an easter calculating script that uses dc, output does not stop

[Antonio Olivares]

On Wed, Mar 31, 2021 at 3:44 PM Antonio Olivares
<olivares14031 at gmail.com> wrote:
>
> On Wed, Mar 31, 2021 at 3:33 PM Paul Procacci <pprocacci at gmail.com> wrote:
> >
> > It does not output continuously for me.
> >
> > # uname -a
> > FreeBSD nas.myhome 12.2-RELEASE-p4 FreeBSD 12.2-RELEASE-p4 r369444 GENERIC  amd64
> >
> > On Wed, Mar 31, 2021 at 4:30 PM Antonio Olivares <olivares14031 at gmail.com> wrote:
> >>
> >> Dear kind FreeBSD users,
> >>
> >> I found a script which I will attach inline.  It uses dc *to do the
> >> math*, but the output runs indefinitely on FreeBSD machines.
> >>
> >> From
> >> https://forums.opensuse.org/showthread.php/435983-Easter-program
> >>
> >> <----- script follows ----->
> >>
> >> #!/bin/sh
> >> if test $# -lt 1
> >> then
> >>         echo usage: $0 year
> >>         exit 1
> >> fi
> >> echo $* '[ddsf[lfp[too early
> >> ]Pq]s at 1583>@
> >> ddd19%1+sg100/1+d3*4/12-sx8*5+25/5-sz5*4/lx-10-sdlg11*20+lz+lx-30%
> >> d[30+]s at 0>@d[[1+]s at lg11<@]s at 25=@d[1+]s at 24=@se44le-d[30+]s at 21>@dld+7%-7+
> >> [March ]smd[31-[April ]sm]s at 31<@psnlmPpsn1z>p]splpx' | dc | tr '\012' ' '
> >> echo ''
> >>
> >> <----- end of script ------>
> >>
> >> I ran the script successfully during prior versions of FreeBSD, but it
> >> is now running infinitely( infinite loop).  See run:
> >>
> >> ...
> >> to run we put
> >> $ sh easterdc.sh
> >> and the year
> >> olivares at deepcool:~/Downloads/kerTeX/Documents $ sh easterdc.sh
> >> usage: easterdc.sh year
> >> olivares at deepcool:~/Downloads/kerTeX/Documents $ sh easterdc.sh 2021
> >> ........
> >> 4 April April  4 April April  4 April April  4 April April  4 April
> >> April  4 April April  4 April April  4 April April  4 April April  4
> >> April April  4 April April  4 April April  4 April April  4 April
> >> April  4 April April  4 April April  ^C
> >>
> >> ....
> >>
> >> How can I fix this to just output 4 April and stop.  Thanks in Advance.
> >>
> >> Regards,
> >>
> >>
> >> Antonio
> >> _______________________________________________
> >> freebsd-questions at freebsd.org mailing list
> >> https://lists.freebsd.org/mailman/listinfo/freebsd-questions
> >> To unsubscribe, send any mail to "freebsd-questions-unsubscribe at freebsd.org"
> >
> >
> >
> > --
> > __________________
> >
> > :(){ :|:& };:
>
> olivares at e154-1$ sh easterdc.sh
> usage: easterdc.sh year
> olivares at e154-1$ uname -a
> FreeBSD e154-1 12.2-RELEASE-p4 FreeBSD 12.2-RELEASE-p4 GENERIC  amd64
> olivares at e154-1$ sh easterdc.sh
> usage: easterdc.sh year
> olivares at e154-1$ sh easterdc.sh 2021
> 4 April 2021
> olivares at e154-1$
>
> On 13.0RC4 it goes infiintely :(
>
> Best Regards,
>
>
> Antonio

I am looking at the specifics to find out what changed, I have found this:

https://cgit.freebsd.org/src/commit/?id=c41fef90a7d

Contributed Software

Replaced the bc(1) and dc(1) utilities with the version developed by
Gavin D. Howard. The new versions do not depend on an external large
number library, offer GNU bc extensions, are much faster than and fix
POSIX compliance issues of the programs they replace. They support
POSIX message catalogs and come with localized messages in Chinese,
Dutch, English, French, German, Japanese, Polish, Portugueze, and
Russian. The previous implementation is still available in FreeBSD-13
and can be selected instead of the new one by the build option
WITHOUT_GH_BC. c41fef90a7d


I like to use bc and dc with some scripts to calculate things and used
this script.  I do not mind the changes, all I would like to see if it
is possible to add something to script so it can stop like it used to
before.

Best Regards,


Antonio