On Tue, 27 Nov 2001, Chris Bayliss wrote:
> I'm trying to put two conditions together with an and,
> without success. Both seem to work independently.
> I think I've made a simple mistake but seem to be
> going round in circles.
>
> Any suggestions about what my mistake is would be
> appreciated.
>
> condition = "${if and {{ eq {$header_X-bham-spamfiltered:}{yes}{0}{1}} \
> ${lookup {$local_part}lsearch{/usr/exim/tables/master/optin}{true}{false}}}}"
I split it down to analyse it like this:
${if and
{
{ eq {$header_X-bham-spamfiltered:}{yes}{0}{1}}
${lookup {$local_part}lsearch{/usr/exim/tables/master/optin}{true}{false}}}}
1st line: the start of the if and
2nd line: the { that encloses a sequence of conditions to be anded
3rd line: the first of the conditions, enclosed in {}
4th line: oops. there's your problem. there is no starting { for the
next condition
... and what's more, the next thing is not an expansion condition, it's a
lookup.
Hmm. Maybe "true" and "false" should be valid expansion conditions, but
at the moment they are not.
That is, you can't say ${if true {yes}{no}}.
The easiest way to rewrite this is to use the conditional property of
the lookup:
condition = ${lookup {$local_part}lsearch{/usr/exim/tables/master/optin}\
{\
${if eq {$header_X-bham-spamfiltered:}{yes}{yes}{no}}\
}\
{no}\
}
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
