how to grep through a passed filelist

- [x] I have fzf 0.30.0 or above
- [x] I have read through https://github.com/junegunn/fzf.vim/blob/master/README.md
- [x] I have read through https://github.com/junegunn/fzf/blob/master/README-VIM.md
- [x] I have read through the manual page of fzf (`man fzf`)
- [x] I have searched through the existing issues

Hi @nkouevda

inspired by your solution in https://github.com/junegunn/fzf.vim/issues/1496

what I am trying to do is pass a filelist and let fzf search for things in files in that list

Currently have this mapping where i can pass the filelist `:LS ` how do i enhance it to grep in the files in the passed list?

command! -bang -complete=file -nargs=1 LS call fzf#run(fzf#wrap('ls_filelist', {'source': 'bat '}, 0))

Also bonus would be if i can do `:LS -q <> <>`

Currently what is do is

bat filelist | xargs \rg <> -l

which is i want to replace achieve in vim ... with interactive fzf search

TIA

Start with the posted :LS command and its fzf#run/fzf#wrap entry points, then read the linked fzf.vim issue and the referenced README sections. Clarify how a passed file list should feed interactive content search and how the optional -q syntax should work; done means the requested command behavior is documented or reproducible in Vim.

Written by the indexing model from the issue text.