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bug#18987: the bourne shell printf-vs-\xHH portability trap
From: |
Jim Meyering |
Subject: |
bug#18987: the bourne shell printf-vs-\xHH portability trap |
Date: |
Fri, 7 Nov 2014 14:45:06 -0800 |
On Fri, Nov 7, 2014 at 2:30 PM, Norihiro Tanaka <address@hidden> wrote:
> Jim Meyering <address@hidden> wrote:
>
>> I ran grep's tests on a debian system this morning and was
>> surprised to see the word-multibyte test fail...
>> Until I realized it was because that system was configured
>> to use dash for /bin/sh, and this test relied on the unportable
>> printf '\xc3\xa1\n' to print an a (A-grave). Using \xHH
>> hexadecimal constants works with bash and zsh, but that
>> is not portable, and dash's printf built-in emits the 9 bytes
>> rather than the expected three.
>>
>> This isn't the first time this has happened, so I'll be writing
>> a syntax-check rule to help avoid another repeat.
>>
>> Here's how I've fixed it:
>
> Thanks, but it seem that it is also unportable. On Solaris 10 and AIX 7,
> below. Need Gawk for tests?
>
> $ awk 'BEGIN { printf "\x41" }' </dev/null
> \x41
By the way, "no", we cannot rely on gawk for these tests.
- bug#18987: the bourne shell printf-vs-\xHH portability trap, (continued)
- bug#18987: the bourne shell printf-vs-\xHH portability trap, Norihiro Tanaka, 2014/11/08
- bug#18987: the bourne shell printf-vs-\xHH portability trap, Jim Meyering, 2014/11/08
- bug#18987: the bourne shell printf-vs-\xHH portability trap, Jim Meyering, 2014/11/08
- bug#18987: the bourne shell printf-vs-\xHH portability trap, Paul Eggert, 2014/11/08
- bug#18987: the bourne shell printf-vs-\xHH portability trap, Jim Meyering, 2014/11/08
- bug#18987: the bourne shell printf-vs-\xHH portability trap, Jim Meyering, 2014/11/09
- bug#18987: the bourne shell printf-vs-\xHH portability trap, Jim Meyering, 2014/11/09
- bug#18987: the bourne shell printf-vs-\xHH portability trap, Paul Eggert, 2014/11/09
- Message not available
- Message not available
- bug#18987: Fwd: bug#18987: the bourne shell printf-vs-\xHH portability trap, Jim Meyering, 2014/11/09
- bug#18987: the bourne shell printf-vs-\xHH portability trap, Norihiro Tanaka, 2014/11/09
bug#18987: the bourne shell printf-vs-\xHH portability trap,
Jim Meyering <=
bug#18987: the bourne shell printf-vs-\xHH portability trap, arnold, 2014/11/08