~defunc()

It creates a new function (or macro). It takes two arguments:

The name of the macro
The code for this macro

Example :

~defunc('function',~get('value'))

~sparam()

In a macro ~sparam() retrieves parameters given in the call. The only parameter is the number of the parameter to get from the call.

Example :

~defunc('inrange',~and(~sparam(1)>~sparam(2),~sparam(1)<~sparam(3)))


~inrange(3,1,5)

This function tests if the first parameter is between the second and the third. The returned value is boolean (0 for FALSE, 1 for TRUE)

In this example ~sparam(1) returns 3, ~sparam(2) returns 1 and ~sparam(3) 5
Thus the result is : 1 (TRUE)