bug#22241: 25.0.50; etags Ruby parser problems

[Dmitry Gutov]

On 01/23/2016 11:48 PM, Eli Zaretskii wrote:

> > ^[ \t]([A-Z][a-z0-9_])[ \t]*=[ \t]*

                        ^ I missed a * there.

> > ? Then record the first group, and simply don't look at what's being
> > assigned.
>
> That's possible, but is it good enough?  Does the above regexp
> necessarily mean it's a constant?

I think so. The important point is that its name begins with a capital 
letter.

And we should probably recognize assignments like these:

ModuleExample::CONSTANT = 5

The qualified name "ModuleExample::CONSTANT" if at the top level, 
unqualified name is "CONSTANT". When inside classes, modules or methods, 
only record the unqualified name; maybe disregard these assignments when 
inside methods altogether.

Thanks in advance.