On Tue, Feb 06, 2007 at 12:02:36PM +0200, Maxim Veksler wrote:
> 
> I was reading denyhosts:
> """
>        (opts, getopts) = getopt.getopt(args, 'f:c:dinuvps?hV',
>                                        ["file=", "ignore", "verbose", 
>                                        "debug",
>                                         "help", "noemail", "config=",
> "version",
>                                         "migrate", "purge", "daemon", 
>                                         "sync",
>                                         "upgrade099"])
> """
> 
> Python docs doesn't give much help either[1]. man getopt - nada useful.

I don't program in Python, but the standard getopt syntax says that
there two kinds of options. Those that take parameters and those that
are binary switches. So "f" takes a parameter, and so does "c".
"dinuvps?hV" are switches. I assume that the array after it are keyword
parameters instead of single characters.

In PERL, calling getopts with arguments of "-f test -c 2 -d -i -?"

would set opt_f to "test", opt_c to "2", and opt_d, opt_i, and opt_?
to something that would be true in a true/false comparison.
The rest would remain undefined.

Being an old assembly language programer, I always set the variables first,
so my code would have been:

opt_f = "";
opt_c = "";
opt_d = 0;

getopts();

and so on. 

I also assume that the position of the words in the word array have to
match the letter options, and the equal sign is the same as a colon.

Note that case matters, so you can have a string of letters such as
vVdD and so on. Except for a correspondence with the word forms, the
postion in the arrary does not matter, so you can also have:

abcdefgABCDEFG or anything else.

Geoff.

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