Utils/Parser Generator/SOURCE/yysback.c

@@ -0,0 +1,27 @@
+/************************************************************
+yysback.c
+This file can be freely modified for the generation of
+custom code.
+
+Copyright (c) 1999 Bumble-Bee Software Ltd.
+************************************************************/
+
+#include "lex.h"
+
+#ifdef YYPROTOTYPE
+int YYCDECL yyback(YYCONST yymatch_t YYNEARFAR *p, int action)
+#else
+int YYCDECL yyback(p, action)
+YYCONST yymatch_t YYNEARFAR *p;
+int action;
+#endif
+{
+	yyassert(p != NULL);
+	yyassert(action < 0);
+	while (*p != 0) {
+		if (*p++ == action) {
+			return 1;
+		}
+	}
+	return 0;
+}