/* $OpenBSD: alloc_ttype.c,v 1.7 2023/10/17 09:52:09 nicm Exp $ */

/****************************************************************************
 * Copyright 2018-2022,2023 Thomas E. Dickey                                *
 * Copyright 1999-2016,2017 Free Software Foundation, Inc.                  *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *  Author: Thomas E. Dickey <dickey@clark.net> 1999-on                     *
 ****************************************************************************/

/*
 * align_ttype.c --  functions for TERMTYPE
 *
 *      _nc_align_termtype()
 *      _nc_copy_termtype()
 *
 */

#include <curses.priv.h>

#include <tic.h>

MODULE_ID("$Id: alloc_ttype.c,v 1.7 2023/10/17 09:52:09 nicm Exp $")

#if NCURSES_XNAMES
/*
 * Merge the a/b lists into dst.  Both a/b are sorted (see _nc_extend_names()),
 * so we do not have to worry about order dependencies.
 */
static int
merge_names(char **dst, char **a, int na, char **b, int nb)
{
    int n = 0;
    while (na > 0 && nb > 0) {
        int cmp = strcmp(*a, *b);
        if (cmp < 0) {
            dst[n++] = *a++;
            na--;
        } else if (cmp > 0) {
            dst[n++] = *b++;
            nb--;
        } else {
            dst[n++] = *a;
            a++, b++;
            na--, nb--;
        }
    }
    while (na-- > 0) {
        dst[n++] = *a++;
    }
    while (nb-- > 0) {
        dst[n++] = *b++;
    }
    DEBUG(4, ("merge_names -> %d", n));
    return n;
}

static bool
find_name(char **table, int item, int length, const char *name)
{
    int n;
    int result = -1;

    for (n = item; n < length; ++n) {
        if (!strcmp(table[n], name)) {
            DEBUG(4, ("found name '%s' @%d", name, n));
            result = n;
            break;
        }
    }
    if (result < 0) {
        DEBUG(4, ("did not find name '%s'", name));
    }
    return (result >= 0);
}

#define EXTEND_NUM(num, ext) \
        DEBUG(4, ("extending " #num " from %d to %d", \
         to->num, (unsigned short) (to->num + (ext - to->ext)))); \
        to->num = (unsigned short) (to->num + (ext - to->ext))

static void
realign_data(TERMTYPE2 *to, char **ext_Names,
             int ext_Booleans,
             int ext_Numbers,
             int ext_Strings)
{
    int n, m, base;
    int to_Booleans = to->ext_Booleans;
    int to_Numbers = to->ext_Numbers;
    int to_Strings = to->ext_Strings;
    int to1, to2, from;

    DEBUG(4, ("realign_data %d/%d/%d vs %d/%d/%d",
              ext_Booleans,
              ext_Numbers,
              ext_Strings,
              to->ext_Booleans,
              to->ext_Numbers,
              to->ext_Strings));

    if (to->ext_Booleans != ext_Booleans) {
        to1 = 0;
        to2 = to_Booleans + to1;
        from = 0;
        EXTEND_NUM(num_Booleans, ext_Booleans);
        TYPE_REALLOC(NCURSES_SBOOL, to->num_Booleans, to->Booleans);
        for (n = to->ext_Booleans - 1,
             m = ext_Booleans - 1,
             base = to->num_Booleans - (m + 1); m >= 0; m--) {
            if (find_name(to->ext_Names, to1, to2, ext_Names[m + from])) {
                to->Booleans[base + m] = to->Booleans[base + n--];
            } else {
                to->Booleans[base + m] = FALSE;
            }
        }
        to->ext_Booleans = UShort(ext_Booleans);
    }

    if (to->ext_Numbers != ext_Numbers) {
        to1 = to_Booleans;
        to2 = to_Numbers + to1;
        from = ext_Booleans;
        EXTEND_NUM(num_Numbers, ext_Numbers);
        TYPE_REALLOC(NCURSES_INT2, to->num_Numbers, to->Numbers);
        for (n = to->ext_Numbers - 1,
             m = ext_Numbers - 1,
             base = to->num_Numbers - (m + 1); m >= 0; m--) {
            if (find_name(to->ext_Names, to1, to2, ext_Names[m + from])) {
                to->Numbers[base + m] = to->Numbers[base + n--];
            } else {
                to->Numbers[base + m] = ABSENT_NUMERIC;
            }
        }
        to->ext_Numbers = UShort(ext_Numbers);
    }

    if (to->ext_Strings != ext_Strings) {
        to1 = to_Booleans + to_Numbers;
        to2 = to_Strings + to1;
        from = ext_Booleans + ext_Numbers;
        EXTEND_NUM(num_Strings, ext_Strings);
        TYPE_REALLOC(char *, to->num_Strings, to->Strings);
        for (n = to->ext_Strings - 1,
             m = ext_Strings - 1,
             base = to->num_Strings - (m + 1); m >= 0; m--) {
            if (find_name(to->ext_Names, to1, to2, ext_Names[m + from])) {
                to->Strings[base + m] = to->Strings[base + n--];
            } else {
                to->Strings[base + m] = ABSENT_STRING;
            }
        }
        to->ext_Strings = UShort(ext_Strings);
    }
}

/*
 * Returns the first index in ext_Names[] for the given token-type
 */
static unsigned
_nc_first_ext_name(TERMTYPE2 *tp, int token_type)
{
    unsigned first;

    switch (token_type) {
    case BOOLEAN:
        first = 0;
        break;
    case NUMBER:
        first = tp->ext_Booleans;
        break;
    case STRING:
        first = (unsigned) (tp->ext_Booleans + tp->ext_Numbers);
        break;
    default:
        first = 0;
        break;
    }
    return first;
}

/*
 * Returns the last index in ext_Names[] for the given token-type
 */
static unsigned
_nc_last_ext_name(TERMTYPE2 *tp, int token_type)
{
    unsigned last;

    switch (token_type) {
    case BOOLEAN:
        last = tp->ext_Booleans;
        break;
    case NUMBER:
        last = (unsigned) (tp->ext_Booleans + tp->ext_Numbers);
        break;
    default:
    case STRING:
        last = NUM_EXT_NAMES(tp);
        break;
    }
    return last;
}

/*
 * Lookup an entry from extended-names, returning -1 if not found
 */
static int
_nc_find_ext_name(TERMTYPE2 *tp, char *name, int token_type)
{
    unsigned j;
    unsigned first = _nc_first_ext_name(tp, token_type);
    unsigned last = _nc_last_ext_name(tp, token_type);

    for (j = first; j < last; j++) {
        if (!strcmp(name, tp->ext_Names[j])) {
            return (int) j;
        }
    }
    return -1;
}

/*
 * Translate an index into ext_Names[] into the corresponding index into data
 * (e.g., Booleans[]).
 */
static int
_nc_ext_data_index(TERMTYPE2 *tp, int n, int token_type)
{
    switch (token_type) {
    case BOOLEAN:
        n += (tp->num_Booleans - tp->ext_Booleans);
        break;
    case NUMBER:
        n += (tp->num_Numbers - tp->ext_Numbers)
            - (tp->ext_Booleans);
        break;
    default:
    case STRING:
        n += (tp->num_Strings - tp->ext_Strings)
            - (tp->ext_Booleans + tp->ext_Numbers);
    }
    return n;
}

/*
 * Adjust tables to remove (not free) an extended name and its corresponding
 * data.
 */
static bool
_nc_del_ext_name(TERMTYPE2 *tp, char *name, int token_type)
{
    int first;

    if ((first = _nc_find_ext_name(tp, name, token_type)) >= 0) {
        int j;
        int last = (int) NUM_EXT_NAMES(tp) - 1;

        for (j = first; j < last; j++) {
            tp->ext_Names[j] = tp->ext_Names[j + 1];
        }
        first = _nc_ext_data_index(tp, first, token_type);
        switch (token_type) {
        case BOOLEAN:
            last = tp->num_Booleans - 1;
            for (j = first; j < last; j++)
                tp->Booleans[j] = tp->Booleans[j + 1];
            tp->ext_Booleans--;
            tp->num_Booleans--;
            break;
        case NUMBER:
            last = tp->num_Numbers - 1;
            for (j = first; j < last; j++)
                tp->Numbers[j] = tp->Numbers[j + 1];
            tp->ext_Numbers--;
            tp->num_Numbers--;
            break;
        case STRING:
            last = tp->num_Strings - 1;
            for (j = first; j < last; j++)
                tp->Strings[j] = tp->Strings[j + 1];
            tp->ext_Strings--;
            tp->num_Strings--;
            break;
        }
        return TRUE;
    }
    return FALSE;
}

/*
 * Adjust tables to insert an extended name, making room for new data.  The
 * index into the corresponding data array is returned.
 */
static int
_nc_ins_ext_name(TERMTYPE2 *tp, char *name, int token_type)
{
    unsigned first = _nc_first_ext_name(tp, token_type);
    unsigned last = _nc_last_ext_name(tp, token_type);
    unsigned total = NUM_EXT_NAMES(tp) + 1;
    unsigned j, k;

    for (j = first; j < last; j++) {
        int cmp = strcmp(name, tp->ext_Names[j]);
        if (cmp == 0)
            /* already present */
            return _nc_ext_data_index(tp, (int) j, token_type);
        if (cmp < 0) {
            break;
        }
    }

    TYPE_REALLOC(char *, total, tp->ext_Names);
    for (k = total - 1; k > j; k--)
        tp->ext_Names[k] = tp->ext_Names[k - 1];
    tp->ext_Names[j] = name;
    j = (unsigned) _nc_ext_data_index(tp, (int) j, token_type);

    switch (token_type) {
    case BOOLEAN:
        tp->ext_Booleans++;
        tp->num_Booleans++;
        TYPE_REALLOC(NCURSES_SBOOL, tp->num_Booleans, tp->Booleans);
        for (k = (unsigned) (tp->num_Booleans - 1); k > j; k--)
            tp->Booleans[k] = tp->Booleans[k - 1];
        break;
    case NUMBER:
        tp->ext_Numbers++;
        tp->num_Numbers++;
        TYPE_REALLOC(NCURSES_INT2, tp->num_Numbers, tp->Numbers);
        for (k = (unsigned) (tp->num_Numbers - 1); k > j; k--)
            tp->Numbers[k] = tp->Numbers[k - 1];
        break;
    case STRING:
        tp->ext_Strings++;
        tp->num_Strings++;
        TYPE_REALLOC(char *, tp->num_Strings, tp->Strings);
        for (k = (unsigned) (tp->num_Strings - 1); k > j; k--)
            tp->Strings[k] = tp->Strings[k - 1];
        break;
    }
    return (int) j;
}

/*
 * Look for strings that are marked cancelled, which happen to be the same name
 * as a boolean or number.  We'll get this as a special case when we get a
 * cancellation of a name that is inherited from another entry.
 */
static void
adjust_cancels(TERMTYPE2 *to, TERMTYPE2 *from)
{
    int first = to->ext_Booleans + to->ext_Numbers;
    int last = first + to->ext_Strings;
    int j, k;

    DEBUG(3, (T_CALLED("adjust_cancels(%s), from(%s)"),
              NonNull(to->term_names),
              NonNull(from->term_names)));
    for (j = first; j < last;) {
        char *name = to->ext_Names[j];
        int j_str = to->num_Strings - first - to->ext_Strings;

        if (to->Strings[j + j_str] == CANCELLED_STRING) {
            if (_nc_find_ext_name(from, to->ext_Names[j], BOOLEAN) >= 0) {
                if (_nc_del_ext_name(to, name, STRING)
                    || _nc_del_ext_name(to, name, NUMBER)) {
                    k = _nc_ins_ext_name(to, name, BOOLEAN);
                    to->Booleans[k] = FALSE;
                } else {
                    j++;
                }
            } else if (_nc_find_ext_name(from, to->ext_Names[j], NUMBER) >= 0) {
                if (_nc_del_ext_name(to, name, STRING)
                    || _nc_del_ext_name(to, name, BOOLEAN)) {
                    k = _nc_ins_ext_name(to, name, NUMBER);
                    to->Numbers[k] = CANCELLED_NUMERIC;
                } else {
                    j++;
                }
            } else if (_nc_find_ext_name(from, to->ext_Names[j], STRING) >= 0) {
                if (_nc_del_ext_name(to, name, NUMBER)
                    || _nc_del_ext_name(to, name, BOOLEAN)) {
                    k = _nc_ins_ext_name(to, name, STRING);
                    to->Strings[k] = CANCELLED_STRING;
                } else {
                    j++;
                }
            } else {
                j++;
            }
        } else {
            j++;
        }
    }
    DEBUG(3, (T_RETURN("")));
}

NCURSES_EXPORT(void)
_nc_align_termtype(TERMTYPE2 *to, TERMTYPE2 *from)
{
    int na;
    int nb;
    char **ext_Names;

    na = to ? ((int) NUM_EXT_NAMES(to)) : 0;
    nb = from ? ((int) NUM_EXT_NAMES(from)) : 0;

    DEBUG(2, (T_CALLED("_nc_align_termtype to(%d:%s), from(%d:%s)"),
              na, to ? NonNull(to->term_names) : "?",
              nb, from ? NonNull(from->term_names) : "?"));

    if (to != NULL && from != NULL && (na != 0 || nb != 0)) {
        int ext_Booleans, ext_Numbers, ext_Strings;
        bool used_ext_Names = FALSE;

        if ((na == nb)          /* check if the arrays are equivalent */
            &&(to->ext_Booleans == from->ext_Booleans)
            && (to->ext_Numbers == from->ext_Numbers)
            && (to->ext_Strings == from->ext_Strings)) {
            int n;
            bool same;

            for (n = 0, same = TRUE; n < na; n++) {
                if (strcmp(to->ext_Names[n], from->ext_Names[n])) {
                    same = FALSE;
                    break;
                }
            }
            if (same) {
                DEBUG(2, (T_RETURN("")));
                return;
            }
        }
        /*
         * This is where we pay for having a simple extension representation.
         * Allocate a new ext_Names array and merge the two ext_Names arrays
         * into it, updating to's counts for booleans, etc.  Fortunately we do
         * this only for the terminfo compiler (tic) and comparer (infocmp).
         */
        TYPE_MALLOC(char *, (size_t)(na + nb), ext_Names);

        if (to->ext_Strings && (from->ext_Booleans + from->ext_Numbers))
            adjust_cancels(to, from);

        if (from->ext_Strings && (to->ext_Booleans + to->ext_Numbers))
            adjust_cancels(from, to);

        ext_Booleans = merge_names(ext_Names,
                                   to->ext_Names,
                                   to->ext_Booleans,
                                   from->ext_Names,
                                   from->ext_Booleans);
        ext_Numbers = merge_names(ext_Names + ext_Booleans,
                                  to->ext_Names
                                  + to->ext_Booleans,
                                  to->ext_Numbers,
                                  from->ext_Names
                                  + from->ext_Booleans,
                                  from->ext_Numbers);
        ext_Strings = merge_names(ext_Names + ext_Numbers + ext_Booleans,
                                  to->ext_Names
                                  + to->ext_Booleans
                                  + to->ext_Numbers,
                                  to->ext_Strings,
                                  from->ext_Names
                                  + from->ext_Booleans
                                  + from->ext_Numbers,
                                  from->ext_Strings);
        /*
         * Now we must reallocate the Booleans, etc., to allow the data to be
         * overlaid.
         */
        if (na != (ext_Booleans + ext_Numbers + ext_Strings)) {
            realign_data(to, ext_Names, ext_Booleans, ext_Numbers, ext_Strings);
            FreeIfNeeded(to->ext_Names);
            to->ext_Names = ext_Names;
            DEBUG(2, ("realigned %d extended names for '%s' (to)",
                      NUM_EXT_NAMES(to), to->term_names));
            used_ext_Names = TRUE;
        }
        if (nb != (ext_Booleans + ext_Numbers + ext_Strings)) {
            nb = (ext_Booleans + ext_Numbers + ext_Strings);
            realign_data(from, ext_Names, ext_Booleans, ext_Numbers, ext_Strings);
            TYPE_REALLOC(char *, (size_t) nb, from->ext_Names);
            memcpy(from->ext_Names, ext_Names, sizeof(char *) * (size_t) nb);
            DEBUG(2, ("realigned %d extended names for '%s' (from)",
                      NUM_EXT_NAMES(from), from->term_names));
        }
        if (!used_ext_Names)
            free(ext_Names);
    }
    DEBUG(2, (T_RETURN("")));
}
#endif

#define srcINT 1
#define dstINT 2

/*
 * TERMTYPE and TERMTYPE2 differ only with regard to the values in Numbers.
 * Use 'mode' to decide which to use.
 */
static void
copy_termtype(TERMTYPE2 *dst, const TERMTYPE2 *src, int mode)
{
    unsigned i;
    int pass;
    char *new_table;
    size_t new_table_size;
#if NCURSES_EXT_NUMBERS
    short *oldptr = 0;
    int *newptr = 0;
#endif

    DEBUG(2, (T_CALLED("copy_termtype(dst=%p, src=%p, mode=%d)"), (void *)
              dst, (const void *) src, mode));
    *dst = *src;                /* ...to copy the sizes and string-tables */

    TYPE_MALLOC(NCURSES_SBOOL, NUM_BOOLEANS(dst), dst->Booleans);
    TYPE_MALLOC(char *, NUM_STRINGS(dst), dst->Strings);

    memcpy(dst->Booleans,
           src->Booleans,
           NUM_BOOLEANS(dst) * sizeof(dst->Booleans[0]));
    memcpy(dst->Strings,
           src->Strings,
           NUM_STRINGS(dst) * sizeof(dst->Strings[0]));

    new_table = NULL;
    new_table_size = 0;
    for (pass = 0; pass < 2; ++pass) {
        size_t str_size = 0;
        if (src->term_names != NULL) {
            if (pass) {
                dst->term_names = new_table + str_size;
                _nc_STRCPY(dst->term_names + str_size,
                           src->term_names,
                           new_table_size - str_size);
            }
            str_size += strlen(src->term_names) + 1;
        }
        for_each_string(i, src) {
            if (VALID_STRING(src->Strings[i])) {
                if (pass) {
                    _nc_STRCPY(new_table + str_size,
                               src->Strings[i],
                               new_table_size - str_size);
                    dst->Strings[i] = new_table + str_size;
                }
                str_size += strlen(src->Strings[i]) + 1;
            }
        }
        if (pass) {
            dst->str_table = new_table;
        } else {
            ++str_size;
            if ((new_table = malloc(str_size)) == NULL)
                _nc_err_abort(MSG_NO_MEMORY);
            new_table_size = str_size;
        }
    }

#if NCURSES_EXT_NUMBERS
    if ((mode & dstINT) == 0) {
        DEBUG(2, ("...convert int ->short"));
        TYPE_MALLOC(short, NUM_NUMBERS(dst), oldptr);
        ((TERMTYPE *) dst)->Numbers = oldptr;
    } else {
        DEBUG(2, ("...copy without changing size"));
        TYPE_MALLOC(int, NUM_NUMBERS(dst), newptr);
        dst->Numbers = newptr;
    }
    if ((mode == srcINT) && (oldptr != 0)) {
        DEBUG(2, ("...copy int ->short"));
        for (i = 0; i < NUM_NUMBERS(dst); ++i) {
            if (src->Numbers[i] > MAX_OF_TYPE(short)) {
                oldptr[i] = MAX_OF_TYPE(short);
            } else {
                oldptr[i] = (short) src->Numbers[i];
            }
        }
    } else if ((mode == dstINT) && (newptr != 0)) {
        DEBUG(2, ("...copy short ->int"));
        for (i = 0; i < NUM_NUMBERS(dst); ++i) {
            newptr[i] = ((const short *) (src->Numbers))[i];
        }
    } else {
        DEBUG(2, ("...copy %s without change",
                  (mode & dstINT)
                  ? "int"
                  : "short"));
        memcpy(dst->Numbers,
               src->Numbers,
               NUM_NUMBERS(dst) * ((mode & dstINT)
                                   ? sizeof(int)
                                   : sizeof(short)));
    }
#else
    (void) mode;
    TYPE_MALLOC(short, NUM_NUMBERS(dst), dst->Numbers);
    memcpy(dst->Numbers,
           src->Numbers,
           NUM_NUMBERS(dst) * sizeof(dst->Numbers[0]));
#endif

#if NCURSES_XNAMES
    if ((i = NUM_EXT_NAMES(src)) != 0) {
        TYPE_MALLOC(char *, i, dst->ext_Names);
        memcpy(dst->ext_Names, src->ext_Names, i * sizeof(char *));

        new_table = NULL;
        new_table_size = 0;
        for (pass = 0; pass < 2; ++pass) {
            size_t str_size = 0;
            char *raw_data = src->ext_str_table;
            if (raw_data != NULL) {
                for (i = 0; i < src->ext_Strings; ++i) {
                    size_t skip = strlen(raw_data) + 1;
                    if (skip != 1) {
                        if (pass) {
                            _nc_STRCPY(new_table + str_size,
                                       raw_data,
                                       new_table_size - str_size);
                        }
                        str_size += skip;
                        raw_data += skip;
                    }
                }
            }
            for (i = 0; i < NUM_EXT_NAMES(dst); ++i) {
                if (VALID_STRING(src->ext_Names[i])) {
                    if (pass) {
                        _nc_STRCPY(new_table + str_size,
                                   src->ext_Names[i],
                                   new_table_size - str_size);
                        dst->ext_Names[i] = new_table + str_size;
                    }
                    str_size += strlen(src->ext_Names[i]) + 1;
                }
            }
            if (pass) {
                dst->ext_str_table = new_table;
            } else {
                ++str_size;
                if ((new_table = calloc(str_size, 1)) == NULL)
                    _nc_err_abort(MSG_NO_MEMORY);
                new_table_size = str_size;
            }
        }
    } else {
        dst->ext_Names = 0;
    }
#endif
    DEBUG(2, (T_RETURN("")));
}

NCURSES_EXPORT(void)
_nc_copy_termtype(TERMTYPE *dst, const TERMTYPE *src)
{
    DEBUG(2, (T_CALLED("_nc_copy_termtype(dst=%p, src=%p)"), (void *) dst,
              (const void *) src));
    copy_termtype((TERMTYPE2 *) dst, (const TERMTYPE2 *) src, 0);
    DEBUG(2, (T_RETURN("")));
}

#if NCURSES_EXT_NUMBERS
NCURSES_EXPORT(void)
_nc_copy_termtype2(TERMTYPE2 *dst, const TERMTYPE2 *src)
{
    DEBUG(2, (T_CALLED("_nc_copy_termtype2(dst=%p, src=%p)"), (void *) dst,
              (const void *) src));
    copy_termtype(dst, src, srcINT | dstINT);
    DEBUG(2, (T_RETURN("")));
}

/*
 * Use this for exporting the internal TERMTYPE2 to the legacy format used via
 * the CUR macro by applications.
 */
NCURSES_EXPORT(void)
_nc_export_termtype2(TERMTYPE *dst, const TERMTYPE2 *src)
{
    DEBUG(2, (T_CALLED("_nc_export_termtype2(dst=%p, src=%p)"), (void *)
              dst, (const void *) src));
    copy_termtype((TERMTYPE2 *) dst, src, srcINT);
    DEBUG(2, (T_RETURN("")));
}
#endif /* NCURSES_EXT_NUMBERS */