function read_from_stream($stream, $pdf)
{
$tmp = fread($stream, 2);
if ($tmp != '<<') {
die("Error reading PDF: dictionary read error.");
}
$data = array();
while (true) {
$tok = read_non_whitespace($stream);
if ($tok == '>') {
fread($stream, 1);
break;
}
fseek($stream, -1, 1);
$key = read_object($stream, $pdf);
$tok = read_non_whitespace($stream);
fseek($stream, -1, 1);
$value = read_object($stream, $pdf);
if (in_array($key, array_keys($data))) {
die("Error reading PDF: multiple definitions in dictionary.");
}
$data[$key] = $value;
}
$pos = ftell($stream);
$s = read_non_whitespace($stream);
if ($s == 's' && fread($stream, 5) == 'tream') {
$eol = fread($stream, 1);
while ($eol == ' ') {
$eol = fread($stream, 1);
}
assert($eol == "\n" || $eol == "\r");
if ($eol == "\r") {
fread($stream, 1);
}
$length = $data['/Length'];
if (is_a($length, 'IndirectObject')) {
$t = ftell($stream);
$length = $pdf->get_object($length);
fseek($stream, $t, 0);
}
$data['__streamdata__'] = fread($stream, $length);
$e = read_non_whitespace($stream);
$ndstream = fread($stream, 8);
if ($e + $ndstream != "endstream") {
$pos = ftell($stream);
fseek($stream, -10, 1);
$end = fread($stream, 9);
if ($end == "endstream") {
$data['__streamdata__'] = substr($data['__streamdata__'], 0, -1);
} else {
fseek($stream, $pos, 0);
die("Error reading PDF: Unable to find 'endstream' marker after stream.");
}
}
} else {
fseek($stream, $pos, 0);
}
if (in_array('__streamdata__', array_keys($data))) {
return StreamObject::init_from_dict($data);
} else {
return $data;
}
}
public function __construct($uri)
{
parent::__construct(fopen($uri, 'r+'));
}
