[Fontconfig] Support emoji fonts

[Akira TAGOH]

Well, you may misunderstood my question. let me rephrase. the question is,
is a font required to contain all of them to say "our fonts support emoji"
or to indicate that in fontconfig? and how many emoji fonts has supported
all of them at this moment? in other words, if a font is more or less
missing them, it won't be recognized as emoji-aware.
I don't see any mention about it there at least. .orth files in fontconfig
doesn't contain all of Unicode code points which is used in those languages
because some of them isn't often used and may not be implemented for
priority etc.

On Wed, Sep 7, 2016 at 8:30 PM, Guo Yunhe <guoyunhebrave at gmail.com> wrote:

> Here is the official define of emoji characters. (Opening this page may
> hang your browser for a while!!!) http://unicode.org/emoji/
> charts/full-emoji-list.html
>
> Hope it would be helpful.
> 在 2016年09月07日 14:21, Akira TAGOH 写道:
>
> The problem on that idea is how to figure out what the minimal coverage in
> emoji block. at this point, the minimal glyph coverage for langs are
> defined in fc-lang/*.orth and cache files contains lang property only which
> fonts satisfies the coverage for. if there are any specs defining a must or
> an optional to have, that may be helpful otherwise we may need to think
> about another idea for that.
>
> maybe good to have a property in a cache to indicate if a font has an
> emoji or not, and we could leave the way to use it to applications perhaps.
>
> On Wed, Sep 7, 2016 at 4:28 PM, Guo Yunhe <guoyunhebrave at gmail.com> wrote:
>
>> Hi, I recently studied some emoji fonts. These emoji fonts have
>> fontconfig difficulties when packaging. They try to set the font as default
>> emoji font but do not affect others. Usually the font has a separated
>> configure file.
>>
>> <match>
>>   <test name="family">
>>     <string>sans-serif</string>
>>   </test>
>>   <edit binding="strong" name="family">
>>     <string>Nimbus Sans L</string>
>>     <string>EmojiOne Color</string>
>>   </edit>
>> </match>
>>
>> However, this will affect sans-serif font settings of other font packages
>> or users' setting, because the package do not know which sans-serif font
>> users want to use.
>>
>> I suggest maybe we can map the Unicode emoji block as test condition.
>> Just like when we set a Japanese font, it won't affect English and Arabic
>> fonts.
>>
>> <match>
>>   <test name="family">
>>     <string>sans-serif</string>
>>   </test>
>>   <test name="lang">
>>     <string>emoji</string>
>>   </test>
>>   <edit binding="strong" name="family">
>>     <string>EmojiOne Color</string>
>>   </edit>
>> </match>
>>
>>
>>
>> --
>> Guo Yunhe
>> _______________________________________________
>> Fontconfig mailing list
>> Fontconfig at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/fontconfig
>>
>
>
>
> --
> Akira TAGOH
>
>
> --
> Guo Yunhe
>



-- 
Akira TAGOH
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