[whatwg] HTML5 named entity ≫ and ≪

[Ilhan Y.]

By the way, can we have Unicode names (HTML names) for Mercury, Sun,
Earth and other planets. They are used by many astronomers on the
internet.


On Wed, Dec 14, 2011 at 7:18 PM, Mike Samuel <mikesamuel at gmail.com> wrote:
> The table in section 12.5 (
> http://www.whatwg.org/specs/web-apps/current-work/multipage/named-character-references.html
> ) says
>> GT;    U+0003E        >
>> Gt;    U+0226B        ≫
>> gt;    U+0003E        >
>> GT     U+0003E        >
>> gt     U+0003E        >
>
> which I believe means that ">", ">","&GT", and "&gt" all encode
> ">" but "≫" encodes U+226B MUCH GREATER-THAN.
>
> http://svn.whatwg.org/webapps/entities-unicode.inc includes these but
> the entities-legacy.inc does not.
>
> Similarly
>
>> Lt;    U+0226A        ≪
>
> This is a potential source of confusion for naive HTML entity decoders
> fall-back to case-insensitive matching when there is no mapping for a
> given entity name.
>
> MathML already has other succinct mappings for U+226A (≪) and
> U+226B (≫).  Could HTML5 avoid confusion by deprecating ≪ and
> ≫ in favor of ≪ and ≫ or remove them entirely?
>
> http://www.google.com/codesearch#search/&q=&Gt;%20file:.html$%20case:yes&type=cs
> shows four files using "≫", 2 of which treat it as synonymous with ">".