public static bool TryGetCanonical(IList <string> components, bool stripDdas, out string canonicalAddress)
{
if (components.Count > X400AddressParser.CanonicalOrder.Length)
{
canonicalAddress = null;
return(false);
}
int num = X400AddressParser.CanonicalOrder.Length;
if (stripDdas)
{
num -= 4;
}
StringBuilder stringBuilder = new StringBuilder();
for (int i = 0; i < num; i++)
{
X400ComponentType x400ComponentType = X400AddressParser.CanonicalOrder[i];
if (x400ComponentType < (X400ComponentType)components.Count)
{
string text = components[(int)x400ComponentType];
if (text != null)
{
X400AddressParser.AddComponent(stringBuilder, x400ComponentType, text);
}
}
}
canonicalAddress = stringBuilder.ToString();
return(true);
}
private static void AddComponent(StringBuilder builder, X400ComponentType type, string value)
{
if (type < X400ComponentType.DDA)
{
builder.Append(X400AddressParser.Keys[(int)type]);
builder.Append(X400AddressParser.KeySeparators[0]);
}
else
{
builder.Append(X400AddressParser.Keys[17]);
builder.Append(X400AddressParser.KeySeparators[1]);
}
foreach (char c in value)
{
if (c == ';' || c == '\\')
{
builder.Append('\\');
}
builder.Append(c);
}
builder.Append(';');
}
private static bool TryParse(string s, int maxComponentsCount, bool addressSpace, bool locallyScoped, out IList <string> components, out bool endingWithSemicolon)
{
if (maxComponentsCount <= 0 || maxComponentsCount > 21)
{
throw new InvalidOperationException("maxComponentsCount is out of range");
}
endingWithSemicolon = false;
components = null;
if (s == null)
{
return(false);
}
int num = 0;
char c = '/';
if (s.Length >= 2 && s[0] == c)
{
num++;
}
else
{
c = ';';
}
List <string> list = new List <string>(maxComponentsCount);
for (int i = 0; i < maxComponentsCount; i++)
{
list.Add(null);
}
int num2 = 0;
int j = num;
int length = s.Length;
while (j < length)
{
while (j < length && (' ' == s[j] || '\t' == s[j]))
{
j++;
}
if (j == length)
{
break;
}
int num3 = s.IndexOfAny(X400AddressParser.KeySeparators, j);
if (-1 == num3 || j == num3)
{
return(false);
}
X400ComponentType componentType = X400AddressParser.GetComponentType(s, j, num3 - j);
if (X400ComponentType.Unsupported == componentType)
{
return(false);
}
if ((componentType == X400ComponentType.DDA && s[num3] != X400AddressParser.KeySeparators[1]) || (componentType != X400ComponentType.DDA && s[num3] != X400AddressParser.KeySeparators[0]))
{
return(false);
}
if (addressSpace && X400ComponentType.X121Address == componentType)
{
return(false);
}
string text;
j = X400AddressParser.GetUnescapedValue(s, num3 + 1, locallyScoped, c, out text, out endingWithSemicolon);
if (X400AddressParser.MaxComponentLengths[(int)componentType] < text.Length)
{
return(false);
}
if (componentType == X400ComponentType.DDA && num2++ == 4)
{
return(false);
}
if (maxComponentsCount > (int)componentType)
{
if (componentType != X400ComponentType.DDA)
{
list[(int)componentType] = text;
}
else
{
int num4 = 17 + num2 - 1;
if (num4 < maxComponentsCount)
{
list[num4] = text;
}
}
}
}
bool flag = false;
for (int k = 4; k <= 7; k++)
{
if (flag)
{
list[k] = null;
}
else
{
flag = string.IsNullOrEmpty(list[k]);
}
}
components = list;
return(true);
}