Re: [Cocoadialog-users] Bourne Shell Script Equivalent to Perl Script Sample for CocoaDialog Dropdown

[Bill L. <wl...@sw...>]

On Nov 30, 2008, at 11:44 PM, Thomas Patko wrote:

> Hello Bill:
>
> Thank you very much for the Bourne shell script code and concept.  I  
> agree that it is not necessarily the most elegant approach but the  
> combination of --no-newline and the awk '{print $X}' code reliably  
> script out the multiple variables passed back by CocoaDialog.  I  
> have made it work quite well for my application, wherein I was only  
> really interested in the second variable.

An alternative, without using "awk", and having a "case...esac"  
statement to display the selected answer:

#!/bin/sh

CD="/Applications/CocoaDialog.app/Contents/MacOS/CocoaDialog"

result=`$CD dropdown \
     --title "Preferred OS" \
     --items "Mac OS X" "GNU/Linux" "Windows" \
     --button1 "That one!" \
     --button2 Nevermind`

return=`echo $result | cut -d" " -f1`
answer=`echo $result | cut -d" " -f2`

if [ $return -eq 1 ]; then
     case $answer in
         0)  echo "Mac OS X";;
         1)  echo "GNU/Linux";;
         2)  echo "Windows";;
     esac
else
     echo "Nevermind"
fi

The "--no-newline" really isn't necessary.  I originally included it  
because the original Perl script had it there.  I am using "cut" to  
parse the output rather than "awk".

My complaint with using "awk" is that it is a fairly heavy handed  
approach to a problem.  It is great when you need to do a lot of  
processing of the input but has a tremendous amount of overhead to use  
when the processing is quite simple.

I'm actually very impressed to see that someone is USING this mailing  
list.  The inactivity on this list implies that not much is happening  
with CocoaDialog, which I'm glad to see isn't totally correct.