Upsilon/Yc/Program.cs

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using System;
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using System.Collections.Generic;
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using Upsilon;
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using Upsilon.Evaluator;
namespace Yc
{
static class Program
{
static void Main(string[] args)
{
Console.WriteLine("Upsilon REPL");
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Dictionary<string, object> variables = new Dictionary<string, object>();
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while (true)
{
Console.Write("» ");
var input = Console.ReadLine();
if (input == "exit")
{
return;
}
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var parsed = new Script(input, variables);
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if (parsed.Diagnostics.Messages.Count > 0)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Errors were found during parsing");
foreach (var diagnosticsMessage in parsed.Diagnostics.Messages)
{
LogError(diagnosticsMessage);
}
Console.ResetColor();
continue;
}
var evaluate = parsed.Evaluate();
if (parsed.Diagnostics.Messages.Count > 0)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Errors were found during evaluating");
foreach (var diagnosticsMessage in parsed.Diagnostics.Messages)
{
LogError(diagnosticsMessage);
}
Console.ResetColor();
}
else
{
Console.WriteLine(evaluate);
variables = parsed.Variables;
}
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}
}
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public static void LogError(DiagnosticsMessage message)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(message.Message);
Console.ForegroundColor = ConsoleColor.Gray;
Console.Write(message.BeforeError());
Console.ForegroundColor = ConsoleColor.Red;
Console.Write(message.AtError());
Console.ForegroundColor = ConsoleColor.Gray;
Console.Write(message.AfterError());
Console.WriteLine();
}
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}
}