Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Guid.cs / 1305376 / Guid.cs
// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
namespace System {
using System;
using System.Globalization;
using System.Text;
using Microsoft.Win32;
using System.Runtime.InteropServices;
using System.Runtime.CompilerServices;
using System.Diagnostics.Contracts;
// Represents a Globally Unique Identifier.
[StructLayout(LayoutKind.Sequential)]
[Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public struct Guid : IFormattable, IComparable
#if GENERICS_WORK
, IComparable, IEquatable
#endif
{
public static readonly Guid Empty = new Guid();
////////////////////////////////////////////////////////////////////////////////
// Member variables
////////////////////////////////////////////////////////////////////////////////
private int _a;
private short _b;
private short _c;
private byte _d;
private byte _e;
private byte _f;
private byte _g;
private byte _h;
private byte _i;
private byte _j;
private byte _k;
////////////////////////////////////////////////////////////////////////////////
// Constructors
////////////////////////////////////////////////////////////////////////////////
// Creates a new guid from an array of bytes.
//
public Guid(byte[] b)
{
if (b==null)
throw new ArgumentNullException("b");
if (b.Length != 16)
throw new ArgumentException(Environment.GetResourceString("Arg_GuidArrayCtor", "16"));
Contract.EndContractBlock();
_a = ((int)b[3] << 24) | ((int)b[2] << 16) | ((int)b[1] << 8) | b[0];
_b = (short)(((int)b[5] << 8) | b[4]);
_c = (short)(((int)b[7] << 8) | b[6]);
_d = b[8];
_e = b[9];
_f = b[10];
_g = b[11];
_h = b[12];
_i = b[13];
_j = b[14];
_k = b[15];
}
[CLSCompliant(false)]
public Guid (uint a, ushort b, ushort c, byte d, byte e, byte f, byte g, byte h, byte i, byte j, byte k)
{
_a = (int)a;
_b = (short)b;
_c = (short)c;
_d = d;
_e = e;
_f = f;
_g = g;
_h = h;
_i = i;
_j = j;
_k = k;
}
// Creates a new GUID initialized to the value represented by the arguments.
//
public Guid(int a, short b, short c, byte[] d)
{
if (d==null)
throw new ArgumentNullException("d");
// Check that array is not too big
if(d.Length != 8)
throw new ArgumentException(Environment.GetResourceString("Arg_GuidArrayCtor", "8"));
Contract.EndContractBlock();
_a = a;
_b = b;
_c = c;
_d = d[0];
_e = d[1];
_f = d[2];
_g = d[3];
_h = d[4];
_i = d[5];
_j = d[6];
_k = d[7];
}
// Creates a new GUID initialized to the value represented by the
// arguments. The bytes are specified like this to avoid endianness issues.
//
public Guid(int a, short b, short c, byte d, byte e, byte f, byte g, byte h, byte i, byte j, byte k)
{
_a = a;
_b = b;
_c = c;
_d = d;
_e = e;
_f = f;
_g = g;
_h = h;
_i = i;
_j = j;
_k = k;
}
[Flags]
private enum GuidStyles {
None = 0x00000000,
AllowParenthesis = 0x00000001, //Allow the guid to be enclosed in parens
AllowBraces = 0x00000002, //Allow the guid to be enclosed in braces
AllowDashes = 0x00000004, //Allow the guid to contain dash group separators
AllowHexPrefix = 0x00000008, //Allow the guid to contain {0xdd,0xdd}
RequireParenthesis = 0x00000010, //Require the guid to be enclosed in parens
RequireBraces = 0x00000020, //Require the guid to be enclosed in braces
RequireDashes = 0x00000040, //Require the guid to contain dash group separators
RequireHexPrefix = 0x00000080, //Require the guid to contain {0xdd,0xdd}
HexFormat = RequireBraces | RequireHexPrefix, /* X */
NumberFormat = None, /* N */
DigitFormat = RequireDashes, /* D */
BraceFormat = RequireBraces | RequireDashes, /* B */
ParenthesisFormat = RequireParenthesis | RequireDashes, /* P */
Any = AllowParenthesis | AllowBraces | AllowDashes | AllowHexPrefix,
}
private enum GuidParseThrowStyle {
None = 0,
All = 1,
AllButOverflow = 2
}
private enum ParseFailureKind {
None = 0,
ArgumentNull = 1,
Format = 2,
FormatWithParameter = 3,
NativeException = 4,
FormatWithInnerException = 5
}
// This will store the result of the parsing. And it will eventually be used to construct a Guid instance.
private struct GuidResult {
internal Guid parsedGuid;
internal GuidParseThrowStyle throwStyle;
internal ParseFailureKind m_failure;
internal string m_failureMessageID;
internal object m_failureMessageFormatArgument;
internal string m_failureArgumentName;
internal Exception m_innerException;
internal void Init(GuidParseThrowStyle canThrow) {
parsedGuid = Guid.Empty;
throwStyle = canThrow;
}
internal void SetFailure(Exception nativeException) {
m_failure = ParseFailureKind.NativeException;
m_innerException = nativeException;
}
internal void SetFailure(ParseFailureKind failure, string failureMessageID) {
SetFailure(failure, failureMessageID, null, null, null);
}
internal void SetFailure(ParseFailureKind failure, string failureMessageID, object failureMessageFormatArgument) {
SetFailure(failure, failureMessageID, failureMessageFormatArgument, null, null);
}
internal void SetFailure(ParseFailureKind failure, string failureMessageID, object failureMessageFormatArgument,
string failureArgumentName, Exception innerException) {
Contract.Assert(failure != ParseFailureKind.NativeException, "ParseFailureKind.NativeException should not be used with this overload");
m_failure = failure;
m_failureMessageID = failureMessageID;
m_failureMessageFormatArgument = failureMessageFormatArgument;
m_failureArgumentName = failureArgumentName;
m_innerException = innerException;
if (throwStyle != GuidParseThrowStyle.None) {
throw GetGuidParseException();
}
}
internal Exception GetGuidParseException() {
switch (m_failure) {
case ParseFailureKind.ArgumentNull:
return new ArgumentNullException(m_failureArgumentName, Environment.GetResourceString(m_failureMessageID));
case ParseFailureKind.FormatWithInnerException:
return new FormatException(Environment.GetResourceString(m_failureMessageID), m_innerException);
case ParseFailureKind.FormatWithParameter:
return new FormatException(Environment.GetResourceString(m_failureMessageID, m_failureMessageFormatArgument));
case ParseFailureKind.Format:
return new FormatException(Environment.GetResourceString(m_failureMessageID));
case ParseFailureKind.NativeException:
return m_innerException;
default:
Contract.Assert(false, "Unknown GuidParseFailure: " + m_failure);
return new FormatException(Environment.GetResourceString("Format_GuidUnrecognized"));
}
}
}
// Creates a new guid based on the value in the string. The value is made up
// of hex digits speared by the dash ("-"). The string may begin and end with
// brackets ("{", "}").
//
// The string must be of the form dddddddd-dddd-dddd-dddd-dddddddddddd. where
// d is a hex digit. (That is 8 hex digits, followed by 4, then 4, then 4,
// then 12) such as: "CA761232-ED42-11CE-BACD-00AA0057B223"
//
public Guid(String g)
{
if (g==null) {
throw new ArgumentNullException("g");
}
Contract.EndContractBlock();
this = Guid.Empty;
GuidResult result = new GuidResult();
result.Init(GuidParseThrowStyle.All);
if (TryParseGuid(g, GuidStyles.Any, ref result)) {
this = result.parsedGuid;
}
else {
throw result.GetGuidParseException();
}
}
public static Guid Parse(String input)
{
if (input == null) {
throw new ArgumentNullException("input");
}
Contract.EndContractBlock();
GuidResult result = new GuidResult();
result.Init(GuidParseThrowStyle.AllButOverflow);
if (TryParseGuid(input, GuidStyles.Any, ref result)) {
return result.parsedGuid;
}
else {
throw result.GetGuidParseException();
}
}
public static bool TryParse(String input, out Guid result)
{
GuidResult parseResult = new GuidResult();
parseResult.Init(GuidParseThrowStyle.None);
if (TryParseGuid(input, GuidStyles.Any, ref parseResult)) {
result = parseResult.parsedGuid;
return true;
}
else {
result = Guid.Empty;
return false;
}
}
public static Guid ParseExact(String input, String format)
{
if (input == null)
throw new ArgumentNullException("input");
if (format == null)
throw new ArgumentNullException("format");
if( format.Length != 1) {
// all acceptable format strings are of length 1
throw new FormatException(Environment.GetResourceString("Format_InvalidGuidFormatSpecification"));
}
GuidStyles style;
char formatCh = format[0];
if (formatCh == 'D' || formatCh == 'd') {
style = GuidStyles.DigitFormat;
}
else if (formatCh == 'N' || formatCh == 'n') {
style = GuidStyles.NumberFormat;
}
else if (formatCh == 'B' || formatCh == 'b') {
style = GuidStyles.BraceFormat;
}
else if (formatCh == 'P' || formatCh == 'p') {
style = GuidStyles.ParenthesisFormat;
}
else if (formatCh == 'X' || formatCh == 'x') {
style = GuidStyles.HexFormat;
}
else {
throw new FormatException(Environment.GetResourceString("Format_InvalidGuidFormatSpecification"));
}
GuidResult result = new GuidResult();
result.Init(GuidParseThrowStyle.AllButOverflow);
if (TryParseGuid(input, style, ref result)) {
return result.parsedGuid;
}
else {
throw result.GetGuidParseException();
}
}
public static bool TryParseExact(String input, String format, out Guid result)
{
if (format == null || format.Length != 1) {
result = Guid.Empty;
return false;
}
GuidStyles style;
char formatCh = format[0];
if (formatCh == 'D' || formatCh == 'd') {
style = GuidStyles.DigitFormat;
}
else if (formatCh == 'N' || formatCh == 'n') {
style = GuidStyles.NumberFormat;
}
else if (formatCh == 'B' || formatCh == 'b') {
style = GuidStyles.BraceFormat;
}
else if (formatCh == 'P' || formatCh == 'p') {
style = GuidStyles.ParenthesisFormat;
}
else if (formatCh == 'X' || formatCh == 'x') {
style = GuidStyles.HexFormat;
}
else {
// invalid guid format specification
result = Guid.Empty;
return false;
}
GuidResult parseResult = new GuidResult();
parseResult.Init(GuidParseThrowStyle.None);
if (TryParseGuid(input, style, ref parseResult)) {
result = parseResult.parsedGuid;
return true;
}
else {
result = Guid.Empty;
return false;
}
}
private static bool TryParseGuid(String g, GuidStyles flags, ref GuidResult result)
{
if (g == null) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return false;
}
String guidString = g.Trim(); //Remove Whitespace
if (guidString.Length == 0) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return false;
}
// Check for dashes
bool dashesExistInString = (guidString.IndexOf('-', 0) >= 0);
if (dashesExistInString) {
if ((flags & (GuidStyles.AllowDashes | GuidStyles.RequireDashes)) == 0) {
// dashes are not allowed
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return false;
}
}
else {
if ((flags & GuidStyles.RequireDashes) != 0) {
// dashes are required
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return false;
}
}
// Check for braces
bool bracesExistInString = (guidString.IndexOf('{', 0) >= 0);
if (bracesExistInString) {
if ((flags & (GuidStyles.AllowBraces | GuidStyles.RequireBraces)) == 0) {
// braces are not allowed
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return false;
}
}
else {
if ((flags & GuidStyles.RequireBraces) != 0) {
// braces are required
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return false;
}
}
// Check for parenthesis
bool parenthesisExistInString = (guidString.IndexOf('(', 0) >= 0);
if (parenthesisExistInString) {
if ((flags & (GuidStyles.AllowParenthesis | GuidStyles.RequireParenthesis)) == 0) {
// parenthesis are not allowed
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return false;
}
}
else {
if ((flags & GuidStyles.RequireParenthesis) != 0) {
// parenthesis are required
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return false;
}
}
try {
// let's get on with the parsing
if (dashesExistInString) {
// Check if it's of the form [{|(]dddddddd-dddd-dddd-dddd-dddddddddddd[}|)]
return TryParseGuidWithDashes(guidString, ref result);
}
else if (bracesExistInString) {
// Check if it's of the form {0xdddddddd,0xdddd,0xdddd,{0xdd,0xdd,0xdd,0xdd,0xdd,0xdd,0xdd,0xdd}}
return TryParseGuidWithHexPrefix(guidString, ref result);
}
else {
// Check if it's of the form dddddddddddddddddddddddddddddddd
return TryParseGuidWithNoStyle(guidString, ref result);
}
}
catch(IndexOutOfRangeException ex) {
result.SetFailure(ParseFailureKind.FormatWithInnerException, "Format_GuidUnrecognized", null, null, ex);
return false;
}
catch (ArgumentException ex) {
result.SetFailure(ParseFailureKind.FormatWithInnerException, "Format_GuidUnrecognized", null, null, ex);
return false;
}
}
// Check if it's of the form {0xdddddddd,0xdddd,0xdddd,{0xdd,0xdd,0xdd,0xdd,0xdd,0xdd,0xdd,0xdd}}
private static bool TryParseGuidWithHexPrefix(String guidString, ref GuidResult result) {
int numStart = 0;
int numLen = 0;
// Eat all of the whitespace
guidString = EatAllWhitespace(guidString);
// Check for leading '{'
if(String.IsNullOrEmpty(guidString) || guidString[0] != '{') {
result.SetFailure(ParseFailureKind.Format, "Format_GuidBrace");
return false;
}
// Check for '0x'
if(!IsHexPrefix(guidString, 1)) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidHexPrefix", "{0xdddddddd, etc}");
return false;
}
// Find the end of this hex number (since it is not fixed length)
numStart = 3;
numLen = guidString.IndexOf(',', numStart) - numStart;
if(numLen <= 0) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidComma");
return false;
}
if (!StringToInt(guidString.Substring(numStart, numLen) /*first DWORD*/, -1, ParseNumbers.IsTight, out result.parsedGuid._a, ref result))
return false;
// Check for '0x'
if(!IsHexPrefix(guidString, numStart+numLen+1)) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidHexPrefix", "{0xdddddddd, 0xdddd, etc}");
return false;
}
// +3 to get by ',0x'
numStart = numStart + numLen + 3;
numLen = guidString.IndexOf(',', numStart) - numStart;
if(numLen <= 0) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidComma");
return false;
}
// Read in the number
if (!StringToShort(guidString.Substring(numStart, numLen) /*first DWORD*/, -1, ParseNumbers.IsTight, out result.parsedGuid._b, ref result))
return false;
// Check for '0x'
if(!IsHexPrefix(guidString, numStart+numLen+1)) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidHexPrefix", "{0xdddddddd, 0xdddd, 0xdddd, etc}");
return false;
}
// +3 to get by ',0x'
numStart = numStart + numLen + 3;
numLen = guidString.IndexOf(',', numStart) - numStart;
if(numLen <= 0) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidComma");
return false;
}
// Read in the number
if (!StringToShort(guidString.Substring(numStart, numLen) /*first DWORD*/, -1, ParseNumbers.IsTight, out result.parsedGuid._c, ref result))
return false;
// Check for '{'
if(guidString.Length <= numStart+numLen+1 || guidString[numStart+numLen+1] != '{') {
result.SetFailure(ParseFailureKind.Format, "Format_GuidBrace");
return false;
}
// Prepare for loop
numLen++;
byte[] bytes = new byte[8];
for(int i = 0; i < 8; i++)
{
// Check for '0x'
if(!IsHexPrefix(guidString, numStart+numLen+1)) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidHexPrefix", "{... { ... 0xdd, ...}}");
return false;
}
// +3 to get by ',0x' or '{0x' for first case
numStart = numStart + numLen + 3;
// Calculate number length
if(i < 7) // first 7 cases
{
numLen = guidString.IndexOf(',', numStart) - numStart;
if(numLen <= 0) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidComma");
return false;
}
}
else // last case ends with '}', not ','
{
numLen = guidString.IndexOf('}', numStart) - numStart;
if(numLen <= 0) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidBraceAfterLastNumber");
return false;
}
}
// Read in the number
uint number = (uint)Convert.ToInt32(guidString.Substring(numStart, numLen),16);
// check for overflow
if(number > 255) {
result.SetFailure(ParseFailureKind.Format, "Overflow_Byte");
return false;
}
bytes[i] = (byte)number;
}
result.parsedGuid._d = bytes[0];
result.parsedGuid._e = bytes[1];
result.parsedGuid._f = bytes[2];
result.parsedGuid._g = bytes[3];
result.parsedGuid._h = bytes[4];
result.parsedGuid._i = bytes[5];
result.parsedGuid._j = bytes[6];
result.parsedGuid._k = bytes[7];
// Check for last '}'
if(numStart+numLen+1 >= guidString.Length || guidString[numStart+numLen+1] != '}') {
result.SetFailure(ParseFailureKind.Format, "Format_GuidEndBrace");
return false;
}
// Check if we have extra characters at the end
if( numStart+numLen+1 != guidString.Length -1) {
result.SetFailure(ParseFailureKind.Format, "Format_ExtraJunkAtEnd");
return false;
}
return true;
}
// Check if it's of the form dddddddddddddddddddddddddddddddd
private static bool TryParseGuidWithNoStyle(String guidString, ref GuidResult result) {
int startPos=0;
int temp;
long templ;
int currentPos = 0;
if(guidString.Length != 32) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidInvLen");
return false;
}
for(int i= 0; i< guidString.Length; i++) {
char ch = guidString[i];
if(ch >= '0' && ch <= '9') {
continue;
}
else {
char upperCaseCh = Char.ToUpper(ch, CultureInfo.InvariantCulture);
if(upperCaseCh >= 'A' && upperCaseCh <= 'F') {
continue;
}
}
result.SetFailure(ParseFailureKind.Format, "Format_GuidInvalidChar");
return false;
}
if (!StringToInt(guidString.Substring(startPos, 8) /*first DWORD*/, -1, ParseNumbers.IsTight, out result.parsedGuid._a, ref result))
return false;
startPos += 8;
if (!StringToShort(guidString.Substring(startPos, 4), -1, ParseNumbers.IsTight, out result.parsedGuid._b, ref result))
return false;
startPos += 4;
if (!StringToShort(guidString.Substring(startPos, 4), -1, ParseNumbers.IsTight, out result.parsedGuid._c, ref result))
return false;
startPos += 4;
if (!StringToInt(guidString.Substring(startPos, 4), -1, ParseNumbers.IsTight, out temp, ref result))
return false;
startPos += 4;
currentPos = startPos;
if (!StringToLong(guidString, ref currentPos, startPos /*flags*/, out templ, ref result))
return false;
if (currentPos - startPos!=12) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidInvLen");
return false;
}
result.parsedGuid._d = (byte)(temp>>8);
result.parsedGuid._e = (byte)(temp);
temp = (int)(templ >> 32);
result.parsedGuid._f = (byte)(temp>>8);
result.parsedGuid._g = (byte)(temp);
temp = (int)(templ);
result.parsedGuid._h = (byte)(temp>>24);
result.parsedGuid._i = (byte)(temp>>16);
result.parsedGuid._j = (byte)(temp>>8);
result.parsedGuid._k = (byte)(temp);
return true;
}
// Check if it's of the form [{|(]dddddddd-dddd-dddd-dddd-dddddddddddd[}|)]
private static bool TryParseGuidWithDashes(String guidString, ref GuidResult result) {
int startPos=0;
int temp;
long templ;
int currentPos = 0;
// check to see that it's the proper length
if (guidString[0]=='{') {
if (guidString.Length!=38 || guidString[37]!='}') {
result.SetFailure(ParseFailureKind.Format, "Format_GuidInvLen");
return false;
}
startPos=1;
}
else if (guidString[0]=='(') {
if (guidString.Length!=38 || guidString[37]!=')') {
result.SetFailure(ParseFailureKind.Format, "Format_GuidInvLen");
return false;
}
startPos=1;
}
else if(guidString.Length != 36) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidInvLen");
return false;
}
if (guidString[8+startPos] != '-' ||
guidString[13+startPos] != '-' ||
guidString[18+startPos] != '-' ||
guidString[23+startPos] != '-') {
result.SetFailure(ParseFailureKind.Format, "Format_GuidDashes");
return false;
}
currentPos = startPos;
if (!StringToInt(guidString, ref currentPos, 8, ParseNumbers.NoSpace, out temp, ref result))
return false;
result.parsedGuid._a = temp;
++currentPos; //Increment past the '-';
if (!StringToInt(guidString, ref currentPos, 4, ParseNumbers.NoSpace, out temp, ref result))
return false;
result.parsedGuid._b = (short)temp;
++currentPos; //Increment past the '-';
if (!StringToInt(guidString, ref currentPos, 4, ParseNumbers.NoSpace, out temp, ref result))
return false;
result.parsedGuid._c = (short)temp;
++currentPos; //Increment past the '-';
if (!StringToInt(guidString, ref currentPos, 4, ParseNumbers.NoSpace, out temp, ref result))
return false;
++currentPos; //Increment past the '-';
startPos=currentPos;
if (!StringToLong(guidString, ref currentPos, ParseNumbers.NoSpace, out templ, ref result))
return false;
if (currentPos - startPos != 12) {
result.SetFailure(ParseFailureKind.Format, "Format_GuidInvLen");
return false;
}
result.parsedGuid._d = (byte)(temp>>8);
result.parsedGuid._e = (byte)(temp);
temp = (int)(templ >> 32);
result.parsedGuid._f = (byte)(temp>>8);
result.parsedGuid._g = (byte)(temp);
temp = (int)(templ);
result.parsedGuid._h = (byte)(temp>>24);
result.parsedGuid._i = (byte)(temp>>16);
result.parsedGuid._j = (byte)(temp>>8);
result.parsedGuid._k = (byte)(temp);
return true;
}
//
// StringToShort, StringToInt, and StringToLong are wrappers around COMUtilNative integer parsing routines;
//
[System.Security.SecuritySafeCritical]
private static unsafe bool StringToShort(String str, int requiredLength, int flags, out short result, ref GuidResult parseResult) {
return StringToShort(str, null, requiredLength, flags, out result, ref parseResult);
}
[System.Security.SecuritySafeCritical]
private static unsafe bool StringToShort(String str, ref int parsePos, int requiredLength, int flags, out short result, ref GuidResult parseResult) {
fixed(int * ppos = &parsePos) {
return StringToShort(str, ppos, requiredLength, flags, out result, ref parseResult);
}
}
[System.Security.SecurityCritical]
private static unsafe bool StringToShort(String str, int* parsePos, int requiredLength, int flags, out short result, ref GuidResult parseResult) {
result = 0;
int x;
bool retValue = StringToInt(str, parsePos, requiredLength, flags, out x, ref parseResult);
result = (short)x;
return retValue;
}
[System.Security.SecuritySafeCritical]
private static unsafe bool StringToInt(String str, int requiredLength, int flags, out int result, ref GuidResult parseResult) {
return StringToInt(str, null, requiredLength, flags, out result, ref parseResult);
}
[System.Security.SecuritySafeCritical]
private static unsafe bool StringToInt(String str, ref int parsePos, int requiredLength, int flags, out int result, ref GuidResult parseResult) {
fixed(int * ppos = &parsePos) {
return StringToInt(str, ppos, requiredLength, flags, out result, ref parseResult);
}
}
[System.Security.SecurityCritical]
private static unsafe bool StringToInt(String str, int* parsePos, int requiredLength, int flags, out int result, ref GuidResult parseResult) {
result = 0;
int currStart = (parsePos == null) ? 0 : (*parsePos);
try {
result = ParseNumbers.StringToInt(str, 16, flags, parsePos);
}
catch (OverflowException ex) {
if (parseResult.throwStyle == GuidParseThrowStyle.All) {
throw;
}
else if (parseResult.throwStyle == GuidParseThrowStyle.AllButOverflow) {
throw new FormatException(Environment.GetResourceString("Format_GuidUnrecognized"), ex);
}
else {
parseResult.SetFailure(ex);
return false;
}
}
catch (Exception ex) {
if (parseResult.throwStyle == GuidParseThrowStyle.None) {
parseResult.SetFailure(ex);
return false;
}
else {
throw;
}
}
//If we didn't parse enough characters, there's clearly an error.
if (requiredLength != -1 && parsePos != null && (*parsePos) - currStart != requiredLength) {
parseResult.SetFailure(ParseFailureKind.Format, "Format_GuidInvalidChar");
return false;
}
return true;
}
[System.Security.SecuritySafeCritical]
private static unsafe bool StringToLong(String str, int flags, out long result, ref GuidResult parseResult) {
return StringToLong(str, null, flags, out result, ref parseResult);
}
[System.Security.SecuritySafeCritical]
private static unsafe bool StringToLong(String str, ref int parsePos, int flags, out long result, ref GuidResult parseResult) {
fixed(int * ppos = &parsePos) {
return StringToLong(str, ppos, flags, out result, ref parseResult);
}
}
[System.Security.SecuritySafeCritical]
private static unsafe bool StringToLong(String str, int* parsePos, int flags, out long result, ref GuidResult parseResult) {
result = 0;
try {
result = ParseNumbers.StringToLong(str, 16, flags, parsePos);
}
catch (OverflowException ex) {
if (parseResult.throwStyle == GuidParseThrowStyle.All) {
throw;
}
else if (parseResult.throwStyle == GuidParseThrowStyle.AllButOverflow) {
throw new FormatException(Environment.GetResourceString("Format_GuidUnrecognized"), ex);
}
else {
parseResult.SetFailure(ex);
return false;
}
}
catch (Exception ex) {
if (parseResult.throwStyle == GuidParseThrowStyle.None) {
parseResult.SetFailure(ex);
return false;
}
else {
throw;
}
}
return true;
}
private static String EatAllWhitespace(String str)
{
int newLength = 0;
char[] chArr = new char[str.Length];
char curChar;
// Now get each char from str and if it is not whitespace add it to chArr
for(int i = 0; i < str.Length; i++)
{
curChar = str[i];
if(!Char.IsWhiteSpace(curChar))
{
chArr[newLength++] = curChar;
}
}
// Return a new string based on chArr
return new String(chArr, 0, newLength);
}
private static bool IsHexPrefix(String str, int i)
{
if(str.Length > i+1 && str[i] == '0' && (Char.ToLower(str[i+1], CultureInfo.InvariantCulture) == 'x'))
return true;
else
return false;
}
// Returns an unsigned byte array containing the GUID.
public byte[] ToByteArray()
{
byte[] g = new byte[16];
g[0] = (byte)(_a);
g[1] = (byte)(_a >> 8);
g[2] = (byte)(_a >> 16);
g[3] = (byte)(_a >> 24);
g[4] = (byte)(_b);
g[5] = (byte)(_b >> 8);
g[6] = (byte)(_c);
g[7] = (byte)(_c >> 8);
g[8] = _d;
g[9] = _e;
g[10] = _f;
g[11] = _g;
g[12] = _h;
g[13] = _i;
g[14] = _j;
g[15] = _k;
return g;
}
// Returns the guid in "registry" format.
public override String ToString()
{
return ToString("D",null);
}
public override int GetHashCode()
{
return _a ^ (((int)_b << 16) | (int)(ushort)_c) ^ (((int)_f << 24) | _k);
}
// Returns true if and only if the guid represented
// by o is the same as this instance.
public override bool Equals(Object o)
{
Guid g;
// Check that o is a Guid first
if(o == null || !(o is Guid))
return false;
else g = (Guid) o;
// Now compare each of the elements
if(g._a != _a)
return false;
if(g._b != _b)
return false;
if(g._c != _c)
return false;
if (g._d != _d)
return false;
if (g._e != _e)
return false;
if (g._f != _f)
return false;
if (g._g != _g)
return false;
if (g._h != _h)
return false;
if (g._i != _i)
return false;
if (g._j != _j)
return false;
if (g._k != _k)
return false;
return true;
}
public bool Equals(Guid g)
{
// Now compare each of the elements
if(g._a != _a)
return false;
if(g._b != _b)
return false;
if(g._c != _c)
return false;
if (g._d != _d)
return false;
if (g._e != _e)
return false;
if (g._f != _f)
return false;
if (g._g != _g)
return false;
if (g._h != _h)
return false;
if (g._i != _i)
return false;
if (g._j != _j)
return false;
if (g._k != _k)
return false;
return true;
}
private int GetResult(uint me, uint them) {
if (me 9) ? a - 10 + 0x61 : a + 0x30);
}
private static int HexsToChars(char[] guidChars, int offset, int a, int b)
{
return HexsToChars(guidChars, offset, a, b, false);
}
private static int HexsToChars(char[] guidChars, int offset, int a, int b, bool hex)
{
if (hex) {
guidChars[offset++] = '0';
guidChars[offset++] = 'x';
}
guidChars[offset++] = HexToChar(a>>4);
guidChars[offset++] = HexToChar(a);
if (hex) {
guidChars[offset++] = ',';
guidChars[offset++] = '0';
guidChars[offset++] = 'x';
}
guidChars[offset++] = HexToChar(b>>4);
guidChars[offset++] = HexToChar(b);
return offset;
}
// IFormattable interface
// We currently ignore provider
public String ToString(String format, IFormatProvider provider)
{
if (format == null || format.Length == 0)
format = "D";
char[] guidChars;
int offset = 0;
int strLength = 38;
bool dash = true;
bool hex = false;
if( format.Length != 1) {
// all acceptable format strings are of length 1
throw new FormatException(Environment.GetResourceString("Format_InvalidGuidFormatSpecification"));
}
char formatCh = format[0];
if (formatCh == 'D' || formatCh == 'd') {
guidChars = new char[36];
strLength = 36;
}
else if (formatCh == 'N' || formatCh == 'n') {
guidChars = new char[32];
strLength = 32;
dash = false;
}
else if (formatCh == 'B' || formatCh == 'b') {
guidChars = new char[38];
guidChars[offset++] = '{';
guidChars[37] = '}';
}
else if (formatCh == 'P' || formatCh == 'p') {
guidChars = new char[38];
guidChars[offset++] = '(';
guidChars[37] = ')';
}
else if (formatCh == 'X' || formatCh == 'x') {
guidChars = new char[68];
guidChars[offset++] = '{';
guidChars[67] = '}';
strLength=68;
dash = false;
hex = true;
}
else {
throw new FormatException(Environment.GetResourceString("Format_InvalidGuidFormatSpecification"));
}
if (hex) {
// {0xdddddddd,0xdddd,0xdddd,{0xdd,0xdd,0xdd,0xdd,0xdd,0xdd,0xdd,0xdd}}
guidChars[offset++] = '0';
guidChars[offset++] = 'x';
offset = HexsToChars(guidChars, offset, _a >> 24, _a >> 16);
offset = HexsToChars(guidChars, offset, _a >> 8, _a);
guidChars[offset++] = ',';
guidChars[offset++] = '0';
guidChars[offset++] = 'x';
offset = HexsToChars(guidChars, offset, _b >> 8, _b);
guidChars[offset++] = ',';
guidChars[offset++] = '0';
guidChars[offset++] = 'x';
offset = HexsToChars(guidChars, offset, _c >> 8, _c);
guidChars[offset++] = ',';
guidChars[offset++] = '{';
offset = HexsToChars(guidChars, offset, _d, _e, true);
guidChars[offset++] = ',';
offset = HexsToChars(guidChars, offset, _f, _g, true);
guidChars[offset++] = ',';
offset = HexsToChars(guidChars, offset, _h, _i, true);
guidChars[offset++] = ',';
offset = HexsToChars(guidChars, offset, _j, _k, true);
guidChars[offset++] = '}';
}
else {
// [{|(]dddddddd[-]dddd[-]dddd[-]dddd[-]dddddddddddd[}|)]
offset = HexsToChars(guidChars, offset, _a >> 24, _a >> 16);
offset = HexsToChars(guidChars, offset, _a >> 8, _a);
if (dash) guidChars[offset++] = '-';
offset = HexsToChars(guidChars, offset, _b >> 8, _b);
if (dash) guidChars[offset++] = '-';
offset = HexsToChars(guidChars, offset, _c >> 8, _c);
if (dash) guidChars[offset++] = '-';
offset = HexsToChars(guidChars, offset, _d, _e);
if (dash) guidChars[offset++] = '-';
offset = HexsToChars(guidChars, offset, _f, _g);
offset = HexsToChars(guidChars, offset, _h, _i);
offset = HexsToChars(guidChars, offset, _j, _k);
}
return new String(guidChars, 0, strLength);
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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- PointKeyFrameCollection.cs
- RemoteCryptoSignHashRequest.cs
- WebPartConnectionsDisconnectVerb.cs
- AssertSection.cs
- HMAC.cs
- XdrBuilder.cs
- XmlDictionaryReaderQuotas.cs
- ConfigurationManager.cs
- SystemWebSectionGroup.cs
- ChangeInterceptorAttribute.cs
- OpenFileDialog.cs
- ListItemCollection.cs
- RegexInterpreter.cs
- DoubleLink.cs
- TextControl.cs
- SuppressIldasmAttribute.cs
- TreeViewBindingsEditorForm.cs
- TreeView.cs
- DataGridViewRowsAddedEventArgs.cs
- SqlErrorCollection.cs
- KeyedCollection.cs
- Enlistment.cs
- ShaderEffect.cs
- EventDescriptor.cs
- FileFormatException.cs
- SchemaTableColumn.cs
- SQLRoleProvider.cs
- NullableIntAverageAggregationOperator.cs
- NeutralResourcesLanguageAttribute.cs
- WebPermission.cs
- ClassicBorderDecorator.cs
- SqlTypeConverter.cs
- QueryOutputWriter.cs
- LoadItemsEventArgs.cs
- StorageComplexTypeMapping.cs
- CompressionTracing.cs
- DataSourceXmlSerializationAttribute.cs
- CompositeActivityCodeGenerator.cs
- XmlTextEncoder.cs
- Gdiplus.cs
- AuthenticodeSignatureInformation.cs
- InvalidCommandTreeException.cs
- AspNetSynchronizationContext.cs
- XomlCompiler.cs
- ClosableStream.cs
- BamlVersionHeader.cs
- MessageDecoder.cs
- ConstantSlot.cs
- DocumentOrderComparer.cs
- PointHitTestParameters.cs
- CodeTypeMemberCollection.cs
- DataReaderContainer.cs
- PersonalizationStateInfoCollection.cs
- DataGridViewIntLinkedList.cs
- GPStream.cs
- TypeFieldSchema.cs
- MetricEntry.cs
- ViewValidator.cs
- XPathException.cs
- WebBrowserPermission.cs
- KeyNotFoundException.cs
- TypedRowHandler.cs
- SchemaEntity.cs
- ObjectQuery.cs
- ConversionContext.cs
- ConstraintCollection.cs
- SessionSwitchEventArgs.cs
- XsltSettings.cs
- GcHandle.cs
- BooleanKeyFrameCollection.cs
- HTMLTagNameToTypeMapper.cs
- CacheMemory.cs
- TextStore.cs
- WorkflowInstanceContextProvider.cs
- DateTimeAutomationPeer.cs
- TrackingSection.cs
- ProcessThread.cs
- HandledMouseEvent.cs
- VirtualPathProvider.cs
- SettingsPropertyValue.cs
- XmlQueryOutput.cs
- NetSectionGroup.cs
- GiveFeedbackEventArgs.cs
- ResolveDuplexAsyncResult.cs
- CodeObjectCreateExpression.cs
- WebResponse.cs
- InputLanguageCollection.cs
- NavigationWindowAutomationPeer.cs
- DispatcherHookEventArgs.cs
- SHA256.cs
- UIElement3D.cs
- embossbitmapeffect.cs
- ResetableIterator.cs
- WebPartZoneDesigner.cs
- Int32Animation.cs
- FastEncoderWindow.cs
- QilLiteral.cs
- EventHandlingScope.cs
- StatusBarDrawItemEvent.cs
- CellNormalizer.cs