// synonyms hashtable is meant to be read-only translation of parsed string
// keywords/synonyms to a known keyword string
internal DbConnectionOptions(string connectionString, Hashtable synonyms)
{
_parsetable = new Hashtable();
_usersConnectionString = ((null != connectionString) ? connectionString : "");
// first pass on parsing, initial syntax check
if (0 < _usersConnectionString.Length)
{
KeyChain = ParseInternal(_parsetable, _usersConnectionString, synonyms);
}
}
private static NameValuePair ParseInternal(Hashtable parsetable, string connectionString, Hashtable synonyms)
{
Debug.Assert(null != connectionString, "null connectionstring");
StringBuilder buffer = new StringBuilder();
NameValuePair localKeychain = null, keychain = null;
#if DEBUG
try
{
#endif
int nextStartPosition = 0;
int endPosition = connectionString.Length;
while (nextStartPosition < endPosition)
{
int startPosition = nextStartPosition;
string keyname, keyvalue;
nextStartPosition = GetKeyValuePair(connectionString, startPosition, buffer, out keyname, out keyvalue);
if (string.IsNullOrEmpty(keyname))
{
// if (nextStartPosition != endPosition) { throw; }
break;
}
#if DEBUG
Debug.Assert(IsKeyNameValid(keyname), "ParseFailure, invalid keyname");
Debug.Assert(IsValueValidInternal(keyvalue), "parse failure, invalid keyvalue");
#endif
string realkeyname = ((null != synonyms) ? (string)synonyms[keyname] : keyname);
if (!IsKeyNameValid(realkeyname))
{
throw EntityUtil.ADP_KeywordNotSupported(keyname);
}
parsetable[realkeyname] = keyvalue; // last key-value pair wins (or first)
if (null != localKeychain)
{
localKeychain = localKeychain.Next = new NameValuePair(realkeyname, keyvalue, nextStartPosition - startPosition);
}
else
{ // first time only - don't contain modified chain from UDL file
keychain = localKeychain = new NameValuePair(realkeyname, keyvalue, nextStartPosition - startPosition);
}
}
#if DEBUG
}
catch (ArgumentException e)
{
ParseComparision(parsetable, connectionString, synonyms, e);
throw;
}
ParseComparision(parsetable, connectionString, synonyms, null);
#endif
return keychain;
}