Junio C Hamano wrote: > Isn't -E a GNUism? > > At least, > > https://pubs.opengroup.org/onlinepubs/9699919799/utilities/sed.html > > does not seem to have it (we may need to fix t6030 to rid its only > existing use). I _thought_ that -r was the GNUism. The GNU sed-4.8 manpage says: -E, -r, --regexp-extended use extended regular expressions in the script (for portability use POSIX -E). That doesn't mean the man page is right, of course. :) https://www.austingroupbugs.net/view.php?id=528 suggests that -E has been adopted and, importanly, is more widely supported than -r (if we were considering using that rather than rewriting this to not use ERE syntax). MacOS in particular supports -E but not -r, according to that link. It seems like the documentation hasn't quite caught up to reality yet, perhaps? -- Todd
