private static Hashtable SplitConnectionString(string connectionString, Hashtable synonyms)
{
var parsetable = new Hashtable();
var parser = _connectionStringRegex;
const int KeyIndex = 1, ValueIndex = 2;
Debug.Assert(KeyIndex == parser.GroupNumberFromName("key"), "wrong key index");
Debug.Assert(ValueIndex == parser.GroupNumberFromName("value"), "wrong value index");
if (null != connectionString)
{
var match = parser.Match(connectionString);
if (!match.Success ||
(match.Length != connectionString.Length))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax(match.Length));
}
var indexValue = 0;
var keyvalues = match.Groups[ValueIndex].Captures;
foreach (Capture keypair in match.Groups[KeyIndex].Captures)
{
var keyname = keypair.Value.Replace("==", "=").ToLowerInvariant();
var keyvalue = keyvalues[indexValue++].Value;
if (0 < keyvalue.Length)
{
switch (keyvalue[0])
{
case '\"':
keyvalue = keyvalue.Substring(1, keyvalue.Length - 2).Replace("\"\"", "\"");
break;
case '\'':
keyvalue = keyvalue.Substring(1, keyvalue.Length - 2).Replace("\'\'", "\'");
break;
default:
break;
}
}
else
{
keyvalue = null;
}
var realkeyname = ((null != synonyms) ? (string)synonyms[keyname] : keyname);
if (!IsKeyNameValid(realkeyname))
{
throw new ArgumentException(Strings.ADP_KeywordNotSupported(keyname));
}
parsetable[realkeyname] = keyvalue; // last key-value pair wins (or first)
}
}
return(parsetable);
}
private static int GetKeyValuePair(
string connectionString, int currentPosition, StringBuilder buffer, out string keyname, out string keyvalue)
{
var startposition = currentPosition;
buffer.Length = 0;
keyname = null;
keyvalue = null;
var currentChar = '\0';
var parserState = ParserState.NothingYet;
var length = connectionString.Length;
for (; currentPosition < length; ++currentPosition)
{
currentChar = connectionString[currentPosition];
switch (parserState)
{
case ParserState.NothingYet: // [\\s;]*
if ((';' == currentChar) ||
Char.IsWhiteSpace(currentChar))
{
continue;
}
if ('\0' == currentChar)
{
parserState = ParserState.NullTermination;
continue;
}
if (Char.IsControl(currentChar))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax(startposition));
}
startposition = currentPosition;
if ('=' != currentChar)
{
parserState = ParserState.Key;
break;
}
else
{
parserState = ParserState.KeyEqual;
continue;
}
case ParserState.Key: // (?<key>([^=\\s\\p{Cc}]|\\s+[^=\\s\\p{Cc}]|\\s+==|==)+)
if ('=' == currentChar)
{
parserState = ParserState.KeyEqual;
continue;
}
if (Char.IsWhiteSpace(currentChar))
{
break;
}
if (Char.IsControl(currentChar))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax(startposition));
}
break;
case ParserState.KeyEqual: // \\s*=(?!=)\\s*
if ('=' == currentChar)
{
parserState = ParserState.Key;
break;
}
keyname = GetKeyName(buffer);
if (string.IsNullOrEmpty(keyname))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax(startposition));
}
buffer.Length = 0;
parserState = ParserState.KeyEnd;
goto case ParserState.KeyEnd;
case ParserState.KeyEnd:
if (Char.IsWhiteSpace(currentChar))
{
continue;
}
if ('\'' == currentChar)
{
parserState = ParserState.SingleQuoteValue;
continue;
}
if ('"' == currentChar)
{
parserState = ParserState.DoubleQuoteValue;
continue;
}
if (';' == currentChar)
{
goto ParserExit;
}
if ('\0' == currentChar)
{
goto ParserExit;
}
if (Char.IsControl(currentChar))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax(startposition));
}
parserState = ParserState.UnquotedValue;
break;
case ParserState.UnquotedValue: // "((?![\"'\\s])" + "([^;\\s\\p{Cc}]|\\s+[^;\\s\\p{Cc}])*" + "(?<![\"']))"
if (Char.IsWhiteSpace(currentChar))
{
break;
}
if (Char.IsControl(currentChar) ||
';' == currentChar)
{
goto ParserExit;
}
break;
case ParserState.DoubleQuoteValue: // "(\"([^\"\u0000]|\"\")*\")"
if ('"' == currentChar)
{
parserState = ParserState.DoubleQuoteValueQuote;
continue;
}
if ('\0' == currentChar)
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax(startposition));
}
break;
case ParserState.DoubleQuoteValueQuote:
if ('"' == currentChar)
{
parserState = ParserState.DoubleQuoteValue;
break;
}
keyvalue = GetKeyValue(buffer, false);
parserState = ParserState.QuotedValueEnd;
goto case ParserState.QuotedValueEnd;
case ParserState.SingleQuoteValue: // "('([^'\u0000]|'')*')"
if ('\'' == currentChar)
{
parserState = ParserState.SingleQuoteValueQuote;
continue;
}
if ('\0' == currentChar)
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax(startposition));
}
break;
case ParserState.SingleQuoteValueQuote:
if ('\'' == currentChar)
{
parserState = ParserState.SingleQuoteValue;
break;
}
keyvalue = GetKeyValue(buffer, false);
parserState = ParserState.QuotedValueEnd;
goto case ParserState.QuotedValueEnd;
case ParserState.QuotedValueEnd:
if (Char.IsWhiteSpace(currentChar))
{
continue;
}
if (';' == currentChar)
{
goto ParserExit;
}
if ('\0' == currentChar)
{
parserState = ParserState.NullTermination;
continue;
}
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax(startposition)); // unbalanced single quote
case ParserState.NullTermination: // [\\s;\u0000]*
if ('\0' == currentChar)
{
continue;
}
if (Char.IsWhiteSpace(currentChar))
{
continue;
}
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax(currentPosition));
default:
throw new InvalidOperationException(
Strings.ADP_InternalProviderError((int)EntityUtil.InternalErrorCode.InvalidParserState1));
}
buffer.Append(currentChar);
}
ParserExit:
switch (parserState)
{
case ParserState.Key:
case ParserState.DoubleQuoteValue:
case ParserState.SingleQuoteValue:
// keyword not found/unbalanced double/single quote
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax(startposition));
case ParserState.KeyEqual:
// equal sign at end of line
keyname = GetKeyName(buffer);
if (string.IsNullOrEmpty(keyname))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax(startposition));
}
break;
case ParserState.UnquotedValue:
// unquoted value at end of line
keyvalue = GetKeyValue(buffer, true);
var tmpChar = keyvalue[keyvalue.Length - 1];
if (('\'' == tmpChar) ||
('"' == tmpChar))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax(startposition));
// unquoted value must not end in quote
}
break;
case ParserState.DoubleQuoteValueQuote:
case ParserState.SingleQuoteValueQuote:
case ParserState.QuotedValueEnd:
// quoted value at end of line
keyvalue = GetKeyValue(buffer, false);
break;
case ParserState.NothingYet:
case ParserState.KeyEnd:
case ParserState.NullTermination:
// do nothing
break;
default:
throw new InvalidOperationException(
Strings.ADP_InternalProviderError((int)EntityUtil.InternalErrorCode.InvalidParserState2));
}
if ((';' == currentChar) &&
(currentPosition < connectionString.Length))
{
currentPosition++;
}
return(currentPosition);
}
private static int GetKeyValuePair(
string connectionString,
int currentPosition,
StringBuilder buffer,
out string keyname,
out string keyvalue)
{
int num = currentPosition;
buffer.Length = 0;
keyname = (string)null;
keyvalue = (string)null;
char minValue = char.MinValue;
DbConnectionOptions.ParserState parserState = DbConnectionOptions.ParserState.NothingYet;
for (int length = connectionString.Length; currentPosition < length; ++currentPosition)
{
minValue = connectionString[currentPosition];
switch (parserState)
{
case DbConnectionOptions.ParserState.NothingYet:
if (';' != minValue && !char.IsWhiteSpace(minValue))
{
if (minValue == char.MinValue)
{
parserState = DbConnectionOptions.ParserState.NullTermination;
continue;
}
if (char.IsControl(minValue))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax((object)num));
}
num = currentPosition;
if ('=' != minValue)
{
parserState = DbConnectionOptions.ParserState.Key;
break;
}
parserState = DbConnectionOptions.ParserState.KeyEqual;
continue;
}
continue;
case DbConnectionOptions.ParserState.Key:
if ('=' == minValue)
{
parserState = DbConnectionOptions.ParserState.KeyEqual;
continue;
}
if (!char.IsWhiteSpace(minValue) && char.IsControl(minValue))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax((object)num));
}
break;
case DbConnectionOptions.ParserState.KeyEqual:
if ('=' == minValue)
{
parserState = DbConnectionOptions.ParserState.Key;
break;
}
keyname = DbConnectionOptions.GetKeyName(buffer);
if (string.IsNullOrEmpty(keyname))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax((object)num));
}
buffer.Length = 0;
parserState = DbConnectionOptions.ParserState.KeyEnd;
goto case DbConnectionOptions.ParserState.KeyEnd;
case DbConnectionOptions.ParserState.KeyEnd:
if (!char.IsWhiteSpace(minValue))
{
if ('\'' == minValue)
{
parserState = DbConnectionOptions.ParserState.SingleQuoteValue;
continue;
}
if ('"' == minValue)
{
parserState = DbConnectionOptions.ParserState.DoubleQuoteValue;
continue;
}
if (';' != minValue && minValue != char.MinValue)
{
if (char.IsControl(minValue))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax((object)num));
}
parserState = DbConnectionOptions.ParserState.UnquotedValue;
break;
}
goto label_54;
}
else
{
continue;
}
case DbConnectionOptions.ParserState.UnquotedValue:
if (char.IsWhiteSpace(minValue) || !char.IsControl(minValue) && ';' != minValue)
{
break;
}
goto label_54;
case DbConnectionOptions.ParserState.DoubleQuoteValue:
if ('"' == minValue)
{
parserState = DbConnectionOptions.ParserState.DoubleQuoteValueQuote;
continue;
}
if (minValue == char.MinValue)
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax((object)num));
}
break;
case DbConnectionOptions.ParserState.DoubleQuoteValueQuote:
if ('"' == minValue)
{
parserState = DbConnectionOptions.ParserState.DoubleQuoteValue;
break;
}
keyvalue = DbConnectionOptions.GetKeyValue(buffer, false);
parserState = DbConnectionOptions.ParserState.QuotedValueEnd;
goto case DbConnectionOptions.ParserState.QuotedValueEnd;
case DbConnectionOptions.ParserState.SingleQuoteValue:
if ('\'' == minValue)
{
parserState = DbConnectionOptions.ParserState.SingleQuoteValueQuote;
continue;
}
if (minValue == char.MinValue)
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax((object)num));
}
break;
case DbConnectionOptions.ParserState.SingleQuoteValueQuote:
if ('\'' == minValue)
{
parserState = DbConnectionOptions.ParserState.SingleQuoteValue;
break;
}
keyvalue = DbConnectionOptions.GetKeyValue(buffer, false);
parserState = DbConnectionOptions.ParserState.QuotedValueEnd;
goto case DbConnectionOptions.ParserState.QuotedValueEnd;
case DbConnectionOptions.ParserState.QuotedValueEnd:
if (!char.IsWhiteSpace(minValue))
{
if (';' != minValue)
{
if (minValue != char.MinValue)
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax((object)num));
}
parserState = DbConnectionOptions.ParserState.NullTermination;
continue;
}
goto label_54;
}
else
{
continue;
}
case DbConnectionOptions.ParserState.NullTermination:
if (minValue != char.MinValue && !char.IsWhiteSpace(minValue))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax((object)currentPosition));
}
continue;
default:
throw new InvalidOperationException(Strings.ADP_InternalProviderError((object)1015));
}
buffer.Append(minValue);
}
label_54:
switch (parserState)
{
case DbConnectionOptions.ParserState.NothingYet:
case DbConnectionOptions.ParserState.KeyEnd:
case DbConnectionOptions.ParserState.NullTermination:
if (';' == minValue && currentPosition < connectionString.Length)
{
++currentPosition;
}
return(currentPosition);
case DbConnectionOptions.ParserState.Key:
case DbConnectionOptions.ParserState.DoubleQuoteValue:
case DbConnectionOptions.ParserState.SingleQuoteValue:
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax((object)num));
case DbConnectionOptions.ParserState.KeyEqual:
keyname = DbConnectionOptions.GetKeyName(buffer);
if (string.IsNullOrEmpty(keyname))
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax((object)num));
}
goto case DbConnectionOptions.ParserState.NothingYet;
case DbConnectionOptions.ParserState.UnquotedValue:
keyvalue = DbConnectionOptions.GetKeyValue(buffer, true);
char ch = keyvalue[keyvalue.Length - 1];
if ('\'' == ch || '"' == ch)
{
throw new ArgumentException(Strings.ADP_ConnectionStringSyntax((object)num));
}
goto case DbConnectionOptions.ParserState.NothingYet;
case DbConnectionOptions.ParserState.DoubleQuoteValueQuote:
case DbConnectionOptions.ParserState.SingleQuoteValueQuote:
case DbConnectionOptions.ParserState.QuotedValueEnd:
keyvalue = DbConnectionOptions.GetKeyValue(buffer, false);
goto case DbConnectionOptions.ParserState.NothingYet;
default:
throw new InvalidOperationException(Strings.ADP_InternalProviderError((object)1016));
}
}
