/* Function: FromParameters
* Creates a UsingString from the passed parameters.
*/
static public UsingString FromParameters(UsingType type, SymbolString prefixToAdd, SymbolString prefixToRemove = default(SymbolString))
{
StringBuilder stringBuilder = new System.Text.StringBuilder(prefixToAdd.ToString().Length + 1);
if (type == UsingType.AddPrefix)
{
stringBuilder.Append('A');
if (prefixToAdd == null)
{
throw new InvalidOperationException();
}
stringBuilder.Append(prefixToAdd.ToString());
}
else if (type == UsingType.ReplacePrefix)
{
stringBuilder.Append('R');
if (prefixToAdd == null || prefixToRemove == null)
{
throw new InvalidOperationException();
}
stringBuilder.Append(prefixToRemove);
stringBuilder.Append(SeparatorChar);
stringBuilder.Append(prefixToAdd);
}
else
{
throw new InvalidOperationException();
}
return(new UsingString(stringBuilder.ToString()));
}
/* Function: FromParameters
* Creates a ClassString from the passed parameters.
*/
static public ClassString FromParameters(HierarchyType hierarchy, int languageID, bool caseSensitive, SymbolString symbol)
{
if (symbol == null)
{
throw new NullReferenceException();
}
// SymbolString plus hierarchy, language ID, and separator. It's almost definitely only going to use one char for the
// language ID, but getting room for a second one just to be certain isn't a big deal when we're already paying for the
// allocation.
StringBuilder stringBuilder = new System.Text.StringBuilder(symbol.ToString().Length + 4);
if (hierarchy == HierarchyType.Class)
{
if (caseSensitive)
{
stringBuilder.Append('C');
}
else
{
stringBuilder.Append('c');
}
}
else // (hierarchy == HierarchyType.Database)
{
if (caseSensitive)
{
stringBuilder.Append('D');
}
else
{
stringBuilder.Append('d');
}
}
do
{
int value = languageID & 0x0000003F;
if (value < 10)
{
stringBuilder.Append((char)('0' + value));
}
else if (value < 36)
{
stringBuilder.Append((char)('A' + (value - 10)));
}
else if (value < 62)
{
stringBuilder.Append((char)('a' + (value - 36)));
}
else if (value == 62)
{
stringBuilder.Append('!');
}
else // (value == 63)
{
stringBuilder.Append('@');
}
languageID >>= 6;
}while (languageID > 0);
stringBuilder.Append(SeparatorChar);
string symbolString = symbol.ToString();
stringBuilder.Append(symbolString);
string classString = stringBuilder.ToString();
string lookupKey;
if (caseSensitive)
{
lookupKey = classString;
}
else
{
stringBuilder.Remove(stringBuilder.Length - symbolString.Length, symbolString.Length);
stringBuilder.Append(symbolString.ToLower());
lookupKey = stringBuilder.ToString();
}
return(new ClassString(classString, lookupKey));
}
