[narval] update copy of jslint (closes #4016718)
authorJulien Cristau <julien.cristau@logilab.fr>
Thu, 19 Jun 2014 10:24:24 +0200
changeset 1535 5e672938c1dc
parent 1534 b22c01912961
child 1537 712d8843b929
[narval] update copy of jslint (closes #4016718) Downloaded from https://raw.githubusercontent.com/douglascrockford/JSLint/master/jslint.js Update debian/copyright.
_narval/data/jslint.js
debian/copyright
--- a/_narval/data/jslint.js	Thu Jun 19 10:16:50 2014 +0200
+++ b/_narval/data/jslint.js	Thu Jun 19 10:24:24 2014 +0200
@@ -1,536 +1,4278 @@
-// (C)2002 Douglas Crockford
-// www.JSLint.com
-// Rhino Edition
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-l+=1;q=true;break;case'/':warningAt("Unescaped '{a}'.",line,from+l-1,'/');q=true;break;case'<':if(xmode==='script'){c=s.charAt(l);if(c==='!'||c==='/'){warningAt("HTML confusion in regular expression '<{a}'.",line,from+l,c);}}
-q=true;break;default:q=true;}}while(c);break;case'.':if(option.regexp){warningAt("Insecure '{a}'.",line,from+l,c);}
-break;case']':case'?':case'{':case'}':case'+':case'*':warningAt("Unescaped '{a}'.",line,from+l,c);break;case'<':if(xmode==='script'){c=s.charAt(l);if(c==='!'||c==='/'){warningAt("HTML confusion in regular expression '<{a}'.",line,from+l,c);}}}
-if(b){switch(s.charAt(l)){case'?':case'+':case'*':l+=1;if(s.charAt(l)==='?'){l+=1;}
-break;case'{':l+=1;c=s.charAt(l);if(c<'0'||c>'9'){warningAt("Expected a number and instead saw '{a}'.",line,from+l,c);}
-l+=1;low=+c;for(;;){c=s.charAt(l);if(c<'0'||c>'9'){break;}
-l+=1;low=+c+(low*10);}
-high=low;if(c===','){l+=1;high=Infinity;c=s.charAt(l);if(c>='0'&&c<='9'){l+=1;high=+c;for(;;){c=s.charAt(l);if(c<'0'||c>'9'){break;}
-l+=1;high=+c+(high*10);}}}
-if(s.charAt(l)!=='}'){warningAt("Expected '{a}' and instead saw '{b}'.",line,from+l,'}',c);}else{l+=1;}
-if(s.charAt(l)==='?'){l+=1;}
-if(low>high){warningAt("'{a}' should not be greater than '{b}'.",line,from+l,low,high);}}}}
-c=s.substr(0,l-1);character+=l;s=s.substr(l);return it('(regexp)',c);}
-return it('(punctuator)',t);case'<!--':l=line;c=character;for(;;){i=s.indexOf('--');if(i>=0){break;}
-i=s.indexOf('<!');if(i>=0){errorAt("Nested HTML comment.",line,character+i);}
-if(!nextLine()){errorAt("Unclosed HTML comment.",l,c);}}
-l=s.indexOf('<!');if(l>=0&&l<i){errorAt("Nested HTML comment.",line,character+l);}
-character+=i;if(s[i+2]!=='>'){errorAt("Expected -->.",line,character);}
-character+=3;s=s.slice(i+3);break;case'#':if(xmode==='html'||xmode==='styleproperty'){for(;;){c=s.charAt(0);if((c<'0'||c>'9')&&(c<'a'||c>'f')&&(c<'A'||c>'F')){break;}
-character+=1;s=s.substr(1);t+=c;}
-if(t.length!==4&&t.length!==7){warningAt("Bad hex color '{a}'.",line,from+l,t);}
-return it('(color)',t);}
-return it('(punctuator)',t);default:if(xmode==='outer'&&c==='&'){character+=1;s=s.substr(1);for(;;){c=s.charAt(0);character+=1;s=s.substr(1);if(c===';'){break;}
-if(!((c>='0'&&c<='9')||(c>='a'&&c<='z')||c==='#')){errorAt("Bad entity",line,from+l,character);}}
-break;}
-return it('(punctuator)',t);}}}}};}());function addlabel(t,type){if(option.safe&&funct['(global)']&&typeof predefined[t]!=='boolean'){warning('ADsafe global: '+t+'.',token);}else if(t==='hasOwnProperty'){warning("'hasOwnProperty' is a really bad name.");}
-if(is_own(funct,t)&&!funct['(global)']){warning(funct[t]===true?"'{a}' was used before it was defined.":"'{a}' is already defined.",nexttoken,t);}
-funct[t]=type;if(funct['(global)']){global[t]=funct;if(is_own(implied,t)){warning("'{a}' was used before it was defined.",nexttoken,t);delete implied[t];}}else{scope[t]=funct;}}
-function doOption(){var b,obj,filter,o=nexttoken.value,t,v;switch(o){case'*/':error("Unbegun comment.");break;case'/*members':case'/*member':o='/*members';if(!membersOnly){membersOnly={};}
-obj=membersOnly;break;case'/*jslint':if(option.safe){warning("ADsafe restriction.");}
-obj=option;filter=boolOptions;break;case'/*global':if(option.safe){warning("ADsafe restriction.");}
-obj=predefined;break;default:}
-t=lex.token();loop:for(;;){for(;;){if(t.type==='special'&&t.value==='*/'){break loop;}
-if(t.id!=='(endline)'&&t.id!==','){break;}
-t=lex.token();}
-if(t.type!=='(string)'&&t.type!=='(identifier)'&&o!=='/*members'){error("Bad option.",t);}
-v=lex.token();if(v.id===':'){v=lex.token();if(obj===membersOnly){error("Expected '{a}' and instead saw '{b}'.",t,'*/',':');}
-if(t.value==='indent'&&o==='/*jslint'){b=+v.value;if(typeof b!=='number'||!isFinite(b)||b<=0||Math.floor(b)!==b){error("Expected a small integer and instead saw '{a}'.",v,v.value);}
-obj.white=true;obj.indent=b;}else if(t.value==='maxerr'&&o==='/*jslint'){b=+v.value;if(typeof b!=='number'||!isFinite(b)||b<=0||Math.floor(b)!==b){error("Expected a small integer and instead saw '{a}'.",v,v.value);}
-obj.maxerr=b;}else if(t.value==='maxlen'&&o==='/*jslint'){b=+v.value;if(typeof b!=='number'||!isFinite(b)||b<=0||Math.floor(b)!==b){error("Expected a small integer and instead saw '{a}'.",v,v.value);}
-obj.maxlen=b;}else if(v.value==='true'){obj[t.value]=true;}else if(v.value==='false'){obj[t.value]=false;}else{error("Bad option value.",v);}
-t=lex.token();}else{if(o==='/*jslint'){error("Missing option value.",t);}
-obj[t.value]=false;t=v;}}
-if(filter){assume();}}
-function peek(p){var i=p||0,j=0,t;while(j<=i){t=lookahead[j];if(!t){t=lookahead[j]=lex.token();}
-j+=1;}
-return t;}
-function advance(id,t){switch(token.id){case'(number)':if(nexttoken.id==='.'){warning("A dot following a number can be confused with a decimal point.",token);}
-break;case'-':if(nexttoken.id==='-'||nexttoken.id==='--'){warning("Confusing minusses.");}
-break;case'+':if(nexttoken.id==='+'||nexttoken.id==='++'){warning("Confusing plusses.");}
-break;}
-if(token.type==='(string)'||token.identifier){anonname=token.value;}
-if(id&&nexttoken.id!==id){if(t){if(nexttoken.id==='(end)'){warning("Unmatched '{a}'.",t,t.id);}else{warning("Expected '{a}' to match '{b}' from line {c} and instead saw '{d}'.",nexttoken,id,t.id,t.line,nexttoken.value);}}else if(nexttoken.type!=='(identifier)'||nexttoken.value!==id){warning("Expected '{a}' and instead saw '{b}'.",nexttoken,id,nexttoken.value);}}
-prevtoken=token;token=nexttoken;for(;;){nexttoken=lookahead.shift()||lex.token();if(nexttoken.id==='(end)'||nexttoken.id==='(error)'){return;}
-if(nexttoken.type==='special'){doOption();}else{if(nexttoken.id!=='(endline)'){break;}}}}
-function parse(rbp,initial){var left;if(nexttoken.id==='(end)'){error("Unexpected early end of program.",token);}
-advance();if(option.safe&&typeof predefined[token.value]==='boolean'&&(nexttoken.id!=='('&&nexttoken.id!=='.')){warning('ADsafe violation.',token);}
-if(initial){anonname='anonymous';funct['(verb)']=token.value;}
-if(initial===true&&token.fud){left=token.fud();}else{if(token.nud){left=token.nud();}else{if(nexttoken.type==='(number)'&&token.id==='.'){warning("A leading decimal point can be confused with a dot: '.{a}'.",token,nexttoken.value);advance();return token;}else{error("Expected an identifier and instead saw '{a}'.",token,token.id);}}
-while(rbp<nexttoken.lbp){advance();if(token.led){left=token.led(left);}else{error("Expected an operator and instead saw '{a}'.",token,token.id);}}}
-return left;}
-function adjacent(left,right){left=left||token;right=right||nexttoken;if(option.white||xmode==='styleproperty'||xmode==='style'){if(left.character!==right.from&&left.line===right.line){warning("Unexpected space after '{a}'.",right,left.value);}}}
-function nospace(left,right){left=left||token;right=right||nexttoken;if(option.white&&!left.comment){if(left.line===right.line){adjacent(left,right);}}}
-function nonadjacent(left,right){if(option.white){left=left||token;right=right||nexttoken;if(left.line===right.line&&left.character===right.from){warning("Missing space after '{a}'.",nexttoken,left.value);}}}
-function nobreaknonadjacent(left,right){left=left||token;right=right||nexttoken;if(!option.laxbreak&&left.line!==right.line){warning("Bad line breaking before '{a}'.",right,right.id);}else if(option.white){left=left||token;right=right||nexttoken;if(left.character===right.from){warning("Missing space after '{a}'.",nexttoken,left.value);}}}
-function indentation(bias){var i;if(option.white&&nexttoken.id!=='(end)'){i=indent+(bias||0);if(nexttoken.from!==i){warning("Expected '{a}' to have an indentation at {b} instead at {c}.",nexttoken,nexttoken.value,i,nexttoken.from);}}}
-function nolinebreak(t){t=t||token;if(t.line!==nexttoken.line){warning("Line breaking error '{a}'.",t,t.value);}}
-function comma(){if(token.line!==nexttoken.line){if(!option.laxbreak){warning("Bad line breaking before '{a}'.",token,nexttoken.id);}}else if(token.character!==nexttoken.from&&option.white){warning("Unexpected space after '{a}'.",nexttoken,token.value);}
-advance(',');nonadjacent(token,nexttoken);}
-function symbol(s,p){var x=syntax[s];if(!x||typeof x!=='object'){syntax[s]=x={id:s,lbp:p,value:s};}
-return x;}
-function delim(s){return symbol(s,0);}
-function stmt(s,f){var x=delim(s);x.identifier=x.reserved=true;x.fud=f;return x;}
-function blockstmt(s,f){var x=stmt(s,f);x.block=true;return x;}
-function reserveName(x){var c=x.id.charAt(0);if((c>='a'&&c<='z')||(c>='A'&&c<='Z')){x.identifier=x.reserved=true;}
-return x;}
-function prefix(s,f){var x=symbol(s,150);reserveName(x);x.nud=(typeof f==='function')?f:function(){this.right=parse(150);this.arity='unary';if(this.id==='++'||this.id==='--'){if(option.plusplus){warning("Unexpected use of '{a}'.",this,this.id);}else if((!this.right.identifier||this.right.reserved)&&this.right.id!=='.'&&this.right.id!=='['){warning("Bad operand.",this);}}
-return this;};return x;}
-function type(s,f){var x=delim(s);x.type=s;x.nud=f;return x;}
-function reserve(s,f){var x=type(s,f);x.identifier=x.reserved=true;return x;}
-function reservevar(s,v){return reserve(s,function(){if(this.id==='this'||this.id==='arguments'||this.id==='eval'){if(strict_mode&&funct['(global)']){warning("Strict violation.",this);}else if(option.safe){warning("ADsafe violation.",this);}}
-return this;});}
-function infix(s,f,p,w){var x=symbol(s,p);reserveName(x);x.led=function(left){if(!w){nobreaknonadjacent(prevtoken,token);nonadjacent(token,nexttoken);}
-if(typeof f==='function'){return f(left,this);}else{this.left=left;this.right=parse(p);return this;}};return x;}
-function relation(s,f){var x=symbol(s,100);x.led=function(left){nobreaknonadjacent(prevtoken,token);nonadjacent(token,nexttoken);var right=parse(100);if((left&&left.id==='NaN')||(right&&right.id==='NaN')){warning("Use the isNaN function to compare with NaN.",this);}else if(f){f.apply(this,[left,right]);}
-if(left.id==='!'){warning("Confusing use of '{a}'.",left,'!');}
-if(right.id==='!'){warning("Confusing use of '{a}'.",left,'!');}
-this.left=left;this.right=right;return this;};return x;}
-function isPoorRelation(node){return node&&((node.type==='(number)'&&+node.value===0)||(node.type==='(string)'&&node.value===' ')||node.type==='true'||node.type==='false'||node.type==='undefined'||node.type==='null');}
-function assignop(s,f){symbol(s,20).exps=true;return infix(s,function(left,that){var l;that.left=left;if(predefined[left.value]===false&&scope[left.value]['(global)']===true){warning('Read only.',left);}
-if(option.safe){l=left;do{if(typeof predefined[l.value]==='boolean'){warning('ADsafe violation.',l);}
-l=l.left;}while(l);}
-if(left){if(left.id==='.'||left.id==='['){if(!left.left||left.left.value==='arguments'){warning('Bad assignment.',that);}
-that.right=parse(19);return that;}else if(left.identifier&&!left.reserved){if(funct[left.value]==='exception'){warning("Do not assign to the exception parameter.",left);}
-that.right=parse(19);return that;}
-if(left===syntax['function']){warning("Expected an identifier in an assignment and instead saw a function invocation.",token);}}
-error("Bad assignment.",that);},20);}
-function bitwise(s,f,p){var x=symbol(s,p);reserveName(x);x.led=(typeof f==='function')?f:function(left){if(option.bitwise){warning("Unexpected use of '{a}'.",this,this.id);}
-this.left=left;this.right=parse(p);return this;};return x;}
-function bitwiseassignop(s){symbol(s,20).exps=true;return infix(s,function(left,that){if(option.bitwise){warning("Unexpected use of '{a}'.",that,that.id);}
-nonadjacent(prevtoken,token);nonadjacent(token,nexttoken);if(left){if(left.id==='.'||left.id==='['||(left.identifier&&!left.reserved)){parse(19);return that;}
-if(left===syntax['function']){warning("Expected an identifier in an assignment, and instead saw a function invocation.",token);}
-return that;}
-error("Bad assignment.",that);},20);}
-function suffix(s,f){var x=symbol(s,150);x.led=function(left){if(option.plusplus){warning("Unexpected use of '{a}'.",this,this.id);}else if((!left.identifier||left.reserved)&&left.id!=='.'&&left.id!=='['){warning("Bad operand.",this);}
-this.left=left;return this;};return x;}
-function optionalidentifier(){if(nexttoken.identifier){advance();if(option.safe&&banned[token.value]){warning("ADsafe violation: '{a}'.",token,token.value);}else if(token.reserved&&!option.es5){warning("Expected an identifier and instead saw '{a}' (a reserved word).",token,token.id);}
-return token.value;}}
-function identifier(){var i=optionalidentifier();if(i){return i;}
-if(token.id==='function'&&nexttoken.id==='('){warning("Missing name in function statement.");}else{error("Expected an identifier and instead saw '{a}'.",nexttoken,nexttoken.value);}}
-function reachable(s){var i=0,t;if(nexttoken.id!==';'||noreach){return;}
-for(;;){t=peek(i);if(t.reach){return;}
-if(t.id!=='(endline)'){if(t.id==='function'){warning("Inner functions should be listed at the top of the outer function.",t);break;}
-warning("Unreachable '{a}' after '{b}'.",t,t.value,s);break;}
-i+=1;}}
-function statement(noindent){var i=indent,r,s=scope,t=nexttoken;if(t.id===';'){warning("Unnecessary semicolon.",t);advance(';');return;}
-if(t.identifier&&!t.reserved&&peek().id===':'){advance();advance(':');scope=Object.create(s);addlabel(t.value,'label');if(!nexttoken.labelled){warning("Label '{a}' on {b} statement.",nexttoken,t.value,nexttoken.value);}
-if(jx.test(t.value+':')){warning("Label '{a}' looks like a javascript url.",t,t.value);}
-nexttoken.label=t.value;t=nexttoken;}
-if(!noindent){indentation();}
-r=parse(0,true);if(!t.block){if(!r||!r.exps){warning("Expected an assignment or function call and instead saw an expression.",token);}else if(r.id==='('&&r.left.id==='new'){warning("Do not use 'new' for side effects.");}
-if(nexttoken.id!==';'){warningAt("Missing semicolon.",token.line,token.from+token.value.length);}else{adjacent(token,nexttoken);advance(';');nonadjacent(token,nexttoken);}}
-indent=i;scope=s;return r;}
-function use_strict(){if(nexttoken.value==='use strict'){advance();advance(';');strict_mode=true;return true;}else{return false;}}
-function statements(begin){var a=[],f,p;if(begin&&!use_strict()&&option.strict){warning('Missing "use strict" statement.',nexttoken);}
-if(option.adsafe){switch(begin){case'script':if(!adsafe_may){if(nexttoken.value!=='ADSAFE'||peek(0).id!=='.'||(peek(1).value!=='id'&&peek(1).value!=='go')){error('ADsafe violation: Missing ADSAFE.id or ADSAFE.go.',nexttoken);}}
-if(nexttoken.value==='ADSAFE'&&peek(0).id==='.'&&peek(1).value==='id'){if(adsafe_may){error('ADsafe violation.',nexttoken);}
-advance('ADSAFE');advance('.');advance('id');advance('(');if(nexttoken.value!==adsafe_id){error('ADsafe violation: id does not match.',nexttoken);}
-advance('(string)');advance(')');advance(';');adsafe_may=true;}
-break;case'lib':if(nexttoken.value==='ADSAFE'){advance('ADSAFE');advance('.');advance('lib');advance('(');advance('(string)');comma();f=parse(0);if(f.id!=='function'){error('The second argument to lib must be a function.',f);}
-p=f.funct['(params)'];p=p&&p.join(', ');if(p&&p!=='lib'){error("Expected '{a}' and instead saw '{b}'.",f,'(lib)','('+p+')');}
-advance(')');advance(';');return a;}else{error("ADsafe lib violation.");}}}
-while(!nexttoken.reach&&nexttoken.id!=='(end)'){if(nexttoken.id===';'){warning("Unnecessary semicolon.");advance(';');}else{a.push(statement());}}
-return a;}
-function block(f){var a,b=inblock,old_indent=indent,s=scope,t;inblock=f;scope=Object.create(scope);nonadjacent(token,nexttoken);t=nexttoken;if(nexttoken.id==='{'){advance('{');if(nexttoken.id!=='}'||token.line!==nexttoken.line){indent+=option.indent;while(!f&&nexttoken.from>indent){indent+=option.indent;}
-if(!f){use_strict();}
-a=statements();indent-=option.indent;indentation();}
-advance('}',t);indent=old_indent;}else{warning("Expected '{a}' and instead saw '{b}'.",nexttoken,'{',nexttoken.value);noreach=true;a=[statement()];noreach=false;}
-funct['(verb)']=null;scope=s;inblock=b;return a;}
-function idValue(){return this;}
-function countMember(m){if(membersOnly&&typeof membersOnly[m]!=='boolean'){warning("Unexpected /*member '{a}'.",token,m);}
-if(typeof member[m]==='number'){member[m]+=1;}else{member[m]=1;}}
-function note_implied(token){var name=token.value,line=token.line,a=implied[name];if(typeof a==='function'){a=false;}
-if(!a){a=[line];implied[name]=a;}else if(a[a.length-1]!==line){a.push(line);}}
-function cssName(){if(nexttoken.identifier){advance();return true;}}
-function cssNumber(){if(nexttoken.id==='-'){advance('-');adjacent();nolinebreak();}
-if(nexttoken.type==='(number)'){advance('(number)');return true;}}
-function cssString(){if(nexttoken.type==='(string)'){advance();return true;}}
-function cssColor(){var i,number,value;if(nexttoken.identifier){value=nexttoken.value;if(value==='rgb'||value==='rgba'){advance();advance('(');for(i=0;i<3;i+=1){if(i){advance(',');}
-number=nexttoken.value;if(nexttoken.type!=='(number)'||number<0){warning("Expected a positive number and instead saw '{a}'",nexttoken,number);advance();}else{advance();if(nexttoken.id==='%'){advance('%');if(number>100){warning("Expected a percentage and instead saw '{a}'",token,number);}}else{if(number>255){warning("Expected a small number and instead saw '{a}'",token,number);}}}}
-if(value==='rgba'){advance(',');number=+nexttoken.value;if(nexttoken.type!=='(number)'||number<0||number>1){warning("Expected a number between 0 and 1 and instead saw '{a}'",nexttoken,number);}
-advance();if(nexttoken.id==='%'){warning("Unexpected '%'.");advance('%');}}
-advance(')');return true;}else if(cssColorData[nexttoken.value]===true){advance();return true;}}else if(nexttoken.type==='(color)'){advance();return true;}
-return false;}
-function cssLength(){if(nexttoken.id==='-'){advance('-');adjacent();nolinebreak();}
-if(nexttoken.type==='(number)'){advance();if(nexttoken.type!=='(string)'&&cssLengthData[nexttoken.value]===true){adjacent();advance();}else if(+token.value!==0){warning("Expected a linear unit and instead saw '{a}'.",nexttoken,nexttoken.value);}
-return true;}
-return false;}
-function cssLineHeight(){if(nexttoken.id==='-'){advance('-');adjacent();}
-if(nexttoken.type==='(number)'){advance();if(nexttoken.type!=='(string)'&&cssLengthData[nexttoken.value]===true){adjacent();advance();}
-return true;}
-return false;}
-function cssWidth(){if(nexttoken.identifier){switch(nexttoken.value){case'thin':case'medium':case'thick':advance();return true;}}else{return cssLength();}}
-function cssMargin(){if(nexttoken.identifier){if(nexttoken.value==='auto'){advance();return true;}}else{return cssLength();}}
-function cssAttr(){if(nexttoken.identifier&&nexttoken.value==='attr'){advance();advance('(');if(!nexttoken.identifier){warning("Expected a name and instead saw '{a}'.",nexttoken,nexttoken.value);}
-advance();advance(')');return true;}
-return false;}
-function cssCommaList(){while(nexttoken.id!==';'){if(!cssName()&&!cssString()){warning("Expected a name and instead saw '{a}'.",nexttoken,nexttoken.value);}
-if(nexttoken.id!==','){return true;}
-comma();}}
-function cssCounter(){if(nexttoken.identifier&&nexttoken.value==='counter'){advance();advance('(');if(!nexttoken.identifier){}
-advance();if(nexttoken.id===','){comma();if(nexttoken.type!=='(string)'){warning("Expected a string and instead saw '{a}'.",nexttoken,nexttoken.value);}
-advance();}
-advance(')');return true;}
-if(nexttoken.identifier&&nexttoken.value==='counters'){advance();advance('(');if(!nexttoken.identifier){warning("Expected a name and instead saw '{a}'.",nexttoken,nexttoken.value);}
-advance();if(nexttoken.id===','){comma();if(nexttoken.type!=='(string)'){warning("Expected a string and instead saw '{a}'.",nexttoken,nexttoken.value);}
-advance();}
-if(nexttoken.id===','){comma();if(nexttoken.type!=='(string)'){warning("Expected a string and instead saw '{a}'.",nexttoken,nexttoken.value);}
-advance();}
-advance(')');return true;}
-return false;}
-function cssShape(){var i;if(nexttoken.identifier&&nexttoken.value==='rect'){advance();advance('(');for(i=0;i<4;i+=1){if(!cssLength()){warning("Expected a number and instead saw '{a}'.",nexttoken,nexttoken.value);break;}}
-advance(')');return true;}
-return false;}
-function cssUrl(){var c,url;if(nexttoken.identifier&&nexttoken.value==='url'){nexttoken=lex.range('(',')');url=nexttoken.value;c=url.charAt(0);if(c==='"'||c==='\''){if(url.slice(-1)!==c){warning("Bad url string.");}else{url=url.slice(1,-1);if(url.indexOf(c)>=0){warning("Bad url string.");}}}
-if(!url){warning("Missing url.");}
-advance();if(option.safe&&ux.test(url)){error("ADsafe URL violation.");}
-urls.push(url);return true;}
-return false;}
-cssAny=[cssUrl,function(){for(;;){if(nexttoken.identifier){switch(nexttoken.value.toLowerCase()){case'url':cssUrl();break;case'expression':warning("Unexpected expression '{a}'.",nexttoken,nexttoken.value);advance();break;default:advance();}}else{if(nexttoken.id===';'||nexttoken.id==='!'||nexttoken.id==='(end)'||nexttoken.id==='}'){return true;}
-advance();}}}];cssBorderStyle=['none','hidden','dotted','dashed','solid','double','ridge','inset','outset'];cssBreak=['auto','always','avoid','left','right'];cssOverflow=['auto','hidden','scroll','visible'];cssAttributeData={background:[true,'background-attachment','background-color','background-image','background-position','background-repeat'],'background-attachment':['scroll','fixed'],'background-color':['transparent',cssColor],'background-image':['none',cssUrl],'background-position':[2,[cssLength,'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':cssColor,'border-bottom-style':cssBorderStyle,'border-bottom-width':cssWidth,'border-collapse':['collapse','separate'],'border-color':['transparent',4,cssColor],'border-left':[true,'border-left-color','border-left-style','border-left-width'],'border-left-color':cssColor,'border-left-style':cssBorderStyle,'border-left-width':cssWidth,'border-right':[true,'border-right-color','border-right-style','border-right-width'],'border-right-color':cssColor,'border-right-style':cssBorderStyle,'border-right-width':cssWidth,'border-spacing':[2,cssLength],'border-style':[4,cssBorderStyle],'border-top':[true,'border-top-color','border-top-style','border-top-width'],'border-top-color':cssColor,'border-top-style':cssBorderStyle,'border-top-width':cssWidth,'border-width':[4,cssWidth],bottom:[cssLength,'auto'],'caption-side':['bottom','left','right','top'],clear:['both','left','none','right'],clip:[cssShape,'auto'],color:cssColor,content:['open-quote','close-quote','no-open-quote','no-close-quote',cssString,cssUrl,cssCounter,cssAttr],'counter-increment':[cssName,'none'],'counter-reset':[cssName,'none'],cursor:[cssUrl,'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':cssCommaList,'font-size':['xx-small','x-small','small','medium','large','x-large','xx-large','larger','smaller',cssLength],'font-size-adjust':['none',cssNumber],'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',cssNumber],height:[cssLength,'auto'],left:[cssLength,'auto'],'letter-spacing':['normal',cssLength],'line-height':['normal',cssLineHeight],'list-style':[true,'list-style-image','list-style-position','list-style-type'],'list-style-image':['none',cssUrl],'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,cssMargin],'margin-bottom':cssMargin,'margin-left':cssMargin,'margin-right':cssMargin,'margin-top':cssMargin,'marker-offset':[cssLength,'auto'],'max-height':[cssLength,'none'],'max-width':[cssLength,'none'],'min-height':cssLength,'min-width':cssLength,opacity:cssNumber,outline:[true,'outline-color','outline-style','outline-width'],'outline-color':['invert',cssColor],'outline-style':['dashed','dotted','double','groove','inset','none','outset','ridge','solid'],'outline-width':cssWidth,overflow:cssOverflow,'overflow-x':cssOverflow,'overflow-y':cssOverflow,padding:[4,cssLength],'padding-bottom':cssLength,'padding-left':cssLength,'padding-right':cssLength,'padding-top':cssLength,'page-break-after':cssBreak,'page-break-before':cssBreak,position:['absolute','fixed','relative','static'],quotes:[8,cssString],right:[cssLength,'auto'],'table-layout':['auto','fixed'],'text-align':['center','justify','left','right'],'text-decoration':['none','underline','overline','line-through','blink'],'text-indent':cssLength,'text-shadow':['none',4,[cssColor,cssLength]],'text-transform':['capitalize','uppercase','lowercase','none'],top:[cssLength,'auto'],'unicode-bidi':['normal','embed','bidi-override'],'vertical-align':['baseline','bottom','sub','super','top','text-top','middle','text-bottom',cssLength],visibility:['visible','hidden','collapse'],'white-space':['normal','nowrap','pre','pre-line','pre-wrap','inherit'],width:[cssLength,'auto'],'word-spacing':['normal',cssLength],'word-wrap':['break-word','normal'],'z-index':['auto',cssNumber]};function styleAttribute(){var v;while(nexttoken.id==='*'||nexttoken.id==='#'||nexttoken.value==='_'){if(!option.css){warning("Unexpected '{a}'.",nexttoken,nexttoken.value);}
-advance();}
-if(nexttoken.id==='-'){if(!option.css){warning("Unexpected '{a}'.",nexttoken,nexttoken.value);}
-advance('-');if(!nexttoken.identifier){warning("Expected a non-standard style attribute and instead saw '{a}'.",nexttoken,nexttoken.value);}
-advance();return cssAny;}else{if(!nexttoken.identifier){warning("Excepted a style attribute, and instead saw '{a}'.",nexttoken,nexttoken.value);}else{if(is_own(cssAttributeData,nexttoken.value)){v=cssAttributeData[nexttoken.value];}else{v=cssAny;if(!option.css){warning("Unrecognized style attribute '{a}'.",nexttoken,nexttoken.value);}}}
-advance();return v;}}
-function styleValue(v){var i=0,n,once,match,round,start=0,vi;switch(typeof v){case'function':return v();case'string':if(nexttoken.identifier&&nexttoken.value===v){advance();return true;}
-return false;}
-for(;;){if(i>=v.length){return false;}
-vi=v[i];i+=1;if(vi===true){break;}else if(typeof vi==='number'){n=vi;vi=v[i];i+=1;}else{n=1;}
-match=false;while(n>0){if(styleValue(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(styleValue(cssAttributeData[v[i]])){match=true;round=true;once[i]=true;break;}}}
-if(!round){return match;}}}
-function styleChild(){if(nexttoken.id==='(number)'){advance();if(nexttoken.value==='n'&&nexttoken.identifier){adjacent();advance();if(nexttoken.id==='+'){adjacent();advance('+');adjacent();advance('(number)');}}
-return;}else{switch(nexttoken.value){case'odd':case'even':if(nexttoken.identifier){advance();return;}}}
-warning("Unexpected token '{a}'.",nexttoken,nexttoken.value);}
-function substyle(){var v;for(;;){if(nexttoken.id==='}'||nexttoken.id==='(end)'||xquote&&nexttoken.id===xquote){return;}
-while(nexttoken.id===';'){warning("Misplaced ';'.");advance(';');}
-v=styleAttribute();advance(':');if(nexttoken.identifier&&nexttoken.value==='inherit'){advance();}else{if(!styleValue(v)){warning("Unexpected token '{a}'.",nexttoken,nexttoken.value);advance();}}
-if(nexttoken.id==='!'){advance('!');adjacent();if(nexttoken.identifier&&nexttoken.value==='important'){advance();}else{warning("Expected '{a}' and instead saw '{b}'.",nexttoken,'important',nexttoken.value);}}
-if(nexttoken.id==='}'||nexttoken.id===xquote){warning("Missing '{a}'.",nexttoken,';');}else{advance(';');}}}
-function styleSelector(){if(nexttoken.identifier){if(!is_own(htmltag,nexttoken.value)){warning("Expected a tagName, and instead saw {a}.",nexttoken,nexttoken.value);}
-advance();}else{switch(nexttoken.id){case'>':case'+':advance();styleSelector();break;case':':advance(':');switch(nexttoken.value){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-of-type':case'link':case'only-of-type':case'root':case'target':case'visited':advance();break;case'lang':advance();advance('(');if(!nexttoken.identifier){warning("Expected a lang code, and instead saw :{a}.",nexttoken,nexttoken.value);}
-advance(')');break;case'nth-child':case'nth-last-child':case'nth-last-of-type':case'nth-of-type':advance();advance('(');styleChild();advance(')');break;case'not':advance();advance('(');if(nexttoken.id===':'&&peek(0).value==='not'){warning("Nested not.");}
-styleSelector();advance(')');break;default:warning("Expected a pseudo, and instead saw :{a}.",nexttoken,nexttoken.value);}
-break;case'#':advance('#');if(!nexttoken.identifier){warning("Expected an id, and instead saw #{a}.",nexttoken,nexttoken.value);}
-advance();break;case'*':advance('*');break;case'.':advance('.');if(!nexttoken.identifier){warning("Expected a class, and instead saw #.{a}.",nexttoken,nexttoken.value);}
-advance();break;case'[':advance('[');if(!nexttoken.identifier){warning("Expected an attribute, and instead saw [{a}].",nexttoken,nexttoken.value);}
-advance();if(nexttoken.id==='='||nexttoken.value==='~='||nexttoken.value==='$='||nexttoken.value==='|='||nexttoken.id==='*='||nexttoken.id==='^='){advance();if(nexttoken.type!=='(string)'){warning("Expected a string, and instead saw {a}.",nexttoken,nexttoken.value);}
-advance();}
-advance(']');break;default:error("Expected a CSS selector, and instead saw {a}.",nexttoken,nexttoken.value);}}}
-function stylePattern(){var name;if(nexttoken.id==='{'){warning("Expected a style pattern, and instead saw '{a}'.",nexttoken,nexttoken.id);}else if(nexttoken.id==='@'){advance('@');name=nexttoken.value;if(nexttoken.identifier&&atrule[name]===true){advance();return name;}
-warning("Expected an at-rule, and instead saw @{a}.",nexttoken,name);}
-for(;;){styleSelector();if(nexttoken.id==='</'||nexttoken.id==='{'||nexttoken.id==='(end)'){return'';}
-if(nexttoken.id===','){comma();}}}
-function styles(){var i;while(nexttoken.id==='@'){i=peek();if(i.identifier&&i.value==='import'){advance('@');advance();if(!cssUrl()){warning("Expected '{a}' and instead saw '{b}'.",nexttoken,'url',nexttoken.value);advance();}
-advance(';');}else{break;}}
-while(nexttoken.id!=='</'&&nexttoken.id!=='(end)'){stylePattern();xmode='styleproperty';if(nexttoken.id===';'){advance(';');}else{advance('{');substyle();xmode='style';advance('}');}}}
-function doBegin(n){if(n!=='html'&&!option.fragment){if(n==='div'&&option.adsafe){error("ADSAFE: Use the fragment option.");}else{error("Expected '{a}' and instead saw '{b}'.",token,'html',n);}}
-if(option.adsafe){if(n==='html'){error("Currently, ADsafe does not operate on whole HTML documents. It operates on <div> fragments and .js files.",token);}
-if(option.fragment){if(n!=='div'){error("ADsafe violation: Wrap the widget in a div.",token);}}else{error("Use the fragment option.",token);}}
-option.browser=true;assume();}
-function doAttribute(n,a,v){var u,x;if(a==='id'){u=typeof v==='string'?v.toUpperCase():'';if(ids[u]===true){warning("Duplicate id='{a}'.",nexttoken,v);}
-if(!/^[A-Za-z][A-Za-z0-9._:\-]*$/.test(v)){warning("Bad id: '{a}'.",nexttoken,v);}else if(option.adsafe){if(adsafe_id){if(v.slice(0,adsafe_id.length)!==adsafe_id){warning("ADsafe violation: An id must have a '{a}' prefix",nexttoken,adsafe_id);}else if(!/^[A-Z]+_[A-Z]+$/.test(v)){warning("ADSAFE violation: bad id.");}}else{adsafe_id=v;if(!/^[A-Z]+_$/.test(v)){warning("ADSAFE violation: bad id.");}}}
-x=v.search(dx);if(x>=0){warning("Unexpected character '{a}' in {b}.",token,v.charAt(x),a);}
-ids[u]=true;}else if(a==='class'||a==='type'||a==='name'){x=v.search(qx);if(x>=0){warning("Unexpected character '{a}' in {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)){error("ADsafe URL violation.");}
-urls.push(v);}else if(a==='for'){if(option.adsafe){if(adsafe_id){if(v.slice(0,adsafe_id.length)!==adsafe_id){warning("ADsafe violation: An id must have a '{a}' prefix",nexttoken,adsafe_id);}else if(!/^[A-Z]+_[A-Z]+$/.test(v)){warning("ADSAFE violation: bad id.");}}else{warning("ADSAFE violation: bad id.");}}}else if(a==='name'){if(option.adsafe&&v.indexOf('_')>=0){warning("ADsafe name violation.");}}}
-function doTag(n,a){var i,t=htmltag[n],x;src=false;if(!t){error("Unrecognized tag '<{a}>'.",nexttoken,n===n.toLowerCase()?n:n+' (capitalization error)');}
-if(stack.length>0){if(n==='html'){error("Too many <html> tags.",token);}
-x=t.parent;if(x){if(x.indexOf(' '+stack[stack.length-1].name+' ')<0){error("A '<{a}>' must be within '<{b}>'.",token,n,x);}}else if(!option.adsafe&&!option.fragment){i=stack.length;do{if(i<=0){error("A '<{a}>' must be within '<{b}>'.",token,n,'body');}
-i-=1;}while(stack[i].name!=='body');}}
-switch(n){case'div':if(option.adsafe&&stack.length===1&&!adsafe_id){warning("ADSAFE violation: missing ID_.");}
-break;case'script':xmode='script';advance('>');indent=nexttoken.from;if(a.lang){warning("lang is deprecated.",token);}
-if(option.adsafe&&stack.length!==1){warning("ADsafe script placement violation.",token);}
-if(a.src){if(option.adsafe&&(!adsafe_may||!approved[a.src])){warning("ADsafe unapproved script source.",token);}
-if(a.type){warning("type is unnecessary.",token);}}else{if(adsafe_went){error("ADsafe script violation.",token);}
-statements('script');}
-xmode='html';advance('</');if(!nexttoken.identifier&&nexttoken.value!=='script'){warning("Expected '{a}' and instead saw '{b}'.",nexttoken,'script',nexttoken.value);}
-advance();xmode='outer';break;case'style':xmode='style';advance('>');styles();xmode='html';advance('</');if(!nexttoken.identifier&&nexttoken.value!=='style'){warning("Expected '{a}' and instead saw '{b}'.",nexttoken,'style',nexttoken.value);}
-advance();xmode='outer';break;case'input':switch(a.type){case'radio':case'checkbox':case'button':case'reset':case'submit':break;case'text':case'file':case'password':case'file':case'hidden':case'image':if(option.adsafe&&a.autocomplete!=='off'){warning("ADsafe autocomplete violation.");}
-break;default:warning("Bad input 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){warning("ADsafe violation: Disallowed tag: "+n);}
-break;}}
-function closetag(n){return'</'+n+'>';}
-function html(){var a,attributes,e,n,q,t,v,w=option.white,wmode;xmode='html';xquote='';stack=null;for(;;){switch(nexttoken.value){case'<':xmode='html';advance('<');attributes={};t=nexttoken;if(!t.identifier){warning("Bad identifier {a}.",t,t.value);}
-n=t.value;if(option.cap){n=n.toLowerCase();}
-t.name=n;advance();if(!stack){stack=[];doBegin(n);}
-v=htmltag[n];if(typeof v!=='object'){error("Unrecognized tag '<{a}>'.",t,n);}
-e=v.empty;t.type=n;for(;;){if(nexttoken.id==='/'){advance('/');if(nexttoken.id!=='>'){warning("Expected '{a}' and instead saw '{b}'.",nexttoken,'>',nexttoken.value);}
-break;}
-if(nexttoken.id&&nexttoken.id.substr(0,1)==='>'){break;}
-if(!nexttoken.identifier){if(nexttoken.id==='(end)'||nexttoken.id==='(error)'){error("Missing '>'.",nexttoken);}
-warning("Bad identifier.");}
-option.white=true;nonadjacent(token,nexttoken);a=nexttoken.value;option.white=w;advance();if(!option.cap&&a!==a.toLowerCase()){warning("Attribute '{a}' not all lower case.",nexttoken,a);}
-a=a.toLowerCase();xquote='';if(is_own(attributes,a)){warning("Attribute '{a}' repeated.",nexttoken,a);}
-if(a.slice(0,2)==='on'){if(!option.on){warning("Avoid HTML event handlers.");}
-xmode='scriptstring';advance('=');q=nexttoken.id;if(q!=='"'&&q!=="'"){error("Missing quote.");}
-xquote=q;wmode=option.white;option.white=false;advance(q);statements('on');option.white=wmode;if(nexttoken.id!==q){error("Missing close quote on script attribute.");}
-xmode='html';xquote='';advance(q);v=false;}else if(a==='style'){xmode='scriptstring';advance('=');q=nexttoken.id;if(q!=='"'&&q!=="'"){error("Missing quote.");}
-xmode='styleproperty';xquote=q;advance(q);substyle();xmode='html';xquote='';advance(q);v=false;}else{if(nexttoken.id==='='){advance('=');v=nexttoken.value;if(!nexttoken.identifier&&nexttoken.id!=='"'&&nexttoken.id!=='\''&&nexttoken.type!=='(string)'&&nexttoken.type!=='(number)'&&nexttoken.type!=='(color)'){warning("Expected an attribute value and instead saw '{a}'.",token,a);}
-advance();}else{v=true;}}
-attributes[a]=v;doAttribute(n,a,v);}
-doTag(n,attributes);if(!e){stack.push(t);}
-xmode='outer';advance('>');break;case'</':xmode='html';advance('</');if(!nexttoken.identifier){warning("Bad identifier.");}
-n=nexttoken.value;if(option.cap){n=n.toLowerCase();}
-advance();if(!stack){error("Unexpected '{a}'.",nexttoken,closetag(n));}
-t=stack.pop();if(!t){error("Unexpected '{a}'.",nexttoken,closetag(n));}
-if(t.name!==n){error("Expected '{a}' and instead saw '{b}'.",nexttoken,closetag(t.name),closetag(n));}
-if(nexttoken.id!=='>'){error("Missing '{a}'.",nexttoken,'>');}
-xmode='outer';advance('>');break;case'<!':if(option.safe){warning("ADsafe HTML violation.");}
-xmode='html';for(;;){advance();if(nexttoken.id==='>'||nexttoken.id==='(end)'){break;}
-if(nexttoken.value.indexOf('--')>=0){warning("Unexpected --.");}
-if(nexttoken.value.indexOf('<')>=0){warning("Unexpected <.");}
-if(nexttoken.value.indexOf('>')>=0){warning("Unexpected >.");}}
-xmode='outer';advance('>');break;case'(end)':return;default:if(nexttoken.id==='(end)'){error("Missing '{a}'.",nexttoken,'</'+stack[stack.length-1].value+'>');}else{advance();}}
-if(stack&&stack.length===0&&(option.adsafe||!option.fragment||nexttoken.id==='(end)')){break;}}
-if(nexttoken.id!=='(end)'){error("Unexpected material after the end.");}}
-type('(number)',idValue);type('(string)',idValue);syntax['(identifier)']={type:'(identifier)',lbp:0,identifier:true,nud:function(){var v=this.value,s=scope[v],f;if(typeof s==='function'){s=undefined;}else if(typeof s==='boolean'){f=funct;funct=functions[0];addlabel(v,'var');s=funct;funct=f;}
-if(funct===s){switch(funct[v]){case'unused':funct[v]='var';break;case'label':warning("'{a}' is a statement label.",token,v);break;}}else if(funct['(global)']){if(option.undef&&predefined[v]!=='boolean'){warning("'{a}' is not defined.",token,v);}
-note_implied(token);}else{switch(funct[v]){case'closure':case'function':case'var':case'unused':warning("'{a}' used out of scope.",token,v);break;case'label':warning("'{a}' is a statement label.",token,v);break;case'outer':case'global':break;default:if(s===true){funct[v]=true;}else if(s===null){warning("'{a}' is not allowed.",token,v);note_implied(token);}else if(typeof s!=='object'){if(option.undef){warning("'{a}' is not defined.",token,v);}else{funct[v]=true;}
-note_implied(token);}else{switch(s[v]){case'function':case'var':case'unused':s[v]='closure';funct[v]=s['(global)']?'global':'outer';break;case'closure':case'parameter':funct[v]=s['(global)']?'global':'outer';break;case'label':warning("'{a}' is a statement label.",token,v);}}}}
-return this;},led:function(){error("Expected an operator and instead saw '{a}'.",nexttoken,nexttoken.value);}};type('(regexp)',function(){return this;});delim('(endline)');delim('(begin)');delim('(end)').reach=true;delim('</').reach=true;delim('<!');delim('<!--');delim('-->');delim('(error)').reach=true;delim('}').reach=true;delim(')');delim(']');delim('"').reach=true;delim("'").reach=true;delim(';');delim(':').reach=true;delim(',');delim('#');delim('@');reserve('else');reserve('case').reach=true;reserve('catch');reserve('default').reach=true;reserve('finally');reservevar('arguments');reservevar('eval');reservevar('false');reservevar('Infinity');reservevar('NaN');reservevar('null');reservevar('this');reservevar('true');reservevar('undefined');assignop('=','assign',20);assignop('+=','assignadd',20);assignop('-=','assignsub',20);assignop('*=','assignmult',20);assignop('/=','assigndiv',20).nud=function(){error("A regular expression literal can be confused with '/='.");};assignop('%=','assignmod',20);bitwiseassignop('&=','assignbitand',20);bitwiseassignop('|=','assignbitor',20);bitwiseassignop('^=','assignbitxor',20);bitwiseassignop('<<=','assignshiftleft',20);bitwiseassignop('>>=','assignshiftright',20);bitwiseassignop('>>>=','assignshiftrightunsigned',20);infix('?',function(left,that){that.left=left;that.right=parse(10);advance(':');that['else']=parse(10);return that;},30);infix('||','or',40);infix('&&','and',50);bitwise('|','bitor',70);bitwise('^','bitxor',80);bitwise('&','bitand',90);relation('==',function(left,right){if(option.eqeqeq){warning("Expected '{a}' and instead saw '{b}'.",this,'===','==');}else if(isPoorRelation(left)){warning("Use '{a}' to compare with '{b}'.",this,'===',left.value);}else if(isPoorRelation(right)){warning("Use '{a}' to compare with '{b}'.",this,'===',right.value);}
-return this;});relation('===');relation('!=',function(left,right){if(option.eqeqeq){warning("Expected '{a}' and instead saw '{b}'.",this,'!==','!=');}else if(isPoorRelation(left)){warning("Use '{a}' to compare with '{b}'.",this,'!==',left.value);}else if(isPoorRelation(right)){warning("Use '{a}' to compare with '{b}'.",this,'!==',right.value);}
-return this;});relation('!==');relation('<');relation('>');relation('<=');relation('>=');bitwise('<<','shiftleft',120);bitwise('>>','shiftright',120);bitwise('>>>','shiftrightunsigned',120);infix('in','in',120);infix('instanceof','instanceof',120);infix('+',function(left,that){var right=parse(130);if(left&&right&&left.id==='(string)'&&right.id==='(string)'){left.value+=right.value;left.character=right.character;if(jx.test(left.value)){warning("JavaScript URL.",left);}
-return left;}
-that.left=left;that.right=right;return that;},130);prefix('+','num');infix('-','sub',130);prefix('-','neg');infix('*','mult',140);infix('/','div',140);infix('%','mod',140);suffix('++','postinc');prefix('++','preinc');syntax['++'].exps=true;suffix('--','postdec');prefix('--','predec');syntax['--'].exps=true;prefix('delete',function(){var p=parse(0);if(!p||(p.id!=='.'&&p.id!=='[')){warning("Expected '{a}' and instead saw '{b}'.",nexttoken,'.',nexttoken.value);}
-this.first=p;return this;}).exps=true;prefix('~',function(){if(option.bitwise){warning("Unexpected '{a}'.",this,'~');}
-parse(150);return this;});prefix('!',function(){this.right=parse(150);this.arity='unary';if(bang[this.right.id]===true){warning("Confusing use of '{a}'.",this,'!');}
-return this;});prefix('typeof','typeof');prefix('new',function(){var c=parse(155),i;if(c&&c.id!=='function'){if(c.identifier){c['new']=true;switch(c.value){case'Object':warning("Use the object literal notation {}.",token);break;case'Array':if(nexttoken.id!=='('){warning("Use the array literal notation [].",token);}else{advance('(');if(nexttoken.id===')'){warning("Use the array literal notation [].",token);}else{i=parse(0);c.dimension=i;if((i.id==='(number)'&&/[.+\-Ee]/.test(i.value))||(i.id==='-'&&!i.right)||i.id==='(string)'||i.id==='['||i.id==='{'||i.id==='true'||i.id==='false'||i.id==='null'||i.id==='undefined'||i.id==='Infinity'){warning("Use the array literal notation [].",token);}
-if(nexttoken.id!==')'){error("Use the array literal notation [].",token);}}
-advance(')');}
-this.first=c;return this;case'Number':case'String':case'Boolean':case'Math':case'JSON':warning("Do not use {a} as a constructor.",token,c.value);break;case'Function':if(!option.evil){warning("The Function constructor is eval.");}
-break;case'Date':case'RegExp':break;default:if(c.id!=='function'){i=c.value.substr(0,1);if(option.newcap&&(i<'A'||i>'Z')){warning("A constructor name should start with an uppercase letter.",token);}}}}else{if(c.id!=='.'&&c.id!=='['&&c.id!=='('){warning("Bad constructor.",token);}}}else{warning("Weird construction. Delete 'new'.",this);}
-adjacent(token,nexttoken);if(nexttoken.id!=='('){warning("Missing '()' invoking a constructor.");}
-this.first=c;return this;});syntax['new'].exps=true;infix('.',function(left,that){adjacent(prevtoken,token);var m=identifier();if(typeof m==='string'){countMember(m);}
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-adsafe_went=true;adsafe_may=false;}}}
-if(!option.evil&&(m==='eval'||m==='execScript')){warning('eval is evil.');}else if(option.safe){for(;;){if(banned[m]===true){warning("ADsafe restricted word '{a}'.",token,m);}
-if(typeof predefined[left.value]!=='boolean'||nexttoken.id==='('){break;}
-if(standard_member[m]===true){if(nexttoken.id==='.'){warning("ADsafe violation.",that);}
-break;}
-if(nexttoken.id!=='.'){warning("ADsafe violation.",that);break;}
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-if(!left.identifier&&left.id!=='.'&&left.id!=='['&&left.id!=='('&&left.id!=='&&'&&left.id!=='||'&&left.id!=='?'){warning("Bad invocation.",left);}}
-that.left=left;return that;},155,true).exps=true;prefix('(',function(){nospace();var v=parse(0);advance(')',this);nospace(prevtoken,token);if(option.immed&&v.id==='function'){if(nexttoken.id==='('){warning("Move the invocation into the parens that contain the function.",nexttoken);}else{warning("Do not wrap function literals in parens unless they are to be immediately invoked.",this);}}
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-advance(']',that);nospace(prevtoken,token);that.left=left;that.right=e;return that;},160,true);prefix('[',function(){var b=token.line!==nexttoken.line;this.first=[];if(b){indent+=option.indent;if(nexttoken.from===indent+option.indent){indent+=option.indent;}}
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-advance(']',this);return this;},160);function property_name(){var i=optionalidentifier(true);if(!i){if(nexttoken.id==='(string)'){i=nexttoken.value;advance();}else if(nexttoken.id==='(number)'){i=nexttoken.value.toString();advance();}}
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-for(;;){if(nexttoken.id==='}'){break;}
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-i=property_name();if(!i){error("Missing property name.");}
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-p=f['(params)'];if(p){warning("Unexpected parameter '{a}' in get {b} function.",t,p[0],i);}
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-t=nexttoken;adjacent(token,nexttoken);f=doFunction(i);p=f['(params)'];if(!p||p.length!==1||p[0]!=='value'){warning("Expected (value) in set {a} function.",t,i);}}else{i=property_name();if(typeof i!=='string'){break;}
-advance(':');nonadjacent(token,nexttoken);parse(10);}
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-if(b){indent-=option.indent;indentation();}
-advance('}',this);return this;};x.fud=function(){error("Expected to see a statement and instead saw a block.",token);};}(delim('{')));function varstatement(prefix){var id,name,value;if(funct['(onevar)']&&option.onevar){warning("Too many var statements.");}else if(!funct['(global)']){funct['(onevar)']=true;}
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-if(peek(0).id==='='&&nexttoken.identifier){error("Variable {a} was not declared correctly.",nexttoken,nexttoken.value);}
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-comma();}
-return this;}
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-return this;});blockstmt('try',function(){var b,e,s;if(option.adsafe){warning("ADsafe try violation.",this);}
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-advance();advance(')');block(false);b=true;scope=s;}
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-advance(')',t);nospace(prevtoken,token);block(true);funct['(breakage)']-=1;funct['(loopage)']-=1;return this;}).labelled=true;reserve('with');blockstmt('switch',function(){var t=nexttoken,g=false;funct['(breakage)']+=1;advance('(');nonadjacent(this,t);nospace();this.condition=parse(20);advance(')',t);nospace(prevtoken,token);nonadjacent(token,nexttoken);t=nexttoken;advance('{');nonadjacent(token,nexttoken);indent+=option.indent;this.cases=[];for(;;){switch(nexttoken.id){case'case':switch(funct['(verb)']){case'break':case'case':case'continue':case'return':case'switch':case'throw':break;default:warning("Expected a 'break' statement before 'case'.",token);}
-indentation(-option.indent);advance('case');this.cases.push(parse(20));g=true;advance(':');funct['(verb)']='case';break;case'default':switch(funct['(verb)']){case'break':case'continue':case'return':case'throw':break;default:warning("Expected a 'break' statement before 'default'.",token);}
-indentation(-option.indent);advance('default');g=true;advance(':');break;case'}':indent-=option.indent;indentation();advance('}',t);if(this.cases.length===1||this.condition.id==='true'||this.condition.id==='false'){warning("This 'switch' should be an 'if'.",this);}
-funct['(breakage)']-=1;funct['(verb)']=undefined;return;case'(end)':error("Missing '{a}'.",nexttoken,'}');return;default:if(g){switch(token.id){case',':error("Each value should have its own case label.");return;case':':statements();break;default:error("Missing ':' on a case clause.",token);}}else{error("Expected '{a}' and instead saw '{b}'.",nexttoken,'case',nexttoken.value);}}}}).labelled=true;stmt('debugger',function(){if(!option.debug){warning("All 'debugger' statements should be removed.");}
-return this;}).exps=true;(function(){var x=stmt('do',function(){funct['(breakage)']+=1;funct['(loopage)']+=1;this.first=block(true);advance('while');var t=nexttoken;nonadjacent(token,t);advance('(');nospace();parse(20);if(nexttoken.id==='='){warning("Expected a conditional expression and instead saw an assignment.");advance('=');parse(20);}
-advance(')',t);nospace(prevtoken,token);funct['(breakage)']-=1;funct['(loopage)']-=1;return this;});x.labelled=true;x.exps=true;}());blockstmt('for',function(){var f=option.forin,s,t=nexttoken;funct['(breakage)']+=1;funct['(loopage)']+=1;advance('(');nonadjacent(this,t);nospace();if(peek(nexttoken.id==='var'?1:0).id==='in'){if(nexttoken.id==='var'){advance('var');varstatement(true);}else{switch(funct[nexttoken.value]){case'unused':funct[nexttoken.value]='var';break;case'var':break;default:warning("Bad for in variable '{a}'.",nexttoken,nexttoken.value);}
-advance();}
-advance('in');parse(20);advance(')',t);s=block(true);if(!f&&(s.length>1||typeof s[0]!=='object'||s[0].value!=='if')){warning("The body of a for in should be wrapped in an if statement to filter unwanted properties from the prototype.",this);}
-funct['(breakage)']-=1;funct['(loopage)']-=1;return this;}else{if(nexttoken.id!==';'){if(nexttoken.id==='var'){advance('var');varstatement();}else{for(;;){parse(0,'for');if(nexttoken.id!==','){break;}
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-nolinebreak(token);advance(';');if(nexttoken.id===';'){error("Expected '{a}' and instead saw '{b}'.",nexttoken,')',';');}
-if(nexttoken.id!==')'){for(;;){parse(0,'for');if(nexttoken.id!==','){break;}
-comma();}}
-advance(')',t);nospace(prevtoken,token);block(true);funct['(breakage)']-=1;funct['(loopage)']-=1;return this;}}).labelled=true;stmt('break',function(){var v=nexttoken.value;if(funct['(breakage)']===0){warning("Unexpected '{a}'.",nexttoken,this.value);}
-nolinebreak(this);if(nexttoken.id!==';'){if(token.line===nexttoken.line){if(funct[v]!=='label'){warning("'{a}' is not a statement label.",nexttoken,v);}else if(scope[v]!==funct){warning("'{a}' is out of scope.",nexttoken,v);}
-this.first=nexttoken;advance();}}
-reachable('break');return this;}).exps=true;stmt('continue',function(){var v=nexttoken.value;if(funct['(breakage)']===0){warning("Unexpected '{a}'.",nexttoken,this.value);}
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-this.first=nexttoken;advance();}}else if(!funct['(loopage)']){warning("Unexpected '{a}'.",nexttoken,this.value);}
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-if(o[nexttoken.value]===true){warning("Duplicate key '{a}'.",nexttoken,nexttoken.value);}else if(nexttoken.value==='__proto__'){warning("Stupid key '{a}'.",nexttoken,nexttoken.value);}else{o[nexttoken.value]=true;}
-advance();advance(':');jsonValue();if(nexttoken.id!==','){break;}
-advance(',');}}
-advance('}');}
-function jsonArray(){var t=nexttoken;advance('[');if(nexttoken.id!==']'){for(;;){if(nexttoken.id==='(end)'){error("Missing ']' to match '[' from line {a}.",nexttoken,t.line);}else if(nexttoken.id===']'){warning("Unexpected comma.",token);break;}else if(nexttoken.id===','){error("Unexpected comma.",nexttoken);}
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-advance(',');}}
-advance(']');}
-switch(nexttoken.id){case'{':jsonObject();break;case'[':jsonArray();break;case'true':case'false':case'null':case'(number)':case'(string)':advance();break;case'-':advance('-');if(token.character!==nexttoken.from){warning("Unexpected space after '-'.",token);}
-adjacent(token,nexttoken);advance('(number)');break;default:error("Expected a JSON value.",nexttoken);}}
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-if(o.safe){o.browser=false;o.css=false;o.debug=false;o.devel=false;o.eqeqeq=true;o.evil=false;o.forin=false;o.nomen=true;o.on=false;o.rhino=false;o.safe=true;o.windows=false;o.strict=true;o.sub=false;o.undef=true;o.widget=false;predefined.Date=null;predefined['eval']=null;predefined.Function=null;predefined.Object=null;predefined.ADSAFE=false;predefined.lib=false;}
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-option.indent=option.indent||4;option.maxerr=option.maxerr||50;adsafe_id='';adsafe_may=false;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';}
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-fu.name=f['(name)'];fu.param=f['(params)'];fu.line=f['(line)'];fu.last=f['(last)'];data.functions.push(fu);}
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-members=[];for(n in member){if(typeof member[n]==='number'){data.member=member;break;}}
-return data;};itself.report=function(option){var data=itself.data();var a=[],c,e,err,f,i,k,l,m='',n,o=[],s;function detail(h,array){var b,i,singularity;if(array){o.push('<div><i>'+h+'</i> ');array=array.sort();for(i=0;i<array.length;i+=1){if(array[i]!==singularity){singularity=array[i];o.push((b?', ':'')+singularity);b=true;}}
-o.push('</div>');}}
-if(data.errors||data.implieds||data.unused){err=true;o.push('<div id=errors><i>Error:</i>');if(data.errors){for(i=0;i<data.errors.length;i+=1){c=data.errors[i];if(c){e=c.evidence||'';o.push('<p>Problem'+(isFinite(c.line)?' at line '+
-c.line+' character '+c.character:'')+': '+c.reason.entityify()+'</p><p class=evidence>'+
-(e&&(e.length>80?e.slice(0,77)+'...':e).entityify())+'</p>');}}}
-if(data.implieds){s=[];for(i=0;i<data.implieds.length;i+=1){s[i]='<code>'+data.implieds[i].name+'</code>&nbsp;<i>'+
-data.implieds[i].line+'</i>';}
-o.push('<p><i>Implied global:</i> '+s.join(', ')+'</p>');}
-if(data.unused){s=[];for(i=0;i<data.unused.length;i+=1){s[i]='<code><u>'+data.unused[i].name+'</u></code>&nbsp;<i>'+
-data.unused[i].line+'</i> <code>'+
-data.unused[i]['function']+'</code>';}
-o.push('<p><i>Unused variable:</i> '+s.join(', ')+'</p>');}
-if(data.json){o.push('<p>JSON: bad.</p>');}
-o.push('</div>');}
-if(!option){o.push('<br><div id=functions>');if(data.urls){detail("URLs<br>",data.urls,'<br>');}
-if(xmode==='style'){o.push('<p>CSS.</p>');}else if(data.json&&!err){o.push('<p>JSON: good.</p>');}else if(data.globals){o.push('<div><i>Global</i> '+
-data.globals.sort().join(', ')+'</div>');}else{o.push('<div><i>No new global variables introduced.</i></div>');}
-for(i=0;i<data.functions.length;i+=1){f=data.functions[i];o.push('<br><div class=function><i>'+f.line+'-'+
-f.last+'</i> '+(f.name||'')+'('+
-(f.param?f.param.join(', '):'')+')</div>');detail('<big><b>Unused</b></big>',f.unused);detail('Closure',f.closure);detail('Variable',f['var']);detail('Exception',f.exception);detail('Outer',f.outer);detail('Global',f.global);detail('Label',f.label);}
-if(data.member){a=to_array(data.member);if(a.length){a=a.sort();m='<br><pre id=members>/*members ';l=10;for(i=0;i<a.length;i+=1){k=a[i];n=k.name();if(l+n.length>72){o.push(m+'<br>');m='    ';l=1;}
-l+=n.length+2;if(data.member[k]===1){n='<i>'+n+'</i>';}
-if(i<a.length-1){n+=', ';}
-m+=n;}
-o.push(m+'<br>*/</pre>');}
-o.push('</div>');}}
-return o.join('');};itself.jslint=itself;itself.edition='2010-04-06';return itself;}());(function(a){var e,i,input;if(!a[0]){print("Usage: jslint.js file.js");quit(1);}
-input=readFile(a[0]);if(!input){print("jslint: Couldn't open file '"+a[0]+"'.");quit(1);}
-if(!JSLINT(input,{bitwise:true,eqeqeq:true,immed:true,newcap:true,nomen:true,onevar:true,plusplus:true,regexp:true,rhino:true,undef:true,white:true})){for(i=0;i<JSLINT.errors.length;i+=1){e=JSLINT.errors[i];if(e){print('Lint at line '+e.line+' character '+
-e.character+': '+e.reason);print((e.evidence||'').replace(/^\s*(\S*(\s+\S+)*)\s*$/,"$1"));print('');}}
-quit(2);}else{print("jslint: No problems found in "+a[0]);quit();}}(arguments));
\ No newline at end of file
+// jslint.js
+// 2014-04-21
+
+// 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 a JSON text.
+
+// The second parameter is an optional object of options that control the
+// operation of JSLINT. Most of the options are booleans: They are all
+// optional and have a default value of false. One of the options, predef,
+// can be an array of names, which will be used to declare global variables,
+// or an object whose keys are used as global names, with a boolean value
+// that determines if they are assignable.
+
+// If it checks out, JSLINT returns true. Otherwise, it returns false.
+
+// If false, you can inspect JSLINT.errors to find out the problems.
+// JSLINT.errors is an array of objects containing these properties:
+
+//  {
+//      line      : The line (relative to 0) at which the lint was found
+//      character : The character (relative to 0) at which the lint was found
+//      reason    : The problem
+//      evidence  : The text line in which the problem occurred
+//      raw       : The raw message before the details were inserted
+//      a         : The first detail
+//      b         : The second detail
+//      c         : The third detail
+//      d         : The fourth detail
+//  }
+
+// If a stopping error was found, a null will be the last element of the
+// JSLINT.errors array. A stopping error means that JSLint was not confident
+// enough to continue. It does not necessarily mean that the error was
+// especially heinous.
+
+// You can request a data structure that contains JSLint's results.
+
+//     var myData = JSLINT.data();
+
+// It returns a structure with this form:
+
+//     {
+//         errors: [
+//             {
+//                 line: NUMBER,
+//                 character: NUMBER,
+//                 reason: STRING,
+//                 evidence: STRING
+//             }
+//         ],
+//         functions: [
+//             {
+//                 name: STRING,
+//                 line: NUMBER,
+//                 level: NUMBER,
+//                 parameter: [
+//                     STRING
+//                 ],
+//                 var: [
+//                     STRING
+//                 ],
+//                 exception: [
+//                     STRING
+//                 ],
+//                 closure: [
+//                     STRING
+//                 ],
+//                 outer: [
+//                     STRING
+//                 ],
+//                 global: [
+//                     STRING
+//                 ],
+//                 label: [
+//                     STRING
+//                 ]
+//             }
+//         ],
+//         global: [
+//             STRING
+//         ],
+//         member: {
+//             STRING: NUMBER
+//         },
+//         json: BOOLEAN
+//     }
+
+// 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 into an HTML <body>. It should be given the result of the
+// JSLINT.data function.
+
+//     var myReport = JSLINT.report(data);
+
+// You can request an HTML error report.
+
+//     var myErrorReport = JSLINT.error_report(data);
+
+// You can obtain an object containing all of the properties found in the
+// file. JSLINT.property contains an object containing a key for each
+// property used in the program, the value being the number of times that
+// property name was used in the file.
+
+// You can request a properties report, which produces a list of the program's
+// properties in the form of a /*properties*/ declaration.
+
+//      var myPropertyReport = JSLINT.properties_report(JSLINT.property);
+
+// You can obtain the parse tree that JSLint constructed while parsing. The
+// latest tree is kept in JSLINT.tree. A nice stringification can be produced
+// with
+
+//     JSON.stringify(JSLINT.tree, [
+//         'string',  'arity', 'name',  'first',
+//         'second', 'third', 'block', 'else'
+//     ], 4));
+
+// You can request a context coloring table. It contains information that can be
+// applied to the file that was analyzed. Context coloring colors functions
+// based on their nesting level, and variables on the color of the functions
+// in which they are defined.
+
+//      var myColorization = JSLINT.color(data);
+
+// It returns an array containing objects of this form:
+
+//      {
+//          from: COLUMN,
+//          thru: COLUMN,
+//          line: ROW,
+//          level: 0 or higher
+//      }
+
+// JSLint provides three inline directives. They look like slashstar comments,
+// and allow for setting options, declaring global variables, and establishing a
+// set of allowed property names.
+
+// These directives respect function scope.
+
+// The jslint directive is a special comment that can set one or more options.
+// For example:
+
+/*jslint
+    evil: true, nomen: true, regexp: true, todo: true
+*/
+
+// The current option set is
+
+//     ass        true, if assignment expressions should be allowed
+//     bitwise    true, if bitwise operators should be allowed
+//     browser    true, if the standard browser globals should be predefined
+//     closure    true, if Google Closure idioms should be tolerated
+//     continue   true, if the continuation statement 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
+//     evil       true, if eval should be allowed
+//     forin      true, if for in statements need not filter
+//     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 _
+//     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
+//     unparam    true, if unused parameters should be tolerated
+//     sloppy     true, if the 'use strict'; pragma is optional
+//     stupid     true, if really stupid practices are tolerated
+//     sub        true, if all forms of subscript notation are tolerated
+//     todo       true, if TODO comments are tolerated
+//     vars       true, if multiple var statements per function should be allowed
+//     white      true, if sloppy whitespace is tolerated
+
+// 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', '!', '!=', '!==', '"', '%', '\'', '(begin)',
+    '(error)', '*', '+', '-', '/', '<', '<=', '==', '===', '>', '>=', '\\', a,
+    a_label, a_scope, already_defined, and, apply, arguments, arity, ass,
+    assign, assignment_expression, assignment_function_expression, at, avoid_a,
+    b, bad_assignment, bad_constructor, bad_in_a, bad_invocation, bad_new,
+    bad_number, bad_operand, bad_wrap, bitwise, block, break, breakage, browser,
+    c, call, charAt, charCodeAt, character, closure, code, color, combine_var,
+    comments, conditional_assignment, confusing_a, confusing_regexp,
+    constructor_name_a, continue, control_a, couch, create, d, dangling_a, data,
+    dead, debug, deleted, devel, disrupt, duplicate_a, edge, edition, elif,
+    else, empty_block, empty_case, empty_class, entityify, eqeq, error_report,
+    errors, evidence, evil, exception, exec, expected_a_at_b_c, expected_a_b,
+    expected_a_b_from_c_d, expected_id_a, expected_identifier_a,
+    expected_identifier_a_reserved, expected_number_a, expected_operator_a,
+    expected_positive_a, expected_small_a, expected_space_a_b,
+    expected_string_a, f, first, flag, floor, forEach, for_if, forin, from,
+    fromCharCode, fud, function, function_block, function_eval, function_loop,
+    function_statement, function_strict, functions, global, hasOwnProperty, id,
+    identifier, identifier_function, immed, implied_evil, indent, indexOf,
+    infix_in, init, insecure_a, isAlpha, isArray, isDigit, isNaN, join, jslint,
+    json, keys, kind, label, labeled, lbp, leading_decimal_a, led, left, length,
+    level, line, loopage, master, match, maxerr, maxlen, message, missing_a,
+    missing_a_after_b, missing_property, missing_space_a_b, missing_use_strict,
+    mode, move_invocation, move_var, n, name, name_function, nested_comment,
+    newcap, node, nomen, not, not_a_constructor, not_a_defined, not_a_function,
+    not_a_label, not_a_scope, not_greater, nud, number, octal_a, open, outer,
+    parameter, parameter_a_get_b, parameter_arguments_a, parameter_set_a,
+    params, paren, passfail, plusplus, pop, postscript, predef, properties,
+    properties_report, property, prototype, push, quote, r, radix, raw,
+    read_only, reason, redefinition_a_b, regexp, relation, replace, report,
+    reserved, reserved_a, rhino, right, scanned_a_b, scope, search, second,
+    shift, slash_equal, slice, sloppy, sort, split, statement, statement_block,
+    stop, stopping, strange_loop, strict, string, stupid, sub, subscript,
+    substr, supplant, sync_a, t, tag_a_in_b, test, third, thru, toString, todo,
+    todo_comment, token, tokens, too_long, too_many, trailing_decimal_a, tree,
+    unclosed, unclosed_comment, unclosed_regexp, unescaped_a, unexpected_a,
+    unexpected_char_a, unexpected_comment, unexpected_label_a,
+    unexpected_property_a, unexpected_space_a_b, unexpected_typeof_a,
+    uninitialized_a, unnecessary_else, unnecessary_initialize, unnecessary_use,
+    unparam, unreachable_a_b, unsafe, unused_a, url, use_array, use_braces,
+    use_nested_if, use_object, use_or, use_param, use_spaces, used,
+    used_before_a, var, var_a_not, var_loop, vars, varstatement, warn, warning,
+    was, weird_assignment, weird_condition, weird_new, weird_program,
+    weird_relation, weird_ternary, white, wrap, wrap_immediate, wrap_regexp,
+    write_is_wrong, writeable
+*/
+
+// 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 = Object.create(null);
+        for (i = 0; i < length; i += 1) {
+            object[array[i]] = value;
+        }
+        return object;
+    }
+
+
+    var allowed_option = {
+            ass       : true,
+            bitwise   : true,
+            browser   : true,
+            closure   : true,
+            continue  : true,
+            couch     : true,
+            debug     : true,
+            devel     : true,
+            eqeq      : true,
+            evil      : true,
+            forin     : true,
+            indent    :   10,
+            maxerr    : 1000,
+            maxlen    :  256,
+            newcap    : true,
+            node      : true,
+            nomen     : true,
+            passfail  : true,
+            plusplus  : true,
+            properties: true,
+            regexp    : true,
+            rhino     : true,
+            unparam   : true,
+            sloppy    : true,
+            stupid    : true,
+            sub       : true,
+            todo      : true,
+            vars      : true,
+            white     : true
+        },
+        anonname,       // The guessed name for anonymous functions.
+
+// These are operators that should not be used with the ! operator.
+
+        bang = {
+            '<'  : true,
+            '<=' : true,
+            '==' : true,
+            '===': true,
+            '!==': true,
+            '!=' : true,
+            '>'  : true,
+            '>=' : true,
+            '+'  : true,
+            '-'  : true,
+            '*'  : true,
+            '/'  : true,
+            '%'  : true
+        },
+        begin,          // The root token
+        block_var,     // vars defined in the current block
+
+// browser contains a set of global names that are commonly provided by a
+// web browser environment.
+
+        browser = array_to_object([
+            'clearInterval', 'clearTimeout', 'document', 'event', 'FormData',
+            'frames', 'history', 'Image', 'localStorage', 'location', 'name',
+            'navigator', 'Option', 'parent', 'screen', 'sessionStorage',
+            'setInterval', 'setTimeout', 'Storage', 'window', 'XMLHttpRequest'
+        ], false),
+
+// bundle contains the text messages.
+
+        bundle = {
+            a_label: "'{a}' is a statement label.",
+            a_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.",
+            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.",
+            redefinition_a_b: "Redefinition of '{a}' from line {b}.",
+            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_nested_if: "Expected 'else { if' and instead saw 'else if'.",
+            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,          // The current function
+
+        functions,      // All of the functions
+        global_funct,   // The global body
+        global_scope,   // The global scope
+        in_block,       // Where function statements are not allowed
+        indent,
+        itself,         // JSLINT itself
+        json_mode,
+        lex,            // the tokenizer
+        lines,
+        lookahead,
+        node = array_to_object([
+            'Buffer', 'clearImmediate', 'clearInterval', 'clearTimeout',
+            'console', 'exports', 'global', 'module', 'process',
+            'require', 'setImmediate', '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,
+        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,      // An object containing an object for each variable in scope
+        semicolon_coda = array_to_object([';', '"', '\'', ')'], true),
+
+// 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', 'Map', 'Math', 'Number',
+            'Object', 'parseInt', 'parseFloat', 'Promise', 'Proxy',
+            'RangeError', 'ReferenceError', 'Reflect', 'RegExp', 'Set',
+            'String', 'Symbol', 'SyntaxError', 'System', 'TypeError',
+            'URIError', 'WeakMap', 'WeakSet'
+        ], false),
+
+        strict_mode,
+        syntax = Object.create(null),
+        token,
+        tokens,
+        var_mode,
+        warnings,
+
+// Regular expressions. Some of these are stupidly long.
+
+// carriage return, carriage return linefeed, or linefeed
+        crlfx = /\r\n?|\n/,
+// unsafe characters that are silently deleted by one or more browsers
+        cx = /[\u0000-\u0008\u000a-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/,
+// identifier
+        ix = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/,
+// javascript url
+        jx = /^(?:javascript|jscript|ecmascript|vbscript)\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,
+// sync
+        syx = /Sync$/,
+// comment todo
+        tox = /^\W*to\s*do(?:\W|$)/i,
+// token
+        tx = /^\s*([(){}\[\]\?.,:;'"~#@`]|={1,3}|\/(\*(jslint|properties|property|members?|globals?)?|=|\/)?|\*[\/=]?|\+(?:=|\++)?|-(?:=|-+)?|[\^%]=?|&[&=]?|\|[|=]?|>{1,3}=?|<(?:[\/=!]|\!(\[|--)?|<=?)?|\!(\!|==?)?|[a-zA-Z_$][a-zA-Z0-9_$]*|[0-9]+(?:[xX][0-9a-fA-F]+|\.[0-9]*)?(?:[eE][+\-]?[0-9]+)?)/;
+
+
+    if (typeof String.prototype.entityify !== 'function') {
+        String.prototype.entityify = function () {
+            return this
+                .replace(/&/g, '&amp;')
+                .replace(/</g, '&lt;')
+                .replace(/>/g, '&gt;');
+        };
+    }
+
+    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.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;
+        }
+        if (option.devel) {
+            add_to_predefined(devel);
+            option.devel = false;
+        }
+        if (option.node) {
+            add_to_predefined(node);
+            option.node = false;
+            node_js = true;
+        }
+        if (option.rhino) {
+            add_to_predefined(rhino);
+            option.rhino = false;
+        }
+    }
+
+
+// Produce an error warning.
+
+    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);
+        }
+    }
+
+// 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;
+            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 < source_row.length) {
+                warn('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)') {
+                if (jx.test(value)) {
+                    warn('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('reserved_a', line, from, value);
+                } else if (!option.nomen &&
+                        (value.charAt(0) === '_' ||
+                        value.charAt(value.length - 1) === '_')) {
+                    warn('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;
+            if (comments.length) {
+                the_token.comments = comments;
+                comments = [];
+            }
+            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;
+            }
+            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 ch, at = 0, r = '', result;
+
+            function hex(n) {
+                var i = parseInt(source_row.substr(at + 1, n), 16);
+                at += n;
+                if (i >= 32 && i <= 126 &&
+                        i !== 34 && i !== 92 && i !== 39) {
+                    warn('unexpected_a', line, character, '\\');
+                }
+                character += n;
+                ch = String.fromCharCode(i);
+            }
+
+            if (json_mode && x !== '"') {
+                warn('expected_a_b', line, character, '"', x);
+            }
+
+            for (;;) {
+                while (at >= source_row.length) {
+                    at = 0;
+                    if (!next_line()) {
+                        stop('unclosed', line - 1, from);
+                    }
+                }
+                ch = source_row.charAt(at);
+                if (ch === x) {
+                    character += 1;
+                    source_row = source_row.slice(at + 1);
+                    result = it('(string)', r);
+                    result.quote = x;
+                    return result;
+                }
+                if (ch < ' ') {
+                    if (ch === '\n' || ch === '\r') {
+                        break;
+                    }
+                    warn('control_a', line, character + at,
+                        source_row.slice(0, at));
+                } else if (ch === '\\') {
+                    at += 1;
+                    character += 1;
+                    ch = source_row.charAt(at);
+                    switch (ch) {
+                    case '':
+                        warn('unexpected_a', line, character, '\\');
+                        next_line();
+                        at = -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');
+                        }
+                        ch = '\v';
+                        break;
+                    case 'x':
+                        if (json_mode) {
+                            warn('unexpected_a', line, character, '\\x');
+                        }
+                        hex(2);
+                        break;
+                    default:
+                        if (typeof descapes[ch] !== 'string') {
+                            warn(ch >= '0' && ch <= '7' ? 'octal_a' : 'unexpected_a',
+                                line, character, '\\' + ch);
+                        } else {
+                            ch = descapes[ch];
+                        }
+                    }
+                }
+                r += ch;
+                character += 1;
+                at += 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 at = 0,
+                b,
+                bit,
+                depth = 0,
+                flag = '',
+                high,
+                letter,
+                low,
+                potential,
+                quote,
+                result;
+            for (;;) {
+                b = true;
+                c = source_row.charAt(at);
+                at += 1;
+                switch (c) {
+                case '':
+                    stop('unclosed_regexp', line, from);
+                    return;
+                case '/':
+                    if (depth > 0) {
+                        warn('unescaped_a', line, from + at, '/');
+                    }
+                    c = source_row.slice(0, at - 1);
+                    potential = Object.create(regexp_flag);
+                    for (;;) {
+                        letter = source_row.charAt(at);
+                        if (potential[letter] !== true) {
+                            break;
+                        }
+                        potential[letter] = false;
+                        at += 1;
+                        flag += letter;
+                    }
+                    if (source_row.charAt(at).isAlpha()) {
+                        stop('unexpected_a', line, from, source_row.charAt(at));
+                    }
+                    character += at;
+                    source_row = source_row.slice(at);
+                    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(at);
+                    if (c < ' ') {
+                        warn('control_a', line, from + at, String(c));
+                    } else if (c === '<') {
+                        warn('unexpected_a', line, from + at, '\\');
+                    }
+                    at += 1;
+                    break;
+                case '(':
+                    depth += 1;
+                    b = false;
+                    if (source_row.charAt(at) === '?') {
+                        at += 1;
+                        switch (source_row.charAt(at)) {
+                        case ':':
+                        case '=':
+                        case '!':
+                            at += 1;
+                            break;
+                        default:
+                            warn('expected_a_b', line, from + at,
+                                ':', source_row.charAt(at));
+                        }
+                    }
+                    break;
+                case '|':
+                    b = false;
+                    break;
+                case ')':
+                    if (depth === 0) {
+                        warn('unescaped_a', line, from + at, ')');
+                    } else {
+                        depth -= 1;
+                    }
+                    break;
+                case ' ':
+                    pos = 1;
+                    while (source_row.charAt(at) === ' ') {
+                        at += 1;
+                        pos += 1;
+                    }
+                    if (pos > 1) {
+                        warn('use_braces', line, from + at, pos);
+                    }
+                    break;
+                case '[':
+                    c = source_row.charAt(at);
+                    if (c === '^') {
+                        at += 1;
+                        if (!option.regexp) {
+                            warn('insecure_a', line, from + at, c);
+                        } else if (source_row.charAt(at) === ']') {
+                            stop('unescaped_a', line, from + at, '^');
+                        }
+                    }
+                    bit = false;
+                    if (c === ']') {
+                        warn('empty_class', line, from + at - 1);
+                        bit = true;
+                    }
+klass:              do {
+                        c = source_row.charAt(at);
+                        at += 1;
+                        switch (c) {
+                        case '[':
+                        case '^':
+                            warn('unescaped_a', line, from + at, c);
+                            bit = true;
+                            break;
+                        case '-':
+                            if (bit) {
+                                bit = false;
+                            } else {
+                                warn('unescaped_a', line, from + at, '-');
+                                bit = true;
+                            }
+                            break;
+                        case ']':
+                            if (!bit) {
+                                warn('unescaped_a', line, from + at - 1, '-');
+                            }
+                            break klass;
+                        case '\\':
+                            c = source_row.charAt(at);
+                            if (c < ' ') {
+                                warn('control_a', line, from + at, String(c));
+                            } else if (c === '<') {
+                                warn('unexpected_a', line, from + at, '\\');
+                            }
+                            at += 1;
+                            bit = true;
+                            break;
+                        case '/':
+                            warn('unescaped_a', line, from + at - 1, '/');
+                            bit = true;
+                            break;
+                        default:
+                            bit = true;
+                        }
+                    } while (c);
+                    break;
+                case '.':
+                    if (!option.regexp) {
+                        warn('insecure_a', line, from + at, c);
+                    }
+                    break;
+                case ']':
+                case '?':
+                case '{':
+                case '}':
+                case '+':
+                case '*':
+                    warn('unescaped_a', line, from + at, c);
+                    break;
+                }
+                if (b) {
+                    switch (source_row.charAt(at)) {
+                    case '?':
+                    case '+':
+                    case '*':
+                        at += 1;
+                        if (source_row.charAt(at) === '?') {
+                            at += 1;
+                        }
+                        break;
+                    case '{':
+                        at += 1;
+                        c = source_row.charAt(at);
+                        if (c < '0' || c > '9') {
+                            warn('expected_number_a', line,
+                                from + at, c);
+                        }
+                        at += 1;
+                        low = +c;
+                        for (;;) {
+                            c = source_row.charAt(at);
+                            if (c < '0' || c > '9') {
+                                break;
+                            }
+                            at += 1;
+                            low = +c + (low * 10);
+                        }
+                        high = low;
+                        if (c === ',') {
+                            at += 1;
+                            high = Infinity;
+                            c = source_row.charAt(at);
+                            if (c >= '0' && c <= '9') {
+                                at += 1;
+                                high = +c;
+                                for (;;) {
+                                    c = source_row.charAt(at);
+                                    if (c < '0' || c > '9') {
+                                        break;
+                                    }
+                                    at += 1;
+                                    high = +c + (high * 10);
+                                }
+                            }
+                        }
+                        if (source_row.charAt(at) !== '}') {
+                            warn('expected_a_b', line, from + at,
+                                '}', c);
+                        } else {
+                            at += 1;
+                        }
+                        if (source_row.charAt(at) === '?') {
+                            at += 1;
+                        }
+                        if (low > high) {
+                            warn('not_greater', line, from + at,
+                                low, high);
+                        }
+                        break;
+                    }
+                }
+            }
+            c = source_row.slice(0, at - 1);
+            character += at;
+            source_row = source_row.slice(at);
+            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;
+            },
+
+// token -- this is called by advance to get the next token.
+
+            token: function () {
+                var first, i, snippet;
+
+                for (;;) {
+                    while (!source_row) {
+                        if (!next_line()) {
+                            return it('(end)');
+                        }
+                    }
+                    snippet = match(tx);
+                    if (snippet) {
+
+//      identifier
+
+                        first = snippet.charAt(0);
+                        if (first.isAlpha() || first === '_' || first === '$') {
+                            return it('(identifier)', snippet);
+                        }
+
+//      number
+
+                        if (first.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;
+                                }
+                                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);
+
+//      punctuator
+                        default:
+                            return it('(punctuator)', snippet);
+                        }
+                    }
+                }
+            }
+        };
+    }());
+
+    function define(kind, token) {
+
+// Define a name.
+
+        var name = token.string,
+            master = scope[name];       // The current definition of the name
+
+// vars are created with a deadzone, so that the expression that initializes
+// the var cannot access the var. Functions are not writeable.
+
+        token.dead = false;
+        token.init = false;
+        token.kind = kind;
+        token.master = master;
+        token.used = 0;
+        token.writeable = true;
+
+// Global variables are a little weird. They can be defined multiple times.
+// Some predefined global vars are (or should) not be writeable.
+
+        if (kind === 'var' && funct === global_funct) {
+            if (!master) {
+                if (predefined[name] === false) {
+                    token.writeable = false;
+                }
+                global_scope[name] = token;
+            }
+        } else {
+
+// It is an error if the name has already been defined in this scope, except
+// when reusing an exception variable name.
+
+            if (master) {
+                if (master.function === funct) {
+                    if (master.kind !== 'exception' || kind !== 'exception' ||
+                            !master.dead) {
+                        token.warn('already_defined', name);
+                    }
+                } else if (master.function !== global_funct) {
+                    if (kind === 'var') {
+                        token.warn('redefinition_a_b', name, master.line);
+                    }
+                }
+            }
+            scope[name] = token;
+            if (kind === 'var') {
+                block_var.push(name);
+            }
+        }
+    }
+
+    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 === '.') {
+                next_token.warn('trailing_decimal_a');
+            }
+            break;
+        case '-':
+            if (next_token.id === '-' || next_token.id === '--') {
+                next_token.warn('confusing_a');
+            }
+            break;
+        case '+':
+            if (next_token.id === '+' || next_token.id === '++') {
+                next_token.warn('confusing_a');
+            }
+            break;
+        }
+        if (token.id === '(string)' || token.identifier) {
+            anonname = token.string;
+        }
+
+        if (id && next_token.id !== id) {
+            if (match) {
+                next_token.warn('expected_a_b_from_c_d', id,
+                    match.id, match.line, artifact());
+            } else if (!next_token.identifier || next_token.string !== id) {
+                next_token.warn('expected_a_b', id, artifact());
+            }
+        }
+        prev_token = token;
+        token = next_token;
+        next_token = lookahead.shift() || lex.token();
+        next_token.function = funct;
+        tokens.push(next_token);
+    }
+
+
+    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:
+                    next_token.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]) {
+                next_token.stop('unexpected_a');
+            }
+            advance();
+            if (next_token.id !== ':') {
+                next_token.stop('expected_a_b', ':', artifact());
+            }
+            advance(':');
+            if (typeof allowed_option[name] === 'number') {
+                value = next_token.number;
+                if (value > allowed_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;
+    };
+
+
+// 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)) {
+            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.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 undefined:
+                return a.string === b.string;
+            case 'prefix':
+            case 'suffix':
+                return a.id === b.id && are_similar(a.first, b.first) &&
+                    a.id !== '{' && a.id !== '[';
+            case 'infix':
+                return are_similar(a.first, b.first) &&
+                    are_similar(a.second, b.second);
+            case 'ternary':
+                return are_similar(a.first, b.first) &&
+                    are_similar(a.second, b.second) &&
+                    are_similar(a.third, b.third);
+            case 'function':
+            case 'regexp':
+                return false;
+            default:
+                return true;
+            }
+        }
+        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)') {
+            token.stop('unexpected_a', next_token.id);
+        }
+        advance();
+        if (initial) {
+            anonname = 'anonymous';
+        }
+        if (initial === true && token.fud) {
+            left = token.fud();
+        } else {
+            if (token.nud) {
+                left = token.nud();
+            } else {
+                if (next_token.id === '(number)' && token.id === '.') {
+                    token.warn('leading_decimal_a', artifact());
+                    advance();
+                    return token;
+                }
+                token.stop('expected_identifier_a', artifact(token));
+            }
+            while (rbp < next_token.lbp) {
+                advance();
+                left = token.led(left);
+            }
+        }
+        if (left && left.assign && !initial) {
+            if (!option.ass) {
+                left.warn('assignment_expression');
+            }
+            if (left.id !== '=' && left.first.master) {
+                left.first.master.used = true;
+            }
+        }
+        return left;
+    }
+
+    protosymbol = {
+        nud: function () {
+            this.stop('unexpected_a');
+        },
+        led: function () {
+            this.stop('expected_operator_a');
+        },
+        warn: function (code, a, b, c, d) {
+            if (!this.warning) {
+                this.warning = warn(code, this.line || 0, this.from || 0,
+                    a || artifact(this), b, c, d);
+            }
+        },
+        stop: function (code, a, b, c, d) {
+            this.warning = undefined;
+            this.warn(code, a, b, c, d);
+            return quit('stopping', this.line, this.character);
+        },
+        lbp: 0
+    };
+
+// Functional constructors for making the symbols that will be inherited by
+// tokens.
+
+    function symbol(s, bp) {
+        var x = syntax[s];
+        if (!x) {
+            x = Object.create(protosymbol);
+            x.id = x.string = s;
+            x.lbp = bp || 0;
+            syntax[s] = x;
+        }
+        return x;
+    }
+
+    function postscript(x) {
+        x.postscript = true;
+        return x;
+    }
+
+    function ultimate(s) {
+        var x = symbol(s, 0);
+        x.from = 1;
+        x.thru = 1;
+        x.line = 0;
+        x.edge = 'edge';
+        x.string = s;
+        return postscript(x);
+    }
+
+    function 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 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, function labeled() {
+            var the_statement;
+            if (funct.breakage) {
+                funct.breakage.push(this);
+            } else {
+                funct.breakage = [this];
+            }
+            the_statement = f.apply(this);
+            if (funct.breakage.length > 1) {
+                funct.breakage.pop();
+            } else {
+                delete funct.breakage;
+            }
+            return the_statement;
+        });
+        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 && 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;
+
+// We don't like the empty statement.
+
+        if (next_token.id === ';') {
+            next_token.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(':');
+            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;
+            label.statement = next_token;
+        }
+
+// Parse the statement.
+
+        preamble = next_token;
+        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;
+// statements. 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') {
+                        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;
+
+// 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 === ';') {
+                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) {
+
+// A block is a sequence of statements wrapped in braces.
+
+        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 && !option.debug) {
+            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;
+        }
+    }
+
+
+// ECMAScript parser
+
+    (function () {
+        var x = symbol('(identifier)');
+        x.nud = function () {
+            var name = this.string,
+                master = scope[name],
+                writeable;
+
+// If the master is not in scope, then we may have an undeclared variable.
+// Check the predefined list. If it was predefined, create the global
+// variable.
+
+            if (!master) {
+                writeable = predefined[name];
+                if (typeof writeable === 'boolean') {
+                    global_scope[name] = master = {
+                        dead: false,
+                        function: global_funct,
+                        kind: 'var',
+                        string: name,
+                        writeable: writeable
+                    };
+
+// 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 {
+                    token.warn('used_before_a');
+                }
+            } else {
+                this.master = master;
+            }
+
+// Annotate uses that cross scope boundaries.
+
+            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;
+    }());
+
+
+// Build the syntax table by declaring the syntactic elements.
+
+    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);
+        that.warn('expected_a_b', 'undefined', 'void');
+        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 === '(string)' || 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.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.string === 'JSON') {
+                left.warn('not_a_function');
+            }
+        } 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');
+            }
+            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 === ']') {
+                    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, set, seen = Object.create(null);
+        that.first = [];
+        step_in();
+        while (next_token.id !== '}') {
+            indent.wrap = false;
+
+// JSLint recognizes the ES5 extension for get/set in object literals,
+// but requires that they be used in pairs.
+
+            edge();
+            if (next_token.string === 'get' && peek().id !== ':') {
+                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');
+                }
+                if (get.function.parameter.length) {
+                    get.warn('parameter_a_get_b', get.function.parameter[0], 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');
+                }
+                if (set.function.parameter.length === 0) {
+                    set.stop('parameter_set_a', 'value');
+                } else if (set.function.parameter[0] !== 'value') {
+                    set.stop('expected_a_b', 'value',
+                        set.function.parameter[0]);
+                }
+                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 === '}') {
+                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 () {
+
+// 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.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 === '=') {
+                if (funct === global_funct && !name.writeable) {
+                    name.warn('read_only');
+                }
+                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);
+        if (!name.writeable) {
+            name.warn('read_only');
+        }
+        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 = '';
+            one_space();
+        }
+        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 ':':
+        case '(end)':
+            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(this.elif ? 'use_nested_if' : 'unnecessary_else');
+            }
+            one_space();
+            advance('else');
+            one_space();
+            if (next_token.id === 'if') {
+                next_token.elif = true;
+                this.else = statement(true);
+            } else {
+                this.else = block('else');
+            }
+            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, 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 () {
+
+// switch.first         the switch expression
+// switch.second        the array of cases. A case is 'case' or 'default' token:
+//    case.first        the array of case expressions
+//    case.second       the array of statements
+// If all of the arrays of statements are disrupt, then the switch is disrupt.
+
+        var cases = [],
+            old_in_block = in_block,
+            particular,
+            that = token,
+            the_case = next_token;
+
+        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;
+            the_case.first = [];
+            the_case.arity = 'case';
+            for (;;) {
+                spaces();
+                edge('case');
+                advance('case');
+                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();
+            the_case.second = statements();
+            if (the_case.second && the_case.second.length > 0) {
+                if (!the_case.second[the_case.second.length - 1].disrupt) {
+                    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) {
+                this.disrupt = the_case.second[the_case.second.length - 1].disrupt;
+            } else {
+                the_case.warn('empty_case');
+            }
+            this.second.push(the_case);
+        }
+        if (this.break) {
+            this.disrupt = false;
+        }
+        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) {
+                    value.stop('bad_in_a');
+                }
+                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 &&
+                                    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 (!funct.breakage || (!option.continue && that.id === 'continue')) {
+            that.warn('unexpected_a');
+        } else 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;
+                if (that.id === 'break') {
+                    master.statement.break = true;
+                }
+                if (funct.breakage[funct.breakage.length - 1] === master.statement) {
+                    next_token.warn('unexpected_a');
+                }
+            }
+            that.first = next_token;
+            advance();
+        } else {
+            if (that.id === 'break') {
+                funct.breakage[funct.breakage.length - 1].break = true;
+            }
+        }
+        return that;
+
+    }
+
+    disrupt_stmt('break', function () {
+        return optional_label(this);
+    });
+
+    disrupt_stmt('continue', function () {
+        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;
+    });
+
+
+//  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 = 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');
+        }
+    }
+
+
+// The actual JSLINT function itself.
+
+    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; i < predef.length; i += 1) {
+                        predefined[predef[i]] = true;
+                    }
+                } else if (typeof predef === 'object') {
+                    add_to_predefined(predef);
+                }
+            }
+        } else {
+            option = Object.create(null);
+        }
+        option.indent = +option.indent || 4;
+        option.maxerr = +option.maxerr || 50;
+        global_scope = scope = Object.create(null);
+        global_funct = funct = {
+            scope: scope,
+            loopage: 0,
+            level: 0
+        };
+        functions = [funct];
+        block_var = [];
+
+        comments = [];
+        comments_off = false;
+        in_block = false;
+        indent = null;
+        json_mode = false;
+        lookahead = [];
+        node_js = false;
+        prereg = true;
+        strict_mode = false;
+        var_mode = null;
+        warnings = 0;
+        lex.init(the_source);
+
+        assume();
+
+        try {
+            advance();
+            if (next_token.id === '(number)') {
+                next_token.stop('unexpected_a');
+            } else {
+                switch (next_token.id) {
+                case '{':
+                case '[':
+                    comments_off = true;
+                    json_mode = true;
+                    json_value();
+                    break;
+                default:
+
+// 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) {
+                        next_token.edge = true;
+                        advance(';');
+                    }
+                    tree = statements();
+                    begin.first = tree;
+                    itself.tree = begin;
+                    if (tree.disrupt) {
+                        prev_token.warn('weird_program');
+                    }
+                }
+            }
+            indent = null;
+            advance('(end)');
+            itself.property = property;
+        } catch (e) {
+            if (e) {        // ~~
+                itself.errors.push({
+                    reason    : e.message,
+                    line      : e.line || next_token.line,
+                    character : e.character || next_token.from
+                }, null);
+            }
+        }
+        return itself.errors.length === 0;
+    };
+
+    function unique(array) {
+        array = array.sort();
+        var i, length = 0, previous, value;
+        for (i = 0; i < array.length; i += 1) {
+            value = array[i];
+            if (value !== previous) {
+                array[length] = value;
+                previous = value;
+                length += 1;
+            }
+        }
+        array.length = length;
+        return array;
+    }
+
+// Data summary.
+
+    itself.data = function () {
+        var data = {functions: []},
+            function_data,
+            i,
+            the_function,
+            the_scope;
+        data.errors = itself.errors;
+        data.json = json_mode;
+        data.global = unique(Object.keys(global_scope));
+
+        function selects(name) {
+            var kind = the_scope[name].kind;
+            switch (kind) {
+            case 'var':
+            case 'exception':
+            case 'label':
+                function_data[kind].push(name);
+                break;
+            }
+        }
+
+        for (i = 1; i < functions.length; i += 1) {
+            the_function = functions[i];
+            function_data = {
+                name: the_function.name,
+                line: the_function.line,
+                level: the_function.level,
+                parameter: the_function.parameter,
+                var: [],
+                exception: [],
+                closure: unique(the_function.closure),
+                outer: unique(the_function.outer),
+                global: unique(the_function.global),
+                label: []
+            };
+            the_scope = the_function.scope;
+            Object.keys(the_scope).forEach(selects);
+            function_data.var.sort();
+            function_data.exception.sort();
+            function_data.label.sort();
+            data.functions.push(function_data);
+        }
+        data.tokens = tokens;
+        return data;
+    };
+
+    itself.error_report = function (data) {
+        var evidence, i, output = [], warning;
+        if (data.errors.length) {
+            if (data.json) {
+                output.push('<cite>JSON: bad.</cite><br>');
+            }
+            for (i = 0; i < data.errors.length; i += 1) {
+                warning = data.errors[i];
+                if (warning) {
+                    evidence = warning.evidence || '';
+                    output.push('<cite>');
+                    if (isFinite(warning.line)) {
+                        output.push('<address>line ' +
+                            String(warning.line) +
+                            ' character ' + String(warning.character) +
+                            '</address>');
+                    }
+                    output.push(warning.reason.entityify() + '</cite>');
+                    if (evidence) {
+                        output.push('<pre>' + evidence.entityify() + '</pre>');
+                    }
+                }
+            }
+        }
+        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("<dt>" + h + "</dt><dd>");
+                array.forEach(function (item) {
+                    output.push((comma_needed ? ', ' : '') + item);
+                    comma_needed = true;
+                });
+                output.push("</dd>");
+            }
+        }
+
+        output.push('<dl class=level0>');
+        if (data.global.length) {
+            detail('global', data.global);
+            dl = true;
+        } else if (data.json) {
+            if (!data.errors.length) {
+                output.push("<dt>JSON: good.</dt>");
+            }
+        } else {
+            output.push("<dt><i>No new global variables introduced.</i></dt>");
+        }
+        if (dl) {
+            output.push("</dl>");
+        } else {
+            output[0] = '';
+        }
+
+        if (data.functions) {
+            for (i = 0; i < data.functions.length; i += 1) {
+                the_function = data.functions[i];
+                names = [];
+                if (the_function.params) {
+                    for (j = 0; j < the_function.params.length; j += 1) {
+                        names[j] = the_function.params[j].string;
+                    }
+                }
+                output.push('<dl class=level' + the_function.level +
+                    '><address>line ' + String(the_function.line) +
+                    '</address>' + the_function.name.entityify());
+                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('</dl>');
+            }
+        }
+        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; i < keys.length; i += 1) {
+            key = keys[i];
+            if (property[key] > 0) {
+                if (not_first) {
+                    mem += ',';
+                }
+                name = ix.test(key)
+                    ? key
+                    : '\'' + key.replace(nx, sanitize) + '\'';
+                if (mem.length + name.length >= 80) {
+                    output.push(mem);
+                    mem = '    ';
+                } else {
+                    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,
+            data_token = data.tokens[0];
+        while (data_token && data_token.id !== '(end)') {
+            from = data_token.from;
+            line = data_token.line;
+            thru = data_token.thru;
+            level = data_token.function.level;
+            do {
+                thru = data_token.thru;
+                data_token = data.tokens[i];
+                i += 1;
+            } while (data_token && data_token.line === line &&
+                    data_token.from - thru < 5 &&
+                    level === data_token.function.level);
+            result.push({
+                line: line,
+                level: level,
+                from: from,
+                thru: thru
+            });
+        }
+        return result;
+    };
+
+    itself.jslint = itself;
+
+    itself.edition = '2014-04-08';
+
+    return itself;
+}());
--- a/debian/copyright	Thu Jun 19 10:16:50 2014 +0200
+++ b/debian/copyright	Thu Jun 19 10:24:24 2014 +0200
@@ -21,8 +21,33 @@
     FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License along with
-    this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+    this program; if not, see <http://www.gnu.org/licenses/>.
+
+This package includes a copy of jslint (www.jslint.com), which is distributed
+under the following conditions:
+
+    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.
+
 
 On Debian systems, the complete text of the GNU General Public License v2
 may be found in '/usr/share/common-licenses/GPL-2'.