Check In tool source code based on Build tool project revision r1655.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8964 6f19259b-4bc3-4df7-8a09-765794883524

BaseTools/Source/C/VfrCompile/Pccts/support/rexpr/rexpr.h

@@ -0,0 +1,30 @@
+#define Atom	256		/* token Atom (an impossible char value) */
+#define Epsilon	257		/* epsilon arc (an impossible char value) */
+
+/* track field must be same for all node types */
+typedef struct _a {
+					struct _a *track;	/* track mem allocation */
+					int label;
+					struct _a *next;
+					struct _n *target;
+				} Arc, *ArcPtr;
+
+typedef struct _n {
+					struct _n *track;
+					ArcPtr arcs, arctail;
+				} Node, *NodePtr;
+
+typedef struct	{
+					NodePtr left,
+						 	right;
+				} Graph, *GraphPtr;
+
+#ifdef __USE_PROTOS
+int rexpr( char *expr, char *s );
+int match( NodePtr automaton, char *s );
+#else
+int rexpr();
+int match();
+#endif
+
+