Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Text / Normalization.cs / 1305376 / Normalization.cs
// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
namespace System.Text
{
using System;
using System.Globalization;
using System.Text;
using System.Runtime.CompilerServices;
using System.Runtime.Versioning;
using System.Diagnostics.Contracts;
// This is the enumeration for Normalization Forms
[System.Runtime.InteropServices.ComVisible(true)]
public enum NormalizationForm
{
#if !FEATURE_NORM_IDNA_ONLY
FormC = 1,
FormD = 2,
FormKC = 5,
FormKD = 6
#endif // !FEATURE_NORM_IDNA_ONLY
}
internal enum ExtendedNormalizationForms
{
#if !FEATURE_NORM_IDNA_ONLY
FormC = 1,
FormD = 2,
FormKC = 5,
FormKD = 6,
#endif // !FEATURE_NORM_IDNA_ONLY
FormIdna = 0xd,
#if !FEATURE_NORM_IDNA_ONLY
FormCDisallowUnassigned = 0x101,
FormDDisallowUnassigned = 0x102,
FormKCDisallowUnassigned = 0x105,
FormKDDisallowUnassigned = 0x106,
#endif // !FEATURE_NORM_IDNA_ONLY
FormIdnaDisallowUnassigned = 0x10d
}
// This internal class wraps up our normalization behavior
internal class Normalization
{
#if !FEATURE_NORM_IDNA_ONLY
private static Normalization NFC;
private static Normalization NFD;
private static Normalization NFKC;
private static Normalization NFKD;
#endif // !FEATURE_NORM_IDNA_ONLY
private static Normalization IDNA;
#if !FEATURE_NORM_IDNA_ONLY
private static Normalization NFCDisallowUnassigned;
private static Normalization NFDDisallowUnassigned;
private static Normalization NFKCDisallowUnassigned;
private static Normalization NFKDDisallowUnassigned;
#endif // !FEATURE_NORM_IDNA_ONLY
private static Normalization IDNADisallowUnassigned;
private NormalizationForm normalizationForm;
// These are error codes we get back from the Normalization DLL
private const int ERROR_SUCCESS = 0;
private const int ERROR_NOT_ENOUGH_MEMORY = 8;
private const int ERROR_INVALID_PARAMETER = 87;
private const int ERROR_INSUFFICIENT_BUFFER = 122;
private const int ERROR_NO_UNICODE_TRANSLATION = 1113;
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[ResourceConsumption(ResourceScope.Process, ResourceScope.Process)]
internal unsafe Normalization(NormalizationForm form, String strDataFile)
{
// Remember which form we are
this.normalizationForm = form;
// Load the DLL
if (!nativeLoadNormalizationDLL())
{
// Unable to load the normalization DLL!
throw new ArgumentException(
Environment.GetResourceString("Argument_InvalidNormalizationForm"));
}
// Tell the DLL where to find our data
byte* pTables = GlobalizationAssembly.GetGlobalizationResourceBytePtr(
typeof(Normalization).Assembly, strDataFile);
if (pTables == null)
{
// Unable to load the specified normalizationForm,
// tables not loaded from file
throw new ArgumentException(
Environment.GetResourceString("Argument_InvalidNormalizationForm"));
}
// All we have to do is let the .dll know how to load it, then
// we can ignore the returned pointer.
byte* objNorm = nativeNormalizationInitNormalization(form, pTables);
if (objNorm == null)
{
// Unable to load the specified normalizationForm
// native library class not initialized correctly
throw new OutOfMemoryException(
Environment.GetResourceString("Arg_OutOfMemoryException"));
}
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetNormalization(NormalizationForm form)
{
switch ((ExtendedNormalizationForms)form)
{
#if !FEATURE_NORM_IDNA_ONLY
case ExtendedNormalizationForms.FormC:
return GetFormC();
case ExtendedNormalizationForms.FormD:
return GetFormD();
case ExtendedNormalizationForms.FormKC:
return GetFormKC();
case ExtendedNormalizationForms.FormKD:
return GetFormKD();
#endif // !FEATURE_NORM_IDNA_ONLY
case ExtendedNormalizationForms.FormIdna:
return GetFormIDNA();
#if !FEATURE_NORM_IDNA_ONLY
case ExtendedNormalizationForms.FormCDisallowUnassigned:
return GetFormCDisallowUnassigned();
case ExtendedNormalizationForms.FormDDisallowUnassigned:
return GetFormDDisallowUnassigned();
case ExtendedNormalizationForms.FormKCDisallowUnassigned:
return GetFormKCDisallowUnassigned();
case ExtendedNormalizationForms.FormKDDisallowUnassigned:
return GetFormKDDisallowUnassigned();
#endif // !FEATURE_NORM_IDNA_ONLY
case ExtendedNormalizationForms.FormIdnaDisallowUnassigned:
return GetFormIDNADisallowUnassigned();
}
// They were supposed to have a form that we know about!
throw new ArgumentException(
Environment.GetResourceString("Argument_InvalidNormalizationForm"));
}
#if !FEATURE_NORM_IDNA_ONLY
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormC()
{
if (NFC != null)
return NFC;
NFC = new Normalization(NormalizationForm.FormC, "normnfc.nlp");
return NFC;
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormD()
{
if (NFD != null)
return NFD;
NFD = new Normalization(NormalizationForm.FormD, "normnfd.nlp");
return NFD;
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormKC()
{
if (NFKC != null)
return NFKC;
NFKC = new Normalization(NormalizationForm.FormKC, "normnfkc.nlp");
return NFKC;
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormKD()
{
if (NFKD != null)
return NFKD;
NFKD = new Normalization(NormalizationForm.FormKD, "normnfkd.nlp");
return NFKD;
}
#endif // !FEATURE_NORM_IDNA_ONLY
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormIDNA()
{
if (IDNA != null)
return IDNA;
IDNA = new Normalization((NormalizationForm)ExtendedNormalizationForms.FormIdna, "normidna.nlp");
return IDNA;
}
#if !FEATURE_NORM_IDNA_ONLY
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormCDisallowUnassigned()
{
if (NFCDisallowUnassigned != null)
return NFCDisallowUnassigned;
NFCDisallowUnassigned = new Normalization(
(NormalizationForm)ExtendedNormalizationForms.FormCDisallowUnassigned, "normnfc.nlp");
return NFCDisallowUnassigned;
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormDDisallowUnassigned()
{
if (NFDDisallowUnassigned != null)
return NFDDisallowUnassigned;
NFDDisallowUnassigned = new Normalization(
(NormalizationForm)ExtendedNormalizationForms.FormDDisallowUnassigned, "normnfd.nlp");
return NFDDisallowUnassigned;
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormKCDisallowUnassigned()
{
if (NFKCDisallowUnassigned != null)
return NFKCDisallowUnassigned;
NFKCDisallowUnassigned = new Normalization(
(NormalizationForm)ExtendedNormalizationForms.FormKCDisallowUnassigned, "normnfkc.nlp");
return NFKCDisallowUnassigned;
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormKDDisallowUnassigned()
{
if (NFKDDisallowUnassigned != null)
return NFKDDisallowUnassigned;
NFKDDisallowUnassigned = new Normalization(
(NormalizationForm)ExtendedNormalizationForms.FormKDDisallowUnassigned, "normnfkd.nlp");
return NFKDDisallowUnassigned;
}
#endif // !FEATURE_NORM_IDNA_ONLY
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormIDNADisallowUnassigned()
{
if (IDNADisallowUnassigned!= null)
return IDNADisallowUnassigned;
IDNADisallowUnassigned = new Normalization(
(NormalizationForm)ExtendedNormalizationForms.FormIdnaDisallowUnassigned, "normidna.nlp");
return IDNADisallowUnassigned;
}
[System.Security.SecurityCritical] // auto-generated
internal static bool IsNormalized(String strInput, NormalizationForm normForm)
{
return GetNormalization(normForm).IsNormalized(strInput);
}
[System.Security.SecurityCritical] // auto-generated
private bool IsNormalized(String strInput)
{
if (strInput == null)
throw new ArgumentNullException(
Environment.GetResourceString("ArgumentNull_String"), "strInput");
Contract.EndContractBlock();
int iError = ERROR_SUCCESS;
int iTest = nativeNormalizationIsNormalizedString(
normalizationForm, ref iError, strInput, strInput.Length);
switch(iError)
{
// Success doesn't need to do anything
case ERROR_SUCCESS:
break;
// Do appropriate stuff for the individual errors:
// Only possible value here is ERROR_NO_UNICODE_TRANSLATION
case ERROR_NO_UNICODE_TRANSLATION:
throw new ArgumentException(
Environment.GetResourceString("Argument_InvalidCharSequenceNoIndex" ),
"strInput");
case ERROR_NOT_ENOUGH_MEMORY:
throw new OutOfMemoryException(
Environment.GetResourceString("Arg_OutOfMemoryException"));
default:
throw new InvalidOperationException(
Environment.GetRuntimeResourceString("UnknownError_Num", iError));
}
// Bit 1 is true, 0 is false from our return value.
return ((iTest & 1) == 1);
}
[System.Security.SecurityCritical] // auto-generated
internal static String Normalize(String strInput, NormalizationForm normForm)
{
return GetNormalization(normForm).Normalize(strInput);
}
[System.Security.SecurityCritical] // auto-generated
internal String Normalize(String strInput)
{
if (strInput == null)
throw new ArgumentNullException( "strInput",
Environment.GetResourceString("ArgumentNull_String"));
Contract.EndContractBlock();
// Guess our buffer size first
int iLength = GuessLength(strInput);
// Don't break for empty strings (only possible for D & KD and not really possible at that)
if (iLength == 0) return String.Empty;
// Someplace to stick our buffer
char[] cBuffer = null;
int iError = ERROR_INSUFFICIENT_BUFFER;
while (iError == ERROR_INSUFFICIENT_BUFFER)
{
// (re)allocation buffer and normalize string
cBuffer = new char[iLength];
iLength = nativeNormalizationNormalizeString(
normalizationForm, ref iError,
strInput, strInput.Length, cBuffer, cBuffer.Length);
// Could have an error (actually it'd be quite hard to have an error here)
if (iError != ERROR_SUCCESS)
{
switch(iError)
{
// Do appropriate stuff for the individual errors:
case ERROR_INSUFFICIENT_BUFFER:
Contract.Assert(iLength > cBuffer.Length, "Buffer overflow should have iLength > cBuffer.Length");
continue;
case ERROR_NO_UNICODE_TRANSLATION:
// Illegal code point or order found. Ie: FFFE or D800 D800, etc.
throw new ArgumentException(
Environment.GetResourceString("Argument_InvalidCharSequence", iLength ),
"strInput");
case ERROR_NOT_ENOUGH_MEMORY:
throw new OutOfMemoryException(
Environment.GetResourceString("Arg_OutOfMemoryException"));
case ERROR_INVALID_PARAMETER:
// Shouldn't have invalid parameters here unless we have a bug, drop through...
default:
// We shouldn't get here...
throw new InvalidOperationException(
Environment.GetRuntimeResourceString("UnknownError_Num", iError));
}
}
}
// Copy our buffer into our new string, which will be the appropriate size
String strReturn = new String(cBuffer, 0, iLength);
// Return our output string
return strReturn;
}
[System.Security.SecurityCritical] // auto-generated
internal int GuessLength(String strInput)
{
if (strInput == null)
throw new ArgumentNullException( "strInput",
Environment.GetResourceString("ArgumentNull_String"));
Contract.EndContractBlock();
// Get our guess
int iError = 0;
int iGuess = nativeNormalizationNormalizeString(
normalizationForm, ref iError, strInput, strInput.Length, null, 0);
// Could have an error (actually it'd be quite hard to have an error here)
Contract.Assert(iError == ERROR_SUCCESS, "GuessLength() shouldn't return errors.");
if (iError != ERROR_SUCCESS)
{
// We shouldn't really be able to get here..., guessing length is
// a trivial math function...
// Can't really be Out of Memory, but just in case:
if (iError == ERROR_NOT_ENOUGH_MEMORY)
throw new OutOfMemoryException(
Environment.GetResourceString("Arg_OutOfMemoryException"));
// Who knows what happened? Not us!
throw new InvalidOperationException(
Environment.GetRuntimeResourceString("UnknownError_Num", iError));
}
// Well, we guessed it
return iGuess;
}
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.Process)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
unsafe private static extern bool nativeLoadNormalizationDLL();
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
unsafe private static extern int nativeNormalizationNormalizeString(
NormalizationForm NormForm, ref int iError,
String lpSrcString, int cwSrcLength,
char[] lpDstString, int cwDstLength);
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
unsafe private static extern int nativeNormalizationIsNormalizedString(
NormalizationForm NormForm, ref int iError,
String lpString, int cwLength);
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.Process)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
unsafe private static extern byte* nativeNormalizationInitNormalization(
NormalizationForm NormForm, byte* pTableData);
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
namespace System.Text
{
using System;
using System.Globalization;
using System.Text;
using System.Runtime.CompilerServices;
using System.Runtime.Versioning;
using System.Diagnostics.Contracts;
// This is the enumeration for Normalization Forms
[System.Runtime.InteropServices.ComVisible(true)]
public enum NormalizationForm
{
#if !FEATURE_NORM_IDNA_ONLY
FormC = 1,
FormD = 2,
FormKC = 5,
FormKD = 6
#endif // !FEATURE_NORM_IDNA_ONLY
}
internal enum ExtendedNormalizationForms
{
#if !FEATURE_NORM_IDNA_ONLY
FormC = 1,
FormD = 2,
FormKC = 5,
FormKD = 6,
#endif // !FEATURE_NORM_IDNA_ONLY
FormIdna = 0xd,
#if !FEATURE_NORM_IDNA_ONLY
FormCDisallowUnassigned = 0x101,
FormDDisallowUnassigned = 0x102,
FormKCDisallowUnassigned = 0x105,
FormKDDisallowUnassigned = 0x106,
#endif // !FEATURE_NORM_IDNA_ONLY
FormIdnaDisallowUnassigned = 0x10d
}
// This internal class wraps up our normalization behavior
internal class Normalization
{
#if !FEATURE_NORM_IDNA_ONLY
private static Normalization NFC;
private static Normalization NFD;
private static Normalization NFKC;
private static Normalization NFKD;
#endif // !FEATURE_NORM_IDNA_ONLY
private static Normalization IDNA;
#if !FEATURE_NORM_IDNA_ONLY
private static Normalization NFCDisallowUnassigned;
private static Normalization NFDDisallowUnassigned;
private static Normalization NFKCDisallowUnassigned;
private static Normalization NFKDDisallowUnassigned;
#endif // !FEATURE_NORM_IDNA_ONLY
private static Normalization IDNADisallowUnassigned;
private NormalizationForm normalizationForm;
// These are error codes we get back from the Normalization DLL
private const int ERROR_SUCCESS = 0;
private const int ERROR_NOT_ENOUGH_MEMORY = 8;
private const int ERROR_INVALID_PARAMETER = 87;
private const int ERROR_INSUFFICIENT_BUFFER = 122;
private const int ERROR_NO_UNICODE_TRANSLATION = 1113;
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[ResourceConsumption(ResourceScope.Process, ResourceScope.Process)]
internal unsafe Normalization(NormalizationForm form, String strDataFile)
{
// Remember which form we are
this.normalizationForm = form;
// Load the DLL
if (!nativeLoadNormalizationDLL())
{
// Unable to load the normalization DLL!
throw new ArgumentException(
Environment.GetResourceString("Argument_InvalidNormalizationForm"));
}
// Tell the DLL where to find our data
byte* pTables = GlobalizationAssembly.GetGlobalizationResourceBytePtr(
typeof(Normalization).Assembly, strDataFile);
if (pTables == null)
{
// Unable to load the specified normalizationForm,
// tables not loaded from file
throw new ArgumentException(
Environment.GetResourceString("Argument_InvalidNormalizationForm"));
}
// All we have to do is let the .dll know how to load it, then
// we can ignore the returned pointer.
byte* objNorm = nativeNormalizationInitNormalization(form, pTables);
if (objNorm == null)
{
// Unable to load the specified normalizationForm
// native library class not initialized correctly
throw new OutOfMemoryException(
Environment.GetResourceString("Arg_OutOfMemoryException"));
}
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetNormalization(NormalizationForm form)
{
switch ((ExtendedNormalizationForms)form)
{
#if !FEATURE_NORM_IDNA_ONLY
case ExtendedNormalizationForms.FormC:
return GetFormC();
case ExtendedNormalizationForms.FormD:
return GetFormD();
case ExtendedNormalizationForms.FormKC:
return GetFormKC();
case ExtendedNormalizationForms.FormKD:
return GetFormKD();
#endif // !FEATURE_NORM_IDNA_ONLY
case ExtendedNormalizationForms.FormIdna:
return GetFormIDNA();
#if !FEATURE_NORM_IDNA_ONLY
case ExtendedNormalizationForms.FormCDisallowUnassigned:
return GetFormCDisallowUnassigned();
case ExtendedNormalizationForms.FormDDisallowUnassigned:
return GetFormDDisallowUnassigned();
case ExtendedNormalizationForms.FormKCDisallowUnassigned:
return GetFormKCDisallowUnassigned();
case ExtendedNormalizationForms.FormKDDisallowUnassigned:
return GetFormKDDisallowUnassigned();
#endif // !FEATURE_NORM_IDNA_ONLY
case ExtendedNormalizationForms.FormIdnaDisallowUnassigned:
return GetFormIDNADisallowUnassigned();
}
// They were supposed to have a form that we know about!
throw new ArgumentException(
Environment.GetResourceString("Argument_InvalidNormalizationForm"));
}
#if !FEATURE_NORM_IDNA_ONLY
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormC()
{
if (NFC != null)
return NFC;
NFC = new Normalization(NormalizationForm.FormC, "normnfc.nlp");
return NFC;
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormD()
{
if (NFD != null)
return NFD;
NFD = new Normalization(NormalizationForm.FormD, "normnfd.nlp");
return NFD;
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormKC()
{
if (NFKC != null)
return NFKC;
NFKC = new Normalization(NormalizationForm.FormKC, "normnfkc.nlp");
return NFKC;
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormKD()
{
if (NFKD != null)
return NFKD;
NFKD = new Normalization(NormalizationForm.FormKD, "normnfkd.nlp");
return NFKD;
}
#endif // !FEATURE_NORM_IDNA_ONLY
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormIDNA()
{
if (IDNA != null)
return IDNA;
IDNA = new Normalization((NormalizationForm)ExtendedNormalizationForms.FormIdna, "normidna.nlp");
return IDNA;
}
#if !FEATURE_NORM_IDNA_ONLY
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormCDisallowUnassigned()
{
if (NFCDisallowUnassigned != null)
return NFCDisallowUnassigned;
NFCDisallowUnassigned = new Normalization(
(NormalizationForm)ExtendedNormalizationForms.FormCDisallowUnassigned, "normnfc.nlp");
return NFCDisallowUnassigned;
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormDDisallowUnassigned()
{
if (NFDDisallowUnassigned != null)
return NFDDisallowUnassigned;
NFDDisallowUnassigned = new Normalization(
(NormalizationForm)ExtendedNormalizationForms.FormDDisallowUnassigned, "normnfd.nlp");
return NFDDisallowUnassigned;
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormKCDisallowUnassigned()
{
if (NFKCDisallowUnassigned != null)
return NFKCDisallowUnassigned;
NFKCDisallowUnassigned = new Normalization(
(NormalizationForm)ExtendedNormalizationForms.FormKCDisallowUnassigned, "normnfkc.nlp");
return NFKCDisallowUnassigned;
}
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormKDDisallowUnassigned()
{
if (NFKDDisallowUnassigned != null)
return NFKDDisallowUnassigned;
NFKDDisallowUnassigned = new Normalization(
(NormalizationForm)ExtendedNormalizationForms.FormKDDisallowUnassigned, "normnfkd.nlp");
return NFKDDisallowUnassigned;
}
#endif // !FEATURE_NORM_IDNA_ONLY
[System.Security.SecurityCritical] // auto-generated
static internal Normalization GetFormIDNADisallowUnassigned()
{
if (IDNADisallowUnassigned!= null)
return IDNADisallowUnassigned;
IDNADisallowUnassigned = new Normalization(
(NormalizationForm)ExtendedNormalizationForms.FormIdnaDisallowUnassigned, "normidna.nlp");
return IDNADisallowUnassigned;
}
[System.Security.SecurityCritical] // auto-generated
internal static bool IsNormalized(String strInput, NormalizationForm normForm)
{
return GetNormalization(normForm).IsNormalized(strInput);
}
[System.Security.SecurityCritical] // auto-generated
private bool IsNormalized(String strInput)
{
if (strInput == null)
throw new ArgumentNullException(
Environment.GetResourceString("ArgumentNull_String"), "strInput");
Contract.EndContractBlock();
int iError = ERROR_SUCCESS;
int iTest = nativeNormalizationIsNormalizedString(
normalizationForm, ref iError, strInput, strInput.Length);
switch(iError)
{
// Success doesn't need to do anything
case ERROR_SUCCESS:
break;
// Do appropriate stuff for the individual errors:
// Only possible value here is ERROR_NO_UNICODE_TRANSLATION
case ERROR_NO_UNICODE_TRANSLATION:
throw new ArgumentException(
Environment.GetResourceString("Argument_InvalidCharSequenceNoIndex" ),
"strInput");
case ERROR_NOT_ENOUGH_MEMORY:
throw new OutOfMemoryException(
Environment.GetResourceString("Arg_OutOfMemoryException"));
default:
throw new InvalidOperationException(
Environment.GetRuntimeResourceString("UnknownError_Num", iError));
}
// Bit 1 is true, 0 is false from our return value.
return ((iTest & 1) == 1);
}
[System.Security.SecurityCritical] // auto-generated
internal static String Normalize(String strInput, NormalizationForm normForm)
{
return GetNormalization(normForm).Normalize(strInput);
}
[System.Security.SecurityCritical] // auto-generated
internal String Normalize(String strInput)
{
if (strInput == null)
throw new ArgumentNullException( "strInput",
Environment.GetResourceString("ArgumentNull_String"));
Contract.EndContractBlock();
// Guess our buffer size first
int iLength = GuessLength(strInput);
// Don't break for empty strings (only possible for D & KD and not really possible at that)
if (iLength == 0) return String.Empty;
// Someplace to stick our buffer
char[] cBuffer = null;
int iError = ERROR_INSUFFICIENT_BUFFER;
while (iError == ERROR_INSUFFICIENT_BUFFER)
{
// (re)allocation buffer and normalize string
cBuffer = new char[iLength];
iLength = nativeNormalizationNormalizeString(
normalizationForm, ref iError,
strInput, strInput.Length, cBuffer, cBuffer.Length);
// Could have an error (actually it'd be quite hard to have an error here)
if (iError != ERROR_SUCCESS)
{
switch(iError)
{
// Do appropriate stuff for the individual errors:
case ERROR_INSUFFICIENT_BUFFER:
Contract.Assert(iLength > cBuffer.Length, "Buffer overflow should have iLength > cBuffer.Length");
continue;
case ERROR_NO_UNICODE_TRANSLATION:
// Illegal code point or order found. Ie: FFFE or D800 D800, etc.
throw new ArgumentException(
Environment.GetResourceString("Argument_InvalidCharSequence", iLength ),
"strInput");
case ERROR_NOT_ENOUGH_MEMORY:
throw new OutOfMemoryException(
Environment.GetResourceString("Arg_OutOfMemoryException"));
case ERROR_INVALID_PARAMETER:
// Shouldn't have invalid parameters here unless we have a bug, drop through...
default:
// We shouldn't get here...
throw new InvalidOperationException(
Environment.GetRuntimeResourceString("UnknownError_Num", iError));
}
}
}
// Copy our buffer into our new string, which will be the appropriate size
String strReturn = new String(cBuffer, 0, iLength);
// Return our output string
return strReturn;
}
[System.Security.SecurityCritical] // auto-generated
internal int GuessLength(String strInput)
{
if (strInput == null)
throw new ArgumentNullException( "strInput",
Environment.GetResourceString("ArgumentNull_String"));
Contract.EndContractBlock();
// Get our guess
int iError = 0;
int iGuess = nativeNormalizationNormalizeString(
normalizationForm, ref iError, strInput, strInput.Length, null, 0);
// Could have an error (actually it'd be quite hard to have an error here)
Contract.Assert(iError == ERROR_SUCCESS, "GuessLength() shouldn't return errors.");
if (iError != ERROR_SUCCESS)
{
// We shouldn't really be able to get here..., guessing length is
// a trivial math function...
// Can't really be Out of Memory, but just in case:
if (iError == ERROR_NOT_ENOUGH_MEMORY)
throw new OutOfMemoryException(
Environment.GetResourceString("Arg_OutOfMemoryException"));
// Who knows what happened? Not us!
throw new InvalidOperationException(
Environment.GetRuntimeResourceString("UnknownError_Num", iError));
}
// Well, we guessed it
return iGuess;
}
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.Process)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
unsafe private static extern bool nativeLoadNormalizationDLL();
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
unsafe private static extern int nativeNormalizationNormalizeString(
NormalizationForm NormForm, ref int iError,
String lpSrcString, int cwSrcLength,
char[] lpDstString, int cwDstLength);
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
unsafe private static extern int nativeNormalizationIsNormalizedString(
NormalizationForm NormForm, ref int iError,
String lpString, int cwLength);
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.Process)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
unsafe private static extern byte* nativeNormalizationInitNormalization(
NormalizationForm NormForm, byte* pTableData);
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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- EditorZone.cs
- ParameterCollection.cs
- XmlCharType.cs
- BamlTreeNode.cs
- ResourceReferenceKeyNotFoundException.cs
- LoginCancelEventArgs.cs
- DependsOnAttribute.cs
- BitVector32.cs
- GroupedContextMenuStrip.cs
- BrowserTree.cs
- BindableAttribute.cs
- GridViewRowCollection.cs
- Context.cs
- ConfigXmlWhitespace.cs
- MobileTextWriter.cs
- DataRelation.cs
- Geometry.cs
- EventlogProvider.cs
- _LocalDataStoreMgr.cs
- SSmlParser.cs
- WebControl.cs
- AssociationSetMetadata.cs
- Parameter.cs
- XmlComplianceUtil.cs
- BindingBase.cs
- WorkflowControlEndpoint.cs
- OleDbReferenceCollection.cs
- CreateRefExpr.cs
- NonVisualControlAttribute.cs
- ImageMapEventArgs.cs
- AutomationProperties.cs
- BrowserCapabilitiesCodeGenerator.cs
- Ref.cs
- XPathItem.cs
- Constant.cs
- InstancePersistenceException.cs
- SelectingProviderEventArgs.cs
- IImplicitResourceProvider.cs
- BinaryQueryOperator.cs
- XmlBoundElement.cs
- EncryptedData.cs
- DBConnectionString.cs
- QilReference.cs
- PrimitiveType.cs
- IWorkflowDebuggerService.cs
- PixelShader.cs
- MasterPageParser.cs
- AccessedThroughPropertyAttribute.cs
- OrderedParallelQuery.cs
- IdentityNotMappedException.cs
- RequestStatusBarUpdateEventArgs.cs
- WinInet.cs
- NonClientArea.cs
- DataRowChangeEvent.cs
- ContextMenuStripActionList.cs
- PeerApplication.cs
- WarningException.cs
- JoinTreeNode.cs
- TaiwanCalendar.cs
- GlyphInfoList.cs
- TextEncodedRawTextWriter.cs
- cookieexception.cs
- UpDownEvent.cs
- nulltextnavigator.cs
- HtmlInputCheckBox.cs
- TreeIterator.cs
- EdmProperty.cs
- ILGen.cs
- DataGridViewComboBoxColumn.cs
- CollectionAdapters.cs
- ProfileEventArgs.cs
- MinimizableAttributeTypeConverter.cs
- InteropBitmapSource.cs
- StylusDownEventArgs.cs
- CalloutQueueItem.cs
- ReservationCollection.cs
- ListViewTableCell.cs
- UnknownExceptionActionHelper.cs
- DataObjectFieldAttribute.cs
- FrameworkTextComposition.cs
- HandleCollector.cs
- TabPageDesigner.cs
- UrlMapping.cs
- MethodImplAttribute.cs
- SymLanguageVendor.cs
- SecuritySessionFilter.cs
- securitycriticaldata.cs
- GeneralTransformGroup.cs
- TextStore.cs
- DataGrid.cs
- AssociatedControlConverter.cs
- CacheForPrimitiveTypes.cs
- AssemblyUtil.cs
- CollectionViewGroupRoot.cs
- XmlAnyElementAttributes.cs
- XmlQueryContext.cs
- NamespaceImport.cs
- PackageFilter.cs
- GZipDecoder.cs
- ExpressionBuilder.cs