private static string GenerateAlias(string input, int desiredLength, bool mapToAnsi, bool skipInvalidCharacter, char invalidCharacterReplacement)
{
if (string.IsNullOrEmpty(input))
{
throw new ArgumentNullException("input");
}
if (AliasHelper.Analyze(invalidCharacterReplacement) != AliasHelper.CharacterCategory.RegularCharacter)
{
throw new ArgumentOutOfRangeException("invalidCharacterReplacement", invalidCharacterReplacement, new LocalizedString("DEV BUG: Parameter 'invalidCharacterReplacement' should be category of CharacterCategory.RegularCharacter."));
}
if (mapToAnsi)
{
input = UnicodeToAnsiConverter.Convert(input, skipInvalidCharacter, invalidCharacterReplacement);
}
StringBuilder stringBuilder = new StringBuilder(input.Length);
AliasHelper.RecognisingState recognisingState = AliasHelper.RecognisingState.Start;
int num = 0;
int num2 = 0;
while (input.Length > num && desiredLength > num2)
{
char c = input[num];
AliasHelper.CharacterCategory characterCategory = AliasHelper.Analyze(c);
if (characterCategory != AliasHelper.CharacterCategory.WhiteSpaceSymbol)
{
switch (recognisingState)
{
case AliasHelper.RecognisingState.Start:
switch (characterCategory)
{
case AliasHelper.CharacterCategory.RegularCharacter:
recognisingState = AliasHelper.RecognisingState.Terminal;
break;
case AliasHelper.CharacterCategory.InvalidCharacter:
case AliasHelper.CharacterCategory.DotSymbol:
if (skipInvalidCharacter)
{
goto IL_149;
}
c = invalidCharacterReplacement;
recognisingState = AliasHelper.RecognisingState.Terminal;
break;
}
break;
case AliasHelper.RecognisingState.Terminal:
switch (characterCategory)
{
case AliasHelper.CharacterCategory.InvalidCharacter:
if (skipInvalidCharacter)
{
goto IL_149;
}
c = invalidCharacterReplacement;
break;
case AliasHelper.CharacterCategory.DotSymbol:
if (input.Length - 1 == num || desiredLength - 1 == num2)
{
if (skipInvalidCharacter)
{
goto IL_149;
}
c = invalidCharacterReplacement;
}
else
{
recognisingState = AliasHelper.RecognisingState.Middle;
}
break;
}
break;
case AliasHelper.RecognisingState.Middle:
switch (characterCategory)
{
case AliasHelper.CharacterCategory.RegularCharacter:
recognisingState = AliasHelper.RecognisingState.Terminal;
break;
case AliasHelper.CharacterCategory.InvalidCharacter:
case AliasHelper.CharacterCategory.DotSymbol:
if (skipInvalidCharacter && input.Length - 1 > num && desiredLength - 1 > num2)
{
goto IL_149;
}
c = invalidCharacterReplacement;
recognisingState = AliasHelper.RecognisingState.Terminal;
break;
}
break;
}
stringBuilder.Append(c);
num2++;
}
IL_149:
num++;
}
if (AliasHelper.RecognisingState.Terminal != recognisingState)
{
return(null);
}
return(stringBuilder.ToString());
}
// Note: this type is marked as 'beforefieldinit'.
static AliasHelper()
{
AliasHelper.CharacterCategory[] array = new AliasHelper.CharacterCategory[256];
array[0] = AliasHelper.CharacterCategory.InvalidCharacter;
array[1] = AliasHelper.CharacterCategory.InvalidCharacter;
array[2] = AliasHelper.CharacterCategory.InvalidCharacter;
array[3] = AliasHelper.CharacterCategory.InvalidCharacter;
array[4] = AliasHelper.CharacterCategory.InvalidCharacter;
array[5] = AliasHelper.CharacterCategory.InvalidCharacter;
array[6] = AliasHelper.CharacterCategory.InvalidCharacter;
array[7] = AliasHelper.CharacterCategory.InvalidCharacter;
array[8] = AliasHelper.CharacterCategory.InvalidCharacter;
array[9] = AliasHelper.CharacterCategory.WhiteSpaceSymbol;
array[10] = AliasHelper.CharacterCategory.InvalidCharacter;
array[11] = AliasHelper.CharacterCategory.InvalidCharacter;
array[12] = AliasHelper.CharacterCategory.InvalidCharacter;
array[13] = AliasHelper.CharacterCategory.InvalidCharacter;
array[14] = AliasHelper.CharacterCategory.InvalidCharacter;
array[15] = AliasHelper.CharacterCategory.InvalidCharacter;
array[16] = AliasHelper.CharacterCategory.InvalidCharacter;
array[17] = AliasHelper.CharacterCategory.InvalidCharacter;
array[18] = AliasHelper.CharacterCategory.InvalidCharacter;
array[19] = AliasHelper.CharacterCategory.InvalidCharacter;
array[20] = AliasHelper.CharacterCategory.InvalidCharacter;
array[21] = AliasHelper.CharacterCategory.InvalidCharacter;
array[22] = AliasHelper.CharacterCategory.InvalidCharacter;
array[23] = AliasHelper.CharacterCategory.InvalidCharacter;
array[24] = AliasHelper.CharacterCategory.InvalidCharacter;
array[25] = AliasHelper.CharacterCategory.InvalidCharacter;
array[26] = AliasHelper.CharacterCategory.InvalidCharacter;
array[27] = AliasHelper.CharacterCategory.InvalidCharacter;
array[28] = AliasHelper.CharacterCategory.InvalidCharacter;
array[29] = AliasHelper.CharacterCategory.InvalidCharacter;
array[30] = AliasHelper.CharacterCategory.InvalidCharacter;
array[31] = AliasHelper.CharacterCategory.InvalidCharacter;
array[32] = AliasHelper.CharacterCategory.WhiteSpaceSymbol;
array[34] = AliasHelper.CharacterCategory.InvalidCharacter;
array[40] = AliasHelper.CharacterCategory.InvalidCharacter;
array[41] = AliasHelper.CharacterCategory.InvalidCharacter;
array[44] = AliasHelper.CharacterCategory.InvalidCharacter;
array[46] = AliasHelper.CharacterCategory.DotSymbol;
array[58] = AliasHelper.CharacterCategory.InvalidCharacter;
array[59] = AliasHelper.CharacterCategory.InvalidCharacter;
array[60] = AliasHelper.CharacterCategory.InvalidCharacter;
array[62] = AliasHelper.CharacterCategory.InvalidCharacter;
array[64] = AliasHelper.CharacterCategory.InvalidCharacter;
array[91] = AliasHelper.CharacterCategory.InvalidCharacter;
array[92] = AliasHelper.CharacterCategory.InvalidCharacter;
array[93] = AliasHelper.CharacterCategory.InvalidCharacter;
array[127] = AliasHelper.CharacterCategory.InvalidCharacter;
array[128] = AliasHelper.CharacterCategory.InvalidCharacter;
array[129] = AliasHelper.CharacterCategory.InvalidCharacter;
array[130] = AliasHelper.CharacterCategory.InvalidCharacter;
array[131] = AliasHelper.CharacterCategory.InvalidCharacter;
array[132] = AliasHelper.CharacterCategory.InvalidCharacter;
array[133] = AliasHelper.CharacterCategory.InvalidCharacter;
array[134] = AliasHelper.CharacterCategory.InvalidCharacter;
array[135] = AliasHelper.CharacterCategory.InvalidCharacter;
array[136] = AliasHelper.CharacterCategory.InvalidCharacter;
array[137] = AliasHelper.CharacterCategory.InvalidCharacter;
array[138] = AliasHelper.CharacterCategory.InvalidCharacter;
array[139] = AliasHelper.CharacterCategory.InvalidCharacter;
array[140] = AliasHelper.CharacterCategory.InvalidCharacter;
array[141] = AliasHelper.CharacterCategory.InvalidCharacter;
array[142] = AliasHelper.CharacterCategory.InvalidCharacter;
array[143] = AliasHelper.CharacterCategory.InvalidCharacter;
array[144] = AliasHelper.CharacterCategory.InvalidCharacter;
array[145] = AliasHelper.CharacterCategory.InvalidCharacter;
array[146] = AliasHelper.CharacterCategory.InvalidCharacter;
array[147] = AliasHelper.CharacterCategory.InvalidCharacter;
array[148] = AliasHelper.CharacterCategory.InvalidCharacter;
array[149] = AliasHelper.CharacterCategory.InvalidCharacter;
array[150] = AliasHelper.CharacterCategory.InvalidCharacter;
array[151] = AliasHelper.CharacterCategory.InvalidCharacter;
array[152] = AliasHelper.CharacterCategory.InvalidCharacter;
array[153] = AliasHelper.CharacterCategory.InvalidCharacter;
array[154] = AliasHelper.CharacterCategory.InvalidCharacter;
array[155] = AliasHelper.CharacterCategory.InvalidCharacter;
array[156] = AliasHelper.CharacterCategory.InvalidCharacter;
array[157] = AliasHelper.CharacterCategory.InvalidCharacter;
array[158] = AliasHelper.CharacterCategory.InvalidCharacter;
array[159] = AliasHelper.CharacterCategory.InvalidCharacter;
array[160] = AliasHelper.CharacterCategory.InvalidCharacter;
AliasHelper.CharactersCategoryMap = array;
}
