1 files changed, 152 insertions, 0 deletions
diff --git a/intl/unicharutil/util/nsUnicharUtils.h b/intl/unicharutil/util/nsUnicharUtils.h
new file mode 100644
index 000000000..e62772067
--- /dev/null
+++ b/intl/unicharutil/util/nsUnicharUtils.h
@@ -0,0 +1,152 @@
+/* -*- 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 nsUnicharUtils_h__
+#define nsUnicharUtils_h__
+
+#include "nsStringGlue.h"
+
+/* (0x3131u <= (u) && (u) <= 0x318eu) => Hangul Compatibility Jamo */
+/* (0xac00u <= (u) && (u) <= 0xd7a3u) => Hangul Syllables          */
+#define IS_CJ_CHAR(u) \
+  ((0x2e80u <= (u) && (u) <= 0x312fu) || \
+   (0x3190u <= (u) && (u) <= 0xabffu) || \
+   (0xf900u <= (u) && (u) <= 0xfaffu) || \
+   (0xff00u <= (u) && (u) <= 0xffefu) )
+
+#define IS_ZERO_WIDTH_SPACE(u) ((u) == 0x200B)
+
+void ToLowerCase(nsAString&);
+void ToUpperCase(nsAString&);
+
+void ToLowerCase(const nsAString& aSource, nsAString& aDest);
+void ToUpperCase(const nsAString& aSource, nsAString& aDest);
+
+uint32_t ToLowerCase(uint32_t);
+uint32_t ToUpperCase(uint32_t);
+uint32_t ToTitleCase(uint32_t);
+
+void ToLowerCase(const char16_t*, char16_t*, uint32_t);
+void ToUpperCase(const char16_t*, char16_t*, uint32_t);
+
+inline bool IsUpperCase(uint32_t c) {
+  return ToLowerCase(c) != c;
+}
+
+inline bool IsLowerCase(uint32_t c) {
+  return ToUpperCase(c) != c;
+}
+
+#ifdef MOZILLA_INTERNAL_API
+
+class nsCaseInsensitiveStringComparator : public nsStringComparator
+{
+public:
+  virtual int32_t operator() (const char16_t*,
+                              const char16_t*,
+                              uint32_t,
+                              uint32_t) const override;
+};
+
+class nsCaseInsensitiveUTF8StringComparator : public nsCStringComparator
+{
+public:
+  virtual int32_t operator() (const char*,
+                              const char*,
+                              uint32_t,
+                              uint32_t) const override;
+};
+
+class nsCaseInsensitiveStringArrayComparator
+{
+public:
+  template<class A, class B>
+  bool Equals(const A& a, const B& b) const {
+    return a.Equals(b, nsCaseInsensitiveStringComparator());
+  }
+};
+
+class nsASCIICaseInsensitiveStringComparator : public nsStringComparator
+{
+public:
+  nsASCIICaseInsensitiveStringComparator() {}
+  virtual int operator() (const char16_t*,
+                          const char16_t*,
+                          uint32_t,
+                          uint32_t) const override;
+};
+
+inline bool
+CaseInsensitiveFindInReadable(const nsAString& aPattern,
+                              nsAString::const_iterator& aSearchStart,
+                              nsAString::const_iterator& aSearchEnd)
+{
+  return FindInReadable(aPattern, aSearchStart, aSearchEnd,
+                        nsCaseInsensitiveStringComparator());
+}
+
+inline bool
+CaseInsensitiveFindInReadable(const nsAString& aPattern,
+                              const nsAString& aHay)
+{
+  nsAString::const_iterator searchBegin, searchEnd;
+  return FindInReadable(aPattern, aHay.BeginReading(searchBegin),
+                        aHay.EndReading(searchEnd),
+                        nsCaseInsensitiveStringComparator());
+}
+
+#endif // MOZILLA_INTERNAL_API
+
+int32_t
+CaseInsensitiveCompare(const char16_t *a, const char16_t *b, uint32_t len);
+
+int32_t
+CaseInsensitiveCompare(const char* aLeft, const char* aRight,
+                       uint32_t aLeftBytes, uint32_t aRightBytes);
+
+/**
+ * This function determines whether the UTF-8 sequence pointed to by aLeft is
+ * case-insensitively-equal to the UTF-8 sequence pointed to by aRight.
+ *
+ * aLeftEnd marks the first memory location past aLeft that is not part of
+ * aLeft; aRightEnd similarly marks the end of aRight.
+ *
+ * The function assumes that aLeft < aLeftEnd and aRight < aRightEnd.
+ *
+ * The function stores the addresses of the next characters in the sequence
+ * into aLeftNext and aRightNext.  It's up to the caller to make sure that the
+ * returned pointers are valid -- i.e. the function may return aLeftNext >=
+ * aLeftEnd or aRightNext >= aRightEnd.
+ *
+ * If the function encounters invalid text, it sets aErr to true and returns
+ * false, possibly leaving aLeftNext and aRightNext uninitialized.  If the
+ * function returns true, aErr is guaranteed to be false and both aLeftNext and
+ * aRightNext are guaranteed to be initialized.
+ */
+bool
+CaseInsensitiveUTF8CharsEqual(const char* aLeft, const char* aRight,
+                              const char* aLeftEnd, const char* aRightEnd,
+                              const char** aLeftNext, const char** aRightNext,
+                              bool* aErr);
+
+namespace mozilla {
+
+/**
+ * Hash a UTF8 string as though it were a UTF16 string.
+ *
+ * The value returned is the same as if we converted the string to UTF16 and
+ * then ran HashString() on the result.
+ *
+ * The given |length| is in bytes.
+ */
+uint32_t
+HashUTF8AsUTF16(const char* aUTF8, uint32_t aLength, bool* aErr);
+
+bool
+IsSegmentBreakSkipChar(uint32_t u);
+
+} // namespace mozilla
+
+#endif  /* nsUnicharUtils_h__ */