bug#17057: 24.3.50; [ruby-mode] Font-locking of special global variables like $$ is broken(missing)

[Bozhidar Batsov]

On Monday, March 24, 2014 at 11:12 AM, Dmitry Gutov wrote:

Version: 24.4

On 21.03.2014 16:53, Bozhidar Batsov wrote:

Technically speaking all of those are keywords, not variables. Somewhat

odd __LINE__ and friends are

treated at string literals by the Ruby parser. As all of those evaluate

to some value unlike most other keywords I guess it makes some sense to

font-lock them as variables, but I’d prefer if we used font-locking that

makes their special status more apparent.

Sounds good to me. Does this list look exhaustive to you?

http://www.zenspider.com/Languages/Ruby/QuickRef.html#pre-defined-variables

Yeah, seems that everything important is listed there. Here’s one a bit more extensive list, though:

https://github.com/bbatsov/rubocop/blob/master/lib/rubocop/cop/style/global_vars.rb

It features the JRuby-specific global vars in addition to the standard ones.  

Aside from changing faces, the problems mentioned in this bug should be

fixed now, emacs-24 r116850.

Thanks!