1 files changed, 117 insertions, 0 deletions
diff --git a/intl/unicharutil/util/IrishCasing.h b/intl/unicharutil/util/IrishCasing.h
new file mode 100644
index 000000000..f5cb888dc
--- /dev/null
+++ b/intl/unicharutil/util/IrishCasing.h
@@ -0,0 +1,117 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef IrishCasing_h_
+#define IrishCasing_h_
+
+#include <stdint.h>
+#include "mozilla/Attributes.h"
+
+namespace mozilla {
+
+class IrishCasing {
+private:
+  enum IrishStates {
+    kState_Start,
+    kState_InWord,
+    kState_b,
+    kState_bh,
+    kState_d,
+    kState_g,
+    kState_h,
+    kState_m,
+    kState_n,
+    kState_nt_,
+    kState_t,
+    kState_ts,
+    kNumStates
+  };
+
+  enum IrishClasses {
+    kClass_b,
+    kClass_B,
+    kClass_cC,
+    kClass_d,
+    kClass_DG,
+    kClass_fF,
+    kClass_g,
+    kClass_h,
+    kClass_lLNrR,
+    kClass_m,
+    kClass_n,
+    kClass_pP,
+    kClass_sS,
+    kClass_t,
+    kClass_T,
+    kClass_vowel,
+    kClass_Vowel,
+    kClass_hyph,
+    kClass_letter,
+    kClass_other,
+    kNumClasses
+  };
+
+public:
+  class State {
+    friend class IrishCasing;
+
+  public:
+    State()
+      : mState(kState_Start)
+    {
+    }
+
+    MOZ_IMPLICIT State(const IrishStates& aState)
+      : mState(aState)
+    {
+    }
+
+    void Reset()
+    {
+      mState = kState_Start;
+    }
+
+    operator IrishStates() const
+    {
+      return mState;
+    }
+
+  private:
+    explicit State(uint8_t aState)
+      : mState(IrishStates(aState))
+    {
+    }
+
+    uint8_t GetClass(uint32_t aCh);
+
+    IrishStates mState;
+  };
+
+  enum {
+    kMarkPositionFlag = 0x80,
+    kActionMask       = 0x30,
+    kActionShift      = 4,
+    kNextStateMask    = 0x0f
+  };
+
+  static const uint8_t sUppercaseStateTable[kNumClasses][kNumStates];
+  static const uint8_t sLcClasses[26];
+  static const uint8_t sUcClasses[26];
+
+  static uint32_t UpperCase(uint32_t aCh, State& aState,
+                            bool& aMarkPos, uint8_t& aAction);
+
+  static bool IsUpperVowel(uint32_t aCh)
+  {
+    return GetClass(aCh) == kClass_Vowel;
+  }
+
+private:
+  static uint8_t GetClass(uint32_t aCh);
+};
+
+} // namespace mozilla
+
+#endif