On Wed, 20 Jul 2005, Ian Eiloart wrote:
>
> > if $message_headers does not contain "xxxx:" then ...
>
> Ooh, isn't this going to generate a number of false positives? Should we not
> match on the start of the line? Can we say this?:
>
> if $message_headers matches "^xxxx: "
If xxxx is pretty unique, the false positive risk is low. You would have
to say "(?m)^xxxx:" to enable "multiline mode" if you want to be
pedantic. Or use "\\N(^|\\n)xxxx:".
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Philip Hazel University of Cambridge Computing Service,
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