Re: --no-handle-help|version

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
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