Diffstat (limited to 'core/apps/embeddedkonsole/TEmuVt102.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | core/apps/embeddedkonsole/TEmuVt102.cpp | 991 |
1 files changed, 991 insertions, 0 deletions
diff --git a/core/apps/embeddedkonsole/TEmuVt102.cpp b/core/apps/embeddedkonsole/TEmuVt102.cpp new file mode 100644 index 0000000..752c49f --- a/dev/null +++ b/core/apps/embeddedkonsole/TEmuVt102.cpp @@ -0,0 +1,991 @@ +/* ------------------------------------------------------------------------- */ +/* */ +/* [TEmuVt102.C] VT102 Terminal Emulation */ +/* */ +/* ------------------------------------------------------------------------- */ +/* */ +/* Copyright (c) 1997,1998 by Lars Doelle <lars.doelle@on-line.de> */ +/* */ +/* This file is part of Konsole - an X terminal for KDE */ +/* */ +/* ------------------------------------------------------------------------- */ +/* */ +/* Ported Konsole to Qt/Embedded */ +/* */ +/* Copyright (C) 2000 by John Ryland <jryland@trolltech.com> */ +/* */ +/* -------------------------------------------------------------------------- */ + +/*! \class TEmuVt102 + + \brief Actual Emulation for Konsole + + \sa TEWidget \sa TEScreen +*/ + +#include "TEmuVt102.h" +#include "TEWidget.h" +#include "TEScreen.h" +#include "keytrans.h" + +#include <stdio.h> +#include <unistd.h> +#include <qkeycode.h> +#include <qtextcodec.h> + + +/* VT102 Terminal Emulation + + This class puts together the screens, the pty and the widget to a + complete terminal emulation. Beside combining it's componentes, it + handles the emulations's protocol. + + This module consists of the following sections: + + - Constructor/Destructor + - Incoming Bytes Event pipeline + - Outgoing Bytes + - Mouse Events + - Keyboard Events + - Modes and Charset State + - Diagnostics +*/ + + +/* ------------------------------------------------------------------------- */ +/* */ +/* Constructor / Destructor */ +/* */ +/* ------------------------------------------------------------------------- */ + +/* + Nothing really intesting happens here. +*/ + +/*! +*/ + +TEmuVt102::TEmuVt102(TEWidget* gui) : TEmulation(gui) +{ + QObject::connect(gui,SIGNAL(mouseSignal(int,int,int)), + this,SLOT(onMouse(int,int,int))); + initTokenizer(); + reset(); +} + +/*! +*/ + +TEmuVt102::~TEmuVt102() +{ +} + +/*! +*/ + +void TEmuVt102::reset() +{ + resetToken(); + resetModes(); + resetCharset(0); screen[0]->reset(); + resetCharset(1); screen[0]->reset(); + setCodec(0); + setKeytrans("linux.keytab"); +} + +/* ------------------------------------------------------------------------- */ +/* */ +/* Processing the incoming byte stream */ +/* */ +/* ------------------------------------------------------------------------- */ + +/* Incoming Bytes Event pipeline + + This section deals with decoding the incoming character stream. + Decoding means here, that the stream is first seperated into `tokens' + which are then mapped to a `meaning' provided as operations by the + `TEScreen' class or by the emulation class itself. + + The pipeline proceeds as follows: + + - Tokenizing the ESC codes (onRcvChar) + - VT100 code page translation of plain characters (applyCharset) + - Interpretation of ESC codes (tau) + + The escape codes and their meaning are described in the + technical reference of this program. +*/ + +// Tokens ------------------------------------------------------------------ -- + +/* + Since the tokens are the central notion if this section, we've put them + in front. They provide the syntactical elements used to represent the + terminals operations as byte sequences. + + They are encodes here into a single machine word, so that we can later + switch over them easily. Depending on the token itself, additional + argument variables are filled with parameter values. + + The tokens are defined below: + + - CHR - Printable characters (32..255 but DEL (=127)) + - CTL - Control characters (0..31 but ESC (= 27), DEL) + - ESC - Escape codes of the form <ESC><CHR but `[]()+*#'> + - ESC_DE - Escape codes of the form <ESC><any of `()+*#%'> C + - CSI_PN - Escape codes of the form <ESC>'[' {Pn} ';' {Pn} C + - CSI_PS - Escape codes of the form <ESC>'[' {Pn} ';' ... C + - CSI_PR - Escape codes of the form <ESC>'[' '?' {Pn} ';' ... C + - VT52 - VT52 escape codes + - <ESC><Chr> + - <ESC>'Y'{Pc}{Pc} + - XTE_HA - Xterm hacks <ESC>`]' {Pn} `;' {Text} <BEL> + note that this is handled differently + + The last two forms allow list of arguments. Since the elements of + the lists are treated individually the same way, they are passed + as individual tokens to the interpretation. Further, because the + meaning of the parameters are names (althought represented as numbers), + they are includes within the token ('N'). + +*/ + +#define TY_CONSTR(T,A,N) ( ((((int)N) & 0xffff) << 16) | ((((int)A) & 0xff) << 8) | (((int)T) & 0xff) ) + +#define TY_CHR___( ) TY_CONSTR(0,0,0) +#define TY_CTL___(A ) TY_CONSTR(1,A,0) +#define TY_ESC___(A ) TY_CONSTR(2,A,0) +#define TY_ESC_CS(A,B) TY_CONSTR(3,A,B) +#define TY_ESC_DE(A ) TY_CONSTR(4,A,0) +#define TY_CSI_PS(A,N) TY_CONSTR(5,A,N) +#define TY_CSI_PN(A ) TY_CONSTR(6,A,0) +#define TY_CSI_PR(A,N) TY_CONSTR(7,A,N) + +#define TY_VT52__(A ) TY_CONSTR(8,A,0) + +// Tokenizer --------------------------------------------------------------- -- + +/* The tokenizers state + + The state is represented by the buffer (pbuf, ppos), + and accompanied by decoded arguments kept in (argv,argc). + Note that they are kept internal in the tokenizer. +*/ + +void TEmuVt102::resetToken() +{ + ppos = 0; argc = 0; argv[0] = 0; argv[1] = 0; +} + +void TEmuVt102::addDigit(int dig) +{ + argv[argc] = 10*argv[argc] + dig; +} + +void TEmuVt102::addArgument() +{ + argc = QMIN(argc+1,MAXARGS-1); + argv[argc] = 0; +} + +void TEmuVt102::pushToToken(int cc) +{ + pbuf[ppos] = cc; + ppos = QMIN(ppos+1,MAXPBUF-1); +} + +// Character Classes used while decoding + +#define CTL 1 +#define CHR 2 +#define CPN 4 +#define DIG 8 +#define SCS 16 +#define GRP 32 + +void TEmuVt102::initTokenizer() +{ int i; UINT8* s; + for(i = 0; i < 256; i++) tbl[ i] = 0; + for(i = 0; i < 32; i++) tbl[ i] |= CTL; + for(i = 32; i < 256; i++) tbl[ i] |= CHR; + for(s = (UINT8*)"@ABCDGHLMPXcdfry"; *s; s++) tbl[*s] |= CPN; + for(s = (UINT8*)"0123456789" ; *s; s++) tbl[*s] |= DIG; + for(s = (UINT8*)"()+*%" ; *s; s++) tbl[*s] |= SCS; + for(s = (UINT8*)"()+*#[]%" ; *s; s++) tbl[*s] |= GRP; + resetToken(); +} + +/* Ok, here comes the nasty part of the decoder. + + Instead of keeping an explicit state, we deduce it from the + token scanned so far. It is then immediately combined with + the current character to form a scanning decision. + + This is done by the following defines. + + - P is the length of the token scanned so far. + - L (often P-1) is the position on which contents we base a decision. + - C is a character or a group of characters (taken from 'tbl'). + + Note that they need to applied in proper order. +*/ + +#define lec(P,L,C) (p == (P) && s[(L)] == (C)) +#define lun( ) (p == 1 && cc >= 32 ) +#define les(P,L,C) (p == (P) && s[L] < 256 && (tbl[s[(L)]] & (C)) == (C)) +#define eec(C) (p >= 3 && cc == (C)) +#define ees(C) (p >= 3 && cc < 256 && (tbl[ cc ] & (C)) == (C)) +#define eps(C) (p >= 3 && s[2] != '?' && cc < 256 && (tbl[ cc ] & (C)) == (C)) +#define epp( ) (p >= 3 && s[2] == '?' ) +#define egt( ) (p == 3 && s[2] == '>' ) +#define Xpe (ppos>=2 && pbuf[1] == ']' ) +#define Xte (Xpe && cc == 7 ) +#define ces(C) ( cc < 256 && (tbl[ cc ] & (C)) == (C) && !Xte) + +#define ESC 27 +#define CNTL(c) ((c)-'@') + +// process an incoming unicode character + +void TEmuVt102::onRcvChar(int cc) +{ int i; + + if (cc == 127) return; //VT100: ignore. + + if (ces( CTL)) + { // DEC HACK ALERT! Control Characters are allowed *within* esc sequences in VT100 + // This means, they do neither a resetToken nor a pushToToken. Some of them, do + // of course. Guess this originates from a weakly layered handling of the X-on + // X-off protocol, which comes really below this level. + if (cc == CNTL('X') || cc == CNTL('Z') || cc == ESC) resetToken(); //VT100: CAN or SUB + if (cc != ESC) { tau( TY_CTL___(cc+'@' ), 0, 0); return; } + } + + pushToToken(cc); // advance the state + + int* s = pbuf; + int p = ppos; + + if (getMode(MODE_Ansi)) // decide on proper action + { + if (lec(1,0,ESC)) { return; } + if (les(2,1,GRP)) { return; } + if (Xte ) { XtermHack(); resetToken(); return; } + if (Xpe ) { return; } + if (lec(3,2,'?')) { return; } + if (lec(3,2,'>')) { return; } + if (lun( )) { tau( TY_CHR___(), applyCharset(cc), 0); resetToken(); return; } + if (lec(2,0,ESC)) { tau( TY_ESC___(s[1]), 0, 0); resetToken(); return; } + if (les(3,1,SCS)) { tau( TY_ESC_CS(s[1],s[2]), 0, 0); resetToken(); return; } + if (lec(3,1,'#')) { tau( TY_ESC_DE(s[2]), 0, 0); resetToken(); return; } +// if (egt( )) { tau( TY_CSI_PG(cc ), '>', 0); resetToken(); return; } + if (eps( CPN)) { tau( TY_CSI_PN(cc), argv[0],argv[1]); resetToken(); return; } + if (ees( DIG)) { addDigit(cc-'0'); return; } + if (eec( ';')) { addArgument(); return; } + for (i=0;i<=argc;i++) + if (epp( )) tau( TY_CSI_PR(cc,argv[i]), 0, 0); else + tau( TY_CSI_PS(cc,argv[i]), 0, 0); + resetToken(); + } + else // mode VT52 + { + if (lec(1,0,ESC)) return; + if (les(1,0,CHR)) { tau( TY_CHR___( ), s[0], 0); resetToken(); return; } + if (lec(2,1,'Y')) return; + if (lec(3,1,'Y')) return; + if (p < 4) { tau( TY_VT52__(s[1] ), 0, 0); resetToken(); return; } + tau( TY_VT52__(s[1] ), s[2],s[3]); resetToken(); return; + } +} + +void TEmuVt102::XtermHack() +{ int i,arg = 0; + for (i = 2; i < ppos && '0'<=pbuf[i] && pbuf[i]<'9' ; i++) + arg = 10*arg + (pbuf[i]-'0'); + if (pbuf[i] != ';') { ReportErrorToken(); return; } + QChar *str = new QChar[ppos-i-2]; + for (int j = 0; j < ppos-i-2; j++) str[j] = pbuf[i+1+j]; + QString unistr(str,ppos-i-2); + // arg == 1 doesn't change the title. In XTerm it only changes the icon name + // (btw: arg=0 changes title and icon, arg=1 only icon, arg=2 only title + if (arg == 0 || arg == 2) emit changeTitle(arg,unistr); + delete [] str; +} + +// Interpreting Codes --------------------------------------------------------- + +/* + Now that the incoming character stream is properly tokenized, + meaning is assigned to them. These are either operations of + the current screen, or of the emulation class itself. + + The token to be interpreteted comes in as a machine word + possibly accompanied by two parameters. + + Likewise, the operations assigned to, come with up to two + arguments. One could consider to make up a proper table + from the function below. + + The technical reference manual provides more informations + about this mapping. +*/ + +void TEmuVt102::tau( int token, int p, int q ) +{ +//scan_buffer_report(); +//if (token == TY_CHR___()) printf("%c",p); else +//printf("tau(%d,%d,%d, %d,%d)\n",(token>>0)&0xff,(token>>8)&0xff,(token>>16)&0xffff,p,q); + switch (token) + { + + case TY_CHR___( ) : scr->ShowCharacter (p ); break; //UTF16 + + // 127 DEL : ignored on input + + case TY_CTL___('@' ) : /* NUL: ignored */ break; + case TY_CTL___('A' ) : /* SOH: ignored */ break; + case TY_CTL___('B' ) : /* STX: ignored */ break; + case TY_CTL___('C' ) : /* ETX: ignored */ break; + case TY_CTL___('D' ) : /* EOT: ignored */ break; + case TY_CTL___('E' ) : reportAnswerBack ( ); break; //VT100 + case TY_CTL___('F' ) : /* ACK: ignored */ break; + case TY_CTL___('G' ) : gui->Bell ( ); break; //VT100 + case TY_CTL___('H' ) : scr->BackSpace ( ); break; //VT100 + case TY_CTL___('I' ) : scr->Tabulate ( ); break; //VT100 + case TY_CTL___('J' ) : scr->NewLine ( ); break; //VT100 + case TY_CTL___('K' ) : scr->NewLine ( ); break; //VT100 + case TY_CTL___('L' ) : scr->NewLine ( ); break; //VT100 + case TY_CTL___('M' ) : scr->Return ( ); break; //VT100 + + case TY_CTL___('N' ) : useCharset ( 1); break; //VT100 + case TY_CTL___('O' ) : useCharset ( 0); break; //VT100 + + case TY_CTL___('P' ) : /* DLE: ignored */ break; + case TY_CTL___('Q' ) : /* DC1: XON continue */ break; //VT100 + case TY_CTL___('R' ) : /* DC2: ignored */ break; + case TY_CTL___('S' ) : /* DC3: XOFF halt */ break; //VT100 + case TY_CTL___('T' ) : /* DC4: ignored */ break; + case TY_CTL___('U' ) : /* NAK: ignored */ break; + case TY_CTL___('V' ) : /* SYN: ignored */ break; + case TY_CTL___('W' ) : /* ETB: ignored */ break; + case TY_CTL___('X' ) : scr->ShowCharacter ( 0x2592); break; //VT100 + case TY_CTL___('Y' ) : /* EM : ignored */ break; + case TY_CTL___('Z' ) : scr->ShowCharacter ( 0x2592); break; //VT100 + case TY_CTL___('[' ) : /* ESC: cannot be seen here. */ break; + case TY_CTL___('\\' ) : /* FS : ignored */ break; + case TY_CTL___(']' ) : /* GS : ignored */ break; + case TY_CTL___('^' ) : /* RS : ignored */ break; + case TY_CTL___('_' ) : /* US : ignored */ break; + + case TY_ESC___('D' ) : scr->index ( ); break; //VT100 + case TY_ESC___('E' ) : scr->NextLine ( ); break; //VT100 + case TY_ESC___('H' ) : scr->changeTabStop (TRUE ); break; //VT100 + case TY_ESC___('M' ) : scr->reverseIndex ( ); break; //VT100 + case TY_ESC___('Z' ) : reportTerminalType ( ); break; + case TY_ESC___('c' ) : reset ( ); break; + + case TY_ESC___('n' ) : useCharset ( 2); break; + case TY_ESC___('o' ) : useCharset ( 3); break; + case TY_ESC___('7' ) : saveCursor ( ); break; + case TY_ESC___('8' ) : restoreCursor ( ); break; + + case TY_ESC___('=' ) : setMode (MODE_AppKeyPad); break; + case TY_ESC___('>' ) : resetMode (MODE_AppKeyPad); break; + case TY_ESC___('<' ) : setMode (MODE_Ansi ); break; //VT100 + + case TY_ESC_CS('(', '0') : setCharset (0, '0'); break; //VT100 + case TY_ESC_CS('(', 'A') : setCharset (0, 'A'); break; //VT100 + case TY_ESC_CS('(', 'B') : setCharset (0, 'B'); break; //VT100 + + case TY_ESC_CS(')', '0') : setCharset (1, '0'); break; //VT100 + case TY_ESC_CS(')', 'A') : setCharset (1, 'A'); break; //VT100 + case TY_ESC_CS(')', 'B') : setCharset (1, 'B'); break; //VT100 + + case TY_ESC_CS('*', '0') : setCharset (2, '0'); break; //VT100 + case TY_ESC_CS('*', 'A') : setCharset (2, 'A'); break; //VT100 + case TY_ESC_CS('*', 'B') : setCharset (2, 'B'); break; //VT100 + + case TY_ESC_CS('+', '0') : setCharset (3, '0'); break; //VT100 + case TY_ESC_CS('+', 'A') : setCharset (3, 'A'); break; //VT100 + case TY_ESC_CS('+', 'B') : setCharset (3, 'B'); break; //VT100 + + case TY_ESC_CS('%', 'G') : setCodec (1 ); break; //LINUX + case TY_ESC_CS('%', '@') : setCodec (0 ); break; //LINUX + + case TY_ESC_DE('3' ) : /* IGNORED: double high, top half */ break; + case TY_ESC_DE('4' ) : /* IGNORED: double high, bottom half */ break; + case TY_ESC_DE('5' ) : /* IGNORED: single width, single high*/ break; + case TY_ESC_DE('6' ) : /* IGNORED: double width, single high*/ break; + case TY_ESC_DE('8' ) : scr->helpAlign ( ); break; + + case TY_CSI_PS('K', 0) : scr->clearToEndOfLine ( ); break; + case TY_CSI_PS('K', 1) : scr->clearToBeginOfLine ( ); break; + case TY_CSI_PS('K', 2) : scr->clearEntireLine ( ); break; + case TY_CSI_PS('J', 0) : scr->clearToEndOfScreen ( ); break; + case TY_CSI_PS('J', 1) : scr->clearToBeginOfScreen ( ); break; + case TY_CSI_PS('J', 2) : scr->clearEntireScreen ( ); break; + case TY_CSI_PS('g', 0) : scr->changeTabStop (FALSE ); break; //VT100 + case TY_CSI_PS('g', 3) : scr->clearTabStops ( ); break; //VT100 + case TY_CSI_PS('h', 4) : scr-> setMode (MODE_Insert ); break; + case TY_CSI_PS('h', 20) : setMode (MODE_NewLine ); break; + case TY_CSI_PS('i', 0) : /* IGNORE: attached printer */ break; //VT100 + case TY_CSI_PS('l', 4) : scr-> resetMode (MODE_Insert ); break; + case TY_CSI_PS('l', 20) : resetMode (MODE_NewLine ); break; + + case TY_CSI_PS('m', 0) : scr->setDefaultRendition ( ); break; + case TY_CSI_PS('m', 1) : scr-> setRendition (RE_BOLD ); break; //VT100 + case TY_CSI_PS('m', 4) : scr-> setRendition (RE_UNDERLINE); break; //VT100 + case TY_CSI_PS('m', 5) : scr-> setRendition (RE_BLINK ); break; //VT100 + case TY_CSI_PS('m', 7) : scr-> setRendition (RE_REVERSE ); break; + case TY_CSI_PS('m', 10) : /* IGNORED: mapping related */ break; //LINUX + case TY_CSI_PS('m', 11) : /* IGNORED: mapping related */ break; //LINUX + case TY_CSI_PS('m', 12) : /* IGNORED: mapping related */ break; //LINUX + case TY_CSI_PS('m', 22) : scr->resetRendition (RE_BOLD ); break; + case TY_CSI_PS('m', 24) : scr->resetRendition (RE_UNDERLINE); break; + case TY_CSI_PS('m', 25) : scr->resetRendition (RE_BLINK ); break; + case TY_CSI_PS('m', 27) : scr->resetRendition (RE_REVERSE ); break; + + case TY_CSI_PS('m', 30) : scr->setForeColor ( 0); break; + case TY_CSI_PS('m', 31) : scr->setForeColor ( 1); break; + case TY_CSI_PS('m', 32) : scr->setForeColor ( 2); break; + case TY_CSI_PS('m', 33) : scr->setForeColor ( 3); break; + case TY_CSI_PS('m', 34) : scr->setForeColor ( 4); break; + case TY_CSI_PS('m', 35) : scr->setForeColor ( 5); break; + case TY_CSI_PS('m', 36) : scr->setForeColor ( 6); break; + case TY_CSI_PS('m', 37) : scr->setForeColor ( 7); break; + case TY_CSI_PS('m', 39) : scr->setForeColorToDefault( ); break; + + case TY_CSI_PS('m', 40) : scr->setBackColor ( 0); break; + case TY_CSI_PS('m', 41) : scr->setBackColor ( 1); break; + case TY_CSI_PS('m', 42) : scr->setBackColor ( 2); break; + case TY_CSI_PS('m', 43) : scr->setBackColor ( 3); break; + case TY_CSI_PS('m', 44) : scr->setBackColor ( 4); break; + case TY_CSI_PS('m', 45) : scr->setBackColor ( 5); break; + case TY_CSI_PS('m', 46) : scr->setBackColor ( 6); break; + case TY_CSI_PS('m', 47) : scr->setBackColor ( 7); break; + case TY_CSI_PS('m', 49) : scr->setBackColorToDefault( ); break; + + case TY_CSI_PS('m', 90) : scr->setForeColor ( 8); break; + case TY_CSI_PS('m', 91) : scr->setForeColor ( 9); break; + case TY_CSI_PS('m', 92) : scr->setForeColor ( 10); break; + case TY_CSI_PS('m', 93) : scr->setForeColor ( 11); break; + case TY_CSI_PS('m', 94) : scr->setForeColor ( 12); break; + case TY_CSI_PS('m', 95) : scr->setForeColor ( 13); break; + case TY_CSI_PS('m', 96) : scr->setForeColor ( 14); break; + case TY_CSI_PS('m', 97) : scr->setForeColor ( 15); break; + + case TY_CSI_PS('m', 100) : scr->setBackColor ( 8); break; + case TY_CSI_PS('m', 101) : scr->setBackColor ( 9); break; + case TY_CSI_PS('m', 102) : scr->setBackColor ( 10); break; + case TY_CSI_PS('m', 103) : scr->setBackColor ( 11); break; + case TY_CSI_PS('m', 104) : scr->setBackColor ( 12); break; + case TY_CSI_PS('m', 105) : scr->setBackColor ( 13); break; + case TY_CSI_PS('m', 106) : scr->setBackColor ( 14); break; + case TY_CSI_PS('m', 107) : scr->setBackColor ( 15); break; + + case TY_CSI_PS('n', 5) : reportStatus ( ); break; + case TY_CSI_PS('n', 6) : reportCursorPosition ( ); break; + case TY_CSI_PS('q', 0) : /* IGNORED: LEDs off */ break; //VT100 + case TY_CSI_PS('q', 1) : /* IGNORED: LED1 on */ break; //VT100 + case TY_CSI_PS('q', 2) : /* IGNORED: LED2 on */ break; //VT100 + case TY_CSI_PS('q', 3) : /* IGNORED: LED3 on */ break; //VT100 + case TY_CSI_PS('q', 4) : /* IGNORED: LED4 on */ break; //VT100 + case TY_CSI_PS('x', 0) : reportTerminalParms ( 2); break; //VT100 + case TY_CSI_PS('x', 1) : reportTerminalParms ( 3); break; //VT100 + + case TY_CSI_PN('@' ) : scr->insertChars (p ); break; + case TY_CSI_PN('A' ) : scr->cursorUp (p ); break; //VT100 + case TY_CSI_PN('B' ) : scr->cursorDown (p ); break; //VT100 + case TY_CSI_PN('C' ) : scr->cursorRight (p ); break; //VT100 + case TY_CSI_PN('D' ) : scr->cursorLeft (p ); break; //VT100 + case TY_CSI_PN('G' ) : scr->setCursorX (p ); break; //LINUX + case TY_CSI_PN('H' ) : scr->setCursorYX (p, q); break; //VT100 + case TY_CSI_PN('L' ) : scr->insertLines (p ); break; + case TY_CSI_PN('M' ) : scr->deleteLines (p ); break; + case TY_CSI_PN('P' ) : scr->deleteChars (p ); break; + case TY_CSI_PN('X' ) : scr->eraseChars (p ); break; + case TY_CSI_PN('c' ) : reportTerminalType ( ); break; //VT100 + case TY_CSI_PN('d' ) : scr->setCursorY (p ); break; //LINUX + case TY_CSI_PN('f' ) : scr->setCursorYX (p, q); break; //VT100 + case TY_CSI_PN('r' ) : scr->setMargins (p, q); break; //VT100 + case TY_CSI_PN('y' ) : /* IGNORED: Confidence test */ break; //VT100 + + case TY_CSI_PR('h', 1) : setMode (MODE_AppCuKeys); break; //VT100 + case TY_CSI_PR('l', 1) : resetMode (MODE_AppCuKeys); break; //VT100 + case TY_CSI_PR('s', 1) : saveMode (MODE_AppCuKeys); break; //FIXME + case TY_CSI_PR('r', 1) : restoreMode (MODE_AppCuKeys); break; //FIXME + + case TY_CSI_PR('l', 2) : resetMode (MODE_Ansi ); break; //VT100 + + case TY_CSI_PR('h', 3) : setColumns ( 132); break; //VT100 + case TY_CSI_PR('l', 3) : setColumns ( 80); break; //VT100 + + case TY_CSI_PR('h', 4) : /* IGNORED: soft scrolling */ break; //VT100 + case TY_CSI_PR('l', 4) : /* IGNORED: soft scrolling */ break; //VT100 + + case TY_CSI_PR('h', 5) : scr-> setMode (MODE_Screen ); break; //VT100 + case TY_CSI_PR('l', 5) : scr-> resetMode (MODE_Screen ); break; //VT100 + + case TY_CSI_PR('h', 6) : scr-> setMode (MODE_Origin ); break; //VT100 + case TY_CSI_PR('l', 6) : scr-> resetMode (MODE_Origin ); break; //VT100 + case TY_CSI_PR('s', 6) : scr-> saveMode (MODE_Origin ); break; //FIXME + case TY_CSI_PR('r', 6) : scr->restoreMode (MODE_Origin ); break; //FIXME + + case TY_CSI_PR('h', 7) : scr-> setMode (MODE_Wrap ); break; //VT100 + case TY_CSI_PR('l', 7) : scr-> resetMode (MODE_Wrap ); break; //VT100 + case TY_CSI_PR('s', 7) : scr-> saveMode (MODE_Wrap ); break; //FIXME + case TY_CSI_PR('r', 7) : scr->restoreMode (MODE_Wrap ); break; //FIXME + + case TY_CSI_PR('h', 8) : /* IGNORED: autorepeat on */ break; //VT100 + case TY_CSI_PR('l', 8) : /* IGNORED: autorepeat off */ break; //VT100 + + case TY_CSI_PR('h', 9) : /* IGNORED: interlace */ break; //VT100 + case TY_CSI_PR('l', 9) : /* IGNORED: interlace */ break; //VT100 + + case TY_CSI_PR('h', 25) : setMode (MODE_Cursor ); break; //VT100 + case TY_CSI_PR('l', 25) : resetMode (MODE_Cursor ); break; //VT100 + + case TY_CSI_PR('h', 41) : /* IGNORED: obsolete more(1) fix */ break; //XTERM + case TY_CSI_PR('l', 41) : /* IGNORED: obsolete more(1) fix */ break; //XTERM + case TY_CSI_PR('s', 41) : /* IGNORED: obsolete more(1) fix */ break; //XTERM + case TY_CSI_PR('r', 41) : /* IGNORED: obsolete more(1) fix */ break; //XTERM + + case TY_CSI_PR('h', 47) : setMode (MODE_AppScreen); break; //VT100 + case TY_CSI_PR('l', 47) : resetMode (MODE_AppScreen); break; //VT100 + + case TY_CSI_PR('h', 1000) : setMode (MODE_Mouse1000); break; //XTERM + case TY_CSI_PR('l', 1000) : resetMode (MODE_Mouse1000); break; //XTERM + case TY_CSI_PR('s', 1000) : saveMode (MODE_Mouse1000); break; //XTERM + case TY_CSI_PR('r', 1000) : restoreMode (MODE_Mouse1000); break; //XTERM + + case TY_CSI_PR('h', 1001) : /* IGNORED: hilite mouse tracking */ break; //XTERM + case TY_CSI_PR('l', 1001) : /* IGNORED: hilite mouse tracking */ break; //XTERM + case TY_CSI_PR('s', 1001) : /* IGNORED: hilite mouse tracking */ break; //XTERM + case TY_CSI_PR('r', 1001) : /* IGNORED: hilite mouse tracking */ break; //XTERM + + case TY_CSI_PR('h', 1047) : setMode (MODE_AppScreen); break; //XTERM + case TY_CSI_PR('l', 1047) : resetMode (MODE_AppScreen); break; //XTERM + + //FIXME: Unitoken: save translations + case TY_CSI_PR('h', 1048) : saveCursor ( ); break; //XTERM + case TY_CSI_PR('l', 1048) : restoreCursor ( ); break; //XTERM + + //FIXME: every once new sequences like this pop up in xterm. + // Here's a guess of what they could mean. + case TY_CSI_PR('h', 1049) : setMode (MODE_AppScreen); break; //XTERM + case TY_CSI_PR('l', 1049) : resetMode (MODE_AppScreen); break; //XTERM + + //FIXME: when changing between vt52 and ansi mode evtl do some resetting. + case TY_VT52__('A' ) : scr->cursorUp ( 1); break; //VT52 + case TY_VT52__('B' ) : scr->cursorDown ( 1); break; //VT52 + case TY_VT52__('C' ) : scr->cursorRight ( 1); break; //VT52 + case TY_VT52__('D' ) : scr->cursorLeft ( 1); break; //VT52 + + case TY_VT52__('F' ) : setAndUseCharset (0, '0'); break; //VT52 + case TY_VT52__('G' ) : setAndUseCharset (0, 'B'); break; //VT52 + + case TY_VT52__('H' ) : scr->setCursorYX (1,1 ); break; //VT52 + case TY_VT52__('I' ) : scr->reverseIndex ( ); break; //VT52 + case TY_VT52__('J' ) : scr->clearToEndOfScreen ( ); break; //VT52 + case TY_VT52__('K' ) : scr->clearToEndOfLine ( ); break; //VT52 + case TY_VT52__('Y' ) : scr->setCursorYX (p-31,q-31 ); break; //VT52 + case TY_VT52__('Z' ) : reportTerminalType ( ); break; //VT52 + case TY_VT52__('<' ) : setMode (MODE_Ansi ); break; //VT52 + case TY_VT52__('=' ) : setMode (MODE_AppKeyPad); break; //VT52 + case TY_VT52__('>' ) : resetMode (MODE_AppKeyPad); break; //VT52 + + default : ReportErrorToken(); break; + }; +} + +/* ------------------------------------------------------------------------- */ +/* */ +/* Terminal to Host protocol */ +/* */ +/* ------------------------------------------------------------------------- */ + +/* + Outgoing bytes originate from several sources: + + - Replies to Enquieries. + - Mouse Events + - Keyboard Events +*/ + +/*! +*/ + +void TEmuVt102::sendString(const char* s) +{ + emit sndBlock(s,strlen(s)); +} + +// Replies ----------------------------------------------------------------- -- + +// This section copes with replies send as response to an enquiery control code. + +/*! +*/ + +void TEmuVt102::reportCursorPosition() +{ char tmp[20]; + sprintf(tmp,"\033[%d;%dR",scr->getCursorY()+1,scr->getCursorX()+1); + sendString(tmp); +} + +/* + What follows here is rather obsolete and faked stuff. + The correspondent enquieries are neverthenless issued. +*/ + +/*! +*/ + +void TEmuVt102::reportTerminalType() +{ +//FIXME: should change? + if (getMode(MODE_Ansi)) +// sendString("\033[?1;2c"); // I'm a VT100 with AP0 //FIXME: send only in response to ^[[0c + sendString("\033[>0;115;0c"); // I'm a VT220 //FIXME: send only in response to ^[[>c + else + sendString("\033/Z"); // I'm a VT52 +} + +void TEmuVt102::reportTerminalParms(int p) +// DECREPTPARM +{ char tmp[100]; + sprintf(tmp,"\033[%d;1;1;112;112;1;0x",p); // not really true. + sendString(tmp); +} + +/*! +*/ + +void TEmuVt102::reportStatus() +{ + sendString("\033[0n"); //VT100. Device status report. 0 = Ready. +} + +/*! +*/ + +#define ANSWER_BACK "" // This is really obsolete VT100 stuff. + +void TEmuVt102::reportAnswerBack() +{ + sendString(ANSWER_BACK); +} + +// Mouse Handling ---------------------------------------------------------- -- + +/*! + Mouse clicks are possibly reported to the client + application if it has issued interest in them. + They are normally consumed by the widget for copy + and paste, but may be propagated from the widget + when gui->setMouseMarks is set via setMode(MODE_Mouse1000). + + `x',`y' are 1-based. + `ev' (event) indicates the button pressed (0-2) + or a general mouse release (3). +*/ + +void TEmuVt102::onMouse( int cb, int cx, int cy ) +{ char tmp[20]; + if (!connected) return; + sprintf(tmp,"\033[M%c%c%c",cb+040,cx+040,cy+040); + sendString(tmp); +} + +// Keyboard Handling ------------------------------------------------------- -- + +#define encodeMode(M,B) BITS(B,getMode(M)) +#define encodeStat(M,B) BITS(B,((ev->state() & (M)) == (M))) + +/* + Keyboard event handling has been simplified somewhat by pushing + the complications towards a configuration file [see KeyTrans class]. +*/ + +void TEmuVt102::onKeyPress( QKeyEvent* ev ) +{ + if (!connected) return; // someone else gets the keys + +//printf("State/Key: 0x%04x 0x%04x (%d,%d)\n",ev->state(),ev->key(),ev->text().length(),ev->text().length()?ev->text().ascii()[0]:0); + + // revert to non-history when typing + if (scr->getHistCursor() != scr->getHistLines()); + scr->setHistCursor(scr->getHistLines()); + + // lookup in keyboard translation table ... + int cmd; const char* txt; int len; + if (keytrans->findEntry(ev->key(), encodeMode(MODE_NewLine , BITS_NewLine ) + // OLD, + encodeMode(MODE_Ansi , BITS_Ansi ) + // OBSOLETE, + encodeMode(MODE_AppCuKeys, BITS_AppCuKeys ) + // VT100 stuff + encodeStat(ControlButton , BITS_Control ) + + encodeStat(ShiftButton , BITS_Shift ) + + encodeStat(AltButton , BITS_Alt ), + &cmd, &txt, &len )) +//printf("cmd: %d, %s, %d\n",cmd,txt,len); + switch(cmd) // ... and execute if found. + { + case CMD_emitSelection : gui->emitSelection(); return; + case CMD_scrollPageUp : gui->doScroll(-gui->Lines()/2); return; + case CMD_scrollPageDown : gui->doScroll(+gui->Lines()/2); return; + case CMD_scrollLineUp : gui->doScroll(-1 ); return; + case CMD_scrollLineDown : gui->doScroll(+1 ); return; + case CMD_send : emit sndBlock(txt,len); return; + case CMD_prevSession : emit prevSession(); return; + case CMD_nextSession : emit nextSession(); return; + } + + // fall back handling + if (!ev->text().isEmpty()) + { + if (ev->state() & AltButton) sendString("\033"); // ESC, this is the ALT prefix + QCString s = codec->fromUnicode(ev->text()); // encode for application + emit sndBlock(s.data(),s.length()); // we may well have s.length() > 1 + return; + } +} + +/* ------------------------------------------------------------------------- */ +/* */ +/* VT100 Charsets */ +/* */ +/* ------------------------------------------------------------------------- */ + +// Character Set Conversion ------------------------------------------------ -- + +/* + The processing contains a VT100 specific code translation layer. + It's still in use and mainly responsible for the line drawing graphics. + + These and some other glyphs are assigned to codes (0x5f-0xfe) + normally occupied by the latin letters. Since this codes also + appear within control sequences, the extra code conversion + does not permute with the tokenizer and is placed behind it + in the pipeline. It only applies to tokens, which represent + plain characters. + + This conversion it eventually continued in TEWidget.C, since + it might involve VT100 enhanced fonts, which have these + particular glyphs allocated in (0x00-0x1f) in their code page. +*/ + +#define CHARSET charset[scr==screen[1]] + +// Apply current character map. + +unsigned short TEmuVt102::applyCharset(unsigned short c) +{ + if (CHARSET.graphic && 0x5f <= c && c <= 0x7e) return vt100_graphics[c-0x5f]; + if (CHARSET.pound && c == '#' ) return 0xa3; //This mode is obsolete + return c; +} + +/* + "Charset" related part of the emulation state. + This configures the VT100 charset filter. + + While most operation work on the current screen, + the following two are different. +*/ + +void TEmuVt102::resetCharset(int scrno) +{ + charset[scrno].cu_cs = 0; + strncpy(charset[scrno].charset,"BBBB",4); + charset[scrno].sa_graphic = FALSE; + charset[scrno].sa_pound = FALSE; + charset[scrno].graphic = FALSE; + charset[scrno].pound = FALSE; +} + +/*! +*/ + +void TEmuVt102::setCharset(int n, int cs) // on both screens. +{ + charset[0].charset[n&3] = cs; useCharset(charset[0].cu_cs); + charset[1].charset[n&3] = cs; useCharset(charset[1].cu_cs); +} + +/*! +*/ + +void TEmuVt102::setAndUseCharset(int n, int cs) +{ + CHARSET.charset[n&3] = cs; + useCharset(n&3); +} + +/*! +*/ + +void TEmuVt102::useCharset(int n) +{ + CHARSET.cu_cs = n&3; + CHARSET.graphic = (CHARSET.charset[n&3] == '0'); + CHARSET.pound = (CHARSET.charset[n&3] == 'A'); //This mode is obsolete +} + +/*! Save the cursor position and the rendition attribute settings. */ + +void TEmuVt102::saveCursor() +{ + CHARSET.sa_graphic = CHARSET.graphic; + CHARSET.sa_pound = CHARSET.pound; //This mode is obsolete + // we are not clear about these + //sa_charset = charsets[cScreen->charset]; + //sa_charset_num = cScreen->charset; + scr->saveCursor(); +} + +/*! Restore the cursor position and the rendition attribute settings. */ + +void TEmuVt102::restoreCursor() +{ + CHARSET.graphic = CHARSET.sa_graphic; + CHARSET.pound = CHARSET.sa_pound; //This mode is obsolete + scr->restoreCursor(); +} + +/* ------------------------------------------------------------------------- */ +/* */ +/* Mode Operations */ +/* */ +/* ------------------------------------------------------------------------- */ + +/* + Some of the emulations state is either added to the state of the screens. + + This causes some scoping problems, since different emulations choose to + located the mode either to the current screen or to both. + + For strange reasons, the extend of the rendition attributes ranges over + all screens and not over the actual screen. + + We decided on the precise precise extend, somehow. +*/ + +// "Mode" related part of the state. These are all booleans. + +void TEmuVt102::resetModes() +{ + resetMode(MODE_Mouse1000); saveMode(MODE_Mouse1000); + resetMode(MODE_AppScreen); saveMode(MODE_AppScreen); + // here come obsolete modes + resetMode(MODE_AppCuKeys); saveMode(MODE_AppCuKeys); + resetMode(MODE_NewLine ); + setMode(MODE_Ansi ); +} + +void TEmuVt102::setMode(int m) +{ + currParm.mode[m] = TRUE; + switch (m) + { + case MODE_Mouse1000 : gui->setMouseMarks(FALSE); + break; + case MODE_AppScreen : screen[1]->clearSelection(); + screen[1]->clearEntireScreen(); + setScreen(1); + break; + } + if (m < MODES_SCREEN || m == MODE_NewLine) + { + screen[0]->setMode(m); + screen[1]->setMode(m); + } +} + +void TEmuVt102::resetMode(int m) +{ + currParm.mode[m] = FALSE; + switch (m) + { + case MODE_Mouse1000 : gui->setMouseMarks(TRUE); + break; + case MODE_AppScreen : screen[0]->clearSelection(); + setScreen(0); + break; + } + if (m < MODES_SCREEN || m == MODE_NewLine) + { + screen[0]->resetMode(m); + screen[1]->resetMode(m); + } +} + +void TEmuVt102::saveMode(int m) +{ + saveParm.mode[m] = currParm.mode[m]; +} + +void TEmuVt102::restoreMode(int m) +{ + if(saveParm.mode[m]) setMode(m); else resetMode(m); +} + +BOOL TEmuVt102::getMode(int m) +{ + return currParm.mode[m]; +} + +void TEmuVt102::setConnect(bool c) +{ + TEmulation::setConnect(c); + if (c) + { // refresh mouse mode + if (getMode(MODE_Mouse1000)) + setMode(MODE_Mouse1000); + else + resetMode(MODE_Mouse1000); + } +} + +/* ------------------------------------------------------------------------- */ +/* */ +/* Diagnostic */ +/* */ +/* ------------------------------------------------------------------------- */ + +/*! shows the contents of the scan buffer. + + This functions is used for diagnostics. It is called by \e ReportErrorToken + to inform about strings that cannot be decoded or handled by the emulation. + + \sa ReportErrorToken +*/ + +/*! +*/ + +static void hexdump(int* s, int len) +{ int i; + for (i = 0; i < len; i++) + { + if (s[i] == '\\') + printf("\\\\"); + else + if ((s[i]) > 32 && s[i] < 127) + printf("%c",s[i]); + else + printf("\\%04x(hex)",s[i]); + } +} + +void TEmuVt102::scan_buffer_report() +{ + if (ppos == 0 || ppos == 1 && (pbuf[0] & 0xff) >= 32) return; + printf("token: "); hexdump(pbuf,ppos); printf("\n"); +} + +/*! +*/ + +void TEmuVt102::ReportErrorToken() +{ + printf("undecodable "); scan_buffer_report(); +} |