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TerminalParser_Linux.m
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/*
copyright 2002, 2003 Alexander Malmberg <[email protected]>
2009-2011 GAP Project
This file is a part of Terminal.app. Terminal.app is free software; you
can redistribute it and/or modify it under the terms of the GNU General
Public License as published by the Free Software Foundation; version 2
of the License. See COPYING or main.m for more information.
*/
/*
lots borrowed from linux/drivers/char/console.c, GNU GPL:ed
*/
/*
* linux/drivers/char/console.c
*
* Copyright (C) 1991, 1992 Linus Torvalds
*/
#import <Foundation/NSString.h>
#import <Foundation/NSDebug.h>
#import <Foundation/NSNotification.h>
#import <AppKit/NSGraphics.h>
#include <netinet/in.h>
/* TODO */
#import "TerminalViewPrefs.h"
#import <AppKit/NSEvent.h>
#import "TerminalParser_Linux.h"
#import "TerminalParser_LinuxPrefs.h"
#include "charmaps.h"
#define set_translate(charset,foo) _set_translate(charset)
static const unichar *_set_translate(int charset)
{
if (charset<0 || charset>=4)
return translate_maps[0];
return translate_maps[charset];
}
@interface TerminalParser_Linux (private)
#define csi_J(foo,vpar) [self _csi_J: vpar]
#define csi_K(foo,vpar) [self _csi_K: vpar]
#define csi_L(foo,vpar) [self _csi_L: vpar]
#define csi_M(foo,vpar) [self _csi_M: vpar]
#define csi_P(foo,vpar) [self _csi_P: vpar]
#define csi_X(foo,vpar) [self _csi_X: vpar]
#define csi_at(foo,vpar) [self _csi_at: vpar]
#define csi_m(foo) [self _csi_m]
-(void) _csi_J: (int)vpar;
-(void) _csi_K: (int)vpar;
-(void) _csi_L: (unsigned int)vpar;
-(void) _csi_M: (unsigned int)vpar;
-(void) _csi_P: (unsigned int)vpar;
-(void) _csi_X: (int)vpar;
-(void) _csi_at: (unsigned int)vpar;
-(void) _csi_m;
-(void) _default_attr;
-(void) _update_attr;
@end
#define SCREEN(x,y) ((x)+(y)*width)
@implementation TerminalParser_Linux
#define gotoxy(foo,new_x,new_y) do { \
int min_y, max_y; \
\
if (new_x < 0) \
x = 0; \
else \
if (new_x >= width) \
x = width - 1; \
else \
x = new_x; \
if (decom) { \
min_y = top; \
max_y = bottom; \
} else { \
min_y = 0; \
max_y = height; \
} \
if (new_y < min_y) \
y = min_y; \
else if (new_y >= max_y) \
y = max_y - 1; \
else \
y = new_y; \
[ts ts_goto: x:y]; \
} while (0)
#define gotoxay(foo,nx,ny) gotoxy(foo,nx,decom?top+ny:ny)
#define save_cur(foo) do { \
saved_x = x; \
saved_y = y; \
s_intensity = intensity; \
s_underline = underline; \
s_blink = blink; \
s_reverse = reverse; \
s_charset = charset; \
s_color = color; \
saved_G0 = G0_charset; \
saved_G1 = G1_charset; \
} while (0)
#define restore_cur(foo) do { \
gotoxy(currcons,saved_x,saved_y); \
intensity = s_intensity; \
underline = s_underline; \
blink = s_blink; \
reverse = s_reverse; \
charset = s_charset; \
color = s_color; \
G0_charset = saved_G0; \
G1_charset = saved_G1; \
translate = set_translate(charset ? G1_charset : G0_charset,currcons); \
} while (0)
-(void) _reset_terminal
{
top = 0;
bottom = height;
vc_state = ESnormal;
ques = 0;
translate = set_translate(LAT1_MAP,currcons);
G0_charset = LAT1_MAP;
G1_charset = GRAF_MAP;
charset = 0;
// report_mouse = 0;
utf = 0;
utf_count = 0;
disp_ctrl = 0;
toggle_meta = 0;
decscnm = 0;
decom = 0;
decawm = 1;
deccm = 1;
decim = 0;
#if 0
set_kbd(decarm);
clr_kbd(decckm);
clr_kbd(kbdapplic);
clr_kbd(lnm);
kbd_table[currcons].lockstate = 0;
kbd_table[currcons].slockstate = 0;
kbd_table[currcons].ledmode = LED_SHOW_FLAGS;
kbd_table[currcons].ledflagstate = kbd_table[currcons].default_ledflagstate;
set_leds();
cursor_type = CUR_DEFAULT;
complement_mask = s_complement_mask;
#endif
[self _default_attr];
[self _update_attr];
tab_stop[0]= 0x01010100;
tab_stop[1]=tab_stop[2]=tab_stop[3]=tab_stop[4]=
tab_stop[5]=tab_stop[6]=tab_stop[7]=0x01010101;
gotoxy(currcons,0,0);
save_cur(currcons);
[self _csi_J: 2];
}
-(void) _csi_J: (int) vpar
{
unsigned int count;
int start;
switch (vpar) {
case 0: /* erase from cursor to end of display */
count = width*height-(x+y*width);
start = SCREEN(x,y);
break;
case 1: /* erase from start to cursor */
count = x+y*width+1;
start = SCREEN(0,0);
break;
case 2: /* erase whole display */
count = width*height;
start = SCREEN(0,0);
break;
default:
return;
}
[ts ts_putChar: video_erase_char count: count offset: start];
}
-(void) _csi_K: (int)vpar
{
unsigned int count;
int start;
switch (vpar) {
case 0: /* erase from cursor to end of line */
count = width-x;
start = SCREEN(x,y);
break;
case 1: /* erase from start of line to cursor */
count = x+1;
start = SCREEN(0,y);
break;
case 2: /* erase whole line */
count = width;
start = SCREEN(0,y);
break;
default:
return;
}
[ts ts_putChar: video_erase_char count: count offset: start];
}
-(void) _csi_X: (int)vpar /* erase the following vpar positions */
{ /* not vt100? */
int count;
if (!vpar)
vpar++;
count = (vpar > width-x) ? (width-x) : vpar;
[ts ts_putChar: video_erase_char count: count offset: SCREEN(x,y)];
}
-(void) _default_attr
{
intensity = 1;
underline = 0;
reverse = 0;
blink = 0;
color = def_color;
}
-(void) _update_attr
{
video_erase_char.color=color;
video_erase_char.attr=(intensity)|(underline<<2)|(reverse<<3)|(blink<<4);
}
static unsigned char color_table[] = { 0, 4, 2, 6, 1, 5, 3, 7,
8,12,10,14, 9,13,11,15 };
-(void) _csi_m
{
int i;
for (i=0;i<=npar;i++)
switch (par[i]) {
case 0: /* all attributes off */
[self _default_attr];
break;
case 1:
intensity = 2;
break;
case 2:
intensity = 0;
break;
case 4:
underline = 1;
break;
case 5:
blink = 1;
break;
case 7:
reverse = 1;
break;
case 10: /* ANSI X3.64-1979 (SCO-ish?)
* Select primary font, don't display
* control chars if defined, don't set
* bit 8 on output.
*/
translate = set_translate(charset == 0
? G0_charset
: G1_charset,currcons);
disp_ctrl = 0;
toggle_meta = 0;
break;
case 11: /* ANSI X3.64-1979 (SCO-ish?)
* Select first alternate font, lets
* chars < 32 be displayed as ROM chars.
*/
translate = set_translate(IBMPC_MAP,currcons);
disp_ctrl = 1;
toggle_meta = 0;
break;
case 12: /* ANSI X3.64-1979 (SCO-ish?)
* Select second alternate font, toggle
* high bit before displaying as ROM char.
*/
translate = set_translate(IBMPC_MAP,currcons);
disp_ctrl = 1;
toggle_meta = 1;
break;
case 21:
case 22:
intensity = 1;
break;
case 24:
underline = 0;
break;
case 25:
blink = 0;
break;
case 27:
reverse = 0;
break;
case 38: /* ANSI X3.64-1979 (SCO-ish?)
* Enables underscore, white foreground
* with white underscore (Linux - use
* default foreground).
*/
color = (def_color & 0x0f) | background;
underline = 1;
break;
case 39: /* ANSI X3.64-1979 (SCO-ish?)
* Disable underline option.
* Reset colour to default? It did this
* before...
*/
color = (def_color & 0x0f) | background;
underline = 0;
break;
case 49:
color = (def_color & 0xf0) | foreground;
break;
default:
if (par[i] >= 30 && par[i] <= 37)
color = color_table[par[i]-30]
| background;
else if (par[i] >= 40 && par[i] <= 47)
color = (color_table[par[i]-40]<<4)
| foreground;
break;
}
[self _update_attr];
}
#define scrup(foo,t,b,nr,indirect_scroll) do { \
int scrup_nr=nr; \
\
if (t+scrup_nr >= b) \
scrup_nr = b - t - 1; \
if (b > height || t >= b || scrup_nr < 1) \
return; \
[ts ts_scrollUp: t:b rows: scrup_nr save: indirect_scroll]; \
[ts ts_putChar: video_erase_char count: width*scrup_nr offset: width*(b-scrup_nr)]; \
} while (0)
#define scrdown(foo,t,b,nr) do { \
unsigned int step; \
int scrdown_nr=nr; \
\
if (t+scrdown_nr >= b) \
scrdown_nr = b - t - 1; \
if (b > height || t >= b || scrdown_nr < 1) \
return; \
step = width * scrdown_nr; \
[ts ts_scrollDown: t:b rows: scrdown_nr]; \
[ts ts_putChar: video_erase_char count: step offset: t*width]; \
} while (0)
#define insert_char(foo,nr) do { \
[ts ts_shiftRow: y at: x delta: nr]; \
[ts ts_putChar: video_erase_char count: nr at: x:y]; \
} while (0)
#define delete_char(foo,nr) do { \
[ts ts_shiftRow: y at: x+nr delta: -nr]; \
[ts ts_putChar: video_erase_char count: nr at: width-nr:y]; \
} while (0)
-(void) _csi_at: (unsigned int)nr
{
if (nr > width - x)
nr = width - x;
else if (!nr)
nr = 1;
insert_char(currcons, nr);
}
-(void) _csi_L: (unsigned int)nr
{
if (nr > height - y)
nr = height - y;
else if (!nr)
nr = 1;
scrdown(foo,y,bottom,nr);
}
-(void) _csi_P: (unsigned int)nr
{
if (nr > width - x)
nr = width - x;
else if (!nr)
nr = 1;
delete_char(currcons, nr);
}
-(void) _csi_M: (unsigned int)nr
{
if (nr > height - y)
nr = height - y;
else if (!nr)
nr=1;
scrup(foo,y,bottom,nr,NO);
}
#define set_kbd(foo)
#define clr_kbd(foo)
#define set_mode(foo,on_off) [self _set_mode: on_off]
-(void) _set_mode: (int) on_off
{
int i;
for (i=0; i<=npar; i++)
if (ques) switch(par[i]) { /* DEC private modes set/reset */
case 1: /* Cursor keys send ^[Ox/^[[x */
if (on_off)
{
set_kbd(decckm);
}
else
{
clr_kbd(decckm);
}
break;
case 3: /* 80/132 mode switch unimplemented */
NSDebugLLog(@"term",@"ignore _set_mode 3");
#if 0
deccolm = on_off;
(void) vc_resize(height, deccolm ? 132 : 80);
/* this alone does not suffice; some user mode
utility has to change the hardware regs */
#endif
break;
case 5: /* Inverted screen on/off */
if (decscnm != on_off) {
decscnm = on_off;
[self _update_attr]; /* TODO? */
}
break;
case 6: /* Origin relative/absolute */
decom = on_off;
gotoxay(currcons,0,0);
break;
case 7: /* Autowrap on/off */
decawm = on_off;
break;
case 8: /* Autorepeat on/off */
NSDebugLLog(@"term",@"ignore _set_mode 8");
#if 0
if (on_off)
set_kbd(decarm);
else
clr_kbd(decarm);
#endif
break;
case 9:
NSDebugLLog(@"term",@"ignore _set_mode 9");
#if 0
report_mouse = on_off ? 1 : 0;
#endif
break;
case 25: /* Cursor on/off */
deccm = on_off;
break;
case 1000:
NSDebugLLog(@"term",@"ignore _set_mode 1000");
#if 0
report_mouse = on_off ? 2 : 0;
#endif
break;
} else switch(par[i]) { /* ANSI modes set/reset */
case 3: /* Monitor (display ctrls) */
disp_ctrl = on_off;
break;
case 4: /* Insert Mode on/off */
decim = on_off;
break;
case 20: /* Lf, Enter == CrLf/Lf */
NSDebugLLog(@"term",@"ignore _set_mode 20");
#if 0
if (on_off)
set_kbd(lnm);
else
clr_kbd(lnm);
#endif
break;
}
}
#define setterm_command(foo) [self _setterm_command]
-(void) _setterm_command
{
NSDebugLLog(@"term",@"ignore _setterm_command %i\n",par[0]);
/* TODO: will need _update_attr */
switch(par[0]) {
#if 0
case 1: /* set color for underline mode */
if (can_do_color && par[1] < 16) {
ulcolor = color_table[par[1]];
if (underline)
update_attr(currcons);
}
break;
case 2: /* set color for half intensity mode */
if (can_do_color && par[1] < 16) {
halfcolor = color_table[par[1]];
if (intensity == 0)
update_attr(currcons);
}
break;
#endif
case 8: /* store colors as defaults */
def_color = color;
/* if (hi_font_mask == 0x100)
def_color >>= 1;*/
[self _default_attr];
[self _update_attr];
break;
#if 0
case 9: /* set blanking interval */
blankinterval = ((par[1] < 60) ? par[1] : 60) * 60 * HZ;
poke_blanked_console();
break;
case 10: /* set bell frequency in Hz */
if (npar >= 1)
bell_pitch = par[1];
else
bell_pitch = DEFAULT_BELL_PITCH;
break;
case 11: /* set bell duration in msec */
if (npar >= 1)
bell_duration = (par[1] < 2000) ?
par[1]*HZ/1000 : 0;
else
bell_duration = DEFAULT_BELL_DURATION;
break;
case 12: /* bring specified console to the front */
if (par[1] >= 1 && vc_cons_allocated(par[1]-1))
set_console(par[1] - 1);
break;
case 13: /* unblank the screen */
poke_blanked_console();
break;
case 14: /* set vesa powerdown interval */
vesa_off_interval = ((par[1] < 60) ? par[1] : 60) * 60 * HZ;
break;
#endif
}
}
-(void) processByte: (unsigned char)c
{
#define lf() do { \
if (y+1==bottom) \
{ \
scrup(foo,top,bottom,1,(top==0 && bottom==height)?YES:NO); \
} \
else if (y<height-1) \
{ \
y++; \
[ts ts_goto: x:y]; \
} \
} while (0)
#define ri() do { \
if (y==top) \
{ \
scrdown(foo,top,bottom,1); \
} \
else if (y>0) \
{ \
y--; \
[ts ts_goto: x:y]; \
} \
} while (0)
#define cr() do { x=0; [ts ts_goto: x:y]; } while (0)
#define cursor_report(foo,bar) do { \
char buf[40]; \
\
sprintf(buf, "\033[%d;%dR", y + (decom ? top+1 : 1), x+1); \
[ts ts_sendCString: buf]; \
} while (0)
#define status_report(foo) do { \
[ts ts_sendCString: "\033[0n"]; \
} while (0)
#define VT102ID "\033[?6c"
#define respond_ID(foo) do { [ts ts_sendCString: VT102ID]; } while (0)
switch (c)
{
case 0:
return;
case 7:
if (vc_state==EStitle_buf)
{
NSString *new_title;
title_buf[title_len]=0;
new_title=[NSString stringWithCString: title_buf];
[ts ts_setTitle: new_title type: title_type];
vc_state=ESnormal;
return;
}
NSBeep();
return;
case 8:
if (x>0)
{
x--;
[ts ts_goto: x:y];
}
return;
case 9:
while (x < width - 1) {
x++;
if (tab_stop[x >> 5] & (1 << (x & 31)))
break;
}
[ts ts_goto: x:y];
return;
case 10: case 11: case 12:
lf();
/* if (!is_kbd(lnm))*/
return;
case 13:
cr();
return;
case 14:
charset = 1;
translate = set_translate(G1_charset,currcons);
disp_ctrl = 1;
return;
case 15:
charset = 0;
translate = set_translate(G0_charset,currcons);
disp_ctrl = 0;
return;
case 24: case 26:
vc_state = ESnormal;
return;
case 27:
vc_state = ESesc;
return;
case 127:
// del(currcons);
return;
case 128+27: // This kills UTF-8 unless we do some funky stuff
if (!utf_count) {
vc_state = ESsquare;
return;
}
}
switch(vc_state) {
case ESesc:
vc_state = ESnormal;
switch (c) {
case '[':
vc_state = ESsquare;
return;
case ']':
vc_state = ESnonstd;
return;
case '%':
vc_state = ESpercent;
return;
case 'E':
cr();
lf();
return;
case 'M':
ri();
return;
case 'D':
lf();
return;
case 'H':
tab_stop[x >> 5] |= (1 << (x & 31));
return;
case 'Z':
respond_ID(foo);
return;
case '7':
save_cur(currcons);
return;
case '8':
restore_cur(currcons);
return;
case '(':
vc_state = ESsetG0;
return;
case ')':
vc_state = ESsetG1;
return;
case '#':
vc_state = EShash;
return;
case 'c':
[self _reset_terminal];
return;
case '>': /* Numeric keypad */
NSDebugLLog(@"term",@"ignore ESesc > keypad");
#if 0
clr_kbd(kbdapplic);
#endif
return;
case '=': /* Appl. keypad */
NSDebugLLog(@"term",@"ignore ESesc = keypad");
#if 0
set_kbd(kbdapplic);
#endif
return;
}
return;
case ESnonstd:
switch (c)
{
case '0':
case '1':
case '2':
case '3':
vc_state=EStitle_semi;
title_type=c-'0';
return;
case 'P':
NSDebugLLog(@"term",@"ignore ESnonstd P");
#if 0
for (npar=0; npar<NPAR; npar++)
par[npar] = 0 ;
npar = 0 ;
#endif
vc_state = ESpalette;
return;
case 'R':
NSDebugLLog(@"term",@"ignore ESnonstd R");
#if 0
reset_palette(currcons);
#endif
vc_state = ESnormal;
}
vc_state = ESnormal;
return;
case EStitle_semi:
if (c==';')
{
vc_state=EStitle_buf;
title_len=0;
}
else
vc_state=ESnormal;
return;
case EStitle_buf:
if (title_len==TITLE_BUF_SIZE)
{
vc_state=ESnormal;
}
else
{
title_buf[title_len++]=c;
}
return;
case ESpalette:
NSDebugLLog(@"term",@"ignore palette sequence (2)");
#if 0
if ( (c>='0'&&c<='9') || (c>='A'&&c<='F') || (c>='a'&&c<='f') ) {
par[npar++] = (c>'9' ? (c&0xDF)-'A'+10 : c-'0') ;
if (npar==7) {
int i = par[0]*3, j = 1;
palette[i] = 16*par[j++];
palette[i++] += par[j++];
palette[i] = 16*par[j++];
palette[i++] += par[j++];
palette[i] = 16*par[j++];
palette[i] += par[j];
set_palette(currcons);
vc_state = ESnormal;
}
} else
#endif
vc_state = ESnormal;
return;
case ESsquare:
for(npar = 0 ; npar < NPAR ; npar++)
par[npar] = 0;
npar = 0;
vc_state = ESgetpars;
if (c == '[') { /* Function key */
vc_state=ESfunckey;
return;
}
ques = (c=='?');
if (ques)
return;
case ESgetpars:
if (c==';' && npar<NPAR-1) {
npar++;
return;
} else if (c>='0' && c<='9') {
par[npar] *= 10;
par[npar] += c-'0';
return;
} else vc_state=ESgotpars;
case ESgotpars:
vc_state = ESnormal;
switch(c) {
case 'h':
set_mode(currcons,1);
return;
case 'l':
set_mode(currcons,0);
return;
case 'c':
NSDebugLLog(@"term",@"ignore ESgotpars c");
#if 0
if (ques) {
if (par[0])
cursor_type = par[0] | (par[1]<<8) | (par[2]<<16);
else
cursor_type = CUR_DEFAULT;
return;
}
#endif
break;
case 'n':
if (!ques) {
if (par[0] == 5)
status_report(tty);
else if (par[0] == 6)
cursor_report(currcons,tty);
}
return;
}
if (ques) {
ques = 0;
return;
}
switch(c) {
case 'G': case '`':
if (par[0]) par[0]--;
gotoxy(currcons,par[0],y);
return;
case 'A':
if (!par[0]) par[0]++;
gotoxy(currcons,x,y-par[0]);
return;
case 'B': case 'e':
if (!par[0]) par[0]++;
gotoxy(currcons,x,y+par[0]);
return;
case 'C': case 'a':
if (!par[0]) par[0]++;
gotoxy(currcons,x+par[0],y);
return;
case 'D':
if (!par[0]) par[0]++;
gotoxy(currcons,x-par[0],y);
return;
case 'E':
if (!par[0]) par[0]++;
gotoxy(currcons,0,y+par[0]);
return;
case 'F':
if (!par[0]) par[0]++;
gotoxy(currcons,0,y-par[0]);
return;
case 'd':
if (par[0]) par[0]--;
gotoxay(currcons,x,par[0]);
return;
case 'H': case 'f':
if (par[0]) par[0]--;
if (par[1]) par[1]--;
gotoxay(currcons,par[1],par[0]);
return;
case 'J':
csi_J(currcons,par[0]);
return;
case 'K':
csi_K(currcons,par[0]);
return;
case 'L':
csi_L(currcons,par[0]);
return;
case 'M':
csi_M(currcons,par[0]);
return;
case 'P':
csi_P(currcons,par[0]);
return;
case 'c':
if (!par[0])
respond_ID(tty);
return;
case 'g':
if (!par[0])
tab_stop[x >> 5] &= ~(1 << (x & 31));
else if (par[0] == 3) {
tab_stop[0] =
tab_stop[1] =
tab_stop[2] =
tab_stop[3] =
tab_stop[4] = 0;
}
return;
case 'm':
csi_m(currcons);
return;
case 'q': /* DECLL - but only 3 leds */
/* map 0,1,2,3 to 0,1,2,4 */
NSDebugLLog(@"term",@"ignore ESgotpars q");
#if 0
if (par[0] < 4)
setledstate(kbd_table + currcons,
(par[0] < 3) ? par[0] : 4);
#endif
return;
case 'r':
if (!par[0])
par[0]++;
if (!par[1])
par[1] = height;
/* Minimum allowed region is 2 lines */
if (par[0] < par[1] &&
par[1] <= height) {
top=par[0]-1;
bottom=par[1];
gotoxay(currcons,0,0);
}
return;
case 's':
save_cur(currcons);
return;
case 'u':
restore_cur(currcons);
return;
case 'X':
csi_X(currcons, par[0]);
return;
case '@':
csi_at(currcons,par[0]);
return;
case ']': /* setterm functions */
setterm_command(currcons);
return;
}
return;
case ESpercent:
vc_state = ESnormal;
switch (c) {
case '@': /* defined in ISO 2022 */
utf = 0;
return;
case 'G': /* prelim official escape code */
case '8': /* retained for compatibility */
utf = 1;
return;
}
return;