private void handleAutocomplete()
{
if (commandBuffer.Length == 0)
{
return;
}
List <string> possibleCommands = new List <string>();
int minMatchingChars = 0;
foreach (var commandPair in engineCommands)
{
var commandName = commandPair.Key;
if (commandName.StartsWith(commandBuffer))
{
minMatchingChars = Math.Min(minMatchingChars, commandName.Length - commandBuffer.Length);
possibleCommands.Add(commandName);
}
}
foreach (var commandPair in gameCommands)
{
var commandName = commandPair.Key;
if (commandName.StartsWith(commandBuffer))
{
minMatchingChars = Math.Min(minMatchingChars, commandName.Length - commandBuffer.Length);
possibleCommands.Add(commandName);
}
}
switch (possibleCommands.Count)
{
case 0:
Log(string.Format("no commands starting with '{0}'...", commandBuffer));
break;
case 1:
commandBuffer = possibleCommands[0];
break;
default:
var referenceCommand = possibleCommands[0];
bool breakLoop = false;
int charInd = 0;
while (charInd < referenceCommand.Length)
{
// check every other command to see how many of their letters match
var character = referenceCommand[charInd];
for (int commandInd = 1; commandInd < possibleCommands.Count && !breakLoop; commandInd++)
{
string command = possibleCommands[commandInd];
if (charInd >= command.Length || command[charInd] != character)
{
charInd--;
breakLoop = true;
}
}
if (!breakLoop && charInd < referenceCommand.Length - 1)
{
charInd++;
}
else
{
break;
}
}
if (charInd + 1 > commandBuffer.Length)
{
commandBuffer = referenceCommand.Substring(0, charInd + 1);
}
else
{
Log(string.Format("commands starting with '{0}': ", commandBuffer));
Log(ConsoleUtilities.BracketedList(possibleCommands));
}
break;
}
commandCursorIndex = commandBuffer.Length;
}
