array');break;case'Number':case'String':case'Boolean':case'Math':case'JSON':c.warn('not_a_constructor');break;case'Function':if(!option.evil){next_token.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')){token.warn('constructor_name_a');}}}}else{if(c.id!=='.'&&c.id!=='['&&c.id!=='('){token.warn('bad_constructor');}}}else{that.warn('weird_new');} if(next_token.id!=='('){next_token.warn('missing_a','()');} return that;});infix('(',160,function(left,that){var e,p;if(indent&&indent.mode==='expression'){no_space(prev_token,token);}else{no_space_only(prev_token,token);} if(!left.immed&&left.id==='function'){next_token.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'){left.warn('not_a_function');}else if(left.string==='Object'){token.warn('use_object');}else if(left.string==='Array'||!option.newcap){left.warn('missing_a','new');}}}}else if(left.id==='.'){if(left.second.string==='split'&&left.first.id==='(string)'){left.second.warn('use_array');}} step_in();if(next_token.id!==')'){no_space();for(;;){edge();e=expression(10);if(left.string==='Boolean'&&(e.id==='!'||e.id==='~')){e.warn('weird_condition');} p.push(e);if(next_token.id!==','){break;} comma();}} no_space();step_out(')',that);if(typeof left==='object'){if(left.string==='parseInt'&&p.length===1){left.warn('radix');}else if(left.string==='String'&&p.length>=1&&p[0].id==='(string)'){left.warn('unexpected_a');} if(!option.evil){if(left.string==='eval'||left.string==='Function'||left.string==='execScript'){left.warn('evil');}else if(p[0]&&p[0].id==='(string)'&&(left.string==='setTimeout'||left.string==='setInterval')){left.warn('implied_evil');}} if(!left.identifier&&left.id!=='.'&&left.id!=='['&&left.id!=='('&&left.id!=='&&'&&left.id!=='||'&&left.id!=='?'){left.warn('bad_invocation');} if(left.id==='.'){if(p.length>0&&left.first&&left.first.first&&are_similar(p[0],left.first.first)){if(left.second.string==='call'||(left.second.string==='apply'&&(p.length===1||(p[1].arity==='prefix'&&p[1].id==='[')))){left.second.warn('unexpected_a');}} if(left.second.string==='toString'){if(left.first.id==='(string)'||left.first.id==='(number)'){left.second.warn('unexpected_a');}}}} that.first=left;that.second=p;return that;},true);prefix('(',function(that){step_in('expression');no_space();edge();if(next_token.id==='function'){next_token.immed=true;} var value=expression(0);value.paren=true;no_space();step_out(')',that);if(value.id==='function'){switch(next_token.id){case'(':next_token.warn('move_invocation');break;case'.':case'[':next_token.warn('unexpected_a');break;default:that.warn('bad_wrap');}}else if(!value.arity){if(!option.closure||!that.comments){that.warn('unexpected_a');}} 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')){left.warn('avoid_a','arguments.'+name);}else if(!option.evil&&left&&left.string==='document'&&(name==='write'||name==='writeln')){left.warn('write_is_wrong');}else if(!option.stupid&&syx.test(name)){token.warn('sync_a');} if(!option.evil&&(name==='eval'||name==='execScript')){next_token.warn('evil');} 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'){left.warn('use_param',left);} break;case'(string)':if(!option.evil&&(e.string==='eval'||e.string==='execScript')){e.warn('evil');}else if(!option.sub&&ix.test(e.string)){s=syntax[e.string];if(!s||!s.reserved){e.warn('subscript');}} tally_property(e.string);break;} step_out(']',that);no_space(prev_token,token);that.first=left;that.second=e;return that;},true);prefix('[',function(that){that.first=[];step_in('array');while(next_token.id!=='(end)'){while(next_token.id===','){next_token.warn('unexpected_a');advance(',');} if(next_token.id===']'){break;} indent.wrap=false;edge();that.first.push(expression(10));if(next_token.id===','){comma();if(next_token.id===']'&&!option.es5){token.warn('unexpected_a');break;}}else{break;}} step_out(']',that);return that;},170);function property_name(){var id=optional_identifier();if(!id){if(next_token.id==='(string)'){id=next_token.string;advance();}else if(next_token.id==='(number)'){id=next_token.number.toString();advance();}} return id;} assignop('=');assignop('+=','+');assignop('-=','-');assignop('*=','*');assignop('/=','/').nud=function(){next_token.stop('slash_equal');};assignop('%=','%');assignop('&=','&');assignop('|=','|');assignop('^=','^');assignop('<<=','<<');assignop('>>=','>>');assignop('>>>=','>>>');function function_parameters(){var id,parameters=[],paren=next_token;advance('(');token.function=funct;step_in();no_space();if(next_token.id!==')'){for(;;){edge();id=identifier();define('parameter',token);parameters.push(id);token.init=true;token.writeable=true;if(next_token.id!==','){break;} comma();}} no_space();step_out(')',paren);return parameters;} function do_function(func,name){var old_funct=funct,old_option=option,old_scope=scope;scope=Object.create(old_scope);funct={closure:[],global:[],level:old_funct.level+1,line:next_token.line,loopage:0,name:name||'\''+(anonname||'').replace(nx,sanitize)+'\'',outer:[],scope:scope};funct.parameter=function_parameters();func.function=funct;option=Object.create(old_option);functions.push(funct);if(name){func.name=name;func.string=name;define('function',func);func.init=true;func.used+=1;} func.writeable=false;one_space();func.block=block('function');Object.keys(scope).forEach(function(name){var master=scope[name];if(!master.used&&master.kind!=='exception'&&(master.kind!=='parameter'||!option.unparam)){master.warn('unused_a');}else if(!master.init){master.warn('uninitialized_a');}});funct=old_funct;option=old_option;scope=old_scope;} prefix('{',function(that){var get,i,j,name,p,set,seen=Object.create(null);that.first=[];step_in();while(next_token.id!=='}'){indent.wrap=false;edge();if(next_token.string==='get'&&peek().id!==':'){if(!option.es5){next_token.warn('es5');} get=next_token;advance('get');one_space_only();name=next_token;i=property_name();if(!i){next_token.stop('missing_property');} get.string='';do_function(get);if(funct.loopage){get.warn('function_loop');} p=get.first;if(p&&p.length){p[0].warn('parameter_a_get_b',p[0].string,i);} comma();set=next_token;spaces();edge();advance('set');set.string='';one_space_only();j=property_name();if(i!==j){token.stop('expected_a_b',i,j||next_token.string);} do_function(set);if(set.block.length===0){token.warn('missing_a','throw');} p=set.first;if(!p||p.length!==1){set.stop('parameter_set_a','value');}else if(p[0].string!=='value'){p[0].stop('expected_a_b','value',p[0].string);} name.first=[get,set];}else{name=next_token;i=property_name();if(typeof i!=='string'){next_token.stop('missing_property');} advance(':');spaces();name.first=expression(10);} that.first.push(name);if(seen[i]===true){next_token.warn('duplicate_a',i);} seen[i]=true;tally_property(i);if(next_token.id!==','){break;} for(;;){comma();if(next_token.id!==','){break;} next_token.warn('unexpected_a');} if(next_token.id==='}'&&!option.es5){token.warn('unexpected_a');}} step_out('}',that);return that;});stmt('{',function(){next_token.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(){var assign,id,name;if(funct.loopage){next_token.warn('var_loop');}else if(funct.varstatement&&!option.vars){next_token.warn('combine_var');} if(funct!==global_funct){funct.varstatement=true;} this.arity='statement';this.first=[];step_in('var');for(;;){name=next_token;id=identifier(true);define('var',name);name.dead=funct;if(next_token.id==='='){assign=next_token;assign.first=name;spaces();advance('=');spaces();if(next_token.id==='undefined'){token.warn('unnecessary_initialize',id);} if(peek(0).id==='='&&next_token.identifier){next_token.stop('var_a_not');} assign.second=expression(0);assign.arity='infix';name.init=true;this.first.push(assign);}else{this.first.push(name);} name.dead=false;name.writeable=true;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){token.warn('function_block');} var name=next_token,id=identifier(true);define('var',name);name.init=true;name.statement=true;no_space();this.arity='statement';do_function(this,id);if(next_token.id==='('&&next_token.line===token.line){next_token.stop('function_statement');} return this;});prefix('function',function(that){var id=optional_identifier(true),name;if(id){name=token;no_space();}else{id='';} do_function(that,id);if(name){name.function=that.function;} if(funct.loopage){that.warn('function_loop');} switch(next_token.id){case';':case'(':case')':case',':case']':case'}':case':':break;case'.':if(peek().string!=='bind'||peek(1).id!=='('){next_token.warn('unexpected_a');} break;default:next_token.stop('unexpected_a');} that.arity='function';return that;});stmt('if',function(){var paren=next_token;one_space();advance('(');step_in('control');no_space();edge();this.arity='statement';this.first=expected_condition(expected_relation(expression(0)));no_space();step_out(')',paren);one_space();this.block=block('if');if(next_token.id==='else'){if(this.block.disrupt){next_token.warn('unnecessary_else');} one_space();advance('else');one_space();this.else=next_token.id==='if'||next_token.id==='switch'?statement(true):block('else');if(this.else.disrupt&&this.block.disrupt){this.disrupt=true;}} return this;});stmt('try',function(){var exception_variable,paren;one_space();this.arity='statement';this.block=block('try');if(next_token.id==='catch'){one_space();advance('catch');one_space();paren=next_token;advance('(');step_in('control');no_space();edge();exception_variable=next_token;this.first=identifier();define('exception',exception_variable);exception_variable.init=true;no_space();step_out(')',paren);one_space();this.second=block('catch');if(this.second.length){if(this.first==='ignore'){exception_variable.warn('unexpected_a');}}else{if(this.first!=='ignore'){exception_variable.warn('expected_a_b','ignore',exception_variable.string);}} exception_variable.dead=true;} if(next_token.id==='finally'){one_space();advance('finally');one_space();this.third=block('finally');}else if(!this.second){next_token.stop('expected_a_b','catch',artifact());} return this;});labeled_stmt('while',function(){one_space();var paren=next_token;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,'unexpected_a');} no_space();step_out(')',paren);one_space();this.block=block('while');if(this.block.disrupt){prev_token.warn('strange_loop');} funct.loopage-=1;return this;});reserve('with');labeled_stmt('switch',function(){var cases=[],old_in_block=in_block,particular,that=token,the_case=next_token,unbroken=true;function find_duplicate_case(value){if(are_similar(particular,value)){value.warn('duplicate_a');}} one_space();advance('(');no_space();step_in();this.arity='statement';this.first=expected_condition(expected_relation(expression(0)));no_space();step_out(')',the_case);one_space();advance('{');step_in();in_block=true;this.second=[];if(that.from!==next_token.from&&!option.white){next_token.warn('expected_a_at_b_c',next_token.string,that.from,next_token.from);} while(next_token.id==='case'){the_case=next_token;cases.forEach(find_duplicate_case);the_case.first=[];the_case.arity='case';spaces();edge('case');advance('case');for(;;){one_space();particular=expression(0);cases.forEach(find_duplicate_case);cases.push(particular);the_case.first.push(particular);if(particular.id==='NaN'){particular.warn('unexpected_a');} 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{next_token.warn('missing_a_after_b','break','case');}}else{next_token.warn('empty_case');} this.second.push(the_case);} if(this.second.length===0){next_token.warn('missing_a','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);} spaces();step_out('}',this);in_block=old_in_block;return this;});stmt('debugger',function(){if(!option.debug){this.warn('unexpected_a');} this.arity='statement';return this;});labeled_stmt('do',function(){funct.loopage+=1;one_space();this.arity='statement';this.block=block('do');if(this.block.disrupt){prev_token.warn('strange_loop');} one_space();advance('while');var paren=next_token;one_space();advance('(');step_in();no_space();edge();this.first=expected_condition(expected_relation(expression(0)),'unexpected_a');no_space();step_out(')',paren);funct.loopage-=1;return this;});labeled_stmt('for',function(){var blok,filter,master,ok=false,paren=next_token,value;this.arity='statement';funct.loopage+=1;advance('(');if(next_token.id===';'){no_space();advance(';');no_space();advance(';');no_space();advance(')');blok=block('for');}else{step_in('control');spaces(this,paren);no_space();if(next_token.id==='var'){next_token.stop('move_var');} edge();if(peek(0).id==='in'){this.forin=true;value=expression(1000);master=value.master;if(master.kind!=='var'||master.function!==funct||!master.writeable||master.dead){value.warn('bad_in_a');} master.init=true;master.used-=1;this.first=value;advance('in');this.second=expression(20);step_out(')',paren);blok=block('for');if(!option.forin){if(blok.length===1&&typeof blok[0]==='object'){if(blok[0].id==='if'&&!blok[0].else){filter=blok[0].first;while(filter.id==='&&'){filter=filter.first;} switch(filter.id){case'===':case'!==':ok=filter.first.id==='['?are_similar(filter.first.first,this.second)&&are_similar(filter.first.second,this.first):filter.first.id==='typeof'&&filter.first.first.id==='['&&are_similar(filter.first.first.first,this.second)&&are_similar(filter.first.first.second,this.first);break;case'(':ok=filter.first.id==='.'&&((are_similar(filter.first.first,this.second)&&filter.first.second.string==='hasOwnProperty'&&are_similar(filter.second[0],this.first))||(filter.first.first.id==='.'&&filter.first.first.first.first.string==='Object'&&filter.first.first.first.id==='.'&&filter.first.first.first.second.string==='prototype'&&filter.first.first.second.string==='hasOwnProperty'&&filter.first.second.string==='call'&&are_similar(filter.second[0],this.second)&&are_similar(filter.second[1],this.first)));break;}}else if(blok[0].id==='switch'){ok=blok[0].id==='switch'&&blok[0].first.id==='typeof'&&blok[0].first.first.id==='['&&are_similar(blok[0].first.first.first,this.second)&&are_similar(blok[0].first.first.second,this.first);}} if(!ok){this.warn('for_if');}}}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,'unexpected_a');} semicolon(token);if(next_token.id===';'){next_token.stop('expected_a_b',')',';');} 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('for');}} if(blok.disrupt){prev_token.warn('strange_loop');} this.block=blok;funct.loopage-=1;return this;});function optional_label(that){var label=next_token.string,master;that.arity='statement';if(next_token.identifier&&token.line===next_token.line){one_space_only();master=scope[label];if(!master||master.kind!=='label'){next_token.warn('not_a_label');}else if(master.dead||master.function!==funct){next_token.warn('not_a_scope');}else{master.used+=1;} that.first=next_token;advance();} return that;} disrupt_stmt('break',function(){return optional_label(this);});disrupt_stmt('continue',function(){if(!option.continue){this.warn('unexpected_a');} return optional_label(this);});disrupt_stmt('return',function(){if(funct===global_funct){this.warn('unexpected_a');} this.arity='statement';if(next_token.id!==';'&&next_token.line===token.line){if(option.closure){spaces();}else{one_space_only();} if(next_token.id==='/'||next_token.id==='(regexp)'){next_token.warn('wrap_regexp');} this.first=expression(0);if(this.first.assign){this.first.warn('unexpected_a');}} return this;});disrupt_stmt('throw',function(){this.arity='statement';one_space_only();this.first=expression(20);return this;});reserve('class');reserve('const');reserve('enum');reserve('export');reserve('extends');reserve('import');reserve('super');reserve('implements');reserve('interface');reserve('let');reserve('package');reserve('private');reserve('protected');reserve('public');reserve('static');reserve('yield');function json_value(){function json_object(){var brace=next_token,object=Object.create(null);advance('{');if(next_token.id!=='}'){while(next_token.id!=='(end)'){while(next_token.id===','){next_token.warn('unexpected_a');advance(',');} if(next_token.id!=='(string)'){next_token.warn('expected_string_a');} if(object[next_token.string]===true){next_token.warn('duplicate_a');}else if(next_token.string==='__proto__'){next_token.warn('dangling_a');}else{object[next_token.string]=true;} advance();advance(':');json_value();if(next_token.id!==','){break;} advance(',');if(next_token.id==='}'){token.warn('unexpected_a');break;}}} advance('}',brace);} function json_array(){var bracket=next_token;advance('[');if(next_token.id!==']'){while(next_token.id!=='(end)'){while(next_token.id===','){next_token.warn('unexpected_a');advance(',');} json_value();if(next_token.id!==','){break;} advance(',');if(next_token.id===']'){token.warn('unexpected_a');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:next_token.stop('unexpected_a');}} itself=function JSLint(the_source,the_option){var i,predef,tree;itself.errors=[];itself.tree='';itself.properties='';begin=prev_token=token=next_token=Object.create(syntax['(begin)']);tokens=[];predefined=Object.create(null);add_to_predefined(standard);property=Object.create(null);if(the_option){option=Object.create(the_option);predef=option.predef;if(predef){if(Array.isArray(predef)){for(i=0;iJSON: bad.
');} for(i=0;i');if(isFinite(warning.line)){output.push('
line '+ String(warning.line)+' character '+String(warning.character)+'
');} output.push(warning.reason.entityify()+'');if(evidence){output.push('
'+evidence.entityify()+'
');}}}} return output.join('');};itself.report=function(data){var dl,i,j,names,output=[],the_function;function detail(h,array){var comma_needed=false;if(array.length){output.push("
"+h+"
");array.forEach(function(item){output.push((comma_needed?', ':'')+item);comma_needed=true;});output.push("
");}} output.push('
');if(data.global.length){detail('global',data.global);dl=true;}else if(data.json){if(!data.errors.length){output.push("
JSON: good.
");}}else{output.push("
No new global variables introduced.
");} if(dl){output.push("
");}else{output[0]='';} if(data.functions){for(i=0;i
line '+String(the_function.line)+'
'+the_function.name.entityify()+'('+ names.join(', ')+')');detail('parameter',the_function.parameter);detail('variable',the_function.var);detail('exception',the_function.exception);detail('closure',the_function.closure);detail('outer',the_function.outer);detail('global',the_function.global);detail('label',the_function.label);output.push('');}} return output.join('');};itself.properties_report=function(property){if(!property){return'';} var i,key,keys=Object.keys(property).sort(),mem=' ',name,not_first=false,output=['/*properties'];for(i=0;i0){if(not_first){mem+=', ';} name=ix.test(key)?key:'\''+key.replace(nx,sanitize)+'\'';if(mem.length+name.length>=80){output.push(mem);mem=' ';} mem+=name;not_first=true;}} output.push(mem,'*/\n');return output.join('\n');};itself.color=function(data){var from,i=1,level,line,result=[],thru,token=data.tokens[0];while(token&&token.id!=='(end)'){from=token.from;line=token.line;thru=token.thru;level=token.function.level;do{thru=token.thru;token=data.tokens[i];i+=1;}while(token&&token.line===line&&token.from-thru<5&&level===token.function.level);result.push({line:line,level:level,from:from,thru:thru});} return result;};itself.jslint=itself;itself.edition='2013-05-31';return itself;}());