Re: Solaris test failure for git-1.5.4.4 -- t0021-conversion.sh

From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Mar 12, 2008, 13:11 UTC
Message-ID: <alpine.LSU.1.00.0803121410090.1656@racer.site>
In-Reply-To: <20080312124825.GA8447@coredump.intra.peff.net>

Hi,

On Wed, 12 Mar 2008, Jeff King wrote:

Show 24 quoted lines

> On Wed, Mar 12, 2008 at 08:43:36AM -0400, Jeff King wrote:
> 
> > It seems that /usr/bin/tr silently removes NULs from the input stream:
> > 
> >   $ printf 'foo\000bar' | xxd
> >   0000000: 666f 6f00 6261 72                        foo.bar
> >   $ printf 'foo\000bar' | /usr/bin/tr '\000' 'Q' | xxd
> >   0000000: 666f 6f62 6172                           foobar
> > 
> > I don't think there is an easy way around this; we might have to switch
> > to using perl.
> 
> Even more exciting, /usr/bin/tr actually works going the opposite
> direction, but /usr/ucb/tr doesn't:
> 
>   $ echo x | /usr/bin/tr x '\000' | xxd
>   0000000: 000a                                     ..
>   $ echo x | /usr/ucb/tr x '\000' | xxd
>   0000000: 780a                                     x.
> 
> but other characters seem to work:
> 
>   $ echo x | /usr/ucb/tr x '\012' | xxd
>   0000000: 0a0a                                     ..

All the more reson to make more things builtin. (I agree that for tests, we should stay with tr, though.)

Ciao, Dscho