diff options
-rw-r--r-- | grammar-ll1.txt | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/grammar-ll1.txt b/grammar-ll1.txt index 23c1abf..4e97893 100644 --- a/grammar-ll1.txt +++ b/grammar-ll1.txt @@ -12,14 +12,16 @@ context-free syntax STATEMENT ::= ID ":=" EXP context-free syntax - EXP ::= EXP "+" PROD-EXP - EXP ::= PROD-EXP - PROD-EXP ::= EXP "*" SINGLE-EXP - PROD-EXP ::= SINGLE-EXP - SINGLE-EXP ::= "-" EXP - SINGLE-EXP ::= ID - SINGLE-EXP ::= NAT - SINGLE-EXP ::= "(" EXP ")" + EXP ::= PROD-EXP PLUS-EXP' + PLUS-EXP' ::= "+" PROD-EXP PLUS-EXP' + PLUS-EXP' ::= + PROD-EXP ::= SINGLE-EXP PROD-EXP' + PROD-EXP' ::= "*" SINGLE-EXP PROD-EXP' + PROD-EXP' ::= + SINGLE-EXP ::= "-" SINGLE-EXP + SINGLE-EXP ::= ID + SINGLE-EXP ::= NAT + SINGLE-EXP ::= "(" EXP ")" lexical syntax ID ::= [a-z] ID' |