public function getComment()
{
$pos = 0;
$len = BinStringStatic::_strlen($this->dataSubBlocks);
$comment = "";
while ($pos < $len && ord($this->dataSubBlocks[$pos]) > 0) {
$comment .= BinStringStatic::_substr($this->dataSubBlocks, $pos + 1, ord($this->dataSubBlocks[$pos]));
$pos += 1 + ord($this->dataSubBlocks[$pos]);
}
return $comment;
}
/**
* @param $doc
*
* @return string
*/
public static function removeComments($doc)
{
$doc = preg_replace('~--\\s+>~', '-->', $doc);
$doc = preg_replace('~<\\s*!\\s*--~', '<!--', $doc);
$cPos = BinStringStatic::_strpos($doc, "<!--");
if ($cPos !== false) {
$startCount = substr_count($doc, "<!--");
$endCount = substr_count($doc, "-->");
$lastCPos = -1;
while ($cPos !== false && $lastCPos != $cPos) {
$lastCPos = $cPos;
$lastEPos = $cPos;
$ePos = $cPos;
do {
$ePos = BinStringStatic::_strpos($doc, "-->", $ePos + 1);
if ($ePos !== false) {
$lastEPos = $ePos;
$comment = BinStringStatic::_substr($doc, $cPos, $lastEPos + 3 - $cPos);
$startCount = substr_count($comment, "<!--");
$endCount = substr_count($comment, "-->");
} elseif ($lastEPos == $cPos) {
$lastEPos = BinStringStatic::_strlen($doc) - 3;
}
} while ($startCount != $endCount && $ePos !== false);
$doc = substr_replace($doc, "", $cPos, $lastEPos + 3 - $cPos);
$cPos = BinStringStatic::_strpos($doc, "<!--");
}
}
// print "<pre>\n" . htmlentities($doc) . "\n</pre>\n";
return $doc;
}
/**
* @param LogicalScreenDescriptor $lsd
*/
public static function dumpLogicalScreenDescriptor($lsd)
{
echo "lsdScreenWidth......................: " . $lsd->screenWidth . "\n";
echo "lsdScreenHeight.....................: " . $lsd->screenHeight . "\n";
echo "lsdPackedFields.....................: \n";
echo " - lsdGlobalColorTable.............: " . self::echoYN($lsd->colorTableFlag) . "\n";
echo " - lsdColorResolution..............: " . $lsd->colorResolution . "\n";
echo " - lsdSortFlag.....................: " . self::echoYN($lsd->sortFlag) . "\n";
echo " - lsdGlobalColorTableSize.........: " . $lsd->colorTableSize . "\n";
echo "lsdBGColorIndex.....................: " . $lsd->bgColorIndex;
echo " (0x";
echo bin2hex(BinStringStatic::_substr($lsd->colorTable, $lsd->bgColorIndex * 3, 3));
echo " (rrggbb))\n";
echo "lsdPixelAspectRatio.................: " . $lsd->pixelAspectRatio . "\n";
echo "\n";
echo "Global Color Table..................: ";
if ($lsd->colorTableFlag && $lsd->colorTableSize > 0) {
echo "GCT present.\n";
if ($lsd->colorTableSize < 16) {
echo "Global Color Table content..........: ";
echo bin2hex($lsd->colorTable) . "\n";
}
} else {
echo "No GCT.\n";
}
}
