1d773bc · helix · git.iko.soy

git.iko.soy/helix

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Implement black hole register (#1165)

1d773bcath35 years ago

book/src/usage.md+2

compare with master

unifiedsplit

@@ -23,8 +23,10 @@ If there is a selected register before invoking a change or delete command, the

23| `/` | Last search |

24| `:` | Last executed command |

25| `"` | Last yanked text |

26+| `_` | Black hole |

27> There is no special register for copying to system clipboard, instead special commands and keybindings are provided. See the [keymap](keymap.md#space-mode) for the specifics.

28> There is no special register for copying to system clipboard, instead special commands and keybindings are provided. See the [keymap](keymap.md#space-mode) for the specifics.

29+> The black hole register works as a no-op register, meaning no data will be written to / read from it.

29## Surround

31## Surround

helix-core/src/register.rs+11−3

@@ -15,7 +15,11 @@ impl Register {

15 }

17 pub fn new_with_values(name: char, values: Vec<String>) -> Self {

18+ if name == '_' {

19+ Self::new(name)

20+ } else {

18− Self { name, values }

21+ Self { name, values }

22+ }

19 }

23 }

21 pub const fn name(&self) -> char {

25 pub const fn name(&self) -> char {

@@ -27,11 +31,15 @@ impl Register {

27 }

31 }

29 pub fn write(&mut self, values: Vec<String>) {

33 pub fn write(&mut self, values: Vec<String>) {

34+ if self.name != '_' {

30− self.values = values;

35+ self.values = values;

36+ }

31 }

37 }

33 pub fn push(&mut self, value: String) {

39 pub fn push(&mut self, value: String) {

40+ if self.name != '_' {

34− self.values.push(value);

41+ self.values.push(value);

42+ }

35 }

43 }

36}

44}