81 lines
1.8 KiB
Lua
81 lines
1.8 KiB
Lua
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local M = {}
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local ok, ts = pcall(require, "nvim-treesitter.ts_utils")
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if not ok then
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vim.notify "my.tab requires nvim-treesitter to work"
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end
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local pairs = {
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["("] = ")",
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["{"] = "}",
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["["] = "]",
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["<"] = ">",
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["'"] = "'",
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['"'] = '"',
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["`"] = "`",
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}
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local get_new_position = function(node, direction)
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local is_single_line = function()
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local row_start, _, row_end, _ = node:range()
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return row_start == row_end
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end
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local is_wrapped = function()
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local text = vim.treesitter.get_node_text(node, 0)
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local first = string.sub(text, 1, 1)
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local last = string.sub(text, -1)
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return pairs[first] == last
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end
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if is_wrapped() and is_single_line() then
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if direction == "backward" then
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return node:start()
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end
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return node:end_()
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end
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end
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--- @param direction string The direction of the tab ('forward' | 'backward')
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--- @return nil
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M.tab = function(direction)
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-- Normal tab action
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local tab_action
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if direction == "forward" then
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tab_action = function()
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local codes = vim.api.nvim_replace_termcodes("<Tab>", true, true, true)
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vim.api.nvim_call_function("feedkeys", { codes, "n" })
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end
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else
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tab_action = function()
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local codes = vim.api.nvim_replace_termcodes("<S-Tab>", true, true, true)
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vim.api.nvim_call_function("feedkeys", { codes, "n" })
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end
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end
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local node = ts.get_node_at_cursor()
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if not node or not node:parent() then
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return tab_action()
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end
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local line, col = get_new_position(node, direction)
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if not line then
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return tab_action()
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end
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vim.api.nvim_win_set_cursor(0, { line + 1, col })
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end
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M.forwards = function()
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M.tab "forward"
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end
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M.backwards = function()
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M.tab "backward"
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end
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return M
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