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For now I’ve stuck with multi-occur-in-matching-buffers and rgrep, which, while powerful, is still pretty basic I guess.
Eventhough I realize anything more involved than matching a regexp and renaming will need to integrate with CEDET's semantic bovinator, I feel like there is still room for improvement here.
Built-in functions, packages, or custom-code what do you find helpful getting the job done ?
Cheers
In CEDET, there is a symbol reference tool. By default it also uses find/grep in a project to find occurrence of a symbol. It is better to use GNU Global, IDUtils, or CScope instead to create a database in your project. You can then use semantic-symref-symbol which will then use gnu global or whatever to find all the references.
Once in symref list buffer, you can look through the hits. You can then select various hits and perform operations such as symbol rename, or the more powerful, execute macro on all the hits.
While there are more focused commands that could be made, the macro feature allows almost anything to happen for the expert user who understands Emacs keyboard macros well.