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bug#20926: 25.0.50; Quotation marks always display as hard quotes


From: Artur Malabarba
Subject: bug#20926: 25.0.50; Quotation marks always display as hard quotes
Date: Mon, 29 Jun 2015 16:38:03 +0100

I see, so it was a bug within the bug... :)

2015-06-29 16:32 GMT+01:00 Eli Zaretskii <address@hidden>:
>> Date: Mon, 29 Jun 2015 16:22:49 +0100
>> From: Artur Malabarba <address@hidden>
>> Cc: address@hidden
>>
>> 2015-06-29 16:10 GMT+01:00 Artur Malabarba <address@hidden>:
>> >> Go to that left quotation mark on the decomposition line, and type
>> >> "C-u C-x =".  That should give you a hint about what's going on there.
>>
>> Here's the output of doing that.
>
> I knew how it will look, I wanted _you_ to see it. ;-)
>
> This is the crucial part:
>
>> Composed by the rule:
>> #         v Round
>> (TAB ?” TAB)
>
> That's why this displays differently: it uses a composition rule,
> which makes the display engine take a different path through the code.
>
> This means that there's a hole in our machinery that takes care of
> terminals incapable of displaying these characters: that machinery
> doesn't catch auto-composed characters.
>
> This doesn't explain why you see the original problem, but it should
> explain why "C-u C-x =" shows the Unicode characters nonetheless.





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