我正在尝试做一些疯狂的事情,我有一个JSON对象,我的网站有各种各样的规则。我有一个系统设置,我可以编写伪代码,然后将其转换为实际代码。我有这个完美的字符串工作,但现在我需要能够传递函数,并替换函数内部的伪代码,然后执行函数。
我认为我在正确的轨道上,但是当我将一个函数转换为字符串时,它只会将函数的输出转换为字符串。
这是我的JSON(部分内容)
customValidation: {
//compare: "(<!this!> && <!PrimeTimeDiscount!> == 200) || (<!PrimeTimeDiscount!> == 100)",
compare: function(){
return new Validator()["date"]("<!this!>", 50);
},
overrideDefault: true
}
注释掉的“比较”是我如何将此系统用于常规字符串。
以下是我处理将"<!this!>"
和"<!*!>"
转换为JSON对象的值的方法。它基本上是相同的代码两次,但下面的代码我已经开始修改以检测函数。
if(typeof customValidationRule != "function")
{
var string = customValidationRule.match(/<!(.*?)!>/g);
var customValidationTerms = new Array();
var execCustomValidationRule = customValidationRule;
$.each(string, function(i, v){
var customValidationTerm = v.replace(/<!/g, "").replace(/!>/g, "");
customValidationTerms.push(customValidationTerm);
});
$.each(customValidationTerms, function(i, v){
var RegEx = new RegExp("<!"+v+"!>", "ig");
if(v == "this")
{
var newData = value ? value : "''";
}
else
{
var newData = FormData[parentKey][TermNames[v]] ? FormData[parentKey][TermNames[v]] : "''";
}
newData = dataType == "currency" ? cleanVar(cleanCurrency(newData)) : newData;
newData = newData ? newData : "''";
execCustomValidationRule = execCustomValidationRule.replace(RegEx, newData);
});
}
else
{
var customValidationRuleString = customValidationRule().toString();
var string = customValidationRuleString.match(/<!(.*?)!>/g);
var customValidationTerms = new Array();
var execCustomValidationRule = customValidationRuleString;
$.each(string, function(i, v){
var customValidationTerm = v.replace(/<!/g, "").replace(/!>/g, "");
customValidationTerms.push(customValidationTerm);
});
$.each(customValidationTerms, function(i, v){
var RegEx = new RegExp("<!"+v+"!>", "ig");
if(v == "this")
{
var newData = value ? value : "''";
}
else
{
var newData = FormData[parentKey][TermNames[v]] ? FormData[parentKey][TermNames[v]] : "''";
}
newData = dataType == "currency" ? cleanVar(cleanCurrency(newData)) : newData;
newData = newData ? newData : "''";
execCustomValidationRule = execCustomValidationRule.replace(RegEx, newData);
});
var backToFunction = eval('(' + execCustomValidationRule + ')');
//validation = customValidationRule();
}
validation = eval(execCustomValidationRule);