/*
* $Log$
+ * Revision 1.8 2008/02/06 11:49:47 james
+ * *** empty log message ***
+ *
+ * Revision 1.7 2008/02/06 11:30:37 james
+ * *** empty log message ***
+ *
+ * Revision 1.6 2008/02/05 01:11:46 james
+ * *** empty log message ***
+ *
+ * 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 (p.y, v->bottom_margin.x)].chr = ' ';
+/*But not attr due to vt102 bug*/
+}
+
+void
+vt102_insert_into_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) + 1],
+ &v->crt.screen[CRT_ADDR_POS (&p) ], sizeof (CRT_CA) * n);
}
+
+ v->crt.screen[CRT_ADDR (p.y, v->bottom_margin.x)].chr = ' ';
+ v->crt.screen[CRT_ADDR (p.y, v->bottom_margin.x)].attr = CRT_ATTR_NORMAL;
}
-void vt102_parse_esc(VT102 *v,int c)
+void
+vt102_change_mode (VT102 * v, int private, char *ns, int set)
{
-fprintf(stderr, "ESC %d(%c)\n",c,c);
+ int m;
+
+
+ if (*ns)
+ {
+ m = atoi (ns);
+ }
+ else
+ {
+ m = 1;
+ }
+
+ if (m < 0)
+ return;
+ if (m >= VT102_NMODES)
+ return;
+
+ if (private)
+ v->private_modes[m] = set;
+ else
+ v->modes[m] = set;
+
+ fprintf (stderr, "mode set=%d private=%d num=%d\n", set, private, m);
}
-void vt102_parse_csi(VT102 *v,char *buf,int len)
+void
+vt102_parse_mode_string (VT102 * v, char *buf, int len)
{
-buf[len]=0;
-fprintf(stderr, "CSI %s\n",buf);
+ int private = 0;
+ char last = buf[len - 1];
+ char num[4];
+ int o;
+
+ memset (num, 0, sizeof (num));
+ o = sizeof (num) - 1;
+
+ len--;
+
+ if (*buf == '?')
+ {
+ private++;
+ buf++;
+ len--;
+ }
+
+ if (len < 0)
+ return;
+
+ while (len--)
+ {
+ if (*buf == ';')
+ {
+ vt102_change_mode (v, private, &num[o], last == 'h');
+ memset (num, 0, sizeof (num));
+ o = sizeof (num) - 1;
+ buf++;
+ continue;
+ }
+
+ num[0] = num[1];
+ num[1] = num[2];
+ num[2] = *buf;
+
+ if (o)
+ o--;
+
+ buf++;
+ }
+
+ vt102_change_mode (v, private, &num[o], last == 'h');
+
}
+void
+vt102_parse_esc (VT102 * v, int 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;
+
+ case 'g':
+ fprintf (stderr, "C: CSI %s buf[0]=%c\n", buf, buf[0]);
+ break;
+
+ case 'h':
+ case 'l':
+ fprintf (stderr, "D: CSI %s buf[0]=%c\n", buf, buf[0]);
+ vt102_parse_mode_string (v, &buf[1], len - 1);
+ break;
+
+ case 'm':
+ //horror of horrors parsing the ;
+ break;
+ case 'r':
+ v->top_margin = v->screen_start;
+ v->bottom_margin = v->screen_end;
+
+ if ((len > 2) && (ptr = index (arg, ';')))
+ {
+ ptr++;
+ v->top_margin.y = narg - 1;
+ v->bottom_margin.y = atoi (ptr) - 1;
+ }
+
+ if (v->top_margin.y < v->screen_start.y)
+ v->top_margin.y = v->screen_start.y;
+ if (v->top_margin.y > v->screen_end.y)
+ v->top_margin.y = v->screen_end.y;
+ if (v->bottom_margin.y < v->screen_start.y)
+ v->bottom_margin.y = v->screen_start.y;
+ if (v->bottom_margin.y > v->screen_end.y)
+ v->bottom_margin.y = v->screen_end.y;
+
+ fprintf (stderr, "D: %d %d\n", v->top_margin.y, v->bottom_margin.y);
+
+ v->pos = v->top_margin;
+ 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_status_line (VT102 * v, char *str)
+{
+ 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 > 31) ? 32 : 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;
/*ENQ*/ case 5:
/*ACK*/ case 6:
/*BEL*/ case 7:
+ break;
/*BS*/ case 8:
- vt102_cursor_motion (v, -1, 0, 0, 0);
+ vt102_cursor_motion (v, -1, 0, 1);
break;
/*HT*/ case 9:
+ v->pos.x += 8;
+ v->pos.x &= ~7;
+ vt102_cursor_normalize (v, 1, 1);
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);
+ if (v->modes[VT102_MODE_NEWLINE_MODE])
+ v->pos.x = v->top_margin.x;
break;
/*CR*/ case 13:
- v->pos.x = 0;
+ v->pos.x = v->top_margin.x;
break;
/*SO*/ case 14:
/*SI*/ case 15:
/*DEL*/ case 127:
break;
/*regular character */ default:
+
+ if (v->modes[VT102_MODE_INSERT])
+ vt102_insert_into_line(v,v->pos);
+
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;
+
+ memset(v->modes,0,VT102_NMODES);
+ memset(v->private_modes,0,VT102_NMODES);
+
+ v->modes[VT102_PRIVATE_MODE_AUTO_WRAP]=1;
+ v->modes[VT102_PRIVATE_MODE_AUTO_REPEAT]=1;
+
+
}