/*
* $Log$
+ * Revision 1.38 2008/02/26 16:53:24 james
+ * *** empty log message ***
+ *
+ * Revision 1.37 2008/02/24 12:22:53 james
+ * *** empty log message ***
+ *
+ * Revision 1.36 2008/02/24 12:22:42 james
+ * *** empty log message ***
+ *
* Revision 1.35 2008/02/24 00:42:53 james
* *** empty log message ***
*
#include "project.h"
#include "syslog.h"
+//static char terminal_reply[]={033,0133,077,066,0143};
+static char terminal_reply[] = { 'v', 't', '1', '0', '2' };
+
+#define TABLE_LENGTH 128
+
+/* number of aditional chars after \033 ... to complete the escape if it's fixed length*/
+int vt102_cmd_length[TABLE_LENGTH]={
+['(']=1,
+[')']=1,
+['+']=1,
+['*']=1,
+['%']=1,
+['#']=1,
+['Y']=2,
+};
+
+/* method for determining end if if's not fixed length, -ve numbers from #defines, +ve are literals */
+#define CSI_ENDER -1
+int vt102_cmd_termination[TABLE_LENGTH]={
+[']']=7,
+['[']=CSI_ENDER,
+};
+
+
+
+
static inline int
safe_ch (int c)
return 1;
if ((c >= 'A') && (c <= 'Z'))
return 1;
+ if ((c == '@'))
+ return 1;
return 0;
}
-static inline int
-scs_starter (int c)
-{
- switch (c)
- {
- case '(':
- case ')':
- case '+':
- case '*':
- return 1;
- }
- return 0;
-}
-static inline int
-csi_starter (int c)
+
+/*Stay or enter command acquision and exit after n more chars*/
+void redispatch_with_more(VT102_parser *p,int n)
{
- switch (c)
- {
- case '[':
- return 1;
- }
- return 0;
}
static inline int
}
+void
+vt102_cursor_retreat_line (Context * c)
+{
+ VT102 *v = c->v;
+ int couldscroll = in_margins (v, v->pos);
+
+/*have wraped off end of last line in scrolling region */
+/* (|| not necessary, but shuts compiler up */
+ if (((v->pos.y == v->top_margin.y) || (v->pos.y == v->screen_start.y)) &&
+ (couldscroll))
+ {
+ vt102_log_line (c, v->pos.y);
+
+ crt_scroll_down (&v->crt, v->top_margin, v->bottom_margin, 1, v->color);
+ return;
+ }
+
+ if (v->pos.y != v->screen_start.y)
+ v->pos.y--;
+ v->pending_wrap = 0;
+}
+
+
void
vt102_do_pending_wrap (Context * c)
{
void
-vt102_cursor_retard (VT102 * v)
+vt102_cursor_retreat (VT102 * v)
{
if (v->pos.x != v->top_margin.x)
v->pos.x--;
}
void
-vt102_cursor_retard_tab (VT102 * v)
+vt102_cursor_retreat_tab (VT102 * v)
{
if (v->pos.x == v->top_margin.x)
return;
}
void
-vt102_parse_esc (Context * c, int ch)
+vt102_parse_esc (Context * c)
{
VT102 *v = c->v;
- switch (ch)
- {
+ VT102_parser *p=&v->parser;
+
+/*If you edit this switch don't forget to edit the length and termination tables*/
+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 'E':
if (v->pos.y == v->bottom_margin.y)
{
case 'H':
v->tabs[v->pos.x]++;
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 = { VT102_COLS - 1, v->pos.y };
+ crt_erase (&v->crt, v->pos, le, 1, v->color);
+ }
+ break;
case 'M':
if (v->pos.y == v->top_margin.y)
{
vt102_cursor_relative (v, 0, -1);
}
break;
+
+ case 'Y':
+ vt102_cursor_absolute (v, p->cmd_buf[2] - 040, p->cmd_buf[1] - 040);
+ break;
+ case 'Z':
+ if (c->t)
+ {
+ c->t->xmit (c->t, terminal_reply, sizeof (terminal_reply));
+ }
+ break;
+ case '#':
+ {
+ switch(p->cmd_buf[1]) {
+ case '8':/*DECALN*/
+ {
+ int i;
+ crt_erase (&v->crt, v->screen_start, v->screen_end, 1, CRT_NORMAL_COLOR);
+ for (i=0;i<CRT_ADDR_POS(&v->screen_end);++i)
+ v->crt.screen[i].chr='E';
+ }
+ 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 '>':
v->application_keypad_mode = 0;
break;
- case ']':
- v->parser.ignore_until_bell++;
+ 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__, ch, safe_ch (ch));
+ __LINE__, p->cmd_buf[0], safe_ch (p->cmd_buf[0]));
;
}
break;
case 'Z':
while (narg--)
- vt102_cursor_retard_tab (c->v);
+ vt102_cursor_retreat_tab (c->v);
break;
case '`':
vt102_cursor_absolute (v, narg - 1, v->pos.y);
void
vt102_parser_reset (VT102_parser * p)
{
- p->in_csi = 0;
+ p->in_cmd = 0;
+ p->cmd_more_bytes=0;
+ p->cmd_termination=0;
p->in_escape = 0;
- p->ignore_until_bell = 0;
}
vt102_reset_tabs (v);
}
+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 pc %d %d %d %2d %2d %d", ch, safe_ch (ch),
- p->ignore_until_bell, p->in_escape, p->in_csi, v->pos.x, v->pos.y,
+#if 1
+ log_f (c->l, "char %3d %c ie=%d ic=%d cmb=%d ct=%d %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
#endif
+#if 0
+ if (p->dca_ptr == 2)
+ {
+ p->in_dca = 0;
+ }
+#endif
if (ch == SYM_CHAR_RESET)
{
vt102_reset_state (v);
}
- if (p->ignore_until_bell)
+ else if (p->in_cmd)
{
- if (ch == 7)
- p->ignore_until_bell = 0;
- }
- else if (p->in_csi)
- {
- p->csi_buf[p->csi_ptr++] = ch;
- if (csi_ender (ch) || (p->csi_ptr == VT102_CSI_LEN))
- {
- if (csi_starter (p->csi_buf[0]))
- {
- vt102_parse_csi (c, p->csi_buf, p->csi_ptr);
- }
- else if (scs_starter (p->csi_buf[0]))
- {
- vt102_scs (c, p->csi_buf[0], p->csi_buf[1]);
- }
- else
- {
- log_f (c->l,
- "<%s:%d no dispatcher for sequence starting \\033 \\%03o (ESC %c)>",
- __FILE__, __LINE__, p->csi_buf[0],
- safe_ch (p->csi_buf[0]));
- }
- p->in_csi = 0;
- }
+ p->cmd_buf[p->cmd_ptr++] = ch;
+ 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;
+ }
}
else if (p->in_escape)
{
- if (csi_starter (ch) || scs_starter (ch))
- {
- p->csi_ptr = 0;
- p->csi_buf[p->csi_ptr++] = ch;
- p->in_csi++;
- p->in_escape = 0;
- }
- else
- {
- p->in_escape = 0;
- vt102_parse_esc (c, ch);
- }
+
+ 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->csi_ptr = 0;
- p->csi_buf[p->csi_ptr++] = '[';
- p->in_csi++;
+ p->cmd_ptr = 0;
+ p->cmd_buf[p->cmd_ptr++] = '[';
+
+ pre_parse_cmd(ch,p);
}
else
{
break;
/*ENQ*/ case 5:
if (c->t)
- c->t->xmit (c->t, "vt102", 5);
+ {
+ c->t->xmit (c->t, "vt102", 5);
+ }
break;
/*ACK*/ case 6:
/*BEL*/ case 7:
break;
/*BS*/ case 8:
- vt102_cursor_retard (c->v);
+ vt102_cursor_retreat (c->v);
break;
/*HT*/ case 9:
vt102_cursor_advance_tab (c->v);
~ianmdlvl / sympathy.git / blobdiff