Le 26/11/15 19:13, Yuri Pankov a écrit :
> On Thu, 26 Nov 2015 18:53:04 +0100, Richard PALO wrote:
>> I filed https://www.illumos.org/issues/6480#change-15783
>>
>> Just curious if anybody else has noticed this sort of thing, perhaps in
>> other tools than /usr/bin/tr?
>
> I think that our tr is correct here - \254 is illegal sequence for
> character in UTF-8 encoding (and tr is "translate characters" as defined
> in tr(1) man page), probably GNU tr simply doesn't check?
>
> Also, are you sure the GNU tr works correctly for you (all done with
> en_US.UTF-8 locale):
>
> altair:yuri:~$ echo 'a b' | /usr/bin/tr ' ' $'\254'
> tr: illegal sequence
> altair:yuri:~$ echo 'a b' | /usr/bin/tr ' ' $'\302\254'
> a¬b
> altair:yuri:~$ echo 'a b' | /usr/gnu/bin/tr ' ' $'\254'
> a▒b
> altair:yuri:~$ echo 'a b' | /usr/gnu/bin/tr ' ' $'\302\254'
> a
> altair:yuri:~$
>
Hmm, I'm still undecided. FWIW I don't have the last issue with gtr,
> richard@omnis:/home/richard/src/ttr$ /usr/gnu/bin/tr --version |head -1
> tr (GNU coreutils) 8.24
(nor with 8.23)
In the script, it is an extended ascii character ('¬' or '\254') that is
provided.
Granted this isn't printable in all locales, but that is not its usage here, it
becomes
a delimiter for subsequent uses of 'cut'.
I can't seem to find any particular clause in POSIX that says the form `tr
string1 string2` must use
'printable' characters.
The source in coreutils only seems to ensure that each octal byte in quoted
form is .le. 255.
That is, used simply as a byte, as illustrated with the /usr/gnu/bin/tr example
which works,
'cut' even seems to do its job consequently.
Can you point me to the relevant clause in POSIX justfying the 'illegal
sequence' in illumos tr?
--
Richard PALO
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