| protected validateVersion ( string $version ) : string | ||
| $version | string | The version that should be validated |
| return | string | The valid version |
protected function validateVersion($version)
{
// \A = start of string, \Z = end of string
// See: http://stackoverflow.com/a/34994075
$major_minor_patch_optional = '/\\A\\d\\.\\d\\.\\d{1,2}(?:\\.\\d)?\\Z/';
if (!preg_match($major_minor_patch_optional, $version)) {
throw new \UnexpectedValueException('The version constraint of ' . self::ACF_PRO_PACKAGE_NAME . ' should be exact (with 3 or 4 digits). ' . 'Invalid version string "' . $version . '"');
}
return $version;
}