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bug#7325: new test failure due to non-portability of printf formats like
From: |
Pádraig Brady |
Subject: |
bug#7325: new test failure due to non-portability of printf formats like %05.3s |
Date: |
Wed, 03 Nov 2010 23:42:44 +0000 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 |
On 03/11/10 19:27, Eric Blake wrote:
> On 11/03/2010 12:59 PM, Jim Meyering wrote:
>> Note that coreutils' printf does not accept the '0' modifier in a %s format.
>>
>> $ env printf '%05.3s\n' 23
>> printf: %05.3s: invalid conversion specification
>>
>> That's because POSIX says the "0" modifier applies only to the
>> d, i, o, u, x, X, a, A, e, E, f, F, g, and G conversion specifiers.
>>
>> One solution is to trim off the "0".
>> It's probably a good idea regardless, in case some implementation rejects it.
>>
>> On the other hand, I find the zero-padding you currently get
>> with stat on solaris to be slightly more intuitive.
>
> I agree that %05.3:X resulting in 00023 would be ideal.
I disagree because I can't see how that's useful.
The above is for 023xxxxxx nanoseconds.
So what is 23 in that context?
> And I agree that we'd have to trim off the 0 modifier before calling the
> underlying
> printf %s, and thus be responsible for putting in '0' padding ourselves
> rather than relying on printf() padding.
>
I'd just strip any leading 0 if a precision is specified,
to suppress the problematic solaris behavior.
cheers,
Pádraig.
- bug#7325: new test failure due to non-portability of printf formats like %05.3s, (continued)
- bug#7325: new test failure due to non-portability of printf formats like %05.3s, Pádraig Brady, 2010/11/11
- bug#7325: new test failure due to non-portability of printf formats like %05.3s, Jim Meyering, 2010/11/12
- bug#7325: new test failure due to non-portability of printf formats like %05.3s, Pádraig Brady, 2010/11/12
- bug#7325: new test failure due to non-portability of printf formats like %05.3s, Jim Meyering, 2010/11/12
- bug#7325: new test failure due to non-portability of printf formats like %05.3s, Paul Eggert, 2010/11/12
- bug#7325: new test failure due to non-portability of printf formats like %05.3s, Jim Meyering, 2010/11/13
- bug#7325: new test failure due to non-portability of printf formats like %05.3s, Paul Eggert, 2010/11/13
- bug#7325: new test failure due to non-portability of printf formats like %05.3s, Jim Meyering, 2010/11/13
- bug#7325: new test failure due to non-portability of printf formats like %05.3s, Jim Meyering, 2010/11/13
- bug#7325: new test failure due to non-portability of printf formats like %05.3s, Paul Eggert, 2010/11/13
bug#7325: new test failure due to non-portability of printf formats like %05.3s,
Pádraig Brady <=