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//------------------------------------------------------------------------------
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// This file is part of Toolkit for Conceptual Modeling (TCM).
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// (c) copyright 1996, Vrije Universiteit Amsterdam.
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// Author: Frank Dehne (frank@cs.vu.nl).
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// TCM is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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// TCM is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with TCM; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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//-----------------------------------------------------------------------------
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/// definitions of various character codes.
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/*@Doc: {\large {\bf scope:} global} */
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/// definitions of character codes of non-printable ascii chars.
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static const int BACKSPACE;
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static const int VERTICAL_TAB;
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static const int ESCAPE;
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static const int DELETE;
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static const int CTRL_B;
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static const int CTRL_E;
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/// definitions of character codes of special keys (non-ascii).
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static const int HOME;
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static const int LEFT;
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static const int RIGHT;
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static const int DOWN;
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static const int PAGE_UP;
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static const int PAGE_DOWN;
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static const int INSERT;
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static bool ArrowKey(int key) {
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return (key==UP||key==RIGHT||key==LEFT||key==DOWN);
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static bool EditKey(int key) {
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return (ArrowKey(key)||key==INSERT||key==DELETE||
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key==HOME||key==END||key==PAGE_UP||key==PAGE_DOWN||