From 200095290423c2c1558438b6484ba8b746b816d0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Wilma=20Krutr=C3=B6k?= <wilkru-7@student.ltu.se>
Date: Fri, 6 Nov 2020 12:14:09 +0000
Subject: [PATCH] Update HOME_EXAM.md
---
HOME_EXAM.md | 18 +++++-------------
1 file changed, 5 insertions(+), 13 deletions(-)
diff --git a/HOME_EXAM.md b/HOME_EXAM.md
index 7c1c0d1..b0a11c2 100644
--- a/HOME_EXAM.md
+++ b/HOME_EXAM.md
@@ -86,7 +86,7 @@ The implemented langugage is desciribed usign EBNF grammar below. The language i
#### EBNF
```ebnf
Program
- :Programs
+ :Program*
|Function
|Decl
|Expr
@@ -95,8 +95,7 @@ Program
```ebnf
Stmt
- :Function
- |"if" Expr BlockExpr "else"? BlockExpr?
+ :"if" Expr BlockExpr ("else" BlockExpr)?
|"while" Expr BlockExpr
|Decl
|Expr
@@ -105,14 +104,14 @@ Stmt
```ebnf
Function
- :"fn" Id "(" Args ")" "->" Type BlockExpr
+ :"fn" Id "(" Arg* ")" "->" Type BlockExpr
|"fn" Id "()" "->" "()" BlockExpr
;
```
```ebnf
BlockExpr
- :"{" Stmts "}"
+ :"{" Stmt* "}"
;
```
@@ -134,18 +133,11 @@ Arg
Expr
:Expr ExprOp Factor
|Expr LogicOp Factor
- |Id "(" Exprs ")"
- |PrefixOp "(" Expr ")"
+ |Id "(" Expr* ")"
|Factor
;
```
-```ebnf
-Prefix
- :"-"
- ;
-```
-
```ebnf
ExprOp
:"+"
--
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