Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much
 
PerlMonks  

Re^8: Bind zone file search

by ranceh (Initiate)
on Sep 26, 2012 at 19:33 UTC ( #995857=note: print w/ replies, xml ) Need Help??


in reply to Re^7: Bind zone file search
in thread Bind zone file search

Bingo

Thanks much for all your help today.


Comment on Re^8: Bind zone file search
Re^9: Bind zone file search
by Kenosis (Priest) on Sep 26, 2012 at 19:49 UTC

    You're very welcome, ranceh!

      I've been testing this for the last little bit and I think I found something else.

      It wont match more than one entry per zone file. But there are more stanzas in each zone file.

      When I googled this, I see that I should change the trailing end of a regex to /m for multiple matches, but when I do, I don't get any. What am I missing?

        The m modifier will not help here. I (incorrectly) assumed that there was only one zone stanza per file. Processing multiple zone stanzas requires globally matching and preventing part of the regex from being 'greedy.' Try the following line:

        $hash{$1} = $2 while $data =~ /zone\s+"([^"]+)".+?masters\s+{[\s#\/]*([a-zA-Z0-9.- +]+)[\s#\/;]*}/sg;

        You'll note that: while has replaced if, there's a ? right after the + preceding masters, and the globally modifier is used.

        while is used to process all matches; the ? prevents the regex from being 'greedy,' so it doesn't start the match at the beginning of a zone stanza and end the match with the last stanza.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://995857]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others rifling through the Monastery: (15)
As of 2015-07-02 13:35 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (40 votes), past polls