[debbugs-tracker] bug#21698: closed (accessing multiple flagged values with (ice-9 getopt-long))

[GNU bug Tracking System]

Your message dated Fri, 24 Jun 2016 19:14:28 +0200
with message-id <address@hidden>
and subject line Re: bug#21698: accessing multiple flagged values with (ice-9 
getopt-long)
has caused the debbugs.gnu.org bug report #21698,
regarding accessing multiple flagged values with (ice-9 getopt-long)
to be marked as done.

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21698: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21698
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--- Begin Message --- Subject: accessing multiple flagged values with (ice-9 getopt-long) Date: Sat, 17 Oct 2015 10:05:53 -0700

This is in reference to guile-2.0.11.

The (ice-9 getopt-long) module does not provide a process for accessing multiple command line arguments.

A patch for ice-9/getopt-long.scm  is attached which adds the procedure getopt-ref/many to access multiple argument values.

The following program and results illustrate the use of the current getopt-ref and the proposed getopt-ref/many:

mwette$ ./gotest.scm -f foo1 -b bar1 -f foo2 baz1 baz2

program arguments:

("./gotest.scm" "-f" "foo1" "-b" "bar1" "-f" "foo2" "baz1" "baz2")

getopt using option-ref:

foo: "foo2"

bar: "bar1"

getopt using option-ref/many:

foo: ("foo1" "foo2")

bar: "bar1"

where

mwette$ cat gotest.scm 

#!/opt/local/bin/guile

!#

(use-modules (ice-9 getopt-long))

(define spec

 '((foo (single-char #\f) (value #t))

   (bar (single-char #\b) (value #t))))

(let* ((args (program-arguments))

       (opts (getopt-long args spec)))

  (simple-format #t "program arguments:\n")

  (simple-format #t "~S\n" args)

  (simple-format #t "\ngetopt using option-ref:\n")

  (simple-format #t "foo: ~S\n" (option-ref opts 'foo #f))

  (simple-format #t "bar: ~S\n" (option-ref opts 'bar #f))

  (simple-format #t "\ngetopt using option-ref/many:\n")

  (simple-format #t "foo: ~S\n" (option-ref/many opts 'foo #f))

  (simple-format #t "bar: ~S\n" (option-ref/many opts 'bar #f))

  )

getopt-long.patch
Description: Binary data

--- End Message ---

> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#21698: accessing multiple flagged values with (ice-9 getopt-long)
>
>
>
>
> Date: 
>
> Fri, 24 Jun 2016 19:14:28 +0200
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)
>
>
>
>
> On Fri 24 Jun 2016 17:30, address@hidden (Ludovic Courtès) writes:
>
> > Andy Wingo <address@hidden> skribis:
> >
> >> Thanks for the patch.  My instinct however is to point you towards
> >> SRFI-37, which in addition to supporting multiple argument values can
> >> also be used to fold over the precise argument order.  I just don't know
> >> that we should be expanding (ice-9 getopt-long); it has its use case and
> >> if your needs go beyond it, then probably your needs go way beyond it.
> >>
> >>   https://www.gnu.org/software/guile/manual/html_node/SRFI_002d37.html
> >>
> >> Ludovic, second opinions?
> >
> > Seconded.  I think we should probably “freeze” (ice-9 getopt-long) and
> > recommend SRFI-37.
>
> Okeydoke, closing.  Thanks!
>
> Andy
>
>
> --- End Message ---