function read_object($stream, $pdf)
{
$tok = fread($stream, 1);
fseek($stream, -1, 1);
if ($tok == 't' || $tok == 'f') {
return BooleanObject::read_from_stream($stream);
} else {
if ($tok == '(') {
return read_string_from_stream($stream);
} else {
if ($tok == '/') {
return NameObject::read_from_stream($stream);
} else {
if ($tok == '[') {
return ListObject::read_from_stream($stream, $pdf);
} else {
if ($tok == 'n') {
return NullObject::read_from_stream($stream);
} else {
if ($tok == '<') {
$peek = fread($stream, 2);
fseek($stream, -2, 1);
if ($peek == '<<') {
$r = DictionaryObject::read_from_stream($stream, $pdf);
return $r;
} else {
return read_hex_string_from_stream($stream);
}
} else {
if ($tok == '%') {
while ($tok != "\r" && $tok != "\n") {
$tok = fread($stream, 1);
}
$tok = read_non_whitespace($stream);
fseek($stream, -1, 1);
return read_object($stream, $pdf);
} else {
if ($tok == '+' || $tok == '-') {
return NumberObject::read_from_stream($stream);
}
$peek = fread($stream, 20);
fseek($stream, -strlen($peek), 1);
if (preg_match("/^(\\d+)\\s(\\d+)\\sR[^a-zA-Z]/", $peek)) {
return IndirectObject::read_from_stream($stream, $pdf);
} else {
return NumberObject::read_from_stream($stream);
}
}
}
}
}
}
}
}
}
function get_object($indirect_ref)
{
$retval = $this->resolved_objects[$indirect_ref->generation];
if ($retval) {
$retval = $retval[$indirect_ref->idnum];
if ($retval) {
return $retval;
}
}
if ($indirect_ref->generation === 0 and in_array($indirect_ref->idnum, array_keys($this->xref_obj_stm))) {
$stm_num = $this->xref_obj_stm[$indirect_ref->idnum][0];
$idx = $this->xref_obj_stm[$indirect_ref->idnum][1];
$o = new IndirectObject($stm_num, 0, $this);
$obj_stm = $o->get_object();
$stream_data = tmpfile();
fwrite($stream_data, $obj_stm->get_data());
fseek($stream_data, 0);
# !!!
fseek($stream_data, 0);
for ($i = 0; $i < $obj_stm->data['/N']; $i++) {
$obj_num = NumberObject::read_from_stream($stream_data);
read_non_whitespace($stream_data);
fseek($stream_data, -1, 1);
$offset = NumberObject::read_from_stream($stream_data);
read_non_whitespace($stream_data);
fseek($stream_data, -1, 1);
$t = ftell($stream_data);
fseek($stream_data, $obj_stm->data['/First'] + $offset, 0);
$obj = read_object($stream_data, $this);
$this->resolved_objects[0][$obj_num] = $obj;
fseek($stream_data, $t, 0);
}
fclose($stream_data);
return $this->resolved_objects[0][$indirect_ref->idnum];
}
$start = $this->xref[$indirect_ref->generation][$indirect_ref->idnum];
fseek($this->stream, $start, 0);
$header = $this->read_object_header($this->stream);
$idnum = $header[0];
$generation = $header[1];
$retval = read_object($this->stream, $this);
$this->cache_indirect_object($generation, $idnum, $retval);
return $retval;
}