diff options
Diffstat (limited to 'src/System.Private.CoreLib/shared/System/Globalization/TextInfo.Windows.cs')
| -rw-r--r-- | src/System.Private.CoreLib/shared/System/Globalization/TextInfo.Windows.cs | 120 |
1 files changed, 17 insertions, 103 deletions
diff --git a/src/System.Private.CoreLib/shared/System/Globalization/TextInfo.Windows.cs b/src/System.Private.CoreLib/shared/System/Globalization/TextInfo.Windows.cs index 015b37fcc..6e5e32100 100644 --- a/src/System.Private.CoreLib/shared/System/Globalization/TextInfo.Windows.cs +++ b/src/System.Private.CoreLib/shared/System/Globalization/TextInfo.Windows.cs @@ -3,7 +3,6 @@ // See the LICENSE file in the project root for more information. using System.Diagnostics; -using System.Runtime.InteropServices; namespace System.Globalization { @@ -24,115 +23,33 @@ namespace System.Globalization _sortHandle = ret > 0 ? handle : IntPtr.Zero; } - private unsafe string ChangeCase(string s, bool toUpper) + private unsafe void ChangeCase(char* pSource, int pSourceLen, char* pResult, int pResultLen, bool toUpper) { Debug.Assert(!_invariantMode); - - Debug.Assert(s != null); - - // - // Get the length of the string. - // - int nLengthInput = s.Length; - - // - // Check if we have the empty string. - // - if (nLengthInput == 0) - { - return s; - } - - int ret; + Debug.Assert(pSource != null); + Debug.Assert(pResult != null); + Debug.Assert(pSourceLen >= 0); + Debug.Assert(pResultLen >= 0); + Debug.Assert(pSourceLen <= pResultLen); // Check for Invariant to avoid A/V in LCMapStringEx uint linguisticCasing = IsInvariantLocale(_textInfoName) ? 0 : LCMAP_LINGUISTIC_CASING; - // - // Create the result string. - // - string result = string.FastAllocateString(nLengthInput); - - fixed (char* pSource = s) - fixed (char* pResult = result) - { - ret = Interop.Kernel32.LCMapStringEx(_sortHandle != IntPtr.Zero ? null : _textInfoName, - linguisticCasing | (toUpper ? LCMAP_UPPERCASE : LCMAP_LOWERCASE), - pSource, - nLengthInput, - pResult, - nLengthInput, - null, - null, - _sortHandle); - } - + int ret = Interop.Kernel32.LCMapStringEx(_sortHandle != IntPtr.Zero ? null : _textInfoName, + linguisticCasing | (toUpper ? LCMAP_UPPERCASE : LCMAP_LOWERCASE), + pSource, + pSourceLen, + pResult, + pSourceLen, + null, + null, + _sortHandle); if (ret == 0) { throw new InvalidOperationException(SR.InvalidOperation_ReadOnly); } - Debug.Assert(ret == nLengthInput, "Expected getting the same length of the original string"); - return result; - } - - internal unsafe void ChangeCase(ReadOnlySpan<char> source, Span<char> destination, bool toUpper) - { - Debug.Assert(!_invariantMode); - Debug.Assert(destination.Length >= source.Length); - - if (source.IsEmpty) - { - return; - } - - int ret; - - // Check for Invariant to avoid A/V in LCMapStringEx - uint linguisticCasing = IsInvariantLocale(_textInfoName) ? 0 : LCMAP_LINGUISTIC_CASING; - - fixed (char* pSource = &MemoryMarshal.GetReference(source)) - fixed (char* pResult = &MemoryMarshal.GetReference(destination)) - { - ret = Interop.Kernel32.LCMapStringEx(_sortHandle != IntPtr.Zero ? null : _textInfoName, - linguisticCasing | (toUpper ? LCMAP_UPPERCASE : LCMAP_LOWERCASE), - pSource, - source.Length, - pResult, - source.Length, - null, - null, - _sortHandle); - } - - if (ret == 0) - { - throw new InvalidOperationException(SR.InvalidOperation_ReadOnly); - } - - Debug.Assert(ret == source.Length, "Expected getting the same length of the original span"); - } - - private unsafe char ChangeCase(char c, bool toUpper) - { - Debug.Assert(!_invariantMode); - - char retVal = '\0'; - - // Check for Invariant to avoid A/V in LCMapStringEx - uint linguisticCasing = IsInvariantLocale(_textInfoName) ? 0 : LCMAP_LINGUISTIC_CASING; - - Interop.Kernel32.LCMapStringEx(_sortHandle != IntPtr.Zero ? null : _textInfoName, - toUpper ? LCMAP_UPPERCASE | linguisticCasing : LCMAP_LOWERCASE | linguisticCasing, - &c, - 1, - &retVal, - 1, - null, - null, - _sortHandle); - - return retVal; + Debug.Assert(ret == pSourceLen, "Expected getting the same length of the original string"); } // PAL Ends here @@ -143,9 +60,6 @@ namespace System.Globalization private const uint LCMAP_LOWERCASE = 0x00000100; private const uint LCMAP_UPPERCASE = 0x00000200; - private static bool IsInvariantLocale(string localeName) - { - return localeName == ""; - } + private static bool IsInvariantLocale(string localeName) => localeName == ""; } } |