Units ArraySegment

<?PHP
function writeArray($arrSeg)
{
    print "===\n";
    print get_class($arrSeg)."\n";

    print ":\tArrIdx\toffset\tvalue\n";
    print ":\t------\t------\t------\n";
    foreach($arrSeg as $k => $v)
        print ":\t".$arrSeg->peek($k)."\t".$k."\t".$v."\n";
}
function writeSeg($arrSeg)
{
    print "===\n";
    print get_class($arrSeg).sprintf(' [start-index: %d|length: %d|last-index: %d]'."\n",
        $arrSeg->getStart(),
        $arrSeg->getLength(),
        $arrSeg->getLast());

    print ":\tOffset\tSegIdx\tvalue\n";
    print ":\t------\t------\t------\n";

    foreach($arrSeg as $k => $v)
        print ":\t".$arrSeg->getReference()->peek($k)."\t".$k."\t".$v."\n";
}

$a = new TAssoc(["The" => "quick", "brown" => "fox", "jumps" => "over", "the" => "lazy", "dog" => '.']);

$b = new TAssocSegment($a, 6, 5);   //"the", "lazy", "dog"
$c = new TAssocSegment($a, NULL, 5);    //"The", "quick", "brown", "fox", "jumps"
$d = new TAssocSegment($a, 1, NULL);    //"brown", "fox", "jumps", "over", "the"
$e = new TAssocSegment($a, 2, 1);   //"brown", "fox", "jumps", "over", "the", "lazy", "dog"

$m = new TArray(["The", "quick", "brown", "fox", "jumps", "over", "the", "lazy", "dog", '.']);

$n = new TArraySegment($m, 6, 5);   //"the", "lazy", "dog"
$o = new TArraySegment($m, NULL, 5);    //"The", "quick", "brown", "fox", "jumps"
$p = new TArraySegment($m, 1, NULL);    //"brown", "fox", "jumps", "over", "the"
$q = new TArraySegment($m, 2, 1);   //"brown", "fox", "jumps", "over", "the", "lazy", "dog"

print "\n\nDefaults\n";
writeArray($a); //"The", "quick", "brown", "fox", "jumps", "over", "the", "lazy", "dog"
writeArray($m);

print "\n\nTAssocSegment\n";
writeSeg($b);
writeSeg($c);
writeSeg($d);
writeSeg($e);   //"the", "lazy", "dog"

print "\n\nTArraySegment\n";
writeSeg($n);
writeSeg($o);
writeSeg($p);
writeSeg($q);

?>


Defaults
===
ILLI\System\Collection\TAssoc
:   ArrIdx  offset  value
:   ------  ------  ------
:   0   The quick
:   1   brown   fox
:   2   jumps   over
:   3   the lazy
:   4   dog .
===
ILLI\System\Collection\TArray
:   ArrIdx  offset  value
:   ------  ------  ------
:   0   0   The
:   1   1   quick
:   2   2   brown
:   3   3   fox
:   4   4   jumps
:   5   5   over
:   6   6   the
:   7   7   lazy
:   8   8   dog
:   9   9   .


TAssocSegment
===
ILLI\System\Collection\TAssocSegment [start-index: 4|length: 5|last-index: 4]
:   Offset  SegIdx  value
:   ------  ------  ------
:   dog 4   dog
===
ILLI\System\Collection\TAssocSegment [start-index: 0|length: 5|last-index: 4]
:   Offset  SegIdx  value
:   ------  ------  ------
:   The 0   The
:   brown   1   brown
:   jumps   2   jumps
:   the 3   the
:   dog 4   dog
===
ILLI\System\Collection\TAssocSegment [start-index: 1|length: 0|last-index: 4]
:   Offset  SegIdx  value
:   ------  ------  ------
:   brown   1   brown
:   jumps   2   jumps
:   the 3   the
:   dog 4   dog
===
ILLI\System\Collection\TAssocSegment [start-index: 2|length: 1|last-index: 2]
:   Offset  SegIdx  value
:   ------  ------  ------
:   jumps   2   jumps
:   the 3   the
:   dog 4   dog


TArraySegment
===
ILLI\System\Collection\TArraySegment [start-index: 6|length: 5|last-index: 9]
:   Offset  SegIdx  value
:   ------  ------  ------
:   6   6   the
:   7   7   lazy
:   8   8   dog
:   9   9   .
===
ILLI\System\Collection\TArraySegment [start-index: 0|length: 5|last-index: 4]
:   Offset  SegIdx  value
:   ------  ------  ------
:   0   0   The
:   1   1   quick
:   2   2   brown
:   3   3   fox
:   4   4   jumps
===
ILLI\System\Collection\TArraySegment [start-index: 1|length: 0|last-index: 9]
:   Offset  SegIdx  value
:   ------  ------  ------
:   1   1   quick
:   2   2   brown
:   3   3   fox
:   4   4   jumps
:   5   5   over
:   6   6   the
:   7   7   lazy
:   8   8   dog
:   9   9   .
===
ILLI\System\Collection\TArraySegment [start-index: 2|length: 1|last-index: 2]
:   Offset  SegIdx  value
:   ------  ------  ------
:   2   2   brown