public static void Display(this IInteractivity interactivity, ParseError error, String source)
{
var start = error.Start.Index - 1;
var end = error.End.Index - 1;
var lines = source.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
source = String.Join(" ", lines).Replace('\t', ' ');
if (end == start)
{
end++;
}
var range = 48;
var middle = (end + start) / 2;
var ss = Math.Min(source.Length, Math.Max(middle - range / 2, 0));
var se = Math.Min(Math.Max(0, middle + range / 2), source.Length);
var snippet = source.Substring(ss, se - ss);
interactivity.Error(snippet);
interactivity.Error(Environment.NewLine);
interactivity.Error(new String(' ', Math.Max(0, start - ss)));
interactivity.Error(new String('^', Math.Max(0, end - start)));
interactivity.Error(Environment.NewLine);
interactivity.Display(error);
}
public void Run(String file)
{
var import = _engine.Globals["import"] as Function;
try
{
import.Invoke(new[] { file });
}
catch (ParseException ex)
{
var content = File.ReadAllText(file);
_interactivity.Display(ex.Error, content);
}
catch (Exception ex)
{
_interactivity.Error(ex.Message);
}
}