Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Core / CSharp / MS / Internal / Classification.cs / 1 / Classification.cs
//------------------------------------------------------------------------
//
// Microsoft Windows Client Platform
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// File: Classification.cs
//
// Contents: Unicode classification entry point
//
// Created: 7-14-2002 Tarek Mahmoud Sayed ([....])
//
//-----------------------------------------------------------------------
using System;
using System.Diagnostics;
using MS.Internal;
using System.Windows;
using System.Security;
using System.Collections;
using System.Runtime.InteropServices;
using System.Windows.Media.TextFormatting;
namespace MS.Internal
{
///
/// Hold the classification table pointers.
///
internal static class Classification
{
///
/// This structure has a cloned one in the unmanaged side. Doing any change in this
/// structure should have the same change on unmanaged side too.
///
[StructLayout(LayoutKind.Sequential)]
internal unsafe struct CombiningMarksClassificationData
{
internal IntPtr CombiningCharsIndexes; // Two dimentional array of base char classes,
internal int CombiningCharsIndexesTableLength;
internal int CombiningCharsIndexesTableSegmentLength;
internal IntPtr CombiningMarkIndexes; // Combining mark classes array, with length = length
internal int CombiningMarkIndexesTableLength;
internal IntPtr CombinationChars; // Two dimentional array of combined characters
internal int CombinationCharsBaseCount;
internal int CombinationCharsMarkCount;
}
///
/// This structure has a cloned one in the unmanaged side. doing any change in that
/// structure should have same change in the unmanaged side too.
///
[StructLayout(LayoutKind.Sequential)]
internal unsafe struct RawClassificationTables
{
internal IntPtr UnicodeClasses;
internal IntPtr CharacterAttributes;
internal IntPtr Mirroring;
internal CombiningMarksClassificationData CombiningMarksClassification;
};
///
/// Critical - as this code performs an elevation.
/// Safe - This is an entry point that grabs several RO shared pages for text layout
/// purpose. Reading it directly won't yield any readable content to the reader, nor
/// will it yield any useful information to outside world as these are just loads of
/// Unicode classification hex data that only Text engine knows how to use – hence,
/// not an Information Disclosure threat.
///
[SecurityCritical, SecurityTreatAsSafe]
[SuppressUnmanagedCodeSecurity]
[DllImport(Microsoft.Internal.DllImport.PresentationNative, EntryPoint="MILGetClassificationTables")]
internal static extern void MILGetClassificationTables(out RawClassificationTables ct);
///
/// Critical: This accesses unsafe code and retrieves pointers that it stores locally
/// The pointers retrieved are not validated for correctness and they are later dereferenced.
/// TreatAsSafe: The constructor is safe since it simply stores these pointers. The risk here
/// in the future is not of these pointers being spoofed since they are not settable from outside.
///
[SecurityCritical,SecurityTreatAsSafe]
static Classification()
{
unsafe
{
RawClassificationTables ct = new RawClassificationTables();
MILGetClassificationTables(out ct);
_unicodeClassTable = new SecurityCriticalData(ct.UnicodeClasses);
_charAttributeTable = new SecurityCriticalData(ct.CharacterAttributes);
_mirroredCharTable = new SecurityCriticalData(ct.Mirroring);
_combiningMarksClassification = new SecurityCriticalData(ct.CombiningMarksClassification);
}
}
///
/// Lookup Unicode character class for a Unicode UTF16 value
///
///
/// Critical: This accesses unsafe code and dereferences a location in
/// a prepopulated Array. The risk is you might derefence a bogus memory
/// location.
/// TreatAsSafe: This code is ok since it reduces codepoint to one of 256 possible
/// values and will always succeed. Also this information is ok to expose.
///
[SecurityCritical, SecurityTreatAsSafe]
static public short GetUnicodeClassUTF16(char codepoint)
{
unsafe
{
short **plane0 = UnicodeClassTable[0];
Invariant.Assert((long)plane0 >= (long)UnicodeClass.Max);
short* pcc = plane0[codepoint >> 8];
return ((long) pcc < (long) UnicodeClass.Max ?
(short)pcc : pcc[codepoint & 0xFF]);
}
}
///
/// Lookup Unicode character class for a Unicode scalar value
///
///
/// Critical: This accesses unsafe code and derefences a pointer retrieved from unmanaged code
/// TreatAsSafe: There is bounds checking in place and this dereferences a valid structure which
/// is guaranteed to be populated
///
[SecurityCritical,SecurityTreatAsSafe]
static public short GetUnicodeClass(int unicodeScalar)
{
unsafe
{
Invariant.Assert(unicodeScalar >= 0 && unicodeScalar <= 0x10FFFF);
short **ppcc = UnicodeClassTable[((unicodeScalar >> 16) & 0xFF) % 17];
if ((long)ppcc < (long)UnicodeClass.Max)
return (short)ppcc;
short *pcc = ppcc[(unicodeScalar & 0xFFFF) >> 8];
if ((long)pcc < (long)UnicodeClass.Max)
return (short)pcc;
return pcc[unicodeScalar & 0xFF];
}
}
///
/// Compute Unicode scalar value from unicode codepoint stream
///
static internal int UnicodeScalar(
CharacterBufferRange unicodeString,
out int sizeofChar
)
{
Invariant.Assert(unicodeString.CharacterBuffer != null && unicodeString.Length > 0);
int ch = unicodeString[0];
sizeofChar = 1;
if ( unicodeString.Length >= 2
&& (ch & 0xFC00) == 0xD800
&& (unicodeString[1] & 0xFC00) == 0xDC00
)
{
ch = (((ch & 0x03FF) << 10) | (unicodeString[1] & 0x3FF)) + 0x10000;
sizeofChar++;
}
return ch;
}
///
/// Check whether the character is combining mark
///
///
/// Critical: This code acceses a function call that returns a pointer (get_CharAttributeTable).
/// It trusts the value passed in to derfence the table with no implicit bounds or validity checks.
/// TreatAsSafe: This information is safe to expose at the same time the unicodeScalar passed in
/// is validated for bounds
///
[SecurityCritical,SecurityTreatAsSafe]
static public bool IsCombining(int unicodeScalar)
{
unsafe
{
byte itemClass = Classification.CharAttributeTable[GetUnicodeClass(unicodeScalar)].ItemClass;
return itemClass == (byte)ItemClass.SimpleMarkClass
|| itemClass == (byte)ItemClass.ComplexMarkClass;
}
}
///
/// Check whether the character is a joiner character
///
///
/// Critical: This code acceses a function call that returns a pointer (get_CharAttributeTable).
/// It trusts the value passed in to derfence the table with no implicit bounds or validity checks.
/// TreatAsSafe: This information is safe to expose at the same time the unicodeScalar passed in
/// is validated for bounds
///
[SecurityCritical,SecurityTreatAsSafe]
static public bool IsJoiner(int unicodeScalar)
{
unsafe
{
byte itemClass = Classification.CharAttributeTable[GetUnicodeClass(unicodeScalar)].ItemClass;
return itemClass == (byte) ItemClass.JoinerClass;
}
}
///
/// Scan UTF16 character string until a character with specified attributes is found
///
/// character index of first character matching the attribute.
///
/// Critical: This code acceses a function call that returns a pointer (get_CharAttributeTable).
/// It keeps accesing a buffer with no validation in terms of the variables passed in.
/// TreatAsSafe: This information is safe to expose, as in the worst case it tells you information
/// of where the next UTF16 character is. Also the constructor for characterbuffer can be one of three
/// a string, a char array or an unmanaged char*. The third case is critical and tightly controlled
/// so the risk of bogus length is significantly mitigated.
///
[SecurityCritical,SecurityTreatAsSafe]
static public int AdvanceUntilUTF16(
CharacterBuffer charBuffer,
int offsetToFirstChar,
int stringLength,
ushort mask,
out ushort charFlags
)
{
int i = offsetToFirstChar;
int limit = offsetToFirstChar + stringLength;
charFlags = 0;
while (i < limit)
{
unsafe
{
ushort flags = (ushort)Classification.CharAttributeTable[(int)GetUnicodeClassUTF16(charBuffer[i])].Flags;
if((flags & mask) != 0)
break;
charFlags |= flags;
}
i++;
}
return i - offsetToFirstChar;
}
///
/// Scan UTF16 character string until a character without specified attributes is found
///
/// character index of first character without the attribute.
///
/// Critical: This code acceses a function call that returns a pointer (get_CharAttributeTable). It acceses
/// elements in an array with no type checking.
/// TreatAsSafe: This code exposes the index of the next non UTF16 character in a run. This is ok to expose
/// Also the calls to CharBuffer and CahrAttribute do the requisite bounds checking.
///
[SecurityCritical,SecurityTreatAsSafe]
static public int AdvanceWhileUTF16(
CharacterBuffer charBuffer,
int offsetToFirstChar,
int stringLength,
ushort mask,
out ushort charFlags
)
{
int i = offsetToFirstChar;
int limit = offsetToFirstChar + stringLength;
charFlags = 0;
while (i < limit)
{
unsafe
{
ushort flags = (ushort)Classification.CharAttributeTable[(int)GetUnicodeClassUTF16(charBuffer[i])].Flags;
if ((flags & mask) == 0)
break;
charFlags |= flags;
}
i++;
}
return i - offsetToFirstChar;
}
///
/// Scan character string until a character that is not the specified ItemClass is found
///
/// character index of first character that is not the specified ItemClass
///
/// Critical: This code acceses a function call that returns a pointer (get_CharAttributeTable). It acceses
/// elements in an array with no type checking.
/// TreatAsSafe: This code exposes the index of the next non UTF16 character in a run. This is ok to expose
/// Also the calls to CharBuffer and CahrAttribute do the requisite bounds checking.
///
[SecurityCritical,SecurityTreatAsSafe]
static public int AdvanceWhile(
CharacterBufferRange unicodeString,
ItemClass itemClass
)
{
int i = 0;
int limit = unicodeString.Length;
int sizeofChar = 0;
while (i < limit)
{
int ch = Classification.UnicodeScalar(
new CharacterBufferRange(unicodeString, i, limit - i),
out sizeofChar
);
unsafe
{
byte currentClass = (byte) Classification.CharAttributeTable[(int)GetUnicodeClass(ch)].ItemClass;
if (currentClass != (byte) itemClass)
break;
}
i += sizeofChar;
}
return i;
}
///
/// Lookup mirrored counterpart character of the specified UTF16 character
///
///
/// Critical: This code derefernces a pointer and indexes into it
/// TreatAsSafe: It accesses the structure to return a valid entry from one of 256 entries.
///
[SecurityCritical,SecurityTreatAsSafe]
static public int GetMirroredCharacterUTF16(char codepoint)
{
unsafe
{
char* pcc = Classification.MirroredCharTable[codepoint >> 8];
if (pcc == null)
return codepoint;
int mirroredCodepoint = pcc[codepoint & 0xFF];
return mirroredCodepoint == 0 ? codepoint : mirroredCodepoint;
}
}
///
/// Critical: This accesses unsafe code and returns a pointer
///
private static unsafe short*** UnicodeClassTable
{
[SecurityCritical]
get { return (short***)_unicodeClassTable.Value; }
}
///
/// Critical: This accesses unsafe code and returns a pointer
///
private static unsafe CharacterAttribute* CharAttributeTable
{
[SecurityCritical]
get { return (CharacterAttribute*)_charAttributeTable.Value; }
}
///
/// Critical: This accesses unsafe code and indexes into an array
/// Safe : This method does bound check on the input char class.
///
[SecurityCritical, SecurityTreatAsSafe]
internal static CharacterAttribute CharAttributeOf(int charClass)
{
unsafe
{
Invariant.Assert(charClass >= 0 && charClass < (int) UnicodeClass.Max);
return CharAttributeTable[charClass];
}
}
///
/// Critical: This accesses unsafe code and returns a pointer
///
private static unsafe char** MirroredCharTable
{
[ SecurityCritical]
get { return (char**)_mirroredCharTable.Value; }
}
///
/// Critical: This accesses unsafe code and returns a variable retrieved under an elevation.
/// TreatAsSafe: This data is safe to return at the same time all this structure contains is
/// IntPtr. If you try to do unsafe operations with the IntPtr you require unsafe code.
///
[SecurityCritical,SecurityTreatAsSafe]
internal static unsafe void GetCombiningMarksClassificationData(
out CombiningMarksClassificationData combiningMarksClassification)
{
combiningMarksClassification = _combiningMarksClassification.Value;
}
static private readonly SecurityCriticalData _unicodeClassTable;
static private readonly SecurityCriticalData _charAttributeTable;
static private readonly SecurityCriticalData _mirroredCharTable;
static private readonly SecurityCriticalData _combiningMarksClassification;
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------
//
// Microsoft Windows Client Platform
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// File: Classification.cs
//
// Contents: Unicode classification entry point
//
// Created: 7-14-2002 Tarek Mahmoud Sayed ([....])
//
//-----------------------------------------------------------------------
using System;
using System.Diagnostics;
using MS.Internal;
using System.Windows;
using System.Security;
using System.Collections;
using System.Runtime.InteropServices;
using System.Windows.Media.TextFormatting;
namespace MS.Internal
{
///
/// Hold the classification table pointers.
///
internal static class Classification
{
///
/// This structure has a cloned one in the unmanaged side. Doing any change in this
/// structure should have the same change on unmanaged side too.
///
[StructLayout(LayoutKind.Sequential)]
internal unsafe struct CombiningMarksClassificationData
{
internal IntPtr CombiningCharsIndexes; // Two dimentional array of base char classes,
internal int CombiningCharsIndexesTableLength;
internal int CombiningCharsIndexesTableSegmentLength;
internal IntPtr CombiningMarkIndexes; // Combining mark classes array, with length = length
internal int CombiningMarkIndexesTableLength;
internal IntPtr CombinationChars; // Two dimentional array of combined characters
internal int CombinationCharsBaseCount;
internal int CombinationCharsMarkCount;
}
///
/// This structure has a cloned one in the unmanaged side. doing any change in that
/// structure should have same change in the unmanaged side too.
///
[StructLayout(LayoutKind.Sequential)]
internal unsafe struct RawClassificationTables
{
internal IntPtr UnicodeClasses;
internal IntPtr CharacterAttributes;
internal IntPtr Mirroring;
internal CombiningMarksClassificationData CombiningMarksClassification;
};
///
/// Critical - as this code performs an elevation.
/// Safe - This is an entry point that grabs several RO shared pages for text layout
/// purpose. Reading it directly won't yield any readable content to the reader, nor
/// will it yield any useful information to outside world as these are just loads of
/// Unicode classification hex data that only Text engine knows how to use – hence,
/// not an Information Disclosure threat.
///
[SecurityCritical, SecurityTreatAsSafe]
[SuppressUnmanagedCodeSecurity]
[DllImport(Microsoft.Internal.DllImport.PresentationNative, EntryPoint="MILGetClassificationTables")]
internal static extern void MILGetClassificationTables(out RawClassificationTables ct);
///
/// Critical: This accesses unsafe code and retrieves pointers that it stores locally
/// The pointers retrieved are not validated for correctness and they are later dereferenced.
/// TreatAsSafe: The constructor is safe since it simply stores these pointers. The risk here
/// in the future is not of these pointers being spoofed since they are not settable from outside.
///
[SecurityCritical,SecurityTreatAsSafe]
static Classification()
{
unsafe
{
RawClassificationTables ct = new RawClassificationTables();
MILGetClassificationTables(out ct);
_unicodeClassTable = new SecurityCriticalData(ct.UnicodeClasses);
_charAttributeTable = new SecurityCriticalData(ct.CharacterAttributes);
_mirroredCharTable = new SecurityCriticalData(ct.Mirroring);
_combiningMarksClassification = new SecurityCriticalData(ct.CombiningMarksClassification);
}
}
///
/// Lookup Unicode character class for a Unicode UTF16 value
///
///
/// Critical: This accesses unsafe code and dereferences a location in
/// a prepopulated Array. The risk is you might derefence a bogus memory
/// location.
/// TreatAsSafe: This code is ok since it reduces codepoint to one of 256 possible
/// values and will always succeed. Also this information is ok to expose.
///
[SecurityCritical, SecurityTreatAsSafe]
static public short GetUnicodeClassUTF16(char codepoint)
{
unsafe
{
short **plane0 = UnicodeClassTable[0];
Invariant.Assert((long)plane0 >= (long)UnicodeClass.Max);
short* pcc = plane0[codepoint >> 8];
return ((long) pcc < (long) UnicodeClass.Max ?
(short)pcc : pcc[codepoint & 0xFF]);
}
}
///
/// Lookup Unicode character class for a Unicode scalar value
///
///
/// Critical: This accesses unsafe code and derefences a pointer retrieved from unmanaged code
/// TreatAsSafe: There is bounds checking in place and this dereferences a valid structure which
/// is guaranteed to be populated
///
[SecurityCritical,SecurityTreatAsSafe]
static public short GetUnicodeClass(int unicodeScalar)
{
unsafe
{
Invariant.Assert(unicodeScalar >= 0 && unicodeScalar <= 0x10FFFF);
short **ppcc = UnicodeClassTable[((unicodeScalar >> 16) & 0xFF) % 17];
if ((long)ppcc < (long)UnicodeClass.Max)
return (short)ppcc;
short *pcc = ppcc[(unicodeScalar & 0xFFFF) >> 8];
if ((long)pcc < (long)UnicodeClass.Max)
return (short)pcc;
return pcc[unicodeScalar & 0xFF];
}
}
///
/// Compute Unicode scalar value from unicode codepoint stream
///
static internal int UnicodeScalar(
CharacterBufferRange unicodeString,
out int sizeofChar
)
{
Invariant.Assert(unicodeString.CharacterBuffer != null && unicodeString.Length > 0);
int ch = unicodeString[0];
sizeofChar = 1;
if ( unicodeString.Length >= 2
&& (ch & 0xFC00) == 0xD800
&& (unicodeString[1] & 0xFC00) == 0xDC00
)
{
ch = (((ch & 0x03FF) << 10) | (unicodeString[1] & 0x3FF)) + 0x10000;
sizeofChar++;
}
return ch;
}
///
/// Check whether the character is combining mark
///
///
/// Critical: This code acceses a function call that returns a pointer (get_CharAttributeTable).
/// It trusts the value passed in to derfence the table with no implicit bounds or validity checks.
/// TreatAsSafe: This information is safe to expose at the same time the unicodeScalar passed in
/// is validated for bounds
///
[SecurityCritical,SecurityTreatAsSafe]
static public bool IsCombining(int unicodeScalar)
{
unsafe
{
byte itemClass = Classification.CharAttributeTable[GetUnicodeClass(unicodeScalar)].ItemClass;
return itemClass == (byte)ItemClass.SimpleMarkClass
|| itemClass == (byte)ItemClass.ComplexMarkClass;
}
}
///
/// Check whether the character is a joiner character
///
///
/// Critical: This code acceses a function call that returns a pointer (get_CharAttributeTable).
/// It trusts the value passed in to derfence the table with no implicit bounds or validity checks.
/// TreatAsSafe: This information is safe to expose at the same time the unicodeScalar passed in
/// is validated for bounds
///
[SecurityCritical,SecurityTreatAsSafe]
static public bool IsJoiner(int unicodeScalar)
{
unsafe
{
byte itemClass = Classification.CharAttributeTable[GetUnicodeClass(unicodeScalar)].ItemClass;
return itemClass == (byte) ItemClass.JoinerClass;
}
}
///
/// Scan UTF16 character string until a character with specified attributes is found
///
/// character index of first character matching the attribute.
///
/// Critical: This code acceses a function call that returns a pointer (get_CharAttributeTable).
/// It keeps accesing a buffer with no validation in terms of the variables passed in.
/// TreatAsSafe: This information is safe to expose, as in the worst case it tells you information
/// of where the next UTF16 character is. Also the constructor for characterbuffer can be one of three
/// a string, a char array or an unmanaged char*. The third case is critical and tightly controlled
/// so the risk of bogus length is significantly mitigated.
///
[SecurityCritical,SecurityTreatAsSafe]
static public int AdvanceUntilUTF16(
CharacterBuffer charBuffer,
int offsetToFirstChar,
int stringLength,
ushort mask,
out ushort charFlags
)
{
int i = offsetToFirstChar;
int limit = offsetToFirstChar + stringLength;
charFlags = 0;
while (i < limit)
{
unsafe
{
ushort flags = (ushort)Classification.CharAttributeTable[(int)GetUnicodeClassUTF16(charBuffer[i])].Flags;
if((flags & mask) != 0)
break;
charFlags |= flags;
}
i++;
}
return i - offsetToFirstChar;
}
///
/// Scan UTF16 character string until a character without specified attributes is found
///
/// character index of first character without the attribute.
///
/// Critical: This code acceses a function call that returns a pointer (get_CharAttributeTable). It acceses
/// elements in an array with no type checking.
/// TreatAsSafe: This code exposes the index of the next non UTF16 character in a run. This is ok to expose
/// Also the calls to CharBuffer and CahrAttribute do the requisite bounds checking.
///
[SecurityCritical,SecurityTreatAsSafe]
static public int AdvanceWhileUTF16(
CharacterBuffer charBuffer,
int offsetToFirstChar,
int stringLength,
ushort mask,
out ushort charFlags
)
{
int i = offsetToFirstChar;
int limit = offsetToFirstChar + stringLength;
charFlags = 0;
while (i < limit)
{
unsafe
{
ushort flags = (ushort)Classification.CharAttributeTable[(int)GetUnicodeClassUTF16(charBuffer[i])].Flags;
if ((flags & mask) == 0)
break;
charFlags |= flags;
}
i++;
}
return i - offsetToFirstChar;
}
///
/// Scan character string until a character that is not the specified ItemClass is found
///
/// character index of first character that is not the specified ItemClass
///
/// Critical: This code acceses a function call that returns a pointer (get_CharAttributeTable). It acceses
/// elements in an array with no type checking.
/// TreatAsSafe: This code exposes the index of the next non UTF16 character in a run. This is ok to expose
/// Also the calls to CharBuffer and CahrAttribute do the requisite bounds checking.
///
[SecurityCritical,SecurityTreatAsSafe]
static public int AdvanceWhile(
CharacterBufferRange unicodeString,
ItemClass itemClass
)
{
int i = 0;
int limit = unicodeString.Length;
int sizeofChar = 0;
while (i < limit)
{
int ch = Classification.UnicodeScalar(
new CharacterBufferRange(unicodeString, i, limit - i),
out sizeofChar
);
unsafe
{
byte currentClass = (byte) Classification.CharAttributeTable[(int)GetUnicodeClass(ch)].ItemClass;
if (currentClass != (byte) itemClass)
break;
}
i += sizeofChar;
}
return i;
}
///
/// Lookup mirrored counterpart character of the specified UTF16 character
///
///
/// Critical: This code derefernces a pointer and indexes into it
/// TreatAsSafe: It accesses the structure to return a valid entry from one of 256 entries.
///
[SecurityCritical,SecurityTreatAsSafe]
static public int GetMirroredCharacterUTF16(char codepoint)
{
unsafe
{
char* pcc = Classification.MirroredCharTable[codepoint >> 8];
if (pcc == null)
return codepoint;
int mirroredCodepoint = pcc[codepoint & 0xFF];
return mirroredCodepoint == 0 ? codepoint : mirroredCodepoint;
}
}
///
/// Critical: This accesses unsafe code and returns a pointer
///
private static unsafe short*** UnicodeClassTable
{
[SecurityCritical]
get { return (short***)_unicodeClassTable.Value; }
}
///
/// Critical: This accesses unsafe code and returns a pointer
///
private static unsafe CharacterAttribute* CharAttributeTable
{
[SecurityCritical]
get { return (CharacterAttribute*)_charAttributeTable.Value; }
}
///
/// Critical: This accesses unsafe code and indexes into an array
/// Safe : This method does bound check on the input char class.
///
[SecurityCritical, SecurityTreatAsSafe]
internal static CharacterAttribute CharAttributeOf(int charClass)
{
unsafe
{
Invariant.Assert(charClass >= 0 && charClass < (int) UnicodeClass.Max);
return CharAttributeTable[charClass];
}
}
///
/// Critical: This accesses unsafe code and returns a pointer
///
private static unsafe char** MirroredCharTable
{
[ SecurityCritical]
get { return (char**)_mirroredCharTable.Value; }
}
///
/// Critical: This accesses unsafe code and returns a variable retrieved under an elevation.
/// TreatAsSafe: This data is safe to return at the same time all this structure contains is
/// IntPtr. If you try to do unsafe operations with the IntPtr you require unsafe code.
///
[SecurityCritical,SecurityTreatAsSafe]
internal static unsafe void GetCombiningMarksClassificationData(
out CombiningMarksClassificationData combiningMarksClassification)
{
combiningMarksClassification = _combiningMarksClassification.Value;
}
static private readonly SecurityCriticalData _unicodeClassTable;
static private readonly SecurityCriticalData _charAttributeTable;
static private readonly SecurityCriticalData _mirroredCharTable;
static private readonly SecurityCriticalData _combiningMarksClassification;
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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