private static void PrintWelcomeMessage()
{
Console.WriteLine(AnsiUtils.Color(@" _____ ____ ___ _______ __ ", 202));
Console.WriteLine(AnsiUtils.Color(@" / ___/_/ / /_ / _ \/ __/ _ \/ / ", 167));
Console.WriteLine(AnsiUtils.Color(@"/ /__/_ . __/ / , _/ _// ___/ /__", 132));
Console.WriteLine(AnsiUtils.Color(@"\___/_ __/ /_/|_/___/_/ /____/", 97));
Console.WriteLine(AnsiUtils.Color(@" /_/_/", 62) + AnsiUtils.Color(@" read-eval-print-loop", 240));
Console.WriteLine("\nType /help for help\n");
}
private static void PrintCommands(IEnumerable <KeyValuePair <string, Tuple <string, Action> > > commands)
{
if (commands.Any())
{
Console.WriteLine();
foreach (var cmd in commands.OrderBy(c => c.Key))
{
Console.WriteLine(AnsiUtils.Color($"/{cmd.Key} -- {cmd.Value.Item1}", AnsiColor.Gray));
}
Console.WriteLine();
}
}
public string[] GetSuggestions(string text, int index)
{
string[] autocomplete = null;
if (!string.IsNullOrWhiteSpace(text))
{
Console.WriteLine();
if (text.StartsWith("/"))
{
string partialCommand = text.Substring(1);
var matches = Commands.Where(c => c.Key.StartsWith(partialCommand));
if (matches.Any())
{
PrintCommands(matches);
string longestCommonPrefix = Utils.GetLongestCommonPrefix(matches.Select(kv => kv.Key));
autocomplete = new [] { longestCommonPrefix.Substring(partialCommand.Length) };
}
}
if (autocomplete == null)
{
var options = scripting.CodeComplete(text);
autocomplete = new [] { options.Item2 };
if (options.Item1.Any())
{
Console.WriteLine();
foreach (string option in options.Item1)
{
Console.WriteLine(AnsiUtils.Color(option, AnsiColor.Gray));
}
Console.WriteLine();
}
}
Console.Write(Prompt + text);
}
return(autocomplete);
}
static void Main(string[] args)
{
// Command window on Windows has ANSI disabled by default
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
ConsoleUtils.EnableANSI();
}
PrintWelcomeMessage();
ReadLine.AutoCompletionHandler = new AutoCompletionHandler();
while (true)
{
string command = ReadLine.Read(Prompt);
if (command.StartsWith("/") && Commands.TryGetValue(command.Substring(1), out var cmd))
{
cmd.Item2();
}
else
{
ReadLine.AddHistory(command);
var result = scripting.Eval(command);
if (result.Result != null)
{
Console.WriteLine();
if (result.Status == ScriptingExecutionStatus.Error)
{
Console.WriteLine(AnsiUtils.Color(result.Result, AnsiColor.Red));
}
else
{
Console.WriteLine(AnsiUtils.Color(result.Result, AnsiColor.Green));
}
Console.WriteLine();
}
}
}
}
private static void PrintHelp()
{
PrintCommands(Commands);
Console.WriteLine(AnsiUtils.Color("Use Tab for code completion, and up-arrow to access previous commands", AnsiColor.Gray));
}