contrib/bsddialog: Import version 0.4vendor/bsddialog/0.4

Improvements and changes to integrate bsddialog(1) with scripts in BASE.
Overview:

 * New options. --and-widget, --keep-tite, --calendar.
 * Change output format. Menus and --print-maxsize.
 * Redefine sizing. Fixed rows, cols and menurows became at the most.
 * Add DIAGNOSTICS. Error messages for bad arguments and options.
 * Add keys. Space for --menu, fast keys for --msgbox and --yesno.
 * Text. Change default text modification, add --cr-wrap.

See /usr/src/contrib/bsddialog/CHANGELOG '2022-09-24 Version 0.4'
for more detailed information.

28 files changed, 1735 insertions, 847 deletions

diff --git a/.gitignore b/.gitignore
index 10a6663fbb47..8b8ec9d4ae0b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,29 +1,24 @@
 bsddialog
+.depend*
 *.o
-*~
+*.so*
 *.a
-examples_library/buildlist
+*.gz
+*.core
+*~
+BSDDIALOG.geany
+BSDDIALOG.tags
+examples_library/calendar
 examples_library/checklist
 examples_library/datebox
 examples_library/form
-examples_library/formw
-examples_library/margin
+examples_library/infobox
 examples_library/menu
 examples_library/mixedlist
-examples_library/radiolist
-examples_library/theme
-examples_library/treeview
-examples_library/infobox
 examples_library/msgbox
 examples_library/pause
+examples_library/radiolist
 examples_library/rangebox
-examples_library/sade
+examples_library/theme
 examples_library/timebox
 examples_library/yesno
-examples_library/u_msgbox
-*.gz
-lib/libbsddialog.so*
-BSDDIALOG.geany
-BSDDIALOG.tags
-*.core
-freebsd-lab/
diff --git a/CHANGELOG b/CHANGELOG
index d6de6928c111..883fe1016d01 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,17 +1,68 @@
+2022-09-24 Version 0.4
+
+	Utility:
+	* add: --normal-screen to set normal mode.
+	* add: --alternate-screen to set alternate mode.
+	* add: --keep-tite as --alternate-screen alias.
+	* add: --and-dialog to build other dialogs.
+	* add: --and-widget as --and-dialog alias.
+	* add: --no-names (--no-tags becames its alias).
+	* add: --no-descriptions (--no-items becames its alias).
+	* add: --help-print-name (--help-tags becames its alias).
+	* add: --item-bottom-desc (--item-help becames its alias).
+	* add: --cr-wrap (was partially implemented) to keep '\n' with "\n".
+	* add: --text-unchanged to avoid default modification.
+	* add: --tab-escape enables "\t" in text.
+	* add: --clear-screen to clear the screen.
+	* add: --clear-dialog to clear the dialog (was --clear).
+	* add: --calendar dialog to select a date.
+	* add: DIAGNOSTICS messages for bad arguments number.
+	* add: DIAGNOSTICS messages for missing and unexpected options.
+	* change: --clear becames alias for --clear-screen.
+	* change: --print-maxsize format output.
+	* change: --menu, --radiolist, --checklist and --treeview output.
+	    - no printed items with Cancel or ESC.
+	    - --separator prints <sepstr> before each item except HELP.
+	    - --separator and --separate-output print <sepstr> after each item.
+	    - quoted item name/desc only when needed.
+	    - --menu avoids to print selected item after focused HELP item.
+	* change: text default modification.
+	    - without a "\n": '\t' -> space, '\n' -> '\n', trim spaces.
+	    - with a "\n": '\t' -> space, '\n' -> space, "\n" -> '\n', no trim.
+	    - delete '\n' after "\n" (also with --cr-wrap).
+	* change: --datebox input and output format yy/mm/dd -> dd/mm/yy.
+	* delete: --no-collapse (partially implemented).
+	* delete: --no-nl-expand (partially implemented).
+	* delete: --trim (partially implemented).
+
+	Library:
+	* add: bsddialog_msgbox() HOME, END, PPAGE and NPAGE keys.
+	* add: bsddialog_yesno() HOME, END, PPAGE and NPAGE keys.
+	* add: bsddialog_menu() SPACE key (equivalent to ENTER).
+	* add: bsddialog_calendar() to select a date.
+	* change: rename enum bsddialog_grouptype -> enum bsddialog_menutype.
+	* change: fixed-menurows becames at most menurows (depending on text).
+	* change: fixed-rows becames at most rows, min(rows, screenH - shadow).
+	* change: fixed-cols becames at most cols, min(cols, screenW - shadow).
+	* delete: undocumented internal bsddialog_menuitem.depth factor (was 2).
+
+
 2022-08-29 Version 0.3
 
 	Utility:
 	* add: --textbox accepts options for the first button.
-	* add: --columns-per-row option for text autosizing.
-	* add: --load-theme option to read and set a custom theme at runtime.
-	* add: --save-theme option to save current theme.
-	* add: --bikeshed option for random settings.
+	* add: --columns-per-row for text autosizing.
+	* add: --load-theme to read and set a custom theme at runtime.
+	* add: --save-theme to save current theme.
+	* add: --bikeshed for random settings.
 	* add: --switch-buttons enables focus switching: buttons / input
 	       components. Available for: --form, --inputbox, --mixedform,
 	       --passwordform, --passwordbox, --timebox and --datebox.
 	* change: rename --esc-cancelvalue to --esc-return-cancel.
 	* change: form field value is printed like multibyte charachter string,
 	          previously widechar string.
+	* change: --timebox output with zero padding.
+	* change: --datebox output mm and dd with zero padding.
 	* fix: --hline with empty string.
 	* fix: avoid to overlay the backtitle by setting a top margin.
 	* fix: avoid to overlay down shadow with menus and forms bottomdesc
@@ -25,8 +76,8 @@
 	* add: conf.text.cols_per_row to set a ratio for text autosizing.
 	* add: timebox and datebox arrows and focus background for boxes.
 	* add: timebox and datebox UP key to switch focus.
-	* add: bsddialog_init_notheme() in bsddialo_theme.h.
-	* add: bsddialog_hascolors() in bsddialo_theme.h.
+	* add: bsddialog_init_notheme() in bsddialog.h.
+	* add: bsddialog_hascolors() in bsddialog_theme.h.
 	* add: theme.form.bottomdesccolor and theme.menu.bottomdesccolor.
 	* add: conf.button.always_active to disable buttons/input-boxes switch.
 	* add: dynamic buttons margin.
@@ -60,8 +111,8 @@
 	    - add: formheight autosizing.
 	    - add: dynamic item position.
 	* fix: bsddialog_gauge() with fd < 0.
-	* fix: internal segmentation fault with disabled shadow.
 	* fix: bsddialog_gauge() refresh new text.
+	* fix: internal segmentation fault with disabled shadow.
 	* fix: center position without shadow.
 	* fix: bsddialog_infobox() with zero text length.
 	* fix: text wrapping with more than 1024 words.
@@ -92,7 +143,7 @@
 	* change: theme.button.[left|right]ch -> theme.button.[left|right]delim.
 	* change: theme.button.space -> theme.button.hmargin.
 	* change: theme.menu.arrowcolor -> theme.dialog.arrowcolor.
-	* change: default menu item depth 4 -> 2.
+	* change: internal bsddialog_menuitem.depth factor 4 -> 2.
 	* fix: disable HOME, PPAGE, END and NPAGE keys in bsddialog_form().
 	* fix: visible cursor for timebox.c and form.c in VM VirtualBox.
 	* fix: mixedlist, center position of separator with big pad.
@@ -106,7 +157,7 @@
 
 2022-01-27 Version 0.1
 
-	* Common-Options: --ascii-lines, --backtitle <backtitle>, --begin-x <x>,
+	* Options: --ascii-lines, --backtitle <backtitle>, --begin-x <x>,
 	  --begin-y <y>, --cancel-label <label>, --clear, --colors, --cr-wrap,
 	  --date-format <format>, --defaultno, --default-button <label>,
 	  --default-no, --default-item <name>, --disable-esc,
@@ -131,4 +182,3 @@
 	  --passwordbox, --passwordform, --pause, --radiolist, --rangebox,
 	  --textbox, --timebox, --treeview, --yesno.
 	* Manuals: bsddialog.1, bsddialog.3.
-
diff --git a/GNUMakefile b/GNUMakefile
index d57c6248d02d..7da4d64deecf 100644
--- a/GNUMakefile
+++ b/GNUMakefile
@@ -8,8 +8,8 @@ SOURCES= bsddialog.c util_theme.c
 OBJECTS= $(SOURCES:.c=.o)
 LIBPATH= ./lib
 LIBBSDDIALOG= $(LIBPATH)/libbsddialog.so
-CFLAGS= -Wall -Wextra -Wno-unused-parameter -I$(LIBPATH)
-LDFLAGS= -Wl,-rpath=$(LIBPATH) -L$(LIBPATH) -lbsddialog
+CFLAGS= -Wall -Wextra -I$(LIBPATH)
+LDFLAGS= -ltinfo -Wl,-rpath=$(LIBPATH) -L$(LIBPATH) -lbsddialog
 RM = rm -f
 
 all : $(OUTPUT)
diff --git a/Makefile b/Makefile
index 344233581d30..28162c5e90b3 100644
--- a/Makefile
+++ b/Makefile
@@ -9,13 +9,13 @@ OBJECTS= ${SOURCES:.c=.o}
 LIBPATH= ${.CURDIR}/lib
 LIBBSDDIALOG= ${LIBPATH}/libbsddialog.so
 
-CFLAGS+= -I${LIBPATH} -std=gnu99 -Wall -Wextra -Werror -Wno-unused-parameter
+CFLAGS+= -I${LIBPATH} -std=gnu99 -Wall -Wextra -Werror
 # `make -DDEBUG`
 .if defined(DEBUG)
 CFLAGS= -g -Wall -I${LIBPATH}
 LIBDEBUG= -DDEBUG
 .endif
-LDFLAGS+= -Wl,-rpath=${LIBPATH} -L${LIBPATH} -lbsddialog
+LDFLAGS+= -ltinfow -Wl,-rpath=${LIBPATH} -L${LIBPATH} -lbsddialog
 
 BINDIR= /usr/local/bin
 MAN= ${OUTPUT}.1
diff --git a/README.md b/README.md
index 016995b232ae..59af7072e7f5 100644
--- a/README.md
+++ b/README.md
@@ -1,22 +1,8 @@
-# BSDDialog 0.3
+# BSDDialog 0.4
 
 This project provides **bsddialog** and **libbsddialog**, an utility
 and a library to build scripts and tools with TUI dialogs and widgets.
-
-
-## Intro
-
-Briefly:
-<https://www.freebsd.org/status/report-2021-04-2021-06/bsddialog/>
-
-Utility:
-<https://alfonsosiciliano.gitlab.io/posts/2021-12-07-bsddialog.html>
-
-Library:
-<https://alfonsosiciliano.gitlab.io/posts/2022-01-16-libbsddialog.html>
-
-Screenshots:
-<https://www.flickr.com/photos/alfonsosiciliano/albums/72157720215006074>
+[Screenshots](https://www.flickr.com/photos/alfonsosiciliano/albums/72157720215006074).
 
 
 ## Getting Started
@@ -48,9 +34,9 @@ Output:
 
 **Dialogs:**
 
---checklist, --datebox, --form, --gauge, --inputbox, --menu, --mixedform,
---mixedgauge, --msgbox, --passwordbox, --passwordform, --pause, --radiolist,
---rangebox, --textbox, --timebox, --treeview, --yesno.
+--calendar, --checklist, --datebox, --form, --gauge, --infobox, --inputbox,
+--menu, --mixedform, --mixedgauge, --msgbox, --passwordbox, --passwordform,
+--pause, --radiolist, --rangebox, --textbox, --timebox, --treeview, --yesno.
 
 **Manual**
 
@@ -72,6 +58,7 @@ Output:
 and [Examples](https://gitlab.com/alfix/bsddialog/-/tree/main/examples_utility)
 in the _Public Domain_ to build new projects:
 ```
+% sh ./examples_utility/calendar.sh
 % sh ./examples_utility/checklist.sh
 % sh ./examples_utility/form.sh
 % sh ./examples_utility/gauge.sh
@@ -109,6 +96,7 @@ in the _Public Domain_ to build new projects:
 ```
 % cd examples_library
 % sh compile
+% ./calendar
 % ./checklist
 % ./datebox
 % ./form
diff --git a/bsddialog.1 b/bsddialog.1
index 0bf8dd9dc3af..759fe6dc3fff 100644
--- a/bsddialog.1
+++ b/bsddialog.1
@@ -1,4 +1,5 @@
 .\"
+.\"
 .\" Copyright (c) 2021-2022 Alfonso Sabato Siciliano
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -22,7 +23,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd August 29, 2022
+.Dd September 23, 2022
 .Dt BSDDIALOG 1
 .Os
 .Sh NAME
@@ -34,12 +35,19 @@
 .Nm
 .Fl Fl version
 .Nm
-.Op Fl Fl common-option
+.Op Fl Fl option
 .Fl Fl dialog
 .Ar text
 .Ar rows
 .Ar cols
-.Op Ar dialog-parameter
+.Op Ar dialog-argument
+.Nm
+.Fl Fl dialog1
+.Ar ...
+.Oo Fl Fl and-dialog
+.Fl Fl dialog2
+.Ar ...
+.Oc ...
 .Sh DESCRIPTION
 The
 .Nm bsddialog
@@ -51,21 +59,24 @@ The options
 and
 .Fl Fl version
 print the list of options and the version, respectively, then exit.
+.Fl Fl and-dialog
+builds another dialog unless the previous one returns Error, ESC or Cancel.
 .Pp
-The following options are available for each dialog.
 .Ar text
-is a message printed inside the dialog, except for
-.Fl Fl textbox
-described later.
+is a message printed inside the dialog.
 .Ar rows
 and
 .Ar cols
 are the height and width, 0 for autosize and -1 for fullscreen.
+.Pp
 The possible input got from the user interface is printed to standard error.
-.Ss Common options
+.Ss Options
 The following options can change the default behavior of the utility and are
 common to some dialog.
 .Bl -tag -width Ds
+.It Fl Fl alternate-screen
+If available set alternate screen mode, see
+.Xr terminfo 5 .
 .It Fl Fl ascii-lines
 Ascii characters to draw lines.
 .It Fl Fl backtitle Ar backtitle
@@ -85,8 +96,10 @@ Zero padding with time or date output.
 Label for the
 .Dq Cancel
 button.
-.It Fl Fl clear
+.It Fl Fl clear-dialog
 Hide the dialog at exit.
+.It Fl Fl clear-screen
+Clear the screen, after the dialog exit if a dialog is built.
 .It Fl Fl colors
 Enable highlights for text, the following sequences are considered escapes:
 .Bl -column -compact
@@ -125,13 +138,19 @@ restore normal text.
 Try to set the number of columns for a row of text with autosizing; default
 .Dv 10 .
 .It Fl Fl cr-wrap
-Replace new line with a space in
-.Ar text .
+Keep new line in
+.Ar text
+also if it constains a
+.Dq \en ,
+see
+.Fl Fl text-unchanged .
 .It Fl Fl date-format Ar format
 String accepted by
 .Xr strftime 3
 to customize the output of
-.Fl Fl datebox .
+.Fl Fl datebox
+and
+.Fl Fl calendar
 .It Fl Fl default-button Ar label
 Focus on the button with
 .Ar label
@@ -146,18 +165,12 @@ Focus on
 or
 .Dq \&No
 button on startup.
-.It Fl Fl defaultno
-Equivalent to
-.Fl Fl default-no .
 .It Fl Fl disable-esc
 Disable ESC key to quit.
 .It Fl Fl esc-return-cancel
-Exits with the
+ESC key returns
 .Dq Cancel
-button value if the ESC key is pressed.
-.It Fl Fl exit-label Ar label
-Equivalent to
-.Fl Fl ok-label .
+button value.
 .It Fl Fl extra-button
 Add a button with
 .Dq Extra
@@ -184,14 +197,14 @@ Set
 for
 .Dq Help
 button.
+.It Fl Fl help-print-name
+Print the name of the focused item if the Help button is pressed also
+with
+.Fl Fl item-bottom-desc .
 .It Fl Fl help-status
 Print also the selected items if the
 .Dq Help
 button is pressed.
-.It Fl Fl help-tags
-Print the name of the focused item if the Help button is pressed also
-with
-.Fl Fl item-help .
 .It Fl Fl hfile Ar filename
 Open
 .Ar filename
@@ -208,11 +221,11 @@ Do not exit with unknown options.
 Print
 .Sq *
 to hide passwords while typing; whitespace otherwise.
+.It Fl Fl item-bottom-desc
+Set a help string for each item of a Checklist, Form, Menu, Mixedform,
+Passwordform, Radiolist and Treeview to display at the bottom screen side.
 .It Fl Fl item-depth
 Specify a margin for items, available for Checklist, Menu and Radiolist.
-.It Fl Fl item-help
-Set a help string for each element of a Checklist, Form, Menu, Mixedform,
-Passwordform, Radiolist and Treeview to display at the bottom screen side.
 .It Fl Fl item-prefix
 Set a string to prefix each item of a Checklist, Menu, Radiolist or Treeview.
 .It Fl Fl load-theme Ar file
@@ -228,59 +241,46 @@ default 2048.
 Do not show
 .Dq Cancel
 button.
-.It Fl Fl no-collapse
-Do not replace a TAB character with a space in
-.Ar text .
-.It Fl Fl no-items
+.It Fl Fl no-descriptions
 Do not display items desciption, for Checklist, Menu, Radiolist or Treeview.
-.It Fl Fl no-label Ar label
-Equivalent to
-.Fl Fl cancel-label .
 .It Fl Fl no-lines
 Do not draw borders and lines.
-.It Fl Fl no-nl-expand
-do not consider the sequence
-.Dq \en
-like new line.
+.It Fl Fl no-names
+Do not display items name, for Checklist, Menu and Radiolist.
 .It Fl Fl no-ok
 Do not draw
 .Dq OK
 button.
 .It Fl Fl no-shadow
 No not draw the shadow of the dialog.
-.It Fl Fl no-tags
-Do not display items name, for Checklist, Menu and Radiolist.
-.It Fl Fl nocancel
-Equivalent to
-.Fl Fl no-cancel .
-.It Fl Fl nook
-Equivalent to
-.Fl Fl no-ok .
 .It Fl Fl ok-label Ar label
 Set
 .Ar label
 for
 .Dq OK
 button.
+.It Fl Fl normal-screen
+If available set normal screen mode, see
+.Xr terminfo 5 .
 .It Fl Fl output-fd Ar fd
 Print input from user interface to the specified file descriptor.
 .It Fl Fl output-separator Ar sep
 Set a sepator for the items in output, default whitespace.
 .It Fl Fl print-maxsize
 Screen size.
+This option can be used without a dialog.
 .It Fl Fl print-size
 Print Dialog height and widget at exit.
 .It Fl Fl print-version
 Print version.
+This option can be used without a dialog.
 .It Fl Fl quoted
 Quote items in output, default only when necessary.
 .It Fl Fl save-theme Ar file
 Save the current theme.
+This option can be used without a dialog.
 .It Fl Fl separate-output
 Separate selected items with a new line and avoid to quote.
-.It Fl Fl separator Ar sep
-Equivalent to
-.Fl Fl output-separator .
 .It Fl Fl shadow
 Show a pseudo shadow for the dialog, enabled by default.
 .It Fl Fl single-quoted
@@ -302,12 +302,29 @@ Suitable for:
 .Fl Fl mixedform ,
 .Fl Fl passwordbox ,
 .Fl Fl passwordform ,
-.Fl Fl timebox
+.Fl Fl timebox ,
+.Fl Fl calendar
 and
 .Fl Fl datebox .
+.It Fl Fl tab-escape
+Replace
+.Dq \et
+with a tab in
+.Ar text .
 .It Fl Fl tab-len Ar spaces
 Number of spaces to print a TAB in
 .Ar text .
+.It Fl Fl text-unchanged
+By default the
+.Ar text
+is changed before to be printed.
+If it contains at least a
+.Dq \en
+each new line and TAB is converted to a space, subsequent spaces are merged.
+Otherwise new line characters are preserved and a TAB becomes a space.
+This option disable the
+.Ar text
+modification.
 .It Fl Fl theme Ar theme
 Set a graphical style: blackwhite, bsddialog, flat or dialog.
 .It Fl Fl time-format Ar format
@@ -317,16 +334,12 @@ to customize the output of
 .Fl Fl timebox .
 .It Fl Fl title Ar title
 Dialog title.
-.It Fl Fl trim
-remove consecutive spaces in
-.Ar text .
-.It Fl Fl yes-label Ar label
-Equivalent to
-.Fl Fl ok-label .
 .El
 .Ss Dialogs
 The following dialogs are available:
 .Bl -tag -width Ds
+.It Fl Fl calendar Ar text Ar rows Ar cols Op Ar day Ar month Ar year
+Dialog to select a date.
 .It Fl Fl checklist Ar text Ar rows Ar cols Ar menurows Oo Ar name Ar desc \
 Ar status Oc ...
 Checklist to select some item from a list via the SPACE key.
@@ -342,7 +355,7 @@ or
 The names of the selected items are printed to standard error.
 .Ar menurows
 is the graphical height of the list, 0 for autosize.
-.It Fl Fl datebox Ar text Ar rows Ar cols Op Ar year Ar month Ar day
+.It Fl Fl datebox Ar text Ar rows Ar cols Op Ar day Ar month Ar year
 Dialog to select a date.
 .It Fl Fl form Ar text Ar rows Ar cols Ar formrows Oo Ar label Ar ylabel \
 Ar xlabel Ar init Ar yfield Ar xfield Ar fieldlen Ar maxletters Oc ...
@@ -393,7 +406,7 @@ Dialog to get a string in input,
 .Ar init
 is the default value.
 .It Fl Fl menu Ar text Ar rows Ar cols Ar menurows Oo Ar name desc Oc ...
-Builds a menu to select an item from a list.
+Builds a menu to select an item from a list, Space key is equivalent to Enter.
 An item has a
 .Ar name
 and a
@@ -461,6 +474,7 @@ a blank line,
 Dialog to diplay a message without the
 .Dq Cancel
 button.
+UP, DOWN, HOME, END, PAGEUP and PAGEDOWN keys are availble to navigate the text.
 .It Fl Fl passwordbox Ar text Ar rows Ar cols Op Ar init
 Dialog to get a password,
 .Ar init
@@ -522,6 +536,7 @@ buttons are renamed
 .Dq Yes
 and
 .Dq \&No .
+UP, DOWN, HOME, END, PAGEUP and PAGEDOWN keys are availble to navigate the text.
 .El
 .Sh EXIT STATUS
 The
@@ -574,6 +589,10 @@ Checklist:
 Form:
 .Dl bsddialog --form Form 0 0 0 L1: 0 0 X 0 4 20 25 L2: 1 0 Y 1 4 20 25
 .Pp
+Multi-dialog:
+.Dl bsddialog --normal-screen --begin-y 1 --yesno Continue? 0 0  \e \
+--and-dialog --begin-y 10 --infobox Yes 0 0
+.Pp
 Bikeshed:
 .Dl bsddialog --bikeshed --inputbox Example 0 0
 .Pp
@@ -614,6 +633,27 @@ do
 	i=`expr $i + 1`
 done | bsddialog --title Gauge --gauge "Starting..." 10 70
 .Ed
+.Sh COMPATIBILITY
+Outdated options are retained for compatibility, properly equivalent options are
+used:
+.Bd -literal -offset indent -compact
+Obsolete                     Equivalent
+--and-widget                 --and-dialog
+--calendar <text> 2 <cols>   --calendar <text> 0 <cols>
+--clear                      --clear-screen
+--defaultno                  --default-no
+--exit-label                 --ok-label
+--help-tags                  --help-print-name
+--item-help                  --item-bottom-desc
+--keep-tite                  --alternate-screen
+--no-items                   --no-descriptions
+--no-label                   --cancel-label
+--no-tags                    --no-names
+--nocancel                   --no-cancel
+--nook                       --no-ok
+--separator                  --output-separator
+--yes-label                  --ok-label
+.Ed
 .Sh SEE ALSO
 .Xr bsddialog 3
 .Sh HISTORY
@@ -633,7 +673,8 @@ provides a subset of the functionality described in the
 manual.
 The following features were reimplemented:
 .Pp
-Common options:
+Options:
+.Fl Fl and-widget ,
 .Fl Fl ascii-lines ,
 .Fl Fl backtitle ,
 .Fl Fl cancel-label ,
@@ -658,14 +699,13 @@ Common options:
 .Fl Fl ignore ,
 .Fl Fl insecure ,
 .Fl Fl item-help ,
+.Fl Fl keep-tite ,
 .Fl Fl max-input ,
 .Fl Fl no-cancel ,
 .Fl Fl nocancel ,
-.Fl Fl no-collapse ,
 .Fl Fl no-items ,
 .Fl Fl no-label ,
 .Fl Fl no-lines ,
-.Fl Fl no-nl-expand ,
 .Fl Fl no-ok ,
 .Fl Fl nook ,
 .Fl Fl no-shadow ,
@@ -687,11 +727,11 @@ Common options:
 .Fl Fl tab-len ,
 .Fl Fl time-format ,
 .Fl Fl title ,
-.Fl Fl trim ,
 .Fl Fl version ,
 .Fl Fl yes-label .
 .Pp
 Dialogs:
+.Fl Fl calendar ,
 .Fl Fl checklist ,
 .Fl Fl form ,
 .Fl Fl gauge ,
@@ -715,8 +755,10 @@ Some feature differs in input, output, or behavior.
 Compatibility is not a priority for future development.
 .Sh THANKS TO
 .An Baptiste Daroussin
-.Aq Mt bapt@FreeBSD.org
-and
+.Aq Mt bapt@FreeBSD.org ,
 .An \&Ed Maste
 .Aq Mt emaste@FreeBSD.org
+and
+.An Juraj Lutter
+.Aq Mt otis@FreeBSD.org
 for suggestions, help, and testing.
diff --git a/bsddialog.c b/bsddialog.c
index bfd6d8dbc5b7..b9b2810dc62f 100644
--- a/bsddialog.c
+++ b/bsddialog.c
@@ -33,6 +33,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <term.h>
 #include <time.h>
 #include <unistd.h>
 
@@ -41,17 +42,18 @@
 
 #include "util_theme.h"
 
-#define BSDDIALOG_VERSION "0.3"
-
 enum OPTS {
-	/* Common options */
-	ASCII_LINES = '?' + 1,
+	/* Options */
+	ALTERNATE_SCREEN = '?' + 1,
+	AND_DIALOG,
+	ASCII_LINES,
 	BACKTITLE,
 	BEGIN_X,
 	BEGIN_Y,
 	BIKESHED,
 	CANCEL_LABEL,
-	CLEAR,
+	CLEAR_DIALOG,
+	CLEAR_SCREEN,
 	COLORS,
 	COLUMNS_PER_ROW,
 	CR_WRAP,
@@ -66,29 +68,27 @@ enum OPTS {
 	EXTRA_LABEL,
 	GENERIC_BUTTON1,
 	GENERIC_BUTTON2,
-	HELP,
 	HELP_BUTTON,
 	HELP_LABEL,
+	HELP_PRINT_NAME,
 	HELP_STATUS,
-	HELP_TAGS,
 	HFILE,
 	HLINE,
 	HMSG,
 	IGNORE,
 	INSECURE,
+	ITEM_BOTTOM_DESC,
 	ITEM_DEPTH,
-	ITEM_HELP,
 	ITEM_PREFIX,
 	LOAD_THEME,
 	MAX_INPUT,
 	NO_CANCEL,
-	NO_COLLAPSE,
-	NO_ITEMS,
+	NO_DESCRIPTIONS,
 	NO_LINES,
-	NO_NL_EXPAND,
+	NO_NAMES,
 	NO_OK,
 	NO_SHADOW,
-	NO_TAGS,
+	NORMAL_SCREEN,
 	OK_LABEL,
 	OUTPUT_FD,
 	OUTPUT_SEPARATOR,
@@ -104,13 +104,14 @@ enum OPTS {
 	STDERR,
 	STDOUT,
 	SWITCH_BUTTONS,
+	TAB_ESCAPE,
 	TAB_LEN,
+	TEXT_UNCHANGED,
 	THEME,
 	TIME_FORMAT,
 	TITLE,
-	TRIM,
-	VERSION,
 	/* Dialogs */
+	CALENDAR,
 	CHECKLIST,
 	DATEBOX,
 	FORM,
@@ -132,28 +133,156 @@ enum OPTS {
 	YESNO
 };
 
+/* options descriptor */
+static struct option longopts[] = {
+	/* Options */
+	{"alternate-screen",  no_argument,       NULL, ALTERNATE_SCREEN},
+	{"and-dialog",        no_argument,       NULL, AND_DIALOG},
+	{"and-widget",        no_argument,       NULL, AND_DIALOG},
+	{"ascii-lines",       no_argument,       NULL, ASCII_LINES},
+	{"backtitle",         required_argument, NULL, BACKTITLE},
+	{"begin-x",           required_argument, NULL, BEGIN_X},
+	{"begin-y",           required_argument, NULL, BEGIN_Y},
+	{"bikeshed",          no_argument,       NULL, BIKESHED},
+	{"cancel-label",      required_argument, NULL, CANCEL_LABEL},
+	{"clear",             no_argument,       NULL, CLEAR_SCREEN},
+	{"clear-dialog",      no_argument,       NULL, CLEAR_DIALOG},
+	{"clear-screen",      no_argument,       NULL, CLEAR_SCREEN},
+	{"colors",            no_argument,       NULL, COLORS},
+	{"columns-per-row",   required_argument, NULL, COLUMNS_PER_ROW},
+	{"cr-wrap",           no_argument,       NULL, CR_WRAP},
+	{"date-format",       required_argument, NULL, DATE_FORMAT},
+	{"defaultno",         no_argument,       NULL, DEFAULT_NO},
+	{"default-button",    required_argument, NULL, DEFAULT_BUTTON},
+	{"default-item",      required_argument, NULL, DEFAULT_ITEM},
+	{"default-no",        no_argument,       NULL, DEFAULT_NO},
+	{"disable-esc",       no_argument,       NULL, DISABLE_ESC},
+	{"esc-return-cancel", no_argument,       NULL, ESC_RETURNCANCEL},
+	{"exit-label",        required_argument, NULL, EXIT_LABEL},
+	{"extra-button",      no_argument,       NULL, EXTRA_BUTTON},
+	{"extra-label",       required_argument, NULL, EXTRA_LABEL},
+	{"generic-button1",   required_argument, NULL, GENERIC_BUTTON1},
+	{"generic-button2",   required_argument, NULL, GENERIC_BUTTON2},
+	{"help-button",       no_argument,       NULL, HELP_BUTTON},
+	{"help-label",        required_argument, NULL, HELP_LABEL},
+	{"help-print-name",   no_argument,       NULL, HELP_PRINT_NAME},
+	{"help-status",       no_argument,       NULL, HELP_STATUS},
+	{"help-tags",         no_argument,       NULL, HELP_PRINT_NAME},
+	{"hfile",             required_argument, NULL, HFILE},
+	{"hline",             required_argument, NULL, HLINE},
+	{"hmsg",              required_argument, NULL, HMSG},
+	{"ignore",            no_argument,       NULL, IGNORE},
+	{"insecure",          no_argument,       NULL, INSECURE},
+	{"item-bottom-desc",  no_argument,       NULL, ITEM_BOTTOM_DESC},
+	{"item-depth",        no_argument,       NULL, ITEM_DEPTH},
+	{"item-help",         no_argument,       NULL, ITEM_BOTTOM_DESC},
+	{"item-prefix",       no_argument,       NULL, ITEM_PREFIX},
+	{"keep-tite",         no_argument,       NULL, ALTERNATE_SCREEN},
+	{"load-theme",        required_argument, NULL, LOAD_THEME},
+	{"max-input",         required_argument, NULL, MAX_INPUT},
+	{"no-cancel",         no_argument,       NULL, NO_CANCEL},
+	{"nocancel",          no_argument,       NULL, NO_CANCEL},
+	{"no-descriptions",   no_argument,       NULL, NO_DESCRIPTIONS},
+	{"no-items",          no_argument,       NULL, NO_DESCRIPTIONS},
+	{"no-label",          required_argument, NULL, CANCEL_LABEL},
+	{"no-lines",          no_argument,       NULL, NO_LINES},
+	{"no-names",          no_argument,       NULL, NO_NAMES},
+	{"no-ok",             no_argument,       NULL, NO_OK},
+	{"nook ",             no_argument,       NULL, NO_OK},
+	{"no-shadow",         no_argument,       NULL, NO_SHADOW},
+	{"no-tags",           no_argument,       NULL, NO_NAMES},
+	{"normal-screen",     no_argument,       NULL, NORMAL_SCREEN},
+	{"ok-label",          required_argument, NULL, OK_LABEL},
+	{"output-fd",         required_argument, NULL, OUTPUT_FD},
+	{"output-separator",  required_argument, NULL, OUTPUT_SEPARATOR},
+	{"print-maxsize",     no_argument,       NULL, PRINT_MAXSIZE},
+	{"print-size",        no_argument,       NULL, PRINT_SIZE},
+	{"print-version",     no_argument,       NULL, PRINT_VERSION},
+	{"quoted",            no_argument,       NULL, QUOTED},
+	{"save-theme",        required_argument, NULL, SAVE_THEME},
+	{"separate-output",   no_argument,       NULL, SEPARATE_OUTPUT},
+	{"separator",         required_argument, NULL, OUTPUT_SEPARATOR},
+	{"shadow",            no_argument,       NULL, SHADOW},
+	{"single-quoted",     no_argument,       NULL, SINGLE_QUOTED},
+	{"sleep",             required_argument, NULL, SLEEP},
+	{"stderr",            no_argument,       NULL, STDERR},
+	{"stdout",            no_argument,       NULL, STDOUT},
+	{"switch-buttons",    no_argument,       NULL, SWITCH_BUTTONS},
+	{"tab-escape",        no_argument,       NULL, TAB_ESCAPE},
+	{"tab-len",           required_argument, NULL, TAB_LEN},
+	{"text-unchanged",    no_argument,       NULL, TEXT_UNCHANGED},
+	{"theme",             required_argument, NULL, THEME},
+	{"time-format",       required_argument, NULL, TIME_FORMAT},
+	{"title",             required_argument, NULL, TITLE},
+	{"yes-label",         required_argument, NULL, OK_LABEL},
+	/* Dialogs */
+	{"calendar",     no_argument, NULL, CALENDAR},
+	{"checklist",    no_argument, NULL, CHECKLIST},
+	{"datebox",      no_argument, NULL, DATEBOX},
+	{"form",         no_argument, NULL, FORM},
+	{"gauge",        no_argument, NULL, GAUGE},
+	{"infobox",      no_argument, NULL, INFOBOX},
+	{"inputbox",     no_argument, NULL, INPUTBOX},
+	{"menu",         no_argument, NULL, MENU},
+	{"mixedform",    no_argument, NULL, MIXEDFORM},
+	{"mixedgauge",   no_argument, NULL, MIXEDGAUGE},
+	{"msgbox",       no_argument, NULL, MSGBOX},
+	{"passwordbox",  no_argument, NULL, PASSWORDBOX},
+	{"passwordform", no_argument, NULL, PASSWORDFORM},
+	{"pause",        no_argument, NULL, PAUSE},
+	{"radiolist",    no_argument, NULL, RADIOLIST},
+	{"rangebox",     no_argument, NULL, RANGEBOX},
+	{"textbox",      no_argument, NULL, TEXTBOX},
+	{"timebox",      no_argument, NULL, TIMEBOX},
+	{"treeview",     no_argument, NULL, TREEVIEW},
+	{"yesno",        no_argument, NULL, YESNO},
+	/* END */
+	{ NULL, 0, NULL, 0}
+};
+
 /* Menus options */
-static bool item_prefix_opt, item_bottomdesc_opt, item_output_sepnl_opt;
-static bool item_singlequote_opt, list_items_on_opt, item_tag_help_opt;
-static bool item_always_quote_opt, item_depth_opt;
-static char *item_output_sep_opt, *item_default_opt;
+static bool item_prefix_opt;
+static bool item_bottomdesc_opt;
+static bool item_output_sepnl_opt;
+static bool item_singlequote_opt;
+static bool list_items_on_opt;
+static bool item_help_print_name_opt;
+static bool item_always_quote_opt;
+static bool item_depth_opt;
+static char *item_output_sep_opt;
+static char *item_default_opt;
 /* Date and Time options */
-static char *date_fmt_opt, *time_fmt_opt;
+static char *date_fmt_opt;
+static char *time_fmt_opt;
 /* Forms options */
 static int unsigned max_input_form_opt;
 /* General options */
+static bool esc_return_cancel_opt;
+static bool ignore_opt;
 static int output_fd_opt;
-bool bikeshed_opt;
+static int getH_opt;
+static int getW_opt;
+/* Text option */
+static bool cr_wrap_opt;
+static bool tab_escape_opt;
+static bool text_unchanged_opt;
+/* Theme and Screen options*/
+static bool bikeshed_opt;
+static enum bsddialog_default_theme theme_opt;
+static char *backtitle_opt;
+static bool clear_screen_opt;
+static char *loadthemefile;
+static char *savethemefile;
+static const char *screen_mode_opt;
 
 /* Functions */
-static void sigint_handler(int sig);
-static void
-custom_text(bool cr_wrap, bool no_collapse, bool no_nl_expand, bool trim,
-    char *text, char *buf);
-static void errorexit(char *errbuf);
+#define UNUSED_PAR(x) UNUSED_ ## x __attribute__((__unused__))
+static void custom_text(char *text, char *buf);
+static void usage(void);
 /* Dialogs */
 #define BUILDER_ARGS struct bsddialog_conf *conf, char* text, int rows,        \
-	int cols, int argc, char **argv, char *errbuf
+	int cols, int argc, char **argv
+static int calendar_builder(BUILDER_ARGS);
 static int checklist_builder(BUILDER_ARGS);
 static int datebox_builder(BUILDER_ARGS);
 static int form_builder(BUILDER_ARGS);
@@ -174,258 +303,233 @@ static int timebox_builder(BUILDER_ARGS);
 static int treeview_builder(BUILDER_ARGS);
 static int yesno_builder(BUILDER_ARGS);
 
+/* init, exit and internals */
+static bool in_bsddialog_mode;
+static bool mandatory_dialog;
+static int (*dialogbuilder)(BUILDER_ARGS);
+
+static void exit_error(const char *errstr, bool with_usage)
+{
+	if (in_bsddialog_mode)
+		bsddialog_end();
+
+	printf("Error: %s.\n\n", errstr);
+	if (with_usage) {
+		printf("See \'bsddialog --help\' or \'man 1 bsddialog\' ");
+		printf("for more information.\n");
+	}
+
+	exit (255);
+}
+
+static void sigint_handler(int UNUSED_PAR(sig))
+{
+	bsddialog_end();
+
+	exit(255);
+}
+
+static void start_bsddialog_mode(void)
+{
+	if (in_bsddialog_mode)
+		return;
+
+	if (bsddialog_init() != BSDDIALOG_OK)
+		exit_error(bsddialog_geterror(), false);
+
+	in_bsddialog_mode = true;
+	signal(SIGINT, sigint_handler);
+}
+
+static void error_args(const char *dialog, int argc, char **argv)
+{
+	int i;
+
+	if (in_bsddialog_mode)
+		bsddialog_end();
+
+	printf("Error: %s unexpected argument%s:", dialog,
+	    argc > 1 ? "s" : "");
+	for (i = 0; i < argc; i++)
+		printf(" \"%s\"", argv[i]);
+	printf(".\n\n");
+	printf("See \'bsddialog --help\' or \'man 1 bsddialog\' ");
+	printf("for more information.\n");
+
+	exit (255);
+}
+
 static void usage(void)
 {
 	printf("usage: bsddialog --help\n");
 	printf("       bsddialog --version\n");
-	printf("       bsddialog [--<common-opts>] --<dialog> <text> <rows> "
-	    "<cols> [--<dialog-opts>]\n");
+	printf("       bsddialog [--<opt>] --<dialog> <text> <rows> <cols> "
+	    "[<arg>]\n");
+	printf("       bsddialog --<dialog1> ... [--and-dialog --<dialog2> "
+	    "...] ...\n");
 	printf("\n");
 
-	printf("Common Options:\n");
-	printf("--ascii-lines, --backtitle <backtitle>, --begin-x <x>, "
-	    "--begin-y <y>, --bikeshed, --cancel-label <label>, --clear, "
-	    "--colors, --columns-per-row <columns>, --cr-wrap, "
-	    "--date-format <format>, --default-button <label>, "
-	    "--default-item <name>, --default-no, --disable-esc, "
-	    "--esc-return-cancel, --exit-label <label>, --extra-button, "
-	    "--extra-label <label>, --generic-button1 <label>, "
-	    "--generic-button2 <label>, --help, --help-button, "
-	    "--help-label <label>, --help-status, --help-tags, --hfile <file>, "
-	    "--hline <string>, --hmsg <string>, --ignore, --insecure, "
-	    "--item-depth, --item-help, --item-prefix, --load-theme <file>, "
-	    "--max-input <size>, --no-cancel, --no-collapse, --no-items, "
-	    "--no-label <label>, --no-lines, --no-nl-expand, --no-ok, "
-	    "--no-shadow, --no-tags, --ok-label <label>, --output-fd <fd>, "
-	    "--output-separator <sep>, --print-maxsize, --print-size, "
-	    "--print-version, --quoted, --save-theme <file>, "
-	    "--separate-output, --separator <sep>, --shadow, --single-quoted, "
-	    "--sleep <secs>, --stderr, --stdout, --tab-len <spaces>, "
-	    "--switch-buttons, --theme <blackwhite|bsddialog|flat|dialog>, "
-	    "--time-format <format>, --title <title>, --trim, --version, "
-	    "--yes-label <label>.\n");
+	printf("Options:\n");
+	printf(" --alternate-screen, --ascii-lines, --backtitle <backtitle>,"
+	    " --begin-x <x>,\n --begin-y <y>, --bikeshed, --calendar,"
+	    " --cancel-label <label>, --clear-dialog,\n --clear-screen,"
+	    " --colors, --columns-per-row <columns>, --cr-wrap,\n"
+	    " --date-format <format>, --default-button <label>,"
+	    " --default-item <name>,\n --default-no, --disable-esc,"
+	    " --esc-return-cancel, --exit-label <label>,\n --extra-button,"
+	    " --extra-label <label>, --generic-button1 <label>,\n"
+	    " --generic-button2 <label>, --help-button, --help-label <label>,\n"
+	    " --help-print-name, --help-status, --hfile <file>,"
+	    " --hline <string>,\n --hmsg <string>, --ignore, --insecure,"
+	    " --item-bottom-desc, --item-depth,\n --item-prefix,"
+	    " --load-theme <file>, --max-input <size>, --no-cancel,\n"
+	    " --no-descriptions, --no-label <label>, --no-lines, --no-names,"
+	    " --no-ok,\n --no-shadow, --normal-screen, --ok-label <label>,"
+	    " --output-fd <fd>,\n --output-separator <sep>, --print-maxsize,"
+	    " --print-size, --print-version,\n --quoted, --save-theme <file>,"
+	    " --separate-output, --separator <sep>, --shadow,\n"
+	    " --single-quoted, --sleep <secs>, --stderr, --stdout,"
+	    " --tab-escape,\n --tab-len <spaces>, --text-unchanged,"
+	    " --switch-buttons,\n --theme <blackwhite|bsddialog|flat|dialog>,"
+	    " --time-format <format>,\n --title <title>,"
+	    " --yes-label <label>.\n");
 	printf("\n");
 
 	printf("Dialogs:\n");
-	printf("--checklist <text> <rows> <cols> <menurows> [<name> <desc> "
+	printf(" --calendar <text> <rows> <cols> [<dd> <mm> <yy>]\n");
+	printf(" --checklist <text> <rows> <cols> <menurows> [<name> <desc> "
 	    "<on|off>] ...\n");
-	printf("--datebox <text> <rows> <cols> [<yy> <mm> <dd>]\n");
-	printf("--form <text> <rows> <cols> <formrows> [<label> <ylabel> "
+	printf(" --datebox <text> <rows> <cols> [<dd> <mm> <yy>]\n");
+	printf(" --form <text> <rows> <cols> <formrows> [<label> <ylabel> "
 	    "<xlabel> <init> <yfield> <xfield> <fieldlen> <maxletters>] "
 	    "...\n");
-	printf("--gauge <text> <rows> <cols> [<perc>]\n");
-	printf("--infobox <text> <rows> <cols>\n");
-	printf("--inputbox <text> <rows> <cols> [init]\n");
-	printf("--menu <text> <rows> <cols> <menurows> [<name> <desc>] ...\n");
-	printf("--mixedform <text> <rows> <cols> <formrows> [<label> <ylabel> "
+	printf(" --gauge <text> <rows> <cols> [<perc>]\n");
+	printf(" --infobox <text> <rows> <cols>\n");
+	printf(" --inputbox <text> <rows> <cols> [init]\n");
+	printf(" --menu <text> <rows> <cols> <menurows> [<name> <desc>] ...\n");
+	printf(" --mixedform <text> <rows> <cols> <formrows> [<label> <ylabel> "
 	    "<xlabel> <init> <yfield> <xfield> <fieldlen> <maxletters> "
 	    "<0|1|2>] ...\n");
-	printf("--mixedgauge <text> <rows> <cols> <mainperc> [<minilabel> "
+	printf(" --mixedgauge <text> <rows> <cols> <mainperc> [<minilabel> "
 	    "<miniperc>] ...\n");
-	printf("--msgbox <text> <rows> <cols>\n");
-	printf("--passwordbox <text> <rows> <cols> [init]\n");
-	printf("--passwordform <text> <rows> <cols> <formrows> [<label> "
+	printf(" --msgbox <text> <rows> <cols>\n");
+	printf(" --passwordbox <text> <rows> <cols> [init]\n");
+	printf(" --passwordform <text> <rows> <cols> <formrows> [<label> "
 	    "<ylabel> <xlabel> <init> <yfield> <xfield> <fieldlen> "
 	    "<maxletters>] ...\n");
-	printf("--pause <text> <rows> <cols> <secs>\n");
-	printf("--radiolist <text> <rows> <cols> <menurows> [<name> <desc> "
+	printf(" --pause <text> <rows> <cols> <secs>\n");
+	printf(" --radiolist <text> <rows> <cols> <menurows> [<name> <desc> "
 	    "<on|off>] ...\n");
-	printf("--rangebox <text> <rows> <cols> <min> <max> [<init>]\n");
-	printf("--textbox <file> <rows> <cols>\n");
-	printf("--timebox <text> <rows> <cols> [<hh> <mm> <ss>]\n");
-	printf("--treeview <text> <rows> <cols> <menurows> [<depth> <name> "
+	printf(" --rangebox <text> <rows> <cols> <min> <max> [<init>]\n");
+	printf(" --textbox <file> <rows> <cols>\n");
+	printf(" --timebox <text> <rows> <cols> [<hh> <mm> <ss>]\n");
+	printf(" --treeview <text> <rows> <cols> <menurows> [<depth> <name> "
 	    "<desc> <on|off>] ...\n");
-	printf("--yesno <text> <rows> <cols>\n");
+	printf(" --yesno <text> <rows> <cols>\n");
 	printf("\n");
 
 	printf("See 'man 1 bsddialog' for more information.\n");
 }
 
-int main(int argc, char *argv[argc])
+static int parseargs(int argc, char **argv, struct bsddialog_conf *conf)
 {
-	bool cr_wrap_opt, no_collapse_opt, no_nl_expand_opt, trim_opt;
-	bool esc_return_cancel_opt, ignore_opt, print_maxsize_opt;
-	bool textfromfile;
-	int input, rows, cols, retval, getH, getW;
-	int (*dialogbuilder)(BUILDER_ARGS) = NULL;
-	enum bsddialog_default_theme theme_opt;
-	char *text, *backtitle_opt, *loadthemefile, *savethemefile;
-	char errorbuilder[1024];
+	int arg, parsed, i;
 	struct winsize ws;
-	struct bsddialog_conf conf;
 
-	setlocale(LC_ALL, "");
+	bsddialog_initconf(conf);
+	conf->key.enable_esc = true;
+	conf->menu.on_without_ok = true;
+	conf->form.value_without_ok = true;
+	conf->button.always_active = true;
 
-	bsddialog_initconf(&conf);
-	conf.key.enable_esc = true;
-	conf.menu.on_without_ok = true;
-	conf.form.value_without_ok = true;
-	conf.button.always_active = true;
+	dialogbuilder = NULL;
 
 	backtitle_opt = NULL;
-	theme_opt = BSDDIALOG_THEME_FLAT;
+	theme_opt = -1;
 	output_fd_opt = STDERR_FILENO;
-	print_maxsize_opt = false;
 	ignore_opt = false;
-	cr_wrap_opt = no_collapse_opt = no_nl_expand_opt = trim_opt = false;
+	cr_wrap_opt = false;
+	tab_escape_opt = false;
+	text_unchanged_opt = false;
 	esc_return_cancel_opt = false;
-	textfromfile = false;
 	bikeshed_opt = false;
-	errorbuilder[0] = '\0';
 	savethemefile = NULL;
 	loadthemefile = NULL;
-
-	item_output_sepnl_opt = item_singlequote_opt = false;
-	item_prefix_opt = item_bottomdesc_opt = item_depth_opt = false;
-	list_items_on_opt = item_tag_help_opt = false;
+	clear_screen_opt = false;
+	screen_mode_opt = NULL;
+
+	item_output_sepnl_opt = false;
+	item_singlequote_opt = false;
+	item_prefix_opt = false;
+	item_bottomdesc_opt = false;
+	item_depth_opt = false;
+	list_items_on_opt = false;
+	item_help_print_name_opt = false;
 	item_always_quote_opt = false;
 	item_output_sep_opt = NULL;
 	item_default_opt = NULL;
 
-	date_fmt_opt = time_fmt_opt = NULL;
-
-	max_input_form_opt = 0;
-
-	/* options descriptor */
-	struct option longopts[] = {
-		/* common options */
-		{"ascii-lines",      no_argument,       NULL, ASCII_LINES},
-		{"backtitle",        required_argument, NULL, BACKTITLE},
-		{"begin-x",          required_argument, NULL, BEGIN_X},
-		{"begin-y",          required_argument, NULL, BEGIN_Y},
-		{"bikeshed",         no_argument,       NULL, BIKESHED},
-		{"cancel-label",     required_argument, NULL, CANCEL_LABEL},
-		{"clear",            no_argument,       NULL, CLEAR},
-		{"colors",           no_argument,       NULL, COLORS},
-		{"cr-wrap",          no_argument,       NULL, CR_WRAP},
-		{"date-format",      required_argument, NULL, DATE_FORMAT},
-		{"defaultno",        no_argument,       NULL, DEFAULT_NO},
-		{"default-button",   required_argument, NULL, DEFAULT_BUTTON},
-		{"default-item",     required_argument, NULL, DEFAULT_ITEM},
-		{"default-no",       no_argument,       NULL, DEFAULT_NO},
-		{"disable-esc",      no_argument,       NULL, DISABLE_ESC},
-		{"esc-return-cancel",no_argument,       NULL, ESC_RETURNCANCEL},
-		{"exit-label",       required_argument, NULL, EXIT_LABEL},
-		{"extra-button",     no_argument,       NULL, EXTRA_BUTTON},
-		{"extra-label",      required_argument, NULL, EXTRA_LABEL},
-		{"generic-button1",  required_argument, NULL, GENERIC_BUTTON1},
-		{"generic-button2",  required_argument, NULL, GENERIC_BUTTON2},
-		{"help",             no_argument,       NULL, HELP},
-		{"help-button",      no_argument,       NULL, HELP_BUTTON},
-		{"help-label",       required_argument, NULL, HELP_LABEL},
-		{"help-status",      no_argument,       NULL, HELP_STATUS},
-		{"help-tags",        no_argument,       NULL, HELP_TAGS},
-		{"hfile",            required_argument, NULL, HFILE},
-		{"hline",            required_argument, NULL, HLINE},
-		{"hmsg",             required_argument, NULL, HMSG},
-		{"ignore",           no_argument,       NULL, IGNORE},
-		{"insecure",         no_argument,       NULL, INSECURE},
-		{"item-depth",       no_argument,       NULL, ITEM_DEPTH},
-		{"item-help",        no_argument,       NULL, ITEM_HELP},
-		{"item-prefix",      no_argument,       NULL, ITEM_PREFIX},
-		{"load-theme",       required_argument, NULL, LOAD_THEME},
-		{"max-input",        required_argument, NULL, MAX_INPUT},
-		{"no-cancel",        no_argument,       NULL, NO_CANCEL},
-		{"nocancel",         no_argument,       NULL, NO_CANCEL},
-		{"no-collapse",      no_argument,       NULL, NO_COLLAPSE},
-		{"no-items",         no_argument,       NULL, NO_ITEMS},
-		{"no-label",         required_argument, NULL, CANCEL_LABEL},
-		{"no-lines",         no_argument,       NULL, NO_LINES},
-		{"no-nl-expand",     no_argument,       NULL, NO_NL_EXPAND},
-		{"no-ok",            no_argument,       NULL, NO_OK},
-		{"nook ",            no_argument,       NULL, NO_OK},
-		{"no-shadow",        no_argument,       NULL, NO_SHADOW},
-		{"no-tags",          no_argument,       NULL, NO_TAGS},
-		{"ok-label",         required_argument, NULL, OK_LABEL},
-		{"output-fd",        required_argument, NULL, OUTPUT_FD},
-		{"output-separator", required_argument, NULL, OUTPUT_SEPARATOR},
-		{"print-maxsize",    no_argument,       NULL, PRINT_MAXSIZE},
-		{"print-size",       no_argument,       NULL, PRINT_SIZE},
-		{"print-version",    no_argument,       NULL, PRINT_VERSION},
-		{"quoted",           no_argument,       NULL, QUOTED},
-		{"columns-per-row",  required_argument, NULL, COLUMNS_PER_ROW},
-		{"save-theme",       required_argument, NULL, SAVE_THEME},
-		{"separate-output",  no_argument,       NULL, SEPARATE_OUTPUT},
-		{"separator",        required_argument, NULL, OUTPUT_SEPARATOR},
-		{"shadow",           no_argument,       NULL, SHADOW},
-		{"single-quoted",    no_argument,       NULL, SINGLE_QUOTED},
-		{"sleep",            required_argument, NULL, SLEEP},
-		{"stderr",           no_argument,       NULL, STDERR},
-		{"stdout",           no_argument,       NULL, STDOUT},
-		{"switch-buttons",   no_argument,       NULL, SWITCH_BUTTONS},
-		{"tab-len",          required_argument, NULL, TAB_LEN},
-		{"theme",            required_argument, NULL, THEME},
-		{"time-format",      required_argument, NULL, TIME_FORMAT},
-		{"title",            required_argument, NULL, TITLE},
-		{"trim",             no_argument,       NULL, TRIM},
-		{"version",          no_argument,       NULL, VERSION},
-		{"yes-label",        required_argument, NULL, OK_LABEL},
-		/* Dialogs */
-		{"checklist",    no_argument, NULL, CHECKLIST},
-		{"datebox",      no_argument, NULL, DATEBOX},
-		{"form",         no_argument, NULL, FORM},
-		{"gauge",        no_argument, NULL, GAUGE},
-		{"infobox",      no_argument, NULL, INFOBOX},
-		{"inputbox",     no_argument, NULL, INPUTBOX},
-		{"menu",         no_argument, NULL, MENU},
-		{"mixedform",    no_argument, NULL, MIXEDFORM},
-		{"mixedgauge",   no_argument, NULL, MIXEDGAUGE},
-		{"msgbox",       no_argument, NULL, MSGBOX},
-		{"passwordbox",  no_argument, NULL, PASSWORDBOX},
-		{"passwordform", no_argument, NULL, PASSWORDFORM},
-		{"pause",        no_argument, NULL, PAUSE},
-		{"radiolist",    no_argument, NULL, RADIOLIST},
-		{"rangebox",     no_argument, NULL, RANGEBOX},
-		{"textbox",      no_argument, NULL, TEXTBOX},
-		{"timebox",      no_argument, NULL, TIMEBOX},
-		{"treeview",     no_argument, NULL, TREEVIEW},
-		{"yesno",        no_argument, NULL, YESNO},
-		/* END */
-		{ NULL, 0, NULL, 0}
-	};
-
-	while ((input = getopt_long(argc, argv, "", longopts, NULL)) != -1) {
-		switch (input) {
-		/* Common options */
+	date_fmt_opt = NULL;
+	time_fmt_opt = NULL;
+
+	max_input_form_opt = 2048;
+
+	for (i = 0; i < argc; i++) {
+		if (strcmp(argv[i], "--and-dialog") == 0 ||
+		    strcmp(argv[i], "--and-widget") == 0) {
+			argc = i + 1;
+			break;
+		}
+	}
+	parsed = argc;
+	while ((arg = getopt_long(argc, argv, "", longopts, NULL)) != -1) {
+		switch (arg) {
+		/* Options */
+		case ALTERNATE_SCREEN:
+			screen_mode_opt = "smcup";
+			break;
+		case AND_DIALOG:
+			if (dialogbuilder == NULL)
+				exit_error("--and-dialog without previous "
+				    "--<dialog>", true);
+			break;
 		case ASCII_LINES:
-			conf.ascii_lines = true;
+			conf->ascii_lines = true;
 			break;
 		case BACKTITLE:
 			backtitle_opt = optarg;
-			if (conf.y == BSDDIALOG_CENTER)
-				conf.auto_topmargin = 2;
+			if (conf->y == BSDDIALOG_CENTER)
+				conf->auto_topmargin = 2;
 			break;
 		case BEGIN_X:
-			conf.x = (int)strtol(optarg, NULL, 10);
-			if (conf.x < BSDDIALOG_CENTER) {
-				printf("Error: --begin-x %d < %d",
-				    conf.x, BSDDIALOG_CENTER);
-				return (255);
-			}
+			conf->x = (int)strtol(optarg, NULL, 10);
+			if (conf->x < BSDDIALOG_CENTER)
+				exit_error("--begin-x < -1", false);
 			break;
 		case BEGIN_Y:
-			conf.y = (int)strtol(optarg, NULL, 10);
-			if (conf.y < BSDDIALOG_CENTER) {
-				printf("Error: --begin-y %d < %d",
-				    conf.y, BSDDIALOG_CENTER);
-				return (255);
-			}
-			conf.auto_topmargin = 0;
+			conf->y = (int)strtol(optarg, NULL, 10);
+			if (conf->y < BSDDIALOG_CENTER)
+				exit_error("--begin-y < -1", false);
+			conf->auto_topmargin = 0;
 			break;
 		case BIKESHED:
 			bikeshed_opt = true;
 			break;
 		case CANCEL_LABEL:
-			conf.button.cancel_label = optarg;
+			conf->button.cancel_label = optarg;
 			break;
-		case CLEAR:
-			conf.clear = true;
+		case CLEAR_DIALOG:
+			conf->clear = true;
+			break;
+		case CLEAR_SCREEN:
+			mandatory_dialog = false;
+			clear_screen_opt = true;
 			break;
 		case COLORS:
-			conf.text.highlight = true;
+			conf->text.highlight = true;
 			break;
 		case COLUMNS_PER_ROW:
-			conf.text.cols_per_row =
+			conf->text.cols_per_row =
 			    (u_int)strtoul(optarg, NULL, 10);
 			break;
 		case CR_WRAP:
@@ -435,72 +539,69 @@ int main(int argc, char *argv[argc])
 			date_fmt_opt = optarg;
 			break;
 		case DEFAULT_BUTTON:
-			conf.button.default_label = optarg;
+			conf->button.default_label = optarg;
 			break;
 		case DEFAULT_ITEM:
 			item_default_opt = optarg;
 			break;
 		case DEFAULT_NO:
-			conf.button.default_cancel = true;
+			conf->button.default_cancel = true;
 			break;
 		case DISABLE_ESC:
-			conf.key.enable_esc = false;
+			conf->key.enable_esc = false;
 			break;
 		case ESC_RETURNCANCEL:
 			esc_return_cancel_opt = true;
 			break;
 		case EXIT_LABEL:
-			conf.button.ok_label = optarg;
+			conf->button.ok_label = optarg;
 			break;
 		case EXTRA_BUTTON:
-			conf.button.with_extra = true;
+			conf->button.with_extra = true;
 			break;
 		case EXTRA_LABEL:
-			conf.button.extra_label = optarg;
+			conf->button.extra_label = optarg;
 			break;
 		case GENERIC_BUTTON1:
-			conf.button.generic1_label = optarg;
+			conf->button.generic1_label = optarg;
 			break;
 		case GENERIC_BUTTON2:
-			conf.button.generic2_label = optarg;
+			conf->button.generic2_label = optarg;
 			break;
-		case HELP:
-			usage();
-			return (BSDDIALOG_OK);
 		case HELP_BUTTON:
-			conf.button.with_help = true;
+			conf->button.with_help = true;
 			break;
 		case HELP_LABEL:
-			conf.button.help_label = optarg;
+			conf->button.help_label = optarg;
+			break;
+		case HELP_PRINT_NAME:
+			item_help_print_name_opt = true;
 			break;
 		case HELP_STATUS:
 			list_items_on_opt = true;
 			break;
-		case HELP_TAGS:
-			item_tag_help_opt = true;
-			break;
 		case HFILE:
-			conf.key.f1_file = optarg;
+			conf->key.f1_file = optarg;
 			break;
 		case HLINE:
 			if (optarg[0] != '\0')
-				conf.bottomtitle = optarg;
+				conf->bottomtitle = optarg;
 			break;
 		case HMSG:
-			conf.key.f1_message = optarg;
+			conf->key.f1_message = optarg;
 			break;
 		case IGNORE:
 			ignore_opt = true;
 			break;
 		case INSECURE:
-			conf.form.securech = '*';
+			conf->form.securech = '*';
+			break;
+		case ITEM_BOTTOM_DESC:
+			item_bottomdesc_opt = true;
 			break;
 		case ITEM_DEPTH:
 			item_depth_opt = true;
 			break;
-		case ITEM_HELP:
-			item_bottomdesc_opt = true;
-			break;
 		case ITEM_PREFIX:
 			item_prefix_opt = true;
 			break;
@@ -510,32 +611,29 @@ int main(int argc, char *argv[argc])
 		case MAX_INPUT:
 			max_input_form_opt = (u_int)strtoul(optarg, NULL, 10);
 			break;
-		case NO_ITEMS:
-			conf.menu.no_desc = true;
-			break;
 		case NO_CANCEL:
-			conf.button.without_cancel = true;
+			conf->button.without_cancel = true;
 			break;
-		case NO_COLLAPSE:
-			no_collapse_opt = true;
+		case NO_DESCRIPTIONS:
+			conf->menu.no_desc = true;
 			break;
 		case NO_LINES:
-			conf.no_lines = true;
+			conf->no_lines = true;
 			break;
-		case NO_NL_EXPAND:
-			no_nl_expand_opt = true;
+		case NO_NAMES:
+			conf->menu.no_name = true;
 			break;
 		case NO_OK:
-			conf.button.without_ok = true;
-			break;
-		case NO_TAGS:
-			conf.menu.no_name = true;
+			conf->button.without_ok = true;
 			break;
 		case NO_SHADOW:
-			conf.shadow = false;
+			conf->shadow = false;
+			break;
+		case NORMAL_SCREEN:
+			screen_mode_opt = "rmcup";
 			break;
 		case OK_LABEL:
-			conf.button.ok_label = optarg;
+			conf->button.ok_label = optarg;
 			break;
 		case OUTPUT_FD:
 			output_fd_opt = (int)strtol(optarg, NULL, 10);
@@ -547,29 +645,35 @@ int main(int argc, char *argv[argc])
 			item_always_quote_opt = true;
 			break;
 		case PRINT_MAXSIZE:
-			print_maxsize_opt = true;
+			mandatory_dialog = false;
+			ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws);
+			dprintf(output_fd_opt, "MaxSize: %d, %d\n",
+			    ws.ws_row, ws.ws_col);
 			break;
 		case PRINT_SIZE:
-			conf.get_height = &getH;
-			conf.get_width = &getW;
+			conf->get_height = &getH_opt;
+			conf->get_width = &getW_opt;
 			break;
 		case PRINT_VERSION:
-			printf("bsddialog version %s\n", BSDDIALOG_VERSION);
+			mandatory_dialog = false;
+			dprintf(output_fd_opt, "Version: %s\n",
+			    LIBBSDDIALOG_VERSION);
 			break;
 		case SAVE_THEME:
+			mandatory_dialog = false;
 			savethemefile = optarg;
 			break;
 		case SEPARATE_OUTPUT:
 			item_output_sepnl_opt = true;
 			break;
 		case SHADOW:
-			conf.shadow = true;
+			conf->shadow = true;
 			break;
 		case SINGLE_QUOTED:
 			item_singlequote_opt = true;
 			break;
 		case SLEEP:
-			conf.sleep = (u_int)strtoul(optarg, NULL, 10);
+			conf->sleep = (u_int)strtoul(optarg, NULL, 10);
 			break;
 		case STDERR:
 			output_fd_opt = STDERR_FILENO;
@@ -578,10 +682,16 @@ int main(int argc, char *argv[argc])
 			output_fd_opt = STDOUT_FILENO;
 			break;
 		case SWITCH_BUTTONS:
-			conf.button.always_active = false;
+			conf->button.always_active = false;
+			break;
+		case TAB_ESCAPE:
+			tab_escape_opt = true;
 			break;
 		case TAB_LEN:
-			conf.text.tablen = (u_int)strtoul(optarg, NULL, 10);
+			conf->text.tablen = (u_int)strtoul(optarg, NULL, 10);
+			break;
+		case TEXT_UNCHANGED:
+			text_unchanged_opt = true;
 			break;
 		case THEME:
 			if (strcasecmp(optarg, "bsddialog") == 0)
@@ -592,245 +702,313 @@ int main(int argc, char *argv[argc])
 				theme_opt = BSDDIALOG_THEME_FLAT;
 			else if (strcasecmp(optarg, "dialog") == 0)
 				theme_opt = BSDDIALOG_THEME_DIALOG;
-			else {
-				printf("Error: unknown theme\n");
-				return (255);
-			}
+			else
+				exit_error("--theme: <unknown> theme", false);
 			break;
 		case TIME_FORMAT:
 			time_fmt_opt = optarg;
 			break;
 		case TITLE:
-			conf.title = optarg;
-			break;
-		case TRIM:
-			trim_opt = true;
+			conf->title = optarg;
 			break;
-		case VERSION:
-			printf("bsddialog %s (libbsddialog %s)\n",
-			    BSDDIALOG_VERSION, LIBBSDDIALOG_VERSION);
-			return (BSDDIALOG_OK);
 		/* Dialogs */
+		case CALENDAR:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --calendar", true);
+			dialogbuilder = calendar_builder;
+			break;
 		case CHECKLIST:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --checklist", true);
 			dialogbuilder = checklist_builder;
-			conf.auto_downmargin = 1;
+			conf->auto_downmargin = 1;
 			break;
 		case DATEBOX:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --datebox", true);
 			dialogbuilder = datebox_builder;
 			break;
 		case FORM:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --form", true);
 			dialogbuilder = form_builder;
-			conf.auto_downmargin = 1;
+			conf->auto_downmargin = 1;
 			break;
 		case GAUGE:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --gauge", true);
 			dialogbuilder = gauge_builder;
 			break;
 		case INFOBOX:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --infobox", true);
 			dialogbuilder = infobox_builder;
 			break;
 		case INPUTBOX:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --inputbox", true);
 			dialogbuilder = inputbox_builder;
-			conf.auto_downmargin = 1;
+			conf->auto_downmargin = 1;
 			break;
 		case MENU:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --menu", true);
 			dialogbuilder = menu_builder;
-			conf.auto_downmargin = 1;
+			conf->auto_downmargin = 1;
 			break;
 		case MIXEDFORM:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --mixedform", true);
 			dialogbuilder = mixedform_builder;
-			conf.auto_downmargin = 1;
+			conf->auto_downmargin = 1;
 			break;
 		case MIXEDGAUGE:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --mixedgauge", true);
 			dialogbuilder = mixedgauge_builder;
 			break;
 		case MSGBOX:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --msgbox", true);
 			dialogbuilder = msgbox_builder;
 			break;
 		case PAUSE:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --pause", true);
 			dialogbuilder = pause_builder;
 			break;
 		case PASSWORDBOX:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --passwordbox", true);
 			dialogbuilder = passwordbox_builder;
-			conf.auto_downmargin = 1;
+			conf->auto_downmargin = 1;
 			break;
 		case PASSWORDFORM:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --passwordform", true);
 			dialogbuilder = passwordform_builder;
-			conf.auto_downmargin = 1;
+			conf->auto_downmargin = 1;
 			break;
 		case RADIOLIST:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --radiolist", true);
 			dialogbuilder = radiolist_builder;
-			conf.auto_downmargin = 1;
+			conf->auto_downmargin = 1;
 			break;
 		case RANGEBOX:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --rangebox", true);
 			dialogbuilder = rangebox_builder;
 			break;
 		case TEXTBOX:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --textbox", true);
 			dialogbuilder = textbox_builder;
-			textfromfile = true;
 			break;
 		case TIMEBOX:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --timebox", true);
 			dialogbuilder = timebox_builder;
 			break;
 		case TREEVIEW:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --treeview", true);
 			dialogbuilder = treeview_builder;
-			conf.auto_downmargin = 1;
+			conf->auto_downmargin = 1;
 			break;
 		case YESNO:
+			if (dialogbuilder != NULL)
+				exit_error("unexpected --yesno", true);
 			dialogbuilder = yesno_builder;
 			break;
-		/* Error */
-		default:
+		default: /* Error */
 			if (ignore_opt == true)
 				break;
-			usage();
-			return (255);
+			exit_error("--ignore to continue", true);
 		}
 	}
-	argc -= optind;
-	argv += optind;
-
-	if (print_maxsize_opt) {
-		ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws);
-		dprintf(output_fd_opt, "Screen size: (%d - %d)\n",
-		    ws.ws_row, ws.ws_col);
-		if (argc == 0)
-			return (BSDDIALOG_OK);
-	}
 
-	if (argc < 3) {
-		usage();
-		return (255);
-	}
-	if (textfromfile) /* textbox */
-		text = argv[0];
-	else {
-		if ((text = malloc(strlen(argv[0]) + 1)) == NULL) {
-			printf("Error: cannot allocate memory for text\n");
-			return (255);
-		}
-		custom_text(cr_wrap_opt, no_collapse_opt, no_nl_expand_opt,
-		    trim_opt, argv[0], text);
-	}
-	rows = (int)strtol(argv[1], NULL, 10);
-	cols = (int)strtol(argv[2], NULL, 10);
-	argc -= 3;
-	argv += 3;
-
-	/* bsddialog terminal mode */
-	if (bsddialog_init() != 0) {
-		printf("Error: %s\n", bsddialog_geterror());
-		return (255);
-	}
+	return (parsed);
+}
 
-	signal(SIGINT, sigint_handler);
+int main(int argc, char *argv[argc])
+{
+	int i, rows, cols, retval, parsed, nargc, firstoptind;
+	char *text, **nargv, *pn;
+	struct bsddialog_conf conf;
 
-	if (theme_opt != BSDDIALOG_THEME_FLAT)
-		if (bsddialog_set_default_theme(theme_opt) != BSDDIALOG_OK)
-			errorexit(NULL);
-	if (loadthemefile != NULL)
-		if (loadtheme(loadthemefile, errorbuilder) != BSDDIALOG_OK)
-			errorexit(errorbuilder);
-	if (bikeshed_opt)
-		if (bikeshed(&conf, errorbuilder) != BSDDIALOG_OK)
-			errorexit(errorbuilder);
-
-	if (backtitle_opt != NULL)
-		if( bsddialog_backtitle(&conf, backtitle_opt))
-			errorexit(NULL);
-
-	if (dialogbuilder != NULL) {
-		retval = dialogbuilder(&conf, text, rows, cols, argc, argv,
-		    errorbuilder);
-		if (retval == BSDDIALOG_ERROR)
-			errorexit(errorbuilder);
-	} else
-		retval = BSDDIALOG_OK;
+	setlocale(LC_ALL, "");
 
-	if (savethemefile != NULL)
-		if (savetheme(savethemefile, errorbuilder, BSDDIALOG_VERSION) !=
-		    BSDDIALOG_OK)
-			errorexit(errorbuilder);
+	in_bsddialog_mode = false;
+	mandatory_dialog = true;
+	firstoptind = optind;
+	pn = argv[0];
+	retval = BSDDIALOG_OK;
 
-	bsddialog_end();
-	/* end bsddialog terminal mode */
+	for (i = 0; i < argc; i++) {
+		if (strcmp(argv[i], "--version") == 0) {
+			printf("Version: %s\n", LIBBSDDIALOG_VERSION);
+			return (BSDDIALOG_OK);
+		}
+		if (strcmp(argv[i], "--help") == 0) {
+			usage();
+			return (BSDDIALOG_OK);
+		}
+	}
 
-	if (textfromfile == false)
-		free(text);
+	while (true) {
+		parsed = parseargs(argc, argv, &conf);
+		nargc = argc - parsed;
+		nargv = argv + parsed;
+		argc = parsed - optind;
+		argv += optind;
 
-	if (conf.get_height != NULL && conf.get_width != NULL)
-		dprintf(output_fd_opt, "Dialog size: (%d - %d)\n",
-		    *conf.get_height, *conf.get_width);
+		if (mandatory_dialog && dialogbuilder == NULL)
+			exit_error("expected a --<dialog>", true);
 
-	if (retval == BSDDIALOG_ESC && esc_return_cancel_opt)
-		retval = BSDDIALOG_CANCEL;
+		if (dialogbuilder == NULL && argc > 0)
+			error_args("(no --<dialog>)", argc, argv);
 
-	return (retval);
-}
+		/* --print-maxsize or --print-version */
+		if (mandatory_dialog == false && savethemefile == NULL &&
+		    clear_screen_opt == false)
+			return (BSDDIALOG_OK);
 
-void sigint_handler(int sig)
-{
-	bsddialog_end();
+		/* --<dialog>, --save-theme or clear-screen */
+		if (dialogbuilder != NULL) {
+			if (argc < 3)
+				exit_error("expected <text> <rows> <cols>",
+				    true);
+			if ((text = strdup(argv[0])) == NULL)
+				exit_error("cannot allocate text", false);
+			if (dialogbuilder != textbox_builder)
+				custom_text(argv[0], text);
+			rows = (int)strtol(argv[1], NULL, 10);
+			cols = (int)strtol(argv[2], NULL, 10);
+			argc -= 3;
+			argv += 3;
+		}
 
-	exit(255);
-}
+		/* bsddialog terminal mode (first iteration) */
+		start_bsddialog_mode();
+
+		if (screen_mode_opt != NULL) {
+			screen_mode_opt = tigetstr(screen_mode_opt);
+			if (screen_mode_opt != NULL &&
+			    screen_mode_opt != (char*)-1) {
+				tputs(screen_mode_opt, 1, putchar);
+				fflush(stdout);
+				 /* only to refresh, useless in the library */
+				bsddialog_clearterminal();
+			}
+		}
 
-void errorexit(char *errbuf)
-{
-	bsddialog_end();
+		/* theme */
+		if (theme_opt >= 0)
+			bsddialog_set_default_theme(theme_opt);
+		if (loadthemefile != NULL)
+			loadtheme(loadthemefile);
+		if (bikeshed_opt)
+			bikeshed(&conf);
+		if (savethemefile != NULL)
+			savetheme(savethemefile, LIBBSDDIALOG_VERSION);
+
+		/* backtitle and dialog */
+		if (dialogbuilder == NULL)
+			break;
+		if (backtitle_opt != NULL)
+			if(bsddialog_backtitle(&conf, backtitle_opt))
+				exit_error(bsddialog_geterror(), false);
+		retval = dialogbuilder(&conf, text, rows, cols, argc, argv);
+		free(text);
+		if (retval == BSDDIALOG_ERROR)
+			exit_error(bsddialog_geterror(), false);
+		if (retval == BSDDIALOG_ESC && esc_return_cancel_opt)
+			retval = BSDDIALOG_CANCEL;
+		if (conf.get_height != NULL && conf.get_width != NULL)
+			dprintf(output_fd_opt, "DialogSize: %d, %d\n",
+			    *conf.get_height, *conf.get_width);
+		if (clear_screen_opt)
+			bsddialog_clearterminal();
+		clear_screen_opt = false;
+		/* --and-dialog ends loop with Cancel or ESC */
+		if (retval == BSDDIALOG_CANCEL || retval == BSDDIALOG_ESC)
+			break;
+		argc = nargc;
+		argv = nargv;
+		if (argc <= 0)
+			break;
+		/* prepare next parseargs() call */
+		argc++;
+		argv--;
+		argv[0] = pn;
+		optind = firstoptind;
+	}
 
-	if (errbuf != NULL && errbuf[0] != '\0')
-		printf("Error: %s\n", errbuf);
-	else
-		printf("Error: %s\n", bsddialog_geterror());
+	if (in_bsddialog_mode) {
+		/* --clear-screen can be a single option */
+		if (clear_screen_opt)
+			bsddialog_clearterminal();
+		bsddialog_end();
+	}
+	/* end bsddialog terminal mode */
 
-	exit(255);
+	return (retval);
 }
 
-void
-custom_text(bool cr_wrap, bool no_collapse, bool no_nl_expand, bool trim,
-    char *text, char *buf)
+void custom_text(char *text, char *buf)
 {
+	bool trim, crwrap;
 	int i, j;
 
+	if (strstr(text, "\\n") == NULL) {
+		/* "hasnl" mode */
+		trim = true;
+		crwrap = true;
+	} else {
+		trim = false;
+		crwrap = cr_wrap_opt;
+	}
+	if (text_unchanged_opt) {
+		trim = false;
+		crwrap = true;
+	}
+
 	i = j = 0;
 	while (text[i] != '\0') {
 		switch (text[i]) {
 		case '\\':
 			buf[j] = '\\';
 			switch (text[i+1]) {
-			case '\\':
-				i++;
-				break;
-			case 'n':
-				if (no_nl_expand) {
-					j++;
-					buf[j] = 'n';
-				} else
-					buf[j] = '\n';
+			case 'n': /* implicitly in "hasnl" mode */
+				buf[j] = '\n';
 				i++;
+				if (text[i+1] == '\n')
+					i++;
 				break;
 			case 't':
-				if (no_collapse) {
+				if (tab_escape_opt) {
+					buf[j] = '\t';
+				} else {
 					j++;
 					buf[j] = 't';
-				} else
-					buf[j] = '\t';
+				}
 				i++;
 				break;
 			}
 			break;
 		case '\n':
-			buf[j] = cr_wrap ? ' ' : '\n';
+			buf[j] = crwrap ? '\n' : ' ';
 			break;
 		case '\t':
-			buf[j] = no_collapse ? '\t' : ' ';
+			buf[j] = text_unchanged_opt ? '\t' : ' ';
 			break;
 		default:
 			buf[j] = text[i];
 		}
 		i++;
-		j += (buf[j] == ' ' && trim && j > 0 && buf[j-1] == ' ') ?
-		    0 : 1;
+		if (!trim || buf[j] != ' ' || j == 0 || buf[j-1] != ' ')
+			j++;
 	}
 	buf[j] = '\0';
 }
@@ -841,12 +1019,13 @@ int gauge_builder(BUILDER_ARGS)
 	int output;
 	unsigned int perc;
 
-	if (argc > 0) {
-		perc = argc > 0 ? (u_int)strtoul(argv[0], NULL, 10) : 0;
+	perc = 0;
+	if (argc == 1) {
+		perc = (u_int)strtoul(argv[0], NULL, 10);
 		perc = perc > 100 ? 100 : perc;
+	} else if (argc > 1) {
+		error_args("--gauge", argc - 1, argv + 1);
 	}
-	else
-		perc = 0;
 
 	output = bsddialog_gauge(conf, text, rows, cols, perc, STDIN_FILENO,
 	    "XXX");
@@ -856,11 +1035,10 @@ int gauge_builder(BUILDER_ARGS)
 
 int infobox_builder(BUILDER_ARGS)
 {
-	int output;
-
-	output = bsddialog_infobox(conf, text, rows, cols);
+	if (argc > 0)
+		error_args("--infobox", argc, argv);
 
-	return (output);
+	return (bsddialog_infobox(conf, text, rows, cols));
 }
 
 int mixedgauge_builder(BUILDER_ARGS)
@@ -869,10 +1047,8 @@ int mixedgauge_builder(BUILDER_ARGS)
 	unsigned int i, mainperc, nminibars;
 	const char **minilabels;
 
-	if (argc < 1 || (((argc-1) % 2) != 0) ) {
-		strcpy(errbuf, "bad --mixedgauge arguments\n");
-		return (BSDDIALOG_ERROR);
-	}
+	if (argc < 1 || (((argc-1) % 2) != 0) )
+		exit_error("bad --mixedgauge arguments", true);
 
 	mainperc = (u_int)strtoul(argv[0], NULL, 10);
 	mainperc = mainperc > 100 ? 100 : mainperc;
@@ -880,14 +1056,10 @@ int mixedgauge_builder(BUILDER_ARGS)
 	argv++;
 
 	nminibars  = argc / 2;
-	if ((minilabels = calloc(nminibars, sizeof(char*))) == NULL) {
-		strcpy(errbuf, "Cannot allocate memory for minilabels\n");
-		return BSDDIALOG_ERROR;
-	}
-	if ((minipercs = calloc(nminibars, sizeof(int))) == NULL) {
-		strcpy(errbuf, "Cannot allocate memory for minipercs\n");
-		return BSDDIALOG_ERROR;
-	}
+	if ((minilabels = calloc(nminibars, sizeof(char*))) == NULL)
+		exit_error("Cannot allocate memory for minilabels", false);
+	if ((minipercs = calloc(nminibars, sizeof(int))) == NULL)
+		exit_error("Cannot allocate memory for minipercs", false);
 
 	for (i = 0; i < nminibars; i++) {
 		minilabels[i] = argv[i * 2];
@@ -902,11 +1074,10 @@ int mixedgauge_builder(BUILDER_ARGS)
 
 int msgbox_builder(BUILDER_ARGS)
 {
-	int output;
+	if (argc > 0)
+		error_args("--msgbox", argc, argv);
 
-	output = bsddialog_msgbox(conf, text, rows, cols);
-
-	return (output);
+	return (bsddialog_msgbox(conf, text, rows, cols));
 }
 
 int pause_builder(BUILDER_ARGS)
@@ -914,10 +1085,10 @@ int pause_builder(BUILDER_ARGS)
 	int output;
 	unsigned int secs;
 
-	if (argc < 1) {
-		strcpy(errbuf, "missing <seconds> for --pause\n");
-		return (BSDDIALOG_ERROR);
-	}
+	if (argc == 0)
+		exit_error("--pause missing <seconds>", true);
+	if (argc > 1)
+		error_args("--pause", argc - 1, argv + 1);
 
 	secs = (u_int)strtoul(argv[0], NULL, 10);
 	output = bsddialog_pause(conf, text, rows, cols, secs);
@@ -929,25 +1100,22 @@ int rangebox_builder(BUILDER_ARGS)
 {
 	int output, min, max, value;
 
-	if (argc < 2) {
-		strcpy(errbuf, "usage --rangebox <text> <rows> <cols> "
-		    "<min> <max> [<init>]\n");
-		return (BSDDIALOG_ERROR);
-	}
+	if (argc < 2)
+		exit_error("--rangebox missing <min> <max> [<init>]", true);
+	if (argc > 3)
+		error_args("--rangebox", argc - 3, argv + 3);
 
 	min = (int)strtol(argv[0], NULL, 10);
 	max = (int)strtol(argv[1], NULL, 10);
 
-	if (argc > 2) {
+	if (argc == 3) {
 		value = (int)strtol(argv[2], NULL, 10);
 		value = value < min ? min : value;
 		value = value > max ? max : value;
-	}
-	else
+	} else
 		value = min;
 
 	output = bsddialog_rangebox(conf, text, rows, cols, min, max, &value);
-
 	dprintf(output_fd_opt, "%d", value);
 
 	return (output);
@@ -955,46 +1123,54 @@ int rangebox_builder(BUILDER_ARGS)
 
 int textbox_builder(BUILDER_ARGS)
 {
-	int output;
-
-	output = bsddialog_textbox(conf, text, rows, cols);
+	if (argc > 0)
+		error_args("--textbox", argc, argv);
 
-	return (output);
+	return (bsddialog_textbox(conf, text, rows, cols));
 }
 
 int yesno_builder(BUILDER_ARGS)
 {
-	int output;
+	if (argc > 0)
+		error_args("--yesno", argc, argv);
 
-	output = bsddialog_yesno(conf, text, rows, cols);
-
-	return (output);
+	return (bsddialog_yesno(conf, text, rows, cols));
 }
 
-/* DATE and TIME */
-int datebox_builder(BUILDER_ARGS)
+/* CALENDAR, DATE and TIME */
+static int date(BUILDER_ARGS, bool is_datebox)
 {
-	int output;
+	int ret;
 	unsigned int yy, mm, dd;
 	time_t cal;
 	struct tm *localtm;
 	char stringdate[1024];
+	const char *name;
 
+	name = is_datebox ? "--datebox" : "--calendar";
 	time(&cal);
 	localtm = localtime(&cal);
 	yy = localtm->tm_year + 1900;
 	mm = localtm->tm_mon + 1;
 	dd = localtm->tm_mday;
 
-	if (argc == 3) {
-		yy = (u_int)strtoul(argv[0], NULL, 10);
+	if (argc > 3) {
+		error_args(name, argc - 3, argv + 3);
+	} else if (argc == 3) {
+		dd = (u_int)strtoul(argv[0], NULL, 10);
 		mm = (u_int)strtoul(argv[1], NULL, 10);
-		dd = (u_int)strtoul(argv[2], NULL, 10);
+		yy = (u_int)strtoul(argv[2], NULL, 10);
+		if (yy < 1900)
+			yy = 1900;
+		/* max yy check is in lib */
 	}
 
-	output = bsddialog_datebox(conf, text, rows, cols, &yy, &mm, &dd);
-	if (output != BSDDIALOG_OK)
-		return (output);
+	if (is_datebox)
+		ret = bsddialog_datebox(conf, text, rows, cols, &yy, &mm, &dd);
+	else
+		ret = bsddialog_calendar(conf, text, rows, cols, &yy, &mm, &dd);
+	if (ret != BSDDIALOG_OK)
+		return (ret);
 
 	if (date_fmt_opt != NULL) {
 		time(&cal);
@@ -1005,12 +1181,36 @@ int datebox_builder(BUILDER_ARGS)
 		strftime(stringdate, 1024, date_fmt_opt, localtm);
 		dprintf(output_fd_opt, "%s", stringdate);
 	} else if (bikeshed_opt && (dd % 2 == 0)) {
-		dprintf(output_fd_opt, "%u/%u/%u", yy, mm, dd);
+		dprintf(output_fd_opt, "%u/%u/%u", dd, mm, yy);
 	} else {
-		dprintf(output_fd_opt, "%u/%02u/%02u", yy, mm, dd);
+		dprintf(output_fd_opt, "%02u/%02u/%u", dd, mm, yy);
 	}
 
-	return (output);
+	return (ret);
+}
+
+int calendar_builder(BUILDER_ARGS)
+{
+	if (rows == 2) {
+		/*
+		 * (bsdconfig/share/dialog.subr:1352) f_dialog_calendar_size()
+		 * computes height 2 for `dialog --calendar' in
+		 * (bsdconfig/usermgmt/share/user_input.subr:517)
+		 * f_dialog_input_expire_password() and
+		 * (bsdconfig/usermgmt/share/user_input.subr:660)
+		 * f_dialog_input_expire_account().
+		 * Use height auto-sizing that is min height like dialog,
+		 * documented in bsddialog(1).
+		 */
+		rows = 0;
+	}
+
+	return (date(conf, text, rows, cols, argc, argv, false));
+}
+
+int datebox_builder(BUILDER_ARGS)
+{
+	return (date(conf, text, rows, cols, argc, argv, true));
 }
 
 int timebox_builder(BUILDER_ARGS)
@@ -1027,7 +1227,9 @@ int timebox_builder(BUILDER_ARGS)
 	mm = localtm->tm_min;
 	ss = localtm->tm_sec;
 
-	if (argc == 3) {
+	if (argc > 3) {
+		error_args("--timebox", argc - 3, argv + 3);
+	} else if (argc == 3) {
 		hh = (u_int)strtoul(argv[0], NULL, 10);
 		mm = (u_int)strtoul(argv[1], NULL, 10);
 		ss = (u_int)strtoul(argv[2], NULL, 10);
@@ -1055,9 +1257,9 @@ int timebox_builder(BUILDER_ARGS)
 }
 
 /* MENU */
-static int
-get_menu_items(char *errbuf, int argc, char **argv, bool setprefix,
-    bool setdepth, bool setname, bool setdesc, bool setstatus, bool sethelp,
+static void
+get_menu_items(int argc, char **argv, bool setprefix, bool setdepth,
+    bool setname, bool setdesc, bool setstatus, bool sethelp,
     unsigned int *nitems, struct bsddialog_menuitem **items, int *focusitem)
 {
 	unsigned int i, j, sizeitem;
@@ -1071,17 +1273,14 @@ get_menu_items(char *errbuf, int argc, char **argv, bool setprefix,
 	sizeitem += setdesc   ? 1 : 0;
 	sizeitem += setstatus ? 1 : 0;
 	sizeitem += sethelp   ? 1 : 0;
-	if ((argc % sizeitem) != 0) {
-		strcpy(errbuf, "bad number of arguments for this menu\n");
-		return (BSDDIALOG_ERROR);
-	}
+	if ((argc % sizeitem) != 0)
+		exit_error("\"menu\" bad arguments items number", true);
+
 	*nitems = argc / sizeitem;
 
 	*items = calloc(*nitems, sizeof(struct bsddialog_menuitem));
-	if (items == NULL) {
-		strcpy(errbuf, "cannot allocate memory menu items\n");
-		return (BSDDIALOG_ERROR);
-	}
+	if (items == NULL)
+		exit_error("cannot allocate memory \"menu\" items", false);
 
 	j = 0;
 	for (i = 0; i < *nitems; i++) {
@@ -1101,71 +1300,86 @@ get_menu_items(char *errbuf, int argc, char **argv, bool setprefix,
 			if (strcmp((*items)[i].name, item_default_opt) == 0)
 				*focusitem = i;
 	}
-
-	return (BSDDIALOG_OK);
 }
 
 static void
 print_menu_items(int output, int nitems, struct bsddialog_menuitem *items,
-    int focusitem)
+    int focusitem, bool ismenu)
 {
-	bool sep, toquote;
+	bool sep, sepfirst, seplast, toquote;
 	int i;
-	char *sepstr, quotech;
-	const char *focusname;
+	char quotech;
+	const char *focusname, *sepstr;
 
 	sep = false;
 	quotech = item_singlequote_opt ? '\'' : '"';
-	sepstr = item_output_sep_opt != NULL ? item_output_sep_opt : " ";
 
-	if (output != BSDDIALOG_OK && output != BSDDIALOG_ERROR &&
-	    focusitem >= 0) {
-		focusname = items[focusitem].name;
+	if (output == BSDDIALOG_ERROR || output == BSDDIALOG_CANCEL ||
+	    output == BSDDIALOG_ESC)
+		return;
 
-		if (output == BSDDIALOG_HELP) {
-			dprintf(output_fd_opt, "HELP ");
+	if (output == BSDDIALOG_HELP) {
+		dprintf(output_fd_opt, "HELP ");
 
-			if (item_bottomdesc_opt && item_tag_help_opt == false)
+		if (focusitem >= 0) {
+			focusname = items[focusitem].name;
+			if (item_bottomdesc_opt &&
+			    item_help_print_name_opt == false)
 				focusname = items[focusitem].bottomdesc;
-		}
-
-		toquote = item_always_quote_opt ||
-		    (item_output_sepnl_opt == false &&
-		     strchr(focusname, ' ') != NULL);
 
-		if (toquote)
-			dprintf(output_fd_opt, "%c", quotech);
-		dprintf(output_fd_opt, "%s", focusname);
-		if (toquote)
-			dprintf(output_fd_opt, "%c", quotech);
+			toquote = false;
+			if (strchr(focusname, ' ') != NULL) {
+				toquote = item_always_quote_opt;
+				if (ismenu == false &&
+				    item_output_sepnl_opt == false)
+					toquote = true;
+			}
+			if (toquote) {
+				dprintf(output_fd_opt, "%c%s%c",
+				    quotech, focusname, quotech);
+			} else
+				dprintf(output_fd_opt, "%s", focusname);
+		}
 
+		if (ismenu || list_items_on_opt == false)
+			return;
 		sep = true;
 	}
 
-	if (output != BSDDIALOG_OK &&
-	    !(output == BSDDIALOG_HELP && list_items_on_opt))
-		return;
+	sepfirst = false;
+	if ((sepstr = item_output_sep_opt) == NULL)
+		sepstr = item_output_sepnl_opt ? "\n" : " ";
+	else
+		sepfirst = true;
+
+	seplast = false;
+	if (item_output_sepnl_opt) {
+		sepfirst = false;
+		seplast = true;
+	}
 
 	for (i = 0; i < nitems; i++) {
 		if (items[i].on == false)
 			continue;
 
-		if (sep == true) {
+		if (sep || sepfirst)
 			dprintf(output_fd_opt, "%s", sepstr);
-			if (item_output_sepnl_opt)
-				dprintf(output_fd_opt, "\n");
-		}
-		sep = true;
+		sep = false;
 
-		toquote = item_always_quote_opt ||
-		    (item_output_sepnl_opt == false &&
-		     strchr(items[i].name, ' ') != NULL);
-
-		if (toquote)
-			dprintf(output_fd_opt, "%c", quotech);
-		dprintf(output_fd_opt, "%s", items[i].name);
+		toquote = false;
+		if (strchr(items[i].name, ' ') != NULL) {
+			toquote = item_always_quote_opt;
+			if (ismenu == false && item_output_sepnl_opt == false)
+				toquote = true;
+		}
 		if (toquote)
-			dprintf(output_fd_opt, "%c", quotech);
+			dprintf(output_fd_opt, "%c%s%c",
+			    quotech, items[i].name, quotech);
+		else
+			dprintf(output_fd_opt, "%s", items[i].name);
+
+		if (seplast)
+			dprintf(output_fd_opt, "%s", sepstr);
 	}
 }
 
@@ -1175,23 +1389,17 @@ int checklist_builder(BUILDER_ARGS)
 	unsigned int menurows, nitems;
 	struct bsddialog_menuitem *items;
 
-	if (argc < 1) {
-		strcpy(errbuf, "<menurows> not provided");
-		return (BSDDIALOG_ERROR);
-	}
-
+	if (argc < 1)
+		exit_error("--checklist missing <menurows>", true);
 	menurows = (u_int)strtoul(argv[0], NULL, 10);
 
-	output = get_menu_items(errbuf, argc-1, argv+1, item_prefix_opt,
-	    item_depth_opt, true, true, true, item_bottomdesc_opt, &nitems,
-	    &items, &focusitem);
-	if (output != 0)
-		return (output);
+	get_menu_items(argc-1, argv+1, item_prefix_opt, item_depth_opt, true,
+	    true, true, item_bottomdesc_opt, &nitems, &items, &focusitem);
 
 	output = bsddialog_checklist(conf, text, rows, cols, menurows, nitems,
 	    items, &focusitem);
 
-	print_menu_items(output, nitems, items, focusitem);
+	print_menu_items(output, nitems, items, focusitem, false);
 
 	free(items);
 
@@ -1204,23 +1412,17 @@ int menu_builder(BUILDER_ARGS)
 	unsigned int menurows, nitems;
 	struct bsddialog_menuitem *items;
 
-	if (argc < 1) {
-		strcpy(errbuf, "<menurows> not provided");
-		return (BSDDIALOG_ERROR);
-	}
-
+	if (argc < 1)
+		exit_error("--menu missing <menurows>", true);
 	menurows = (u_int)strtoul(argv[0], NULL, 10);
 
-	output = get_menu_items(errbuf, argc-1, argv+1, item_prefix_opt,
-	    item_depth_opt, true, true, false, item_bottomdesc_opt, &nitems,
-	    &items, &focusitem);
-	if (output != 0)
-		return (output);
+	get_menu_items(argc-1, argv+1, item_prefix_opt, item_depth_opt, true,
+	    true, false, item_bottomdesc_opt, &nitems, &items, &focusitem);
 
 	output = bsddialog_menu(conf, text, rows, cols, menurows, nitems,
 	    items, &focusitem);
 
-	print_menu_items(output, nitems, items, focusitem);
+	print_menu_items(output, nitems, items, focusitem, true);
 
 	free(items);
 
@@ -1233,23 +1435,17 @@ int radiolist_builder(BUILDER_ARGS)
 	unsigned int menurows, nitems;
 	struct bsddialog_menuitem *items;
 
-	if (argc < 1) {
-		strcpy(errbuf, "<menurows> not provided");
-		return (BSDDIALOG_ERROR);
-	}
-
+	if (argc < 1)
+		exit_error("--radiolist missing <menurows>", true);
 	menurows = (u_int)strtoul(argv[0], NULL, 10);
 
-	output = get_menu_items(errbuf, argc-1, argv+1, item_prefix_opt,
-	    item_depth_opt, true, true, true, item_bottomdesc_opt, &nitems,
-	    &items, &focusitem);
-	if (output != 0)
-		return (output);
+	get_menu_items(argc-1, argv+1, item_prefix_opt, item_depth_opt, true,
+	    true, true, item_bottomdesc_opt, &nitems, &items, &focusitem);
 
 	output = bsddialog_radiolist(conf, text, rows, cols, menurows, nitems,
 	    items, &focusitem);
 
-	print_menu_items(output, nitems, items, focusitem);
+	print_menu_items(output, nitems, items, focusitem, false);
 
 	free(items);
 
@@ -1262,18 +1458,12 @@ int treeview_builder(BUILDER_ARGS)
 	unsigned int menurows, nitems;
 	struct bsddialog_menuitem *items;
 
-	if (argc < 1) {
-		strcpy(errbuf, "<menurows> not provided");
-		return (BSDDIALOG_ERROR);
-	}
-
+	if (argc < 1)
+		exit_error("--treeview missing <menurows>", true);
 	menurows = (u_int)strtoul(argv[0], NULL, 10);
 
-	output = get_menu_items(errbuf, argc-1, argv+1, item_prefix_opt,
-	    true, true, true, true, item_bottomdesc_opt, &nitems, &items,
-	    &focusitem);
-	if (output != 0)
-		return (output);
+	get_menu_items(argc-1, argv+1, item_prefix_opt, true, true, true, true,
+	    item_bottomdesc_opt, &nitems, &items, &focusitem);
 
 	conf->menu.no_name = true;
 	conf->menu.align_left = true;
@@ -1281,7 +1471,7 @@ int treeview_builder(BUILDER_ARGS)
 	output = bsddialog_radiolist(conf, text, rows, cols, menurows, nitems,
 	    items, &focusitem);
 
-	print_menu_items(output, nitems, items, focusitem);
+	print_menu_items(output, nitems, items, focusitem, false);
 
 	free(items);
 
@@ -1289,18 +1479,6 @@ int treeview_builder(BUILDER_ARGS)
 }
 
 /* FORM */
-static int
-alloc_formitems(int nitems, struct bsddialog_formitem **items, char *errbuf)
-{
-	*items = calloc(nitems, sizeof(struct bsddialog_formitem));
-	if (items == NULL) {
-		strcpy(errbuf, "cannot allocate memory for form items\n");
-		return (BSDDIALOG_ERROR);
-	}
-
-	return (BSDDIALOG_OK);
-}
-
 static void
 print_form_items(int output, int nitems, struct bsddialog_formitem *items)
 {
@@ -1321,20 +1499,19 @@ int form_builder(BUILDER_ARGS)
 	unsigned int i, j, flags, formheight, nitems, sizeitem;
 	struct bsddialog_formitem *items;
 
-	sizeitem = item_bottomdesc_opt ? 9 : 8;
-	if (argc < 1 || (argc - 1) % sizeitem != 0) {
-		strcpy(errbuf, "bad number of arguments for this form\n");
-		return (BSDDIALOG_ERROR);
-	}
-
+	if (argc < 1)
+		exit_error("--form missing <formheight>", true);
 	formheight = (u_int)strtoul(argv[0], NULL, 10);
 
 	argc--;
 	argv++;
+	sizeitem = item_bottomdesc_opt ? 9 : 8;
+	if (argc % sizeitem != 0)
+		exit_error("--form bad number of arguments items", true);
 
 	nitems = argc / sizeitem;
-	if (alloc_formitems(nitems, &items, errbuf) != BSDDIALOG_OK)
-		return (BSDDIALOG_ERROR);
+	if ((items = calloc(nitems, sizeof(struct bsddialog_formitem))) == NULL)
+		exit_error("cannot allocate memory for form items", false);
 	j = 0;
 	for (i = 0; i < nitems; i++) {
 		items[i].label	= argv[j++];
@@ -1369,6 +1546,9 @@ int inputbox_builder(BUILDER_ARGS)
 	int output;
 	struct bsddialog_formitem item;
 
+	if (argc > 1)
+		error_args("--inputbox", argc - 1, argv + 1);
+
 	item.label	 = "";
 	item.ylabel	 = 0;
 	item.xlabel	 = 0;
@@ -1376,7 +1556,7 @@ int inputbox_builder(BUILDER_ARGS)
 	item.yfield	 = 0;
 	item.xfield	 = 0;
 	item.fieldlen    = 1;
-	item.maxvaluelen = max_input_form_opt > 0 ? max_input_form_opt : 2048;
+	item.maxvaluelen = max_input_form_opt;
 	item.flags	 = BSDDIALOG_FIELDNOCOLOR;
 	item.flags      |= BSDDIALOG_FIELDCURSOREND;
 	item.flags      |= BSDDIALOG_FIELDEXTEND;
@@ -1394,20 +1574,19 @@ int mixedform_builder(BUILDER_ARGS)
 	unsigned int i, j, formheight, nitems, sizeitem;
 	struct bsddialog_formitem *items;
 
-	sizeitem = item_bottomdesc_opt ? 10 : 9;
-	if (argc < 1 || (argc-1) % sizeitem != 0) {
-		strcpy(errbuf, "bad number of arguments for this form\n");
-		return (BSDDIALOG_ERROR);
-	}
-
+	if (argc < 1)
+		exit_error("--mixedform missing <formheight>", true);
 	formheight = (u_int)strtoul(argv[0], NULL, 10);
 
 	argc--;
 	argv++;
+	sizeitem = item_bottomdesc_opt ? 10 : 9;
+	if (argc % sizeitem != 0)
+		exit_error("--mixedform bad number of arguments items", true);
 
 	nitems = argc / sizeitem;
-	if (alloc_formitems(nitems, &items, errbuf) != BSDDIALOG_OK)
-		return (BSDDIALOG_ERROR);
+	if ((items = calloc(nitems, sizeof(struct bsddialog_formitem))) == NULL)
+		exit_error("cannot allocate memory for form items", false);
 	j = 0;
 	for (i = 0; i < nitems; i++) {
 		items[i].label	     = argv[j++];
@@ -1435,6 +1614,9 @@ int passwordbox_builder(BUILDER_ARGS)
 	int output;
 	struct bsddialog_formitem item;
 
+	if (argc > 1)
+		error_args("--passwordbox", argc - 1, argv + 1);
+
 	item.label	 = "";
 	item.ylabel	 = 0;
 	item.xlabel	 = 0;
@@ -1442,7 +1624,7 @@ int passwordbox_builder(BUILDER_ARGS)
 	item.yfield	 = 0;
 	item.xfield	 = 0;
 	item.fieldlen	 = 1;
-	item.maxvaluelen = max_input_form_opt > 0 ? max_input_form_opt : 2048;
+	item.maxvaluelen = max_input_form_opt;
 	item.flags       = BSDDIALOG_FIELDHIDDEN;
 	item.flags      |= BSDDIALOG_FIELDNOCOLOR;
 	item.flags      |= BSDDIALOG_FIELDCURSOREND;
@@ -1461,21 +1643,20 @@ int passwordform_builder(BUILDER_ARGS)
 	unsigned int i, j, flags, formheight, nitems, sizeitem;
 	struct bsddialog_formitem *items;
 
-	sizeitem = item_bottomdesc_opt ? 9 : 8;
-	if (argc < 1 || (argc - 1) % sizeitem != 0) {
-		strcpy(errbuf, "bad number of arguments for this form\n");
-		return (BSDDIALOG_ERROR);
-	}
-
+	if (argc < 1)
+		exit_error("--passwordform missing <formheight>", true);
 	formheight = (u_int)strtoul(argv[0], NULL, 10);
-	flags = BSDDIALOG_FIELDHIDDEN;
 
 	argc--;
 	argv++;
+	sizeitem = item_bottomdesc_opt ? 9 : 8;
+	if (argc % sizeitem != 0)
+		exit_error("--passwordform bad arguments items number", true);
 
+	flags = BSDDIALOG_FIELDHIDDEN;
 	nitems = argc / sizeitem;
-	if (alloc_formitems(nitems, &items, errbuf) != BSDDIALOG_OK)
-		return (BSDDIALOG_ERROR);
+	if ((items = calloc(nitems, sizeof(struct bsddialog_formitem))) == NULL)
+		exit_error("cannot allocate memory for form items", false);
 	j = 0;
 	for (i = 0; i < nitems; i++) {
 		items[i].label	= argv[j++];
diff --git a/examples_library/calendar.c b/examples_library/calendar.c
new file mode 100644
index 000000000000..33e38c69a81b
--- /dev/null
+++ b/examples_library/calendar.c
@@ -0,0 +1,55 @@
+/*-
+ * SPDX-License-Identifier: CC0-1.0
+ *
+ * Written in 2022 by Alfonso Sabato Siciliano.
+ * To the extent possible under law, the author has dedicated all copyright
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty, see:
+ *   <http://creativecommons.org/publicdomain/zero/1.0/>.
+ */
+
+#include <bsddialog.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+int main()
+{
+	int output;
+	unsigned int yy, mm, dd;
+	struct bsddialog_conf conf;
+	time_t cal;
+	struct tm *localtm;
+
+	time(&cal);
+	localtm = localtime(&cal);
+	yy = localtm->tm_year + 1900;
+	mm = localtm->tm_mon + 1;
+	dd = localtm->tm_mday;
+
+	if (bsddialog_init() == BSDDIALOG_ERROR) {
+		printf("Error: %s\n", bsddialog_geterror());
+		return (1);
+	}
+
+	bsddialog_initconf(&conf);
+	conf.title = "calendar";
+	output = bsddialog_calendar(&conf, "Example", 18, 40, &yy, &mm, &dd);
+
+	bsddialog_end();
+
+	switch (output) {
+	case BSDDIALOG_OK:
+		printf("Date: %u/%u/%u", yy, mm, dd);
+		break;
+	case BSDDIALOG_CANCEL:
+		printf("Cancel");
+		break;
+	case BSDDIALOG_ERROR:
+		printf("Error: %s", bsddialog_geterror());
+		break;
+	}
+	printf("\n");
+
+	return (output);
+}
\ No newline at end of file
diff --git a/examples_library/compile b/examples_library/compile
index 6f2c23b8ca75..4cb6d23bd6a6 100755
--- a/examples_library/compile
+++ b/examples_library/compile
@@ -10,7 +10,7 @@
 
 libpath=../lib
 examples="menu checklist radiolist mixedlist theme infobox yesno msgbox \
-	datebox form timebox rangebox pause"
+	datebox form timebox rangebox pause calendar"
 
 rm -f $examples
 
diff --git a/examples_library/form.c b/examples_library/form.c
index 56d8a8052a72..4780fb68d121 100644
--- a/examples_library/form.c
+++ b/examples_library/form.c
@@ -27,7 +27,7 @@ int main()
 	    {"Password:", 2, 0, "",          2, 10, 30, 50, NULL, H,  "desc 3"}
 	};
 
-	/* Optional, unless for unicode/multicolum charachters */
+	/* Optional, unless for unicode/multi-column characters */
 	setlocale(LC_ALL, "");
 
 	if (bsddialog_init() == BSDDIALOG_ERROR) {
@@ -56,4 +56,4 @@ int main()
 	}
 
 	return (output);
-}
\ No newline at end of file
+}
diff --git a/examples_utility/calendar.sh b/examples_utility/calendar.sh
new file mode 100644
index 000000000000..a7ce4f1bb1d5
--- /dev/null
+++ b/examples_utility/calendar.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+#-
+# SPDX-License-Identifier: CC0-1.0
+#
+# Written in 2022 by Alfonso Sabato Siciliano.
+#
+# To the extent possible under law, the author has dedicated all copyright
+# and related and neighboring rights to this software to the public domain
+# worldwide. This software is distributed without any warranty, see:
+#	<http://creativecommons.org/publicdomain/zero/1.0/>.
+
+: ${BSDDIALOG_ERROR=255}
+: ${BSDDIALOG_OK=0}
+: ${BSDDIALOG_CANCEL=1}
+: ${BSDDIALOG_ESC=5}
+
+DATE=$(./bsddialog --title " calendar " --date-format "%x" \
+	--calendar "Hello World!" 20 40 \
+3>&1 1>&2 2>&3 3>&-)
+
+case $? in
+	$BSDDIALOG_ERROR )
+		exit 1
+	;;
+	$BSDDIALOG_ESC )
+		echo "[ESC]"
+	;;
+	$BSDDIALOG_CANCEL )
+		echo "[Cancel]"
+	;;
+	$BSDDIALOG_OK )
+		echo "[OK] $DATE"
+	;;
+esac
diff --git a/examples_utility/timebox.sh b/examples_utility/timebox.sh
index 81d24d558dc9..233434b29195 100755
--- a/examples_utility/timebox.sh
+++ b/examples_utility/timebox.sh
@@ -14,8 +14,7 @@
 : ${BSDDIALOG_CANCEL=1}
 : ${BSDDIALOG_ESC=5}
 
-TIME=$(./bsddialog --title " timebox " \
-	--timebox "Tab / Left / Right to move\nUp / Down to select" 10 40 \
+TIME=$(./bsddialog --title " timebox " --timebox "Hello World!" 8 25 \
 3>&1 1>&2 2>&3 3>&-)
 
 case $? in
diff --git a/lib/GNUMakefile b/lib/GNUMakefile
index 1d55d6edd60d..3c31c78fdf88 100644
--- a/lib/GNUMakefile
+++ b/lib/GNUMakefile
@@ -3,15 +3,15 @@
 #
 # Written in 2021 by Alfonso Sabato Siciliano
 
-VERSION = 0.3
+VERSION = 0.4
 LIBRARY = bsddialog
 LIBRARY_SO = lib${LIBRARY:=.so}
 HEADERS = bsddialog.h bsddialog_theme.h bsddialog_progressview.h
-SOURCES = barbox.c formbox.c infobox.c libbsddialog.c lib_util.c menubox.c \
-	messagebox.c textbox.c theme.c timebox.c
+SOURCES = barbox.c calendarbox.c formbox.c infobox.c libbsddialog.c \
+	lib_util.c menubox.c messagebox.c textbox.c theme.c timebox.c
 OBJECTS = $(SOURCES:.c=.o)
-CFLAGS = -D_XOPEN_SOURCE_EXTENDED -D_XOPEN_SOURCE -D_GNU_SOURCE -Wall -Wextra -Wno-implicit-fallthrough \
-	-Werror -fpic
+CFLAGS = -D_XOPEN_SOURCE_EXTENDED -D_XOPEN_SOURCE -D_GNU_SOURCE -Wall -Wextra \
+	-Wno-implicit-fallthrough -Werror -fpic
 LDFLAGS = -lncursesw -ltinfo
 LIBFLAG = -shared
 
diff --git a/lib/Makefile b/lib/Makefile
index 5c535c5483f1..0f536fb38743 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -3,13 +3,13 @@
 #
 # Written in 2021 by Alfonso Sabato Siciliano
 
-VERSION = 0.3
+VERSION = 0.4
 LIBRARY = bsddialog
 LIBRARY_SO = lib${LIBRARY:=.so}
 LIBRARY_A = lib${LIBRARY:=.a}
 HEADERS = bsddialog.h bsddialog_theme.h bsddialog_progressview.h
-SOURCES = barbox.c formbox.c infobox.c libbsddialog.c lib_util.c menubox.c \
-	messagebox.c textbox.c theme.c timebox.c
+SOURCES = barbox.c calendarbox.c formbox.c infobox.c libbsddialog.c \
+	lib_util.c menubox.c messagebox.c textbox.c theme.c timebox.c
 OBJECTS = ${SOURCES:.c=.o}
 CFLAGS += -D_XOPEN_SOURCE_EXTENDED -fPIC -Wall -Wextra
 LDFLAGS += -fstack-protector-strong -shared -Wl,-x -Wl,--fatal-warnings \
diff --git a/lib/barbox.c b/lib/barbox.c
index b6bfe32fc0aa..71759839a709 100644
--- a/lib/barbox.c
+++ b/lib/barbox.c
@@ -327,7 +327,7 @@ do_mixedgauge(struct bsddialog_conf *conf, const char *text, int rows, int cols,
 
 	wrefresh(bar);
 
-	/* getch(); port ncurses shows nothing */
+	/* getch(); alternate mode (port devel/ncurses) shows nothing */
 
 	delwin(bar);
 	end_dialog(conf, shadow, widget, textpad);
diff --git a/lib/bsddialog.3 b/lib/bsddialog.3
index 12db1f039d59..9cc68a90ff62 100644
--- a/lib/bsddialog.3
+++ b/lib/bsddialog.3
@@ -22,11 +22,12 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd August 29, 2022
+.Dd September 23, 2022
 .Dt BSDDIALOG 3
 .Os
 .Sh NAME
 .Nm bsddialog_backtitle ,
+.Nm bsddialog_calendar ,
 .Nm bsddialog_clearterminal ,
 .Nm bsddialog_color ,
 .Nm bsddialog_color_attrs ,
@@ -62,6 +63,16 @@
 .Ft int
 .Fn bsddialog_backtitle "struct bsddialog_conf *conf" "const char *backtitle"
 .Ft int
+.Fo bsddialog_calendar
+.Fa "struct bsddialog_conf *conf"
+.Fa "const char *text"
+.Fa "int rows"
+.Fa "int cols"
+.Fa "unsigned int *yy"
+.Fa "unsigned int *mm"
+.Fa "unsigned int *dd"
+.Fc
+.Ft int
 .Fo bsddialog_checklist
 .Fa "struct bsddialog_conf *conf"
 .Fa "const char *text"
@@ -75,7 +86,7 @@
 .Ft int
 .Fn bsddialog_clearterminal "void"
 .Ft int
-.Fo bsddialog_datebox"
+.Fo bsddialog_datebox
 .Fa "struct bsddialog_conf *conf"
 .Fa "const char *text"
 .Fa "int rows"
@@ -476,7 +487,8 @@ function.
 buttons always active, avoidind focus switch between buttons and input fields or
 input boxes in
 .Fn bsddialog_form ,
-.Fn bsddialog_datebox
+.Fn bsddialog_datebox ,
+.Fn bsddialog_calendar
 and
 .Fn bsddialog_timebox .
 .It Fa conf.button.without_ok
@@ -515,7 +527,10 @@ to true,
 and
 .Fa conf.x
 to
-.Dv BSDDIALOG_CENTER .
+.Dv BSDDIALOG_CENTER ,
+.Fa conf.text.cols_per_row
+to
+.Dv 10 .
 .Pp
 .Fn bsddialog_infobox
 builds a dialog without buttons and returns instantly.
@@ -531,8 +546,10 @@ builds a dialog waiting until the timeout in
 .Fa seconds
 expires or a button is pressed.
 .Pp
+.Fn bsddialog_calendar
+and
 .Fn bsddialog_datebox
-builds a dialog to select a date,
+build a dialog to select a date,
 .Fa yy ,
 .Fa mm ,
 and
@@ -606,14 +623,14 @@ builds a dialog with collections of checklists, radiolists and separators.
 A collection is a set defined like:
 .Pp
 .Bd -literal -offset indent -compact
-enum bsddialog_grouptype {
+enum bsddialog_menutype {
 	BSDDIALOG_CHECKLIST,
 	BSDDIALOG_RADIOLIST,
 	BSDDIALOG_SEPARATOR,
 };
 
 struct bsddialog_menugroup {
-	enum bsddialog_grouptype type;
+	enum bsddialog_menutype type;
 	unsigned int nitems;
 	struct bsddialog_menuitem *items;
 };
@@ -1013,7 +1030,7 @@ struct bsddialog_menuitem check[2] = {
 struct bsddialog_menuitem sep[1] = {
     { "3", true, 0, "Radiolist", "(desc)", "" }
 };
-struct bsddialog_menuitem radio[5] = {
+struct bsddialog_menuitem radio[2] = {
     { "4", true,  0, "Name 1", "Desc 1", "Radio Bottom Desc 1" },
     { "5", false, 0, "Name 2", "Desc 2", "Radio Bottom Desc 2" }
 };
diff --git a/lib/bsddialog.h b/lib/bsddialog.h
index 6f13da3fa667..ce6aac6d4632 100644
--- a/lib/bsddialog.h
+++ b/lib/bsddialog.h
@@ -30,7 +30,7 @@
 
 #include <stdbool.h>
 
-#define LIBBSDDIALOG_VERSION     "0.3"
+#define LIBBSDDIALOG_VERSION     "0.4"
 
 /* Exit status */
 #define BSDDIALOG_ERROR          -1
@@ -136,14 +136,14 @@ struct bsddialog_menuitem {
 	const char *bottomdesc;
 };
 
-enum bsddialog_grouptype {
+enum bsddialog_menutype {
 	BSDDIALOG_CHECKLIST,
 	BSDDIALOG_RADIOLIST,
 	BSDDIALOG_SEPARATOR,
 };
 
 struct bsddialog_menugroup {
-	enum bsddialog_grouptype type;
+	enum bsddialog_menutype type;
 	unsigned int nitems;
 	struct bsddialog_menuitem *items;
 };
@@ -174,6 +174,10 @@ const char *bsddialog_geterror(void);
 
 /* Dialogs */
 int
+bsddialog_calendar(struct bsddialog_conf *conf, const char *text, int rows,
+    int cols, unsigned int *yy, unsigned int *mm, unsigned int *dd);
+
+int
 bsddialog_checklist(struct bsddialog_conf *conf, const char *text, int rows,
     int cols, unsigned int menurows, unsigned int nitems,
     struct bsddialog_menuitem *items, int *focusitem);
diff --git a/lib/calendarbox.c b/lib/calendarbox.c
new file mode 100644
index 000000000000..3b55b26a13b8
--- /dev/null
+++ b/lib/calendarbox.c
@@ -0,0 +1,520 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2022 Alfonso Sabato Siciliano
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+
+#include <curses.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "bsddialog.h"
+#include "bsddialog_theme.h"
+#include "lib_util.h"
+
+#define MINHCAL   13
+#define MINWCAL   36 /* 34 calendar, 1 + 1 margins */
+#define MINYEAR   1900
+#define MAXYEAR   999999999
+
+static int month_days(int yy, int mm)
+{
+	int days;
+
+	if (mm == 2)
+		days = ISLEAP(yy) ? 29 : 28;
+	else if (mm == 4 || mm == 6 || mm == 9 || mm == 11)
+		days = 30;
+	else
+		days = 31;
+
+	return (days);
+}
+
+enum operation {
+	UP_DAY,
+	DOWN_DAY,
+	LEFT_DAY,
+	RIGHT_DAY,
+	UP_MONTH,
+	DOWN_MONTH,
+	UP_YEAR,
+	DOWN_YEAR
+};
+
+static void datectl(enum operation op, int *yy, int *mm, int *dd)
+{
+	int ndays;
+
+	ndays = month_days(*yy, *mm);
+
+	switch (op) {
+	case UP_DAY:
+		if (*dd > 7)
+			*dd -= 7;
+		else {
+			if (*mm == 1) {
+				*yy -= 1;
+				*mm = 12;
+			} else
+				*mm -= 1;
+			ndays = month_days(*yy, *mm);
+			*dd = ndays - abs(7 - *dd);
+		}
+		break;
+	case DOWN_DAY:
+		if (*dd + 7 < ndays)
+			*dd += 7;
+		else {
+			if (*mm == 12) {
+				*yy += 1;
+				*mm = 1;
+			} else
+				*mm += 1;
+			*dd = *dd + 7 - ndays;
+		}
+		break;
+	case LEFT_DAY:
+		if (*dd > 1)
+			*dd -= 1;
+		else {
+			if (*mm == 1) {
+				*yy -= 1;
+				*mm = 12;
+			} else
+				*mm -= 1;
+			*dd = month_days(*yy, *mm);
+		}
+		break;
+	case RIGHT_DAY:
+		if (*dd < ndays)
+			*dd += 1;
+		else {
+			if (*mm == 12) {
+				*yy += 1;
+				*mm = 1;
+			} else
+				*mm += 1;
+			*dd = 1;
+		}
+		break;
+	case UP_MONTH:
+		if (*mm == 1) {
+			*mm = 12;
+			*yy -= 1;
+		} else
+			*mm -= 1;
+		ndays = month_days(*yy, *mm);
+		if (*dd > ndays)
+			*dd = ndays;
+		break;
+	case DOWN_MONTH:
+		if (*mm == 12) {
+			*mm = 1;
+			*yy += 1;
+		} else
+			*mm += 1;
+		ndays = month_days(*yy, *mm);
+		if (*dd > ndays)
+			*dd = ndays;
+		break;
+	case UP_YEAR:
+		*yy -= 1;
+		ndays = month_days(*yy, *mm);
+		if (*dd > ndays)
+			*dd = ndays;
+		break;
+	case DOWN_YEAR:
+		*yy += 1;
+		ndays = month_days(*yy, *mm);
+		if (*dd > ndays)
+			*dd = ndays;
+		break;
+	}
+
+	if (*yy < MINYEAR) {
+		*yy = MINYEAR;
+		*mm = 1;
+		*dd = 1;
+	}
+	if (*yy > MAXYEAR) {
+		*yy = MAXYEAR;
+		*mm = 12;
+		*dd = 31;
+	}
+}
+
+static int week_day(int yy, int mm, int dd)
+{
+	int wd;
+
+	dd += mm < 3 ? yy-- : yy - 2;
+	wd = 23*mm/9 + dd + 4 + yy/4 - yy/100 + yy/400;
+	wd %= 7;
+
+	return (wd);
+}
+
+static void
+print_calendar(struct bsddialog_conf *conf, WINDOW *win, int yy, int mm, int dd,
+    bool active)
+{
+	int ndays, i, y, x, wd, h, w;
+
+	getmaxyx(win, h, w);
+	wclear(win);
+	draw_borders(conf, win, h, w, RAISED);
+	if (active) {
+		wattron(win, t.dialog.arrowcolor);
+		mvwhline(win, 0, 15, conf->ascii_lines ? '^' : ACS_UARROW, 4);
+		mvwhline(win, h-1, 15, conf->ascii_lines ? 'v' : ACS_DARROW, 4);
+		mvwvline(win, 3, 0, conf->ascii_lines ? '<' : ACS_LARROW, 3);
+		mvwvline(win, 3, w-1, conf->ascii_lines ? '>' : ACS_RARROW, 3);
+		wattroff(win, t.dialog.arrowcolor);
+	}
+
+	mvwaddstr(win, 1, 5, "Sun Mon Tue Wed Thu Fri Sat");
+	ndays = month_days(yy, mm);
+	y = 2;
+	wd = week_day(yy, mm, 1);
+	for (i = 1; i <= ndays; i++) {
+		x = 5 + (4 * wd); /* x has to be 6 with week number */
+		wmove(win, y, x);
+		mvwprintw(win, y, x, "%2d", i);
+		if (i == dd) {
+			wattron(win, t.menu.f_namecolor);
+			mvwprintw(win, y, x, "%2d", i);
+			wattroff(win, t.menu.f_namecolor);
+		}
+		wd++;
+		if (wd > 6) {
+			wd = 0;
+			y++;
+		}
+	}
+
+	wrefresh(win);
+}
+
+static void
+drawsquare(struct bsddialog_conf *conf, WINDOW *win, const char *fmt,
+    const void *value, bool focus)
+{
+	int h, w;
+
+	getmaxyx(win, h, w);
+	draw_borders(conf, win, h, w, RAISED);
+	if (focus) {
+		wattron(win, t.dialog.arrowcolor);
+		mvwhline(win, 0, 7, conf->ascii_lines ? '^' : ACS_UARROW, 3);
+		mvwhline(win, 2, 7, conf->ascii_lines ? 'v' : ACS_DARROW, 3);
+		wattroff(win, t.dialog.arrowcolor);
+	}
+
+	if (focus)
+		wattron(win, t.menu.f_namecolor);
+	if (strchr(fmt, 's') != NULL)
+		mvwprintw(win, 1, 1, fmt, (const char*)value);
+	else
+		mvwprintw(win, 1, 1, fmt, *((const int*)value));
+	if (focus)
+		wattroff(win, t.menu.f_namecolor);
+
+	wrefresh(win);
+}
+
+static int
+calendar_autosize(struct bsddialog_conf *conf, int rows, int cols, int *h,
+    int *w, const char *text, struct buttons bs)
+{
+	int htext, wtext;
+
+	if (cols == BSDDIALOG_AUTOSIZE || rows == BSDDIALOG_AUTOSIZE) {
+		if (text_size(conf, rows, cols, text, &bs, MINHCAL, MINWCAL,
+		    &htext, &wtext) != 0)
+			return (BSDDIALOG_ERROR);
+	}
+
+	if (cols == BSDDIALOG_AUTOSIZE)
+		*w = widget_min_width(conf, wtext, MINWCAL, &bs);
+
+	if (rows == BSDDIALOG_AUTOSIZE)
+		*h = widget_min_height(conf, htext, MINHCAL, true);
+
+	return (0);
+}
+
+static int calendar_checksize(int rows, int cols, struct buttons bs)
+{
+	int mincols;
+
+	mincols = MAX(MINWCAL, buttons_min_width(bs));
+	mincols += VBORDERS;
+
+	if (cols < mincols)
+		RETURN_ERROR("Few cols for this calendar (at least 38)");
+
+	if (rows < MINHCAL + 2 + 2) /* 2 buttons + 2 borders */
+		RETURN_ERROR("Few rows for calendar (at least 17)");
+
+	return (0);
+}
+
+int
+bsddialog_calendar(struct bsddialog_conf *conf, const char *text, int rows,
+    int cols, unsigned int *yy, unsigned int *mm, unsigned int *dd)
+{
+	bool loop, focusbuttons;
+	int retval, y, x, h, w, sel, ycal, xcal, year, month, day;
+	wint_t input;
+	WINDOW *widget, *textpad, *shadow, *yearwin, *monthwin, *daywin;
+	struct buttons bs;
+	const char *m[12] = {
+		"January", "February", "March", "April", "May", "June", "July",
+		"August", "September", "October", "November", "December"
+	};
+
+	if (yy == NULL || mm == NULL || dd == NULL)
+		RETURN_ERROR("yy / mm / dd cannot be NULL");
+
+	year = *yy > MAXYEAR ? MAXYEAR : *yy;
+	if (year < MINYEAR)
+		year = MINYEAR;
+	month = *mm > 12 ? 12 : *mm;
+	if (month == 0)
+		month = 1;
+	day = *dd == 0 ? 1 : *dd;
+	if(day > month_days(year, month))
+		day = month_days(year, month);
+
+	get_buttons(conf, &bs, BUTTON_OK_LABEL, BUTTON_CANCEL_LABEL);
+
+	if (set_widget_size(conf, rows, cols, &h, &w) != 0)
+		return (BSDDIALOG_ERROR);
+	if (calendar_autosize(conf, rows, cols, &h, &w, text, bs) != 0)
+		return (BSDDIALOG_ERROR);
+	if (calendar_checksize(h, w, bs) != 0)
+		return (BSDDIALOG_ERROR);
+	if (set_widget_position(conf, &y, &x, h, w) != 0)
+		return (BSDDIALOG_ERROR);
+
+	if (new_dialog(conf, &shadow, &widget, y, x, h, w, &textpad, text, &bs,
+	    true) != 0)
+		return (BSDDIALOG_ERROR);
+
+	pnoutrefresh(textpad, 0, 0, y+1, x+2, y+h-17, x+w-2);
+	doupdate();
+
+	ycal = y + h - 15;
+	xcal = x + w/2 - 17;
+	mvwaddstr(widget, h - 16, w/2 - 17, "Month");
+	monthwin = new_boxed_window(conf, ycal, xcal, 3, 17, RAISED);
+	mvwaddstr(widget, h - 16, w/2, "Year");
+	yearwin = new_boxed_window(conf, ycal, xcal + 17, 3, 17, RAISED);
+	daywin = new_boxed_window(conf, ycal + 3, xcal, 9, 34, RAISED);
+
+	wrefresh(widget);
+
+	sel = -1;
+	loop = focusbuttons = true;
+	while (loop) {
+		drawsquare(conf, monthwin, "%15s", m[month - 1], sel == 0);
+		drawsquare(conf, yearwin, "%15d", &year, sel == 1);
+		print_calendar(conf, daywin, year, month, day, sel == 2);
+
+		if (get_wch(&input) == ERR)
+			continue;
+		switch(input) {
+		case KEY_ENTER:
+		case 10: /* Enter */
+			if (focusbuttons || conf->button.always_active) {
+				retval = bs.value[bs.curr];
+				loop = false;
+			}
+			break;
+		case 27: /* Esc */
+			if (conf->key.enable_esc) {
+				retval = BSDDIALOG_ESC;
+				loop = false;
+			}
+			break;
+		case '\t': /* TAB */
+			if (focusbuttons) {
+				bs.curr++;
+				if (bs.curr >= (int)bs.nbuttons) {
+					focusbuttons = false;
+					sel = 0;
+					bs.curr = conf->button.always_active ?
+					    0 : -1;
+				}
+			} else {
+				sel++;
+				if (sel > 2) {
+					focusbuttons = true;
+					sel = -1;
+					bs.curr = 0;
+				}
+			}
+			draw_buttons(widget, bs, true);
+			wrefresh(widget);
+			break;
+		case KEY_RIGHT:
+			if (focusbuttons) {
+				bs.curr++;
+				if (bs.curr >= (int)bs.nbuttons) {
+					focusbuttons = false;
+					sel = 0;
+					bs.curr = conf->button.always_active ?
+					    0 : -1;
+				}
+			} else if (sel == 2) {
+				datectl(RIGHT_DAY, &year, &month, &day);
+			} else { /* Month or Year*/
+				sel++;
+			}
+			draw_buttons(widget, bs, true);
+			wrefresh(widget);
+			break;
+		case KEY_LEFT:
+			if (focusbuttons) {
+				bs.curr--;
+				if (bs.curr < 0) {
+					focusbuttons = false;
+					sel = 2;
+					bs.curr = conf->button.always_active ?
+					    0 : -1;
+				}
+			} else if (sel == 2) {
+				datectl(LEFT_DAY, &year, &month, &day);
+			} else if (sel == 1) {
+				sel = 0;
+			} else { /* sel = 0, Month */
+				focusbuttons = true;
+				sel = -1;
+				bs.curr = 0;
+			}
+			draw_buttons(widget, bs, true);
+			wrefresh(widget);
+			break;
+		case KEY_UP:
+			if (focusbuttons) {
+				sel = 2;
+				focusbuttons = false;
+				bs.curr = conf->button.always_active ? 0 : -1;
+				draw_buttons(widget, bs, true);
+				wrefresh(widget);
+			} else if (sel == 0) {
+				datectl(UP_MONTH, &year, &month, &day);
+			} else if (sel == 1) {
+				datectl(UP_YEAR, &year, &month, &day);
+			} else { /* sel = 2 */
+				datectl(UP_DAY, &year, &month, &day);
+			}
+			break;
+		case KEY_DOWN:
+			if (focusbuttons) {
+				break;
+			} else if (sel == 0) {
+				datectl(DOWN_MONTH, &year, &month, &day);
+			} else if (sel == 1) {
+				datectl(DOWN_YEAR, &year, &month, &day);
+			} else { /* sel = 2 */
+				datectl(DOWN_DAY, &year, &month, &day);
+			}
+			break;
+		case KEY_HOME:
+			datectl(UP_MONTH, &year, &month, &day);
+			break;
+		case KEY_END:
+			datectl(DOWN_MONTH, &year, &month, &day);
+			break;
+		case KEY_PPAGE:
+			datectl(UP_YEAR, &year, &month, &day);
+			break;
+		case KEY_NPAGE:
+			datectl(DOWN_YEAR, &year, &month, &day);
+			break;
+		case KEY_F(1):
+			if (conf->key.f1_file == NULL &&
+			    conf->key.f1_message == NULL)
+				break;
+			if (f1help(conf) != 0)
+				return (BSDDIALOG_ERROR);
+			/* No break, screen size can change */
+		case KEY_RESIZE:
+			/* Important for decreasing screen */
+			hide_widget(y, x, h, w, conf->shadow);
+			refresh();
+
+			if (set_widget_size(conf, rows, cols, &h, &w) != 0)
+				return (BSDDIALOG_ERROR);
+			if (calendar_autosize(conf, rows, cols, &h, &w, text,
+			    bs) != 0)
+				return (BSDDIALOG_ERROR);
+			if (calendar_checksize(h, w, bs) != 0)
+				return (BSDDIALOG_ERROR);
+			if (set_widget_position(conf, &y, &x, h, w) != 0)
+				return (BSDDIALOG_ERROR);
+
+			if (update_dialog(conf, shadow, widget, y, x, h, w,
+			    textpad, text, &bs, true) != 0)
+				return (BSDDIALOG_ERROR);
+			pnoutrefresh(textpad, 0, 0, y+1, x+2, y+h-17, x+w-2);
+			doupdate();
+
+			ycal = y + h - 15;
+			xcal = x + w/2 - 17;
+			mvwaddstr(widget, h - 16, w/2 - 17, "Month");
+			mvwin(monthwin, ycal, xcal);
+			mvwaddstr(widget, h - 16, w/2, "Year");
+			mvwin(yearwin, ycal, xcal + 17);
+			mvwin(daywin, ycal + 3, xcal);
+			wrefresh(widget);
+
+			/* Important to avoid grey lines expanding screen */
+			refresh();
+			break;
+		default:
+			if (shortcut_buttons(input, &bs)) {
+				retval = bs.value[bs.curr];
+				loop = false;
+			}
+		}
+	}
+
+	if (retval == BSDDIALOG_OK) {
+		*yy = year;
+		*mm = month;
+		*dd = day;
+	}
+
+	delwin(yearwin);
+	delwin(monthwin);
+	delwin(daywin);
+	end_dialog(conf, shadow, widget, textpad);
+
+	return (retval);
+}
\ No newline at end of file
diff --git a/lib/formbox.c b/lib/formbox.c
index cd29919417be..5b1d2ab61de2 100644
--- a/lib/formbox.c
+++ b/lib/formbox.c
@@ -424,34 +424,25 @@ menu_autosize(struct bsddialog_conf *conf, int rows, int cols, int *h, int *w,
 	} else
 		notext += *menurows;
 
-	/* cols autosize, rows autosize, rows fullscreen, menu particularity */
-	if (cols == BSDDIALOG_AUTOSIZE || rows <= BSDDIALOG_AUTOSIZE) {
-		if (text_size(conf, rows, cols, text, &bs, notext, linelen + 4,
-		    &htext, &wtext) != 0)
-			return (BSDDIALOG_ERROR);
-	}
+	if (text_size(conf, rows, cols, text, &bs, notext, linelen + 4, &htext,
+	    &wtext) != 0)
+		return (BSDDIALOG_ERROR);
 
 	if (cols == BSDDIALOG_AUTOSIZE)
 		*w = widget_min_width(conf, wtext, linelen + 4, &bs);
 
 	if (rows == BSDDIALOG_AUTOSIZE) {
-		if (*menurows == 0) {
+		if (*menurows == BSDDIALOG_AUTOSIZE) {
 			menusize = widget_max_height(conf) - HBORDERS -
 			     2 /*buttons*/ - htext;
 			menusize = MIN(menusize, nitems + 2);
 			*menurows = menusize - 2 < 0 ? 0 : menusize - 2;
-		}
-		else /* h autosize with fixed menurows */
+		} else /* h autosize with fixed menurows */
 			menusize = *menurows + 2;
 
 		*h = widget_min_height(conf, htext, menusize, true);
-		/*
-		 * avoid menurows overflow and
-		 * with rows=AUTOSIZE menurows!=0 becomes max-menurows
-		 */
-		*menurows = MIN(*h - 6 - htext, (int)*menurows);
-	} else {
-		if (*menurows == 0) {
+	} else { /* fixed rows */
+		if (*menurows == BSDDIALOG_AUTOSIZE) {
 			if (*h - 6 - htext <= 0)
 				*menurows = 0; /* form_checksize() will check */
 			else
@@ -459,6 +450,12 @@ menu_autosize(struct bsddialog_conf *conf, int rows, int cols, int *h, int *w,
 		}
 	}
 
+	/* avoid menurows overflow and menurows becomes at most menurows */
+	if (*h - 6 - htext <= 0)
+		*menurows = 0; /* form_checksize() will check */
+	else
+		*menurows = MIN(*h - 6 - htext, (int)*menurows);
+
 	return (0);
 }
 
diff --git a/lib/lib_util.c b/lib/lib_util.c
index fcdf4c3d8769..d8c0f1d21b42 100644
--- a/lib/lib_util.c
+++ b/lib/lib_util.c
@@ -921,11 +921,8 @@ set_widget_size(struct bsddialog_conf *conf, int rows, int cols, int *h, int *w)
 		*h = maxheight;
 	else if (rows < BSDDIALOG_FULLSCREEN)
 		RETURN_ERROR("Negative (less than -1) height");
-	else if (rows > BSDDIALOG_AUTOSIZE) {
-		if ((*h = rows) > maxheight)
-			RETURN_ERROR("Height too big (> terminal height - "
-			    "shadow)");
-	}
+	else if (rows > BSDDIALOG_AUTOSIZE) /* fixed rows */
+		*h = MIN(rows, maxheight); /* rows is at most maxheight */
 	/* rows == AUTOSIZE: each widget has to set its size */
 
 	if ((maxwidth = widget_max_width(conf)) == BSDDIALOG_ERROR)
@@ -935,11 +932,8 @@ set_widget_size(struct bsddialog_conf *conf, int rows, int cols, int *h, int *w)
 		*w = maxwidth;
 	else if (cols < BSDDIALOG_FULLSCREEN)
 		RETURN_ERROR("Negative (less than -1) width");
-	else if (cols > BSDDIALOG_AUTOSIZE) {
-		if ((*w = cols) > maxwidth)
-			RETURN_ERROR("Width too big (> terminal width - "
-			    "shadow)");
-	}
+	else if (cols > BSDDIALOG_AUTOSIZE) /* fixed cols */
+		*w = MIN(cols, maxwidth); /* cols is at most maxwidth */
 	/* cols == AUTOSIZE: each widget has to set its size */
 
 	return (0);
diff --git a/lib/lib_util.h b/lib/lib_util.h
index 238d3fda4675..17ea0e0d1368 100644
--- a/lib/lib_util.h
+++ b/lib/lib_util.h
@@ -43,6 +43,9 @@ extern bool hastermcolors;
 	refresh();				\
 } while (0)
 
+/* date */
+#define ISLEAP(year) ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0)
+
 /* unicode */
 unsigned int strcols(const char *mbstring);
 int str_props(const char *mbstring, unsigned int *cols, bool *has_multi_col);
diff --git a/lib/libbsddialog.c b/lib/libbsddialog.c
index 1a8188b0e7d3..73c1f5c2dd57 100644
--- a/lib/libbsddialog.c
+++ b/lib/libbsddialog.c
@@ -99,7 +99,9 @@ int bsddialog_end(void)
 
 int bsddialog_backtitle(struct bsddialog_conf *conf, const char *backtitle)
 {
-	mvaddstr(0, 1, backtitle);
+	move(0, 1);
+	clrtoeol();
+	addstr(backtitle);
 	if (conf->no_lines != true)
 		mvhline(1, 1, conf->ascii_lines ? '-' : ACS_HLINE,
 		    SCREENCOLS - 2);
diff --git a/lib/menubox.c b/lib/menubox.c
index 28b9c8a0923b..bd06a9e37df2 100644
--- a/lib/menubox.c
+++ b/lib/menubox.c
@@ -36,7 +36,6 @@
 #include "bsddialog_theme.h"
 #include "lib_util.h"
 
-#define DEPTH       2
 #define MIN_HEIGHT  VBORDERS + 6 /* 2 buttons 1 text 3 menu */
 
 enum menumode {
@@ -277,7 +276,7 @@ drawitem(struct bsddialog_conf *conf, WINDOW *pad, int y,
 	colorname = focus ? t.menu.f_namecolor : t.menu.namecolor;
 	if (conf->menu.no_name == false) {
 		wattron(pad, colorname);
-		mvwaddstr(pad, y, pos.xname + item->depth * DEPTH, item->name);
+		mvwaddstr(pad, y, pos.xname + item->depth, item->name);
 		wattroff(pad, colorname);
 	}
 
@@ -290,8 +289,7 @@ drawitem(struct bsddialog_conf *conf, WINDOW *pad, int y,
 	if (conf->menu.no_desc == false) {
 		wattron(pad, colordesc);
 		if (conf->menu.no_name)
-			mvwaddstr(pad, y, pos.xname + item->depth * DEPTH,
-			    item->desc);
+			mvwaddstr(pad, y, pos.xname + item->depth, item->desc);
 		else
 			mvwaddstr(pad, y, pos.xdesc, item->desc);
 		wattroff(pad, colordesc);
@@ -307,7 +305,7 @@ drawitem(struct bsddialog_conf *conf, WINDOW *pad, int y,
 			mbtowc(&shortcut, item->desc, MB_CUR_MAX);
 		else
 			mbtowc(&shortcut, item->name, MB_CUR_MAX);
-		mvwaddwch(pad, y, pos.xname + item->depth * DEPTH, shortcut);
+		mvwaddwch(pad, y, pos.xname + item->depth, shortcut);
 		wattroff(pad, colorshortcut);
 	}
 
@@ -362,34 +360,25 @@ menu_autosize(struct bsddialog_conf *conf, int rows, int cols, int *h, int *w,
 	} else
 		notext += *menurows;
 
-	/* cols autosize, rows autosize, rows fullscreen, menu particularity */
-	if (cols == BSDDIALOG_AUTOSIZE || rows <= BSDDIALOG_AUTOSIZE) {
-		if (text_size(conf, rows, cols, text, &bs, notext, linelen + 4,
-		    &htext, &wtext) != 0)
-			return (BSDDIALOG_ERROR);
-	}
+	if (text_size(conf, rows, cols, text, &bs, notext, linelen + 4, &htext,
+	    &wtext) != 0)
+		return (BSDDIALOG_ERROR);
 
 	if (cols == BSDDIALOG_AUTOSIZE)
 		*w = widget_min_width(conf, wtext, linelen + 4, &bs);
 
 	if (rows == BSDDIALOG_AUTOSIZE) {
-		if (*menurows == 0) {
+		if (*menurows == BSDDIALOG_AUTOSIZE) {
 			menusize = widget_max_height(conf) - HBORDERS -
 			     2 /*buttons*/ - htext;
 			menusize = MIN(menusize, nitems + 2);
 			*menurows = menusize - 2 < 0 ? 0 : menusize - 2;
-		}
-		else /* h autosize with fixed menurows */
+		} else /* h autosize with fixed menurows */
 			menusize = *menurows + 2;
 
 		*h = widget_min_height(conf, htext, menusize, true);
-		/*
-		 * avoid menurows overflow and
-		 * with rows=AUTOSIZE menurows!=0 becomes max-menurows
-		 */
-		*menurows = MIN(*h - 6 - htext, (int)*menurows);
-	} else {
-		if (*menurows == 0) {
+	} else { /* fixed rows */
+		if (*menurows == BSDDIALOG_AUTOSIZE) {
 			if (*h - 6 - htext <= 0)
 				*menurows = 0; /* menu_checksize() will check */
 			else
@@ -397,6 +386,12 @@ menu_autosize(struct bsddialog_conf *conf, int rows, int cols, int *h, int *w,
 		}
 	}
 
+	/* avoid menurows overflow and menurows becomes at most menurows */
+	if (*h - 6 - htext <= 0)
+		*menurows = 0; /* menu_checksize() will check */
+	else
+		*menurows = MIN(*h - 6 - htext, (int)*menurows);
+
 	return (0);
 }
 
@@ -475,7 +470,6 @@ do_mixedlist(struct bsddialog_conf *conf, const char *text, int rows, int cols,
 	}
 	pos.maxname = conf->menu.no_name ? 0 : pos.maxname;
 	pos.maxdesc = conf->menu.no_desc ? 0 : pos.maxdesc;
-	pos.maxdepth = DEPTH * pos.maxdepth;
 
 	pos.xselector = pos.maxprefix + (pos.maxprefix != 0 ? 1 : 0);
 	pos.xname = pos.xselector + pos.selectorlen +
@@ -696,11 +690,15 @@ do_mixedlist(struct bsddialog_conf *conf, const char *text, int rows, int cols,
 			movefocus = next != abs;
 			break;
 		case ' ': /* Space */
-			if (pritems[abs].type == MENUMODE)
-				break;
-			else if (pritems[abs].type == CHECKLISTMODE)
+			if (pritems[abs].type == MENUMODE) {
+				retval = bs.value[bs.curr];
+				pritems[abs].on = true;
+				set_on_output(conf, retval, ngroups, groups,
+				    pritems);
+				loop = false;
+			} else if (pritems[abs].type == CHECKLISTMODE) {
 				pritems[abs].on = !pritems[abs].on;
-			else { /* RADIOLISTMODE */
+			} else { /* RADIOLISTMODE */
 				for (i = abs - pritems[abs].index;
 				    i < totnitems &&
 				    pritems[i].group == pritems[abs].group;
diff --git a/lib/messagebox.c b/lib/messagebox.c
index 06753be20c3d..7063ea9d273e 100644
--- a/lib/messagebox.c
+++ b/lib/messagebox.c
@@ -103,7 +103,7 @@ do_message(struct bsddialog_conf *conf, const char *text, int rows, int cols,
     struct buttons bs)
 {
 	bool hastext, loop;
-	int y, x, h, w, retval, ytextpad, htextpad, unused;
+	int y, x, h, w, retval, ytextpad, htextpad, printrows, unused;
 	WINDOW *widget, *textpad, *shadow;
 	wint_t input;
 
@@ -120,12 +120,13 @@ do_message(struct bsddialog_conf *conf, const char *text, int rows, int cols,
 	    true) != 0)
 		return (BSDDIALOG_ERROR);
 
+	printrows = h - 4;
 	ytextpad = 0;
 	getmaxyx(textpad, htextpad, unused);
 	unused++; /* fix unused error */
-	textupdate(widget, textpad, htextpad, ytextpad, hastext);
 	loop = true;
 	while (loop) {
+		textupdate(widget, textpad, htextpad, ytextpad, hastext);
 		doupdate();
 		if (get_wch(&input) == ERR)
 			continue;
@@ -160,6 +161,30 @@ do_message(struct bsddialog_conf *conf, const char *text, int rows, int cols,
 				wnoutrefresh(widget);
 			}
 			break;
+		case KEY_UP:
+			if (ytextpad > 0)
+				ytextpad--;
+			break;
+		case KEY_DOWN:
+			if (ytextpad + printrows < htextpad)
+				ytextpad++;
+			break;
+		case KEY_HOME:
+			ytextpad = 0;
+			break;
+		case KEY_END:
+			ytextpad = htextpad - printrows;
+			ytextpad = ytextpad < 0 ? 0 : ytextpad;
+			break;
+		case KEY_PPAGE:
+			ytextpad -= printrows;
+			ytextpad = ytextpad < 0 ? 0 : ytextpad;
+			break;
+		case KEY_NPAGE:
+			ytextpad += printrows;
+			if (ytextpad + printrows > htextpad)
+				ytextpad = htextpad - printrows;
+			break;
 		case KEY_F(1):
 			if (conf->key.f1_file == NULL &&
 			    conf->key.f1_message == NULL)
@@ -186,6 +211,7 @@ do_message(struct bsddialog_conf *conf, const char *text, int rows, int cols,
 			    textpad, text, &bs, true) != 0)
 				return (BSDDIALOG_ERROR);
 
+			printrows = h - 4;
 			getmaxyx(textpad, htextpad, unused);
 			ytextpad = 0;
 			textupdate(widget, textpad, htextpad, ytextpad, hastext);
@@ -193,18 +219,6 @@ do_message(struct bsddialog_conf *conf, const char *text, int rows, int cols,
 			/* Important to fix grey lines expanding screen */
 			refresh();
 			break;
-		case KEY_UP:
-			if (ytextpad == 0)
-				break;
-			ytextpad--;
-			textupdate(widget, textpad, htextpad, ytextpad, hastext);
-			break;
-		case KEY_DOWN:
-			if (ytextpad + h - 4 >= htextpad)
-				break;
-			ytextpad++;
-			textupdate(widget, textpad, htextpad, ytextpad, hastext);
-			break;
 		default:
 			if (shortcut_buttons(input, &bs)) {
 				retval = bs.value[bs.curr];
diff --git a/lib/theme.c b/lib/theme.c
index 40310d58cda4..6e53eb356825 100644
--- a/lib/theme.c
+++ b/lib/theme.c
@@ -258,7 +258,6 @@ int bsddialog_set_theme(struct bsddialog_theme *theme)
 
 int bsddialog_set_default_theme(enum bsddialog_default_theme newtheme)
 {
-
 	if (newtheme == BSDDIALOG_THEME_FLAT) {
 		bsddialog_set_theme(&dialogtheme);
 		t.dialog.lineraisecolor = t.dialog.linelowercolor;
diff --git a/lib/timebox.c b/lib/timebox.c
index 529563b49bca..53989bb97157 100644
--- a/lib/timebox.c
+++ b/lib/timebox.c
@@ -39,7 +39,7 @@
 #define MINWTIME   14 /* 3 windows and their borders */
 
 static void
-drawquare(struct bsddialog_conf *conf, WINDOW *win, const char *fmt,
+drawsquare(struct bsddialog_conf *conf, WINDOW *win, const char *fmt,
     const void *value, bool focus)
 {
 	int h, l, w;
@@ -167,7 +167,7 @@ bsddialog_timebox(struct bsddialog_conf *conf, const char* text, int rows,
 	loop = focusbuttons = true;
 	while (loop) {
 		for (i = 0; i < 3; i++)
-			drawquare(conf, c[i].win, "%02d", &c[i].value,
+			drawsquare(conf, c[i].win, "%02d", &c[i].value,
 			    sel == i);
 
 		if (get_wch(&input) == ERR)
@@ -341,8 +341,6 @@ bsddialog_datebox(struct bsddialog_conf *conf, const char *text, int rows,
 		{ "October", 31 }, { "November", 30 }, { "December",  31 }
 	};
 
-#define ISLEAF(year) ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0)
-
 	for (i = 0 ; i < 3; i++) {
 		if (c[i].value > c[i].max)
 			c[i].value = c[i].max;
@@ -350,7 +348,7 @@ bsddialog_datebox(struct bsddialog_conf *conf, const char *text, int rows,
 			c[i].value = 1;
 	}
 	c[2].max = m[c[1].value -1].days;
-	if (c[1].value == 2 && ISLEAF(c[0].value))
+	if (c[1].value == 2 && ISLEAP(c[0].value))
 		c[2].max = 29;
 	if (c[2].value > c[2].max)
 		c[2].value = c[2].max;
@@ -385,10 +383,10 @@ bsddialog_datebox(struct bsddialog_conf *conf, const char *text, int rows,
 	sel = -1;
 	loop = focusbuttons = true;
 	while (loop) {
-		drawquare(conf, c[0].win, "%4d", &c[0].value, sel == 0);
-		drawquare(conf, c[1].win, "%9s", m[c[1].value-1].name,
+		drawsquare(conf, c[0].win, "%4d", &c[0].value, sel == 0);
+		drawsquare(conf, c[1].win, "%9s", m[c[1].value-1].name,
 		    sel == 1);
-		drawquare(conf, c[2].win, "%02d", &c[2].value, sel == 2);
+		drawsquare(conf, c[2].win, "%02d", &c[2].value, sel == 2);
 
 		if (get_wch(&input) == ERR)
 			continue;
@@ -456,7 +454,7 @@ bsddialog_datebox(struct bsddialog_conf *conf, const char *text, int rows,
 				/* if mount change */
 				c[2].max = m[c[1].value -1].days;
 				/* if year change */
-				if (c[1].value == 2 && ISLEAF(c[0].value))
+				if (c[1].value == 2 && ISLEAP(c[0].value))
 					c[2].max = 29;
 				/* set new day */
 				if (c[2].value > c[2].max)
@@ -471,7 +469,7 @@ bsddialog_datebox(struct bsddialog_conf *conf, const char *text, int rows,
 			/* if mount change */
 			c[2].max = m[c[1].value -1].days;
 			/* if year change */
-			if (c[1].value == 2 && ISLEAF(c[0].value))
+			if (c[1].value == 2 && ISLEAP(c[0].value))
 				c[2].max = 29;
 			/* set new day */
 			if (c[2].value > c[2].max)
@@ -539,4 +537,4 @@ bsddialog_datebox(struct bsddialog_conf *conf, const char *text, int rows,
 	end_dialog(conf, shadow, widget, textpad);
 
 	return (retval);
-}
+}
\ No newline at end of file
diff --git a/util_theme.c b/util_theme.c
index e003e2c3d05f..caf62852e9f3 100644
--- a/util_theme.c
+++ b/util_theme.c
@@ -100,7 +100,7 @@ static struct property p[NPROPERTY] = {
 	{ "theme.button.f_shortcutcolor", COLOR, &t.button.f_shortcutcolor}
 };
 
-static char *color[8] = {
+static const char *color[8] = {
 	"black",
 	"red",
 	"green",
@@ -111,7 +111,15 @@ static char *color[8] = {
 	"white"
 };
 
-int savetheme(const char *file, char *errbuf, const char *version)
+#define EXIT_FMTERROR(fmt, ...) do {                                           \
+	bsddialog_end();                                                       \
+	printf("Error: ");                                                     \
+	printf(fmt, __VA_ARGS__);                                              \
+	printf(".\n");                                                         \
+	exit (255);                                                            \
+} while (0)
+
+void savetheme(const char *file, const char *version)
 {
 	int i;
 	unsigned int flags;
@@ -119,20 +127,14 @@ int savetheme(const char *file, char *errbuf, const char *version)
 	time_t clock;
 	FILE *fp;
 
-	if (bsddialog_get_theme(&t) != BSDDIALOG_OK) {
-		sprintf(errbuf, "Cannot save theme: %s", bsddialog_geterror());
-		return (BSDDIALOG_ERROR);
-	}
+	if (bsddialog_get_theme(&t) != BSDDIALOG_OK)
+		EXIT_FMTERROR("cannot save theme: %s", bsddialog_geterror());
 
-	if(time(&clock) < 0) {
-		sprintf(errbuf, "Cannot save profile (getting current time)");
-		return (BSDDIALOG_ERROR);
-	}
+	if(time(&clock) < 0)
+		EXIT_FMTERROR("%s", "cannot save profile getting current time");
 
-	if ((fp = fopen(file, "w")) == NULL) {
-		sprintf(errbuf, "Cannot open %s to save profile", file);
-		return (BSDDIALOG_ERROR);
-	}
+	if ((fp = fopen(file, "w")) == NULL)
+		EXIT_FMTERROR("cannot open %s to save profile", file);
 
 	fprintf(fp, "### bsddialog theme - %s", ctime(&clock));
 	fputs("# Refer to bsddialog(3) manual for theme.* properties\n", fp);
@@ -167,11 +169,15 @@ int savetheme(const char *file, char *errbuf, const char *version)
 	}
 
 	fclose(fp);
+}
 
-	return (BSDDIALOG_OK);
+void setdeftheme(enum bsddialog_default_theme theme)
+{
+	if (bsddialog_set_default_theme(theme) != BSDDIALOG_OK)
+		EXIT_FMTERROR("%s", bsddialog_geterror());
 }
 
-int loadtheme(const char *file, char *errbuf)
+void loadtheme(const char *file)
 {
 	bool boolvalue;
 	char charvalue, *value;
@@ -181,21 +187,16 @@ int loadtheme(const char *file, char *errbuf)
 	enum bsddialog_color bg, fg;
 	FILE *fp;
 
-	if (bsddialog_get_theme(&t) != BSDDIALOG_OK) {
-		sprintf(errbuf, "Cannot get current theme: %s",
+	if (bsddialog_get_theme(&t) != BSDDIALOG_OK)
+		EXIT_FMTERROR("Cannot get current theme: %s",
 		    bsddialog_geterror());
-		return (BSDDIALOG_ERROR);
-	}
 
-	if((fp = fopen(file, "r")) == NULL) {
-		sprintf(errbuf, "Cannot open theme \"%s\"", file);
-		return (BSDDIALOG_ERROR);
-	}
+	if((fp = fopen(file, "r")) == NULL)
+		EXIT_FMTERROR("Cannot open theme \"%s\"", file);
 
-#define RETURN_ERROR(name, error) do {                                         \
-	sprintf(errbuf, "%s for \"%s\"", error, name);                         \
+#define EXIT_ERROR(name, error) do {                                           \
 	fclose(fp);                                                            \
-	return (BSDDIALOG_ERROR);                                              \
+	EXIT_FMTERROR("%s for \"%s\"", error, name);                           \
 } while (0)
 
 	while(fgets(line, BUFSIZ, fp) != NULL) {
@@ -211,7 +212,7 @@ int loadtheme(const char *file, char *errbuf)
 		if (i >= NPROPERTY) {
 			if (strcmp(name, "version") == 0)
 				continue;
-			RETURN_ERROR(name, "Unknown theme property name");
+			EXIT_ERROR(name, "Unknown theme property name");
 		}
 		switch (p[i].type) {
 		case CHAR:
@@ -219,17 +220,17 @@ int loadtheme(const char *file, char *errbuf)
 			    value[0] == '\0')
 				value++;
 			if (sscanf(value, "%c", &charvalue) != 1)
-				RETURN_ERROR(p[i].name, "Cannot get a char");
+				EXIT_ERROR(p[i].name, "Cannot get a char");
 			*((int*)p[i].value) = charvalue;
 			break;
 		case INT:
 			if (sscanf(value, "%d", &intvalue) != 1)
-				RETURN_ERROR(p[i].name, "Cannot get a int");
+				EXIT_ERROR(p[i].name, "Cannot get a int");
 			*((int*)p[i].value) = intvalue;
 			break;
 		case UINT:
 			if (sscanf(value, "%u", &uintvalue) != 1)
-				RETURN_ERROR(p[i].name, "Cannot get a uint");
+				EXIT_ERROR(p[i].name, "Cannot get a uint");
 			*((unsigned int*)p[i].value) = uintvalue;
 			break;
 		case BOOL:
@@ -239,19 +240,19 @@ int loadtheme(const char *file, char *errbuf)
 			break;
 		case COLOR:
 			if (sscanf(value, "%s %s", c1, c2) != 2)
-				RETURN_ERROR(p[i].name, "Cannot get 2 colors");
+				EXIT_ERROR(p[i].name, "Cannot get 2 colors");
 			/* Foreground */
 			for (j = 0; j < 8 ; j++)
 				if ((strstr(c1, color[j])) != NULL)
 					break;
 			if ((fg = j) > 7)
-				RETURN_ERROR(p[i].name, "Bad foreground");
+				EXIT_ERROR(p[i].name, "Bad foreground");
 			/* Background */
 			for (j = 0; j < 8 ; j++)
 				if ((value = strstr(c2, color[j])) != NULL)
 					break;
 			if ((bg = j) > 7)
-				RETURN_ERROR(p[i].name, "Bad background");
+				EXIT_ERROR(p[i].name, "Bad background");
 			/* Flags */
 			flags = 0;
 			if (strstr(value, "bold") != NULL)
@@ -268,11 +269,9 @@ int loadtheme(const char *file, char *errbuf)
 	fclose(fp);
 
 	bsddialog_set_theme(&t);
-
-	return (BSDDIALOG_OK);
 }
 
-int bikeshed(struct bsddialog_conf *conf, char *errbuf)
+void bikeshed(struct bsddialog_conf *conf)
 {
 	int margin, i;
 	int colors[8] = {0, 0, 0, 0 ,0 ,0 , 0, 0};
@@ -284,7 +283,7 @@ int bikeshed(struct bsddialog_conf *conf, char *errbuf)
 
 	/* theme */
 	if (bsddialog_get_theme(&t) != BSDDIALOG_OK)
-		return (BSDDIALOG_ERROR);
+		EXIT_FMTERROR("%s", bsddialog_geterror());
 
 	for (i = 0; i < 6; i++) {
 		do {
@@ -339,7 +338,7 @@ int bikeshed(struct bsddialog_conf *conf, char *errbuf)
 	t.button.shortcutcolor   = bsddialog_color(col[1], col[5], 0);
 
 	if (bsddialog_set_theme(&t))
-		return (BSDDIALOG_ERROR);
+		EXIT_FMTERROR("%s", bsddialog_geterror());
 
 	/* conf */
 	conf->button.always_active = (rand() % 2 == 0) ? true : false;
@@ -351,6 +350,4 @@ int bikeshed(struct bsddialog_conf *conf, char *errbuf)
 		memset(title + strlen(title), ' ', margin);
 		conf->title = title;
 	}
-
-	return (BSDDIALOG_OK);
 }
diff --git a/util_theme.h b/util_theme.h
index fd9b32db1204..bf51447dfb2c 100644
--- a/util_theme.h
+++ b/util_theme.h
@@ -28,8 +28,9 @@
 #ifndef _BSDDIALOG_UTILITY_THEME_H_
 #define _BSDDIALOG_UTILITY_THEME_H_
 
-int savetheme(const char *file, char *errbuf, const char *version);
-int loadtheme(const char *file, char *errbuf);
-int bikeshed(struct bsddialog_conf *conf, char *errbuf);
+void savetheme(const char *file, const char *version);
+void loadtheme(const char *file);
+void setdeftheme(enum bsddialog_default_theme theme);
+void bikeshed(struct bsddialog_conf *conf);
 
 #endif