Re: [help-gengetopt] --no-handle-help|version

[Lorenzo Bettini]

Papp Gyozo (VBuster) wrote:
> Hi there,
>
> another minor issue I've been faced up now. Even if I add '--no-handle-version' 
> the processing of the commandline finishes right after it encounters with a 
> '-V' or '--version' option.
>
> My application should behave differently, ie. prints the version of other 
> loaded libraries if the required options are given. Now the situation is the 
> latter one does not print engine and vdb version to the output:
>
>   vbscan --vdb= ... --engine=... --version ; both --vdb and --engine processed
>   vbscan --version --vdb= ... --engine=... ; neither --vdb and --engine 
> processed

hi there

actually, --no-handle-version (and similarly --no-handle-help) was 
thought to be used to handle --version in a custom way, while keeping 
the semantics that if --version is specified then the parsing stops (see 
the description of --version option printed by --help)...

However, I agree with you that one might want to go on with parsing...

I don't know whether it's better to change the current 
--no-handle-version implementation and remove the return statement as 
you said (risking to break existing code that used to make the above 
assumption about --version implementation), or provide a way to 
completely redefine the version (and help) options, in such a way that 
the programmer has the complete control for them if he wants to...

any suggestion?

> however in general beside this, gengetopt generated parsers do not deal with 
> the exact order of the program arguments.

could you please provide an example?
notice that the parser completely relies on getopt_long implementation 
about this...

cheers
        Lorenzo

--
Lorenzo Bettini, PhD in Computer Science, DSI, Univ. di Firenze
ICQ# lbetto, 16080134     (GNU/Linux User # 158233)
HOME: http://www.lorenzobettini.it MUSIC: http://www.purplesucker.com
http://www.myspace.com/supertrouperabba
BLOGS: http://tronprog.blogspot.com  http://longlivemusic.blogspot.com
http://www.gnu.org/software/src-highlite
http://www.gnu.org/software/gengetopt
http://www.gnu.org/software/gengen http://doublecpp.sourceforge.net