~/.ctags.d/janet.ctags -- for indexing top-level things in janet code -- usage: `ctags -R <dir>` or for emacs, `ctags -e -R <dir>` -- sorry, no destructuring support

janet.ctags

--exclude=.git
--langdef=Janet
--langmap=Janet:.janet
--regex-janet=/^\([ \t]*def[ \t]+([^0-9:#][^ \t\[{(]+)/\1/D/
--regex-janet=/^\([ \t]*def-[ \t]+([^0-9:#][^ \t\[{(]+)/\1/d/
--regex-janet=/^\([ \t]*defglobal[ \t]+([^0-9:#][^ \t\[{(]+)/\1/g/
--regex-janet=/^\([ \t]*defmacro[ \t]+([^0-9:#][^ \t\[{(]+)/\1/M/
--regex-janet=/^\([ \t]*defmacro-[ \t]+([^0-9:#][^ \t\[{(]+)/\1/m/
--regex-janet=/^\([ \t]*defn[ \t]+([^0-9:#][^ \t\[{(]+)/\1/N/
--regex-janet=/^\([ \t]*defn-[ \t]+([^0-9:#][^ \t\[{(]+)/\1/n/
--regex-janet=/^\([ \t]*var[ \t]+([^0-9:#][^ \t\[{(]+)/\1/V/
--regex-janet=/^\([ \t]*var-[ \t]+([^0-9:#][^ \t\[{(]+)/\1/v/
--regex-janet=/^\([ \t]*varfn[ \t]+([^0-9:#][^ \t\[{(]+)/\1/R/
--regex-janet=/^\([ \t]*varglobal[ \t]+([^0-9:#][^ \t\[{(]+)/\1/G/

Thanks for mentioning vim-gutentags. I'd seen it before but not set it up.

FWIW, idk-janet currently works only with Janet's source code (so only this repository). It's not likely to be useful for any other repository.

I tried but didn't make much progress on something that works for typical janet projects (like those that are meant to be installed with jpm). There are limits to what one can pull off statically with a reasonable amount of effort when there is stuff like this. The flexibility of Janet doesn't make creating tooling for it any easier (^^;