On Sat, 2 Mar 2013, Wolfgang Zeikat wrote:
In an older episode, on 2013-03-02 02:40, John Hardin wrote:
>
> header __MANY_RECIPS ToCc =~ /(?:\@[^@]{5,30}){3}/
>
> Can someone explain the regex and why it fails to fire for 7 recipients?
(@, followed by 5-30 non-@ characters) repeated three times.
Does that mean the same sequence of (@, followed by 5-30 non-@ characters),
repeated 3 times?
The *same* sequence, no. Matching a repeating specific sequence would
involve capturing the match (using parens without the ?:) and
backreferences to refer to the capruted match later in the RE; it would
look something like:
/(\@[^@]{5,30})\1{2}/
--
John Hardin KA7OHZ http://www.impsec.org/~jhardin/
jhar...@impsec.org FALaholic #11174 pgpk -a jhar...@impsec.org
key: 0xB8732E79 -- 2D8C 34F4 6411 F507 136C AF76 D822 E6E6 B873 2E79
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-- Greg Andrews, about Microsoft's way to encode apostrophes
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