Reference Designators
Reference designators must begin with letters and have incremental numbers next to the letters.
The following are acceptable:
 
- U1
 - U1-2
 - U1-U2
 - U1,U2
 - RES1
 - RES1-2
 - RES1-RES2
 - RES1,RES2
 - U1,U3-U5,U10,J7
 - U 5
 
The following are not acceptable:
- 1F6-1F9
 - RES
 
Here is sample of the reference designators and how they will be interpreted by the parser:
| --  XL Values | : Parsed Values | 
| -- 1. a1-10   | : Range a1 through a10 | 
| -- 2. d5-7  | : Range d5 through d7 | 
| -- 3. abd9-15       | : Range abd9 through abd15 | 
| -- 4. c50-10 | : Single value c50-10 | 
| -- 5. c50-1   | : Single value c50-1 | 
| -- 6. 10rr50-10  | : Single value 10rr50-10 | 
| -- 7. b-10   | : Single value b-10     | 
| -- 8. cdf-jhsss   | : Single value cdf-jhsss | 
| -- 9. dd1-msdhe       | : Single value dd1-msdhe | 
| -- 10. egh2-xx6     | : Single value egh2-xx6 | 
| -- 11. egh2-egh12   | : Range egh2 through egh12 | 
| -- 12. ff4-8jj     | : Single value ff4-8jj | 
| -- 13. asd122   | : Single value asd122 | 
| -- 14. U 50     | : Single value U 50 | 
| -- 15. For U9     | : Single value For U9 | 
| -- 16. 1-12         | : Single value 1-12 | 
| -- 17. 1a2-1a12   | : Range 1a2 through 1a12   | 
| -- 18. 12a1-111292aaa       | : Single value 12a1-111292aaa | 
| -- 19. 1f1-10   | : Range 1f1 through 1f10  |