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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| /*----------------------------------------------------------------------------------------- | ||
| C#Prolog -- Copyright (C) 2007-2014 John Pool -- j.pool@ision.nl | ||
| This library is free software; you can redistribute it and/or modify it under the terms of | ||
| the GNU General Public License as published by the Free Software Foundation; either version | ||
| 2 of the License, or any later version. | ||
| This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; | ||
| without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
| See the GNU General Public License for details, or enter 'license.' at the command prompt. | ||
| -------------------------------------------------------------------------------------------*/ | ||
|
|
||
| using System; | ||
| using System.Text; | ||
| using System.Runtime.InteropServices; | ||
|
|
||
| namespace Prolog | ||
| { | ||
| class PrologParser | ||
| { | ||
| [STAThread] | ||
| public static void Main (string [] args) | ||
| { | ||
| PrologEngine e = null; | ||
|
|
||
| try | ||
| { | ||
| e = new PrologEngine (new DosIO ()); | ||
|
|
||
| // ProcessArgs -- for batch processing. Can be left out if not used | ||
| //if (e.ProcessArgs (args, false)) return; | ||
|
|
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| SetPreferredConsoleProperties (e); | ||
| Console.Title = "C#Prolog command window"; | ||
| Console.WriteLine (PrologEngine.IntroText); | ||
| Console.WriteLine ("\r\n--- Enter !! for command history, help for a list of all commands"); | ||
|
|
||
| //if (Engine.ConfigSettings.InitialConsultFile != null) // set in CSProlog.exe.config | ||
| // e.Consult (Engine.ConfigSettings.InitialConsultFile); // any additional initialisations | ||
|
|
||
| while (!e.Halted) | ||
| { | ||
| Console.Write (e.Prompt); | ||
| e.Query = ReadQuery (); | ||
|
|
||
| // Use e.GetFirstSolution instead of the loop below if you want the first solution only. | ||
| //Console.Write (e.GetFirstSolution (e.Query)); | ||
|
|
||
| foreach (PrologEngine.ISolution s in e.SolutionIterator) | ||
| { | ||
| // In order to get the individual variables: | ||
| //foreach (Engine.IVarValue varValue in s.VarValuesIterator) | ||
| // { Console.WriteLine (varValue.Value.To<int> ()); } // or ToString () etc. | ||
| Console.Write (s); | ||
|
|
||
| if (s.IsLast || !UserWantsMore ()) break; | ||
| } | ||
|
|
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| Console.WriteLine (); | ||
| } | ||
| } | ||
| catch (Exception x) | ||
| { | ||
| Console.WriteLine ("Error while initializing Prolog Engine. Message was:\r\n{0}", | ||
| x.GetBaseException ().Message + Environment.NewLine + x.StackTrace); | ||
| Console.ReadLine (); | ||
| } | ||
| finally | ||
| { | ||
| if (e != null) e.PersistCommandHistory (); // cf. CSProlog.exe.config | ||
| } | ||
| } | ||
|
|
||
|
|
||
| #region Console I/O | ||
| static void SetPreferredConsoleProperties (PrologEngine e) | ||
| { | ||
| Console.ForegroundColor = ConsoleColor.DarkBlue; | ||
| Console.BackgroundColor = ConsoleColor.White; | ||
| Console.Clear (); // applies the background color to the *entire* window background | ||
|
|
||
| if (System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) | ||
| { | ||
| try{Console.WindowWidth = 140;}catch{ } | ||
| try{Console.WindowHeight = 60;}catch{ } | ||
| try{Console.BufferWidth = 140;}catch{ } | ||
| try{Console.BufferHeight = 3000;}catch{ } | ||
| try{Console.WindowTop = 0;}catch{ } | ||
| try{Console.WindowLeft = 0;}catch{ } | ||
| } | ||
|
|
||
| // TODO: The following line is supposed to prevent ^C from exiting the application - it doesn't work for linux | ||
| Console.CancelKeyPress += new ConsoleCancelEventHandler (e.Console_CancelKeyPress); | ||
| } | ||
|
|
||
| static string ReadQuery () | ||
| { | ||
| StringBuilder sb = new StringBuilder (); | ||
| string line; | ||
|
|
||
| while (true) | ||
| { | ||
| if ((line = System.ReadLine.Read()) == null) | ||
| { | ||
| sb.Length = 0; | ||
|
|
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| break; | ||
| } | ||
| else | ||
| { | ||
| sb.AppendLine (line); | ||
|
|
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| if (line.EndsWith ("/") || line.StartsWith ("!") || line.EndsWith (".")) | ||
| break; | ||
|
|
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| Console.Write ("| "); | ||
| } | ||
| } | ||
|
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| ReadLine.AddHistory(sb.ToString().TrimEnd( Environment.NewLine.ToCharArray())); | ||
| return sb.ToString (); | ||
| } | ||
|
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|
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| static bool UserWantsMore () | ||
| { | ||
| Console.Write (" more? (y/n) "); | ||
| char response = Console.ReadKey ().KeyChar; | ||
|
|
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| if (response == 'y' || response == ';') | ||
| { | ||
| Console.WriteLine (); | ||
|
|
||
| return true; | ||
| } | ||
|
|
||
| return false; | ||
| } | ||
| #endregion | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,15 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>netcoreapp2.0</TargetFramework> | ||
| <StartupObject> | ||
| </StartupObject> | ||
| </PropertyGroup> | ||
| <ItemGroup> | ||
| <ProjectReference Include="..\CSProlog\CSProlog.Core.csproj" /> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <PackageReference Include="Microsoft.DotNet.Analyzers.Compatibility" Version="0.2.12-alpha" /> | ||
| <PackageReference Include="ReadLine" Version="2.0.0" /> | ||
| </ItemGroup> | ||
| </Project> |