NavList:

At 08:24 AM 3/8/04 -0800, you wrote:

Hi List,

I'm new to this Navigation-L, and I joined it on the advice of Arthur
Pearson, who has a very interesting web site about Lunar Distances.
I have developed and implemented a bunch of algorithms for Celestial
Navigation, in Java (that runs virtually on any platform), you can take a
look at http://celestjava.sourceforge.net, it is free and open source, plus
I wen through the validation smoke test this week-end, ... it seems to work
fine!

When I try to run the celest.bat batch file, it loops trying to get input from the user.

The problem is that my Windows 98 DOS does not have a set /P switch nor does in understand
the dos if /I switch.

Below is a segment of the batch file with the set /P command replaced with a choice command
and the /I switch removed from the if commands.  I also had to rem-out the line that tried to
reduce the string choice to one character; don't know why, maybe my dos has no substring
capabilities. It now runs on my dos.  I guess the choice command went away in newer dos
versions.

BTW, here's a nice link concerning user batch file input  http://www.robvanderwoude.com/index.html
It's hard to believe that the original DOS provided no way of getting input from the user.  I vaguely
remember writing such a command many years ago.

echo ---------------------------------------
:: set /P prompts for input and sets the variable
:: to whatever the user types
set Choice=Q
rem set /P not functional in my dos
rem set /P Choice=Type the letter and press Enter:
choice /C:ABCDEFGHIJKLQ /N Type the letter and press enter:
IF ERRORLEVEL 1 SET Choice=A
IF ERRORLEVEL 2 SET Choice=B
IF ERRORLEVEL 3 SET Choice=C
IF ERRORLEVEL 4 SET Choice=D
IF ERRORLEVEL 5 SET Choice=E
IF ERRORLEVEL 6 SET Choice=F
IF ERRORLEVEL 7 SET Choice=G
IF ERRORLEVEL 8 SET Choice=H
IF ERRORLEVEL 9 SET Choice=I
IF ERRORLEVEL 10 SET Choice=J
IF ERRORLEVEL 11 SET Choice=K
IF ERRORLEVEL 12 SET Choice=L
IF ERRORLEVEL 13 SET Choice=Q
rem
:: The syntax in the next line extracts the substring
:: starting at 0 (the beginning) and 1 character long
rem if NOT '%Choice%'=='' set Choice=%Choice:~0,1%
echo.
:: /I makes the if comparison case-insensitive
if '%Choice%'=='A' goto ItemA
if '%Choice%'=='B' goto ItemB
if '%Choice%'=='C' goto ItemC
if '%Choice%'=='D' goto ItemD
if '%Choice%'=='E' goto ItemE
if '%Choice%'=='F' goto ItemF
if '%Choice%'=='G' goto ItemG
if '%Choice%'=='H' goto ItemH
if '%Choice%'=='I' goto ItemI
if '%Choice%'=='J' goto ItemJ
if '%Choice%'=='K' goto ItemK
if '%Choice%'=='L' goto ItemL
if '%Choice%'=='Q' goto End