Problem:
It is repetitive to map multiple keymaps to do the same thing. Here are some
cases where being able to do this would be useful:
-- Visual movement for both j/k and down/up:
vim.keymap.set({ 'n', 'x' }, { 'j', '<Down>' }, 'v:count == 0 ? "gj" : "j"', { expr = true })
vim.keymap.set({ 'n', 'x' }, { 'k', '<Up>' }, 'v:count == 0 ? "gk" : "k"', { expr = true })
-- Map multiple keys to `<Nop>` concisely:
vim.keymap.set({ 'n', 'x' }, { '<Leader>', '<Localleader>', '<CR>' }, '<Nop>')
-- Remove multiple keymaps at once:
vim.keymap.del('n', { 'gri', 'grn', 'grr' })
Solution:
Support the `lhs` of `vim.keymap.set()` and `vim.keymap.del()` being a table, in
the same way that `modes` can be.
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