1 files changed, 36 insertions, 0 deletions
diff --git a/intl/lwbrk/nsComplexBreaker.h b/intl/lwbrk/nsComplexBreaker.h
new file mode 100644
index 0000000000..4120217a6e
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+++ b/intl/lwbrk/nsComplexBreaker.h
@@ -0,0 +1,36 @@
+/* -*- 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 nsComplexBreaker_h__
+#define nsComplexBreaker_h__
+
+#include <stdint.h>
+/**
+ * Find line break opportunities in aText[] of aLength characters,
+ * filling boolean values indicating line break opportunities for
+ * corresponding charactersin aBreakBefore[] on return.
+ */
+void NS_GetComplexLineBreaks(const char16_t* aText, uint32_t aLength,
+                             uint8_t* aBreakBefore);
+
+class ComplexBreaker {
+ public:
+  static void Initialize();
+
+  static void Shutdown();
+
+  /**
+   * A wrapper around the platform specific NS_GetComplexLineBreaks, which adds
+   * caching of the results to mitigate sometimes expensive implementation.
+   * @param aText - pointer to the text to process for possible line breaks
+   * @param aLength - the length to process
+   * @param aBreakBefore - result array correlated to aText, where element is
+   *                       set to true if line can be broken before
+   *                       corresponding character in aText and false otherwise
+   */
+  static void GetBreaks(const char16_t* aText, uint32_t aLength,
+                        uint8_t* aBreakBefore);
+};
+
+#endif /* nsComplexBreaker_h__ */