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local function has_words_before()
unpack = unpack or table.unpack
local line, col = unpack(vim.api.nvim_win_get_cursor(0))
return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)
[1]:sub(col, col):match("%s") == nil
end
return { 'hrsh7th/nvim-cmp',
requires = {
'danymat/neogen',
'nvim-treesitter/nvim-treesitter',
'lukas-reineke/cmp-under-comparator' -- better results
},
-- suppliers for completions (they require nvim-cmp to be loaded before they are)
deps = {
'hrsh7th/cmp-buffer', -- buffers
'FelipeLema/cmp-async-path', -- path
'hrsh7th/cmp-nvim-lsp', -- lsp
'hrsh7th/cmp-nvim-lsp-signature-help', -- completion information
{ 'L3MON4D3/cmp-luasnip-choice', -- luasnip
requires = 'L3MON4D3/LuaSnip'
}
},
function()
local cmp = require('cmp')
local luasnip = require('luasnip')
local neogen = require('neogen')
cmp.setup {
-- disable when in comments
enabled = function()
local context = require('cmp.config.context')
if vim.api.nvim_get_mode().mode == 'c' then
return true
else
return not context.in_treesitter_capture("comment")
and not context.in_syntax_group("Comment")
end
end,
-- completion sources
sources = cmp.config.sources {
{ name = 'nvim_lsp', priority = 999 },
{ name = 'luasnip_choice', priority = 750 },
{ name = 'buffer', max_item_count = 3 },
{ name = 'async_path', max_item_count = 5 },
{ name = 'neorg' },
{ name = 'nvim_lsp_signature_help' }
},
-- how to sort results
sorting = {
comparators = {
cmp.config.compare.offset,
cmp.config.compare.exact,
cmp.config.compare.score,
require('cmp-under-comparator').under,
cmp.config.compare.kind,
cmp.config.compare.sort_text,
cmp.config.compare.length,
cmp.config.compare.order,
}
},
-- appearance of window
window = {
completion = {
scrollbar = false,
border = 'solid',
winhighlight = "Normal:WinBarNC,FloatBorder:WinBarNC,Search:WinBarNC",
},
documentation = {
border = 'solid',
winhighlight = "Normal:WinBarNC,FloatBorder:WinBarNC,Search:WinBarNC",
}
},
-- position of window
view = {
entries = {
name = 'custom',
selection_order = 'near_cursor'
}
},
-- formatting of content
formatting = {
fields = { 'menu', 'abbr', 'kind' },
format = function(entry, item)
local menu_icon = {
nvim_lsp = 'λ',
nvim_lua = 'v',
calc = '+',
luasnip = '%',
buffer = '@',
path = '#'
}
item.menu = menu_icon[entry.source.name]
return item
end
},
experimental = {
ghost_text = true
},
-- snippet integration
snippet = {
expand = function(args)
luasnip.lsp_expand(args.body)
end
},
-- mappings
mapping = cmp.mapping.preset.insert {
["<Tab>"] = cmp.mapping(function(fallback)
if #cmp.get_entries() == 1 then
cmp.confirm({ select = true })
elseif cmp.visible() then
cmp.select_next_item()
elseif luasnip.expand_or_locally_jumpable() then
luasnip.expand_or_jump()
elseif has_words_before() then
cmp.complete()
if #cmp.get_entries() == 1 then
cmp.confirm({ select = true })
end
elseif neogen.jumpable() then
neogen.jump_next()
else
fallback()
end
end, { "i", "s" }),
["<S-Tab>"] = cmp.mapping(function(fallback)
if cmp.visible() then
cmp.select_prev_item()
elseif luasnip.jumpable(-1) then
luasnip.jump(-1)
elseif neogen.jumpable(-1) then
neogen.jump_prev()
else
fallback()
end
end, { "i", "s" }),
['<CR>'] = cmp.mapping {
i = function(fallback)
if cmp.visible() and cmp.get_active_entry() then
cmp.confirm({ behavior = cmp.ConfirmBehavior.Replace, select = false })
else
fallback()
end
end,
s = cmp.mapping.confirm({ select = true }),
c = cmp.mapping.confirm({ behavior = cmp.ConfirmBehavior.Replace,
select = true }),
},
["<C-u>"] = cmp.mapping.scroll_docs(-4),
["<C-d>"] = cmp.mapping.scroll_docs(4),
['<ESC>'] = cmp.mapping.close(),
["<C-e>"] = cmp.mapping.abort()
}
}
end
}
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