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# Description Add an extension trait `IgnoreCaseExt` to nu_utils which adds some case insensitivity helpers, and use them throughout nu to improve the handling of case insensitivity. Proper case folding is done via unicase, which is already a dependency via mime_guess from nu-command. In actuality a lot of code still does `to_lowercase`, because unicase only provides immediate comparison and doesn't expose a `to_folded_case` yet. And since we do a lot of `contains`/`starts_with`/`ends_with`, it's not sufficient to just have `eq_ignore_case`. But if we get access in the future, this makes us ready to use it with a change in one place. Plus, it's clearer what the purpose is at the call site to call `to_folded_case` instead of `to_lowercase` if it's exclusively for the purpose of case insensitive comparison, even if it just does `to_lowercase` still. # User-Facing Changes - Some commands that were supposed to be case insensitive remained only insensitive to ASCII case (a-z), and now are case insensitive w.r.t. non-ASCII characters as well. # Tests + Formatting - 🟢 `toolkit fmt` - 🟢 `toolkit clippy` - 🟢 `toolkit test` - 🟢 `toolkit test stdlib` --------- Co-authored-by: Stefan Holderbach <sholderbach@users.noreply.github.com>
Nushell REPL
This directory contains the main Nushell REPL (read eval print loop) as part of the CLI portion of Nushell, which creates the nu
binary itself.
Current versions of the nu
binary will use the Nu argument parsing logic to parse the commandline arguments passed to nu
, leaving the logic here to be a thin layer around what the core libraries.