38 lines
No EOL
2.9 KiB
JavaScript
38 lines
No EOL
2.9 KiB
JavaScript
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Array.prototype.______array='______array';var JSON={org:'http://www.JSON.org',copyright:'(c)2005 JSON.org',license:'http://www.crockford.com/JSON/license.html',stringify:function(arg){var c,i,l,s='',v;switch(typeof arg){case'object':if(arg){if(arg.______array=='______array'){for(i=0;i<arg.length;++i){v=this.stringify(arg[i]);if(s){s+=',';}
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s+=v;}
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return'['+s+']';}else if(typeof arg.toString!='undefined'){for(i in arg){v=arg[i];if(typeof v!='undefined'&&typeof v!='function'){v=this.stringify(v);if(s){s+=',';}
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s+=this.stringify(i)+':'+v;}}
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return'{'+s+'}';}}
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return'null';case'number':return isFinite(arg)?String(arg):'null';case'string':l=arg.length;s='"';for(i=0;i<l;i+=1){c=arg.charAt(i);if(c>=' '){if(c=='\\'||c=='"'){s+='\\';}
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s+=c;}else{switch(c){case'\b':s+='\\b';break;case'\f':s+='\\f';break;case'\n':s+='\\n';break;case'\r':s+='\\r';break;case'\t':s+='\\t';break;default:c=c.charCodeAt();s+='\\u00'+Math.floor(c/16).toString(16)+
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(c%16).toString(16);}}}
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return s+'"';case'boolean':return String(arg);default:return'null';}},parse:function(text){var at=0;var ch=' ';function error(m){throw{name:'JSONError',message:m,at:at-1,text:text};}
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function next(){ch=text.charAt(at);at+=1;return ch;}
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function white(){while(ch!==''&&ch<=' '){next();}}
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function str(){var i,s='',t,u;if(ch=='"'){outer:while(next()){if(ch=='"'){next();return s;}else if(ch=='\\'){switch(next()){case'b':s+='\b';break;case'f':s+='\f';break;case'n':s+='\n';break;case'r':s+='\r';break;case't':s+='\t';break;case'u':u=0;for(i=0;i<4;i+=1){t=parseInt(next(),16);if(!isFinite(t)){break outer;}
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u=u*16+t;}
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s+=String.fromCharCode(u);break;default:s+=ch;}}else{s+=ch;}}}
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error("Bad string");}
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function arr(){var a=[];if(ch=='['){next();white();if(ch==']'){next();return a;}
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while(ch){a.push(val());white();if(ch==']'){next();return a;}else if(ch!=','){break;}
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next();white();}}
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error("Bad array");}
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function obj(){var k,o={};if(ch=='{'){next();white();if(ch=='}'){next();return o;}
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while(ch){k=str();white();if(ch!=':'){break;}
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next();o[k]=val();white();if(ch=='}'){next();return o;}else if(ch!=','){break;}
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next();white();}}
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error("Bad object");}
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function num(){var n='',v;if(ch=='-'){n='-';next();}
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while(ch>='0'&&ch<='9'){n+=ch;next();}
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if(ch=='.'){n+='.';while(next()&&ch>='0'&&ch<='9'){n+=ch;}}
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if(ch=='e'||ch=='E'){n+='e';next();if(ch=='-'||ch=='+'){n+=ch;next();}
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while(ch>='0'&&ch<='9'){n+=ch;next();}}
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v=+n;if(!isFinite(v)){error("Bad number");}else{return v;}}
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function word(){switch(ch){case't':if(next()=='r'&&next()=='u'&&next()=='e'){next();return true;}
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break;case'f':if(next()=='a'&&next()=='l'&&next()=='s'&&next()=='e'){next();return false;}
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break;case'n':if(next()=='u'&&next()=='l'&&next()=='l'){next();return null;}
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break;}
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error("Syntax error");}
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function val(){white();switch(ch){case'{':return obj();case'[':return arr();case'"':return str();case'-':return num();default:return ch>='0'&&ch<='9'?num():word();}}
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return val();}}; |