For OSX platforms we are using native apis instead of ICU data.
-**String comparison**
+## String comparison
Affected public APIs:
- CompareInfo.Compare,
- `None`:
-`CompareOptions.None` is mapped to `NSStringCompareOptions.NSLiteralSearch`
+ `CompareOptions.None` is mapped to `NSStringCompareOptions.NSLiteralSearch`
-There are some behaviour changes. Below are examples of such cases.
+ There are some behaviour changes. Below are examples of such cases.
-| **character 1** | **character 2** | **CompareOptions** | **hybrid globalization** | **icu** | **comments** |
-|:---------------:|:---------------:|--------------------|:------------------------:|:-------:|:-------------------------------------------------------:|
-| `\u3042` あ | `\u30A1` ァ | None | 1 | -1 | hiragana and katakana characters are ordered differently compared to ICU |
-| `\u304D\u3083` きゃ | `\u30AD\u30E3` キャ | None | 1 | -1 | hiragana and katakana characters are ordered differently compared to ICU |
-| `\u304D\u3083` きゃ | `\u30AD\u3083` キゃ | None | 1 | -1 | hiragana and katakana characters are ordered differently compared to ICU |
-| `\u3070\u3073\uFF8C\uFF9E\uFF8D\uFF9E\u307C` ばびﾌﾞﾍﾞぼ | `\u30D0\u30D3\u3076\u30D9\uFF8E\uFF9E` バビぶベﾎﾞ | None | 1 | -1 | hiragana and katakana characters are ordered differently compared to ICU |
-| `\u3060` だ | `\u30C0` ダ | None | 1 | -1 | hiragana and katakana characters are ordered differently compared to ICU |
-| `\u00C0` À | `A\u0300` À | None | 1 | 0 | This is not same character for native api |
+ | **character 1** | **character 2** | **CompareOptions** | **hybrid globalization** | **icu** | **comments** |
+ |:---------------:|:---------------:|--------------------|:------------------------:|:-------:|:-------------------------------------------------------:|
+ | `\u3042` あ | `\u30A1` ァ | None | 1 | -1 | hiragana and katakana characters are ordered differently compared to ICU |
+ | `\u304D\u3083` きゃ | `\u30AD\u30E3` キャ | None | 1 | -1 | hiragana and katakana characters are ordered differently compared to ICU |
+ | `\u304D\u3083` きゃ | `\u30AD\u3083` キゃ | None | 1 | -1 | hiragana and katakana characters are ordered differently compared to ICU |
+ | `\u3070\u3073\uFF8C\uFF9E\uFF8D\uFF9E\u307C` ばびﾌﾞﾍﾞぼ | `\u30D0\u30D3\u3076\u30D9\uFF8E\uFF9E` バビぶベﾎﾞ | None | 1 | -1 | hiragana and katakana characters are ordered differently compared to ICU |
+ | `\u3060` だ | `\u30C0` ダ | None | 1 | -1 | hiragana and katakana characters are ordered differently compared to ICU |
- `StringSort` :
-`CompareOptions.StringSort` is mapped to `NSStringCompareOptions.NSLiteralSearch` .ICU's default is to use "StringSort", i.e. nonalphanumeric symbols come before alphanumeric. That is how works also `NSLiteralSearch`.
+ `CompareOptions.StringSort` is mapped to `NSStringCompareOptions.NSLiteralSearch` .ICU's default is to use "StringSort", i.e. nonalphanumeric symbols come before alphanumeric. That is how works also `NSLiteralSearch`.
- `IgnoreCase`:
-`CompareOptions.IgnoreCase` is mapped to `NSStringCompareOptions.NSCaseInsensitiveSearch | NSStringCompareOptions.NSLiteralSearch`
+ `CompareOptions.IgnoreCase` is mapped to `NSStringCompareOptions.NSCaseInsensitiveSearch | NSStringCompareOptions.NSLiteralSearch`
-There are some behaviour changes. Below are examples of such cases.
+ There are some behaviour changes. Below are examples of such cases.
-| **character 1** | **character 2** | **CompareOptions** | **hybrid globalization** | **icu** | **comments** |
-|:---------------:|:---------------:|--------------------|:------------------------:|:-------:|:-------------------------------------------------------:|
-| `\u3060` だ | `\u30C0` ダ | IgnoreCase | 1 | -1 | hiragana and katakana characters are ordered differently compared to ICU |
-| `\u00C0` À | `a\u0300` à | IgnoreCase | 1 | 0 | This is related to above mentioned case under `CompareOptions.None` i.e. `\u00C0` À != À `A\u0300` |
+ | **character 1** | **character 2** | **CompareOptions** | **hybrid globalization** | **icu** | **comments** |
+ |:---------------:|:---------------:|--------------------|:------------------------:|:-------:|:-------------------------------------------------------:|
+ | `\u3060` だ | `\u30C0` ダ | IgnoreCase | 1 | -1 | hiragana and katakana characters are ordered differently compared to ICU |
- `IgnoreNonSpace`:
-`CompareOptions.IgnoreNonSpace` is mapped to `NSStringCompareOptions.NSDiacriticInsensitiveSearch | NSStringCompareOptions.NSLiteralSearch`
+ `CompareOptions.IgnoreNonSpace` is mapped to `NSStringCompareOptions.NSDiacriticInsensitiveSearch | NSStringCompareOptions.NSLiteralSearch`
- `IgnoreWidth`:
-`CompareOptions.IgnoreWidth` is mapped to `NSStringCompareOptions.NSWidthInsensitiveSearch | NSStringCompareOptions.NSLiteralSearch`
+ `CompareOptions.IgnoreWidth` is mapped to `NSStringCompareOptions.NSWidthInsensitiveSearch | NSStringCompareOptions.NSLiteralSearch`
- All combinations that contain below `CompareOptions` always throw `PlatformNotSupportedException`:
-`IgnoreSymbols`,
+ `IgnoreSymbols`,
+
+ `IgnoreKanaType`,
+
+## String starts with / ends with
+
+Affected public APIs:
+- CompareInfo.IsPrefix
+- CompareInfo.IsSuffix
+- String.StartsWith
+- String.EndsWith
+
+Mapped to Apple Native API `compare:options:range:locale:`(https://developer.apple.com/documentation/foundation/nsstring/1414561-compare?language=objc)
+Apple Native API does not expose locale-sensitive endsWith/startsWith function. As a workaround, both strings get normalized and weightless characters are removed. Resulting strings are cut to the same length and comparison is performed. As we are normalizing strings to be able to cut them, we cannot calculate the match length on the original strings. Methods that calculate this information throw PlatformNotSupported exception:
+
+- [CompareInfo.IsPrefix](https://learn.microsoft.com/dotnet/api/system.globalization.compareinfo.isprefix)
+- [CompareInfo.IsSuffix](https://learn.microsoft.com/dotnet/api/system.globalization.compareinfo.issuffix)
+
+- `IgnoreSymbols`
+
+ As there is no IgnoreSymbols equivalent in NSStringCompareOptions all `CompareOptions` combinations that include `IgnoreSymbols` throw `PlatformNotSupportedException`
+
+## String indexing
+
+Affected public APIs:
+- CompareInfo.IndexOf
+- CompareInfo.LastIndexOf
+- String.IndexOf
+- String.LastIndexOf
+
+Mapped to Apple Native API `rangeOfString:options:range:locale:`(https://developer.apple.com/documentation/foundation/nsstring/1417348-rangeofstring?language=objc)
+
+In `rangeOfString:options:range:locale:` objects are compared by checking the Unicode canonical equivalence of their code point sequences.
+In cases where search string contains diacritics and has different normalization form than in source string result can be incorrect.
+
+Characters in general are represented by unicode code points, and some characters can be represented in a single code point or by combining multiple characters (like diacritics/diaeresis). Normalization Form C will look to compress characters to their single code point format if they were originally represented as a sequence of multiple code points. Normalization Form D does the opposite and expands characters into their multiple code point formats if possible.
+
+`NSString` `rangeOfString:options:range:locale:` uses canonical equivalence to find the position of the `searchString` within the `sourceString`, however, it does not automatically handle comparison of precomposed (single code point representation) or decomposed (most code points representation). Because the `searchString` and `sourceString` can be of differing formats, to properly find the index, we need to ensure that the searchString is in the same form as the sourceString by checking the `rangeOfString:options:range:locale:` using every single normalization form.
+
+Here are the covered cases with diacritics:
+ 1. Search string contains diacritic and has same normalization form as in source string.
+ 2. Search string contains diacritic but with source string they have same letters with different char lengths but substring is normalized in source.
+
+ a. search string `normalizing to form C` is substring of source string. example: search string: `U\u0308` source string: `Source is \u00DC` => matchLength is 1
+
+ b. search string `normalizing to form D` is substring of source string. example: search string: `\u00FC` source string: `Source is \u0075\u0308` => matchLength is 2
+
+Not covered case:
+ Source string's intended substring match containing characters of mixed composition forms cannot be matched by 2. because partial precomposition/decomposition is not performed. example: search string: `U\u0308 and \u00FC` (Ü and ü) source string: `Source is \u00DC and \u0075\u0308` (Source is Ü and ü)
+ as it is visible from example normalizaing search string to form C or D will not help to find substring in source string.
+
+- `IgnoreSymbols`
+
+ As there is no IgnoreSymbols equivalent in NSStringCompareOptions all `CompareOptions` combinations that include `IgnoreSymbols` throw `PlatformNotSupportedException`
+
+- Some letters consist of more than one grapheme.
+
+ Apple Native Api does not guarantee that string will be segmented by letters but by graphemes. E.g. in `cs-CZ` and `sk-SK` "ch" is 1 letter, 2 graphemes. The following code with `HybridGlobalization` switched off returns -1 (not found) while with `HybridGlobalization` switched on, it returns 1.
+
+ ``` C#
+ new CultureInfo("sk-SK").CompareInfo.IndexOf("ch", "h"); // -1 or 1
+ ```
+
+- Some graphemes have multi-grapheme equivalents.
+ E.g. in `de-DE` ß (%u00DF) is one letter and one grapheme and "ss" is one letter and is recognized as two graphemes. Apple Native API's equivalent of `IgnoreNonSpace` treats them as the same letter when comparing. Similar case: dz (%u01F3) and dz.
+
+ Using `IgnoreNonSpace` for these two with `HybridGlobalization` off, also returns 0 (they are equal). However, the workaround used in `HybridGlobalization` will compare them grapheme-by-grapheme and will return -1.
+
+ ``` C#
+ new CultureInfo("de-DE").CompareInfo.IndexOf("strasse", "stra\u00DFe", 0, CompareOptions.IgnoreNonSpace); // 0 or -1
+ ```
+
+
+## SortKey
+
+Affected public APIs:
+- CompareInfo.GetSortKey
+- CompareInfo.GetSortKeyLength
+- CompareInfo.GetHashCode
-`IgnoreKanaType`,
+Apple Native API does not have an equivalent, so they throw `PlatformNotSupportedException`.
\ No newline at end of file
internal static partial class Interop
{
+ internal struct Range
+ {
+ public int Location;
+ public int Length;
+ }
+
internal static partial class Globalization
{
[LibraryImport(Libraries.GlobalizationNative, EntryPoint = "GlobalizationNative_CompareStringNative", StringMarshalling = StringMarshalling.Utf16)]
internal static unsafe partial int CompareStringNative(string localeName, int lNameLen, char* lpStr1, int cwStr1Len, char* lpStr2, int cwStr2Len, CompareOptions options);
+
+ [LibraryImport(Libraries.GlobalizationNative, EntryPoint = "GlobalizationNative_EndsWithNative", StringMarshalling = StringMarshalling.Utf16)]
+ [MethodImpl(MethodImplOptions.NoInlining)]
+ internal static unsafe partial int EndsWithNative(string localeName, int lNameLen, char* target, int cwTargetLength, char* source, int cwSourceLength, CompareOptions options);
+
+ [LibraryImport(Libraries.GlobalizationNative, EntryPoint = "GlobalizationNative_IndexOfNative", StringMarshalling = StringMarshalling.Utf16)]
+ internal static unsafe partial Range IndexOfNative(string localeName, int lNameLen, char* target, int cwTargetLength, char* pSource, int cwSourceLength, CompareOptions options, [MarshalAs(UnmanagedType.Bool)] bool fromBeginning);
+
+ [LibraryImport(Libraries.GlobalizationNative, EntryPoint = "GlobalizationNative_StartsWithNative", StringMarshalling = StringMarshalling.Utf16)]
+ [MethodImpl(MethodImplOptions.NoInlining)]
+ internal static unsafe partial int StartsWithNative(string localeName, int lNameLen, char* target, int cwTargetLength, char* source, int cwSourceLength, CompareOptions options);
}
}
yield return new object[] { s_invariantCompare, "i", "\u0130", CompareOptions.None, -1 };
yield return new object[] { s_invariantCompare, "i", "\u0130", CompareOptions.IgnoreCase, -1 };
- yield return new object[] { s_invariantCompare, "\u00C0", "A\u0300", CompareOptions.None, PlatformDetection.IsHybridGlobalizationOnOSX ? 1 : 0 };
+ yield return new object[] { s_invariantCompare, "\u00C0", "A\u0300", CompareOptions.None, 0 };
yield return new object[] { s_invariantCompare, "\u00C0", "A\u0300", CompareOptions.Ordinal, 1 };
yield return new object[] { s_invariantCompare, "\u00C0", "a\u0300", CompareOptions.None, 1 };
- yield return new object[] { s_invariantCompare, "\u00C0", "a\u0300", CompareOptions.IgnoreCase, PlatformDetection.IsHybridGlobalizationOnOSX ? 1 : 0 };
+ yield return new object[] { s_invariantCompare, "\u00C0", "a\u0300", CompareOptions.IgnoreCase, 0 };
yield return new object[] { s_invariantCompare, "\u00C0", "a\u0300", CompareOptions.Ordinal, 1 };
yield return new object[] { s_invariantCompare, "\u00C0", "a\u0300", CompareOptions.OrdinalIgnoreCase, 1 };
yield return new object[] { s_invariantCompare, "FooBar", "Foo\u0400Bar", CompareOptions.Ordinal, -1 };
yield return new object[] { s_invariantCompare, "foobardzsdzs", "rddzs", 0, 12, CompareOptions.Ordinal, -1, 0 };
// Slovak
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
{
yield return new object[] { s_slovakCompare, "ch", "h", 0, 2, CompareOptions.None, -1, 0 };
// Android has its own ICU, which doesn't work well with slovak
yield return new object[] { s_invariantCompare, "hello", "\u200d", 1, 3, CompareOptions.IgnoreCase, 1, 0 };
// Ignore symbols
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
yield return new object[] { s_invariantCompare, "More Test's", "Tests", 0, 11, CompareOptions.IgnoreSymbols, 5, 6 };
yield return new object[] { s_invariantCompare, "More Test's", "Tests", 0, 11, CompareOptions.None, -1, 0 };
yield return new object[] { s_invariantCompare, "cbabababdbaba", "ab", 0, 13, CompareOptions.None, 2, 2 };
{
yield return new object[] { s_germanCompare, "abc Strasse Strasse xyz", "stra\u00DFe", 0, 23, supportedIgnoreCaseIgnoreNonSpaceOptions, 4, 7 };
yield return new object[] { s_germanCompare, "abc stra\u00DFe stra\u00DFe xyz", "Strasse", 0, 21, supportedIgnoreCaseIgnoreNonSpaceOptions, 4, 6 };
- yield return new object[] { s_invariantCompare, "abcdzxyz", "\u01F3", 0, 8, supportedIgnoreNonSpaceOption, 3, 2 };
- yield return new object[] { s_invariantCompare, "abc\u01F3xyz", "dz", 0, 7, supportedIgnoreNonSpaceOption, 3, 1 };
+ if (!PlatformDetection.IsHybridGlobalizationOnOSX)
+ {
+ yield return new object[] { s_invariantCompare, "abcdzxyz", "\u01F3", 0, 8, supportedIgnoreNonSpaceOption, 3, 2 };
+ yield return new object[] { s_invariantCompare, "abc\u01F3xyz", "dz", 0, 7, supportedIgnoreNonSpaceOption, 3, 1 };
+ }
}
yield return new object[] { s_germanCompare, "abc Strasse Strasse xyz", "xtra\u00DFe", 0, 23, supportedIgnoreCaseIgnoreNonSpaceOptions, -1, 0 };
yield return new object[] { s_germanCompare, "abc stra\u00DFe stra\u00DFe xyz", "Xtrasse", 0, 21, supportedIgnoreCaseIgnoreNonSpaceOptions, -1, 0 };
yield return new object[] { s_invariantCompare, "dzsdzsfoobar", "ddzsf", CompareOptions.Ordinal, false, 0 };
yield return new object[] { s_hungarianCompare, "dzsdzsfoobar", "ddzsf", CompareOptions.Ordinal, false, 0 };
yield return new object[] { s_invariantCompare, "dz", "d", CompareOptions.None, true, 1 };
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
yield return new object[] { s_hungarianCompare, "dz", "d", CompareOptions.None, false, 0 };
yield return new object[] { s_hungarianCompare, "dz", "d", CompareOptions.Ordinal, true, 1 };
if (!PlatformDetection.IsAndroid && !PlatformDetection.IsLinuxBionic)
{
yield return new object[] { s_turkishCompare, "interesting", "I", CompareOptions.IgnoreCase, false, 0 };
- yield return new object[] { s_turkishCompare, "interesting", "\u0130", CompareOptions.IgnoreCase, true, 1 };
+ if (!PlatformDetection.IsHybridGlobalizationOnOSX)
+ yield return new object[] { s_turkishCompare, "interesting", "\u0130", CompareOptions.IgnoreCase, true, 1 };
}
yield return new object[] { s_turkishCompare, "interesting", "\u0130", CompareOptions.None, false, 0 };
yield return new object[] { s_invariantCompare, "interesting", "I", CompareOptions.IgnoreCase, true, 1 };
yield return new object[] { s_invariantCompare, "\uD800\uD800", "\uD800\uD800", CompareOptions.None, true, 2 };
// Ignore symbols
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
{
yield return new object[] { s_invariantCompare, "Test's can be interesting", "Tests", CompareOptions.IgnoreSymbols, true, 6 };
yield return new object[] { s_invariantCompare, "Test's can be interesting", "Tests", CompareOptions.None, false, 0 };
(PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsBrowserDomSupportedOrNodeJS);
if (behavesLikeNls)
{
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
{
yield return new object[] { s_hungarianCompare, "dzsdzsfoobar", "ddzsf", CompareOptions.None, true, 7 };
yield return new object[] { s_invariantCompare, "''Tests", "Tests", CompareOptions.IgnoreSymbols, true, 7 };
else
{
yield return new object[] { s_hungarianCompare, "dzsdzsfoobar", "ddzsf", CompareOptions.None, false, 0 };
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
yield return new object[] { s_invariantCompare, "''Tests", "Tests", CompareOptions.IgnoreSymbols, false, 0 };
yield return new object[] { s_frenchCompare, "\u0153", "oe", CompareOptions.None, false, 0 };
- yield return new object[] { s_invariantCompare, "\uD800\uDC00", "\uD800", CompareOptions.None, false, 0 };
- yield return new object[] { s_invariantCompare, "\uD800\uDC00", "\uD800", CompareOptions.IgnoreCase, false, 0 };
+ if (!PlatformDetection.IsHybridGlobalizationOnOSX)
+ {
+ yield return new object[] { s_invariantCompare, "\uD800\uDC00", "\uD800", CompareOptions.None, false, 0 };
+ yield return new object[] { s_invariantCompare, "\uD800\uDC00", "\uD800", CompareOptions.IgnoreCase, false, 0 };
+ }
}
// ICU bugs
}
// Prefixes where matched length does not equal value string length
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
{
yield return new object[] { s_invariantCompare, "dzxyz", "\u01F3", supportedIgnoreNonSpaceOption, true, 2 };
yield return new object[] { s_invariantCompare, "\u01F3xyz", "dz", supportedIgnoreNonSpaceOption, true, 1 };
valueBoundedMemory.MakeReadonly();
Assert.Equal(expected, compareInfo.IsPrefix(sourceBoundedMemory.Span, valueBoundedMemory.Span, options));
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
{
Assert.Equal(expected, compareInfo.IsPrefix(sourceBoundedMemory.Span, valueBoundedMemory.Span, options, out int actualMatchLength));
Assert.Equal(expectedMatchLength, actualMatchLength);
yield return new object[] { s_invariantCompare, "foobardzsdzs", "rddzs", CompareOptions.None, false, 0 };
yield return new object[] { s_invariantCompare, "foobardzsdzs", "rddzs", CompareOptions.Ordinal, false, 0 };
yield return new object[] { s_invariantCompare, "dz", "z", CompareOptions.None, true, 1 };
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
yield return new object[] { s_hungarianCompare, "dz", "z", CompareOptions.None, false, 0 };
yield return new object[] { s_hungarianCompare, "dz", "z", CompareOptions.Ordinal, true, 1 };
// Slovak
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
{
yield return new object[] { s_slovakCompare, "ch", "h", CompareOptions.None, false, 0 };
yield return new object[] { s_slovakCompare, "velmi chora", "hora", CompareOptions.None, false, 0 };
yield return new object[] { s_invariantCompare, "\uD800\uD800", "\uD800\uD800", CompareOptions.None, true, 2 };
// Ignore symbols
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
{
yield return new object[] { s_invariantCompare, "More Test's", "Tests", CompareOptions.IgnoreSymbols, true, 6 };
yield return new object[] { s_invariantCompare, "More Test's", "Tests", CompareOptions.None, false, 0 };
{
yield return new object[] { s_hungarianCompare, "foobardzsdzs", "rddzs", CompareOptions.None, false, 0 };
yield return new object[] { s_frenchCompare, "\u0153", "oe", CompareOptions.None, false, 0 };
- yield return new object[] { s_invariantCompare, "\uD800\uDC00", "\uDC00", CompareOptions.None, false, 0 };
- yield return new object[] { s_invariantCompare, "\uD800\uDC00", "\uDC00", CompareOptions.IgnoreCase, false, 0 };
+ if (!PlatformDetection.IsHybridGlobalizationOnOSX)
+ {
+ yield return new object[] { s_invariantCompare, "\uD800\uDC00", "\uDC00", CompareOptions.None, false, 0 };
+ yield return new object[] { s_invariantCompare, "\uD800\uDC00", "\uDC00", CompareOptions.IgnoreCase, false, 0 };
+ }
}
// Suffixes where matched length does not equal value string length
yield return new object[] { s_germanCompare, "xyz Strasse", "xtra\u00DFe", supportedIgnoreCaseIgnoreNonSpaceOptions, false, 0 };
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
{
yield return new object[] { s_invariantCompare, "xyzdz", "\u01F3", supportedIgnoreNonSpaceOption, true, 2 };
yield return new object[] { s_invariantCompare, "xyz\u01F3", "dz", supportedIgnoreNonSpaceOption, true, 1 };
valueBoundedMemory.MakeReadonly();
Assert.Equal(expected, compareInfo.IsSuffix(sourceBoundedMemory.Span, valueBoundedMemory.Span, options));
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
{
Assert.Equal(expected, compareInfo.IsSuffix(sourceBoundedMemory.Span, valueBoundedMemory.Span, options, out int actualMatchLength));
Assert.Equal(expectedMatchLength, actualMatchLength);
// Slovak
yield return new object[] { s_slovakCompare, "ch", "h", 0, 1, CompareOptions.None, -1, 0 };
// Android has its own ICU, which doesn't work well with slovak
- if (!PlatformDetection.IsAndroid && !PlatformDetection.IsLinuxBionic && !PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsAndroid && !PlatformDetection.IsLinuxBionic && !PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
{
yield return new object[] { s_slovakCompare, "hore chodit", "HO", 11, 12, CompareOptions.IgnoreCase, 0, 2 };
}
yield return new object[] { s_invariantCompare, "AA\u200DA", "\u200d", 3, 4, CompareOptions.None, 4, 0};
// Ignore symbols
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
yield return new object[] { s_invariantCompare, "More Test's", "Tests", 10, 11, CompareOptions.IgnoreSymbols, 5, 6 };
yield return new object[] { s_invariantCompare, "More Test's", "Tests", 10, 11, CompareOptions.None, -1, 0 };
yield return new object[] { s_invariantCompare, "cbabababdbaba", "ab", 12, 13, CompareOptions.None, 10, 2 };
}
// Inputs where matched length does not equal value string length
- if (!PlatformDetection.IsHybridGlobalizationOnBrowser)
+ if (!PlatformDetection.IsHybridGlobalizationOnBrowser && !PlatformDetection.IsHybridGlobalizationOnOSX)
{
yield return new object[] { s_germanCompare, "abc Strasse Strasse xyz", "stra\u00DFe", 22, 23, supportedIgnoreCaseIgnoreNonSpaceOptions, 12, 7 };
yield return new object[] { s_germanCompare, "abc stra\u00DFe stra\u00DFe xyz", "Strasse", 20, 21, supportedIgnoreCaseIgnoreNonSpaceOptions, 11, 6 };
<Compile Include="..\NumberFormatInfo\NumberFormatInfoPercentPositivePattern.cs" />
<Compile Include="..\CompareInfo\CompareInfoTestsBase.cs" />
<Compile Include="..\CompareInfo\CompareInfoTests.Compare.cs" />
+ <Compile Include="..\CompareInfo\CompareInfoTests.IndexOf.cs" />
+ <Compile Include="..\CompareInfo\CompareInfoTests.LastIndexOf.cs" />
+ <Compile Include="..\CompareInfo\CompareInfoTests.IsPrefix.cs" />
+ <Compile Include="..\CompareInfo\CompareInfoTests.IsSuffix.cs" />
</ItemGroup>
</Project>
<data name="PlatformNotSupported_HybridGlobalizationWithCompareOptions" xml:space="preserve">
<value>CompareOptions = {0} are not supported when HybridGlobalization=true on this platform. Disable it to load larger ICU bundle, then use this option.</value>
</data>
+ <data name="PlatformNotSupported_HybridGlobalizationWithMixedCompositions" xml:space="preserve">
+ <value>Mixed compositions in string not supported when HybridGlobalization=true on this platform. Disable it to load larger ICU bundle, then use this option.</value>
+ </data>
<data name="PlatformNotSupported_HybridGlobalizationWithCompareOptionsForCulture" xml:space="preserve">
<value>CompareOptions = {0} are not supported for culture = {1} when HybridGlobalization=true on this platform. Disable it to load larger ICU bundle, then use this option.</value>
</data>
{
_isAsciiEqualityOrdinal = GetIsAsciiEqualityOrdinal(interopCultureName);
if (!GlobalizationMode.Invariant)
+ {
+#if TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS || TARGET_BROWSER
+ if (GlobalizationMode.Hybrid)
+ return;
+#endif
_sortHandle = SortHandleCache.GetCachedSortHandle(interopCultureName);
+ }
}
private bool GetIsAsciiEqualityOrdinal(string interopCultureName)
fixed (char* pSource = &MemoryMarshal.GetReference(source))
fixed (char* pTarget = &MemoryMarshal.GetReference(target))
{
+#if TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
+ if (GlobalizationMode.Hybrid)
+ return IndexOfCoreNative(pTarget, target.Length, pSource, source.Length, options, fromBeginning, matchLengthPtr);
+#endif
if (fromBeginning)
return Interop.Globalization.IndexOf(_sortHandle, pTarget, target.Length, pSource, source.Length, options, matchLengthPtr);
else
throw new Exception((string)ex_result);
return result;
}
+#elif TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
+ if (GlobalizationMode.Hybrid)
+ return IndexOfCoreNative(b, target.Length, a, source.Length, options, fromBeginning, matchLengthPtr);
#endif
if (fromBeginning)
return Interop.Globalization.IndexOf(_sortHandle, b, target.Length, a, source.Length, options, matchLengthPtr);
throw new Exception((string)ex_result);
return result;
}
+#elif TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
+ if (GlobalizationMode.Hybrid)
+ return IndexOfCoreNative(b, target.Length, a, source.Length, options, fromBeginning, matchLengthPtr);
#endif
if (fromBeginning)
return Interop.Globalization.IndexOf(_sortHandle, b, target.Length, a, source.Length, options, matchLengthPtr);
fixed (char* pSource = &MemoryMarshal.GetReference(source)) // could be null (or otherwise unable to be dereferenced)
fixed (char* pPrefix = &MemoryMarshal.GetReference(prefix))
{
+#if TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
+ if (GlobalizationMode.Hybrid)
+ return NativeStartsWith(pPrefix, prefix.Length, pSource, source.Length, options);
+#endif
return Interop.Globalization.StartsWith(_sortHandle, pPrefix, prefix.Length, pSource, source.Length, options, matchLengthPtr);
}
}
return true;
InteropCall:
+#if TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
+ if (GlobalizationMode.Hybrid)
+ return NativeStartsWith(bp, prefix.Length, ap, source.Length, options);
+#endif
return Interop.Globalization.StartsWith(_sortHandle, bp, prefix.Length, ap, source.Length, options, matchLengthPtr);
}
}
return true;
InteropCall:
+#if TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
+ if (GlobalizationMode.Hybrid)
+ return NativeStartsWith(bp, prefix.Length, ap, source.Length, options);
+#endif
return Interop.Globalization.StartsWith(_sortHandle, bp, prefix.Length, ap, source.Length, options, matchLengthPtr);
}
}
fixed (char* pSource = &MemoryMarshal.GetReference(source)) // could be null (or otherwise unable to be dereferenced)
fixed (char* pSuffix = &MemoryMarshal.GetReference(suffix))
{
+#if TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
+ if (GlobalizationMode.Hybrid)
+ return NativeEndsWith(pSuffix, suffix.Length, pSource, source.Length, options);
+#endif
return Interop.Globalization.EndsWith(_sortHandle, pSuffix, suffix.Length, pSource, source.Length, options, matchLengthPtr);
}
}
return true;
InteropCall:
+#if TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
+ if (GlobalizationMode.Hybrid)
+ return NativeEndsWith(bp, suffix.Length, ap, source.Length, options);
+#endif
return Interop.Globalization.EndsWith(_sortHandle, bp, suffix.Length, ap, source.Length, options, matchLengthPtr);
}
}
return true;
InteropCall:
+#if TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
+ if (GlobalizationMode.Hybrid)
+ return NativeEndsWith(bp, suffix.Length, ap, source.Length, options);
+#endif
return Interop.Globalization.EndsWith(_sortHandle, bp, suffix.Length, ap, source.Length, options, matchLengthPtr);
}
}
return result;
}
+ private unsafe int IndexOfCoreNative(char* target, int cwTargetLength, char* pSource, int cwSourceLength, CompareOptions options, bool fromBeginning, int* matchLengthPtr)
+ {
+ AssertComparisonSupported(options);
+
+ Interop.Range result = Interop.Globalization.IndexOfNative(m_name, m_name.Length, target, cwTargetLength, pSource, cwSourceLength, options, fromBeginning);
+ Debug.Assert(result.Location != -2);
+ if (result.Location == -3)
+ throw new PlatformNotSupportedException(SR.PlatformNotSupported_HybridGlobalizationWithMixedCompositions);
+ if (matchLengthPtr != null)
+ *matchLengthPtr = result.Length;
+
+ return result.Location;
+ }
+
+ private unsafe bool NativeStartsWith(char* pPrefix, int cwPrefixLength, char* pSource, int cwSourceLength, CompareOptions options)
+ {
+ AssertComparisonSupported(options);
+
+ int result = Interop.Globalization.StartsWithNative(m_name, m_name.Length, pPrefix, cwPrefixLength, pSource, cwSourceLength, options);
+ Debug.Assert(result != -2);
+
+ return result > 0 ? true : false;
+ }
+
+ private unsafe bool NativeEndsWith(char* pSuffix, int cwSuffixLength, char* pSource, int cwSourceLength, CompareOptions options)
+ {
+ AssertComparisonSupported(options);
+
+ int result = Interop.Globalization.EndsWithNative(m_name, m_name.Length, pSuffix, cwSuffixLength, pSource, cwSourceLength, options);
+ Debug.Assert(result != -2);
+
+ return result > 0 ? true : false;
+ }
+
private static void AssertComparisonSupported(CompareOptions options)
{
if ((options | SupportedCompareOptions) != SupportedCompareOptions)
{
public partial class CompareInfo
{
- private void JsInit(string interopCultureName)
- {
- _isAsciiEqualityOrdinal = GetIsAsciiEqualityOrdinal(interopCultureName);
- }
-
private static void AssertHybridOnWasm(CompareOptions options)
{
Debug.Assert(!GlobalizationMode.Invariant);
{
_sortName = culture.SortName;
-#if TARGET_BROWSER
- if (GlobalizationMode.Hybrid)
- {
- JsInit(culture.InteropName!);
- return;
- }
-#endif
if (GlobalizationMode.UseNls)
{
NlsInitSortHandle();
else
{
// Linguistic comparison requested and we don't need to special-case any args.
-#if TARGET_BROWSER
+#if TARGET_BROWSER || TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
if (GlobalizationMode.Hybrid)
{
throw new PlatformNotSupportedException(SR.PlatformNotSupported_HybridGlobalizationWithMatchLength);
else
{
// Linguistic comparison requested and we don't need to special-case any args.
-#if TARGET_BROWSER
+#if TARGET_BROWSER || TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
if (GlobalizationMode.Hybrid)
{
throw new PlatformNotSupportedException(SR.PlatformNotSupported_HybridGlobalizationWithMatchLength);
private SortKey CreateSortKeyCore(string source, CompareOptions options) =>
GlobalizationMode.UseNls ?
NlsCreateSortKey(source, options) :
-#if TARGET_BROWSER
+#if TARGET_BROWSER || TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
GlobalizationMode.Hybrid ?
throw new PlatformNotSupportedException(GetPNSEText("SortKey")) :
#endif
private int GetSortKeyCore(ReadOnlySpan<char> source, Span<byte> destination, CompareOptions options) =>
GlobalizationMode.UseNls ?
NlsGetSortKey(source, destination, options) :
-#if TARGET_BROWSER
+#if TARGET_BROWSER || TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
GlobalizationMode.Hybrid ?
throw new PlatformNotSupportedException(GetPNSEText("SortKey")) :
#endif
private int GetSortKeyLengthCore(ReadOnlySpan<char> source, CompareOptions options) =>
GlobalizationMode.UseNls ?
NlsGetSortKeyLength(source, options) :
-#if TARGET_BROWSER
+#if TARGET_BROWSER || TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
GlobalizationMode.Hybrid ?
throw new PlatformNotSupportedException(GetPNSEText("SortKey")) :
#endif
private unsafe int GetHashCodeOfStringCore(ReadOnlySpan<char> source, CompareOptions options) =>
GlobalizationMode.UseNls ?
NlsGetHashCodeOfString(source, options) :
-#if TARGET_BROWSER
+#if TARGET_BROWSER || TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
GlobalizationMode.Hybrid ?
throw new PlatformNotSupportedException(GetPNSEText("HashCode")) :
#endif
}
else
{
-#if TARGET_BROWSER
+#if TARGET_BROWSER || TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
if (GlobalizationMode.Hybrid)
{
throw new PlatformNotSupportedException(GetPNSEText("SortVersion"));
public int LCID => CultureInfo.GetCultureInfo(Name).LCID;
-#if TARGET_BROWSER
+#if TARGET_BROWSER || TARGET_OSX || TARGET_MACCATALYST || TARGET_IOS || TARGET_TVOS
private static string GetPNSEText(string funcName) => SR.Format(SR.PlatformNotSupported_HybridGlobalization, funcName);
#endif
}
DllImportEntry(GlobalizationNative_GetLocaleInfoPrimaryGroupingSizeNative)
DllImportEntry(GlobalizationNative_GetLocaleInfoSecondaryGroupingSizeNative)
DllImportEntry(GlobalizationNative_GetLocaleTimeFormatNative)
+ DllImportEntry(GlobalizationNative_IndexOfNative)
+ DllImportEntry(GlobalizationNative_StartsWithNative)
+ DllImportEntry(GlobalizationNative_EndsWithNative)
#endif
};
#include "pal_errors.h"
typedef struct SortHandle SortHandle;
+typedef struct _Range {
+ int32_t location;
+ int32_t length;
+} Range;
PALEXPORT ResultCode GlobalizationNative_GetSortHandle(const char* lpLocaleName, SortHandle** ppSortHandle);
#ifdef __APPLE__
PALEXPORT int32_t GlobalizationNative_CompareStringNative(const uint16_t* localeName,
int32_t lNameLength,
- const uint16_t* lpStr1,
- int32_t cwStr1Length,
- const uint16_t* lpStr2,
- int32_t cwStr2Length,
+ const uint16_t* lpTarget,
+ int32_t cwTargetLength,
+ const uint16_t* lpSource,
+ int32_t cwSourceLength,
int32_t options);
+
+PALEXPORT Range GlobalizationNative_IndexOfNative(const uint16_t* localeName,
+ int32_t lNameLength,
+ const uint16_t* lpTarget,
+ int32_t cwTargetLength,
+ const uint16_t* lpSource,
+ int32_t cwSourceLength,
+ int32_t options,
+ int32_t fromBeginning);
+
+PALEXPORT int32_t GlobalizationNative_StartsWithNative(const uint16_t* localeName,
+ int32_t lNameLength,
+ const uint16_t* lpPrefix,
+ int32_t cwPrefixLength,
+ const uint16_t* lpSource,
+ int32_t cwSourceLength,
+ int32_t options);
+
+PALEXPORT int32_t GlobalizationNative_EndsWithNative(const uint16_t* localeName,
+ int32_t lNameLength,
+ const uint16_t* lpSuffix,
+ int32_t cwSuffixLength,
+ const uint16_t* lpSource,
+ int32_t cwSourceLength,
+ int32_t options);
+
#endif
StringSort = 536870912,
} CompareOptions;
+static NSLocale* GetCurrentLocale(const uint16_t* localeName, int32_t lNameLength)
+{
+ NSLocale *currentLocale;
+ if(localeName == NULL || lNameLength == 0)
+ {
+ currentLocale = [NSLocale systemLocale];
+ }
+ else
+ {
+ NSString *locName = [NSString stringWithCharacters: localeName length: lNameLength];
+ currentLocale = [NSLocale localeWithLocaleIdentifier:locName];
+ }
+ return currentLocale;
+}
+
static NSStringCompareOptions ConvertFromCompareOptionsToNSStringCompareOptions(int32_t comparisonOptions)
{
int32_t supportedOptions = None | IgnoreCase | IgnoreNonSpace | IgnoreWidth | StringSort;
Function:
CompareString
*/
-int32_t GlobalizationNative_CompareStringNative(const uint16_t* localeName, int32_t lNameLength, const uint16_t* lpStr1, int32_t cwStr1Length,
- const uint16_t* lpStr2, int32_t cwStr2Length, int32_t comparisonOptions)
+int32_t GlobalizationNative_CompareStringNative(const uint16_t* localeName, int32_t lNameLength, const uint16_t* lpSource, int32_t cwSourceLength,
+ const uint16_t* lpTarget, int32_t cwTargetLength, int32_t comparisonOptions)
{
- NSLocale *currentLocale;
- if(localeName == NULL || lNameLength == 0)
+ NSLocale *currentLocale = GetCurrentLocale(localeName, lNameLength);
+ NSString *sourceString = [NSString stringWithCharacters: lpSource length: cwSourceLength];
+ NSString *sourceStrPrecomposed = sourceString.precomposedStringWithCanonicalMapping;
+ NSString *targetString = [NSString stringWithCharacters: lpTarget length: cwTargetLength];
+ NSString *targetStrPrecomposed = targetString.precomposedStringWithCanonicalMapping;
+
+ NSRange comparisonRange = NSMakeRange(0, sourceStrPrecomposed.length);
+ NSStringCompareOptions options = ConvertFromCompareOptionsToNSStringCompareOptions(comparisonOptions);
+
+ // in case mapping is not found
+ if (options == 0)
+ return -2;
+
+ return [sourceStrPrecomposed compare:targetStrPrecomposed
+ options:options
+ range:comparisonRange
+ locale:currentLocale];
+}
+
+static NSString* RemoveWeightlessCharacters(NSString* source)
+{
+ NSError *error = nil;
+ NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"[\u200B-\u200D\uFEFF\0]" options:NSRegularExpressionCaseInsensitive error:&error];
+
+ if (error != nil)
+ return source;
+
+ NSString *modifiedString = [regex stringByReplacingMatchesInString:source options:0 range:NSMakeRange(0, [source length]) withTemplate:@""];
+
+ return modifiedString;
+}
+
+static int32_t IsIndexFound(int32_t fromBeginning, int32_t foundLocation, int32_t newLocation)
+{
+ // last index
+ if (!fromBeginning && foundLocation > newLocation)
+ return 1;
+ // first index
+ if (fromBeginning && foundLocation > 0 && foundLocation < newLocation)
+ return 1;
+ return 0;
+}
+
+/*
+Function: IndexOf
+Find detailed explanation how this function works in https://github.com/dotnet/runtime/blob/main/docs/design/features/globalization-hybrid-mode.md
+*/
+Range GlobalizationNative_IndexOfNative(const uint16_t* localeName, int32_t lNameLength, const uint16_t* lpTarget, int32_t cwTargetLength,
+ const uint16_t* lpSource, int32_t cwSourceLength, int32_t comparisonOptions, int32_t fromBeginning)
+{
+ assert(cwTargetLength >= 0);
+ Range result = {-2, 0};
+ NSStringCompareOptions options = ConvertFromCompareOptionsToNSStringCompareOptions(comparisonOptions);
+
+ // in case mapping is not found
+ if (options == 0)
+ return result;
+
+ NSString *searchString = [NSString stringWithCharacters: lpTarget length: cwTargetLength];
+ NSString *searchStrCleaned = RemoveWeightlessCharacters(searchString);
+ NSString *sourceString = [NSString stringWithCharacters: lpSource length: cwSourceLength];
+ NSString *sourceStrCleaned = RemoveWeightlessCharacters(sourceString);
+
+ if (sourceStrCleaned.length == 0 || searchStrCleaned.length == 0)
{
- currentLocale = [NSLocale systemLocale];
+ result.location = fromBeginning ? 0 : sourceString.length;
+ return result;
}
- else
+
+ NSLocale *currentLocale = GetCurrentLocale(localeName, lNameLength);
+ NSString *searchStrPrecomposed = searchStrCleaned.precomposedStringWithCanonicalMapping;
+ NSString *sourceStrPrecomposed = sourceStrCleaned.precomposedStringWithCanonicalMapping;
+
+ // last index
+ if (!fromBeginning)
+ options |= NSBackwardsSearch;
+
+ // check if there is a possible match and return -1 if not
+ // doesn't matter which normalization form is used here
+ NSRange rangeOfReceiverToSearch = NSMakeRange(0, sourceStrPrecomposed.length);
+ NSRange containsRange = [sourceStrPrecomposed rangeOfString:searchStrPrecomposed
+ options:options
+ range:rangeOfReceiverToSearch
+ locale:currentLocale];
+
+ if (containsRange.location == NSNotFound)
+ return result;
+
+ // in case search string is inside source string but we can't find the index return -3
+ result.location = -3;
+ // sourceString and searchString possibly have the same composition of characters
+ rangeOfReceiverToSearch = NSMakeRange(0, sourceStrCleaned.length);
+ NSRange nsRange = [sourceStrCleaned rangeOfString:searchStrCleaned
+ options:options
+ range:rangeOfReceiverToSearch
+ locale:currentLocale];
+
+ if (nsRange.location != NSNotFound)
+ {
+ result.location = nsRange.location;
+ result.length = nsRange.length;
+ // in case of CompareOptions.IgnoreCase if letters have different representations in source and search strings
+ // and case insensitive search appears more than one time in source string take last index for LastIndexOf and first index for IndexOf
+ // e.g. new CultureInfo().CompareInfo.LastIndexOf("Is \u0055\u0308 or \u0075\u0308 the same as \u00DC or \u00FC?", "U\u0308", 25,18, CompareOptions.IgnoreCase);
+ // should return 24 but here it will be 9
+ if (!(comparisonOptions & IgnoreCase))
+ return result;
+ }
+
+ // check if sourceString has precomposed form of characters and searchString has decomposed form of characters
+ // convert searchString to a precomposed form
+ NSRange precomposedRange = [sourceStrCleaned rangeOfString:searchStrPrecomposed
+ options:options
+ range:rangeOfReceiverToSearch
+ locale:currentLocale];
+
+ if (precomposedRange.location != NSNotFound)
{
- NSString *locName = [NSString stringWithCharacters: localeName length: lNameLength];
- currentLocale = [[NSLocale alloc] initWithLocaleIdentifier:locName];
+ // in case of CompareOptions.IgnoreCase if letters have different representations in source and search strings
+ // and search appears more than one time in source string take last index for LastIndexOf and first index for IndexOf
+ // e.g. new CultureInfo().CompareInfo.LastIndexOf("Is \u0055\u0308 or \u0075\u0308 the same as \u00DC or \u00FC?", "U\u0308", 25,18, CompareOptions.IgnoreCase);
+ // this will return 24
+ if ((comparisonOptions & IgnoreCase) && IsIndexFound(fromBeginning, (int32_t)result.location, (int32_t)precomposedRange.location))
+ return result;
+
+ result.location = precomposedRange.location;
+ result.length = precomposedRange.length;
+ if (!(comparisonOptions & IgnoreCase))
+ return result;
}
- NSString *firstString = [NSString stringWithCharacters: lpStr1 length: cwStr1Length];
- NSString *secondString = [NSString stringWithCharacters: lpStr2 length: cwStr2Length];
- NSRange string1Range = NSMakeRange(0, cwStr1Length);
+ // check if sourceString has decomposed form of characters and searchString has precomposed form of characters
+ // convert searchString to a decomposed form
+ NSString *searchStrDecomposed = searchStrCleaned.decomposedStringWithCanonicalMapping;
+ NSRange decomposedRange = [sourceStrCleaned rangeOfString:searchStrDecomposed
+ options:options
+ range:rangeOfReceiverToSearch
+ locale:currentLocale];
+
+ if (decomposedRange.location != NSNotFound)
+ {
+ if ((comparisonOptions & IgnoreCase) && IsIndexFound(fromBeginning, (int32_t)result.location, (int32_t)decomposedRange.location))
+ return result;
+
+ result.location = decomposedRange.location;
+ result.length = decomposedRange.length;
+ return result;
+ }
+
+ return result;
+}
+
+/*
+ Return value is a "Win32 BOOL" (1 = true, 0 = false)
+ */
+int32_t GlobalizationNative_StartsWithNative(const uint16_t* localeName, int32_t lNameLength, const uint16_t* lpPrefix, int32_t cwPrefixLength,
+ const uint16_t* lpSource, int32_t cwSourceLength, int32_t comparisonOptions)
+{
NSStringCompareOptions options = ConvertFromCompareOptionsToNSStringCompareOptions(comparisonOptions);
// in case mapping is not found
if (options == 0)
return -2;
+
+ NSLocale *currentLocale = GetCurrentLocale(localeName, lNameLength);
+ NSString *prefixString = [NSString stringWithCharacters: lpPrefix length: cwPrefixLength];
+ NSString *prefixStrComposed = RemoveWeightlessCharacters(prefixString.precomposedStringWithCanonicalMapping);
+ NSString *sourceString = [NSString stringWithCharacters: lpSource length: cwSourceLength];
+ NSString *sourceStrComposed = RemoveWeightlessCharacters(sourceString.precomposedStringWithCanonicalMapping);
+
+ NSRange sourceRange = NSMakeRange(0, prefixStrComposed.length > sourceStrComposed.length ? sourceStrComposed.length : prefixStrComposed.length);
- return [firstString compare:secondString
- options:options
- range:string1Range
- locale:currentLocale];
+ int32_t result = [sourceStrComposed compare:prefixStrComposed
+ options:options
+ range:sourceRange
+ locale:currentLocale];
+ return result == NSOrderedSame ? 1 : 0;
+}
+
+/*
+ Return value is a "Win32 BOOL" (1 = true, 0 = false)
+ */
+int32_t GlobalizationNative_EndsWithNative(const uint16_t* localeName, int32_t lNameLength, const uint16_t* lpSuffix, int32_t cwSuffixLength,
+ const uint16_t* lpSource, int32_t cwSourceLength, int32_t comparisonOptions)
+{
+ NSStringCompareOptions options = ConvertFromCompareOptionsToNSStringCompareOptions(comparisonOptions);
+
+ // in case mapping is not found
+ if (options == 0)
+ return -2;
+
+ NSLocale *currentLocale = GetCurrentLocale(localeName, lNameLength);
+ NSString *suffixString = [NSString stringWithCharacters: lpSuffix length: cwSuffixLength];
+ NSString *suffixStrComposed = RemoveWeightlessCharacters(suffixString.precomposedStringWithCanonicalMapping);
+ NSString *sourceString = [NSString stringWithCharacters: lpSource length: cwSourceLength];
+ NSString *sourceStrComposed = RemoveWeightlessCharacters(sourceString.precomposedStringWithCanonicalMapping);
+ int32_t startIndex = suffixStrComposed.length > sourceStrComposed.length ? 0 : sourceStrComposed.length - suffixStrComposed.length;
+ NSRange sourceRange = NSMakeRange(startIndex, sourceStrComposed.length - startIndex);
+
+ int32_t result = [sourceStrComposed compare:suffixStrComposed
+ options:options
+ range:sourceRange
+ locale:currentLocale];
+ return result == NSOrderedSame ? 1 : 0;
}
#endif
projects / platform / upstream / dotnet / runtime.git / commitdiff