freebsd-dev/contrib/bsddialog/bsddialog.1

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.\" Copyright (c) 2021-2022 Alfonso Sabato Siciliano
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.Dd September 23, 2022
.Dt BSDDIALOG 1
.Os
.Sh NAME
.Nm bsddialog
.Nd TUI dialogs
.Sh SYNOPSIS
.Nm
.Fl Fl help
.Nm
.Fl Fl version
.Nm
.Op Fl Fl option
.Fl Fl dialog
.Ar text
.Ar rows
.Ar cols
.Op Ar dialog-argument
.Nm
.Fl Fl dialog1
.Ar ...
.Oo Fl Fl and-dialog
.Fl Fl dialog2
.Ar ...
.Oc ...
.Sh DESCRIPTION
The
.Nm bsddialog
utility builds Text User Interface dialogs and widgets: to display messages,
to get input and to inform about a computation status.
.Pp
The options
.Fl Fl help
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
.Ar text
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 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
Title on the top side of the screen.
.It Fl Fl begin-x Ar x
Dialog horizontal position, 0 is the left screen side, -1 center.
.It Fl Fl begin-y Ar y
Dialog vertical position, 0 is the top screen side, -1 center.
.It Fl Fl bikeshed
Random settings.
Colors.
Delimiter and margins around the title.
Buttons always active or TAB to switch focus with input components, see
.Fl Fl switch-buttons .
Zero padding with time or date output.
.It Fl Fl cancel-label Ar label
Label for the
.Dq Cancel
button.
.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
.It Dq \eZ0
black.
.It Dq \eZ1
red.
.It Dq \eZ2
green.
.It Dq \eZ3
yellow.
.It Dq \eZ4
blue.
.It Dq \eZ5
magenta.
.It Dq \eZ6
cyan.
.It Dq \eZ7
white.
.It Dq \eZr
reverse foreground and background.
.It Dq \eZR
disable reverse.
.It Dq \eZb
bold.
.It Dq \eZB
disable bold.
.It Dq \eZu
underline.
.It Dq \eZU
disable underline.
.It Dq \eZn
restore normal text.
.El
.It Fl Fl columns-per-row Ar columns
Try to set the number of columns for a row of text with autosizing; default
.Dv 10 .
.It Fl Fl cr-wrap
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
and
.Fl Fl calendar
.It Fl Fl default-button Ar label
Focus on the button with
.Ar label
on startup.
.It Fl Fl default-item Ar name
Focus on the item with
.Ar name ,
for Checklist, Menu, Radiolist and Treeview.
.It Fl Fl default-no
Focus on
.Dq Cancel
or
.Dq \&No
button on startup.
.It Fl Fl disable-esc
Disable ESC key to quit.
.It Fl Fl esc-return-cancel
ESC key returns
.Dq Cancel
button value.
.It Fl Fl extra-button
Add a button with
.Dq Extra
label.
.It Fl Fl extra-label Ar label
Set
.Ar label
for the
.Dq Extra
button.
.It Fl Fl generic-button1 Ar label
Add a button with
.Ar label .
.It Fl Fl generic-button2 Ar label
Add a button with
.Ar label .
.It Fl Fl help-button
Add a button with
.Dq Help
label.
.It Fl Fl help-label Ar label
Set
.Ar label
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 hfile Ar filename
Open
.Ar filename
in a Textbox if F1 key is pressed,
.It Fl Fl hline Ar string
Dialog subtitle.
.It Fl Fl hmsg Ar string
Open a Msgbox with
.Ar string
if the F1 key is pressed.
.It Fl Fl ignore
Do not exit with unknown options.
.It Fl Fl insecure
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-prefix
Set a string to prefix each item of a Checklist, Menu, Radiolist or Treeview.
.It Fl Fl load-theme Ar file
Load theme from
.Ar file .
.It Fl Fl max-input Ar size
Maximum length of the input for
.Fl Fl inputbox
ans
.Fl Fl passwordbox ,
default 2048.
.It Fl Fl no-cancel
Do not show
.Dq Cancel
button.
.It Fl Fl no-descriptions
Do not display items desciption, for Checklist, Menu, Radiolist or Treeview.
.It Fl Fl no-lines
Do not draw borders and lines.
.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 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 shadow
Show a pseudo shadow for the dialog, enabled by default.
.It Fl Fl single-quoted
Use single quote for items in output.
.It Fl Fl sleep Ar secs
Wait
.Ar secs
seconds to close the dialog.
.It Fl Fl stderr
Print input from user interface to standand error, default.
.It Fl Fl stdout
Print input from user interface to standard output.
.It Fl Fl switch-buttons
enables focus switching between buttons and input components pressing TAB,
otherwise buttons are always active and ENTER key closes the dialog.
Suitable for:
.Fl Fl form ,
.Fl Fl inputbox ,
.Fl Fl mixedform ,
.Fl Fl passwordbox ,
.Fl Fl passwordform ,
.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
String accepted by
.Xr strftime 3
to customize the output of
.Fl Fl timebox .
.It Fl Fl title Ar title
Dialog title.
.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.
An item has a
.Ar name ,
.Ar desc
and a default
.Ar status
specified by
.Dq on
or
.Dq off .
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 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 ...
Dialog to get a list of strings via forms.
A form has a
.Ar label
at the position
.Ar ylabel
and
.Ar xlabel ,
a field to get the input at the position
.Ar yfield
and
.Ar xfield
with graphical length
.Ar fieldlen ,
.Ar maxletters
is the maximum input length.
The field can be customized, if
.Ar fieldlen
is negative the field is read only and its absolute value is the field length.
If
.Ar maxletters
is 0 it is the absolute value of
.Ar fieldlen .
.Ar init
is a default value.
.Ar formrows
is the graphical height of the list,
.Dv 0
for autosize.
.It Fl Fl gauge Ar text Ar rows Ar cols Op Ar percentage
Dialog with a bar to shows
.Ar percentage ,
then it waits to read
.Dq XXX
from the standard input, then the first string replaces percentage and the
following strings replace
.Ar text
until the next
.Dq XXX ,
the loop ends reading
.Dv EOF .
.It Fl Fl infobox Ar text Ar rows Ar cols
Dialog without buttons to display a message and to exit immediately.
.It Fl Fl inputbox Ar text Ar rows Ar cols Op Ar init
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, Space key is equivalent to Enter.
An item has a
.Ar name
and a
.Ar desc .
The name of the selected item is printed to standard error.
.Ar menurows
is the graphical height of the list, 0 for autosize.
.It Fl Fl mixedform 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 Ar flag Oc ...
Dialog to get a list of strings via forms.
A form has a
.Ar label
at the position
.Ar ylabel
and
.Ar xlabel ,
a field to get the input with graphical length
.Ar fieldlen
at the position
.Ar yfield
and
.Ar xfield ,
.Ar maxletters
is the maximum input length,
.Ar init
is a default value,
.Ar flag
can be 0 for normal field, 1 to hide the typed characters and 2 to set the
field read only.
.Ar formrows
is the graphical height of the list,
.Dv 0
for autosize.
.It Fl Fl mixedgauge Ar text Ar rows Ar cols Ar mainperc Oo Ar minilabel \
Ar miniperc Oc ...
Dialog to show a main bar to represent
.Ar mainperc
from 0 to 100 and some mini bar with a
.Ar minilabel
string and a
.Ar miniperc
with value from 0 and 100 or negative to print a descriptive string: -1
.Dq Succeeded ,
-2
.Dq Failed ,
-3
.Dq Passed ,
-4
.Dq Completed ,
-5
.Dq Checked ,
-6
.Dq Done ,
-7
.Dq Skipped ,
-8
.Dq \&In Progress ,
-9
a blank line,
-10
.Dq N/A ,
-11
.Dq Pending .
.It Fl Fl msgbox Ar text Ar rows Ar cols
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
is the default value.
.It Fl Fl passwordform 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 ...
Dialog to get a list of passwords, equivalent to
.Fl Fl form
except typed characters are hidden.
.It Fl Fl pause Ar text Ar rows Ar cols Ar seconds
Dialog runs until the timeout in
.Ar seconds
expires or a button is pressed.
.It Fl Fl radiolist Ar text Ar rows Ar cols Ar menurows Oo Ar name Ar desc \
Ar status Oc ...
Radiolist to select at most an item from a list via the SPACE key.
An item has a
.Ar name ,
.Ar desc
and a default
.Ar status
specified by
.Dq on
or
.Dq off .
The name of the selected item is printed to standard error.
.Ar menurows
is the graphical height of the list, 0 for autosize.
.It Fl Fl rangebox Ar text Ar rows Ar cols Ar min Ar max Op Ar init
Dialog to select a value between
.Ar min
and
.Ar max ,
.Ar init
is the default value, the keys UP, DOWN, HOME, END, PAGEUP and PAGEDOWN can
change it.
.It Fl Fl textbox Ar file Ar rows Ar cols
Opens and prints
.Ar file
the UP, DOWN, HOME, END, PAGEUP and PAGEDOWN keys are availble to navigate;
.Dq OK
button is renamed
.Dq EXIT .
.It Fl Fl timebox Ar text Ar rows Ar cols Op Ar hour Ar min Ar sec
Dialog to select a time.
.It Fl Fl treeview Ar text Ar rows Ar cols Ar menurows Oo Ar depth Ar name \
Ar desc Ar status Oc ...
Equivalent to Radiolist with
.Fl Fl  item-depth
and
.Fl Fl no-name .
.It Fl Fl yesno Ar text Ar rows Ar cols
.Dq Yes-No Question ,
.Dq OK
and
.Dq Cancel
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
.Nm
utility exits 255 on unsuccessful, otherwise depending on the button or key
pressed the following values can be returned:
.Bl -column -compact
.It 0
.Dq OK ,
.Dq Yes
or
.Dq Exit
button.
.It 1
.Dq Cancel
or
.Dq \&No
button.
.It 2
.Dq Help
button.
.It 3
.Dq Extra
button.
.It 4
Timeout.
.It 5
ESC key.
.It 6
Generic 1 button.
.It 7
Generic 2 button.
.El
.Sh EXAMPLES
Backtitle, title and message:
.Dl bsddialog --backtitle MESSAGE --title Msgbox --msgbox Message 0 0
.Pp
Yes-No Question and theme:
.Dl bsddialog --theme blackwhite --yesno Question 10 30
.Pp
Save a custom theme:
.Dl bsddialog --save-theme mytheme.txt --infobox \*qSaving theme...\*q 0 0
.Pp
Load a custom theme:
.Dl bsddialog --load-theme mytheme.txt --infobox \*qCustom theme\*q 0 0
.Pp
Checklist:
.Dl bsddialog --checklist Checklist 0 0 3 N1 \&D1 off N2 D2 on N3 D3 off
.Pp
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
Mixedgauge:
.Dl bsddialog --sleep 3 --mixedgauge Example 10 30 60 L1 \*q -1\*q L2 30
.Pp
Mixedgauge script:
.Bd -literal -offset indent -compact
perc=0
while [ $perc -le 100 ]
do
	bsddialog --sleep 1 --title Mixedgauge          \e
		--mixedgauge "\enExample...\en" 0 0 $perc \e
		"Hidden"   " -9"                        \e
		"Label 1"  " -4"                        \e
		"Label 2"  " -4"                        \e
		"Label 3"  $perc

	perc=`expr $perc + 20`
done
.Ed
.Pp
Gauge script:
.Bd -literal -offset indent -compact
i=1
for c in A B C D E F G H
do
	sleep 1
	echo XXX
	echo "$(expr $(expr $i "*" 100) "/" 8)"
	echo "[$i/8] Char: $c"
	echo XXX
	if [ $i -eq 8 ]
	then
		sleep 1
		echo EOF
	fi
	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
The
.Nm bsddialog
utility first appeared in
.Fx 14.0 .
.Sh AUTHORS
.Nm bsddialog
was written by
.An Alfonso Sabato Siciliano
.Aq Mt asiciliano@FreeBSD.org .
.Pp
.Nm bsddialog
provides a subset of the functionality described in the
.Nm dialog
manual.
The following features were reimplemented:
.Pp
Options:
.Fl Fl and-widget ,
.Fl Fl ascii-lines ,
.Fl Fl backtitle ,
.Fl Fl cancel-label ,
.Fl Fl clear ,
.Fl Fl colors ,
.Fl Fl cr-wrap ,
.Fl Fl date-format ,
.Fl Fl defaultno ,
.Fl Fl default-button ,
.Fl Fl default-no ,
.Fl Fl default-item ,
.Fl Fl exit-label ,
.Fl Fl extra-button ,
.Fl Fl extra-label ,
.Fl Fl help ,
.Fl Fl help-button ,
.Fl Fl help-label ,
.Fl Fl help-status ,
.Fl Fl help-tags ,
.Fl Fl hfile ,
.Fl Fl hline ,
.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-items ,
.Fl Fl no-label ,
.Fl Fl no-lines ,
.Fl Fl no-ok ,
.Fl Fl nook ,
.Fl Fl no-shadow ,
.Fl Fl no-tags ,
.Fl Fl ok-label ,
.Fl Fl output-fd ,
.Fl Fl output-separator ,
.Fl Fl print-maxsize ,
.Fl Fl print-size ,
.Fl Fl print-version ,
.Fl Fl quoted ,
.Fl Fl separate-output ,
.Fl Fl separator ,
.Fl Fl shadow ,
.Fl Fl single-quoted ,
.Fl Fl sleep ,
.Fl Fl stderr ,
.Fl Fl stdout ,
.Fl Fl tab-len ,
.Fl Fl time-format ,
.Fl Fl title ,
.Fl Fl version ,
.Fl Fl yes-label .
.Pp
Dialogs:
.Fl Fl calendar ,
.Fl Fl checklist ,
.Fl Fl form ,
.Fl Fl gauge ,
.Fl Fl infobox ,
.Fl Fl inputbox ,
.Fl Fl menu ,
.Fl Fl mixedform ,
.Fl Fl mixedgauge ,
.Fl Fl msgbox ,
.Fl Fl passwordbox ,
.Fl Fl passwordform ,
.Fl Fl pause ,
.Fl Fl radiolist ,
.Fl Fl rangebox ,
.Fl Fl textbox ,
.Fl Fl timebox ,
.Fl Fl treeview ,
.Fl Fl yesno .
.Pp
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 ,
.An \&Ed Maste
.Aq Mt emaste@FreeBSD.org
and
.An Juraj Lutter
.Aq Mt otis@FreeBSD.org
for suggestions, help, and testing.