Vi-Mode Feature: Atomic unified commands for ChangeInside/DeleteInside #874
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…t::ResetSelection
…d yield mode change from visual to insert/normal
deephbz
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…e/YankInside(to be added): - added thorough unittests to emulate standard Vi behavior. - handle nested brackets but not nested quotes, alinged with Vi behavior
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Prelude
I enjoy so much using nushell. It has potential becoming the object-oriented standard shell on Unix! I depend on Vi a lot so I'm excited to contribute to continue Nushell's Vi mode!
Note this PR is on top of PR #867 so reviewers you could start review from the last commit .
Problems Solved
Change/Delete inside a pair (quotes, brackets, etc.) are not atomic action: The previous implementation does cut/delete by two actions: left contents to the cursor, then right. This doesn't play nice with redo/undo and they only put the right part to clip buffer.
Changes Made
Will state following sequence of control flow:
ci(,di") once usingbracket_pair_for.Command::DeleteInsidePair/ChangeInsidePairVi commands are generated. Differentiating Change v.s. Delete is for mode change in Vi.EditCommand::CutInside, a new atomic editor command.cut_insideit will handle nested brackets the same way as in standard Vi.Misc
This is related to #849 but that's for change inside word while this PR focuses on change inside quotes/brackets.