mirror of
https://github.com/nvim-treesitter/nvim-treesitter.git
synced 2026-07-02 11:36:54 -04:00
38af29a912
- remove buf_state and related code - add get_node_at_cursor() - better incremental selection (code is localized)
119 lines
3.2 KiB
Lua
119 lines
3.2 KiB
Lua
local api = vim.api
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local configs = require'nvim-treesitter.configs'
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local ts_utils = require'nvim-treesitter.ts_utils'
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local parsers = require'nvim-treesitter.parsers'
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local M = {}
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local selections = {}
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local function update_selection(buf, node)
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local start_row, start_col, end_row, end_col = node:range()
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if end_row == vim.fn.line('$') then
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end_col = #vim.fn.getline('$')
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end
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vim.fn.setpos(".", { buf, start_row+1, start_col+1, 0 })
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vim.fn.nvim_exec("normal v", false)
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vim.fn.setpos(".", { buf, end_row+1, end_col+1, 0 })
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end
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function M.init_selection()
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local buf = api.nvim_get_current_buf()
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local node = ts_utils.get_node_at_cursor()
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selections[buf] = { [1] = node }
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update_selection(buf, node)
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end
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local function visual_selection_range()
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local _, csrow, cscol, _ = unpack(vim.fn.getpos("'<"))
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local _, cerow, cecol, _ = unpack(vim.fn.getpos("'>"))
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if csrow < cerow then
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return csrow-1, cscol-1, cerow-1, cecol-1
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else
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return cerow-1, cecol-1, csrow-1, cscol-1
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end
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end
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local function range_matches(node)
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local csrow, cscol, cerow, cecol = visual_selection_range()
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local srow, scol, erow, ecol = node:range()
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return srow == csrow and scol == cscol and erow == cerow and ecol == cecol
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end
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local function select_incremental(get_parent)
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return function()
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local buf = api.nvim_get_current_buf()
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local nodes = selections[buf]
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-- initialize incremental selection with current selection
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if not nodes or #nodes == 0 or not range_matches(nodes[#nodes]) then
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local csrow, cscol, cerow, cecol = visual_selection_range()
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local root = parsers.get_parser().tree:root()
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local node = root:named_descendant_for_range(csrow, cscol, cerow, cecol)
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update_selection(buf, node)
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selections[buf] = { [1] = node }
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return
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end
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node = get_parent(nodes[#nodes])
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if not node then return end
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if node ~= nodes[#nodes] then
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table.insert(nodes, node)
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end
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update_selection(buf, node)
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end
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end
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M.node_incremental = select_incremental(function(node)
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return node:parent() or node
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end)
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M.scope_incremental = select_incremental(function(node)
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return ts_utils.containing_scope(node:parent() or node)
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end)
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function M.node_decremental()
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local buf = api.nvim_get_current_buf()
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local nodes = selections[buf]
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if not nodes or #nodes < 2 then return end
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table.remove(selections[buf])
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local node = nodes[#nodes]
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update_selection(buf, node)
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end
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function M.attach(bufnr)
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local buf = bufnr or api.nvim_get_current_buf()
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local config = configs.get_module('incremental_selection')
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for funcname, mapping in pairs(config.keymaps) do
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local mode
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if funcname == "init_selection" then
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mode = 'n'
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else
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mode = 'v'
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end
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local cmd = string.format(":lua require'nvim-treesitter.incremental_selection'.%s()<CR>", funcname)
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api.nvim_buf_set_keymap(buf, mode, mapping, cmd, { silent = true })
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end
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end
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function M.detach(bufnr)
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local buf = bufnr or api.nvim_get_current_buf()
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local config = configs.get_module('incremental_selection')
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for f, mapping in pairs(config.keymaps) do
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if f == "init_selection" then
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api.nvim_buf_del_keymap(buf, 'n', mapping)
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else
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api.nvim_buf_del_keymap(buf, 'v', mapping)
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end
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end
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end
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return M
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