author | Eugen Sawin <sawine@me73.com> |
Wed, 30 Mar 2011 15:52:38 +0200 | |
changeset 17 | a25ebfdd39f7 |
permissions | -rw-r--r-- |
sawine@1 | 1 |
Produktion = produktionsname "=" Ausdruck "." |
sawine@1 | 2 |
Ausdruck = Alternative { "|" Alternative } |
sawine@1 | 3 |
Alternative = Term { Term } |
sawine@1 | 4 |
Term = produktionsname | token [ "..." token ] |
sawine@1 | 5 |
| Gruppe | Option | Wiederholung |
sawine@1 | 6 |
Gruppe = "(" Ausdruck ")" |
sawine@1 | 7 |
Option = "[" Ausdruck "]" |
sawine@1 | 8 |
Wiederholung = "{" Ausdruck "}" |
sawine@1 | 9 |
|
sawine@1 | 10 |
| Alternation |
sawine@1 | 11 |
() Gruppierung |
sawine@1 | 12 |
[] Option (0 oder 1 mal) |
sawine@1 | 13 |
{} Wiederholung (0 bis n mal) |