<<>>
    <<GlassTTY.Mesa>>
        <<Copyright Ó 1992 by Xerox Corporation.  All rights reserved.>>
    <<Last Edited by: Spreitzer, March 11, 1985 11:45:00 pm PST>>

    DIRECTORY CharDisplays, DisplayControllers, IO, IOClasses, Process, Rope;

    GlassTTY: CEDAR PROGRAM
        IMPORTS DisplayControllers, IOClasses, Process

         = {OPEN DisplayControllers;

        glassTTY: ControlProgram;

        DefineGlassTTY: PROC = {
            glassTTY ¬ NewControlProgram[];
            AddInstruction[glassTTY, LIST["\015"], cr];
            AddInstruction[glassTTY, LIST["\012"], lf];
            AddInstruction[glassTTY, LIST["\010"], bs];
            };

        crlf: Action ¬ [CRLF];

        CRLF: PROC [dc: DisplayController, clientData: REF ANY] =
            {dc.cd.class.CursorMove[dc.cd, dc.cd.line+1, 0, FALSE]};

        cr: Action ¬ [CR];

        CR: PROC [dc: DisplayController, clientData: REF ANY] =
            {dc.cd.class.CursorMove[dc.cd, dc.cd.line, 0, FALSE]};

        lf: Action ¬ [LF];

        LF: PROC [dc: DisplayController, clientData: REF ANY] =
            {dc.cd.class.CursorMove[dc.cd, 1, 0, TRUE]};

        bs: Action ¬ [BS];

        BS: PROC [dc: DisplayController, clientData: REF ANY] =
            {dc.cd.class.CursorMove[dc.cd, 0, -1, TRUE]};

        ToSelf: PROC [dc: DisplayController] = TRUSTED {Process.Detach[FORK IOClasses.Copy[from: dc.fromDisplay, to: dc.toDisplay, 
        closeFrom: FALSE, closeTo: FALSE]]};


        }.