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path: root/helix-view/src/register.rs
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* Add system & primary clipboards as special registersMichael Davis2023-07-31
| | | | | | | | | | | | | | These special registers join and copy the values to the clipboards with '*' corresponding to the system clipboard and '+' to the primary as they are in Vim. This also uses the trick from PR6889 to save the values in the register and re-use them without joining into one value when pasting a value which was yanked and not changed. These registers are not implemented in Kakoune but Kakoune also does not have a built-in clipboard integration. Co-authored-by: CcydtN <51289140+CcydtN@users.noreply.github.com> Co-authored-by: Pascal Kuthe <pascal.kuthe@semimod.de>
* Add the '%' (current filename) registerMichael Davis2023-07-31
| | | | | | | | | | This register also comes from Kakoune. It's read-only and produces the current document's name, defaulting to the scratch buffer name constant. (Also see PR5577.) Co-authored-by: Ivan Tham <pickfire@riseup.net>
* Add '#' and '.' special registersMichael Davis2023-07-31
| | | | | | | | | | | | | | | | | | These come from Kakoune: * '#' is the selection index register. It's read-only and produces the selection index numbers, 1-indexed. * '.' is the selection contents register. It is also read-only and mirrors the contents of the current selections when read. We switch the iterators returned from Selection's `fragments` and `slices` methods to ExactSizeIterators because: * The selection contents register can simply return the fragments iterator. * ExactSizeIterator is already implemented for iterators over Vecs, so it's essentially free. * The `len` method can be useful on its own.
* Refactor Registers to take EditorMichael Davis2023-07-31
This sets up a new Registers type that will allow us to expand support for special registers. (See the child commits.) We start simple with the regular (`Vec<String>`) registers and the simplest special register, the black hole. In the child commits we will expand these match arms with more special registers. The upcoming special registers will need a few things that aren't possible with the current Registers type in helix-core: * Access to the `Editor`. This is only necessary when reading from registers, so the `&Editor` parameter is only added to `Registers::read`. * Returning owned values. Registers in helix-core returns references to the values backed by the `Vec<String>` but future special registers will need to return owned values. We refactor the return value of the read operations to give `Cow<str>`s and iterators over those. * Returning a `Result` for write/push functions. This will be used by the clipboard special registers.