lexer: Add token for ':'

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

core/lexer.c

@@ -255,6 +255,10 @@ lexer_scan(struct rifle_state *state, struct token *res)
         res->type = TT_SLASH;
         res->c = c;
         return 0;
+    case ':':
+        res->type = TT_COLON;
+        res->c = c;
+        return 0;
     default:
         if (lexer_scan_ident(state, c, res) == 0) {
             lexer_check_kw(state, res);

core/parser.c

@@ -40,6 +40,7 @@ static const char *toktab[] = {
     [TT_MINUS]  = qtok("-"),
     [TT_STAR]   = qtok("*"),
     [TT_SLASH]  = qtok("/"),
+    [TT_COLON]  = qtok(":"),
     [TT_F]      = qtok(".f"),
     [TT_EXTERN] = qtok(".extern")
 };