public static JsonPalette Auto(ConsoleBrush defaultBrush)
{
string setting;
try
{
setting = Settings.Default[defaultBrush.Background + "Palette"];
}
catch (KeyNotFoundException)
{
setting = null;
}
if (string.IsNullOrEmpty(setting))
{
setting = Settings.BlackPalette;
defaultBrush = new ConsoleBrush(ConsoleColor.White, ConsoleColor.Black);
}
var palette = new JsonPalette(defaultBrush);
palette.ImportJson(setting);
return(palette);
}
static int Main(string[] args)
{
try
{
var defaultBrush = ConsoleBrush.Current;
var options = new ProgramOptions();
options.Help += delegate { Help(); Environment.Exit(0); };
options.Palette = JsonPalette.Auto(defaultBrush);
args = options.Parse(args);
var path = args.Length > 0 ? args[0] : "-";
try
{
try
{
PrettyColorPrint(path, Console.Out, options.Palette);
}
finally
{
//
// The location of this finally clause is significant
// and should not be merged with the outer catch
// block. The default brush needs to be restored
// in case an error message is about to be printed
// and the standard output and error point to the
// same console device.
//
defaultBrush.Apply();
}
}
catch (JsonException e)
{
//
// In case of JsonException, we don't display the
// base exception since the root cause would not provide
// line and position information and which JsonException
// does. For example, "Unterminated string" has the
// root case of FormatException, but which bubble as
// JsonException with line and position about where the
// error was found in the source.
//
Console.Error.WriteLine(e.Message);
Trace.WriteLine(e.ToString());
return(2);
}
return(0);
}
catch (Exception e)
{
Console.Error.WriteLine(e.GetBaseException().Message);
Trace.WriteLine(e.ToString());
return(1);
}
}
static void PrettyColorPrint(string path, TextWriter output, JsonPalette palette)
{
Debug.Assert(output != null);
using (var input = path.Equals("-") ? Console.In : new StreamReader(path))
using (var reader = new JsonTextReader(input))
using (var writer = new JsonTextWriter(output))
{
writer.PrettyPrint = true;
var colorWriter = new JsonColorWriter(writer, palette);
colorWriter.WriteFromReader(reader);
output.WriteLine();
}
}
private static void PrettyColorPrint(string path, TextWriter output, JsonPalette palette)
{
Debug.Assert(output != null);
using (TextReader input = path.Equals("-") ? Console.In : new StreamReader(path))
using (JsonTextReader reader = new JsonTextReader(input))
using (JsonTextWriter writer = new JsonTextWriter(output))
{
writer.PrettyPrint = true;
JsonColorWriter colorWriter = new JsonColorWriter(writer, palette);
colorWriter.WriteFromReader(reader);
output.WriteLine();
}
}
public static JsonPalette Auto(ConsoleBrush defaultBrush)
{
string setting;
try
{
setting = (string) Settings.Default[defaultBrush.Background + "Palette"];
}
catch (SettingsPropertyNotFoundException)
{
setting = null;
}
if (string.IsNullOrEmpty(setting))
{
setting = Settings.Default.BlackPalette;
defaultBrush = new ConsoleBrush(ConsoleColor.White, ConsoleColor.Black);
}
var palette = new JsonPalette(defaultBrush);
palette.ImportJson(setting);
return palette;
}
public JsonColorWriter(JsonWriter inner, JsonPalette palette)
{
this.inner = inner;
this.Palette = palette ?? JsonPalette.Auto();
}
public string[] Parse(string[] args)
{
Debug.Assert(args != null);
var inputs = new Queue <string>(args);
var anonymous = new Queue <string>(args.Length);
char?altNamedToken = null;
if (Path.DirectorySeparatorChar != '/')
{
altNamedToken = '/';
}
while (inputs.Count > 0)
{
var arg = DequeueSafely(inputs);
if (arg.Length > 1 && (arg[0] == '-' || (altNamedToken.HasValue && arg[0] == altNamedToken.Value)))
{
var parts = arg.Split(new[] { '=', ':' }, 2);
var name = parts[0].TrimStart(arg[0]);
if (name.Length == 0)
{
break;
}
var value = parts.Length > 1 ? parts[1] : string.Empty;
switch (name)
{
case "p":
case "palette":
{
if (value.Length == 0)
{
continue;
}
if (value[0] != '{')
{
value = "{" + value + "}";
}
Palette.ImportJson(value);
break;
}
case "m":
case "mono":
{
if (Convert.ToBoolean(Mask.EmptyString(value, Boolean.TrueString)))
{
Palette = new JsonPalette(ConsoleBrush.Current);
}
break;
}
case "?":
case "help":
{
if (Help != null)
{
Help(this, EventArgs.Empty);
}
break;
}
default:
{
throw new ApplicationException(string.Format("Unknown option '{0}'.", arg));
}
}
}
else
{
anonymous.Enqueue(arg);
}
}
args = anonymous.ToArray();
return(args);
}
public JsonColorWriter(JsonWriter inner, JsonPalette palette)
{
this.inner = inner;
this.Palette = palette ?? JsonPalette.Auto();
}
