I've been working through Japhy's regular expression draft and I'm confused by the operation of the @+ array. Rather than keep bugging Japhy, I thought I'd ask here!

The exercise from Chapter 3 asks for the contents fo the @- and @+ arrays after matching /(\w+)\W+(.*)/ on "where are you".

I would expect the contents to be [0, 0, 6] and [14, 5, 14] respectively, but instead the code 

#!/usr/bin/perl -w
use strict;
 
"where are you?" =~ /(\w+)\W+(.*)/;
print "\$1 is $1, \@- contains $-[0], $-[1], $-[2]\n";
print "\$2 is $2, \@+ contains $+[0], $+[1], $-[2]\n";

[download]

gives the result 

$1 is where, @- contains 0, 0, 6
$2 is are you?, @+ contains 14, 5, 6

[download]

Why does $+[2] contain 6 rather than 14?

In reply to Regex and @+ by claree0

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