ws-choice (Batch Script): Auto-fallback to 'set /p' If choice.exe is Unavailable
ws-choice: _choiceMulti.bat & _choiceYN.bat
This post documents two sub-scripts for automatic fallback to
set /p for systems without choice.exe.
Two flavours:
_choiceMulti.batgives a customizable number of choices_choiceYN.batgives Y or N as choices
These sub-scripts can be found in many of my Windows batch scripts, e.g. ChMac
_choiceMulti.bat
:: ------------------------------------------------------------------------
:: Sub-script: _choiceMulti.bat
:: Version: 1.1
:: Creation Date: 2/11/2009
:: Last Modified: 20/01/2010
:: Supported OS: Windows 2000 or later
:: Description: Automatically fall back to set /p for systems without choice.exe
:: Differentiate choice.exe from Win 9x and 2003/Vista/7
:: Set /p also returns errorlevels
:: Definable number of choices; for YN choices, use ChoiceYN
:: v1.1 adds support of sed and tr to filter inputs
:: For a list of supported parameters, refer to paramter /?
:: ------------------------------------------------------------------------
_choiceMulti.bat - README
:: _choiceMulti.bat
[Usage]
call _choiceMulti /msg "description" [/button "choices"] [/time "sec"]
[/default "choice"] [/errorlevel 1-9]
[/choice "1" ["2"] ["3"] ["4"]...["9"]]
/msg - the line users see when they are asked for input
/button - instead of ascending numbers, users can enter any of these
specified to go to the choice. *1 *2
/time - timeout after specified seconds (used with /default) *1 *2
/default - default answer (used with /time) *1 *2
/errorlevel - outputs errorlevels just as choice.exe. Either this or
/choice has to be set *1 *4
/choice - when users makes a choice, what is carried out. Either this or
/errorlevel has to be set *1 *3 *4
*1 optional
*2 not applicable for "set /p" (you give up set /p support by setting it)
*3 /choice must be the last switch, otherwise it would not run properly
*4 maximum supported choices: 9
:: due to arguments being %1-%9 without shift (may add more in the future)
[Examples]
1) "1" performs "echo 1", "2" performs "echo 2":
:: call _choiceMulti /msg "Choose: [1,2]" /choice "echo 1" "echo 2"
2) Same as 1st, except that after 5 seconds, default answer "1" is supplied
:: call _choiceMulti /msg "Choose: [1,2]" /Default 1 /Time 5 /choice
"echo 1" "echo 2"
3) Same as 1st, except button of choice 1,2 is swapped with A,B.
"Set /p" would fail here; ensure the target system has choice.exe.
:: call _choiceMulti /msg "Choose: [A,B]" /button AB /choice "echo 1"
"echo 2"
* /button is [optional]. when not set, numbering and ascending order,
e.g. 123456789 are assumed to keep compatibility with set /p. If set /p
is unneeded, then anything can be set, e.g. letters and descending order
4) This is the most common. Do nothing but errorlevels just as choice.exe
:: call _choiceMulti /msg "Choose: [1,2]" /errorlevel 2
[Returns]
%errorlevel% 0-9, depends on user choice
_choiceYN.bat
:: ------------------------------------------------------------------------
:: Sub-script: _choiceYN.bat
:: Version: 1.1
:: Creation Date: 2/11/2009
:: Last Modified: 20/01/2010
:: Supported OS: Windows 2000 or later
:: Description: Automatically fall back to set /p for systems without choice.exe
:: Differentiate choice.exe from Win 9x and 2003/Vista/7
:: Set /p also returns errorlevels
:: Gives 2 choices, YN; for other choices, use ChoiceMulti
:: v1.1 adds support of sed and tr to filter inputs
:: For a list of supported parameters, refer to paramter /?
:: ------------------------------------------------------------------------
_ChoiceYN.bat - README
:: _ChoiceYN.bat
[Usage]
call _choiceYN "Message" [Default Choice] [Timeout]
%1 = message shown for choice.exe
%2 = optional default choice, e.g. %defErrAct% *
%3 = optional time in seconds before applying default choice *
* not applicable to "set /p"
[Examples]
1) Displays "An update is available. Get it now? [Y,N]"
:: call _choiceYn "An update is available. Get it now? [Y,N]"
2) Same as 1st, except that after 5 seconds, default answer "N" is supplied.
:: call _choiceYn "An update is available. Get it now? [Y,N]" N 5
[Returns]
%errorlevel% EQU 0 means Y
%errorlevel% NEQ 0 means NDownload
Release History
| Ver | Date | Update Description |
| 1.1 | 20100120 | Support sed and tr for filtering inputs |
| 1.0 | 20091102 | First released in 2009 |
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