23. The system of claim 17 , wherein the template string includes a name portion symbol, the name portion symbol identifying a portion of the main file name, the matching module further, based on the determination, selectively to generate the second pattern string corresponding to the template string, the name portion symbol in the template string being replaced in the second pattern string by the portion of the main file name identified by the name portion symbol.
23. The system of claim 17 , wherein the template string includes a name portion symbol, the name portion symbol identifying a portion of the main file name, the matching module further, based on the determination, selectively to generate the second pattern string corresponding to the template string, the name portion symbol in the template string being replaced in the second pattern string by the portion of the main file name identified by the name portion symbol. 24. The system of claim 23 , wherein the name portion symbol identifies a portion of the main file name, the portion selected from the group including a base portion of the main file name, an extension of the main file name, a full path name of the main file name, and a directory path portion of the main file name.