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Make sure parser follows the correct scope and gets unset (#286)

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Co-authored-by: Nicola Asuni <nicolaasuni@users.noreply.github.com>
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Roy Van Ginneken 2021-03-27 09:43:35 +01:00 committed by GitHub
parent f9046e0e2e
commit c29df4acb4
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1 changed files with 12 additions and 8 deletions
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tcpdf.php
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@ -23028,22 +23028,26 @@ Putting 1 is equivalent to putting 0 and calling Ln() just after. Default value:
$f = ($this->h - $oy) * $this->k * (1 - $svgscale_y);
$this->_out(sprintf('%F %F %F %F %F %F cm', $svgscale_x, 0, 0, $svgscale_y, ($e + $svgoffset_x), ($f + $svgoffset_y)));
// creates a new XML parser to be used by the other XML functions
$this->parser = xml_parser_create('UTF-8');
$parser = xml_parser_create('UTF-8');
// the following function allows to use parser inside object
xml_set_object($this->parser, $this);
xml_set_object($parser, $this);
// disable case-folding for this XML parser
xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0);
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
// sets the element handler functions for the XML parser
xml_set_element_handler($this->parser, 'startSVGElementHandler', 'endSVGElementHandler');
xml_set_element_handler($parser, 'startSVGElementHandler', 'endSVGElementHandler');
// sets the character data handler function for the XML parser
xml_set_character_data_handler($this->parser, 'segSVGContentHandler');
xml_set_character_data_handler($parser, 'segSVGContentHandler');
// start parsing an XML document
if (!xml_parse($this->parser, $svgdata)) {
$error_message = sprintf('SVG Error: %s at line %d', xml_error_string(xml_get_error_code($this->parser)), xml_get_current_line_number($this->parser));
if (!xml_parse($parser, $svgdata)) {
$error_message = sprintf('SVG Error: %s at line %d', xml_error_string(xml_get_error_code($parser)), xml_get_current_line_number($parser));
$this->Error($error_message);
}
// free this XML parser
xml_parser_free($this->parser);
xml_parser_free($parser);
// >= PHP 7.0.0 "explicitly unset the reference to parser to avoid memory leaks"
unset($parser);
// restore previous graphic state
$this->_out($this->epsmarker.'Q');
// restore graphic vars