55 lines
2.4 KiB
Markdown
55 lines
2.4 KiB
Markdown
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## Registers
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- [User-defined registers](#user-defined-registers)
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- [Default registers](#default-registers)
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- [Special registers](#special-registers)
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In Helix, registers are storage locations for text and other data, such as the
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result of a search. Registers can be used to cut, copy, and paste text, similar
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to the clipboard in other text editors. Usage is similar to Vim, with `"` being
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used to select a register.
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### User-defined registers
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Helix allows you to create your own named registers for storing text, for
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example:
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- `"ay` - Yank the current selection to register `a`.
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- `"op` - Paste the text in register `o` after the selection.
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If a register is selected before invoking a change or delete command, the selection will be stored in the register and the action will be carried out:
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- `"hc` - Store the selection in register `h` and then change it (delete and enter insert mode).
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- `"md` - Store the selection in register `m` and delete it.
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### Default registers
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Commands that use registers, like yank (`y`), use a default register if none is specified.
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These registers are used as defaults:
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| Register character | Contains |
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| --- | --- |
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| `/` | Last search |
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| `:` | Last executed command |
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| `"` | Last yanked text |
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| `@` | Last recorded macro |
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### Special registers
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Some registers have special behavior when read from and written to.
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| Register character | When read | When written |
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| --- | --- | --- |
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| `_` | No values are returned | All values are discarded |
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| `#` | Selection indices (first selection is `1`, second is `2`, etc.) | This register is not writable |
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| `.` | Contents of the current selections | This register is not writable |
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| `%` | Name of the current file | This register is not writable |
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| `+` | Reads from the system clipboard | Joins and yanks to the system clipboard |
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| `*` | Reads from the primary clipboard | Joins and yanks to the primary clipboard |
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When yanking multiple selections to the clipboard registers, the selections
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are joined with newlines. Pasting from these registers will paste multiple
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selections if the clipboard was last yanked to by the Helix session. Otherwise
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the clipboard contents are pasted as one selection.
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