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Date: Thu, 20 May 2010 13:52:08 -0500
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: [Qemu-devel] Re: [PATCH 2/6] json-lexer: Handle missing escapes
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To: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>, qemu-devel@nongnu.org

On 05/20/2010 01:47 PM, Luiz Capitulino wrote:
> On Thu, 20 May 2010 11:55:00 -0500
> Anthony Liguori<anthony@codemonkey.ws>  wrote:
>
>    
>> On 05/20/2010 11:27 AM, Luiz Capitulino wrote:
>>      
>>> On Thu, 20 May 2010 10:50:41 -0500
>>> Anthony Liguori<anthony@codemonkey.ws>   wrote:
>>>
>>>
>>>        
>>>> On 05/20/2010 10:16 AM, Paolo Bonzini wrote:
>>>>
>>>>          
>>>>> On 05/20/2010 03:44 PM, Luiz Capitulino wrote:
>>>>>
>>>>>            
>>>>>>     I think there's another issue in the handling of strings.
>>>>>>
>>>>>>     The spec says that valid unescaped chars are in the following range:
>>>>>>
>>>>>>        unescaped = %x20-21 / %x23-5B / %x5D-10FFFF
>>>>>>
>>>>>>              
>>>> That's a spec bug IMHO.  Tab is %x09.  Surely you can include tabs in
>>>> strings.  Any parser that didn't accept that would be broken.
>>>>
>>>>          
>>>    Honestly, I had the impression this should be encoded as: %x5C %x74, but
>>> if you're right, wouldn't this be true for other sequences as well?
>>>
>>>        
>> I don't think most reasonable clients are going to quote tabs as '\t'.
>>      
>   That would be a bug, wouldn't it?
>    

Tabs are valid in JavaScript strings and I don't think it's reasonable 
to expect that a valid JavaScript string is not a valid JSON string.

Regards,

Anthony Liguori