diff --git a/spf.lark b/spf.lark
index abf8396..cc39036 100644
--- a/spf.lark
+++ b/spf.lark
@@ -1 +1,29 @@
-// Contient la gramaire de spf
+start: (instruction)* TERMINAL
+
+instruction: KEYWORD TERMINAL
+		   | declaration TERMINAL
+
+declaration: TYPE NOM
+		   | TYPE NOM "=" expression
+
+expression: literal
+		  | list
+		  | range
+		  | expression operator expression
+		  | operator expression
+
+controls: test
+		| loop
+
+test: "si" expression "alors" "{" instruction* "}"
+
+loop: "si" expression "alors" { (instruction)* }
+
+COMMENT: "#" /[^\n]/
+%ignore COMMENT
+
+TERMINAL: ";"
+
+VARIABLE: /([a-z]|[A-Z]|_)+[a-z]|[A-Z]|[0-9]_)+/ // TODO: ajouter accents
+
+TYPE: "booléen" | "entier" | "texte" | "liste"
diff --git a/spf.py b/spf.py
index ecb0e34..6780ae8 100755
--- a/spf.py
+++ b/spf.py
@@ -20,10 +20,10 @@ def main():
     args = parser.parse_args()
 
     if args.dump:
-        print("Dump activated", file=sys.stderr)
+        print("Dump activated (TODO)", file=sys.stderr)
 
     if args.trace:
-        print("Trace activated", file=sys.stderr)
+        print("Trace activated (TODO)", file=sys.stderr)
 
 
 if __name__ == "__main__":