| regex without named back references | |
| m/.*Copyright \(c\) ((\d{4})\s*[,-]\s*(\d{4})?)\,?(([^\r\<\>\,]*)(\<.*\>)?)\s*/i | |
| * Copyright (c) 2008, Example Company Inc. | |
| * Copyright (c) 2008, Joe Developer <joe.dev@example.org> | |
| * Copyright (c) 2008, 2009 Joe Developer <joe.dev@example.org> | |
| * Copyright (c) 2005-2009 Joe Developer <joe.dev@example.org> | |
| * Copyright (c) 2008, 2009 Other Examples Inc. | |
| * Copyright (c) 2008-2010 Example Company Inc. | |
| * Copyright (C) 2009-2010, Yet More Examples Ltd. | |