/**
* <p>
* Derives the class name based on the <tt>$filename</tt> passed. This
* assumes the following: there is only one class per file, and that the
* class name follows Java's dot-path convention of naming files, namespace
* and all, according to their physical path with respect to the project's
* class path.
* </p>
* <p>
* The class name returned can be returned as a fully qualified class name
* if the <tt>$fullyQualified</tt> flag is set to <tt>true</tt> and a
* <tt>$baseDir</tt> given. If both of these conditions are met, this
* method will be able to reliably differentiate between a fully qualified
* PEAR class name, and one using the PHP native namespace separator.
* </p>
*
* 1. If an underscore exists as part of the filename, e.g. Foo_Bar.php
* do not bother with PEAR
* 2. If fully qualified is TRUE, we will always add namespace information.
* 3.
*
* @param string $filename the name of the file
* @param boolean $baseDir
* @param string $extension
*/
public static final function getClassFromFileName($filename, $baseDir = null, $extension = '.php')
{
$pos = 0;
$className = null;
if (!is_null($baseDir)) {
$pos = strpos($filename, $baseDir);
$filename = substr($filename, $pos + strlen($baseDir));
}
$_filename = str_replace('\\', DIRECTORY_SEPARATOR, $filename);
$_filename = str_replace('/', DIRECTORY_SEPARATOR, $_filename);
$extensionPattern = ClassUtils::escapePattern($extension);
$pattern = '/^(?P<className>[a-zA-Z0-9\\/\\\\_]+)([\\.]?' . $extensionPattern . '){1}$/';
if (preg_match($pattern, $_filename, $matches)) {
$className = ltrim($matches['className'], DIRECTORY_SEPARATOR);
}
$className = str_replace(DIRECTORY_SEPARATOR, self::PHP_NAMESPACE_SEPARATOR, $className);
return $className;
}
