Hack to customise readline history search.
History search is delegated to a script instead, which receives history lines on stdin and outputs the selected line on stdout.
This relies on https://github.com/lincheney/rl_custom_function
Build the library:
cargo build --releaseYou should now have a .so at ./target/release/librl_custom_isearch.so
Copy bin/rl_custom_isearch
in to your $PATH (or write your own).
The provided script requires fzf
Add to your ~/.inputrc:
$include function rl_custom_isearch /path/to/librl_custom_isearch.so
"\C-r": rl_custom_isearch
"\C-s": rl_custom_isearch
Run something interactive that uses readline, e.g. python:
LD_PRELOAD=/path/to/librl_custom_function.so python... and press control-r.