1 files changed, 160 insertions, 0 deletions
diff --git a/intl/unicharutil/util/nsUnicharUtils.h b/intl/unicharutil/util/nsUnicharUtils.h
new file mode 100644
index 0000000000..ffbbabf2c6
--- /dev/null
+++ b/intl/unicharutil/util/nsUnicharUtils.h
@@ -0,0 +1,160 @@
+/* -*- 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 "nsString.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)
+
+#define IS_ASCII(u) ((u) < 0x80)
+#define IS_ASCII_UPPER(u) (('A' <= (u)) && ((u) <= 'Z'))
+#define IS_ASCII_LOWER(u) (('a' <= (u)) && ((u) <= 'z'))
+#define IS_ASCII_ALPHA(u) (IS_ASCII_UPPER(u) || IS_ASCII_LOWER(u))
+#define IS_ASCII_SPACE(u) (' ' == (u))
+
+void ToLowerCase(nsAString& aString);
+void ToLowerCaseASCII(nsAString& aString);
+void ToUpperCase(nsAString& aString);
+
+void ToLowerCase(const nsAString& aSource, nsAString& aDest);
+void ToLowerCaseASCII(const nsAString& aSource, nsAString& aDest);
+void ToUpperCase(const nsAString& aSource, nsAString& aDest);
+
+uint32_t ToLowerCase(uint32_t aChar);
+uint32_t ToUpperCase(uint32_t aChar);
+uint32_t ToTitleCase(uint32_t aChar);
+
+void ToLowerCase(const char16_t* aIn, char16_t* aOut, uint32_t aLen);
+void ToLowerCaseASCII(const char16_t* aIn, char16_t* aOut, uint32_t aLen);
+void ToUpperCase(const char16_t* aIn, char16_t* aOut, uint32_t aLen);
+
+char ToLowerCaseASCII(const char aChar);
+char16_t ToLowerCaseASCII(const char16_t aChar);
+char32_t ToLowerCaseASCII(const char32_t aChar);
+
+char ToUpperCaseASCII(const char aChar);
+char16_t ToUpperCaseASCII(const char16_t aChar);
+char32_t ToUpperCaseASCII(const char32_t aChar);
+
+inline bool IsUpperCase(uint32_t c) { return ToLowerCase(c) != c; }
+
+inline bool IsLowerCase(uint32_t c) { return ToUpperCase(c) != c; }
+
+#ifdef MOZILLA_INTERNAL_API
+
+uint32_t ToFoldedCase(uint32_t aChar);
+void ToFoldedCase(nsAString& aString);
+void ToFoldedCase(const char16_t* aIn, char16_t* aOut, uint32_t aLen);
+
+uint32_t ToNaked(uint32_t aChar);
+void ToNaked(nsAString& aString);
+
+int32_t nsCaseInsensitiveStringComparator(const char16_t*, const char16_t*,
+                                          uint32_t, uint32_t);
+
+int32_t nsCaseInsensitiveUTF8StringComparator(const char*, const char*,
+                                              uint32_t, uint32_t);
+
+class nsCaseInsensitiveStringArrayComparator {
+ public:
+  template <class A, class B>
+  bool Equals(const A& a, const B& b) const {
+    return a.Equals(b, nsCaseInsensitiveStringComparator);
+  }
+};
+
+int32_t nsASCIICaseInsensitiveStringComparator(const char16_t*, const char16_t*,
+                                               uint32_t, uint32_t);
+
+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);
+
+/**
+ * Calculates the lower-case of the codepoint of the UTF8 sequence starting at
+ * aStr.  Sets aNext to the byte following the end of the sequence.
+ *
+ * If the sequence is invalid, or if computing the codepoint would take us off
+ * the end of the string (as marked by aEnd), returns -1 and does not set
+ * aNext.  Note that this function doesn't check that aStr < aEnd -- it assumes
+ * you've done that already.
+ */
+uint32_t GetLowerUTF8Codepoint(const char* aStr, const char* aEnd,
+                               const char** aNext);
+
+/**
+ * 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 (or
+ * optionally, case and diacritic insensitively equal), as defined by having
+ * matching (naked) lower-cased codepoints.
+ *
+ * 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.
+ *
+ * If aMatchDiacritics is false, the comparison is neither case-sensitive nor
+ * diacritic-sensitive.
+ */
+bool CaseInsensitiveUTF8CharsEqual(const char* aLeft, const char* aRight,
+                                   const char* aLeftEnd, const char* aRightEnd,
+                                   const char** aLeftNext,
+                                   const char** aRightNext, bool* aErr,
+                                   bool aMatchDiacritics = true);
+
+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__ */