What should the substr ops produce if given a negative length argument? At the moment, the four-arg. form hands back an empty string, while the five-arg. form hands back a copy of the original string, ie:
set S0, "abcdefg" substr S1, S0, 0, -1 print S1 print "\n" and set S2, "" substr S3, S0, 0, -1, S2 print S3 print "\n" produce "" and "abcdefg" respectively. The former seems more correct, but I thought I'd throw this out for comment before hacking string.c Simon
