Dear Masters,

My code below decompose a string into tuples (pair).
It already does the job, but to me it seems very slow and clumsy.

Is there a faster and more compact way to do it?
See the result below for answers: 
use Data::Dumper;

my $s1  = 'X -4 Y 3 Z';
my $s2  = 'W 1 X -4 Y 3 Z';
my $s3  = 'X 2 Y';
my $s4  = 'A -4 B -4 C -4 A -4 B';

decomp_str($s1);
decomp_str($s2);
decomp_str($s3);
decomp_str($s4);


sub decomp_str
{
    my  $s1 = shift;
    my @ar = split (" ",$s1);

    my @dcomp;

    push @dcomp, "$ar[0] $ar[1] $ar[2]";
    foreach  my $i ( 2 .. $#ar-1  )
    {
        if ($ar[$i] =~ /[A-Z]+/)
        {
            push @dcomp, "$ar[$i] $ar[$i+1] $ar[$i+2]";
        }
    }

    print Dumper \@dcomp;
    return \@dcomp;
}

[download]
The answers are: 
$VAR1 = ['X -4 Y','Y 3 Z'];          # For $s1
$VAR1 = ['W 1 X','X -4 Y','Y 3 Z'];  # For $s2
$VAR1 = ['X 2 Y'];                   # For $s3
$VAR1 = ['A -4 B','B -4 C','C -4 A','A -4 B'];  # For $s4

[download]


---
neversaint and everlastingly indebted.......

In reply to Decompose a String into Tuples (Faster and Compact Way) by neversaint

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