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Re^3: Split() first 3 elements of @array

by ig (Vicar)
on Aug 28, 2012 at 20:40 UTC ( #990331=note: print w/ replies, xml ) Need Help??


in reply to Re^2: Split() first 3 elements of @array
in thread Split() first 3 elements of @array

I cannot sxtract the IP address for the switch for some reason

The third line, with the IP address is indented: there is some whitespace at the beginning of the line, but your regular expression is looking for 'IP' at the beginning of the line: /^IP/. Change that to accept some leading whitespace and you should get a match: /^\s*IP/


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Re^4: Split() first 3 elements of @array
by Kenosis (Priest) on Aug 28, 2012 at 20:48 UTC
    use Modern::Perl; use Modern::Perl; say ' IP address: 10.10.10.10' =~ /IP\s+address:\s+([^\s]+)/; say 'IP address: 10.10.10.10' =~ /IP\s+address:\s+([^\s]+)/; say ' IP address: 10.10.10.10' =~ /^\s*IP\s+address:\s+([^\s]+)/; say 'IP address: 10.10.10.10' =~ /^\s*IP\s+address:\s+([^\s]+)/;

    Output:

    10.10.10.10 10.10.10.10 10.10.10.10 10.10.10.10

    Update: Ah! hmb104 was referring to using split, not the regex (which isn't attempting to match at the beginning of a line and is fully anchored w/o mentioning the spaces before "IP address:").

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