private const int ICU_ULOC_FULLNAME_CAPACITY = 157; // max size of locale name
/// <summary>
/// This method uses the sRealName field (which is initialized by the constructor before this is called) to
/// initialize the rest of the state of CultureData based on the underlying OS globalization library.
/// </summary>
private bool InitIcuCultureDataCore()
{
Debug.Assert(_sRealName != null);
Debug.Assert(!GlobalizationMode.Invariant);
const string ICU_COLLATION_KEYWORD = "@collation=";
string realNameBuffer = _sRealName;
// Basic validation
if (!IsValidCultureName(realNameBuffer, out var index))
{
return(false);
}
// Replace _ (alternate sort) with @collation= for ICU
ReadOnlySpan <char> alternateSortName = default;
if (index > 0)
{
alternateSortName = realNameBuffer.AsSpan(index + 1);
realNameBuffer = string.Concat(realNameBuffer.AsSpan(0, index), ICU_COLLATION_KEYWORD, alternateSortName);
}
// Get the locale name from ICU
if (!GetLocaleName(realNameBuffer, out _sWindowsName))
{
return(false); // fail
}
// Replace the ICU collation keyword with an _
Debug.Assert(_sWindowsName != null);
index = _sWindowsName.IndexOf(ICU_COLLATION_KEYWORD, StringComparison.Ordinal);
if (index >= 0)
{
// Use original culture name if alternateSortName is not set, which is possible even if the normalized
// culture name has "@collation=".
// "zh-TW-u-co-zhuyin" is a good example. The term "u-co-" means the following part will be the sort name
// and it will be treated in ICU as "zh-TW@collation=zhuyin".
_sName = alternateSortName.Length == 0 ? realNameBuffer : string.Concat(_sWindowsName.AsSpan(0, index), "_", alternateSortName);
}
else
{
_sName = _sWindowsName;
}
_sRealName = _sName;
_iLanguage = LCID;
if (_iLanguage == 0)
{
_iLanguage = CultureInfo.LOCALE_CUSTOM_UNSPECIFIED;
}
_bNeutral = TwoLetterISOCountryName.Length == 0;
_sSpecificCulture = _bNeutral ? IcuLocaleData.GetSpecificCultureName(_sRealName) : _sRealName;
// Remove the sort from sName unless custom culture
if (index > 0 && !_bNeutral && !IsCustomCultureId(_iLanguage))
{
_sName = _sWindowsName.Substring(0, index);
}
return(true);
}
private const int ICU_ULOC_FULLNAME_CAPACITY = 157; // max size of locale name
/// <summary>
/// This method uses the sRealName field (which is initialized by the constructor before this is called) to
/// initialize the rest of the state of CultureData based on the underlying OS globalization library.
/// </summary>
private bool InitIcuCultureDataCore()
{
Debug.Assert(_sRealName != null);
Debug.Assert(!GlobalizationMode.Invariant);
const string ICU_COLLATION_KEYWORD = "@collation=";
string realNameBuffer = _sRealName;
// Basic validation
if (!IsValidCultureName(realNameBuffer, out var index))
{
return(false);
}
// Replace _ (alternate sort) with @collation= for ICU
ReadOnlySpan <char> alternateSortName = default;
if (index > 0)
{
alternateSortName = realNameBuffer.AsSpan(index + 1);
realNameBuffer = string.Concat(realNameBuffer.AsSpan(0, index), ICU_COLLATION_KEYWORD, alternateSortName);
}
// Get the locale name from ICU
if (!GetLocaleName(realNameBuffer, out _sWindowsName))
{
return(false); // fail
}
// Replace the ICU collation keyword with an _
Debug.Assert(_sWindowsName != null);
index = _sWindowsName.IndexOf(ICU_COLLATION_KEYWORD, StringComparison.Ordinal);
if (index >= 0)
{
_sName = string.Concat(_sWindowsName.AsSpan(0, index), "_", alternateSortName);
}
else
{
_sName = _sWindowsName;
}
_sRealName = _sName;
_iLanguage = LCID;
if (_iLanguage == 0)
{
_iLanguage = CultureInfo.LOCALE_CUSTOM_UNSPECIFIED;
}
_bNeutral = TwoLetterISOCountryName.Length == 0;
_sSpecificCulture = _bNeutral ? IcuLocaleData.GetSpecificCultureName(_sRealName) : _sRealName;
// Remove the sort from sName unless custom culture
if (index > 0 && !_bNeutral && !IsCustomCultureId(_iLanguage))
{
_sName = _sWindowsName.Substring(0, index);
}
return(true);
}
/// <summary>
/// This method uses the sRealName field (which is initialized by the constructor before this is called) to
/// initialize the rest of the state of CultureData based on the underlying OS globalization library.
/// </summary>
private unsafe bool IcuInitCultureData()
{
Debug.Assert(_sRealName != null);
Debug.Assert(!GlobalizationMode.Invariant);
Debug.Assert(!GlobalizationMode.UseNls);
string realNameBuffer = _sRealName;
// Basic validation
if (realNameBuffer.Contains('@'))
{
return(false); // don't allow ICU variants to come in directly
}
// Replace _ (alternate sort) with @collation= for ICU
ReadOnlySpan <char> alternateSortName = default;
int index = realNameBuffer.IndexOf('_');
if (index > 0)
{
if (index >= (realNameBuffer.Length - 1) || // must have characters after _
realNameBuffer.IndexOf('_', index + 1) >= 0) // only one _ allowed
{
return(false); // fail
}
alternateSortName = realNameBuffer.AsSpan(index + 1);
realNameBuffer = string.Concat(realNameBuffer.AsSpan(0, index), ICU_COLLATION_KEYWORD, alternateSortName);
}
// Get the locale name from ICU
if (!GetLocaleName(realNameBuffer, out _sWindowsName))
{
return(false); // fail
}
// Replace the ICU collation keyword with an _
Debug.Assert(_sWindowsName != null);
index = _sWindowsName.IndexOf(ICU_COLLATION_KEYWORD, StringComparison.Ordinal);
if (index >= 0)
{
_sName = string.Concat(_sWindowsName.AsSpan(0, index), "_", alternateSortName);
}
else
{
_sName = _sWindowsName;
}
_sRealName = _sName;
_iLanguage = LCID;
if (_iLanguage == 0)
{
_iLanguage = CultureInfo.LOCALE_CUSTOM_UNSPECIFIED;
}
_bNeutral = TwoLetterISOCountryName.Length == 0;
_sSpecificCulture = _bNeutral ? IcuLocaleData.GetSpecificCultureName(_sRealName) : _sRealName;
// Remove the sort from sName unless custom culture
if (index > 0 && !_bNeutral && !IsCustomCultureId(_iLanguage))
{
_sName = _sWindowsName.Substring(0, index);
}
return(true);
}
