boltless.me
neovim configuration using rocks.nvim plugin manager
feat(snippets): cleanup, update
+4
-98
+3
-98
lua/snippets/all.lua
+3
-98
lua/snippets/all.lua
···
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local t = ls.text_node
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local c = ls.choice_node
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local r = ls.restore_node
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local fmt = require("luasnip.extras.fmt").fmt
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local function prevent_reexpand(_line_to_cursor, matched_trigger)
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local current_node = ls.session.current_nodes[vim.api.nvim_get_current_buf()]
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if not current_node then
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return true
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end
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local is_same_trigger = current_node.parent.snippet.trigger == matched_trigger
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local current_is_0 = current_node.pos == 0
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if not (is_same_trigger and current_is_0) then
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return true
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end
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local node_pos = current_node:get_buf_position()
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local cur_pos = vim.api.nvim_win_get_cursor(0)
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local same_pos = node_pos[1] + 1 == cur_pos[1] and node_pos[2] == cur_pos[2]
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return not same_pos
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end
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local function create_autopair(open, close)
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return s({
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trig = open .. close,
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wordTrig = false,
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}, {
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t(open),
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c(1, {
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r(1, "content", i(1)),
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sn(nil, { t({ "", "\t" }), r(1, "content", i(1)), t({ "", "" }) }),
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}),
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t(close),
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}, { condition = prevent_reexpand })
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end
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-- stylua: ignore
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ls.add_snippets(nil, {
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create_autopair("(", ")"),
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create_autopair("[", "]"),
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create_autopair("{", "}"),
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create_autopair("(", "),"),
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create_autopair("[", "],"),
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create_autopair("{", "},"),
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s({ trig = '""', wordTrig = false }, { t('"'), i(1), t('"') }, { condition = prevent_reexpand }),
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s({ trig = "''", wordTrig = false }, { t("'"), i(1), t("'") }, { condition = prevent_reexpand }),
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s({ trig = "``", wordTrig = false }, { t("`"), i(1), t("`") }, { condition = prevent_reexpand }),
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})
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-- autopair code from Luasnip's wiki
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local function char_count_same(c1, c2)
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local line = vim.api.nvim_get_current_line()
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-- '%'-escape chars to force explicit match (gsub accepts patterns).
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-- second return value is number of substitutions.
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local _, ct1 = string.gsub(line, "%" .. c1, "")
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local _, ct2 = string.gsub(line, "%" .. c2, "")
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return ct1 == ct2
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end
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local function even_count(ch)
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local line = vim.api.nvim_get_current_line()
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local _, ct = string.gsub(line, ch, "")
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return ct % 2 == 0
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end
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local function neg(fn, ...)
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return not fn(...)
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end
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local function posi()
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return true
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end
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local function part(fn, ...)
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local args = { ... }
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return function()
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return fn(unpack(args))
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end
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end
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-- This makes creation of pair-type snippets easier.
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local function pair(pair_begin, pair_end, expand_func, ...)
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-- triggerd by opening part of pair, wordTrig=false to trigger anywhere.
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-- ... is used to pass any args following the expand_func to it.
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local function pair(pair_begin, pair_end)
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-- autopair implementation inspired by Luasnip wiki
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-- https://github.com/L3MON4D3/LuaSnip/wiki/Cool-Snippets#all---pairs
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return s({ trig = pair_begin, wordTrig = false }, {
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t({ pair_begin }),
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c(1, {
···
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sn(nil, { t({ "", "\t" }), r(1, "content", i(1)), t({ "", "" }) }),
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}),
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t({ pair_end }),
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}, {
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condition = expand_func and part(expand_func, part(..., pair_begin, pair_end)),
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})
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end
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-- FIXME: pair() also doesn't work bc of this case:
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-- ```
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-- vim.schedule(function (|)
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-- end)
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-- ```
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-- here, I get unwanted autopair (|))
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ls.add_snippets(nil, {
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pair("(", ")", neg, char_count_same),
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pair("{", "}", neg, char_count_same),
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pair("[", "]", neg, char_count_same),
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pair("<", ">", neg, char_count_same),
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pair("'", "'", neg, even_count),
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pair('"', '"', neg, even_count),
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pair("`", "`", neg, even_count),
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})
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ls.add_snippets("all", {
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pair("(", ")"),