[Xsb-development] str_sub/3

[<ki...@cs...>]

Does anybody use it heavily?
The problem is that its 3d argument (the position of the match)
is inconsistent with other string functions substring and string_substitute.
str_sub/3 starts counting with 1 while others start with 0.
I'd like to fix this one way or another. I think programmers are more used
to count from 0, but it is open for debate.

I checked and see that XSB itself doesn't use the 3d arg of sub/3.
Among the packages, only xmc and flora2 use it.

We can include the incompatible change in the release notes. 

Opinions?


	--michael