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

cde/programs/dtinfo/DtMmdb/StyleSheet/PathQualifier.h

@@ -0,0 +1,104 @@
+/* $XConsortium: PathQualifier.h /main/5 1996/08/21 15:50:33 drk $ */
+#ifndef _PathQualifier_h
+#define _PathQualifier_h
+
+#ifndef CDE_NEXT
+
+#else
+#include "dti_cc/CC_String.h"
+#endif
+
+#include "SymTab.h"
+
+// PathEXPR = PathTERM | PathTERM log PathTERM
+
+// PathTERM = position | attribute-selector
+
+// position = posn eqop number
+// attribute-selector = attribute eqop string
+
+// log = and | or 
+
+
+class Element;
+class Symbol ;
+
+enum PQEqOp { PQEqual, PQNotEqual };
+enum PQBoolean { PQFalse, PQTrue };
+enum PQLogOp { PQand, PQor };
+
+class PQExpr
+{
+public:
+  virtual ~PQExpr();
+  virtual PQBoolean evaluate(const Element &) = 0;
+};
+
+class PQNot : public PQExpr
+{
+public:
+  PQNot(PQExpr *);
+  ~PQNot();
+  virtual PQBoolean evaluate(const Element &);
+private:
+  PQExpr	*f_expr;
+};
+
+
+class PQPosition : public PQExpr
+{
+public:
+  PQPosition(PQEqOp optype, int position);
+  virtual PQBoolean evaluate(const Element &);
+
+private:
+  int	f_position ;
+  PQEqOp	f_optype;
+};
+
+class PQSibling: public PQExpr
+{
+public:
+  PQSibling(PQEqOp optype, int sibling);
+  virtual PQBoolean evaluate(const Element &);
+
+private:
+  int	f_sibling;
+  PQEqOp	f_optype;
+};
+
+class PQAttributeSelector : public PQExpr
+{
+public:
+  PQAttributeSelector(const Symbol &attrname, PQEqOp, const CC_String &string);
+  ~PQAttributeSelector();
+  virtual PQBoolean evaluate(const Element &);
+private:
+  PQEqOp	f_optype ;
+  Symbol	f_attribute;
+  CC_String	f_string ;
+};
+
+class PQLogExpr : public PQExpr
+{
+public:
+
+  PQLogExpr(PQExpr *left, PQLogOp op, PQExpr *right);
+  ~PQLogExpr();
+
+  virtual PQBoolean evaluate(const Element &);
+
+private:
+
+  PQLogOp	 f_optype ;
+  PQExpr	*f_left ;
+  PQExpr	*f_right ;
+};
+
+
+
+
+#endif /* _PathQualifier_h */
+/* DO NOT ADD ANY LINES AFTER THIS #endif */
+
+