nixeovim/modules/vim/keymap.nix

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{ config, lib, ... }:
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let cfg = config.vim.keymap; in
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{
options.vim.keymap = with lib; {
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_validate = mkOption {
# buffer mode lhs rhs
type = with types; attrsOf (attrsOf (attrsOf (either str attrs)));
visible = false;
internal = true;
readOnly = true;
};
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set = mkOption {
type = with types; listOf keymap;
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default = [ ];
};
};
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config = {
vim.keymap._validate = lib.mkMerge
(map
({ mode, lhs, rhs, buffer, ... }:
let
sourceModes = if builtins.isList mode then mode else [ mode ];
unwrappedModes = lib.unique (lib.flatten (lib.flip map sourceModes (m:
if m == "" then [ m "n" "x" "s" "o" ]
else if m == "!" then [ m "i" "c" ]
else if m == "v" then [ m "x" "s" ]
else if m == "l" then [ m "i" "c" "l" ]
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else m
)));
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buf = lib.optionalString (buffer != null) buffer;
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in
lib.foldl lib.recursiveUpdate { }
(lib.flip map unwrappedModes (m: {
"${buf}"."${m}"."${lhs}" = rhs;
}))
)
cfg.set);
};
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}