/**
* Get the contents of this entry.
*
* @throws Exception Throws an Exception in case of errors.
*
* @return string
*/
public function getContents()
{
$cacheEnabled = static::getContentCacheEnabled();
if ($cacheEnabled && $this->cachedContents !== null) {
$result = $this->cachedContents;
} else {
$section = $this->chm->getSectionByIndex($this->contentSectionIndex);
if ($section === null) {
throw new Exception("The CHM file does not contain a data section with index {$this->contentSectionIndex}");
}
$result = $section->getContents($this->offset, $this->length);
$this->cachedContents = $cacheEnabled ? $result : null;
}
return $result;
}
