| Class | Description | 
|---|---|
| Option | 
 This class represents the options of the package rule. 
 | 
| PackageDescriptionFile | 
 This class represents the description files for the packages. 
 | 
| PackageRule | 
 This class represents the rules of the packages in one line of the package description file. 
 | 
| Path | 
 This class represents the data path. 
 |