Documentation of Ctrlp has example of ignoring folders:
let g:ctrlp_custom_ignore = '\v[\/]\.(git|hg|svn)$'.
And the one that is currently used locally and works (default config files from dotfiles):
let g:ctrlp_custom_ignore = '\.git$\|\.hg$\|\.svn$'
I've got folders _build, node_modules etc. that should be ignored, but having added new folders to the list did not solve my problems and all files still appear in the list of files, that makes Ctrlp almost useless.
My expression looked like this:
let g:ctrlp_custom_ignore = '\.git$\|\.hg$\|\.svn$\|_build$'
What am I doing wrong?