[whatwg] Defaulting new image solution to 192dpi
Kornel Lesiński
kornel at geekhood.net
Thu May 17 05:39:05 PDT 2012
On Thu, 17 May 2012 13:20:03 +0100, Julian Reschke <julian.reschke at gmx.de>
wrote:
>> So to future-proof the solution I think:
>>
>> <img src="1x.jpg" srcset="2x.jpg">
>>
>> should be equivalent to:
>>
>> <img src="1x.jpg" srcset="2x.jpg 2x">
>> ...
>
> As far as I can tell, making descriptors optional breaks the syntax (it
> allows comma both in the URI and as a separator between image
> candidates).
Indeed. I'm not sure which solution is the best:
- make descriptors optional only for the last URL (which will work fine
for the case where only the 2x image is supplied)
srcset="a,b" is a single URL
srcset="a, b" is an invalid descriptor for a single URL
srcset="a 1x, b" is two URLs @1x and @2x
- parse trailing comma in URL as a separator and hope no URL scheme needs
it :)
srcset="a,b" is a single URL
srcset="a, b" is two URLs
srcset="a,#, b" is two URLs, first one being "a,#".
- introduce some kind of escaping for commas in the URL part:
srcset="a,b" two URLs
srcset="a\,b" one URL "a,b"
srcset="a\\\, , \,b" two URLs "a\," and ",b"
--
regards, Kornel Lesiński
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