1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/intl/unicharutil/util/nsUnicharUtils.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,147 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef nsUnicharUtils_h__
1.10 +#define nsUnicharUtils_h__
1.11 +
1.12 +#include "nsStringGlue.h"
1.13 +
1.14 +/* (0x3131u <= (u) && (u) <= 0x318eu) => Hangul Compatibility Jamo */
1.15 +/* (0xac00u <= (u) && (u) <= 0xd7a3u) => Hangul Syllables */
1.16 +#define IS_CJ_CHAR(u) \
1.17 + ((0x2e80u <= (u) && (u) <= 0x312fu) || \
1.18 + (0x3190u <= (u) && (u) <= 0xabffu) || \
1.19 + (0xf900u <= (u) && (u) <= 0xfaffu) || \
1.20 + (0xff00u <= (u) && (u) <= 0xffefu) )
1.21 +
1.22 +void ToLowerCase(nsAString&);
1.23 +void ToUpperCase(nsAString&);
1.24 +
1.25 +void ToLowerCase(const nsAString& aSource, nsAString& aDest);
1.26 +void ToUpperCase(const nsAString& aSource, nsAString& aDest);
1.27 +
1.28 +uint32_t ToLowerCase(uint32_t);
1.29 +uint32_t ToUpperCase(uint32_t);
1.30 +uint32_t ToTitleCase(uint32_t);
1.31 +
1.32 +void ToLowerCase(const char16_t*, char16_t*, uint32_t);
1.33 +void ToUpperCase(const char16_t*, char16_t*, uint32_t);
1.34 +
1.35 +inline bool IsUpperCase(uint32_t c) {
1.36 + return ToLowerCase(c) != c;
1.37 +}
1.38 +
1.39 +inline bool IsLowerCase(uint32_t c) {
1.40 + return ToUpperCase(c) != c;
1.41 +}
1.42 +
1.43 +#ifdef MOZILLA_INTERNAL_API
1.44 +
1.45 +class nsCaseInsensitiveStringComparator : public nsStringComparator
1.46 +{
1.47 +public:
1.48 + virtual int32_t operator() (const char16_t*,
1.49 + const char16_t*,
1.50 + uint32_t,
1.51 + uint32_t) const;
1.52 +};
1.53 +
1.54 +class nsCaseInsensitiveUTF8StringComparator : public nsCStringComparator
1.55 +{
1.56 +public:
1.57 + virtual int32_t operator() (const char*,
1.58 + const char*,
1.59 + uint32_t,
1.60 + uint32_t) const;
1.61 +};
1.62 +
1.63 +class nsCaseInsensitiveStringArrayComparator
1.64 +{
1.65 +public:
1.66 + template<class A, class B>
1.67 + bool Equals(const A& a, const B& b) const {
1.68 + return a.Equals(b, nsCaseInsensitiveStringComparator());
1.69 + }
1.70 +};
1.71 +
1.72 +class nsASCIICaseInsensitiveStringComparator : public nsStringComparator
1.73 +{
1.74 +public:
1.75 + nsASCIICaseInsensitiveStringComparator() {}
1.76 + virtual int operator() (const char16_t*,
1.77 + const char16_t*,
1.78 + uint32_t,
1.79 + uint32_t) const;
1.80 +};
1.81 +
1.82 +inline bool
1.83 +CaseInsensitiveFindInReadable(const nsAString& aPattern,
1.84 + nsAString::const_iterator& aSearchStart,
1.85 + nsAString::const_iterator& aSearchEnd)
1.86 +{
1.87 + return FindInReadable(aPattern, aSearchStart, aSearchEnd,
1.88 + nsCaseInsensitiveStringComparator());
1.89 +}
1.90 +
1.91 +inline bool
1.92 +CaseInsensitiveFindInReadable(const nsAString& aPattern,
1.93 + const nsAString& aHay)
1.94 +{
1.95 + nsAString::const_iterator searchBegin, searchEnd;
1.96 + return FindInReadable(aPattern, aHay.BeginReading(searchBegin),
1.97 + aHay.EndReading(searchEnd),
1.98 + nsCaseInsensitiveStringComparator());
1.99 +}
1.100 +
1.101 +#endif // MOZILLA_INTERNAL_API
1.102 +
1.103 +int32_t
1.104 +CaseInsensitiveCompare(const char16_t *a, const char16_t *b, uint32_t len);
1.105 +
1.106 +int32_t
1.107 +CaseInsensitiveCompare(const char* aLeft, const char* aRight,
1.108 + uint32_t aLeftBytes, uint32_t aRightBytes);
1.109 +
1.110 +/**
1.111 + * This function determines whether the UTF-8 sequence pointed to by aLeft is
1.112 + * case-insensitively-equal to the UTF-8 sequence pointed to by aRight.
1.113 + *
1.114 + * aLeftEnd marks the first memory location past aLeft that is not part of
1.115 + * aLeft; aRightEnd similarly marks the end of aRight.
1.116 + *
1.117 + * The function assumes that aLeft < aLeftEnd and aRight < aRightEnd.
1.118 + *
1.119 + * The function stores the addresses of the next characters in the sequence
1.120 + * into aLeftNext and aRightNext. It's up to the caller to make sure that the
1.121 + * returned pointers are valid -- i.e. the function may return aLeftNext >=
1.122 + * aLeftEnd or aRightNext >= aRightEnd.
1.123 + *
1.124 + * If the function encounters invalid text, it sets aErr to true and returns
1.125 + * false, possibly leaving aLeftNext and aRightNext uninitialized. If the
1.126 + * function returns true, aErr is guaranteed to be false and both aLeftNext and
1.127 + * aRightNext are guaranteed to be initialized.
1.128 + */
1.129 +bool
1.130 +CaseInsensitiveUTF8CharsEqual(const char* aLeft, const char* aRight,
1.131 + const char* aLeftEnd, const char* aRightEnd,
1.132 + const char** aLeftNext, const char** aRightNext,
1.133 + bool* aErr);
1.134 +
1.135 +namespace mozilla {
1.136 +
1.137 +/**
1.138 + * Hash a UTF8 string as though it were a UTF16 string.
1.139 + *
1.140 + * The value returned is the same as if we converted the string to UTF16 and
1.141 + * then ran HashString() on the result.
1.142 + *
1.143 + * The given |length| is in bytes.
1.144 + */
1.145 +uint32_t
1.146 +HashUTF8AsUTF16(const char* aUTF8, uint32_t aLength, bool* aErr);
1.147 +
1.148 +} // namespace mozilla
1.149 +
1.150 +#endif /* nsUnicharUtils_h__ */
