*** Regular expression operations and buffer string searches now<BR>
convert the search pattern to multibyte or unibyte to accord with the
buffer or string being searched.
<P>
One consequence is that you cannot always use \200-\377 inside of
[...] to match all non-ASCII characters.  This does still work when
searching or matching a unibyte buffer or string, but not when
searching or matching a multibyte string.  Unfortunately, there is no
obvious choice of syntax to use within [...] for that job.  But, what
you want is just to match all non-ASCII characters, the regular
expression [^\0-\177] works for it.
<P>