eval

eval evaluates the string given as UniScript code.

ret = eval(ssString)

Return Value

The function does not have a return value. Instead it will create an exception if an error occurs. The exception can be caught withe the try/except statement. See also evalp.

Parameters

ssString

ssString is a string with UniScript code (Statements and or functions).

Example

eval("a = 1+1");
print a;

If eval is used inside a function all variables used in the eval function are local variables. If eval needs to access variables from the calling function they mus be declared as global.

def test(rvData, ssOperator, ssLimit)
{
   global data, i;

   data = rvData;
   ssString = sprintf("i = find(data %s %s)", ssOperator, ssLimit);
   eval(ssString);
   return i;
}

idx = test([1,2,3,4,5,6,7], "<=", "4.5")
if (idx[1] == 0) {
   MessageBoxError("No data found");
}
print idx   // prints 1,2,3,4

See also

Overview Programming, evalp, eval_file, evalp_file, load

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