RE: IDE

[Drew Adams]

> > For references, you are supposed to use ID-Utils or something similar,
> > which use a different format of their DB.
> 
> Two different tools, for more or less identical jobs except that one is
> one->many and the other is many->one? (In particular, the hard part
> isn't the data structure, but the parsing.)

What prevents someone from creating a TAGS file that includes
"references" as (additions forms of) "definitions"?  How is
adding references different in principle from adding, say,
handling of defstructs to a program that previously only
handled defuns and defvars?

You can index pretty much anything.  You could presumably
even create a full-text index and write it out as a TAGS
file, if you were up to it.

(But I agree: the hard part is the parsing.  The TAGS file
data structure is not the problem.)