Пример #1
0
static void
postprocess_terminfo(TERMTYPE * tp)
{
    /*
     * TERMINFO-TO-TERMINFO MAPPINGS FOR SOURCE TRANSLATION
     * ----------------------------------------------------------------------
     */

    /*
     * Translate AIX forms characters.
     */
    if (PRESENT(box_chars_1)) {
	char buf2[MAX_TERMCAP_LENGTH];
	string_desc result;

	_nc_str_init(&result, buf2, sizeof(buf2));
	_nc_safe_strcat(&result, acs_chars);

	append_acs0 (&result, 'l', box_chars_1[0]);	/* ACS_ULCORNER */
	append_acs0 (&result, 'q', box_chars_1[1]);	/* ACS_HLINE */
	append_acs0 (&result, 'k', box_chars_1[2]);	/* ACS_URCORNER */
	append_acs0 (&result, 'x', box_chars_1[3]);	/* ACS_VLINE */
	append_acs0 (&result, 'j', box_chars_1[4]);	/* ACS_LRCORNER */
	append_acs0 (&result, 'm', box_chars_1[5]);	/* ACS_LLCORNER */
	append_acs0 (&result, 'w', box_chars_1[6]);	/* ACS_TTEE */
	append_acs0 (&result, 'u', box_chars_1[7]);	/* ACS_RTEE */
	append_acs0 (&result, 'v', box_chars_1[8]);	/* ACS_BTEE */
	append_acs0 (&result, 't', box_chars_1[9]);	/* ACS_LTEE */
	append_acs0 (&result, 'n', box_chars_1[10]);	/* ACS_PLUS */

	if (buf2[0]) {
	    acs_chars = _nc_save_str(buf2);
	    _nc_warning("acsc string synthesized from AIX capabilities");
	    box_chars_1 = ABSENT_STRING;
	}
    }
    /*
     * ----------------------------------------------------------------------
     */
}
Пример #2
0
static int
relative_move(string_desc * target, int from_y, int from_x, int to_y, int
	      to_x, bool ovw)
/* move via local motions (cuu/cuu1/cud/cud1/cub1/cub/cuf1/cuf/vpa/hpa) */
{
    string_desc save;
    int n, vcost = 0, hcost = 0;

    (void) _nc_str_copy(&save, target);

    if (to_y != from_y) {
	vcost = INFINITY;

	if (row_address != 0
	    && _nc_safe_strcat(target, TPARM_1(row_address, to_y))) {
	    vcost = SP->_vpa_cost;
	}

	if (to_y > from_y) {
	    n = (to_y - from_y);

	    if (parm_down_cursor
		&& SP->_cud_cost < vcost
		&& _nc_safe_strcat(_nc_str_copy(target, &save),
				   TPARM_1(parm_down_cursor, n))) {
		vcost = SP->_cud_cost;
	    }

	    if (cursor_down
		&& (*cursor_down != '\n' || SP->_nl)
		&& (n * SP->_cud1_cost < vcost)) {
		vcost = repeated_append(_nc_str_copy(target, &save), 0,
					SP->_cud1_cost, n, cursor_down);
	    }
	} else {		/* (to_y < from_y) */
	    n = (from_y - to_y);

	    if (parm_up_cursor
		&& SP->_cuu_cost < vcost
		&& _nc_safe_strcat(_nc_str_copy(target, &save),
				   TPARM_1(parm_up_cursor, n))) {
		vcost = SP->_cuu_cost;
	    }

	    if (cursor_up && (n * SP->_cuu1_cost < vcost)) {
		vcost = repeated_append(_nc_str_copy(target, &save), 0,
					SP->_cuu1_cost, n, cursor_up);
	    }
	}

	if (vcost == INFINITY)
	    return (INFINITY);
    }

    save = *target;

    if (to_x != from_x) {
	char str[OPT_SIZE];
	string_desc check;

	hcost = INFINITY;

	if (column_address
	    && _nc_safe_strcat(_nc_str_copy(target, &save),
			       TPARM_1(column_address, to_x))) {
	    hcost = SP->_hpa_cost;
	}

	if (to_x > from_x) {
	    n = to_x - from_x;

	    if (parm_right_cursor
		&& SP->_cuf_cost < hcost
		&& _nc_safe_strcat(_nc_str_copy(target, &save),
				   TPARM_1(parm_right_cursor, n))) {
		hcost = SP->_cuf_cost;
	    }

	    if (cursor_right) {
		int lhcost = 0;

		(void) _nc_str_init(&check, str, sizeof(str));

#if USE_HARD_TABS
		/* use hard tabs, if we have them, to do as much as possible */
		if (init_tabs > 0 && tab) {
		    int nxt, fr;

		    for (fr = from_x; (nxt = NEXTTAB(fr)) <= to_x; fr = nxt) {
			lhcost = repeated_append(&check, lhcost,
						 SP->_ht_cost, 1, tab);
			if (lhcost == INFINITY)
			    break;
		    }

		    n = to_x - fr;
		    from_x = fr;
		}
#endif /* USE_HARD_TABS */

		if (n <= 0 || n >= (int) check.s_size)
		    ovw = FALSE;
#if BSD_TPUTS
		/*
		 * If we're allowing BSD-style padding in tputs, don't generate
		 * a string with a leading digit.  Otherwise, that will be
		 * interpreted as a padding value rather than sent to the
		 * screen.
		 */
		if (ovw
		    && n > 0
		    && n < (int) check.s_size
		    && vcost == 0
		    && str[0] == '\0') {
		    int wanted = CharOf(WANT_CHAR(to_y, from_x));
		    if (is8bits(wanted) && isdigit(wanted))
			ovw = FALSE;
		}
#endif
		/*
		 * If we have no attribute changes, overwrite is cheaper.
		 * Note: must suppress this by passing in ovw = FALSE whenever
		 * WANT_CHAR would return invalid data.  In particular, this
		 * is true between the time a hardware scroll has been done
		 * and the time the structure WANT_CHAR would access has been
		 * updated.
		 */
		if (ovw) {
		    int i;

		    for (i = 0; i < n; i++) {
			NCURSES_CH_T ch = WANT_CHAR(to_y, from_x + i);
			if (!SameAttrOf(ch, SCREEN_ATTRS(SP))
#if USE_WIDEC_SUPPORT
			    || !Charable(ch)
#endif
			    ) {
			    ovw = FALSE;
			    break;
			}
		    }
		}
		if (ovw) {
		    int i;

		    for (i = 0; i < n; i++)
			*check.s_tail++ = CharOf(WANT_CHAR(to_y, from_x + i));
		    *check.s_tail = '\0';
		    check.s_size -= n;
		    lhcost += n * SP->_char_padding;
		} else {
		    lhcost = repeated_append(&check, lhcost, SP->_cuf1_cost,
					     n, cursor_right);
		}

		if (lhcost < hcost
		    && _nc_safe_strcat(_nc_str_copy(target, &save), str)) {
		    hcost = lhcost;
		}
	    }
	} else {		/* (to_x < from_x) */
	    n = from_x - to_x;

	    if (parm_left_cursor
		&& SP->_cub_cost < hcost
		&& _nc_safe_strcat(_nc_str_copy(target, &save),
				   TPARM_1(parm_left_cursor, n))) {
		hcost = SP->_cub_cost;
	    }

	    if (cursor_left) {
		int lhcost = 0;

		(void) _nc_str_init(&check, str, sizeof(str));

#if USE_HARD_TABS
		if (init_tabs > 0 && back_tab) {
		    int nxt, fr;

		    for (fr = from_x; (nxt = LASTTAB(fr)) >= to_x; fr = nxt) {
			lhcost = repeated_append(&check, lhcost,
						 SP->_cbt_cost, 1, back_tab);
			if (lhcost == INFINITY)
			    break;
		    }

		    n = fr - to_x;
		}
#endif /* USE_HARD_TABS */

		lhcost = repeated_append(&check, lhcost, SP->_cub1_cost, n, cursor_left);

		if (lhcost < hcost
		    && _nc_safe_strcat(_nc_str_copy(target, &save), str)) {
		    hcost = lhcost;
		}
	    }
	}

	if (hcost == INFINITY)
	    return (INFINITY);
    }

    return (vcost + hcost);
}
Пример #3
0
static void
postprocess_termcap(TERMTYPE * tp, bool has_base)
{
    char buf[MAX_LINE * 2 + 2];
    string_desc result;

    /*
     * TERMCAP DEFAULTS AND OBSOLETE-CAPABILITY TRANSLATIONS
     *
     * This first part of the code is the functional inverse of the
     * fragment in capdefaults.c.
     * ----------------------------------------------------------------------
     */

    /* if there was a tc entry, assume we picked up defaults via that */
    if (!has_base) {
	if (WANTED(init_3string) && termcap_init2)
	    init_3string = _nc_save_str(termcap_init2);

	if (WANTED(reset_2string) && termcap_reset)
	    reset_2string = _nc_save_str(termcap_reset);

	if (WANTED(carriage_return)) {
	    if (carriage_return_delay > 0) {
		sprintf(buf, "%s$<%d>", C_CR, carriage_return_delay);
		carriage_return = _nc_save_str(buf);
	    } else
		carriage_return = _nc_save_str(C_CR);
	}
	if (WANTED(cursor_left)) {
	    if (backspace_delay > 0) {
		sprintf(buf, "%s$<%d>", C_BS, backspace_delay);
		cursor_left = _nc_save_str(buf);
	    } else if (backspaces_with_bs == 1)
		cursor_left = _nc_save_str(C_BS);
	    else if (PRESENT(backspace_if_not_bs))
		cursor_left = backspace_if_not_bs;
	}
	/* vi doesn't use "do", but it does seems to use nl (or '\n') instead */
	if (WANTED(cursor_down)) {
	    if (PRESENT(linefeed_if_not_lf))
		cursor_down = linefeed_if_not_lf;
	    else if (linefeed_is_newline != 1) {
		if (new_line_delay > 0) {
		    sprintf(buf, "%s$<%d>", C_LF, new_line_delay);
		    cursor_down = _nc_save_str(buf);
		} else
		    cursor_down = _nc_save_str(C_LF);
	    }
	}
	if (WANTED(scroll_forward) && crt_no_scrolling != 1) {
	    if (PRESENT(linefeed_if_not_lf))
		cursor_down = linefeed_if_not_lf;
	    else if (linefeed_is_newline != 1) {
		if (new_line_delay > 0) {
		    sprintf(buf, "%s$<%d>", C_LF, new_line_delay);
		    scroll_forward = _nc_save_str(buf);
		} else
		    scroll_forward = _nc_save_str(C_LF);
	    }
	}
	if (WANTED(newline)) {
	    if (linefeed_is_newline == 1) {
		if (new_line_delay > 0) {
		    sprintf(buf, "%s$<%d>", C_LF, new_line_delay);
		    newline = _nc_save_str(buf);
		} else
		    newline = _nc_save_str(C_LF);
	    } else if (PRESENT(carriage_return) && PRESENT(scroll_forward)) {
		_nc_str_init(&result, buf, sizeof(buf));
		if (_nc_safe_strcat(&result, carriage_return)
		 && _nc_safe_strcat(&result, scroll_forward))
		    newline = _nc_save_str(buf);
	    } else if (PRESENT(carriage_return) && PRESENT(cursor_down)) {
		_nc_str_init(&result, buf, sizeof(buf));
		if (_nc_safe_strcat(&result, carriage_return)
		 && _nc_safe_strcat(&result, cursor_down))
		    newline = _nc_save_str(buf);
	    }
	}
    }

    /*
     * Inverse of capdefaults.c code ends here.
     * ----------------------------------------------------------------------
     *
     * TERMCAP-TO TERMINFO MAPPINGS FOR SOURCE TRANSLATION
     *
     * These translations will *not* be inverted by tgetent().
     */

    if (!has_base) {
	/*
	 * We wait until now to decide if we've got a working cr because even
	 * one that doesn't work can be used for newline. Unfortunately the
	 * space allocated for it is wasted.
	 */
	if (return_does_clr_eol == 1 || no_correctly_working_cr == 1)
	    carriage_return = ABSENT_STRING;

	/*
	 * Supposedly most termcap entries have ta now and '\t' is no longer a
	 * default, but it doesn't seem to be true...
	 */
	if (WANTED(tab)) {
	    if (horizontal_tab_delay > 0) {
		sprintf(buf, "%s$<%d>", C_HT, horizontal_tab_delay);
		tab = _nc_save_str(buf);
	    } else
		tab = _nc_save_str(C_HT);
	}
	if (init_tabs == ABSENT_NUMERIC && has_hardware_tabs == TRUE)
	    init_tabs = 8;

	/*
	 * Assume we can beep with ^G unless we're given bl@.
	 */
	if (WANTED(bell))
	    bell = _nc_save_str("\007");
    }

    /*
     * Translate the old termcap :pt: capability to it#8 + ht=\t
     */
    if (has_hardware_tabs == TRUE) {
	if (init_tabs != 8 && init_tabs != ABSENT_NUMERIC)
	    _nc_warning("hardware tabs with a width other than 8: %d", init_tabs);
	else {
	    if (tab && _nc_capcmp(tab, C_HT))
		_nc_warning("hardware tabs with a non-^I tab string %s",
			    _nc_visbuf(tab));
	    else {
		if (WANTED(tab))
		    tab = _nc_save_str(C_HT);
		init_tabs = 8;
	    }
	}
    }
    /*
     * Now translate the ko capability, if there is one.  This
     * isn't from mytinfo...
     */
    if (PRESENT(other_non_function_keys)) {
	char *base = other_non_function_keys;
	char *bp, *cp, *dp;
	struct name_table_entry const *from_ptr;
	struct name_table_entry const *to_ptr;
	assoc const *ap;
	char buf2[MAX_TERMINFO_LENGTH];
	bool foundim;

	/* we're going to use this for a special case later */
	dp = strchr(other_non_function_keys, 'i');
	foundim = (dp != 0) && (dp[1] == 'm');

	/* look at each comma-separated capability in the ko string... */
	for (base = other_non_function_keys;
	     (cp = strchr(base, ',')) != 0;
	     base = cp + 1) {
	    size_t len = cp - base;

	    for (ap = ko_xlate; ap->from; ap++)
		if (len == strlen(ap->from)
		    && strncmp(ap->from, base, len) == 0)
		    break;
	    if (!ap->to) {
		_nc_warning("unknown capability `%.*s' in ko string",
			    (int) len, base);
		continue;
	    } else if (ap->to == CANCELLED_STRING)	/* ignore it */
		continue;

	    /* now we know we found a match in ko_table, so... */

	    from_ptr = _nc_find_entry(ap->from, _nc_cap_hash_table);
	    to_ptr = _nc_find_entry(ap->to, _nc_info_hash_table);

	    if (!from_ptr || !to_ptr)	/* should never happen! */
		_nc_err_abort("ko translation table is invalid, I give up");

	    if (WANTED(tp->Strings[from_ptr->nte_index])) {
		_nc_warning("no value for ko capability %s", ap->from);
		continue;
	    }

	    if (tp->Strings[to_ptr->nte_index]) {
		/* There's no point in warning about it if it's the same
		 * string; that's just an inefficiency.
		 */
		if (strcmp(
			      tp->Strings[from_ptr->nte_index],
			      tp->Strings[to_ptr->nte_index]) != 0)
		    _nc_warning("%s (%s) already has an explicit value %s, ignoring ko",
				ap->to, ap->from,
				_nc_visbuf(tp->Strings[to_ptr->nte_index]));
		continue;
	    }

	    /*
	     * The magic moment -- copy the mapped key string over,
	     * stripping out padding.
	     */
	    for (dp = buf2, bp = tp->Strings[from_ptr->nte_index]; *bp; bp++) {
		if (bp[0] == '$' && bp[1] == '<') {
		    while (*bp && *bp != '>') {
			++bp;
		    }
		} else
		    *dp++ = *bp;
	    }
	    *dp++ = '\0';

	    tp->Strings[to_ptr->nte_index] = _nc_save_str(buf2);
	}

	/*
	 * Note: ko=im and ko=ic both want to grab the `Insert'
	 * keycap.  There's a kich1 but no ksmir, so the ic capability
	 * got mapped to kich1 and im to kIC to avoid a collision.
	 * If the description has im but not ic, hack kIC back to kich1.
	 */
	if (foundim && WANTED(key_ic) && key_sic) {
	    key_ic = key_sic;
	    key_sic = ABSENT_STRING;
	}
    }

    if (!hard_copy) {
	if (WANTED(key_backspace))
	    key_backspace = _nc_save_str(C_BS);
	if (WANTED(key_left))
	    key_left = _nc_save_str(C_BS);
	if (WANTED(key_down))
	    key_down = _nc_save_str(C_LF);
    }

    /*
     * Translate XENIX forms characters.
     */
    if (PRESENT(acs_ulcorner) ||
	PRESENT(acs_llcorner) ||
	PRESENT(acs_urcorner) ||
	PRESENT(acs_lrcorner) ||
	PRESENT(acs_ltee) ||
	PRESENT(acs_rtee) ||
	PRESENT(acs_btee) ||
	PRESENT(acs_ttee) ||
	PRESENT(acs_hline) ||
	PRESENT(acs_vline) ||
	PRESENT(acs_plus)) {
	char buf2[MAX_TERMCAP_LENGTH];

	_nc_str_init(&result, buf2, sizeof(buf2));
	_nc_safe_strcat(&result, acs_chars);

	append_acs (&result, 'j', acs_lrcorner);
	append_acs (&result, 'k', acs_urcorner);
	append_acs (&result, 'l', acs_ulcorner);
	append_acs (&result, 'm', acs_llcorner);
	append_acs (&result, 'n', acs_plus);
	append_acs (&result, 'q', acs_hline);
	append_acs (&result, 't', acs_ltee);
	append_acs (&result, 'u', acs_rtee);
	append_acs (&result, 'v', acs_btee);
	append_acs (&result, 'w', acs_ttee);
	append_acs (&result, 'x', acs_vline);

	if (buf2[0]) {
	    acs_chars = _nc_save_str(buf2);
	    _nc_warning("acsc string synthesized from XENIX capabilities");
	}
    } else if (acs_chars == 0
	       && enter_alt_charset_mode != 0
	       && exit_alt_charset_mode != 0) {
	acs_chars =
	    _nc_save_str("``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~");
    }
}
Пример #4
0
_nc_str_null
(string_desc * dst, size_t len)
{
    return _nc_str_init(dst, 0, len);
}