Re: [help-gengetopt] Re: Re: wishlist: mandatory parameters

[Lorenzo Bettini]

T wrote:
> On Sun, 01 Oct 2006 13:55:07 +0200, Papp Gyozo (VBuster) wrote:
>
> > > I want, with the help of "mandatory parameter", it can be:
> > >
> > >   Usage: sample1 [OPTIONS]... SOURCE DEST
> > >
> > >   SOURCE mandatory parameter to ...
> > >   DEST ... copy SOURCE to DEST
> > Actually SOURCE and DEST is called unnamed options in gengetopt because as
>
> I search for the keyword "unnamed" in the manual but didn't find anything.
>
> > hint: gengetopt --help | grep -i unname
>
> returns nothing.

it's a "unamed" :-)

> > I think what you really want is to be able to name some of the unnamed
> > options (SOURCE & DEST) and to use those as a normal mandatory
> > parameters. If those are missing prgram exits with failure. Am I right?
>
> Yes. 
>
> But I guess it is hard to implement naming those unnamed options, and
> I think it is better to let the main program handle the stored
> parameters in the array 'inputs' of the args_info structure, not gengetopt. 

if you try the candidate release I was talking about in my previous 
posts you can specify the usage string in order to get

Usage: sample1 [OPTIONS]... SOURCE DEST

> What gengetopt can do, however, is to document those mandatory parameters.
> After all that's the on-line help that users see. If they are not
> documented in the on-line help, for the 99% of people who don't read man
> pages, they have to try-and-error to know what parameters are mandatory.

yes the mandatory options (those with names like --input, -a, etc.) are 
now (in the candidate release whose url I sent in my previous post) 
printed in the output of help (provided that --show-required is passed 
to gengetopt as a parameter)

hope to hear from you soon
cheers
        Lorenzo

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