Re: m4 ebcdic patch

[Paul Eggert]

address@hidden (Michael Elizabeth Chastain) writes:

> Hi Paul,
> > This doesn't suffice, unfortunately.  POSIX requires that, in the
> > standard "C" (or "POSIX" locale), every portable character (not just
> > alphanumerics) must sort as if it were ASCII.
> 
> I confess that I didn't think about that.
> 
> However, I can't find anywhere where m4 sorts strings or compares
> them for "lesser" or "greater".

It's in the regex code that looks for patterns like '[a-z]'; it
compares for characters greater than or equal to 'a' and less than or
equal to 'z' in the collating sequence.