On Thu, Oct 19, 2017 at 09:20:25PM +0200, Andreas Kusalananda K?h?ri wrote:
> >Synopsis: expand(1) manual documents non-existant "-a" option
> >Category: documentation
> >Environment:
> System : OpenBSD 6.2
> Details : OpenBSD 6.2 (GENERIC.MP) #0: Thu Oct 12 19:53:18 CEST 2017
>
> r...@syspatch-62-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
>
> Architecture: OpenBSD.amd64
> Machine : amd64
> >Description:
>
> The documentation of the expand(1) utility contains references to an
> option "-a":
>
> -a By default, only leading blanks and tabs are reconverted to maximal
> strings of tabs. If the -a option is given, tabs are inserted
> whenever they would compress the resultant file by replacing two or
> more characters.
>
> However, this option is not implemented:
>
> while ((c = getopt (argc, argv, "t:")) != -1) {
> switch (c) {
> case 't':
> getstops(optarg);
> break;
> case '?':
> default:
> usage();
> /* NOTREACHED */
> }
> }
>
>
> >How-To-Repeat:
>
> Type "man expand", read.
>
> Then:
>
> $ expand -a somefile
> expand: unknown option -- a
> usage: expand [-t tablist] [file ...]
>
>
> >Fix:
>
> The "-a" option is not part of the POSIX spec for this utility,
> and there's no dead code in expand.c that implments it. I would
> therefore suggest just removing the mentioning of "-a" from expand.1.
> Alternatively, implement the option according to the manual.
>
hi.
the manual page documents both expand and unexpand. guess which one
support -a ;)
jmc
