Friday afternoon blag fest
Philippe Bruhat (BooK)
philippe.bruhat at free.fr
Fri Sep 21 13:33:19 BST 2007
On Fri, Sep 21, 2007 at 01:11:53PM +0100, Chris Jack wrote:
> What's the longest regular expression anyone's ever written? Choose
> your own criteria for longest (e.g. #lines, #characters) although I
> suspect pitifully slow might get less respect from the audience....
>
I wrote a 10k one once, although of course I didn't write it. I just had
a program load the strings I wanted to find, quote stuff and replace ' '
with '\s*', and then join the whole bunch with '|'. The resulting regexp
length was over 10000, though I don't remember the details.
I was looking for the original emails to add date attribution to the
Paris Perl Mongers $A++ page. That means grepping for mildly obfuscated
code while allowing for slight variations.
Nowadays we just add the dates at the same time we add the code, which
is much easier. :-)
--
Philippe Bruhat (BooK)
To flaunt your strength is to make it your weakness.
(Moral from Groo The Wanderer #25 (Epic))
More information about the london.pm
mailing list