On 2022/12/24 11:56:37 +0100, Florian Obser <[email protected]> wrote:
> This is at least supported by FreeBSD's units(1) as well as by
> systemd/Linux.
>
> [...]
>
> OK?
it's really handy, ok for me! (with s/options/option as mentioned by
Crystal Kolipe.)
the -f '' seems a bit weird to be fair, but it's also possible to do
-f /usr/share/misc/units.lib now at least :)
> diff --git units.1 units.1
> index d7a45f729b3..916d1b03d32 100644
> --- units.1
> +++ units.1
> @@ -79,6 +79,11 @@ The options are as follows:
> .Bl -tag -width Ds
> .It Fl f Ar filename
> Specifies the name of the units data file to load.
> +This options may be specified multiple times.
> +The standard units library is read if
> +.Ar filename
> +is the empty string.
> +This allows extending the standard units library with a personal library.
> .It Fl q
> Suppresses prompting of the user for units and the display of statistics
> about the number of units loaded.
> diff --git units.c units.c
> index 98af5031fb1..488795c78cb 100644
> --- units.c
> +++ units.c
> @@ -100,7 +100,6 @@ readunits(char *userfile)
> int len, linenum, i;
> FILE *unitfile;
>
> - unitcount = 0;
> linenum = 0;
>
> if (userfile) {
> @@ -626,8 +625,7 @@ main(int argc, char **argv)
> struct unittype have, want;
> char havestr[81], wantstr[81];
> int optchar;
> - char *userfile = 0;
> - int quiet = 0;
> + int quiet = 0, units_read = 0;
>
> extern char *optarg;
> extern int optind;
> @@ -638,7 +636,8 @@ main(int argc, char **argv)
> while ((optchar = getopt(argc, argv, "vqf:")) != -1) {
> switch (optchar) {
> case 'f':
> - userfile = optarg;
> + units_read = 1;
> + readunits(*optarg == '\0' ? NULL : optarg);
> break;
> case 'q':
> quiet = 1;
> @@ -662,7 +661,8 @@ main(int argc, char **argv)
> if (argc != 3 && argc != 2 && argc != 0)
> usage();
>
> - readunits(userfile);
> + if (!units_read)
> + readunits(NULL);
>
> if (pledge("stdio", NULL) == -1)
> err(1, "pledge");
