public function resolveFileName()
{
$path = $this->path;
if (!in_array($this->baseDirectory, $this->path)) {
$path[] = $this->baseDirectory;
}
if ($this->string === null) {
if ($this->file === null || $this->file === self::STRING_PSEUDO_FILE) {
throw new ParserException($this, "either string or file has to be supplied to context");
}
$fileName = null;
if ($this->file[0] === "/") {
$fileName = $this->file;
} elseif ($this->file[0] === ".") {
if (!$this->parent) {
throw new ParserException($this, "Relative file '{$this->file}' and no parent context.");
}
$fileName = dirname($this->parent->resolveFileName()) . "/" . $this->file;
} else {
foreach ($path as $directory) {
if (file_exists($directory . "/" . $this->file)) {
$fileName = $directory . "/" . $this->file;
break;
}
}
if ($fileName === null) {
throw new ParserException($this, "File '{$this->file}' was not found in path.");
}
}
$this->fileName = $fileName;
if (!in_array($this->fileName, $this->allFileNames)) {
$this->allFileNames[] = $this->fileName;
}
}
if ($this->file === null) {
$this->file = $this->fileName = self::STRING_PSEUDO_FILE;
}
return $this->fileName;
}
