+void
+vt102_cursor_retreat_tab (VT102 * v)
+{
+ if (v->pos.x == v->top_margin.x)
+ return;
+ while (v->pos.x > v->top_margin.x)
+ {
+ v->pos.x--;
+ if (v->tabs[v->pos.x])
+ break;
+ }
+ v->pending_wrap = 0;
+}
+
+vt102_cursor_home (VT102 * v)
+{
+ v->pos = v->top_margin;
+ vt102_cursor_normalize (v);
+ v->pending_wrap = 0;
+
+}
+
+vt102_cursor_absolute (VT102 * v, int x, int y)
+{
+ if (v->private_modes[VT102_PRIVATE_MODE_ORIGIN_MODE])
+ {
+ v->pos.x = x + v->top_margin.x;
+ v->pos.y = y + v->top_margin.y;
+ }
+ else
+ {
+ v->pos.x = x;
+ v->pos.y = y;
+ }
+ vt102_cursor_normalize (v);
+ v->pending_wrap = 0;
+}
+
+vt102_cursor_relative (VT102 * v, int x, int y)
+{
+ v->pos.x += x;
+ v->pos.y += y;
+ vt102_cursor_normalize (v);
+ v->pending_wrap = 0;
+}
+
+
+
+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_POS (&p)].chr = ' ';
+ v->crt.screen[CRT_ADDR_POS (&p)].attr = CRT_ATTR_NORMAL;
+ v->crt.screen[CRT_ADDR_POS (&p)].color = CRT_COLOR_NORMAL;
+}
+
+
+
+void
+vt102_change_mode (Context * c, int private, char *ns, int set)
+{
+ VT102 *v = c->v;
+ 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;
+ switch (m)
+ {
+ case VT102_PRIVATE_MODE_CURSOR_MODE:
+ if (v->application_keypad_mode)
+ v->private_modes[m] = 0;
+#if 0
+ fprintf (stderr, "APPLICATION CURSOR MODE %d wanted %d\n",
+ v->private_modes[m], set);
+#endif
+ break;
+ case VT102_PRIVATE_MODE_ORIGIN_MODE:
+ vt102_cursor_home (v);
+ break;
+ case VT102_PRIVATE_MODE_132COLS:
+ /* We don't implement 132 col mode - yet */
+
+ v->current_size.x =
+ v->
+ private_modes[VT102_PRIVATE_MODE_132COLS] ? VT102_COLS_132 :
+ VT102_COLS_80;
+
+ vt102_do_resize (c);
+ break;
+ }
+
+ }
+ else
+ v->modes[m] = set;
+
+#if 0
+ fprintf (stderr, "mode set=%d private=%d num=%d\n", set, private, m);
+#endif
+}
+
+void
+vt102_parse_mode_string (Context * c, char *buf, int len)
+{
+ VT102 *v = c->v;
+ 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 (c, 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 (c, private, &num[o], last == 'h');
+
+}
+
+
+void
+vt102_change_attr (VT102 * v, char *na)
+{
+ int a;
+
+
+ if (*na)
+ {
+ a = atoi (na);
+ }
+ else
+ {
+ a = 0;
+ }
+
+ switch (a)
+ {
+ case 0:
+ v->attr = CRT_ATTR_NORMAL;
+ v->color = CRT_COLOR_NORMAL;
+ break;
+ case 1:
+ v->attr |= CRT_ATTR_BOLD;
+ break;
+ case 21:
+ case 22:
+ v->attr &= ~CRT_ATTR_BOLD;
+ break;
+ case 4:
+ v->attr |= CRT_ATTR_UNDERLINE;
+ break;
+ case 24:
+ v->attr &= ~CRT_ATTR_UNDERLINE;
+ break;
+ case 5:
+ v->attr |= CRT_ATTR_BLINK;
+ break;
+ case 25:
+ v->attr &= ~CRT_ATTR_BLINK;
+ break;
+ case 7:
+ v->attr |= CRT_ATTR_REVERSE;
+ break;
+ case 27:
+ v->attr &= ~CRT_ATTR_REVERSE;
+ break;
+ case 30:
+ case 31:
+ case 32:
+ case 33:
+ case 34:
+ case 35:
+ case 36:
+ case 37:
+ v->color &= ~CRT_COLOR_FG_MASK;
+ v->color |= ((a - 30) << CRT_COLOR_FG_SHIFT) & CRT_COLOR_FG_MASK;
+ break;
+ case 90:
+ case 91:
+ case 92:
+ case 93:
+ case 94:
+ case 95:
+ case 96:
+ case 97:
+ v->color &= ~CRT_COLOR_FG_MASK;
+ v->color |=
+ (((a -
+ 90) | CRT_COLOR_INTENSITY) << CRT_COLOR_FG_SHIFT) &
+ CRT_COLOR_FG_MASK;
+ break;
+ case 39:
+ case 99:
+ v->color &= ~CRT_COLOR_FG_MASK;
+ v->color |=
+ (CRT_FGCOLOR_NORMAL << CRT_COLOR_FG_SHIFT) & CRT_COLOR_FG_MASK;
+ break;
+ case 40:
+ case 41:
+ case 42:
+ case 43:
+ case 44:
+ case 45:
+ case 46:
+ case 47:
+ v->color &= ~CRT_COLOR_BG_MASK;
+ v->color |= ((a - 40) << CRT_COLOR_BG_SHIFT) & CRT_COLOR_BG_MASK;
+ break;
+ case 100:
+ case 101:
+ case 102:
+ case 103:
+ case 104:
+ case 105:
+ case 106:
+ case 107:
+ v->color &= ~CRT_COLOR_BG_MASK;
+ v->color |=
+ (((a -
+ 100) | CRT_COLOR_INTENSITY) << CRT_COLOR_BG_SHIFT) &
+ CRT_COLOR_BG_MASK;
+ break;
+ case 49:
+ case 109:
+ v->color &= ~CRT_COLOR_BG_MASK;
+ v->color |=
+ (CRT_BGCOLOR_NORMAL << CRT_COLOR_BG_SHIFT) & CRT_COLOR_BG_MASK;
+ break;
+
+ default:
+ ;
+#if 0
+ fprintf (stderr, "unhandled SGR %d\n", a);
+#endif
+ }
+
+}
+
+
+void
+vt102_parse_attr_string (VT102 * v, char *buf, int len)
+{
+ int private = 0;
+ char last = buf[len - 1];
+ char num[4];
+ int o;
+
+ memset (num, 0, sizeof (num));
+ o = sizeof (num) - 1;
+
+ len--;
+
+ if (len < 0)
+ return;
+
+ while (len--)
+ {
+ if (*buf == ';')
+ {
+ vt102_change_attr (v, &num[o]);
+ 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_attr (v, &num[o]);
+}
+
+void
+vt102_save_state (VT102 * v)
+{
+ v->saved.pos = v->pos;
+ v->saved.attr = v->attr;
+ v->saved.color = v->color;
+ v->saved.origin_mode = v->private_modes[VT102_PRIVATE_MODE_ORIGIN_MODE];
+}
+
+void
+vt102_restore_state (VT102 * v)
+{
+ v->pos = v->saved.pos;
+ v->attr = v->saved.attr;
+ v->color = v->saved.color;
+ v->private_modes[VT102_PRIVATE_MODE_ORIGIN_MODE] = v->saved.origin_mode;
+ vt102_cursor_normalize (v);
+ v->pending_wrap = 0;
+}
+
+void
+vt102_regular_char (Context * c, VT102 * v, uint32_t ch)
+{
+
+
+ vt102_do_pending_wrap (c);
+
+
+ if (v->modes[VT102_MODE_INSERT])
+ vt102_insert_into_line (v, v->pos);
+
+ v->last_reg_char = ch;
+
+
+ if (ch < VT102_CHARSET_SIZE)
+ {
+ int cs;
+ if ((cs = vt102_charset_c0[ch]))
+ {
+ ch = cs;
+ }
+ else if ((cs = charset_from_csid[v->g[v->cs]][ch]))
+ {
+ ch = cs;
+ }
+ }
+ v->crt.screen[CRT_ADDR_POS (&v->pos)].chr = ch;
+ v->crt.screen[CRT_ADDR_POS (&v->pos)].attr = v->attr;
+ v->crt.screen[CRT_ADDR_POS (&v->pos)].color = v->color;
+ vt102_cursor_advance (c);
+
+}
+
+vt102_send_id (Context * c, char *buf)
+{
+
+ if (c->t)
+ {
+ int l = strlen (buf);
+ c->t->xmit (c->t, buf, l);
+ }
+}
+
+void
+vt102_scs (Context * c, int g, int s)
+{
+ VT102 *v = c->v;
+ int cs = VT102_CSID_US;
+
+
+ switch (s)
+ {
+ case 'A':
+ cs = VT102_CSID_UK;
+ break;
+ case '1':
+ case '2':
+ case 'B':
+ cs = VT102_CSID_US;
+ break;
+ case '0':
+ cs = VT102_CSID_GL;
+ break;
+ }
+
+ switch (g)
+ {
+ case '(':
+ v->g[0] = cs;
+ break;
+ case ')':
+ v->g[1] = cs;
+ break;
+ }
+
+}
+
+void
+vt102_parse_csi (Context * c, char *buf, int len)
+{
+ char last;
+ char *ptr;
+ char *arg = buf + 1;
+ int narg;
+
+ VT102 *v = c->v;
+
+ 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 '@':
+ while (narg--)
+ vt102_insert_into_line (v, v->pos);
+ break;
+ case 'A':
+ vt102_cursor_relative (v, 0, -narg);
+ break;
+ case 'e':
+ case 'B':
+ vt102_cursor_relative (v, 0, narg);
+ break;
+ case 'a':
+ case 'C':
+ vt102_cursor_relative (v, narg, 0);
+ break;
+ case 'D':
+ vt102_cursor_relative (v, -narg, 0);
+ break;
+ case 'E':
+ vt102_cursor_relative (v, 0, narg);
+ vt102_cursor_carriage_return (v);
+ break;
+ case 'F':
+ vt102_cursor_relative (v, 0, -narg);
+ vt102_cursor_carriage_return (v);
+ break;
+ case 'G':
+ vt102_cursor_absolute (v, narg - 1, v->pos.y);
+ break;
+ case 'H':
+ case 'f':
+ {
+ int x, y;
+
+ y = narg - 1;
+
+ ptr = index (arg, ';');
+ if (ptr)
+ x = atoi (ptr + 1) - 1;
+ else
+ x = 0;
+
+ vt102_cursor_absolute (v, x, y);
+ }
+ break;
+ case 'I':
+ while (narg--)
+ vt102_cursor_advance_tab (c->v);
+ break;
+ case 'J':
+ if (len == 2)
+ narg = 0; /*Different default */
+ switch (narg)
+ {
+ case 0:
+ crt_erase (&v->crt, v->pos, v->screen_end, 1, v->color);
+ break;
+ case 1:
+ crt_erase (&v->crt, v->screen_start, v->pos, 1, v->color);
+ break;
+ case 2:
+ crt_erase (&v->crt, v->screen_start, v->screen_end, 1,
+ v->color);
+ break;
+ }
+ break;
+ case 'K':
+ {
+ CRT_Pos ls = { 0, v->pos.y };
+ CRT_Pos le = { v->current_size.x - 1, v->pos.y };
+ if (len == 2)
+ narg = 0; /*Different default */
+
+ switch (narg)
+ {
+ case 0:
+ crt_erase (&v->crt, v->pos, le, 1, v->color);
+ break;
+ case 1:
+ crt_erase (&v->crt, ls, v->pos, 1, v->color);
+ break;
+ case 2:
+ crt_erase (&v->crt, ls, le, 1, v->color);
+ break;
+ }
+ }
+ 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,
+ v->color);
+ }
+ break;
+
+ case 'M':
+ if ((v->pos.y >= v->top_margin.y)
+ && (v->pos.y <= v->bottom_margin.y))
+ {
+ while (narg--)
+ {
+ vt102_history (c, v->pos, v->bottom_margin);
+ crt_scroll_up (&v->crt, v->pos, v->bottom_margin, 1,
+ v->color);
+ }
+ }
+ break;
+ case 'P':
+ while (narg--)
+ vt102_delete_from_line (v, v->pos);
+ break;
+ case 'S':
+ while (narg--)
+ {
+ vt102_history (c, v->top_margin, v->bottom_margin);
+ crt_scroll_up (&v->crt, v->top_margin, v->bottom_margin, 1,
+ v->color);
+ }
+ break;
+ case 'T':
+ while (narg--)
+ crt_scroll_down (&v->crt, v->top_margin, v->bottom_margin, 1,
+ v->color);
+ break;
+ case 'X':
+ {
+ CRT_Pos end = v->pos;
+ if (!narg)
+ narg++;
+
+ end.x += narg - 1;
+ if (end.x > v->bottom_margin.x)
+ end.x = v->bottom_margin.x;
+
+ crt_erase (&v->crt, v->pos, end, 1, v->color);
+ }
+ break;
+ case 'Z':
+ while (narg--)
+ vt102_cursor_retreat_tab (c->v);
+ break;
+ case '`':
+ vt102_cursor_absolute (v, narg - 1, v->pos.y);
+ break;
+ case 'b':
+ while (narg--)
+ vt102_regular_char (c, v, v->last_reg_char);
+ break;
+ case 'c':
+ vt102_send_id (c, "\033[?2c");
+ break;
+ case 'd':
+ vt102_cursor_absolute (v, v->pos.x, narg - 1);
+ break;
+ case 'g':
+ if (len == 2)
+ narg = 0; /*Different default */
+
+ switch (narg)
+ {
+ case 0:
+ v->tabs[v->pos.x] = 0;
+ break;
+ case 2: //FIXME: - LA120 says current line only WTF?
+ case 3:
+ memset (v->tabs, 0, sizeof (v->tabs));
+ break;
+ }
+ break;
+
+ case 'i': //Printer commands
+ //FIXME
+ break;
+ case 'h':
+ case 'l':
+ vt102_parse_mode_string (c, &buf[1], len - 1);
+ break;
+
+
+ case 'm':
+ vt102_parse_attr_string (v, &buf[1], len - 1);
+ break;
+ case 'n': //Device status report
+ switch (buf[1])
+ {
+ case '5':
+ vt102_send_id (c, "\033[0n");
+ break;
+ case '6':
+ if (c->t)
+ {
+ char buf[16];
+ int i;
+ i =
+ sprintf (buf, "\033[%d;%dR", v->pos.y + 1, v->pos.x + 1);
+ c->t->xmit (c->t, buf, i);
+ }
+ break;
+ default:
+ //?15n printer status
+ log_f (c->l, "<%s:%d unhandled DSR: \\033%s>", __FILE__,
+ __LINE__, buf);
+ }
+ break;
+ case 'q': //Load LED on off
+ 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;
+
+ vt102_cursor_home (v);
+ break;
+ case 's':
+ v->saved.pos = v->pos;
+ break;
+ case 'u':
+ v->pos = v->saved.pos;
+ vt102_cursor_normalize (v);
+ v->pending_wrap = 0;
+ break;
+ case 'y': //Invoke confidence test
+ break;
+ case 'z': //request terminal parameters
+ break;
+
+ default:
+ log_f (c->l, "<%s:%d unhandled CSI: \\033%s>", __FILE__, __LINE__,
+ buf);
+
+ ;
+ }
+ break;
+ default:
+ log_f (c->l, "<%s:%d unhandled sequence: \\033%s>", __FILE__,
+ __LINE__, buf);
+ ;
+ }
+
+
+
+}
+
+void
+vt102_parse_esc (Context * c)
+{
+ VT102 *v = c->v;
+ VT102_parser *p = &v->parser;
+
+#ifdef DEBUG
+ p->cmd_buf[p->cmd_ptr] = 0;
+ log_f (c->l, "<cmd in x=%3d y=%2d aw=%d vt=%d <ESC>%s >", v->pos.x,
+ v->pos.y, v->pending_wrap,
+ !v->private_modes[VT102_PRIVATE_MODE_VT52], p->cmd_buf);
+#endif
+
+ if (!v->private_modes[VT102_PRIVATE_MODE_VT52])
+ {
+ int ate = 1;
+
+ switch (p->cmd_buf[0])
+ {
+ case 'A':
+ vt102_cursor_relative (v, 0, -1);
+ break;
+ case 'B':
+ vt102_cursor_relative (v, 0, 1);
+ break;
+ case 'C':
+ vt102_cursor_relative (v, 1, 0);
+ break;
+ case 'D':
+ vt102_cursor_relative (v, -1, 0);
+ break;
+ case 'F':
+ v->cs = 1;
+ v->g[1] = VT102_CSID_VT52;
+ break;
+ case 'G':
+ v->cs = 0;
+ v->g[0] = VT102_CSID_US;
+ break;
+ case 'H':
+ vt102_cursor_absolute (v, 0, 0);
+ break;
+ case 'I':
+ vt102_cursor_retreat_line (c);
+ break;
+ case 'J':
+ crt_erase (&v->crt, v->pos, v->screen_end, 1, v->color);
+ break;
+ case 'K':
+ {
+ CRT_Pos le = { v->current_size.x - 1, v->pos.y };
+ crt_erase (&v->crt, v->pos, le, 1, v->color);
+ }
+ break;
+ case 'Y':
+ vt102_cursor_absolute (v, p->cmd_buf[2] - 040, p->cmd_buf[1] - 040);
+ break;
+ case 'V': //Print current line
+ break;
+ case 'W': //Printer on
+ break;
+ case 'X': //printer off
+ break;
+ case ']': //print screen
+ break;
+ case 'Z': //ID
+ vt102_send_id (c, "\033/K");
+ break;
+ case '^': //Autoprint on
+ break;
+ case '_': //Autoprint off
+ break;
+ case '=':
+ v->application_keypad_mode = 1;
+ break;
+ case '>':
+ v->application_keypad_mode = 0;
+ break;
+ default:
+ ate = 0;
+ }
+ if (ate)
+ return;
+ }
+
+
+/*If you edit this switch don't forget to edit the length and termination tables*/
+ switch (p->cmd_buf[0])
+ {
+ case 'D':
+ vt102_cursor_advance_line (c);
+ break;
+
+ case 'E':
+ vt102_cursor_advance_line (c);
+ v->pos.x = v->top_margin.x;
+ vt102_cursor_normalize (v);
+ v->pending_wrap = 0;
+ break;
+ case 'H':
+ v->tabs[v->pos.x]++;
+ break;
+ case 'M':
+ vt102_cursor_retreat_line (c);
+ break;
+ case 'N': //select G2 for one char
+ break;
+ case 'O': //select G3 for one char
+ break;
+ case 'Z':
+ vt102_send_id (c, terminal_id);
+ break;
+ case 'c':
+ vt102_reset (c);
+ break;
+ case '=':
+ v->application_keypad_mode = 1;
+ break;
+ case '>':
+ v->application_keypad_mode = 0;
+ break;
+
+ case '#':
+ switch (p->cmd_buf[1])
+ {
+ case '3': //top of double height line
+ case '4': //bottom of double height line
+ case '5': //single width line
+ case '6': //double width line
+ break;
+ case '8':
+ /*DECALN*/
+ {
+ int i;
+ crt_erase (&v->crt, v->screen_start, v->screen_end, 1,
+ CRT_COLOR_NORMAL);
+ for (i = 0; i < CRT_ADDR_POS (&v->screen_end); ++i)
+ v->crt.screen[i].chr = 'E';
+ }
+ break;
+ default:
+
+ log_f (c->l,
+ "<%s:%d unhandled ESC: \\033 \\043 \\%03o (ESC # %c)>",
+ __FILE__, __LINE__, p->cmd_buf[1], safe_ch (p->cmd_buf[1]));
+
+ }
+ break;
+ case '<':
+ /*Set ansi mode - ignored */
+ break;
+
+ case '7':
+ vt102_save_state (v);
+ break;
+ case '8':
+ vt102_restore_state (v);
+ break;
+ case ']': /*Set various titles */
+ //FIXME:
+ break;
+ case '[':
+ vt102_parse_csi (c, p->cmd_buf, p->cmd_ptr);
+ break;
+ case '(': /*Charsets */
+ case ')':
+ case '+':
+ case '*':
+ case '%':
+ vt102_scs (c, p->cmd_buf[0], p->cmd_buf[1]);
+ break;
+ default:
+ log_f (c->l, "<%s:%d unhandled ESC: \\033 \\%03o (ESC %c)>", __FILE__,
+ __LINE__, p->cmd_buf[0], safe_ch (p->cmd_buf[0]));
+
+ ;
+ }
+
+ p->cmd_buf[p->cmd_ptr] = 0;
+#ifdef DEBUG
+ log_f (c->l, "<cmd out x=%3d y=%2d aw=%d>", v->pos.x, v->pos.y,
+ v->pending_wrap);
+#endif
+}
+
+void
+vt102_status_line (VT102 * v, char *str)
+{
+ int i;
+ CRT_CA *ca = &v->crt.screen[CRT_ADDR (v->current_size.y, 0)];
+
+ for (i = 0; i < v->current_size.x; ++i)
+ {
+ ca->attr = CRT_ATTR_REVERSE;
+ ca->color = CRT_COLOR_NORMAL;
+ ca->chr = *str ? *str : ' ';
+ if (*str)
+ str++;
+ ca++;
+ }
+
+ for (; i < VT102_MAX_COLS; ++i)
+ {
+ ca->attr = CRT_ATTR_NORMAL;
+ ca->color = CRT_COLOR_NORMAL;
+ ca->chr = ' ';
+ ca++;
+ }
+
+}
+
+
+void
+vt102_parser_reset (VT102_parser * p)
+{
+ p->in_cmd = 0;
+ p->cmd_more_bytes = 0;
+ p->cmd_termination = 0;
+ p->in_escape = 0;
+}
+
+
+void
+vt102_reset_state (Context * c)
+{
+ VT102 *v = c->v;
+ vt102_parser_reset (&v->parser);
+
+ v->attr = CRT_ATTR_NORMAL;
+ v->color = CRT_COLOR_NORMAL;
+
+ v->application_keypad_mode = 0;
+
+ v->current_size = v->original_size;
+
+ vt102_do_resize (c);
+
+ memset (v->modes, 0, VT102_NMODES);
+ memset (v->private_modes, 0, VT102_NMODES);
+
+ v->private_modes[VT102_PRIVATE_MODE_AUTO_WRAP] = 1;
+ v->private_modes[VT102_PRIVATE_MODE_AUTO_REPEAT] = 1;
+ v->private_modes[VT102_PRIVATE_MODE_SHOW_CURSOR] = 1;
+ v->private_modes[VT102_PRIVATE_MODE_VT52] = 1;
+ v->modes[VT102_MODE_LOCAL_ECHO_OFF] = 1;
+
+ vt102_reset_tabs (v);
+
+ v->g[0] = v->g[1] = VT102_CSID_US;
+ v->cs = 0;
+}
+
+static void
+pre_parse_cmd (int ch, VT102_parser * p)
+{
+ if (ch > TABLE_LENGTH)
+ return;
+ if (ch < 0)
+ return;
+
+ p->cmd_more_bytes = 0;
+ p->in_cmd = 0;
+
+ p->cmd_termination = vt102_cmd_termination[ch];
+ if (p->cmd_termination)
+ {
+ p->in_cmd++;
+ return;
+ }
+
+ p->cmd_more_bytes = vt102_cmd_length[ch];
+
+ if (p->cmd_more_bytes)
+ {
+ p->in_cmd++;
+ return;
+ }
+}
+
+void
+vt102_parse_char (Context * c, int ch)
+{
+ VT102 *v = c->v;
+ VT102_parser *p = &v->parser;
+
+#if 0
+ log_f (c->l, "char %3d %c ie=%d ic=%d cmb=%d ct=%3d %2d %2d %d", ch,
+ safe_ch (ch), p->in_escape, p->in_cmd, p->cmd_more_bytes,
+ p->cmd_termination, v->pos.x, v->pos.y, v->pending_wrap);
+#endif
+
+/* Turn anything non-ascii into '?' */
+#if 0
+ if ((ch != SYM_CHAR_RESET) && (ch != 0xb9) && (ch > 127))
+ {
+ ch = '?';
+ }
+#endif
+
+
+#if 0
+ if (p->dca_ptr == 2)
+ {
+ p->in_dca = 0;
+ }
+#endif
+ if (ch == SYM_CHAR_RESET)
+ {
+ vt102_reset_state (c);
+ }
+ else if (p->in_cmd && !ctrl_chr (ch, p->cmd_termination))
+ {
+ p->cmd_buf[p->cmd_ptr++] = ch;
+ if (p->cmd_ptr == VT102_CMD_LEN)
+ p->in_cmd = 0;
+ if (p->cmd_more_bytes)
+ {
+ p->cmd_more_bytes--;
+
+
+ if (!p->cmd_more_bytes == 1)
+ p->in_cmd = 0;
+ }
+
+ switch (p->cmd_termination)
+ {
+ case 0:
+ break;
+ default:
+ if (p->cmd_termination == ch)
+ p->in_cmd = 0;
+ break;
+ case CSI_ENDER:
+ if (csi_ender (ch))
+ p->in_cmd = 0;
+ break;
+ }
+
+ if (!p->in_cmd)
+ {
+ vt102_parse_esc (c);
+ p->cmd_more_bytes = 0;
+ p->cmd_termination = 0;
+ }
+ }
+ else if (p->in_escape && !ctrl_chr (ch, 0))
+ {
+ p->cmd_ptr = 0;
+ p->cmd_buf[p->cmd_ptr++] = ch;
+ p->in_escape = 0;
+
+ pre_parse_cmd (ch, p);
+
+ if (!p->in_cmd)
+ vt102_parse_esc (c);
+ }
+ else if (ch == 0x9b) /*One byte CSI */
+ {
+ p->cmd_ptr = 0;
+ p->cmd_buf[p->cmd_ptr++] = '[';
+
+ pre_parse_cmd (ch, p);
+ }
+ else
+ {
+#ifdef DEBUG
+ if (ch != 27)
+ log_f (c->l,
+ "<chr in x=%3d y=%2d aw=%d \\%03o %3d %c",
+ v->pos.x, v->pos.y, v->pending_wrap, ch, ch, safe_ch (ch));
+
+#endif
+
+ switch (ch)
+ {
+#if 0
+ /*NUL*/ case 0:
+ /*SOH*/ case 1:
+ /*STX*/ case 2: