On 2013-01-02 15:34, Hamann, T.D. wrote:
[...] given a string:
i99o
where I want to replace the 'i' by a '1' and the 'o' by a '0' (zero), the
following regex fails:
s/(i)(\d\d)(o)/1$20/;
Since you are capturing 3 groups:
s/(i)([0-9]{2})(o)/$1$2$3/;
for the obvious reason that perl looks for a pattern match at bracket set #20,
which doesn't exist.
I can fix this by inserting a space in front of the zero, like this:
s/(i)(\d\d)(o)/1$2 0/;
and then using a second regular expression to remove the space, but that
somehow seems silly. Surely there is a quicker way to do this?
Regards,
Thomas Hamann
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http://learn.perl.org/
