【Aardio】Base32字符的编解码源码-改编自C#源码

Base32 编解码的代码，在Aardio中，目前没有现成的代码或库可以用(好像是这样吧……)

然后就仿着其他代码写了一段出来，直接放代码吧

Base32_encode = function(data){
	var bin = {};
	var len = 0;
	for(i=1;#data;1){
		bin[i] = string.format("%08b",data[i])
	}
	var res = string.join(bin,"");
	len = #res % 5;
	var resdata = "";
	if(len > 0){
		resdata = tostring(math.floor(10 ** (5 - len)))
		resdata = string.right(resdata,#resdata - 1);
	}
	res = res ++ resdata;
	var stan = "";
	if(#res % 40 > 0){
		var len2 = (40 - #res % 40) / 5;
		for(i=1;len2;1){
			stan = stan + "="
		}
	}
	var data_str = "";
	var len3 = #res / 5;
	for(i=1;len3;1){
		data_str = data_str ++ Base32Tab[tonumber(GetStrCenter(res,i * 5 - 4,5),2) + 1];
	}
	data_str = data_str ++ stan;
	return data_str;
}
Base32_decode = function(data){
	var restemp = "";
	var intemp = string.replace(data,"=","");
	var index = 0;
	for(i=1;#intemp;1){
		index = table.indexOf(Base32Tab,GetStrCenter(intemp,i,1)) - 1;
		if(index == -2){
			return ""; 
		}
		restemp = restemp ++ string.right(string.format("%08b",index),5)
	}
	var comlement = tostring(math.floor(10 ** (8 - #restemp % 8)));
	restemp = restemp ++ string.right(comlement,#comlement - 1);
	
	var restext = "";
	var ilen = #restemp / 8;
	for(i=1;ilen;1){
		restext = restext ++ tonumber(GetStrCenter(restemp,i * 8 - 7,8),2) ++ ",";
	}
	restext = string.left(restext,#restext - 1);
	restext = "{" ++ restext ++ "}"
	return BinToStr(restext); 
}

调用方式：

Base32_encode(str);    //加密
Base32_decode(str);    //解密