Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtinfo/dtinfogen/infolib/etc/Expression.h

@@ -0,0 +1,45 @@
+/* $XConsortium: Expression.h /main/3 1996/08/21 15:46:44 drk $ */
+#ifndef __CRec_hdr__
+#define __CRec_hdr__
+
+enum OL_DATA_TYPE {
+  INVALID_OL_TYPE,
+  CONTENT,
+  CONCAT,
+  FIRSTOF,
+  GENERIC_ID,
+  LITERAL,
+  REFERENCE
+};
+
+class OL_Expression {
+
+friend class OL_Data;
+friend class FirstOf;
+friend class Concat;  
+friend int ol_dataparse();
+friend class ContentType;
+friend class ExprList;
+  
+private:
+  OL_DATA_TYPE   data_type;
+  int            ename;
+  void           *value_list;  
+  OL_Expression  *next;
+
+public:
+  OL_Expression( OL_DATA_TYPE dtype=INVALID_OL_TYPE,
+	      int dname=-1,
+	      void *vlist=0) {
+    data_type = dtype; ename = dname; value_list = vlist; next = 0;
+  }
+  
+  ~OL_Expression();
+  
+  OL_DATA_TYPE type()       const { return data_type; }
+  int          name()       const { return ename;      }
+  void         *data_list() const { return value_list; }
+
+};
+
+#endif