On Wed, May 26, 1999 at 12:19:24AM -0500, Philip Guenther wrote:
Alternatively you can do the eval in the condition itself:
JFBODYCHK = `cat $JFDIR/jf-bodychk`
:0 HB
* $ $ ${JFBODYCHK:-\$JFNOMATCH}
* < 6000
{
:0 B
* $ $ ()\/($JFBODYCHK)
{ JFMATCH="$JFSEC: $MATCH" INCLUDERC=$JFDIR/junkfilter.match }
}
This worked beautifully for me. Thanks, Philip. I never realized
that multiple levels of expansion could be done with multiple $!
Finally, I'll note that the above nested recipe could be done as a
single recipe by using the "B ??" syntax on the third condition:
Since the gain in efficiency is negligible, you should only make that
change if you find it as easy or easier to read.
I find it more difficult to read, although that may pass as I become
more familiar with the "* $ $ $ $ $" notation. Hopefully I'll never
have to go five levels deep.
Greg
--
Gregory S. Sutter "How do I read this file?"
mailto:gsutter(_at_)pobox(_dot_)com "You uudecode it."
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