Re: regular expression to get a decimal value

use warnings;
use strict;

my $line = '3p3V_MON Trip = 2.713V/2.681V';
if ($line =~ m{ 3p3V_MON \s+ Trip \s+ = \s+ ( [\d.]+ ) V/ ( [\d.]+ ) }
+x) {
    print "$1 $2\n";
}

__END__

2.713 2.681
[download]

Comment on Re: regular expression to get a decimal value Download Code

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Re^2: regular expression to get a decimal value by mark4444az (Sexton) on May 17, 2011 at 15:18 UTC
That works great!! But... How does the result get into the $1 and $2 strings? (novice here, just want to know how it works)	[reply]
Re^3: regular expression to get a decimal value by toolic (Bishop) on May 17, 2011 at 15:24 UTC
The 1st set of parens, (), captures to $1. The 2nd set captures to $2. See also: perlre perlrequick perldoc -v '$1' YAPE::Regex::Explain	[reply]
Re^4: regular expression to get a decimal value by mark4444az (Sexton) on May 17, 2011 at 18:21 UTC
Ah!! Thanks.	[reply]