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conlang: Split assignment into plain Assign and assign-with-Modify

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John
2024-05-19 14:31:30 -05:00
parent 8d8928b8a8
commit f330a7eaa5
8 changed files with 140 additions and 78 deletions
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grammar.ebnf
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@@ -82,7 +82,8 @@ Bool = "true" | "false" ;
Expr = Assign ;
Assign = Path (AssignKind Assign ) | Compare ;
Assign = Path (AssignKind Assign ) | Modify ;
Modify = Path (ModifyKind Assign ) | Compare ;
(* Binary = Compare | Range | Logic | Bitwise | Shift | Factor | Term ; *)
Compare = Range (CompareOp Range )* ;
@@ -131,7 +132,8 @@ Break = "break" Expr ;
Return = "return" Expr ;
Continue = "continue" ;
AssignKind = '=' | '+=' | '-=' | '*=' | '/=' | '&=' | '|=' | '^=' |'<<=' |'>>=' ;
AssignKind = '=' ;
ModifyKind = '+=' | '-=' | '*=' | '/=' | '&=' | '|=' | '^=' |'<<=' |'>>=' ;
CompareOp = '<' | '<=' | '==' | '!=' | '>=' | '>' ;
RangeOp = '..' | '..=' ;