Re: Small improvements to ruby-mode

[Bozhidar Batsov <bozhidar@batsov.com>]

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On 9 July 2013 20:09, Dmitry Gutov <dgutov@yandex.ru> wrote:

> On 09.07.2013 18:36, Bozhidar Batsov wrote:
>
>> I've noticed two more font look issues (I guess I'm becoming annoying :-)
>> ):
>>
>
> Not really. The novelty of seeing a Ruby user in emacs-devel still hasn't
> worn off. :)
>
> You might want to start filing new reports as bugs, though.


Normally I'd have been doing that from the start, but I'm not extremely
fond of Emacs's "issue tracker". Despite my feelings for it I will start
using it, though.


>
>
>  - ?c, ?x, ?\n, ?\C-\M-d, etc should be font-locked as strings I guess,
>> since from Ruby 1.9 the character literal syntax actually yields strings.
>>
>
> It will be the right thing to do, but handling the backslashes and key
> chords looks kind of complicated.


Yep, the highlighting regexp won't be exactly pretty :-)

>
>
>  - there should be support for the new %I/%i literals from Ruby 2.0 - I
>> guess we should font-lock them as symbols
>>
>
> I guess we should, but it's kind of complicated. The point of using
> percent literals is that you can put any stuff, at all, inside, and the
> only suitable Emacs syntax classes for that are strings and comments.
>
> We should be able to overwrite that highlighting in
> ruby-font-lock-keywords, but I don't see a good way to do that, yet. This
> facility works with regexp-based search, and we need to effectively say
> "highlight from here and till the end of the string literal".

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