Traductor de Pascal a C# Ejercicio C# - Curso de Programación C# (C Sharp)

// Importing necessary namespaces for basic operations
using System; // For basic Console operations
using System.IO; // For file handling
using System.Text.RegularExpressions; // For using regular expressions

public class PascalToCSharpTranslator
{
    // Method to translate Pascal code to C# code
    public static string TranslatePascalToCSharp(string pascalCode)
    {
        // Replacing "WriteLn" with "Console.WriteLine"
        pascalCode = pascalCode.Replace("WriteLn", "Console.WriteLine");

        // Replacing " = " with "=="
        pascalCode = pascalCode.Replace(" = ", "==");

        // Replacing " := " with "="
        pascalCode = pascalCode.Replace(" := ", "=");

        // Replacing single quotes with double quotes
        pascalCode = pascalCode.Replace("'", "\"");

        // Replacing "begin" with "{"
        pascalCode = pascalCode.Replace("begin", "{");

        // Replacing "end;" and "end." with "}"
        pascalCode = pascalCode.Replace("end;", "}");
        pascalCode = pascalCode.Replace("end.", "}");

        // Replacing "program x;" with "class x {"
        pascalCode = Regex.Replace(pascalCode, @"program\s+(\w+);", "class $1 {");

        // Replacing "readln(x)" with "x = Convert.ToInt32(Console.ReadLine())"
        pascalCode = Regex.Replace(pascalCode, @"readln\((\w+)\)", "$1 = Convert.ToInt32(Console.ReadLine())");

        // Replacing "var" and "x: integer" with "int x"
        pascalCode = Regex.Replace(pascalCode, @"var", "");
        pascalCode = Regex.Replace(pascalCode, @"(\w+):\s*integer", "int $1");

        // Formatting "for" loops to C# style
        pascalCode = Regex.Replace(pascalCode, @"for\s+(\w+)\s*:=\s*(\d+)\s+to\s*(\d+)\s*do", "for(int $1 = $2; $1 <= $3; $1++)");

        return pascalCode;
    }

    // Method to process the Pascal code file and generate the C# code file
    public static void ProcessFile(string inputFileName)
    {
        // Reading the Pascal code from the input file
        string pascalCode = File.ReadAllText(inputFileName);

        // Translating Pascal code to C#
        string cSharpCode = TranslatePascalToCSharp(pascalCode);

        // Creating the output file name by changing the extension from .pas to .cs
        string outputFileName = Path.ChangeExtension(inputFileName, ".cs");

        // Writing the translated C# code to the output file
        File.WriteAllText(outputFileName, cSharpCode);

        Console.WriteLine($"Translation complete. The C# code has been saved to {outputFileName}");
    }
}

class Program
{
    static void Main(string[] args)
    {
        // Asking user for the Pascal file name
        Console.Write("Enter the Pascal file name (with .pas extension): ");
        string inputFileName = Console.ReadLine();

        // Calling the ProcessFile method to handle the translation
        PascalToCSharpTranslator.ProcessFile(inputFileName);
    }
}