internal void Validate(bool condition, string message)
{
if (condition)
{
throw MibException.Create(message, this);
}
}
internal void ParseOidValue(out string parent, out uint value)
{
parent = null;
value = 0;
Symbol previous = null;
Symbol temp = NextNonEOLSymbol;
temp.Expect(Symbol.OpenBracket);
StringBuilder longParent = new StringBuilder();
temp = NextNonEOLSymbol;
longParent.Append(temp);
while ((temp = NextNonEOLSymbol) != null)
{
if (temp == Symbol.OpenParentheses)
{
longParent.Append(temp);
temp = NextNonEOLSymbol;
bool succeed = UInt32.TryParse(temp.ToString(), out value);
temp.Validate(!succeed, "not a decimal");
longParent.Append(temp);
temp = NextNonEOLSymbol;
temp.Expect(Symbol.CloseParentheses);
longParent.Append(temp);
continue;
}
if (temp == Symbol.CloseBracket)
{
parent = longParent.ToString();
return;
}
bool succeeded = UInt32.TryParse(temp.ToString(), out value);
if (succeeded)
{
// numerical way
while ((temp = NextNonEOLSymbol) != Symbol.CloseBracket)
{
longParent.Append(".").Append(value);
succeeded = UInt32.TryParse(temp.ToString(), out value);
temp.Validate(!succeeded, "not a decimal");
}
temp.Expect(Symbol.CloseBracket);
parent = longParent.ToString();
return;
}
longParent.Append(".");
longParent.Append(temp);
temp = NextNonEOLSymbol;
temp.Expect(Symbol.OpenParentheses);
longParent.Append(temp);
temp = NextNonEOLSymbol;
succeeded = UInt32.TryParse(temp.ToString(), out value);
temp.Validate(!succeeded, "not a decimal");
longParent.Append(temp);
temp = NextNonEOLSymbol;
temp.Expect(Symbol.CloseParentheses);
longParent.Append(temp);
previous = temp;
}
throw MibException.Create("end of file reached", previous);
}
