/*
* $Log$
+ * Revision 1.5 2008/02/04 20:23:55 james
+ * *** empty log message ***
+ *
* Revision 1.4 2008/02/04 05:45:55 james
* ::
*
return 0;
}
-void vt102_scroll(VT102 *v,int start,int end)
-{
-
-}
void
-vt102_cursor_normalize (VT102 * v, int wrap, int scroll)
+vt102_cursor_normalize (VT102 * v, int do_wrapscroll, int use_margins)
{
- if (v->pos.x < -1) /*don't wrap backwards */
- v->pos.x = 0;
+ int wrap = do_wrapscroll ? 1 : 0;
+ int scroll = do_wrapscroll ? 1 : 0;
+ CRT_Pos *top, *bottom;
- if (v->pos.x >= CRT_COLS)
+ if (use_margins)
+ {
+ top = &v->top_margin;
+ bottom = &v->bottom_margin;
+ }
+ else
+ {
+ top = &v->screen_start;
+ bottom = &v->screen_end;
+ }
+
+ if (v->pos.x < top->x) /*don't wrap backwards */
+ v->pos.x = top->x;
+
+ if (v->pos.x > bottom->x)
{
if (wrap)
{
- v->pos.x = 0;
+ v->pos.x = top->x;
v->pos.y++;
}
else
{
- v->pos.x = CRT_COLS - 1;
+ v->pos.x = bottom->x;
}
}
- if (v->pos.y < 0)
- v->pos.y = 0;
+ if (v->pos.y < top->y)
+ v->pos.y = top->y;
- if (v->pos.y >= CRT_ROWS)
+ if (v->pos.y > bottom->y)
{
if (scroll)
- vt102_scroll (v, 0, CRT_ROWS - 1);
- v->pos.y = CRT_ROWS - 1;
+ crt_scroll_up (&v->crt, *top, *bottom, 1);
+ v->pos.y = bottom->y;
}
}
void
-vt102_cursor_motion (VT102 * v, int x, int y, int wrap, int scroll)
+vt102_cursor_motion (VT102 * v, int x, int y, int wrapscroll)
{
while (x > 0)
{
x--;
v->pos.x++;
- vt102_cursor_normalize (v, wrap, scroll);
+ vt102_cursor_normalize (v, wrapscroll, 1);
}
while (x < 0)
{
x++;
v->pos.x--;
- vt102_cursor_normalize (v, wrap, scroll);
+ vt102_cursor_normalize (v, wrapscroll, 1);
}
while (y > 0)
{
y--;
v->pos.y++;
- vt102_cursor_normalize (v, wrap, scroll);
+ vt102_cursor_normalize (v, wrapscroll, 1);
}
while (y < 0)
{
y++;
v->pos.y--;
- vt102_cursor_normalize (v, wrap, scroll);
+ vt102_cursor_normalize (v, wrapscroll, 1);
+ }
+}
+
+void
+vt102_delete_from_line (VT102 * v, CRT_Pos p)
+{
+ int n = v->bottom_margin.x - p.x;
+
+ if (n < 0)
+ return;
+
+ if (n)
+ {
+
+ memmove (&v->crt.screen[CRT_ADDR_POS (&p)],
+ &v->crt.screen[CRT_ADDR_POS (&p) + 1], sizeof (CRT_CA) * n);
}
+
+ v->crt.screen[CRT_ADDR (v->bottom_margin.x, p.y)].chr = ' ';
+/*But not attr due to vt102 bug*/
}
-void vt102_parse_esc(VT102 *v,int c)
+
+void
+vt102_parse_esc (VT102 * v, int c)
{
-fprintf(stderr, "ESC %d(%c)\n",c,c);
+ fprintf (stderr, "ESC 0%o(%c)\n", c, c);
+}
+
+void
+vt102_parse_csi (VT102 * v, char *buf, int len)
+{
+ char last;
+ char *ptr;
+ char *arg = buf + 1;
+ int narg;
+
+ buf[len] = 0;
+
+ last = buf[len - 1];
+#if 0
+ buf[len - 1] = 0;
+#endif
+
+ if (len>2)
+ {
+ narg = atoi (arg);
+ }
+ else
+ {
+ narg = 1;
+ }
+
+ switch (buf[0])
+ {
+ case '[':
+ switch (last)
+ {
+ case 'A':
+ vt102_cursor_motion (v, 0, -narg, 0);
+ break;
+ case 'B':
+ vt102_cursor_motion (v, 0, narg, 0);
+ break;
+ case 'C':
+ vt102_cursor_motion (v, narg, 0, 0);
+ break;
+ case 'D':
+ vt102_cursor_motion (v, -narg, 0, 0);
+ break;
+ case 'H':
+ v->pos.y = narg - 1;
+
+ ptr = index (arg, ';');
+ if (ptr)
+ v->pos.x = atoi (ptr + 1) - 1;
+ else
+ v->pos.x = 0;
+
+ vt102_cursor_normalize (v, 0, 0);
+ break;
+ case 'J':
+ fprintf(stderr,"OCTOPUS %d\n",narg);
+ switch (narg)
+ {
+ case 1:
+ crt_erase (&v->crt, v->pos, v->screen_end, 1);
+ break;
+ case 2:
+ crt_erase (&v->crt, v->screen_start, v->screen_end, 1);
+ break;
+ }
+ break;
+ case 'K':
+ {
+ CRT_Pos ls = { 0, v->pos.y };
+ CRT_Pos le = { VT102_COLS - 1, v->pos.y };
+ if (len==2)
+ narg = 0; /*Different default */
+
+ switch (narg)
+ {
+ case 0:
+ fprintf(stderr,"FISH %d %d -> %d %d\n",
+ v->pos.x,v->pos.y,
+ le.x,le.y);
+ crt_erase (&v->crt, v->pos, le, 1);
+ break;
+ case 1:
+ fprintf(stderr,"SOUP %d %d -> %d %d\n",
+ ls.x,ls.y,
+ v->pos.x,v->pos.y);
+ crt_erase (&v->crt, ls, v->pos, 1);
+ break;
+ case 2:
+ fprintf(stderr,"TREE %d %d -> %d %d\n",
+ ls.x,ls.y,
+ le.x,le.y);
+ crt_erase (&v->crt, ls, le, 1);
+ break;
+ }
+ }
+ break;
+
+ case 'P':
+ while (narg--)
+ vt102_delete_from_line (v, v->pos);
+ break;
+ case 'L':
+ if ((v->pos.y >= v->top_margin.y)
+ && (v->pos.y <= v->bottom_margin.y))
+ {
+ while (narg--)
+ crt_scroll_down (&v->crt, v->pos, v->bottom_margin, 1);
+ }
+ break;
+
+ case 'M':
+ if ((v->pos.y >= v->top_margin.y)
+ && (v->pos.y <= v->bottom_margin.y))
+ {
+ while (narg--)
+ crt_scroll_up (&v->crt, v->pos, v->bottom_margin, 0);
+ }
+ break;
+
+ default:
+ fprintf (stderr, "A: CSI %s buf[0]=%c\n", buf,buf[0]);
+ }
+ break;
+ default:
+ fprintf (stderr, "B: CSI %s buf[0]=%c\n", buf,buf[0]);
+ }
+
+
+
}
-void vt102_parse_csi(VT102 *v,char *buf,int len)
+void
+vt102_status_line (VT102 * v, char *str)
{
-buf[len]=0;
-fprintf(stderr, "CSI %s\n",buf);
+ int i = VT102_COLS;
+ CRT_CA *ca = &v->crt.screen[CRT_ADDR (VT102_STATUS_ROW, 0)];
+
+ while (i--)
+ {
+ ca->attr = CRT_ATTR_REVERSE;
+ ca->chr = *str;
+ if (*str)
+ str++;
+ ca++;
+ }
+
}
+
void
vt102_parse_char (VT102 * v, int c)
{
VT102_parser *p = &v->parser;
- fprintf(stderr,"%c pc %d %d %d %d %d\n",c,c,p->in_csi,p->in_escape,v->pos.x,v->pos.y);
+#if 0
+ fprintf (stderr, "%c pc %d %d %d %d %d\n", c, c, p->in_csi, p->in_escape,
+ v->pos.x, v->pos.y);
+#endif
if (p->in_csi)
{
p->csi_buf[p->csi_ptr++] = c;
/*ACK*/ case 6:
/*BEL*/ case 7:
/*BS*/ case 8:
- vt102_cursor_motion (v, -1, 0, 0, 0);
+ vt102_cursor_motion (v, -1, 0, 1);
break;
/*HT*/ case 9:
break;
/*LF*/ case 10:
- vt102_cursor_motion (v, 0, 1, 0, 1);
- break;
/*VT*/ case 11:
- break;
/*FF*/ case 12:
+ vt102_cursor_motion (v, 0, 1, 1);
break;
/*CR*/ case 13:
- v->pos.x = 0;
+ v->pos.x = v->top_margin.x;
break;
/*SO*/ case 14:
/*SI*/ case 15:
/*regular character */ default:
v->crt.screen[CRT_ADDR_POS (&v->pos)].chr = c;
v->crt.screen[CRT_ADDR_POS (&v->pos)].attr = v->attr;
- vt102_cursor_motion (v, 1, 0, 1, 1);
+ vt102_cursor_motion (v, 1, 0, 1);
}
}
- v->crt.pos=v->pos;
+ v->crt.pos = v->pos;
+
+ vt102_status_line (v, "VT102 foo bar baz I'm the urban spaceman baby");
+}
+
+void
+vt102_parser_reset (VT102_parser * p)
+{
+ p->in_csi = 0;
+ p->in_escape = 0;
+ p->csi_ptr = 0;
+}
+
+void
+vt102_reset (VT102 * v)
+{
+ VT102_parser *p = &v->parser;
+
+ vt102_parser_reset (p);
+ crt_cls (&v->crt);
+
+
+ v->screen_start.x = 0;
+ v->screen_start.y = 0;
+ v->screen_end.x = VT102_COLS - 1;
+ v->screen_end.y = VT102_ROWS - 1;
+
+ v->top_margin = v->screen_start;
+ v->bottom_margin = v->screen_end;
+
+ v->pos = v->screen_start;
+
}
~ianmdlvl / sympathy.git / blobdiff