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

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

"Mark A. Stratman" <ma...@sp...> said:

> There isn't such a flag. But if we look at this example: 
> http://cocoadialog.sourceforge.net/examples/fileselect.sh.txt
> there's a 'while' loop in there that iterates over every line of $rv, 
> each containing a file path.  It would be trivial to add a counter 
> variable in there to count the number of files.
> 
> Surely there's some sort of shell trick to count the number of 
> newline-separated entries in $rv if you don't want to loop over it.  I'm 
> not much of a shell coder though, so unfortunately I can't tell you how 
> to do this (or confirm that it's definitely possible).
> 
> In case it helps, in Perl you can just do: scalar( split /\n/, $rv );
> to get the number of files listed in $rv (a return value from cocoadialog).

You could use "wc -l" to list the number of lines in a string.  Something 
like:

    echo -e "$rv" | wc -l

should return the number of items in this "$rv" list, since each "item" is 
returned on it's own line.

So, extending the "fileselect.sh" example:

    rv=`$CD fileselect \
        --title "This is another fileselect" \
        --text "Pick some files and/or directories" \
        --with-directory $HOME/Documents/ \
        --select-directories \
        --select-multiple`

    if [ -n "$rv" ]; then
        # determine number of items returned
        no_items=`echo -n "$rv" | wc -l`

        # list each item
        cnt=1
        echo -n "$rv" | whiel read file; do
            echo "Item $cnt or $no_items: $file"
            cnt=`expr $cnt + 1`
        done

    fi

I hope that this comes through reasonably.  I'm having to use a webmail 
interface and I hope that the indents display correctly.  If not, I will 
resend this when I get on my "real" machine.

Bill Larson

> Thomas Patko wrote:
> > Is there a way to return the number of files selected when using the
> > filselect cocoadialog with --select-multiple option enabled?  This would 
be
> > quite convenient and I am wondering if there is a flag to return this 
value
> > as perhaps the first return variable followed by all of the file paths
> > thereafter?
> >
> > Thanks,
> >
> > Thomas
> >
> >   
> 
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