Hi James, On Tue, Apr 28, 2015 at 2:13 PM, James Chargin <jimccr...@gmail.com> wrote: > Dear Joe, > > On 04/28/2015 11:35 AM, Joe Hershberger wrote: >> >> Hi James, >> >> On Tue, Apr 28, 2015 at 1:19 PM, James Chargin <jimccr...@gmail.com> >> wrote: >>> >>> Dear Joe Hershberger, >>> >>> On 04/28/2015 11:00 AM, Joe Hershberger wrote: >>>> >>>> >>>> Hi Joakim, >>>> >>>> On Mon, Apr 27, 2015 at 8:39 AM, Joakim Tjernlund >>>> <joakim.tjernl...@transmode.se> wrote: >>>>> >>>>> >>>>> Trying to get a better handle of HUSH shell expressions, this does not >>>>> work as I expect: >>>>> => false && true || echo ECHO >>>>> => false && false || echo ECHO > > > ... > >> >> I always just assumed this was a limitation of hush, but it's now >> looking like a bug instead. >> >> I haven't debugged into it, but I tend to stay away from hush these >> days. When I've submitted a bug fix to this area I've been told that >> we should upgrade wholesale instead, and I've haven't been up for that >> task so far. >> http://lists.denx.de/pipermail/u-boot/2012-November/139841.html > > > That's a great conversation with Wolfgang, thanks for the reference. > > Like you, I have tended to use hush carefully. It is similar to sh/bash, but > different enough that I never count on an easy port of bash script > fragments. > > I noticed you asked for a reference to the original hush code that is the > origin for U-Boot's adaptation. I couldn't find a reply to that question. I > also haven't been able to find anything with a quick we search. Do you know > where it did come from?
I never got a response, but it appears to be busybox... http://git.busybox.net/busybox/tree/shell/hush.c >> >> Perhaps there is an easy, minor bugfix for this that would be >> palette-able. > > > I've been "afraid" of the hush code for a while. I don't think I want to > mess with it now. I'll just continue to work with what we've got, carefully. > > Thanks again for your attention, No problem... Cheers, -Joe _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
