Comma placement in function signatures

[Garados007]

If the function signature contains required and optional arguments, Igor Pro does allow the following four cases of comma placement:

Function Case1(string reqArg, [string optArg])

Function Case2(string reqArg[, string optArg])

Function Case3(string reqArg [string optArg])

Function Case4(string reqArg, [, string optArg])

I would allow only case 1 as good coding style and also looks cleaner.

Impact

I have seen case 2 and case 3 in many different repositories, so I wouldn't report this to WM for compatibility reasons.