X-Git-Url: https://pd.if.org/git/?p=pccts;a=blobdiff_plain;f=support%2Frexpr%2Frexpr.h;fp=support%2Frexpr%2Frexpr.h;h=336be2e400d40134573ca6863f0b64286158a07c;hp=0000000000000000000000000000000000000000;hb=56dd00148e59773742903ee71be791eaa49a8616;hpb=cb15b978c765a661bf3154d865fa3e2401d649f5

diff --git a/support/rexpr/rexpr.h b/support/rexpr/rexpr.h
new file mode 100755
index 0000000..336be2e
--- /dev/null
+++ b/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 __STDC__
+int rexpr( char *expr, char *s );
+int match( NodePtr automaton, char *s );
+#else
+int rexpr();
+int match();
+#endif
+
+