> It starts with the following list: grep-regexp-alist, gmm-regexp-concat, project-find-regexp,
> shell-dumb-shell-regexp, rmail-secondary-file-regexp, rmail-user-mail-address-regexp,
> tramp-file-name-regexp, whitespace-indentation-regexp, project-or-external-find-regexp... All of which are
> irrelevant to what we search.
Which is why I said elsewhere that without making the candidate
scoring smarter, adding aliases based on namespaces will be much less
useful, perhaps even detrimental.
No, the idea is that you then search for ^regexp- and you get ONLY the functions that start with "regexp-". I don't understand why I'm still explaining this, if I'm missing something please tell me.
> What it should list is https://www.gnu.org/software/emacs/manual/html_node/elisp/Regexp-Search.html, but
> also merged with the Match Data documentation, presented in a much more condensed manner, etc.
The above are _commands_ not functions. The equivalent would be
"C-h a regexp search RET", which does do what you want, I think.
This again gives me a giant list where a majority of what is listed is not what I'd like.