Reducing the files to search using grep

[iqbalansari]

Hi,

Thanks for this great tool.

I was wondering if you have considered speeding it up further by reducing the files that elisp-refs needs to actually search using something grep/zgrep. The idea is use grep to find out files where the symbol requested occurs (in whatever form) and them as a second step apply elisp-refs's semantic search only on those (limited) set of files.

If this seems a good idea to you, I can try implementing it

Thanks