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

cde/programs/nsgmls/RangeMap.h

@@ -0,0 +1,72 @@
+/* $XConsortium: RangeMap.h /main/1 1996/07/29 17:02:22 cde-hp $ */
+// Copyright (c) 1994 James Clark
+// See the file COPYING for copying permission.
+
+#ifndef RangeMap_INCLUDED
+#define RangeMap_INCLUDED 1
+
+#include "Vector.h"
+#include "Boolean.h"
+#include "ISet.h"
+#include "types.h"
+#include <stddef.h>
+
+#ifdef SP_NAMESPACE
+namespace SP_NAMESPACE {
+#endif
+
+template<class From, class To>
+struct RangeMapRange {
+  RangeMapRange() { }
+  ~RangeMapRange() { }
+  From fromMin;
+  From fromMax;
+  To toMin;
+};
+
+template<class From, class To> class RangeMapIter;
+
+template<class From, class To>
+class RangeMap {
+public:
+  RangeMap();
+  Boolean map(From, To &, From &alsoMax) const;
+  // Return 0 for no matches, 1 for 1, 2 for more than 1.
+  unsigned inverseMap(To, From &, ISet<WideChar> &, WideChar &count) const;
+  void addRange(From, From, To);
+private:
+  Vector<RangeMapRange<From,To> > ranges_;
+  friend class RangeMapIter<From,To>;
+};
+
+template<class From, class To>
+class RangeMapIter {
+public:
+  RangeMapIter(const RangeMap<From,To> &map);
+  Boolean next(From &fromMin, From &fromMax, To &toMin) {
+    if (!count_)
+      return 0;
+    else {
+      fromMin = ptr_->fromMin;
+      fromMax = ptr_->fromMax;
+      toMin = ptr_->toMin;
+      ptr_++;
+      count_--;
+      return 1;
+    }
+  }
+private:
+  size_t count_;
+  const RangeMapRange<From,To> *ptr_;
+//  Vector<RangeMapRange<From,To> >::const_iterator ptr_;
+};
+
+#ifdef SP_NAMESPACE
+}
+#endif
+
+#endif /* not RangeMap_INCLUDED */
+
+#ifdef SP_DEFINE_TEMPLATES
+#include "RangeMap.C"
+#endif