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grammar: Remove Ignore expression to avoid parsing ambiguity :'(

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John
2023-10-26 14:36:55 -05:00
parent b1f90ca4e9
commit 0445598ae8
4 changed files with 7 additions and 20 deletions
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grammar.ebnf
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@@ -15,14 +15,13 @@ Fn = "fn" Identifier Block ; (* TODO: params, return value*)
(* # Expressions *)
(* expression *)
Expr = Ignore ;
Expr = Assign ;
Block = '{' Expr '}' ;
Group = '(' Expr? ')' ;
Primary = Item | Identifier | Literal
| Block | Group | Branch ;
(* expression::math *)
Ignore = Assign (IgnoreOp Assign )* ;
Assign = Compare (AssignOp Compare)* ;
Compare = Range (CompareOp Range )* ;
Range = Logic (RangeOp Logic )* ;
@@ -34,7 +33,6 @@ Factor = Unary (FactorOp Unary )* ;
Unary = (UnaryOp)* Primary ;
(* expression::math::operator *)
IgnoreOp = ';' ;
AssignOp = '=' | "+=" | "-=" | "*=" | "/=" |
"&=" | "|=" | "^=" |"<<=" |">>=" ;
CompareOp = '<' | "<=" | "==" | "!=" | ">=" | '>' ;