Re: [PATCH] pretty: Provide a strict ISO8601 date format

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On Thu, Aug 28, 2014 at 03:53:13PM -0700, Junio C Hamano wrote:
> Beat Bolli writes:
> > +	else if (mode == DATE_ISO8601_STRICT)
> > +		strbuf_addf(&timebuf, "%04d-%02d-%02dT%02d:%02d:%02d%+03d:%02d",
> > +				tm->tm_year + 1900,
> > +				tm->tm_mon + 1,
> > +				tm->tm_mday,
> > +				tm->tm_hour, tm->tm_min, tm->tm_sec,
> > +				tz / 100, abs(tz % 100));
> 
> Wouldn't this misidentify a zone that is 30 minutes off of GMT,
> i.e. tz == -30?  tz/100 would not be negative and "%+03d:" would
> happily show "+00:", no?

No.  strbuf_addf uses strbuf_vaddf which uses vsnprintf(3).  From man
vsnprintf(3):
>   The flag characters
>       The character % is followed by zero or more of the following
>       flags:
>
>       +      A sign (+ or -) should always be placed before a number
>              produced by a signed conversion.  By default a sign is
>              used only for negative numbers.  A + overrides a space if
>              both are used.

Perhaps you misread "%+03d:" as "+%02d:"?

-- 
Scott Schmit
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