Amibroker Function Library Extensions

AFL Programming
#1

While Amibroker’s function library is extensive, I believe there is still room for some function additions. I am wondering if there is a separate Tag or another website where I much find a library of string, math, file and other utility functions.

As an example, I extended the IsNull function to meet my own need, as follows:

//***************************************************************
function IsBlank(variantValue) // Returns true if string, array or number is empty
//***************************************************************
{
result = False; 
variantType = typeof(variantValue);
switch( variantType )
{
  case "string":
        result = IIf(variantValue == "",True, False);
        break;

  case "array":
        result = IsNull(variantValue);
        break;
        
  case "number":
		result = IsNull(variantValue);
        break;
        
  default:
        result = False;
        break;
}
return result;
#2

At least for arrays, it won’t return simple true/false value but ARRAY of true/false values because IsNull applied to arrays returns ARRAY (each bar is checked for nulls separately)

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