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Console.d

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00001 /*******************************************************************************
00002 
00003         @file Console.d
00004         
00005         Copyright (c) 2004 Kris Bell
00006         
00007         This software is provided 'as-is', without any express or implied
00008         warranty. In no event will the authors be held liable for damages
00009         of any kind arising from the use of this software.
00010         
00011         Permission is hereby granted to anyone to use this software for any 
00012         purpose, including commercial applications, and to alter it and/or 
00013         redistribute it freely, subject to the following restrictions:
00014         
00015         1. The origin of this software must not be misrepresented; you must 
00016            not claim that you wrote the original software. If you use this 
00017            software in a product, an acknowledgment within documentation of 
00018            said product would be appreciated but is not required.
00019 
00020         2. Altered source versions must be plainly marked as such, and must 
00021            not be misrepresented as being the original software.
00022 
00023         3. This notice may not be removed or altered from any distribution
00024            of the source.
00025 
00026         4. Derivative works are permitted, but they must carry this notice
00027            in full and credit the original source.
00028 
00029 
00030                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
00031 
00032        
00033         @version        Initial version, Feb 2005      
00034         @author         Kris
00035 
00036 
00037 *******************************************************************************/
00038 
00039 module mango.io.Console;
00040 
00041 private import  mango.io.ConduitStyle,
00042                 mango.io.DeviceConduit;
00043 
00044 /*******************************************************************************
00045 
00046         low level console IO support. 
00047         
00048         Redirecting the standard IO handles (via a shell) operates as one 
00049         would expect.
00050 
00051 *******************************************************************************/
00052 
00053 static _ConsoleInput    Cin;
00054 static _ConsoleOutput   Cout, 
00055                         Cerr;
00056 
00057 private 
00058 {
00059         struct _ConsoleInput
00060         {
00061                 ConsoleConduit conduit;
00062 
00063                 int opCall(void[] x)
00064                 {
00065                         return conduit.read (x);
00066                 }
00067         }
00068 
00069         struct _ConsoleOutput
00070         {
00071                 ConsoleConduit conduit;
00072 
00073                 int opCall(void[] x)
00074                 {
00075                         return conduit.write (x);
00076                 }
00077         }
00078 
00079         static this ()
00080         {
00081                 Cin.conduit = new ConsoleConduit (new FileDevice (0, ConduitStyle.Access.Read));
00082                 Cout.conduit = new ConsoleConduit (new FileDevice (1, ConduitStyle.Access.Write));
00083                 Cerr.conduit = new ConsoleConduit (new FileDevice (2, ConduitStyle.Access.Write));
00084         }
00085 }

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