2 * This file is part of lanterna (http://code.google.com/p/lanterna/).
4 * lanterna is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 * Copyright (C) 2010-2015 Martin
19 package com
.googlecode
.lanterna
.input
;
21 import java
.util
.List
;
24 * Character pattern that matches characters pressed while CTRL key is held down
26 * @author Martin, Andreas
28 public class CtrlAndCharacterPattern
implements CharacterPattern
{
30 public Matching
match(List
<Character
> seq
) {
31 int size
= seq
.size(); char ch
= seq
.get(0);
36 // Control-chars: exclude lf,cr,Tab,Esc(^[), but still include ^\, ^], ^^ and ^_
39 case '\n': case '\r': case '\t':
40 case KeyDecodingProfile
.ESC_CODE
: return null; // nope
41 case 0: /* ^@ */ ctrlCode
= ' '; break;
42 case 28: /* ^\ */ ctrlCode
= '\\'; break;
43 case 29: /* ^] */ ctrlCode
= ']'; break;
44 case 30: /* ^^ */ ctrlCode
= '^'; break;
45 case 31: /* ^_ */ ctrlCode
= '_'; break;
46 default: ctrlCode
= (char)('a' - 1 + ch
);
48 KeyStroke ks
= new KeyStroke( ctrlCode
, true, false);
49 return new Matching( ks
); // yep