---
When I read the getopts description in the man-page I got stumped by the
following part:
getopts optstring var
[..]
If there are no remaining arguments, getopts will set var to
special option, “--”, otherwise, it will set var to “?”
[..]
After I was unable to get getopts to store "--" in var, I asked for help
on comp.unix.shell [1] where it was pointed out to me that actually the
POSIX description of getopts [2] does not include a special option "--";
dash's behaviour of setting var to "?" after the last argument is
correct and that this is most likely an error in the documention.
In case this is not an error: Under what circumstances will var be set
to "--"? Could you provide an example?
[1] https://groups.google.com/forum/#!topic/comp.unix.shell/BIR9dDgKZvg
[2] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/getopts.html
src/dash.1 | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/src/dash.1 b/src/dash.1
index 693c970..832eae7 100644
--- a/src/dash.1
+++ b/src/dash.1
@@ -1402,14 +1402,9 @@ By specifying a colon as the first character of
.Va optstring
all errors will be ignored.
.Pp
-A nonzero value is returned when the last option is reached.
-If there are no remaining arguments,
+After the last option
.Ic getopts
-will set
-.Va var
-to the special option,
-.Dq -- ,
-otherwise, it will set
+will return a non-zero value and set
.Va var
to
.Dq \&? .
--
2.1.4
--
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