Re: [PATCH v14 00/13] Port tag.c to use ref-filter.c

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On Mon, Aug 31, 2015 at 5:06 PM, Karthik Nayak <karthik.188@xxxxxxxxx> wrote:
> On Mon, Aug 31, 2015 at 1:01 PM, Matthieu Moy
> <Matthieu.Moy@xxxxxxxxxxxxxxx> wrote:
>> Karthik Nayak <karthik.188@xxxxxxxxx> writes:
>>
>>> * We perform quoting on each layer of nested alignment.
>>
>> I do not understand why.
>>
>> For example, using the tip of karthik/exp on GitHub (on top of this
>> series, d91419b (ref-filter: adopt get_head_description() from branch.c,
>> 2015-08-23)):
>>
>> git for-each-ref --shell \
>>   --format 'x=%(if)foo%(then)%(align:10)XXX%(end)%(else) not foo %(end)'
>>
>> I'd expect an output like:
>>
>> x='XXX      '
>>
>> and instead I get:
>>
>> x=''\''XXX       '\'''
>>
>> which assigns the value 'XXX       ' (including the quotes) to $x. I do
>> not see a use-case for this (well, I could imagine one where we would
>> later call eval "$x", that seems rather far-fetched).
>>
>> I think the quoting should be:
>>
>> 1) When the stack contains only the initial element, quote individual
>>    atoms.
>>
>> 2) When the stack contains exactly two elements and encountering a %(end)
>>    or %(else), quote the entire strbuf of the 2nd level when appending to
>>    the 1st level.
>>
>> 3) When the stack contains more than two elements, perform no quoting at
>>    all. The quoting will be done later by #2.
>>
>
> Yea, That's what Eric was saying, I even made changes which sum up to
> what you're saying :)
>
>> I found a segfault while testing:
>>
>> $ git for-each-ref --format 'x=%(if)%(align:10)%(end)%(then)%(align:10)XXX%(end)%(else)%(end)' --shell
>> zsh: segmentation fault
>>
>
> I wouldn't worry about this ATM, I have made so many changes that the
> tip is barely changed to reflect those, though I'll have a look at it
> :)
>

Was a dereferencing error, fixed it now :)

-- 
Regards,
Karthik Nayak
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