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source: ogBrowser-Git/qtermwidget/lib/Vt102Emulation.cpp @ c0cec9d

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Last change on this file since c0cec9d was fedf2a2, checked in by Vadim Troshchinskiy Shmelev <vtroshchinskiy@…>, 18 months ago
Update Qtermwidget to Qt6 version Remove build files
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1	/*
2	This file is part of Konsole, an X terminal.
3
4	Copyright 2007-2008 by Robert Knight <robert.knight@gmail.com>
5	Copyright 1997,1998 by Lars Doelle <lars.doelle@on-line.de>
6
7	This program is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or
10	(at your option) any later version.
11
12	This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.
16
17	You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software
19	Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20	02110-1301 USA.
21	*/
22
23	// Own
24	#include "Vt102Emulation.h"
25	#include "tools.h"
26
27	// XKB
28	//#include <config-konsole.h>
29
30	// this allows konsole to be compiled without XKB and XTEST extensions
31	// even though it might be available on a particular system.
32	#if defined(AVOID_XKB)
33	#undef HAVE_XKB
34	#endif
35
36	#if defined(HAVE_XKB)
37	void scrolllock_set_off();
38	void scrolllock_set_on();
39	#endif
40
41	// Standard
42	#include <cstdio>
43	#include <unistd.h>
44
45	// Qt
46	#include <QEvent>
47	#include <QKeyEvent>
48	#if QT_VERSION >= 0x060000
49	#include <QByteArrayView>
50	#include <QtCore5Compat/QTextCodec>
51	#else
52	#include <QByteRef>
53	#endif
54	#include <QDebug>
55
56	// KDE
57	//#include <kdebug.h>
58	//#include <klocale.h>
59
60	// Konsole
61	#include "KeyboardTranslator.h"
62	#include "Screen.h"
63
64
65	using namespace Konsole;
66
67	Vt102Emulation::Vt102Emulation()
68	: Emulation(),
69	prevCC(0),
70	_titleUpdateTimer(new QTimer(this)),
71	_reportFocusEvents(false)
72	{
73	_titleUpdateTimer->setSingleShot(true);
74	QObject::connect(_titleUpdateTimer , SIGNAL(timeout()) , this , SLOT(updateTitle()));
75
76	initTokenizer();
77	reset();
78	}
79
80	Vt102Emulation::~Vt102Emulation()
81	{}
82
83	void Vt102Emulation::clearEntireScreen()
84	{
85	_currentScreen->clearEntireScreen();
86	bufferedUpdate();
87	}
88
89	void Vt102Emulation::reset()
90	{
91	resetTokenizer();
92	resetModes();
93	resetCharset(0);
94	_screen[0]->reset();
95	resetCharset(1);
96	_screen[1]->reset();
97	setCodec(LocaleCodec);
98
99	bufferedUpdate();
100	}
101
102	/* ------------------------------------------------------------------------- */
103	/* */
104	/* Processing the incoming byte stream */
105	/* */
106	/* ------------------------------------------------------------------------- */
107
108	/* Incoming Bytes Event pipeline
109
110	This section deals with decoding the incoming character stream.
111	Decoding means here, that the stream is first separated into `tokens'
112	which are then mapped to a `meaning' provided as operations by the
113	`Screen' class or by the emulation class itself.
114
115	The pipeline proceeds as follows:
116
117	- Tokenizing the ESC codes (onReceiveChar)
118	- VT100 code page translation of plain characters (applyCharset)
119	- Interpretation of ESC codes (processToken)
120
121	The escape codes and their meaning are described in the
122	technical reference of this program.
123	*/
124
125	// Tokens ------------------------------------------------------------------ --
126
127	/*
128	Since the tokens are the central notion if this section, we've put them
129	in front. They provide the syntactical elements used to represent the
130	terminals operations as byte sequences.
131
132	They are encodes here into a single machine word, so that we can later
133	switch over them easily. Depending on the token itself, additional
134	argument variables are filled with parameter values.
135
136	The tokens are defined below:
137
138	- CHR - Printable characters (32..255 but DEL (=127))
139	- CTL - Control characters (0..31 but ESC (= 27), DEL)
140	- ESC - Escape codes of the form <ESC><CHR but `[]()+*#'>
141	- ESC_DE - Escape codes of the form <ESC><any of `()+*#%'> C
142	- CSI_PN - Escape codes of the form <ESC>'[' {Pn} ';' {Pn} C
143	- CSI_PS - Escape codes of the form <ESC>'[' {Pn} ';' ... C
144	- CSI_PS_SP - Escape codes of the form <ESC>'[' {Pn} ';' ... {Space} C
145	- CSI_PR - Escape codes of the form <ESC>'[' '?' {Pn} ';' ... C
146	- CSI_PE - Escape codes of the form <ESC>'[' '!' {Pn} ';' ... C
147	- VT52 - VT52 escape codes
148	- <ESC><Chr>
149	- <ESC>'Y'{Pc}{Pc}
150	- XTE_HA - Xterm window/terminal attribute commands
151	of the form <ESC>`]' {Pn} `;' {Text} <BEL>
152	(Note that these are handled differently to the other formats)
153
154	The last two forms allow list of arguments. Since the elements of
155	the lists are treated individually the same way, they are passed
156	as individual tokens to the interpretation. Further, because the
157	meaning of the parameters are names (although represented as numbers),
158	they are includes within the token ('N').
159
160	*/
161
162	#define TY_CONSTRUCT(T,A,N) ( ((((int)N) & 0xffff) << 16) \| ((((int)A) & 0xff) << 8) \| (((int)T) & 0xff) )
163
164	#define TY_CHR( ) TY_CONSTRUCT(0,0,0)
165	#define TY_CTL(A ) TY_CONSTRUCT(1,A,0)
166	#define TY_ESC(A ) TY_CONSTRUCT(2,A,0)
167	#define TY_ESC_CS(A,B) TY_CONSTRUCT(3,A,B)
168	#define TY_ESC_DE(A ) TY_CONSTRUCT(4,A,0)
169	#define TY_CSI_PS(A,N) TY_CONSTRUCT(5,A,N)
170	#define TY_CSI_PN(A ) TY_CONSTRUCT(6,A,0)
171	#define TY_CSI_PR(A,N) TY_CONSTRUCT(7,A,N)
172	#define TY_CSI_PS_SP(A,N) TY_CONSTRUCT(11,A,N)
173
174	#define TY_VT52(A) TY_CONSTRUCT(8,A,0)
175	#define TY_CSI_PG(A) TY_CONSTRUCT(9,A,0)
176	#define TY_CSI_PE(A) TY_CONSTRUCT(10,A,0)
177
178	#define MAX_ARGUMENT 4096
179
180	// Tokenizer --------------------------------------------------------------- --
181
182	/* The tokenizer's state
183
184	The state is represented by the buffer (tokenBuffer, tokenBufferPos),
185	and accompanied by decoded arguments kept in (argv,argc).
186	Note that they are kept internal in the tokenizer.
187	*/
188
189	void Vt102Emulation::resetTokenizer()
190	{
191	tokenBufferPos = 0;
192	argc = 0;
193	argv[0] = 0;
194	argv[1] = 0;
195	prevCC = 0;
196	}
197
198	void Vt102Emulation::addDigit(int digit)
199	{
200	if (argv[argc] < MAX_ARGUMENT)
201	argv[argc] = 10*argv[argc] + digit;
202	}
203
204	void Vt102Emulation::addArgument()
205	{
206	argc = qMin(argc+1,MAXARGS-1);
207	argv[argc] = 0;
208	}
209
210	void Vt102Emulation::addToCurrentToken(wchar_t cc)
211	{
212	tokenBuffer[tokenBufferPos] = cc;
213	tokenBufferPos = qMin(tokenBufferPos+1,MAX_TOKEN_LENGTH-1);
214	}
215
216	// Character Class flags used while decoding
217	#define CTL 1 // Control character
218	#define CHR 2 // Printable character
219	#define CPN 4 // TODO: Document me
220	#define DIG 8 // Digit
221	#define SCS 16 // TODO: Document me
222	#define GRP 32 // TODO: Document me
223	#define CPS 64 // Character which indicates end of window resize
224	// escape sequence '\e[8;<row>;<col>t'
225
226	void Vt102Emulation::initTokenizer()
227	{
228	int i;
229	quint8* s;
230	for(i = 0;i < 256; ++i)
231	charClass[i] = 0;
232	for(i = 0;i < 32; ++i)
233	charClass[i] \|= CTL;
234	for(i = 32;i < 256; ++i)
235	charClass[i] \|= CHR;
236	for(s = (quint8)"@ABCDEFGHILMPSTXZbcdfry"; s; ++s)
237	charClass[*s] \|= CPN;
238	// resize = \e[8;<row>;<col>t
239	for(s = (quint8)"t"; s; ++s)
240	charClass[*s] \|= CPS;
241	for(s = (quint8)"0123456789"; s; ++s)
242	charClass[*s] \|= DIG;
243	for(s = (quint8)"()+%"; *s; ++s)
244	charClass[*s] \|= SCS;
245	for(s = (quint8)"()+#[]%"; *s; ++s)
246	charClass[*s] \|= GRP;
247
248	resetTokenizer();
249	}
250
251	/* Ok, here comes the nasty part of the decoder.
252
253	Instead of keeping an explicit state, we deduce it from the
254	token scanned so far. It is then immediately combined with
255	the current character to form a scanning decision.
256
257	This is done by the following defines.
258
259	- P is the length of the token scanned so far.
260	- L (often P-1) is the position on which contents we base a decision.
261	- C is a character or a group of characters (taken from 'charClass').
262
263	- 'cc' is the current character
264	- 's' is a pointer to the start of the token buffer
265	- 'p' is the current position within the token buffer
266
267	Note that they need to applied in proper order.
268	*/
269
270	#define lec(P,L,C) (p == (P) && s[(L)] == (C))
271	#define lun( ) (p == 1 && cc >= 32 )
272	#define les(P,L,C) (p == (P) && s[L] < 256 && (charClass[s[(L)]] & (C)) == (C))
273	#define eec(C) (p >= 3 && cc == (C))
274	#define ees(C) (p >= 3 && cc < 256 && (charClass[cc] & (C)) == (C))
275	#define eps(C) (p >= 3 && s[2] != '?' && s[2] != '!' && s[2] != '>' && cc < 256 && (charClass[cc] & (C)) == (C))
276	#define epp( ) (p >= 3 && s[2] == '?')
277	#define epe( ) (p >= 3 && s[2] == '!')
278	#define egt( ) (p >= 3 && s[2] == '>')
279	#define esp( ) (p == 4 && s[3] == ' ')
280	#define Xpe (tokenBufferPos >= 2 && tokenBuffer[1] == ']')
281	#define Xte (Xpe && (cc == 7 \|\| (prevCC == 27 && cc == 92) )) // 27, 92 => "\e\\" (ST, String Terminator)
282	#define ces(C) (cc < 256 && (charClass[cc] & (C)) == (C) && !Xte)
283
284	#define CNTL(c) ((c)-'@')
285	#define ESC 27
286	#define DEL 127
287
288	// process an incoming unicode character
289	void Vt102Emulation::receiveChar(wchar_t cc)
290	{
291	if (cc == DEL)
292	return; //VT100: ignore.
293
294	if (ces(CTL))
295	{
296	// ignore control characters in the text part of Xpe (aka OSC) "ESC]"
297	// escape sequences; this matches what XTERM docs say
298	if (Xpe) {
299	prevCC = cc;
300	return;
301	}
302
303	// DEC HACK ALERT! Control Characters are allowed within esc sequences in VT100
304	// This means, they do neither a resetTokenizer() nor a pushToToken(). Some of them, do
305	// of course. Guess this originates from a weakly layered handling of the X-on
306	// X-off protocol, which comes really below this level.
307	if (cc == CNTL('X') \|\| cc == CNTL('Z') \|\| cc == ESC)
308	resetTokenizer(); //VT100: CAN or SUB
309	if (cc != ESC)
310	{
311	processToken(TY_CTL(cc+'@' ),0,0);
312	return;
313	}
314	}
315	// advance the state
316	addToCurrentToken(cc);
317
318	wchar_t* s = tokenBuffer;
319	int p = tokenBufferPos;
320
321	if (getMode(MODE_Ansi))
322	{
323	if (lec(1,0,ESC)) { return; }
324	if (lec(1,0,ESC+128)) { s[0] = ESC; receiveChar('['); return; }
325	if (les(2,1,GRP)) { return; }
326	if (Xte ) { processWindowAttributeChange(); resetTokenizer(); return; }
327	if (Xpe ) { prevCC = cc; return; }
328	if (lec(3,2,'?')) { return; }
329	if (lec(3,2,'>')) { return; }
330	if (lec(3,2,'!')) { return; }
331	if (lun( )) { processToken( TY_CHR(), applyCharset(cc), 0); resetTokenizer(); return; }
332	if (lec(2,0,ESC)) { processToken( TY_ESC(s[1]), 0, 0); resetTokenizer(); return; }
333	if (les(3,1,SCS)) { processToken( TY_ESC_CS(s[1],s[2]), 0, 0); resetTokenizer(); return; }
334	if (lec(3,1,'#')) { processToken( TY_ESC_DE(s[2]), 0, 0); resetTokenizer(); return; }
335	if (eps( CPN)) { processToken( TY_CSI_PN(cc), argv[0],argv[1]); resetTokenizer(); return; }
336	if (esp( )) { return; }
337	if (lec(5, 4, 'q') && s[3] == ' ') {
338	processToken( TY_CSI_PS_SP(cc, argv[0]), argv[0], 0);
339	resetTokenizer();
340	return;
341	}
342
343	// resize = \e[8;<row>;<col>t
344	if (eps(CPS))
345	{
346	processToken( TY_CSI_PS(cc, argv[0]), argv[1], argv[2]);
347	resetTokenizer();
348	return;
349	}
350
351	if (epe( )) { processToken( TY_CSI_PE(cc), 0, 0); resetTokenizer(); return; }
352	if (ees(DIG)) { addDigit(cc-'0'); return; }
353	if (eec(';') \|\| eec(':')) { addArgument(); return; }
354	for (int i=0;i<=argc;i++)
355	{
356	if (epp())
357	processToken( TY_CSI_PR(cc,argv[i]), 0, 0);
358	else if (egt())
359	processToken( TY_CSI_PG(cc), 0, 0); // spec. case for ESC]>0c or ESC]>c
360	else if (cc == 'm' && argc - i >= 4 && (argv[i] == 38 \|\| argv[i] == 48) && argv[i+1] == 2)
361	{
362	// ESC[ ... 48;2;<red>;<green>;<blue> ... m -or- ESC[ ... 38;2;<red>;<green>;<blue> ... m
363	i += 2;
364	processToken( TY_CSI_PS(cc, argv[i-2]), COLOR_SPACE_RGB, (argv[i] << 16) \| (argv[i+1] << 8) \| argv[i+2]);
365	i += 2;
366	}
367	else if (cc == 'm' && argc - i >= 2 && (argv[i] == 38 \|\| argv[i] == 48) && argv[i+1] == 5)
368	{
369	// ESC[ ... 48;5;<index> ... m -or- ESC[ ... 38;5;<index> ... m
370	i += 2;
371	processToken( TY_CSI_PS(cc, argv[i-2]), COLOR_SPACE_256, argv[i]);
372	}
373	else
374	processToken( TY_CSI_PS(cc,argv[i]), 0, 0);
375	}
376	resetTokenizer();
377	}
378	else
379	{
380	// VT52 Mode
381	if (lec(1,0,ESC))
382	return;
383	if (les(1,0,CHR))
384	{
385	processToken( TY_CHR(), s[0], 0);
386	resetTokenizer();
387	return;
388	}
389	if (lec(2,1,'Y'))
390	return;
391	if (lec(3,1,'Y'))
392	return;
393	if (p < 4)
394	{
395	processToken( TY_VT52(s[1] ), 0, 0);
396	resetTokenizer();
397	return;
398	}
399	processToken( TY_VT52(s[1]), s[2], s[3]);
400	resetTokenizer();
401	return;
402	}
403	}
404	void Vt102Emulation::processWindowAttributeChange()
405	{
406	// Describes the window or terminal session attribute to change
407	// See Session::UserTitleChange for possible values
408	int attributeToChange = 0;
409	int i;
410	for (i = 2; i < tokenBufferPos &&
411	tokenBuffer[i] >= '0' &&
412	tokenBuffer[i] <= '9'; i++)
413	{
414	attributeToChange = 10 * attributeToChange + (tokenBuffer[i]-'0');
415	}
416
417	if (tokenBuffer[i] != ';')
418	{
419	reportDecodingError();
420	return;
421	}
422
423	// copy from the first char after ';', and skipping the ending delimiter
424	// 0x07 or 0x92. Note that as control characters in OSC text parts are
425	// ignored, only the second char in ST ("\e\\") is appended to tokenBuffer.
426	QString newValue = QString::fromWCharArray(tokenBuffer + i + 1, tokenBufferPos-i-2);
427
428	_pendingTitleUpdates[attributeToChange] = newValue;
429	_titleUpdateTimer->start(20);
430	}
431
432	void Vt102Emulation::updateTitle()
433	{
434	QListIterator<int> iter( _pendingTitleUpdates.keys() );
435	while (iter.hasNext()) {
436	int arg = iter.next();
437	emit titleChanged( arg , _pendingTitleUpdates[arg] );
438	}
439	_pendingTitleUpdates.clear();
440	}
441
442	// Interpreting Codes ---------------------------------------------------------
443
444	/*
445	Now that the incoming character stream is properly tokenized,
446	meaning is assigned to them. These are either operations of
447	the current _screen, or of the emulation class itself.
448
449	The token to be interpreteted comes in as a machine word
450	possibly accompanied by two parameters.
451
452	Likewise, the operations assigned to, come with up to two
453	arguments. One could consider to make up a proper table
454	from the function below.
455
456	The technical reference manual provides more information
457	about this mapping.
458	*/
459
460	void Vt102Emulation::processToken(int token, wchar_t p, int q)
461	{
462	switch (token)
463	{
464
465	case TY_CHR( ) : _currentScreen->displayCharacter (p ); break; //UTF16
466
467	// 127 DEL : ignored on input
468
469	case TY_CTL('@' ) : /* NUL: ignored */ break;
470	case TY_CTL('A' ) : /* SOH: ignored */ break;
471	case TY_CTL('B' ) : /* STX: ignored */ break;
472	case TY_CTL('C' ) : /* ETX: ignored */ break;
473	case TY_CTL('D' ) : /* EOT: ignored */ break;
474	case TY_CTL('E' ) : reportAnswerBack ( ); break; //VT100
475	case TY_CTL('F' ) : /* ACK: ignored */ break;
476	case TY_CTL('G' ) : emit stateSet(NOTIFYBELL);
477	break; //VT100
478	case TY_CTL('H' ) : _currentScreen->backspace ( ); break; //VT100
479	case TY_CTL('I' ) : _currentScreen->tab ( ); break; //VT100
480	case TY_CTL('J' ) : _currentScreen->newLine ( ); break; //VT100
481	case TY_CTL('K' ) : _currentScreen->newLine ( ); break; //VT100
482	case TY_CTL('L' ) : _currentScreen->newLine ( ); break; //VT100
483	case TY_CTL('M' ) : _currentScreen->toStartOfLine ( ); break; //VT100
484
485	case TY_CTL('N' ) : useCharset ( 1); break; //VT100
486	case TY_CTL('O' ) : useCharset ( 0); break; //VT100
487
488	case TY_CTL('P' ) : /* DLE: ignored */ break;
489	case TY_CTL('Q' ) : /* DC1: XON continue */ break; //VT100
490	case TY_CTL('R' ) : /* DC2: ignored */ break;
491	case TY_CTL('S' ) : /* DC3: XOFF halt */ break; //VT100
492	case TY_CTL('T' ) : /* DC4: ignored */ break;
493	case TY_CTL('U' ) : /* NAK: ignored */ break;
494	case TY_CTL('V' ) : /* SYN: ignored */ break;
495	case TY_CTL('W' ) : /* ETB: ignored */ break;
496	case TY_CTL('X' ) : _currentScreen->displayCharacter ( 0x2592); break; //VT100
497	case TY_CTL('Y' ) : /* EM : ignored */ break;
498	case TY_CTL('Z' ) : _currentScreen->displayCharacter ( 0x2592); break; //VT100
499	case TY_CTL('[' ) : /* ESC: cannot be seen here. */ break;
500	case TY_CTL('\\' ) : /* FS : ignored */ break;
501	case TY_CTL(']' ) : /* GS : ignored */ break;
502	case TY_CTL('^' ) : /* RS : ignored */ break;
503	case TY_CTL('_' ) : /* US : ignored */ break;
504
505	case TY_ESC('D' ) : _currentScreen->index ( ); break; //VT100
506	case TY_ESC('E' ) : _currentScreen->nextLine ( ); break; //VT100
507	case TY_ESC('H' ) : _currentScreen->changeTabStop (true ); break; //VT100
508	case TY_ESC('M' ) : _currentScreen->reverseIndex ( ); break; //VT100
509	case TY_ESC('Z' ) : reportTerminalType ( ); break;
510	case TY_ESC('c' ) : reset ( ); break;
511
512	case TY_ESC('n' ) : useCharset ( 2); break;
513	case TY_ESC('o' ) : useCharset ( 3); break;
514	case TY_ESC('7' ) : saveCursor ( ); break;
515	case TY_ESC('8' ) : restoreCursor ( ); break;
516
517	case TY_ESC('=' ) : setMode (MODE_AppKeyPad); break;
518	case TY_ESC('>' ) : resetMode (MODE_AppKeyPad); break;
519	case TY_ESC('<' ) : setMode (MODE_Ansi ); break; //VT100
520
521	case TY_ESC_CS('(', '0') : setCharset (0, '0'); break; //VT100
522	case TY_ESC_CS('(', 'A') : setCharset (0, 'A'); break; //VT100
523	case TY_ESC_CS('(', 'B') : setCharset (0, 'B'); break; //VT100
524
525	case TY_ESC_CS(')', '0') : setCharset (1, '0'); break; //VT100
526	case TY_ESC_CS(')', 'A') : setCharset (1, 'A'); break; //VT100
527	case TY_ESC_CS(')', 'B') : setCharset (1, 'B'); break; //VT100
528
529	case TY_ESC_CS('*', '0') : setCharset (2, '0'); break; //VT100
530	case TY_ESC_CS('*', 'A') : setCharset (2, 'A'); break; //VT100
531	case TY_ESC_CS('*', 'B') : setCharset (2, 'B'); break; //VT100
532
533	case TY_ESC_CS('+', '0') : setCharset (3, '0'); break; //VT100
534	case TY_ESC_CS('+', 'A') : setCharset (3, 'A'); break; //VT100
535	case TY_ESC_CS('+', 'B') : setCharset (3, 'B'); break; //VT100
536
537	case TY_ESC_CS('%', 'G') : setCodec (Utf8Codec ); break; //LINUX
538	case TY_ESC_CS('%', '@') : setCodec (LocaleCodec ); break; //LINUX
539
540	case TY_ESC_DE('3' ) : /* Double height line, top half */
541	_currentScreen->setLineProperty( LINE_DOUBLEWIDTH , true );
542	_currentScreen->setLineProperty( LINE_DOUBLEHEIGHT , true );
543	break;
544	case TY_ESC_DE('4' ) : /* Double height line, bottom half */
545	_currentScreen->setLineProperty( LINE_DOUBLEWIDTH , true );
546	_currentScreen->setLineProperty( LINE_DOUBLEHEIGHT , true );
547	break;
548	case TY_ESC_DE('5' ) : /* Single width, single height line*/
549	_currentScreen->setLineProperty( LINE_DOUBLEWIDTH , false);
550	_currentScreen->setLineProperty( LINE_DOUBLEHEIGHT , false);
551	break;
552	case TY_ESC_DE('6' ) : /* Double width, single height line*/
553	_currentScreen->setLineProperty( LINE_DOUBLEWIDTH , true);
554	_currentScreen->setLineProperty( LINE_DOUBLEHEIGHT , false);
555	break;
556	case TY_ESC_DE('8' ) : _currentScreen->helpAlign ( ); break;
557
558	// resize = \e[8;<row>;<col>t
559	case TY_CSI_PS('t', 8) : setImageSize( p /lines /, q /* columns */ );
560	emit imageResizeRequest(QSize(q, p));
561	break;
562
563	// change tab text color : \e[28;<color>t color: 0-16,777,215
564	case TY_CSI_PS('t', 28) : emit changeTabTextColorRequest ( p ); break;
565
566	case TY_CSI_PS('K', 0) : _currentScreen->clearToEndOfLine ( ); break;
567	case TY_CSI_PS('K', 1) : _currentScreen->clearToBeginOfLine ( ); break;
568	case TY_CSI_PS('K', 2) : _currentScreen->clearEntireLine ( ); break;
569	case TY_CSI_PS('J', 0) : _currentScreen->clearToEndOfScreen ( ); break;
570	case TY_CSI_PS('J', 1) : _currentScreen->clearToBeginOfScreen ( ); break;
571	case TY_CSI_PS('J', 2) : _currentScreen->clearEntireScreen ( ); break;
572	case TY_CSI_PS('J', 3) : clearHistory(); break;
573	case TY_CSI_PS('g', 0) : _currentScreen->changeTabStop (false ); break; //VT100
574	case TY_CSI_PS('g', 3) : _currentScreen->clearTabStops ( ); break; //VT100
575	case TY_CSI_PS('h', 4) : _currentScreen-> setMode (MODE_Insert ); break;
576	case TY_CSI_PS('h', 20) : setMode (MODE_NewLine ); break;
577	case TY_CSI_PS('i', 0) : /* IGNORE: attached printer */ break; //VT100
578	case TY_CSI_PS('l', 4) : _currentScreen-> resetMode (MODE_Insert ); break;
579	case TY_CSI_PS('l', 20) : resetMode (MODE_NewLine ); break;
580	case TY_CSI_PS('s', 0) : saveCursor ( ); break;
581	case TY_CSI_PS('u', 0) : restoreCursor ( ); break;
582
583	case TY_CSI_PS('m', 0) : _currentScreen->setDefaultRendition ( ); break;
584	case TY_CSI_PS('m', 1) : _currentScreen-> setRendition (RE_BOLD ); break; //VT100
585	case TY_CSI_PS('m', 2) : _currentScreen-> setRendition (RE_FAINT ); break;
586	case TY_CSI_PS('m', 3) : _currentScreen-> setRendition (RE_ITALIC ); break; //VT100
587	case TY_CSI_PS('m', 4) : _currentScreen-> setRendition (RE_UNDERLINE); break; //VT100
588	case TY_CSI_PS('m', 5) : _currentScreen-> setRendition (RE_BLINK ); break; //VT100
589	case TY_CSI_PS('m', 7) : _currentScreen-> setRendition (RE_REVERSE ); break;
590	case TY_CSI_PS('m', 8) : _currentScreen-> setRendition (RE_CONCEAL ); break;
591	case TY_CSI_PS('m', 9) : _currentScreen-> setRendition (RE_STRIKEOUT); break;
592	case TY_CSI_PS('m', 53) : _currentScreen-> setRendition (RE_OVERLINE ); break;
593	case TY_CSI_PS('m', 10) : /* IGNORED: mapping related */ break; //LINUX
594	case TY_CSI_PS('m', 11) : /* IGNORED: mapping related */ break; //LINUX
595	case TY_CSI_PS('m', 12) : /* IGNORED: mapping related */ break; //LINUX
596	case TY_CSI_PS('m', 21) : _currentScreen->resetRendition (RE_BOLD ); break;
597	case TY_CSI_PS('m', 22) : _currentScreen->resetRendition (RE_BOLD );
598	_currentScreen->resetRendition (RE_FAINT ); break;
599	case TY_CSI_PS('m', 23) : _currentScreen->resetRendition (RE_ITALIC ); break; //VT100
600	case TY_CSI_PS('m', 24) : _currentScreen->resetRendition (RE_UNDERLINE); break;
601	case TY_CSI_PS('m', 25) : _currentScreen->resetRendition (RE_BLINK ); break;
602	case TY_CSI_PS('m', 27) : _currentScreen->resetRendition (RE_REVERSE ); break;
603	case TY_CSI_PS('m', 28) : _currentScreen->resetRendition (RE_CONCEAL ); break;
604	case TY_CSI_PS('m', 29) : _currentScreen->resetRendition (RE_STRIKEOUT); break;
605	case TY_CSI_PS('m', 55) : _currentScreen->resetRendition (RE_OVERLINE ); break;
606
607	case TY_CSI_PS('m', 30) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 0); break;
608	case TY_CSI_PS('m', 31) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 1); break;
609	case TY_CSI_PS('m', 32) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 2); break;
610	case TY_CSI_PS('m', 33) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 3); break;
611	case TY_CSI_PS('m', 34) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 4); break;
612	case TY_CSI_PS('m', 35) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 5); break;
613	case TY_CSI_PS('m', 36) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 6); break;
614	case TY_CSI_PS('m', 37) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 7); break;
615
616	case TY_CSI_PS('m', 38) : _currentScreen->setForeColor (p, q); break;
617
618	case TY_CSI_PS('m', 39) : _currentScreen->setForeColor (COLOR_SPACE_DEFAULT, 0); break;
619
620	case TY_CSI_PS('m', 40) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 0); break;
621	case TY_CSI_PS('m', 41) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 1); break;
622	case TY_CSI_PS('m', 42) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 2); break;
623	case TY_CSI_PS('m', 43) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 3); break;
624	case TY_CSI_PS('m', 44) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 4); break;
625	case TY_CSI_PS('m', 45) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 5); break;
626	case TY_CSI_PS('m', 46) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 6); break;
627	case TY_CSI_PS('m', 47) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 7); break;
628
629	case TY_CSI_PS('m', 48) : _currentScreen->setBackColor (p, q); break;
630
631	case TY_CSI_PS('m', 49) : _currentScreen->setBackColor (COLOR_SPACE_DEFAULT, 1); break;
632
633	case TY_CSI_PS('m', 90) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 8); break;
634	case TY_CSI_PS('m', 91) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 9); break;
635	case TY_CSI_PS('m', 92) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 10); break;
636	case TY_CSI_PS('m', 93) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 11); break;
637	case TY_CSI_PS('m', 94) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 12); break;
638	case TY_CSI_PS('m', 95) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 13); break;
639	case TY_CSI_PS('m', 96) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 14); break;
640	case TY_CSI_PS('m', 97) : _currentScreen->setForeColor (COLOR_SPACE_SYSTEM, 15); break;
641
642	case TY_CSI_PS('m', 100) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 8); break;
643	case TY_CSI_PS('m', 101) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 9); break;
644	case TY_CSI_PS('m', 102) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 10); break;
645	case TY_CSI_PS('m', 103) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 11); break;
646	case TY_CSI_PS('m', 104) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 12); break;
647	case TY_CSI_PS('m', 105) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 13); break;
648	case TY_CSI_PS('m', 106) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 14); break;
649	case TY_CSI_PS('m', 107) : _currentScreen->setBackColor (COLOR_SPACE_SYSTEM, 15); break;
650
651	case TY_CSI_PS('n', 5) : reportStatus ( ); break;
652	case TY_CSI_PS('n', 6) : reportCursorPosition ( ); break;
653	case TY_CSI_PS('q', 0) : /* IGNORED: LEDs off */ break; //VT100
654	case TY_CSI_PS('q', 1) : /* IGNORED: LED1 on */ break; //VT100
655	case TY_CSI_PS('q', 2) : /* IGNORED: LED2 on */ break; //VT100
656	case TY_CSI_PS('q', 3) : /* IGNORED: LED3 on */ break; //VT100
657	case TY_CSI_PS('q', 4) : /* IGNORED: LED4 on */ break; //VT100
658	case TY_CSI_PS('x', 0) : reportTerminalParms ( 2); break; //VT100
659	case TY_CSI_PS('x', 1) : reportTerminalParms ( 3); break; //VT100
660
661	case TY_CSI_PS_SP('q', 0) : /* fall through */
662	case TY_CSI_PS_SP('q', 1) : emit cursorChanged(KeyboardCursorShape::BlockCursor, true ); break;
663	case TY_CSI_PS_SP('q', 2) : emit cursorChanged(KeyboardCursorShape::BlockCursor, false); break;
664	case TY_CSI_PS_SP('q', 3) : emit cursorChanged(KeyboardCursorShape::UnderlineCursor, true ); break;
665	case TY_CSI_PS_SP('q', 4) : emit cursorChanged(KeyboardCursorShape::UnderlineCursor, false); break;
666	case TY_CSI_PS_SP('q', 5) : emit cursorChanged(KeyboardCursorShape::IBeamCursor, true ); break;
667	case TY_CSI_PS_SP('q', 6) : emit cursorChanged(KeyboardCursorShape::IBeamCursor, false); break;
668
669	case TY_CSI_PN('@' ) : _currentScreen->insertChars (p ); break;
670	case TY_CSI_PN('A' ) : _currentScreen->cursorUp (p ); break; //VT100
671	case TY_CSI_PN('B' ) : _currentScreen->cursorDown (p ); break; //VT100
672	case TY_CSI_PN('C' ) : _currentScreen->cursorRight (p ); break; //VT100
673	case TY_CSI_PN('D' ) : _currentScreen->cursorLeft (p ); break; //VT100
674	case TY_CSI_PN('E' ) : _currentScreen->cursorNextLine (p ); break; //VT100
675	case TY_CSI_PN('F' ) : _currentScreen->cursorPreviousLine (p ); break; //VT100
676	case TY_CSI_PN('G' ) : _currentScreen->setCursorX (p ); break; //LINUX
677	case TY_CSI_PN('H' ) : _currentScreen->setCursorYX (p, q); break; //VT100
678	case TY_CSI_PN('I' ) : _currentScreen->tab (p ); break;
679	case TY_CSI_PN('L' ) : _currentScreen->insertLines (p ); break;
680	case TY_CSI_PN('M' ) : _currentScreen->deleteLines (p ); break;
681	case TY_CSI_PN('P' ) : _currentScreen->deleteChars (p ); break;
682	case TY_CSI_PN('S' ) : _currentScreen->scrollUp (p ); break;
683	case TY_CSI_PN('T' ) : _currentScreen->scrollDown (p ); break;
684	case TY_CSI_PN('X' ) : _currentScreen->eraseChars (p ); break;
685	case TY_CSI_PN('Z' ) : _currentScreen->backtab (p ); break;
686	case TY_CSI_PN('b' ) : _currentScreen->repeatChars (p ); break;
687	case TY_CSI_PN('c' ) : reportTerminalType ( ); break; //VT100
688	case TY_CSI_PN('d' ) : _currentScreen->setCursorY (p ); break; //LINUX
689	case TY_CSI_PN('f' ) : _currentScreen->setCursorYX (p, q); break; //VT100
690	case TY_CSI_PN('r' ) : setMargins (p, q); break; //VT100
691	case TY_CSI_PN('y' ) : /* IGNORED: Confidence test */ break; //VT100
692
693	case TY_CSI_PR('h', 1) : setMode (MODE_AppCuKeys); break; //VT100
694	case TY_CSI_PR('l', 1) : resetMode (MODE_AppCuKeys); break; //VT100
695	case TY_CSI_PR('s', 1) : saveMode (MODE_AppCuKeys); break; //FIXME
696	case TY_CSI_PR('r', 1) : restoreMode (MODE_AppCuKeys); break; //FIXME
697
698	case TY_CSI_PR('l', 2) : resetMode (MODE_Ansi ); break; //VT100
699
700	case TY_CSI_PR('h', 3) : setMode (MODE_132Columns);break; //VT100
701	case TY_CSI_PR('l', 3) : resetMode (MODE_132Columns);break; //VT100
702
703	case TY_CSI_PR('h', 4) : /* IGNORED: soft scrolling */ break; //VT100
704	case TY_CSI_PR('l', 4) : /* IGNORED: soft scrolling */ break; //VT100
705
706	case TY_CSI_PR('h', 5) : _currentScreen-> setMode (MODE_Screen ); break; //VT100
707	case TY_CSI_PR('l', 5) : _currentScreen-> resetMode (MODE_Screen ); break; //VT100
708
709	case TY_CSI_PR('h', 6) : _currentScreen-> setMode (MODE_Origin ); break; //VT100
710	case TY_CSI_PR('l', 6) : _currentScreen-> resetMode (MODE_Origin ); break; //VT100
711	case TY_CSI_PR('s', 6) : _currentScreen-> saveMode (MODE_Origin ); break; //FIXME
712	case TY_CSI_PR('r', 6) : _currentScreen->restoreMode (MODE_Origin ); break; //FIXME
713
714	case TY_CSI_PR('h', 7) : _currentScreen-> setMode (MODE_Wrap ); break; //VT100
715	case TY_CSI_PR('l', 7) : _currentScreen-> resetMode (MODE_Wrap ); break; //VT100
716	case TY_CSI_PR('s', 7) : _currentScreen-> saveMode (MODE_Wrap ); break; //FIXME
717	case TY_CSI_PR('r', 7) : _currentScreen->restoreMode (MODE_Wrap ); break; //FIXME
718
719	case TY_CSI_PR('h', 8) : /* IGNORED: autorepeat on */ break; //VT100
720	case TY_CSI_PR('l', 8) : /* IGNORED: autorepeat off */ break; //VT100
721	case TY_CSI_PR('s', 8) : /* IGNORED: autorepeat on */ break; //VT100
722	case TY_CSI_PR('r', 8) : /* IGNORED: autorepeat off */ break; //VT100
723
724	case TY_CSI_PR('h', 9) : /* IGNORED: interlace */ break; //VT100
725	case TY_CSI_PR('l', 9) : /* IGNORED: interlace */ break; //VT100
726	case TY_CSI_PR('s', 9) : /* IGNORED: interlace */ break; //VT100
727	case TY_CSI_PR('r', 9) : /* IGNORED: interlace */ break; //VT100
728
729	case TY_CSI_PR('h', 12) : /* IGNORED: Cursor blink */ break; //att610
730	case TY_CSI_PR('l', 12) : /* IGNORED: Cursor blink */ break; //att610
731	case TY_CSI_PR('s', 12) : /* IGNORED: Cursor blink */ break; //att610
732	case TY_CSI_PR('r', 12) : /* IGNORED: Cursor blink */ break; //att610
733
734	case TY_CSI_PR('h', 25) : setMode (MODE_Cursor ); break; //VT100
735	case TY_CSI_PR('l', 25) : resetMode (MODE_Cursor ); break; //VT100
736	case TY_CSI_PR('s', 25) : saveMode (MODE_Cursor ); break; //VT100
737	case TY_CSI_PR('r', 25) : restoreMode (MODE_Cursor ); break; //VT100
738
739	case TY_CSI_PR('h', 40) : setMode(MODE_Allow132Columns ); break; // XTERM
740	case TY_CSI_PR('l', 40) : resetMode(MODE_Allow132Columns ); break; // XTERM
741
742	case TY_CSI_PR('h', 41) : /* IGNORED: obsolete more(1) fix */ break; //XTERM
743	case TY_CSI_PR('l', 41) : /* IGNORED: obsolete more(1) fix */ break; //XTERM
744	case TY_CSI_PR('s', 41) : /* IGNORED: obsolete more(1) fix */ break; //XTERM
745	case TY_CSI_PR('r', 41) : /* IGNORED: obsolete more(1) fix */ break; //XTERM
746
747	case TY_CSI_PR('h', 47) : setMode (MODE_AppScreen); break; //VT100
748	case TY_CSI_PR('l', 47) : resetMode (MODE_AppScreen); break; //VT100
749	case TY_CSI_PR('s', 47) : saveMode (MODE_AppScreen); break; //XTERM
750	case TY_CSI_PR('r', 47) : restoreMode (MODE_AppScreen); break; //XTERM
751
752	case TY_CSI_PR('h', 67) : /* IGNORED: DECBKM */ break; //XTERM
753	case TY_CSI_PR('l', 67) : /* IGNORED: DECBKM */ break; //XTERM
754	case TY_CSI_PR('s', 67) : /* IGNORED: DECBKM */ break; //XTERM
755	case TY_CSI_PR('r', 67) : /* IGNORED: DECBKM */ break; //XTERM
756
757	// XTerm defines the following modes:
758	// SET_VT200_MOUSE 1000
759	// SET_VT200_HIGHLIGHT_MOUSE 1001
760	// SET_BTN_EVENT_MOUSE 1002
761	// SET_ANY_EVENT_MOUSE 1003
762	//
763
764	//Note about mouse modes:
765	//There are four mouse modes which xterm-compatible terminals can support - 1000,1001,1002,1003
766	//Konsole currently supports mode 1000 (basic mouse press and release) and mode 1002 (dragging the mouse).
767	//TODO: Implementation of mouse modes 1001 (something called highlight tracking) and
768	//1003 (a slight variation on dragging the mouse)
769	//
770
771	case TY_CSI_PR('h', 1000) : setMode (MODE_Mouse1000); break; //XTERM
772	case TY_CSI_PR('l', 1000) : resetMode (MODE_Mouse1000); break; //XTERM
773	case TY_CSI_PR('s', 1000) : saveMode (MODE_Mouse1000); break; //XTERM
774	case TY_CSI_PR('r', 1000) : restoreMode (MODE_Mouse1000); break; //XTERM
775
776	case TY_CSI_PR('h', 1001) : /* IGNORED: hilite mouse tracking */ break; //XTERM
777	case TY_CSI_PR('l', 1001) : resetMode (MODE_Mouse1001); break; //XTERM
778	case TY_CSI_PR('s', 1001) : /* IGNORED: hilite mouse tracking */ break; //XTERM
779	case TY_CSI_PR('r', 1001) : /* IGNORED: hilite mouse tracking */ break; //XTERM
780
781	case TY_CSI_PR('h', 1002) : setMode (MODE_Mouse1002); break; //XTERM
782	case TY_CSI_PR('l', 1002) : resetMode (MODE_Mouse1002); break; //XTERM
783	case TY_CSI_PR('s', 1002) : saveMode (MODE_Mouse1002); break; //XTERM
784	case TY_CSI_PR('r', 1002) : restoreMode (MODE_Mouse1002); break; //XTERM
785
786	case TY_CSI_PR('h', 1003) : setMode (MODE_Mouse1003); break; //XTERM
787	case TY_CSI_PR('l', 1003) : resetMode (MODE_Mouse1003); break; //XTERM
788	case TY_CSI_PR('s', 1003) : saveMode (MODE_Mouse1003); break; //XTERM
789	case TY_CSI_PR('r', 1003) : restoreMode (MODE_Mouse1003); break; //XTERM
790
791	case TY_CSI_PR('h', 1004) : _reportFocusEvents = true; break;
792	case TY_CSI_PR('l', 1004) : _reportFocusEvents = false; break;
793
794	case TY_CSI_PR('h', 1005) : setMode (MODE_Mouse1005); break; //XTERM
795	case TY_CSI_PR('l', 1005) : resetMode (MODE_Mouse1005); break; //XTERM
796	case TY_CSI_PR('s', 1005) : saveMode (MODE_Mouse1005); break; //XTERM
797	case TY_CSI_PR('r', 1005) : restoreMode (MODE_Mouse1005); break; //XTERM
798
799	case TY_CSI_PR('h', 1006) : setMode (MODE_Mouse1006); break; //XTERM
800	case TY_CSI_PR('l', 1006) : resetMode (MODE_Mouse1006); break; //XTERM
801	case TY_CSI_PR('s', 1006) : saveMode (MODE_Mouse1006); break; //XTERM
802	case TY_CSI_PR('r', 1006) : restoreMode (MODE_Mouse1006); break; //XTERM
803
804	case TY_CSI_PR('h', 1015) : setMode (MODE_Mouse1015); break; //URXVT
805	case TY_CSI_PR('l', 1015) : resetMode (MODE_Mouse1015); break; //URXVT
806	case TY_CSI_PR('s', 1015) : saveMode (MODE_Mouse1015); break; //URXVT
807	case TY_CSI_PR('r', 1015) : restoreMode (MODE_Mouse1015); break; //URXVT
808
809	case TY_CSI_PR('h', 1034) : /* IGNORED: 8bitinput activation */ break; //XTERM
810
811	case TY_CSI_PR('h', 1047) : setMode (MODE_AppScreen); break; //XTERM
812	case TY_CSI_PR('l', 1047) : _screen[1]->clearEntireScreen(); resetMode(MODE_AppScreen); break; //XTERM
813	case TY_CSI_PR('s', 1047) : saveMode (MODE_AppScreen); break; //XTERM
814	case TY_CSI_PR('r', 1047) : restoreMode (MODE_AppScreen); break; //XTERM
815
816	//FIXME: Unitoken: save translations
817	case TY_CSI_PR('h', 1048) : saveCursor ( ); break; //XTERM
818	case TY_CSI_PR('l', 1048) : restoreCursor ( ); break; //XTERM
819	case TY_CSI_PR('s', 1048) : saveCursor ( ); break; //XTERM
820	case TY_CSI_PR('r', 1048) : restoreCursor ( ); break; //XTERM
821
822	//FIXME: every once new sequences like this pop up in xterm.
823	// Here's a guess of what they could mean.
824	case TY_CSI_PR('h', 1049) : saveCursor(); _screen[1]->clearEntireScreen(); setMode(MODE_AppScreen); break; //XTERM
825	case TY_CSI_PR('l', 1049) : resetMode(MODE_AppScreen); restoreCursor(); break; //XTERM
826
827	case TY_CSI_PR('h', 2004) : setMode (MODE_BracketedPaste); break; //XTERM
828	case TY_CSI_PR('l', 2004) : resetMode (MODE_BracketedPaste); break; //XTERM
829	case TY_CSI_PR('s', 2004) : saveMode (MODE_BracketedPaste); break; //XTERM
830	case TY_CSI_PR('r', 2004) : restoreMode (MODE_BracketedPaste); break; //XTERM
831
832	//FIXME: weird DEC reset sequence
833	case TY_CSI_PE('p' ) : /* IGNORED: reset ( ) */ break;
834
835	//FIXME: when changing between vt52 and ansi mode evtl do some resetting.
836	case TY_VT52('A' ) : _currentScreen->cursorUp ( 1); break; //VT52
837	case TY_VT52('B' ) : _currentScreen->cursorDown ( 1); break; //VT52
838	case TY_VT52('C' ) : _currentScreen->cursorRight ( 1); break; //VT52
839	case TY_VT52('D' ) : _currentScreen->cursorLeft ( 1); break; //VT52
840
841	case TY_VT52('F' ) : setAndUseCharset (0, '0'); break; //VT52
842	case TY_VT52('G' ) : setAndUseCharset (0, 'B'); break; //VT52
843
844	case TY_VT52('H' ) : _currentScreen->setCursorYX (1,1 ); break; //VT52
845	case TY_VT52('I' ) : _currentScreen->reverseIndex ( ); break; //VT52
846	case TY_VT52('J' ) : _currentScreen->clearToEndOfScreen ( ); break; //VT52
847	case TY_VT52('K' ) : _currentScreen->clearToEndOfLine ( ); break; //VT52
848	case TY_VT52('Y' ) : _currentScreen->setCursorYX (p-31,q-31 ); break; //VT52
849	case TY_VT52('Z' ) : reportTerminalType ( ); break; //VT52
850	case TY_VT52('<' ) : setMode (MODE_Ansi ); break; //VT52
851	case TY_VT52('=' ) : setMode (MODE_AppKeyPad); break; //VT52
852	case TY_VT52('>' ) : resetMode (MODE_AppKeyPad); break; //VT52
853
854	case TY_CSI_PG('c' ) : reportSecondaryAttributes( ); break; //VT100
855
856	default:
857	reportDecodingError();
858	break;
859	};
860	}
861
862	void Vt102Emulation::clearScreenAndSetColumns(int columnCount)
863	{
864	setImageSize(_currentScreen->getLines(),columnCount);
865	clearEntireScreen();
866	setDefaultMargins();
867	_currentScreen->setCursorYX(0,0);
868	}
869
870	void Vt102Emulation::sendString(const char* s , int length)
871	{
872	if ( length >= 0 )
873	emit sendData(s,length);
874	else
875	emit sendData(s,strlen(s));
876	}
877
878	void Vt102Emulation::reportCursorPosition()
879	{
880	const size_t sz = 20;
881	char tmp[sz];
882	const size_t r = snprintf(tmp, sz, "\033[%d;%dR",_currentScreen->getCursorY()+1,_currentScreen->getCursorX()+1);
883	if (sz <= r) {
884	qWarning("Vt102Emulation::reportCursorPosition: Buffer too small\n");
885	}
886	sendString(tmp);
887	}
888
889	void Vt102Emulation::reportTerminalType()
890	{
891	// Primary device attribute response (Request was: ^[[0c or ^[[c (from TT321 Users Guide))
892	// VT220: ^[[?63;1;2;3;6;7;8c (list deps on emul. capabilities)
893	// VT100: ^[[?1;2c
894	// VT101: ^[[?1;0c
895	// VT102: ^[[?6v
896	if (getMode(MODE_Ansi))
897	sendString("\033[?1;2c"); // I'm a VT100
898	else
899	sendString("\033/Z"); // I'm a VT52
900	}
901
902	void Vt102Emulation::reportSecondaryAttributes()
903	{
904	// Secondary device attribute response (Request was: ^[[>0c or ^[[>c)
905	if (getMode(MODE_Ansi))
906	sendString("\033[>0;115;0c"); // Why 115? ;)
907	else
908	sendString("\033/Z"); // FIXME I don't think VT52 knows about it but kept for
909	// konsoles backward compatibility.
910	}
911
912	void Vt102Emulation::reportTerminalParms(int p)
913	// DECREPTPARM
914	{
915	const size_t sz = 100;
916	char tmp[sz];
917	const size_t r = snprintf(tmp, sz, "\033[%d;1;1;112;112;1;0x",p); // not really true.
918	if (sz <= r) {
919	qWarning("Vt102Emulation::reportTerminalParms: Buffer too small\n");
920	}
921	sendString(tmp);
922	}
923
924	void Vt102Emulation::reportStatus()
925	{
926	sendString("\033[0n"); //VT100. Device status report. 0 = Ready.
927	}
928
929	void Vt102Emulation::reportAnswerBack()
930	{
931	// FIXME - Test this with VTTEST
932	// This is really obsolete VT100 stuff.
933	const char* ANSWER_BACK = "";
934	sendString(ANSWER_BACK);
935	}
936
937	/*!
938	`cx',`cy' are 1-based.
939	`cb' indicates the button pressed or released (0-2) or scroll event (4-5).
940
941	eventType represents the kind of mouse action that occurred:
942	0 = Mouse button press
943	1 = Mouse drag
944	2 = Mouse button release
945	*/
946
947	void Vt102Emulation::sendMouseEvent( int cb, int cx, int cy , int eventType )
948	{
949	if (cx < 1 \|\| cy < 1)
950	return;
951
952	// With the exception of the 1006 mode, button release is encoded in cb.
953	// Note that if multiple extensions are enabled, the 1006 is used, so it's okay to check for only that.
954	if (eventType == 2 && !getMode(MODE_Mouse1006))
955	cb = 3;
956
957	// normal buttons are passed as 0x20 + button,
958	// mouse wheel (buttons 4,5) as 0x5c + button
959	if (cb >= 4)
960	cb += 0x3c;
961
962	//Mouse motion handling
963	if ((getMode(MODE_Mouse1002) \|\| getMode(MODE_Mouse1003)) && eventType == 1)
964	cb += 0x20; //add 32 to signify motion event
965
966	char command[64];
967	command[0] = '\0';
968	// Check the extensions in decreasing order of preference. Encoding the release event above assumes that 1006 comes first.
969	if (getMode(MODE_Mouse1006)) {
970	snprintf(command, sizeof(command), "\033[<%d;%d;%d%c", cb, cx, cy, eventType == 2 ? 'm' : 'M');
971	} else if (getMode(MODE_Mouse1015)) {
972	snprintf(command, sizeof(command), "\033[%d;%d;%dM", cb + 0x20, cx, cy);
973	} else if (getMode(MODE_Mouse1005)) {
974	if (cx <= 2015 && cy <= 2015) {
975	// The xterm extension uses UTF-8 (up to 2 bytes) to encode
976	// coordinate+32, no matter what the locale is. We could easily
977	// convert manually, but QString can also do it for us.
978	QChar coords[2];
979	coords[0] = QChar(cx + 0x20);
980	coords[1] = QChar(cy + 0x20);
981	QString coordsStr = QString(coords, 2);
982	QByteArray utf8 = coordsStr.toUtf8();
983	snprintf(command, sizeof(command), "\033[M%c%s", cb + 0x20, utf8.constData());
984	}
985	} else if (cx <= 223 && cy <= 223) {
986	snprintf(command, sizeof(command), "\033[M%c%c%c", cb + 0x20, cx + 0x20, cy + 0x20);
987	}
988
989	sendString(command);
990	}
991
992	/**
993	* The focus lost event can be used by Vim (or other terminal applications)
994	* to recognize that the konsole window has lost focus.
995	* The escape sequence is also used by iTerm2.
996	* Vim needs the following plugin to be installed to convert the escape
997	* sequence into the FocusLost autocmd: https://github.com/sjl/vitality.vim
998	*/
999	void Vt102Emulation::focusLost(void)
1000	{
1001	if (_reportFocusEvents)
1002	sendString("\033[O");
1003	}
1004
1005	/**
1006	* The focus gained event can be used by Vim (or other terminal applications)
1007	* to recognize that the konsole window has gained focus again.
1008	* The escape sequence is also used by iTerm2.
1009	* Vim needs the following plugin to be installed to convert the escape
1010	* sequence into the FocusGained autocmd: https://github.com/sjl/vitality.vim
1011	*/
1012	void Vt102Emulation::focusGained(void)
1013	{
1014	if (_reportFocusEvents)
1015	sendString("\033[I");
1016	}
1017
1018	void Vt102Emulation::sendText( const QString& text )
1019	{
1020	if (!text.isEmpty())
1021	{
1022	QKeyEvent event(QEvent::KeyPress,
1023	0,
1024	Qt::NoModifier,
1025	text);
1026	sendKeyEvent(&event, false); // expose as a big fat keypress event
1027	}
1028	}
1029	void Vt102Emulation::sendKeyEvent(QKeyEvent* event, bool fromPaste)
1030	{
1031	Qt::KeyboardModifiers modifiers = event->modifiers();
1032	KeyboardTranslator::States states = KeyboardTranslator::NoState;
1033
1034	// get current states
1035	if (getMode(MODE_NewLine) ) states \|= KeyboardTranslator::NewLineState;
1036	if (getMode(MODE_Ansi) ) states \|= KeyboardTranslator::AnsiState;
1037	if (getMode(MODE_AppCuKeys)) states \|= KeyboardTranslator::CursorKeysState;
1038	if (getMode(MODE_AppScreen)) states \|= KeyboardTranslator::AlternateScreenState;
1039	if (getMode(MODE_AppKeyPad) && (modifiers & Qt::KeypadModifier))
1040	states \|= KeyboardTranslator::ApplicationKeypadState;
1041
1042	// check flow control state
1043	if (modifiers & KeyboardTranslator::CTRL_MOD)
1044	{
1045	switch (event->key()) {
1046	case Qt::Key_S:
1047	emit flowControlKeyPressed(true);
1048	break;
1049	case Qt::Key_Q:
1050	case Qt::Key_C: // cancel flow control
1051	emit flowControlKeyPressed(false);
1052	break;
1053	}
1054	}
1055
1056	// lookup key binding
1057	if ( _keyTranslator )
1058	{
1059	KeyboardTranslator::Entry entry = _keyTranslator->findEntry(
1060	event->key() ,
1061	modifiers,
1062	states );
1063
1064	// send result to terminal
1065	QByteArray textToSend;
1066
1067	// special handling for the Alt (aka. Meta) modifier. pressing
1068	// Alt+[Character] results in Esc+[Character] being sent
1069	// (unless there is an entry defined for this particular combination
1070	// in the keyboard modifier)
1071	bool wantsAltModifier = entry.modifiers() & entry.modifierMask() & Qt::AltModifier;
1072	bool wantsMetaModifier = entry.modifiers() & entry.modifierMask() & Qt::MetaModifier;
1073	bool wantsAnyModifier = entry.state() &
1074	entry.stateMask() & KeyboardTranslator::AnyModifierState;
1075
1076	if ( modifiers & Qt::AltModifier && !(wantsAltModifier \|\| wantsAnyModifier)
1077	&& !event->text().isEmpty() )
1078	{
1079	textToSend.prepend("\033");
1080	}
1081	if ( modifiers & Qt::MetaModifier && !(wantsMetaModifier \|\| wantsAnyModifier)
1082	&& !event->text().isEmpty() )
1083	{
1084	textToSend.prepend("\030@s");
1085	}
1086
1087	if ( entry.command() != KeyboardTranslator::NoCommand )
1088	{
1089	if (entry.command() & KeyboardTranslator::EraseCommand) {
1090	textToSend += eraseChar();
1091	} else {
1092	Q_EMIT handleCommandFromKeyboard(entry.command());
1093	}
1094
1095	// TODO command handling
1096	}
1097	else if ( !entry.text().isEmpty() )
1098	{
1099	textToSend += _codec->fromUnicode(QString::fromUtf8(entry.text(true,modifiers)));
1100	}
1101	else if((modifiers & KeyboardTranslator::CTRL_MOD) && event->key() >= 0x40 && event->key() < 0x5f) {
1102	textToSend += (event->key() & 0x1f);
1103	}
1104	else if(event->key() == Qt::Key_Tab) {
1105	textToSend += 0x09;
1106	}
1107	else if (event->key() == Qt::Key_PageUp) {
1108	textToSend += "\033[5~";
1109	}
1110	else if (event->key() == Qt::Key_PageDown) {
1111	textToSend += "\033[6~";
1112	}
1113	else {
1114	textToSend += _codec->fromUnicode(event->text());
1115	}
1116
1117	if (!fromPaste && textToSend.length()) {
1118	Q_EMIT outputFromKeypressEvent();
1119	}
1120	Q_EMIT sendData( textToSend.constData() , textToSend.length() );
1121	}
1122	else
1123	{
1124	// print an error message to the terminal if no key translator has been
1125	// set
1126	QString translatorError = tr("No keyboard translator available. "
1127	"The information needed to convert key presses "
1128	"into characters to send to the terminal "
1129	"is missing.");
1130	reset();
1131	receiveData( translatorError.toUtf8().constData() , translatorError.length() );
1132	}
1133	}
1134
1135	/* ------------------------------------------------------------------------- */
1136	/* */
1137	/* VT100 Charsets */
1138	/* */
1139	/* ------------------------------------------------------------------------- */
1140
1141	// Character Set Conversion ------------------------------------------------ --
1142
1143	/*
1144	The processing contains a VT100 specific code translation layer.
1145	It's still in use and mainly responsible for the line drawing graphics.
1146
1147	These and some other glyphs are assigned to codes (0x5f-0xfe)
1148	normally occupied by the latin letters. Since this codes also
1149	appear within control sequences, the extra code conversion
1150	does not permute with the tokenizer and is placed behind it
1151	in the pipeline. It only applies to tokens, which represent
1152	plain characters.
1153
1154	This conversion it eventually continued in TerminalDisplay.C, since
1155	it might involve VT100 enhanced fonts, which have these
1156	particular glyphs allocated in (0x00-0x1f) in their code page.
1157	*/
1158
1159	#define CHARSET _charset[_currentScreen==_screen[1]]
1160
1161	// Apply current character map.
1162
1163	wchar_t Vt102Emulation::applyCharset(wchar_t c)
1164	{
1165	if (CHARSET.graphic && 0x5f <= c && c <= 0x7e) return vt100_graphics[c-0x5f];
1166	if (CHARSET.pound && c == '#' ) return 0xa3; //This mode is obsolete
1167	return c;
1168	}
1169
1170	/*
1171	"Charset" related part of the emulation state.
1172	This configures the VT100 charset filter.
1173
1174	While most operation work on the current _screen,
1175	the following two are different.
1176	*/
1177
1178	void Vt102Emulation::resetCharset(int scrno)
1179	{
1180	_charset[scrno].cu_cs = 0;
1181	qstrncpy(_charset[scrno].charset,"BBBB",4);
1182	_charset[scrno].sa_graphic = false;
1183	_charset[scrno].sa_pound = false;
1184	_charset[scrno].graphic = false;
1185	_charset[scrno].pound = false;
1186	}
1187
1188	void Vt102Emulation::setCharset(int n, int cs) // on both screens.
1189	{
1190	_charset[0].charset[n&3] = cs; useCharset(_charset[0].cu_cs);
1191	_charset[1].charset[n&3] = cs; useCharset(_charset[1].cu_cs);
1192	}
1193
1194	void Vt102Emulation::setAndUseCharset(int n, int cs)
1195	{
1196	CHARSET.charset[n&3] = cs;
1197	useCharset(n&3);
1198	}
1199
1200	void Vt102Emulation::useCharset(int n)
1201	{
1202	CHARSET.cu_cs = n&3;
1203	CHARSET.graphic = (CHARSET.charset[n&3] == '0');
1204	CHARSET.pound = (CHARSET.charset[n&3] == 'A'); //This mode is obsolete
1205	}
1206
1207	void Vt102Emulation::setDefaultMargins()
1208	{
1209	_screen[0]->setDefaultMargins();
1210	_screen[1]->setDefaultMargins();
1211	}
1212
1213	void Vt102Emulation::setMargins(int t, int b)
1214	{
1215	_screen[0]->setMargins(t, b);
1216	_screen[1]->setMargins(t, b);
1217	}
1218
1219	void Vt102Emulation::saveCursor()
1220	{
1221	CHARSET.sa_graphic = CHARSET.graphic;
1222	CHARSET.sa_pound = CHARSET.pound; //This mode is obsolete
1223	// we are not clear about these
1224	//sa_charset = charsets[cScreen->_charset];
1225	//sa_charset_num = cScreen->_charset;
1226	_currentScreen->saveCursor();
1227	}
1228
1229	void Vt102Emulation::restoreCursor()
1230	{
1231	CHARSET.graphic = CHARSET.sa_graphic;
1232	CHARSET.pound = CHARSET.sa_pound; //This mode is obsolete
1233	_currentScreen->restoreCursor();
1234	}
1235
1236	/* ------------------------------------------------------------------------- */
1237	/* */
1238	/* Mode Operations */
1239	/* */
1240	/* ------------------------------------------------------------------------- */
1241
1242	/*
1243	Some of the emulations state is either added to the state of the screens.
1244
1245	This causes some scoping problems, since different emulations choose to
1246	located the mode either to the current _screen or to both.
1247
1248	For strange reasons, the extend of the rendition attributes ranges over
1249	all screens and not over the actual _screen.
1250
1251	We decided on the precise precise extend, somehow.
1252	*/
1253
1254	// "Mode" related part of the state. These are all booleans.
1255
1256	void Vt102Emulation::resetModes()
1257	{
1258	// MODE_Allow132Columns is not reset here
1259	// to match Xterm's behaviour (see Xterm's VTReset() function)
1260
1261	resetMode(MODE_132Columns); saveMode(MODE_132Columns);
1262	resetMode(MODE_Mouse1000); saveMode(MODE_Mouse1000);
1263	resetMode(MODE_Mouse1001); saveMode(MODE_Mouse1001);
1264	resetMode(MODE_Mouse1002); saveMode(MODE_Mouse1002);
1265	resetMode(MODE_Mouse1003); saveMode(MODE_Mouse1003);
1266	resetMode(MODE_Mouse1005); saveMode(MODE_Mouse1005);
1267	resetMode(MODE_Mouse1006); saveMode(MODE_Mouse1006);
1268	resetMode(MODE_Mouse1015); saveMode(MODE_Mouse1015);
1269	resetMode(MODE_BracketedPaste); saveMode(MODE_BracketedPaste);
1270
1271	resetMode(MODE_AppScreen); saveMode(MODE_AppScreen);
1272	resetMode(MODE_AppCuKeys); saveMode(MODE_AppCuKeys);
1273	resetMode(MODE_AppKeyPad); saveMode(MODE_AppKeyPad);
1274	resetMode(MODE_NewLine);
1275	setMode(MODE_Ansi);
1276	}
1277
1278	void Vt102Emulation::setMode(int m)
1279	{
1280	_currentModes.mode[m] = true;
1281	switch (m)
1282	{
1283	case MODE_132Columns:
1284	if (getMode(MODE_Allow132Columns))
1285	clearScreenAndSetColumns(132);
1286	else
1287	_currentModes.mode[m] = false;
1288	break;
1289	case MODE_Mouse1000:
1290	case MODE_Mouse1001:
1291	case MODE_Mouse1002:
1292	case MODE_Mouse1003:
1293	emit programUsesMouseChanged(false);
1294	break;
1295
1296	case MODE_BracketedPaste:
1297	emit programBracketedPasteModeChanged(true);
1298	break;
1299
1300	case MODE_AppScreen : _screen[1]->clearSelection();
1301	setScreen(1);
1302	break;
1303	}
1304	if (m < MODES_SCREEN \|\| m == MODE_NewLine)
1305	{
1306	_screen[0]->setMode(m);
1307	_screen[1]->setMode(m);
1308	}
1309	}
1310
1311	void Vt102Emulation::resetMode(int m)
1312	{
1313	_currentModes.mode[m] = false;
1314	switch (m)
1315	{
1316	case MODE_132Columns:
1317	if (getMode(MODE_Allow132Columns))
1318	clearScreenAndSetColumns(80);
1319	break;
1320	case MODE_Mouse1000 :
1321	case MODE_Mouse1001 :
1322	case MODE_Mouse1002 :
1323	case MODE_Mouse1003 :
1324	emit programUsesMouseChanged(true);
1325	break;
1326
1327	case MODE_BracketedPaste:
1328	emit programBracketedPasteModeChanged(false);
1329	break;
1330
1331	case MODE_AppScreen :
1332	_screen[0]->clearSelection();
1333	setScreen(0);
1334	break;
1335	}
1336	if (m < MODES_SCREEN \|\| m == MODE_NewLine)
1337	{
1338	_screen[0]->resetMode(m);
1339	_screen[1]->resetMode(m);
1340	}
1341	}
1342
1343	void Vt102Emulation::saveMode(int m)
1344	{
1345	_savedModes.mode[m] = _currentModes.mode[m];
1346	}
1347
1348	void Vt102Emulation::restoreMode(int m)
1349	{
1350	if (_savedModes.mode[m])
1351	setMode(m);
1352	else
1353	resetMode(m);
1354	}
1355
1356	bool Vt102Emulation::getMode(int m)
1357	{
1358	return _currentModes.mode[m];
1359	}
1360
1361	char Vt102Emulation::eraseChar() const
1362	{
1363	KeyboardTranslator::Entry entry = _keyTranslator->findEntry(
1364	Qt::Key_Backspace,
1365	Qt::NoModifier,
1366	KeyboardTranslator::NoState);
1367	if ( entry.text().length() > 0 )
1368	return entry.text().at(0);
1369	else
1370	return '\b';
1371	}
1372
1373	void Vt102Emulation::reportDecodingError()
1374	{
1375	if (tokenBufferPos == 0 \|\| ( tokenBufferPos == 1 && (tokenBuffer[0] & 0xff) >= 32) )
1376	return;
1377	qCDebug(qtermwidgetLogger) << "Undecodable sequence:" << QString::fromWCharArray(tokenBuffer, tokenBufferPos);
1378	}
1379
1380	//#include "Vt102Emulation.moc"
1381

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