void PerformInputBoxReplacement(string line, string replacement, CommandArgument activeArgument)
{
//extend the argument accordingly
CommandArgument modifiedArgument = new CommandArgument(replacement);
string middle = modifiedArgument.Escape();
string left = line.Substring(0, activeArgument.Offset);
int rightOffset = activeArgument.Offset + activeArgument.Length();
string right = line.Substring(rightOffset);
string newLine = left + middle + right;
int newCursorOffset = activeArgument.Offset + replacement.Length;
//need to fix the cursor position, it should be at the end of the current argument
MainForm.InputBox.Text = newLine;
MainForm.InputBox.SelectionStart = newCursorOffset;
}
void ProcessLine(string line)
{
List<CommandArgument> tokens = new List<CommandArgument>();
string currentToken = "";
int currentTokenOffset = 0;
bool quoteMode = false;
char lastChar = '\x00';
ArgumentHasQuotes = false;
for(int i = 0; i < line.Length; i++)
{
char input = line[i];
bool wasQuote = i > 0 && lastChar == '"';
bool quoteError = !quoteMode && wasQuote;
switch (input)
{
case ' ':
if(quoteMode)
currentToken += input;
else
{
if(currentToken.Length > 0)
{
ProcessResult(currentToken, currentTokenOffset, tokens);
currentToken = "";
}
}
break;
case '"':
if (lastChar == '\\')
{
currentToken.Remove(currentToken.Length - 1);
currentToken += input;
break;
}
if (quoteError)
throw new ArgumentException("Encountered a quote right after a terminating quote");
quoteMode = !quoteMode;
if (quoteMode)
{
ArgumentHasQuotes = true;
currentTokenOffset = i;
}
break;
default:
if (quoteError)
throw new ArgumentException("Encountered a printable character after a terminating quote");
if(currentToken.Length == 0)
currentTokenOffset = i;
currentToken += input;
break;
}
lastChar = input;
}
if (quoteMode)
throw new ArgumentException("Missing quote");
if (currentToken.Length > 0)
ProcessResult(currentToken, currentTokenOffset, tokens);
Command = tokens[0];
Arguments = tokens.GetRange(1, tokens.Count - 1).ToArray();
}
void ProcessResult(string currentToken, int currentTokenOffset, List<CommandArgument> tokens)
{
CommandArgument newResult = new CommandArgument(currentToken, currentTokenOffset, ArgumentHasQuotes);
tokens.Add(newResult);
ArgumentHasQuotes = false;
}