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Re: how to get output

by Util (Priest)
on Feb 18, 2014 at 05:28 UTC ( #1075263=note: print w/replies, xml ) Need Help??


in reply to how to get output

Change:
    my $out = $Ora_code =~ /ORA\-\d{5}/
to:
    my ($out) = $Ora_code =~ /(ORA\-\d{5})/
.

Adding the first set of parens causes $out to be treated as a one-element list. Without those parens, you have scalar context instead of list context; regex matches in scalar context return "truth" of the match instead of anything captured in the match. That Truth is represented as the "1" you are seeing.

Adding the second set of parens declares what data should be captured when the regex is evaluated during the match.

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Re^2: how to get output
by dbashyam (Novice) on Feb 18, 2014 at 05:38 UTC

    Hi, thanks for your reply. I did change now but still it prints output as '1', if you see my print statement I want to get the output as ORA-12505 in this scenario, but still not getting it right.

    #!/usr/bin/perl my $org = ""; $Ora_code = 'Failed tthe following error: ORA-12505, TNS:listener does + not currently know of SID given in connect descriptor'; print $Ora_code; if ( my ($out) = $Ora_code =~ /ORA\-\d{5}/) { print "inside\n"; print $out; } else { print "(no match)\n"; }

      As Util correctly mentioned, you need to enclose what you want captured within parentheses, so your regex should be:

      /(ORA\-\d{5})/

      Thanks for your help. I got it now

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