function _getline(&$fh, $comments = '//')
{
$inline = _fgets($fh, 4096);
$pos = strpos($inline, $comments);
if ($pos !== FALSE) {
$line = substr($inline, 0, $pos);
}
return trim($inline);
}
function _getline($fh)
{
if (!$fh) {
return;
}
$line = _fgets($fh);
$pos = strpos($line, '//');
if ($pos !== FALSE) {
$tmp = strpos($line, '://');
if ($tmp === FALSE || $tmp != $pos - 1) {
$line = substr($line, 0, $pos);
}
}
$line = trim($line);
return $line;
}
/**
* Read xref-table
*
* @param array $result Array of xref-table
* @param integer $offset of xref-table
* @param integer $start start-position in xref-table
* @param integer $end end-position in xref-table
*/
function pdf_read_xref(&$result, $offset, $start = null, $end = null)
{
if (is_null($start) || is_null($end)) {
fseek($this->f, $o_pos = $offset);
$data = trim(fgets($this->f, 1024));
if (strlen($data) == 0) {
$data = trim(fgets($this->f, 1024));
}
if ($data !== 'xref') {
fseek($this->f, $o_pos);
$data = trim(_fgets($this->f, true));
if ($data !== 'xref') {
if (preg_match('/(.*xref)(.*)/m', $data, $m)) {
// xref 0 128 - in one line
fseek($this->f, $o_pos + strlen($m[1]));
} elseif (preg_match('/(x|r|e|f)+/', $data, $m)) {
// correct invalid xref-pointer
$tmpOffset = $offset - 4 + strlen($m[0]);
$this->pdf_read_xref($result, $tmpOffset, $start, $end);
return;
} else {
// mPDF 4.0
$this->success = false;
$this->errormsg = sprintf("Unable to find xref table - Maybe a Problem with 'auto_detect_line_endings'");
return;
}
}
}
$o_pos = ftell($this->f);
$data = explode(' ', trim(fgets($this->f, 1024)));
if (count($data) != 2) {
fseek($this->f, $o_pos);
$data = explode(' ', trim(_fgets($this->f, true)));
if (count($data) != 2) {
if (count($data) > 2) {
// no lineending
$n_pos = $o_pos + strlen($data[0]) + strlen($data[1]) + 2;
fseek($this->f, $n_pos);
} else {
// mPDF 4.0
$this->success = false;
$this->errormsg = sprintf("Unexpected header in xref table");
return;
}
}
}
$start = $data[0];
$end = $start + $data[1];
}
if (!isset($result['xref_location'])) {
$result['xref_location'] = $offset;
}
if (!isset($result['max_object']) || $end > $result['max_object']) {
$result['max_object'] = $end;
}
for (; $start < $end; $start++) {
$data = ltrim(fread($this->f, 20));
// Spezifications says: 20 bytes including newlines
$offset = substr($data, 0, 10);
$generation = substr($data, 11, 5);
if (!isset($result['xref'][$start][(int) $generation])) {
$result['xref'][$start][(int) $generation] = (int) $offset;
}
}
$o_pos = ftell($this->f);
$data = fgets($this->f, 1024);
if (strlen(trim($data)) == 0) {
$data = fgets($this->f, 1024);
}
if (preg_match("/trailer/", $data)) {
if (preg_match("/(.*trailer[ \n\r]*)/", $data, $m)) {
fseek($this->f, $o_pos + strlen($m[1]));
}
// mPDF 5.0 Removed pass by reference =&
$c = new pdf_context($this->f);
$trailer = $this->pdf_read_value($c);
if (isset($trailer[1]['/Prev'])) {
$this->pdf_read_xref($result, $trailer[1]['/Prev'][1]);
$result['trailer'][1] = array_merge($result['trailer'][1], $trailer[1]);
} else {
$result['trailer'] = $trailer;
}
} else {
$data = explode(' ', trim($data));
if (count($data) != 2) {
fseek($this->f, $o_pos);
$data = explode(' ', trim(_fgets($this->f, true)));
if (count($data) != 2) {
// mPDF 4.0
$this->success = false;
$this->errormsg = sprintf("Unexpected data in xref table");
return;
}
}
$this->pdf_read_xref($result, null, (int) $data[0], (int) $data[0] + (int) $data[1]);
}
}
/**
* Read xref-table
*
* @param array $result Array of xref-table
* @param integer $offset of xref-table
* @param integer $start start-position in xref-table
* @param integer $end end-position in xref-table
*/
function pdf_read_xref(&$result, $offset, $start = null, $end = null)
{
if (is_null($start) || is_null($end)) {
fseek($this->f, $o_pos = $offset);
$data = trim(fgets($this->f));
if ($data !== 'xref') {
fseek($this->f, $o_pos);
$data = trim(_fgets($this->f, true));
if ($data !== 'xref') {
$this->error("Unable to find xref table - Maybe a Problem with 'auto_detect_line_endings'");
}
}
$o_pos = ftell($this->f);
$data = explode(' ', trim(fgets($this->f)));
if (count($data) != 2) {
fseek($this->f, $o_pos);
$data = explode(' ', trim(_fgets($this->f, true)));
if (count($data) != 2) {
$this->error("Unexpected header in xref table");
}
}
$start = $data[0];
$end = $start + $data[1];
}
if (!isset($result['xref_location'])) {
$result['xref_location'] = $offset;
}
if (!isset($result['max_object']) || $end > $result['max_object']) {
$result['max_object'] = $end;
}
for (; $start < $end; $start++) {
$data = fread($this->f, 20);
// Spezifications says: 20 bytes including newlines
$offset = substr($data, 0, 10);
$generation = substr($data, 11, 5);
if (!isset($result['xref'][$start][(int) $generation])) {
$result['xref'][$start][(int) $generation] = (int) $offset;
}
}
$o_pos = ftell($this->f);
$data = fgets($this->f);
if (preg_match("/trailer/", $data)) {
if (preg_match("/(.*trailer[ \n\r]+)/", $data, $m)) {
fseek($this->f, $o_pos + strlen($m[1]));
}
$c =& new pdf_context($this->f);
$trailer = $this->pdf_read_value($c);
if (isset($trailer[1]['/Prev'])) {
$this->pdf_read_xref($result, $trailer[1]['/Prev'][1]);
$result['trailer'][1] = array_merge($result['trailer'][1], $trailer[1]);
} else {
$result['trailer'] = $trailer;
}
} else {
$data = explode(' ', trim($data));
if (count($data) != 2) {
fseek($this->f, $o_pos);
$data = explode(' ', trim(_fgets($this->f, true)));
if (count($data) != 2) {
$this->error("Unexpected data in xref table");
}
}
$this->pdf_read_xref($result, null, (int) $data[0], (int) $data[0] + (int) $data[1]);
}
}
