support for fg and bg color escape sequences

1 files changed, 0 insertions, 198 deletions

diff --git a/terminal/vt52.c b/terminal/vt52.c
deleted file mode 100644
index 9197347..0000000
--- a/terminal/vt52.c
+++ /dev/null
@@ -1,198 +0,0 @@
-// 
-// http://en.wikipedia.org/wiki/VT52
-// http://vt100.net/docs/vt520-rm/
-//
-
-#include "vt52.h"
-#include "kernel/kmalloc.h"
-
-#define VT52_WIDTH 75
-#define VT52_HEIGHT 24
-
-
-#define VT52_ESC_1 0x1b  //ESC
-#define VT52_ESC_2 0x5b  //[
-
-#define VT52_UP 'A'
-#define VT52_DOWN 'B'
-#define VT52_RIGHT 'C'
-#define VT52_LEFT 'D'
-#define VT52_GRAPH_ON 'F'
-#define VT52_GRAPH_OFF 'G'
-#define VT52_HOME 'H'
-#define VT52_REV_FEED 'I'
-#define VT52_ERASE_SCR 'J'
-#define VT52_ERASE_LINE 'K'
-#define VT52_KEYPAD_ON '='
-#define VT52_KEYPAD_OFF '>'
-
-#define VT52_EXIT '<'
-
-#define VT52_ENTER_AUTOPRINT '^'
-#define VT52_EXIT_AUTOPRINT '_'
-
-#define VT52_PRINT_LINE 'W'
-#define VT52_ENTER_PRINT 'W'
-#define VT52_EXIT_PRINT 'X'
-#define VT52_PRINT ']'
-#define VT52_JUMP 'Y' // followed by LINE COL (subtr -32 from val)
-#define VT52_IDENTIFY 'Z'
-#define VT52_IDENTIFY_TO_HOST "/Z"
-
-static uint32_t index(vt52_tty *tty, uint32_t x, uint32_t y)
-{
-    return tty->width*y+x;
-}
-
-static void clear(vt52_tty *tty)
-{
-    for(int x=0;x<tty->width;x++)
-	for(int y=0;y<tty->height;y++)
-	{
-	    tty->data[index(tty,x,y)]=' ';
-	    tty->screen->put_char(' ',0xf,x,y);
-	}
-}
-
-vt52_tty vt52_init(term_out *screen,term_in *input)
-{
-    vt52_tty tty;
-
-    tty.data=kballoc(1);
-    tty.screen=screen;
-    tty.input=input;
-
-    tty.x=0;
-    tty.y=0;
-
-    tty.width=VT52_WIDTH;
-    tty.height=VT52_HEIGHT;
-
-    clear(&tty);
-
-    return tty;
-}
-
-
-static void set_char(vt52_tty *tty, uint32_t x, uint32_t y, uint32_t c)
-{
-    tty->data[index(tty,x,y)]=c;
-}
-
-static uint8_t escaping=0;
-
-void vt52_kb(vt52_tty *tty, uint8_t c)
-{
-    vt52_put(tty,c);
-    tty->input->put_char(c);
-}
-// send one ASCII character to the terminal
-bool vt52_put(vt52_tty *tty, uint8_t c)
-{   
-    if(c==VT52_ESC_1){escaping=1;return;}
-    if(c==VT52_ESC_2){if(escaping==1)escaping=2;return;}
-
-    if(escaping==3){tty->x=c-32; escaping++;return;} //TODO: check for overflow?
-    if(escaping==4){tty->y=c-32; escaping=0;return;}
-
-    if(escaping==2) // two last characters are escape seq: ^[
-    {
-	if(c==VT52_JUMP)escaping++;
-
-	else
-	{
-	    switch('c')
-	    {
-		case VT52_UP:
-		    if(tty->y>0)tty->y--;
-		break;
-
-		case VT52_DOWN:
-		    if(tty->y+1<tty->height)tty->y++;
-		break;
-
-		case VT52_LEFT:
-		    if(tty->x+1<tty->width)tty->x++;
-		break;
-
-		case VT52_RIGHT:
-		    if(tty->x>0)tty->x--;
-		break;
-
-		case VT52_HOME:
-		    tty->x=tty->y=0;
-		break;
-
-		case VT52_REV_FEED:
-
-		break;
-
-		case VT52_ERASE_SCR:
-		    for(uint32_t y=tty->y+1;y<tty->height;y++)
-		    {
-			for(uint32_t x=0;x<tty->width;x++)
-			{
-			    uint32_t c=tty->data[index(tty,x,y+1)];
-			    tty->data[index(tty,x,y)] = c;
-			    tty->screen->put_char(c,0xf,x,y);
-			}
-		    }
-		case VT52_ERASE_LINE:
-
-		    for(uint32_t x=tty->x;x<tty->width;x++)
-		    {
-			uint32_t c=tty->data[index(tty,x,tty->y)];
-			tty->data[index(tty,x,tty->y)] = c;
-			tty->screen->put_char(c,0xf,x,tty->y);
-		    }
-
-		break;
-
-	    }
-
-	    escaping=0;
-	}
-
-	return;
-
-    }
-
-    if(c!='\n')
-    {
-        tty->data[index(tty,tty->x,tty->y)]=c;
-	tty->screen->put_char(c,0xf,tty->x,tty->y);
-    }
-    else
-    {
-	tty->y++;
-	tty->x=-1;
-    }
-
-    tty->x++;
-
-    if(tty->x>=tty->width)
-    {
-	tty->x=0;
-	tty->y++;
-    }
-
-    //autoscroll
-    if(tty->y>=tty->height)
-    {
-	tty->y--;
-	for(uint32_t y=0;y<tty->height;y++)
-	{
-	    for(uint32_t x=0;x<tty->width;x++)
-	    {
-		uint32_t c=tty->data[index(tty,x,y+1)];
-		if(y==tty->height-1)c=' ';
-		tty->data[index(tty,x,y)] = c;
-		tty->screen->put_char(c,0xf,x,y);
-	    }
-	}
-    }
-
-    tty->screen->update_cursor(tty->x,tty->y);
-    return true;
-}
-