1 files changed, 59 insertions, 0 deletions
diff --git a/core/fpdfdoc/include/cpvt_wordrange.h b/core/fpdfdoc/include/cpvt_wordrange.h
new file mode 100644
index 0000000000..3c6f05b159
--- /dev/null
+++ b/core/fpdfdoc/include/cpvt_wordrange.h
@@ -0,0 +1,59 @@
+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef CORE_FPDFDOC_INCLUDE_CPVT_WORDRANGE_H_
+#define CORE_FPDFDOC_INCLUDE_CPVT_WORDRANGE_H_
+
+#include "core/fpdfdoc/include/cpvt_wordplace.h"
+#include "core/fxcrt/include/fx_system.h"
+
+struct CPVT_WordRange {
+  CPVT_WordRange() {}
+
+  CPVT_WordRange(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
+    Set(begin, end);
+  }
+
+  void Default() {
+    BeginPos.Default();
+    EndPos.Default();
+  }
+
+  void Set(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
+    BeginPos = begin;
+    EndPos = end;
+    SwapWordPlace();
+  }
+
+  void SetBeginPos(const CPVT_WordPlace& begin) {
+    BeginPos = begin;
+    SwapWordPlace();
+  }
+
+  void SetEndPos(const CPVT_WordPlace& end) {
+    EndPos = end;
+    SwapWordPlace();
+  }
+
+  FX_BOOL IsExist() const { return BeginPos != EndPos; }
+
+  FX_BOOL operator!=(const CPVT_WordRange& wr) const {
+    return wr.BeginPos != BeginPos || wr.EndPos != EndPos;
+  }
+
+  void SwapWordPlace() {
+    if (BeginPos.WordCmp(EndPos) > 0) {
+      CPVT_WordPlace place = EndPos;
+      EndPos = BeginPos;
+      BeginPos = place;
+    }
+  }
+
+  CPVT_WordPlace BeginPos;
+  CPVT_WordPlace EndPos;
+};
+
+#endif  // CORE_FPDFDOC_INCLUDE_CPVT_WORDRANGE_H_