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 with a 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

_id-944627