lexer: Add tokens for LPAREN + RPAREN

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

core/lexer.c

@@ -259,6 +259,14 @@ lexer_scan(struct rifle_state *state, struct token *res)
         res->type = TT_COLON;
         res->c = c;
         return 0;
+    case '(':
+        res->type = TT_LPAREN;
+        res->c = c;
+        return 0;
+    case ')':
+        res->type = TT_RPAREN;
+        res->c = c;
+        return 0;
     default:
         if (lexer_scan_ident(state, c, res) == 0) {
             lexer_check_kw(state, res);

core/parser.c

@@ -41,6 +41,8 @@ static const char *toktab[] = {
     [TT_STAR]   = qtok("*"),
     [TT_SLASH]  = qtok("/"),
     [TT_COLON]  = qtok(":"),
+    [TT_LPAREN] = qtok("("),
+    [TT_RPAREN] = qtok(")"),
     [TT_F]      = qtok(".f"),
     [TT_EXTERN] = qtok(".extern")
 };

inc/rifle/token.h

@@ -12,6 +12,8 @@ typedef enum {
     TT_STAR,    /* '*' */
     TT_SLASH,   /* '/' */
     TT_COLON,   /* ':' */
+    TT_LPAREN,  /* '(' */
+    TT_RPAREN,  /* ')' */
     TT_F,       /* '.f' */
     TT_EXTERN,  /* '.extern' */
 } tt_t;