core: lexer: Add operational tokens

Signed-off-by: Ian Moffett <ian@mirocom.org>

core/parser.c

@@ -39,6 +39,11 @@ static const char *toktab[] = {
     [TT_COMMA]   = qtok(","),
     [TT_COLON]   = qtok(":"),
     [TT_ARROW]   = qtok("->"),
+    [TT_PLUS]    = qtok("+"),
+    [TT_MINUS]   = qtok("-"),
+    [TT_SLASH]   = qtok("/"),
+    [TT_STAR]    = qtok("*"),
+    [TT_EQUALS]  = qtok("="),
     [TT_DEFINE]  = qtok("#define"),
     [TT_IFNDEF]  = qtok("#ifndef"),
     [TT_IFDEF]   = qtok("#ifdef"),