parv wrote:
in message <3EB94C31(_dot_)3080704(_at_)bigfoot(_dot_)com>,
wrote Kevin Wu thusly...
:0
* $ ()\<$NOT_AB\$
DID_NOT_FIND_AB
:0 E
DID_FIND_AB
and the sample text is
xyz a
If we use your definition
NOT_AB = "([^a]|a[^b])"
then ... \<a[^b]$ is false so the condition is false
^^^^^^^^^^^^^^^
I am confused, why would regex "a[^b]$" not match text "xyz a", thus
turning condition to be true?
Loosely interpreted, \<a[^b]$ means match any two characters between a
word anchor and an end of line anchor with the first character being a
(or A, assuming the default of case-independent matches) and the second
character being any character except b (or B) or newline. In the sample
line, I'm assuming a newline immediately after "xyz a" so \<a[^b]$ does
not match because the sample ends with a single character between the
start of word anchor and the end of line anchor.
BTW, there is a mistake in the recipe. We have been discussing searching
the message body instead of the headers in this thread. So the recipe
should begin with
:0 B
or the condition should use the "B ??" construct.
Kevin
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