That funny “--” before ASIS options with ASIS applications

That funny “--” before ASIS options with ASIS applications

[Yannick Duchêne (Hibou57)]

If you ever wondered where that looking weird to me “--” before ASIS  
options with ASIS applications come from, then here the answer: it comes  
 from POSIX.

Reference:
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap12.html
“12.2 Utility Syntax Guidelines — Guideline 10” says:
> The first -- argument that is not an option-argumentshould be accepted  
> as a delimiter indicating the endof options. Any following arguments  
> should be treatedas operands, even if they begin with the '-' character.

That's finally not that weird as it seemed to me so far, and that's even  
standard. ASIS options are just program operands instead of program  
options.

-- 
“Syntactic sugar causes cancer of the semi-colons.” [1]
“Structured Programming supports the law of the excluded muddle.” [1]
[1]: Epigrams on Programming — Alan J. — P. Yale University

Re: That funny “--” before ASIS options with ASIS applications

[Simon Wright]

"Yannick Duchêne (Hibou57)" <yannick_duchene@yahoo.fr> writes:

> If you ever wondered where that looking weird to me "--" before ASIS
> options with ASIS applications come from, then here the answer: it
> comes from POSIX.

Which ASIS applications?

I would like it if e.g. gnatstub did behave like this: I'm trying to
build GCC 4.8.0 with the ASIS GPL 2012 now, and there are flags that I
would like to pass to Asis.Implementation.Initialize to make the darned
thing work at all; specifically, "-wv" would mean "don't try to do the
strict check on compiler/tool compatibility which results in a
constraint error if using the FSF tree".

Of course, it may be that GNAT GPL 2013 will remove this problem...

Re: That funny “--” before ASIS options with ASIS applications

[Shark8]

On Friday, April 12, 2013 12:53:05 PM UTC-6, Hibou57 (Yannick Duchêne) wrote:
> If you ever wondered where that looking weird to me “--” before ASIS  
> options with ASIS applications come from, then here the answer: it comes  
>  from POSIX.
> 
> Reference:
> 
> http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap12.html
> 
> “12.2 Utility Syntax Guidelines — Guideline 10” says:
> 
> > The first -- argument that is not an option-argument should be accepted  
> > as a delimiter indicating the end of options. Any following arguments  
> > should be treated as operands, even if they begin with the '-' character.
> 
> That's finally not that weird as it seemed to me so far, and that's even  
> standard. ASIS options are just program operands instead of program  
> options.


Ah, *nix... corrupting everything it touches. {POSIX.1 "Core Services" incorporates Standard ANSI C, and is likely one reason that almost all low-level stuff [drivers for devices] is C, feeding back into itself and encouraging HW designers to a C-based mentality.}