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Import once #435

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6 changes: 6 additions & 0 deletions lessc.inc.php
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,7 @@ class lessc {
static protected $TRUE = array("keyword", "true");
static protected $FALSE = array("keyword", "false");

protected $allParsedFiles = array();
protected $libFunctions = array();
protected $registeredVars = array();
protected $preserveComments = false;
Expand Down Expand Up @@ -108,6 +109,11 @@ protected function tryImport($importPath, $parentBlock, $out) {
if ($this->importDisabled) {
return array(false, "/* import disabled */");
}

// import once
if(array_key_exists(realpath($realPath), $this->allParsedFiles())) {
return array(false, '');
}

$this->addParsedFile($realPath);
$parser = $this->makeParser($realPath);
Expand Down