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On 03/10/12 16:36, [email protected] wrote:
>> "By perl style regular expressions" I was referring to PCRE.
>> Yes, Perl does variable interpolation before running the regex,
>> but then Exim does string expansion before running the regex as
>> well.
>
> Proof of the above:
>
> mike@ung:~$ exim -be '${if
> match{4.76}{^\\Q$version_number\\E\$}{true}{false}}' true
> mike@ung:~$ exim -be '${if
> match{4X76}{^\\Q$version_number\\E\$}{true}{false}}' false
> mike@ung:~$
For the sake of completeness, you *can* disable expansion in regular
expressions in Exim, by wrapping the whole thing in \N's:
mike@ung:~$ exim -be '${if match{4.76}{\N^\Q4.76\E$\N}{true}{false}}'
true
mike@ung:~$ exim -be '${if match{4X76}{\N^\Q4.76\E$\N}{true}{false}}'
false
mike@ung:~$
So, while this works:
${if match {$h_X-UoP-Loop:}{^\\Q$sender_address \\E}}
This wouldn't:
${if match {$h_X-UoP-Loop:}{\N^\Q$sender_address \E\N}}
- --
Mike Cardwell https://grepular.com/ http://cardwellit.com/
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