FlashFill Command Line

FlashFillCmdLine.cs

using System;
using System.Collections.Generic;
using Microsoft.ProgramSynthesis.Transformation.Text;
using Microsoft.ProgramSynthesis.Transformation.Text.Semantics;
using Microsoft.ProgramSynthesis.Wrangling.Constraints;

namespace FlashFillCmdLine
{
    class FlashFillCmdLine
    {
        static void Main(string[] args)
        {
            List<Constraint<IRow, object>> constraints = new List<Constraint<IRow, object>>();
            string line;
            Program program = null;
            while ((line = readLine("from: ")) != null)
            {

                string expected = readLine("to  : ");
                if (program != null) {
                    string output = program.Run(new InputRow(line)) as string;
                    if (expected==output)
                    {
                        Console.WriteLine("Done learning!");
                        break;
                    } else
                    {
                        Console.WriteLine("Predicted wrong: " + output);
                        Console.WriteLine("Continue learning!");
                    }
                }
                constraints.Add(new Example(new InputRow(line), expected));
                program = Learner.Instance.Learn(constraints);
            }
            List<string> outputs = new List<string>();
            while ((line = readLine("from: ")) != null)
            {
                string output = program.Run(new InputRow(line)) as string;
                Console.WriteLine("to  : "+output);
                outputs.Add(output);
            }
            Console.WriteLine("");
            Console.WriteLine("# All Outputs #");
            foreach (string output in outputs)
            {
                Console.WriteLine(output);
            }
        }
        private static string readLine(string msg)
        {
            Console.Write(msg);
            return Console.ReadLine();
        }
        private static bool yes()
        {
            string line = readLine("ok? [y/N] ");
            return line != null && line.StartsWith("y", StringComparison.CurrentCulture);
        }
    }
}