private static string buildMessage(TextBuffer textBuffer, string errorDescription, bool undoLastRead)
{
if (undoLastRead)
textBuffer.UndoRead();
WordToken wordToken = TokenReader.ReadWordToken(textBuffer);
int arrowsIndex = textBuffer.PreviousIndex + textBuffer.LastRead.Length - wordToken.Name.Length;
string arrowsLine = Regex.Replace(textBuffer.Text.Substring(0, arrowsIndex), @"\S", " ", RegexOptions.Singleline);
return string.Format("{0}\n{1}\n{2}", errorDescription, textBuffer.Text, arrowsLine + new string('^', wordToken.Name.Length));
}
public override Token ReadToken(TextBuffer textBuffer)
{
string firstMatchGroup = GetFirstMatchGroup(textBuffer);
if (firstMatchGroup != null)
{
int value;
if (int.TryParse(firstMatchGroup, out value))
return new SignedIntegerToken(value);
else
textBuffer.UndoRead();
}
return null;
}
public override Token ReadToken(TextBuffer textBuffer)
{
string firstMatchGroup = GetFirstMatchGroup(textBuffer);
if (firstMatchGroup != null)
{
int value;
if (int.TryParse(firstMatchGroup, out value))
{
return(new SignedIntegerToken(value));
}
else
{
textBuffer.UndoRead();
}
}
return(null);
}
