VOGONS

Search

Common searches

[SOLVED] DOSBox hang when using "SET /P someVar<SOMEFILE.TXT"

Topic actions

First post, by kroltan

Posted on 
User metadata
Rank Newbie
Rank
Newbie

Okay, the problem with SET /P was answered by Qbix:

Qbix wrote:

SET /P is a NTVDM construct.
Not support in MS DOS 5.0
Use choice

And the actual problematic functionality was solved by aqrit:

aqrit wrote:
maybe use a .bat instead of .txt for config data then have each line in "LASTGAME.BAT" like […]
Show full quote

maybe use a .bat instead of .txt for config data
then have each line in "LASTGAME.BAT" like

SET line1=blah
SET line2=weee
SET line3=splat

And finally, the final .bat ended up like this:

@echo off
if "%1"=="" goto _load
goto play_%1
echo You don't have "%1" configured!
goto _end


:play_lemmings
cd lemmings
call cgalemmi.exe
goto _save
:play_quake
cd quake_sw
call quake.exe
goto _save
:play_warcraft
cd warcraft
call war.exe
goto _save
:_save
cd ..
echo call play %1 > LASTGAME.BAT
goto _end
:_load
call lastgame.bat
goto _end
:_end
cls

Thanks to all persons who helped me, and lastly, sorry for my bad english, it's my second language.

------------------------ORIGINAL POST-----------------------------
Not related to games, but actually a BAT file I'm creating to run games. ("Why not shortcuts?" Well that feels kind of out of place and boring to me)
The problem I'm having is when I try to load a text file that stores the last played game, DOSBox hangs and the console just spams:

SHELL:Redirect input from LASTGAME.TXT

And the DOS window crashes, forcing me to kill the process.
This is the file:

@echo off
IF "%1"=="" (
	goto lastplayed
)
goto %1
echo You don't have "%1" configured!
goto end
:lemmings
echo Starting Lemmings!
cd lemmings
call cgalemmi.exe
goto save
:save
cd ..
echo %1 > LASTGAME.TXT
goto end
:lastplayed
set /P _lg=<LASTGAME.TXT
call play %_lg%
:end

The content is being saved fine, if I use "play lemmings", after the game exits the bat is saved with the content: lemmings
I tested it outside DOSBox and it loads the file correctly, so I guess it's a DOSBox problem. I tried the FOR technique, but it just hangs too without messages.
My computer's specs:
Motherboard: Pegatron IPM41-D3
Processor: Intel Pentium E5600 @3.2GHz (dual-core)[/code]

Last edited by kroltan on 2013-02-19, 16:01. Edited 1 time in total.

Reply 2 of 9, by kroltan

Posted on 
User metadata
Rank Newbie
Rank
Newbie
Qbix wrote:

SET /P is a NTVDM construct.
Not support in MS DOS 5.0
Use choice

Okay, thanks! Will edit the post if it works.
EDIT: Could you provide an example? I don't understand how I would get the file contents out of CHOICE. Googled it and couldn't find a place that explained this. The most relevant things I found are these:
http://www.robvanderwoude.com/choice.php
http://ss64.com/nt/choice.html
In ss64.com, in the SET/P page, it does mention CHOICE as a alternative to read files, but doesn't explain how to use it.

Reply 3 of 9, by kroltan

Posted on 
User metadata
Rank Newbie
Rank
Newbie

Really sorry for this, but: Bump.
I searched everywhere I could and no site other than the two I mentioned in my earlier post talk about CHOICE to read files.
How would I use this command to read the file?

Reply 4 of 9, by Qbix

Posted on 
User metadata
Rank DOSBox Author
Rank
DOSBox Author

choice is used to make choices.
Most common set/p is used to make choices as well
They are not 100% identical or so.

Water flows down the stream
How to ask questions the smart way!

Reply 9 of 9, by kroltan

Posted on 
User metadata
Rank Newbie
Rank
Newbie
aqrit wrote:
maybe use a .bat instead of .txt for config data […]
Show full quote

maybe use a .bat instead of .txt for config data

then have each line in "LASTGAME.BAT" like

SET line1=blah
SET line2=weee
SET line3=splat

YOU. ARE. A. GENIUS!
Since in my environment I am the only one who would modify the file, that would serve just well, because my main .bat would write valid batch to the lastgame.bat, I could simply call it! Kudos, Internets and whatever other reputation currency in existance for you!

Go to top of page Go to top of page
Back to DOSBox General
Close window
Close window