Base version of ncurses-5.7 library
diff --git a/test/demo_forms.c b/test/demo_forms.c
new file mode 100644
index 0000000..0d6a571
--- /dev/null
+++ b/test/demo_forms.c
@@ -0,0 +1,538 @@
+/****************************************************************************
+ * Copyright (c) 2003-2007,2008 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.                                                           *
+ ****************************************************************************/
+/*
+ * $Id: demo_forms.c,v 1.30 2008/10/18 20:38:20 tom Exp $
+ *
+ * Demonstrate a variety of functions from the form library.
+ * Thomas Dickey - 2003/4/26
+ */
+/*
+TYPE_ENUM			-
+TYPE_REGEXP			-
+dup_field			-
+field_init			-
+field_just			-
+field_term			-
+form_init			-
+form_opts			-
+form_opts_off			-
+form_opts_on			-
+form_request_by_name		-
+form_term			-
+form_userptr			-
+free_fieldtype			-
+link_field			-
+link_fieldtype			-
+move_field			-
+new_page			-
+pos_form_cursor			-
+set_field_init			-
+set_field_term			-
+set_fieldtype_arg		-
+set_fieldtype_choice		-
+set_form_fields			-
+set_form_init			-
+set_form_opts			-
+set_form_page			-
+set_form_term			-
+set_form_userptr		-
+set_max_field			-
+*/
+
+#include <test.priv.h>
+
+#if USE_LIBFORM
+
+#include <edit_field.h>
+
+static int d_option = 0;
+static int j_value = 0;
+static int m_value = 0;
+static int o_value = 0;
+static char *t_value = 0;
+
+static FIELD *
+make_label(int frow, int fcol, NCURSES_CONST char *label)
+{
+    FIELD *f = new_field(1, (int) strlen(label), frow, fcol, 0, 0);
+
+    if (f) {
+	set_field_buffer(f, 0, label);
+	set_field_opts(f, (int) (field_opts(f) & ~O_ACTIVE));
+    }
+    return (f);
+}
+
+/*
+ * Define each field with an extra one, for reflecting "actual" text.
+ */
+static FIELD *
+make_field(int frow, int fcol, int rows, int cols)
+{
+    FIELD *f = new_field(rows, cols, frow, fcol, o_value, 1);
+
+    if (f) {
+	set_field_back(f, A_UNDERLINE);
+	/*
+	 * If -j and -d options are combined, -j loses.  It is documented in
+	 * "Character User Interface Programming", page 12-15 that setting
+	 * O_STATIC off makes the form library ignore justification.
+	 */
+	set_field_just(f, j_value);
+	if (d_option) {
+	    if (has_colors()) {
+		set_field_fore(f, COLOR_PAIR(2));
+		set_field_back(f, A_UNDERLINE | COLOR_PAIR(3));
+	    } else {
+		set_field_fore(f, A_BOLD);
+	    }
+	    /*
+	     * The field_opts_off() call dumps core with Solaris curses,
+	     * but that is a known bug in Solaris' form library -TD
+	     */
+	    field_opts_off(f, O_STATIC);
+	    set_max_field(f, m_value);
+	}
+
+	/*
+	 * The userptr is used in edit_field.c's inactive_field().
+	 */
+	set_field_userptr(f, (void *) (long) field_back(f));
+	if (t_value)
+	    set_field_buffer(f, 0, t_value);
+    }
+    return (f);
+}
+
+static void
+display_form(FORM * f)
+{
+    WINDOW *w;
+    int rows, cols;
+
+    scale_form(f, &rows, &cols);
+
+    /*
+     * Put the form at the upper-left corner of the display, with just a box
+     * around it.
+     */
+    if ((w = newwin(rows + 2, cols + 4, 0, 0)) != (WINDOW *) 0) {
+	set_form_win(f, w);
+	set_form_sub(f, derwin(w, rows, cols, 1, 2));
+	box(w, 0, 0);
+	keypad(w, TRUE);
+    }
+
+    if (post_form(f) != E_OK)
+	wrefresh(w);
+}
+
+static void
+erase_form(FORM * f)
+{
+    WINDOW *w = form_win(f);
+    WINDOW *s = form_sub(f);
+
+    unpost_form(f);
+    werase(w);
+    wrefresh(w);
+    delwin(s);
+    delwin(w);
+}
+
+static void
+show_insert_mode(bool insert_mode)
+{
+    mvaddstr(5, 57, (insert_mode
+		     ? "form_status: insert "
+		     : "form_status: overlay"));
+}
+
+#define O_SELECTABLE (O_ACTIVE | O_VISIBLE)
+
+static FIELD *
+another_field(FORM * form, FIELD * field)
+{
+    FIELD **f = form_fields(form);
+    FIELD *result = 0;
+    int n;
+
+    for (n = 0; f[n] != 0; ++n) {
+	if (f[n] != field) {
+	    result = f[n];
+	    field_opts_on(result, O_SELECTABLE);
+	    break;
+	}
+    }
+    return result;
+}
+
+static int
+my_form_driver(FORM * form, int c)
+{
+    static bool insert_mode = TRUE;
+    FIELD *field;
+
+    switch (c) {
+    case MY_QUIT:
+	if (form_driver(form, REQ_VALIDATION) == E_OK)
+	    return (TRUE);
+	break;
+    case MY_HELP:
+	help_edit_field();
+	break;
+    case MY_EDT_MODE:
+	if ((field = current_field(form)) != 0) {
+	    set_current_field(form, another_field(form, field));
+	    if (field_opts(field) & O_EDIT) {
+		field_opts_off(field, O_EDIT);
+		set_field_status(field, 0);
+	    } else {
+		field_opts_on(field, O_EDIT);
+	    }
+	    set_current_field(form, field);
+	}
+	break;
+    case MY_INS_MODE:
+	/* there should be a form_status() function, but there is none */
+	if (!insert_mode) {
+	    if (form_driver(form, REQ_INS_MODE) == E_OK) {
+		insert_mode = TRUE;
+	    }
+	} else {
+	    if (form_driver(form, REQ_OVL_MODE) == E_OK) {
+		insert_mode = FALSE;
+	    }
+	}
+	show_insert_mode(insert_mode);
+	refresh();
+	break;
+    default:
+	beep();
+	break;
+    }
+    return (FALSE);
+}
+
+static void
+show_current_field(WINDOW *win, FORM * form)
+{
+    FIELD *field;
+    FIELDTYPE *type;
+    char *buffer;
+    int nbuf;
+    int field_rows, field_cols, field_max;
+
+    if (has_colors()) {
+	wbkgd(win, COLOR_PAIR(1));
+    }
+    werase(win);
+    wprintw(win, "Cursor: %d,%d", form->currow, form->curcol);
+    if (data_ahead(form))
+	waddstr(win, " ahead");
+    if (data_behind(form))
+	waddstr(win, " behind");
+    waddch(win, '\n');
+    if ((field = current_field(form)) != 0) {
+	wprintw(win, "Page %d%s, Field %d/%d%s:",
+		form_page(form),
+		new_page(field) ? "*" : "",
+		field_index(field), field_count(form),
+		field_arg(field) ? "(arg)" : "");
+	if ((type = field_type(field)) != 0) {
+	    if (type == TYPE_ALNUM)
+		waddstr(win, "ALNUM");
+	    else if (type == TYPE_ALPHA)
+		waddstr(win, "ALPHA");
+	    else if (type == TYPE_ENUM)
+		waddstr(win, "ENUM");
+	    else if (type == TYPE_INTEGER)
+		waddstr(win, "INTEGER");
+#ifdef NCURSES_VERSION
+	    else if (type == TYPE_IPV4)
+		waddstr(win, "IPV4");
+#endif
+	    else if (type == TYPE_NUMERIC)
+		waddstr(win, "NUMERIC");
+	    else if (type == TYPE_REGEXP)
+		waddstr(win, "REGEXP");
+	    else
+		waddstr(win, "other");
+	}
+
+	if (field_opts(field) & O_EDIT)
+	    waddstr(win, " editable");
+	else
+	    waddstr(win, " readonly");
+
+	if (field_status(field))
+	    waddstr(win, " modified");
+
+	if (dynamic_field_info(field, &field_rows, &field_cols, &field_max)
+	    != ERR) {
+	    wprintw(win, " size %dx%d (max %d)",
+		    field_rows, field_cols, field_max);
+	}
+
+	waddch(win, ' ');
+	wattrset(win, field_fore(field));
+	waddstr(win, "fore");
+	wattroff(win, field_fore(field));
+
+	waddch(win, '/');
+
+	wattrset(win, field_back(field));
+	waddstr(win, "back");
+	wattroff(win, field_back(field));
+
+	wprintw(win, ", pad '%c'",
+		field_pad(field));
+
+	waddstr(win, "\n");
+	for (nbuf = 0; nbuf <= 2; ++nbuf) {
+	    if ((buffer = field_buffer(field, nbuf)) != 0) {
+		wprintw(win, "buffer %d:", nbuf);
+		wattrset(win, A_REVERSE);
+		waddstr(win, buffer);
+		wattroff(win, A_REVERSE);
+		waddstr(win, "\n");
+	    }
+	}
+    }
+    wrefresh(win);
+}
+
+static void
+demo_forms(void)
+{
+    WINDOW *w;
+    FORM *form;
+    FIELD *f[100];		/* FIXME memset to zero */
+    int finished = 0, c;
+    unsigned n = 0;
+    int pg;
+    WINDOW *also;
+
+#ifdef NCURSES_MOUSE_VERSION
+    mousemask(ALL_MOUSE_EVENTS, (mmask_t *) 0);
+#endif
+
+    help_edit_field();
+
+    mvaddstr(4, 57, "Forms Entry Test");
+    show_insert_mode(TRUE);
+
+    refresh();
+
+    /* describe the form */
+    memset(f, 0, sizeof(f));
+    for (pg = 0; pg < 4; ++pg) {
+	char label[80];
+	sprintf(label, "Sample Form Page %d", pg + 1);
+	f[n++] = make_label(0, 15, label);
+	set_new_page(f[n - 1], TRUE);
+
+	switch (pg) {
+	default:
+	    f[n++] = make_label(2, 0, "Last Name");
+	    f[n++] = make_field(3, 0, 1, 18);
+	    set_field_type(f[n - 1], TYPE_ALPHA, 1);
+
+	    f[n++] = make_label(2, 20, "First Name");
+	    f[n++] = make_field(3, 20, 1, 12);
+	    set_field_type(f[n - 1], TYPE_ALPHA, 1);
+
+	    f[n++] = make_label(2, 34, "Middle Name");
+	    f[n++] = make_field(3, 34, 1, 12);
+	    set_field_type(f[n - 1], TYPE_ALPHA, 1);
+	    break;
+	case 1:
+	    f[n++] = make_label(2, 0, "Last Name");
+	    f[n++] = make_field(3, 0, 1, 18);
+	    set_field_type(f[n - 1], TYPE_ALPHA, 1);
+
+	    f[n++] = make_label(2, 20, "First Name");
+	    f[n++] = make_field(3, 20, 1, 12);
+	    set_field_type(f[n - 1], TYPE_ALPHA, 1);
+
+	    f[n++] = make_label(2, 34, "MI");
+	    f[n++] = make_field(3, 34, 1, 1);
+	    set_field_pad(f[n - 1], '?');
+	    set_field_type(f[n - 1], TYPE_ALPHA, 1);
+	    break;
+	case 2:
+	    f[n++] = make_label(2, 0, "Host Name");
+	    f[n++] = make_field(3, 0, 1, 18);
+	    set_field_type(f[n - 1], TYPE_ALNUM, 1);
+
+#ifdef NCURSES_VERSION
+	    f[n++] = make_label(2, 20, "IP Address");
+	    f[n++] = make_field(3, 20, 1, 12);
+	    set_field_type(f[n - 1], TYPE_IPV4, 1);
+#endif
+
+	    break;
+
+	case 3:
+	    f[n++] = make_label(2, 0, "Four digits");
+	    f[n++] = make_field(3, 0, 1, 18);
+	    set_field_type(f[n - 1], TYPE_INTEGER, 4, 0, 0);
+
+	    f[n++] = make_label(2, 20, "Numeric");
+	    f[n++] = make_field(3, 20, 1, 12);
+	    set_field_type(f[n - 1], TYPE_NUMERIC, 3, -10000.0, 100000000.0);
+
+	    break;
+	}
+
+	f[n++] = make_label(5, 0, "Comments");
+	f[n++] = make_field(6, 0, 4, 46);
+	set_field_buffer(f[n - 1], 0, "HELLO\nWORLD!");
+	set_field_buffer(f[n - 1], 1, "Hello\nWorld!");
+    }
+
+    f[n++] = (FIELD *) 0;
+
+    if ((form = new_form(f)) != 0) {
+
+	display_form(form);
+
+	w = form_win(form);
+	also = newwin(getmaxy(stdscr) - getmaxy(w), COLS, getmaxy(w), 0);
+	show_current_field(also, form);
+
+	while (!finished) {
+	    switch (edit_field(form, &c)) {
+	    case E_OK:
+		break;
+	    case E_UNKNOWN_COMMAND:
+		finished = my_form_driver(form, c);
+		break;
+	    default:
+		beep();
+		break;
+	    }
+	    show_current_field(also, form);
+	}
+
+	erase_form(form);
+
+	free_form(form);
+    }
+    for (c = 0; f[c] != 0; c++)
+	free_field(f[c]);
+    noraw();
+    nl();
+
+#ifdef NCURSES_MOUSE_VERSION
+    mousemask(0, (mmask_t *) 0);
+#endif
+}
+
+static void
+usage(void)
+{
+    static const char *tbl[] =
+    {
+	"Usage: demo_forms [options]"
+	,""
+	," -d        make fields dynamic"
+	," -j value  justify (1=left, 2=center, 3=right)"
+	," -m value  set maximum size of dynamic fields"
+	," -o value  specify number of offscreen rows in new_field()"
+	," -t value  specify text to fill fields initially"
+    };
+    unsigned int j;
+    for (j = 0; j < SIZEOF(tbl); ++j)
+	fprintf(stderr, "%s\n", tbl[j]);
+    exit(EXIT_FAILURE);
+}
+
+int
+main(int argc, char *argv[])
+{
+    int ch;
+
+    setlocale(LC_ALL, "");
+
+    while ((ch = getopt(argc, argv, "dj:m:o:t:")) != -1) {
+	switch (ch) {
+	case 'd':
+	    d_option = TRUE;
+	    break;
+	case 'j':
+	    j_value = atoi(optarg);
+	    if (j_value < NO_JUSTIFICATION
+		|| j_value > JUSTIFY_RIGHT)
+		usage();
+	    break;
+	case 'm':
+	    m_value = atoi(optarg);
+	    break;
+	case 'o':
+	    o_value = atoi(optarg);
+	    break;
+	case 't':
+	    t_value = optarg;
+	    break;
+	default:
+	    usage();
+
+	}
+    }
+
+    initscr();
+    cbreak();
+    noecho();
+    raw();
+    nonl();			/* lets us read ^M's */
+    intrflush(stdscr, FALSE);
+    keypad(stdscr, TRUE);
+
+    if (has_colors()) {
+	start_color();
+	init_pair(1, COLOR_WHITE, COLOR_BLUE);
+	init_pair(2, COLOR_GREEN, COLOR_BLACK);
+	init_pair(3, COLOR_CYAN, COLOR_BLACK);
+	bkgd(COLOR_PAIR(1));
+	refresh();
+    }
+
+    demo_forms();
+
+    endwin();
+    ExitProgram(EXIT_SUCCESS);
+}
+#else
+int
+main(void)
+{
+    printf("This program requires the curses form library\n");
+    ExitProgram(EXIT_FAILURE);
+}
+#endif