Even more interesting is Windows 1252 and ISO8859-15 where the former is a repertoire superset of the latter for the graphic characters, but not an encoding superset.
On Wed, Nov 10, 2010 at 5:53 PM, Kenneth Whistler <k...@sybase.com> wrote: > Mark Davis wrote: > > > What are also tricky are the 'almost' supersets, where there are only a > few > > different characters. Those definitely cause problems because the > difference > > in data is almost undetectable. > > For example, Mark is referring to cases such as ISO 8859-1 and 8859-15. > > Those share all the same encoded characters except those at > the code points 0xA4, 0xA6, 0xA8, 0xB4, 0xB8, and 0xBC..0xBE. > > So neither of the repertoires is a proper subset of the other, > but the two coded character sets share the vast majority > of their characters, including almost all of the common ones. > > --Ken > > >
