> If you mean that REXX doesn't distinguish between a null string and an > omitted string, that's true.
Small quibble -- Rexx does distinguish between a null string and an omitted string, to some extent, using the ARG(n, 'E') or ARG(n, 'O') forms of the ARG() function. For example, Arg(4, 'E') returns 0 if the 4th argument was omitted, but it returns 1 if it was specified as a null string. For parsing, of course, an omitted parameter is treated the same as a null string. The ARG() function with no parameters returns the number of the last explicitly specified argument (even if it was a null string). As a result, there is no way to tell how many extra commas with omitted parameters were specified. - mb
