On Thu, 22 Jan 2004 09:20:05 -0500, Jeff Fulmer wrote:
> This function works perfectly well in a shell script, but it returns
> nothing when I employ it from acinclude.m4:
> AC_DEFUN([TOUPPER],[
> {
> echo $1 | sed -n '
> ...
> /[a-z]/! d
> ...
> '])
You forgot to properly quote the [a-z] range. m4 strips away the [ and ]
and leaves only 'a-z', which is not what you intended. You need to use
[[a-z]]. Also, the space before the 'd' in '! d' is non-portable. That will
cause an error in some sed programs. You should eliminate the space and use
'!d'.
-- ES
