update

after/plugin/luasnip.lua

@@ -1,6 +1,14 @@
 require('luasnip').config.set_config({
     enable_autosnippets = true,
-    store_selection_keys = '<Tab>',
+    store_selection_keys = '<C-s>',
+    history = true,
+    updateevents = 'TextChanged,TextChangedI',
+    delete_check_events = 'TextChanged',
 })
 
-require('luasnip.loaders.from_lua').load({paths = {vim.fn.stdpath('config') .. '/snippets'}})
+require('luasnip.loaders.from_lua').load({ paths = { vim.fn.stdpath('config') .. '/snippets' } })
+
+local keymap = vim.api.nvim_set_keymap
+local opts = { noremap = true, silent = true }
+keymap('i', '<C-j>', '<cmd>lua require("luasnip").jump(1)<cr>', opts)
+keymap('i', '<C-k>', '<cmd>lua require("luasnip").jump(-1)<cr>', opts)

lua/plugins/cmp.lua

@@ -22,8 +22,6 @@ return {
                 ['<Tab>'] = cmp.mapping(function(fallback)
                     if cmp.visible() then
                         cmp.select_next_item()
-                    elseif require('luasnip').expand_or_jumpable() then
-                        require('luasnip').expand_or_jump()
                     else
                         fallback()
                     end
@@ -31,8 +29,6 @@ return {
                 ['<S-Tab>'] = cmp.mapping(function(fallback)
                     if cmp.visible() then
                         cmp.select_prev_item()
-                    elseif require('luasnip').jumpable(-1) then
-                        require('luasnip').jump(-1)
                     else
                         fallback()
                     end

lua/plugins/lsp/init.lua

@@ -65,6 +65,29 @@ local handlers = {
             end,
         })
     end,
+    texlab = function()
+        require('lspconfig').texlab.setup({
+            settings = {
+                texlab = {
+                    build = {
+                        onSave = true,
+                        forwardSearchAfter = true,
+                    },
+                    chktex = {
+                        onOpenAndSave = true,
+                    },
+                    forwardSearch = {
+                        executable = 'zathura',
+                        args = {
+                            '--synctex-forward',
+                            '%l:1:%f',
+                            '%p',
+                        },
+                    },
+                },
+            },
+        })
+    end,
 }
 
 return {