From 29f6828b0e5e090ea22821bcd2a0e4285be19d14 Mon Sep 17 00:00:00 2001
From: p9malino26 <pm3g19@soton.ac.uk>
Date: Sat, 10 Apr 2021 11:28:46 +0100
Subject: [PATCH] Created grammar for simple version of the language
---
Lexer.x | 4 ++++
Parser.y | 28 ++++++++++++++++++++++++++++
2 files changed, 32 insertions(+)
create mode 100644 Lexer.x
create mode 100644 Parser.y
diff --git a/Lexer.x b/Lexer.x
new file mode 100644
index 0000000..63e7418
--- /dev/null
+++ b/Lexer.x
@@ -0,0 +1,4 @@
+--tokens
+
+.in
+.out
\ No newline at end of file
diff --git a/Parser.y b/Parser.y
new file mode 100644
index 0000000..112432f
--- /dev/null
+++ b/Parser.y
@@ -0,0 +1,28 @@
+Prog : .in SetNames .out SetFuncCalls
+
+SetNames : SetName
+ | SetName, SetNames
+
+VarNames : VarName
+ | VarName, VarNames
+
+SetSetFuncCalls : SetFuncCall {[SetFuncCall]}
+ | SetFuncCall; SetFuncCalls {SetFuncCall:SetFuncCalls}
+
+SetFuncCall : filter '['SetName']' (Func)
+
+Func : \'('VarNames')' -> Expr
+\(r) -> r[1] == "hello"
+
+Expr : Expr == Expr
+ | Expr'['Nat']'
+ | String
+ | VarName
+ | Record
+ | true
+ | false
+
+
+Record : '['Exprs']'
+Exprs : Expr
+ | Expr','Exprs
--
GitLab