Any class to help me process the command line options?

[PengYu.UT]

Hi All,

A lot of program has to read some options. I'm wondering whether there
is any standard way to do that. And is there any existing packages or
classes for this purpose?

Somebody mentioned
http://www.gnu.org/software/libc/manual/html_node/Program-Arguments.html#Program-Arguments
to me. Is there anything better than that?

Thanks!

Best wishes,
Peng

 

[Bob Smith]

www.boost.org

They have Boost.Program_options. Not sure how it works (never used it
myself) but sounds like what you are looking for.
http://www.boost.org/doc/html/program_options.html

 

[Abecedarian]

www.boost.org

They have Boost.Program_options. Not sure how it works (never used it

myself) but sounds like what you are looking for.
http://www.boost.org/doc/html/program_options.html

Why do you recommend those strange operator() overloadings? Can you
elaborate?

Thank you!
A.

 

[Larry I Smith]

Hi All,

A lot of program has to read some options. I'm wondering whether there
is any standard way to do that. And is there any existing packages or
classes for this purpose?

Somebody mentioned
http://www.gnu.org/software/libc/manual/html_node/Program-Arguments.html#Program-Arguments
to me. Is there anything better than that?

Thanks!

Best wishes,
Peng

Many implementations provide 'getopt()';
GCC usually does.
Try 'man -S 3 getopt' to see if yours does.

Regards,
Larry

 

[Kristo]

Hi All,

A lot of program has to read some options. I'm wondering whether
there is any standard way to do that. And is there any existing
packages or classes for this purpose?

Somebody mentioned
http://www.gnu.org/software/libc/manual/html_node/Program-Arguments.html#Program-Arguments
to me. Is there anything better than that?

If you want to be standard, using argc and argv is your only option.

Kristo

 

[Peter Koch Larsen]

Why do you recommend those strange operator() overloadings? Can you
elaborate?

Thank you!
A.

It is foremost a question of whether you are comfortable with operator
overloading, i suppose. I only skimmed the documentation, but to me it looks
like a very intuitive interface. If you have recommendations for
improvement, I'm sure the boosters would like to know about them.

/Peter

 

[Abecedarian]

it

I only skimmed the documentation, but to me it looks
like a very intuitive interface.

Wow, I really admire people proficient in Lisp.

 

[Default User]

http://www.gnu.org/software/libc/manual/html_node/Program-Arguments.html#Program-Arguments

If you want to be standard, using argc and argv is your only option.

Or find source code to do it, one of the many implementations of
getopts() or similar things.



Brian

 

[Fabio Fracassi]

Wow, I really admire people proficient in Lisp.

I really don't see how you get to this association.

Besides this sounds a lot like sarcasm, and doesn't help the OP.

Program_options is quite a good package for command line parsing.
(I've tried quite a few) For simple needs you need 10 - 15 Lines of code,
and you can add more advanced Parsing options easily (Config files, grouping
of Options, ...)
Besides it part of Boost, this means it works on most relevant Platfoms, and
is very high quality.

@Abecedarian: It seems that you don't like most of C++ features that go a
bit above novice level, thats fine, but please don't diss anyone and
anything that uses these features.

And another point for Program_options just for you: if you don't like the
operator chaining, you can also use the .add(...) functions, either in a
chaind way like "clp.add("option1,o").add("option2,p");" or free standing
"clp.add("option1,o"); clp.add("option2,p");"

regards

Fabio