filename autocompleter: "cnf" matches CreateNewFile.java and create-new-file.py

[sannysanoff]

i enhanced def get_completions in io.py

When working with Java, for example, it's common to type capital letters of name (CNF will match CreateNewFile.java) in filename auto-completion.

I added same in aider, however it handles also snake_case or dashed-names, and also works with all-lowercase inputs, so these matches will work:

cnf == CreateNewFile, create-new-file, createNewFile, create_new_file
CreNF == CreateNewFile, create-new-file, createNewFile, create_new_file
creNF == CreateNewFile, create-new-file, createNewFile, create_new_file

This is only leaf filename completion. This is used in JetBrains products and thus lives in the fingers of multiple programmers.

[jbellis]

is there a performance impact of doing an extra 5x or so checks during autocomplete?

style note: I'd recommend "matches" over "test" for the method name

[CLAassistant]

All committers have signed the CLA.

[sannysanoff]

using the git repo with 2500 java files, I did not notice any slowdown on key repeat rate = 60 repeats / sec, it kept working and filtering fine.

renamed method to 'matches'

[alexanderkjeldaas]

#270 is an old PR with similar intentions. I think it would be great to have a bit more smarts in the auto-completer 👍