DinoandConrad Irwin
3d4f488d46
These changes refactor the whitespace handling logic for Vim's change surrounds command (`cs`), making its behavior closely match [tpope/vim-surround](https://github.com/tpope/vim-surround), following [this discussion](https://github.com/zed-industries/zed/issues/38169#issuecomment-3304129461). Zed's current implementation has two main differences when compared to [tpope/vim-surround](https://github.com/tpope/vim-surround): - It only considers whether a single space should be added or removed, instead of all the space that is between the surrounding character and the content - It only takes into consideration the new surrounding characters in order to determine whether to add or remove that space A review of [tpope/vim-surround](https://github.com/tpope/vim-surround)'s behavior reveals these rules for whitespace: * Quote to Quote * Whitespace is never changed * Quote to Bracket * If opening bracket, add one space * If closing bracket, do not add space * Bracket to Bracket * If opening to opening, keep only one space * If opening to closing, remove all space * If closing to opening, add one space * If closing to closing, do not change space * Bracket to Quote * If opening, remove all space * If closing, preserve all space Below is a table with examples for each scenario. A new test has also been added to specifically check the scenarios outlined above, `vim::surrounds::test::test_change_surrounds_vim`. | Type | Before | Command | After | |-------------------|-------------|---------|---------------| | Quote → Quote | `' a '` | `cs'"` | `" a "` | | Quote → Quote | `" a "` | `cs"'` | `' a '` | | Quote → Bracket | `' a '` | `cs'{` | `{ a }` | | Quote → Bracket | `' a '` | `cs'}` | `{ a }` | | Bracket → Bracket | `[ a ]` | `cs[{` | `{ a }` | | Bracket → Bracket | `[ a ]` | `cs[}` | `{a}` | | Bracket → Bracket | `[ a ]` | `cs]{` | `{ a }` | | Bracket → Bracket | `[ a ]` | `cs]}` | `{ a }` | | Bracket → Quote | `[ a ]` | `cs['` | `'a'` | | Bracket → Quote | `[ a ]` | `cs]'` | `' a '` | These changes diverge from [tpope/vim-surround](https://github.com/tpope/vim-surround) when handling newlines. For example, with the following snippet: ```rust fn test_surround() { if 2 > 1 { println!("place cursor here"); } }; ``` Placing the cursor inside the string and running any combination of `cs{[`, `cs{]`, `cs}[`, or `cs}]` would previously remove newline characters. With these changes, using commands like `cs}]` will now preserve newlines. Related to #38169 Closes #39334 Release Notes: - Improved Vim’s change surround command to closely match [tpope/vim-surround](https://github.com/tpope/vim-surround) behavior. --------- Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Zed
Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.
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