private static bool TryParseGuid(String g, GuidStyles flags, ref GuidResult result)
{
if (g == null)
{
result.SetFailure(ParseFailureKind.Format, nameof(SR.Format_GuidUnrecognized));
return(false);
}
String guidString = g.Trim(); //Remove Whitespace
if (guidString.Length == 0)
{
result.SetFailure(ParseFailureKind.Format, nameof(SR.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, nameof(SR.Format_GuidUnrecognized));
return(false);
}
}
else
{
if ((flags & GuidStyles.RequireDashes) != 0)
{
// dashes are required
result.SetFailure(ParseFailureKind.Format, nameof(SR.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, nameof(SR.Format_GuidUnrecognized));
return(false);
}
}
else
{
if ((flags & GuidStyles.RequireBraces) != 0)
{
// braces are required
result.SetFailure(ParseFailureKind.Format, nameof(SR.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, nameof(SR.Format_GuidUnrecognized));
return(false);
}
}
else
{
if ((flags & GuidStyles.RequireParenthesis) != 0)
{
// parenthesis are required
result.SetFailure(ParseFailureKind.Format, nameof(SR.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, nameof(SR.Format_GuidUnrecognized), null, null, ex);
return(false);
}
catch (ArgumentException ex)
{
result.SetFailure(ParseFailureKind.FormatWithInnerException, nameof(SR.Format_GuidUnrecognized), null, null, ex);
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();
if (guidString.Length == 0)
{
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return(false);
}
bool flag = guidString.IndexOf('-', 0) >= 0;
if (flag)
{
if ((flags & (GuidStyles.DigitFormat | GuidStyles.AllowDashes)) == GuidStyles.None)
{
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return(false);
}
}
else if ((flags & GuidStyles.DigitFormat) != GuidStyles.None)
{
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return(false);
}
bool flag2 = guidString.IndexOf('{', 0) >= 0;
if (flag2)
{
if ((flags & (GuidStyles.RequireBraces | GuidStyles.AllowBraces)) == GuidStyles.None)
{
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return(false);
}
}
else if ((flags & GuidStyles.RequireBraces) != GuidStyles.None)
{
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return(false);
}
if (guidString.IndexOf('(', 0) >= 0)
{
if ((flags & (GuidStyles.RequireParenthesis | GuidStyles.AllowParenthesis)) == GuidStyles.None)
{
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return(false);
}
}
else if ((flags & GuidStyles.RequireParenthesis) != GuidStyles.None)
{
result.SetFailure(ParseFailureKind.Format, "Format_GuidUnrecognized");
return(false);
}
try
{
if (flag)
{
return(TryParseGuidWithDashes(guidString, ref result));
}
if (flag2)
{
return(TryParseGuidWithHexPrefix(guidString, ref result));
}
return(TryParseGuidWithNoStyle(guidString, ref result));
}
catch (IndexOutOfRangeException exception)
{
result.SetFailure(ParseFailureKind.FormatWithInnerException, "Format_GuidUnrecognized", null, null, exception);
return(false);
}
catch (ArgumentException exception2)
{
result.SetFailure(ParseFailureKind.FormatWithInnerException, "Format_GuidUnrecognized", null, null, exception2);
return(false);
}
}
