Hi Jonathan,
>>I did try to use "-l ?[[:alnum:]]+" but Solaris sed only supports BREs
>>(as POSIX requires) and there doesn't seem to be an equivalent of the
>>GNU sed -E option to use EREs.
>
> POSIX agreed to add the -E option 8 years ago but that hasn't made it
> into the standard yet (because we're still on POSIX 2011+TC1+TC2 and
> presumably have to wait for the next revision).
and even so we still do support Solaris 11.3 from 2015 which certainly
won't get such a change.
Rainer
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Rainer Orth, Center for Biotechnology, Bielefeld University
