110 lines
3.7 KiB
C#
110 lines
3.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Text;
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using Upsilon;
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using Upsilon.Evaluator;
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using Upsilon.StandardLibraries;
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namespace Ycicle
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{
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internal static class Program
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{
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private static void Main()
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{
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Console.WriteLine("Upsilon REPL");
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Script script = null;
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var (evaluationScope, boundScope) = StandardLibrary.Create();
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while (true)
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{
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Console.Write("» ");
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var input = Console.ReadLine();
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if (input == "exit") return;
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script = script == null
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? new Script(input, boundScope, evaluationScope)
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: Script.ContinueWith(script, input);
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if (script.Diagnostics.Messages.Count > 0)
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{
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Console.ForegroundColor = ConsoleColor.Red;
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Console.WriteLine("Errors were found during parsing");
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foreach (var diagnosticsMessage in script.Diagnostics.Messages)
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{
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LogError(diagnosticsMessage);
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}
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Console.ResetColor();
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continue;
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}
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//Console.WriteLine(script.PrettyPrintSyntaxTree());
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var evaluate = script.Evaluate();
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if (script.Diagnostics.Messages.Count > 0)
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{
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Console.ForegroundColor = ConsoleColor.Red;
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Console.WriteLine("Errors were found during evaluating");
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foreach (var diagnosticsMessage in script.Diagnostics.Messages)
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{
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LogError(diagnosticsMessage);
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}
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Console.ResetColor();
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}
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else
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{
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if (evaluate == null)
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continue;
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Console.ForegroundColor = ConsoleColor.Cyan;
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Console.WriteLine(ParseEvaluated(evaluate));
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Console.ResetColor();
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}
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}
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}
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private static void LogError(DiagnosticsMessage message)
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{
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Console.ForegroundColor = ConsoleColor.Red;
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Console.WriteLine(message.Message);
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Console.ForegroundColor = ConsoleColor.Gray;
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Console.Write(message.GetDiagnosticPosition() + " ");
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Console.Write(message.LineBeforeError());
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Console.ForegroundColor = ConsoleColor.Red;
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Console.Write(message.AtError());
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Console.ForegroundColor = ConsoleColor.Gray;
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Console.Write(message.LineAfterError());
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Console.WriteLine();
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}
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private static string ParseEvaluated(object o, int jumps = 0)
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{
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var sb = new StringBuilder();
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if (o is Dictionary<string, object> dic)
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{
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for (var i = 0; i < jumps; i++) sb.Append(" ");
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sb.Append("{\n");
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foreach (var (key, value) in dic)
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{
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for (var i = 0; i < jumps; i++) sb.Append(" ");
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sb.Append(" {");
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sb.Append("\"");
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sb.Append(key);
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sb.Append("\": ");
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sb.Append(ParseEvaluated(value, jumps + 1));
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sb.Append(" }");
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sb.Append(",\n");
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}
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for (var i = 0; i < jumps; i++) sb.Append(" ");
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sb.Append("}\n");
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}
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else
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{
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sb.Append(o.ToString());
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}
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return sb.ToString();
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}
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}
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} |