TODO

Bugs
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Rewrite to use multiprocessing.Proces instead of Pool to reduce
fd-leak-until-GC during tests

Emacs ff-find-*-file mode doesnt work in non-GUI environment
[curses UI being async is the core issue]

"filter_text" : "Øfd" --> wont work in most places

curses UI doesn't know when the terminal resized.

--skip-ui-if-exact opens gui even if in non-gui editor in emacs

Features
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- find_based_db_indexer has to split every basename on / and then
  apply every glob against each part. This seems unnecessarily slow.


- Rank files "nearer" to the current file when there are multiple equivalent matches
   e.g.
      foo/tracing/overlay.js
      foo/shared/cr/js/overlay.js
   with cwd=foo/xxx.js
      no boost

   with cwd=foo/tracing/xxx.js
      boost foo/tracing/overlay.js

   with cwd=foo/shared/cr/xxx.js
      boost foo/shared/cr/overlay.js

  Possibly, ignore extension during this resolution step. E.g.
      test_utils.js  from shared/tracing
      typically hits ../../../...../test_utils.cc but
      also there is a test_utils.js in the same folder.

- Try out Goog codesearch-style trigraph-based indexes for fuzzy matching

- rwh::ddu -> use ctags to do fuzzy search for ddu on the files matching rwh

- Add fuzziness to dir matching and ranking?

- Reduce memory footprint

- Right click to ignore an object in open dialog

- Warning bar if search() truncated

- emacs ffap-alist support

- qo-modded ff-find-*-file should catch things like foo.cc -> foo_unittest.cc or foo_test.py

- Dont use extensions in raw index; fix those up afterward.