From 97629dca2d464f3ef7ab8f17b8cb8df746e2a3fe Mon Sep 17 00:00:00 2001
From: Thies Lennart Alff <lennart.alff@gmail.com>
Date: Thu, 2 Nov 2023 13:47:26 +0100
Subject: [PATCH] added snippets for latex!

---
 .config/nvim/after/plugin/luasnip.lua      |  6 ++
 .config/nvim/lua/plugins/cmp.lua           |  5 ++
 .config/nvim/lua/plugins/init.lua          |  1 +
 .config/nvim/lua/plugins/lsp/init.lua      | 12 +--
 .config/nvim/snippets/tex/environments.lua | 88 ++++++++++++++++++++++
 5 files changed, 106 insertions(+), 6 deletions(-)
 create mode 100644 .config/nvim/after/plugin/luasnip.lua
 create mode 100644 .config/nvim/snippets/tex/environments.lua

diff --git a/.config/nvim/after/plugin/luasnip.lua b/.config/nvim/after/plugin/luasnip.lua
new file mode 100644
index 0000000..6f9b2b6
--- /dev/null
+++ b/.config/nvim/after/plugin/luasnip.lua
@@ -0,0 +1,6 @@
+require('luasnip').config.set_config({
+    enable_autosnippets = true,
+    store_selection_keys = '<Tab>',
+})
+
+require('luasnip.loaders.from_lua').load({paths = {vim.fn.stdpath('config') .. '/snippets'}})
diff --git a/.config/nvim/lua/plugins/cmp.lua b/.config/nvim/lua/plugins/cmp.lua
index 1b1a55c..0054866 100644
--- a/.config/nvim/lua/plugins/cmp.lua
+++ b/.config/nvim/lua/plugins/cmp.lua
@@ -16,11 +16,14 @@ return {
             sources = {
                 { name = 'nvim_lsp' },
                 { name = 'nvim_lua' },
+                { name = 'luasnip' },
             },
             mapping = cmp.mapping.preset.insert({
                 ['<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
@@ -28,6 +31,8 @@ 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
diff --git a/.config/nvim/lua/plugins/init.lua b/.config/nvim/lua/plugins/init.lua
index 6d1910e..9eca60a 100644
--- a/.config/nvim/lua/plugins/init.lua
+++ b/.config/nvim/lua/plugins/init.lua
@@ -5,6 +5,7 @@ return {
         version = "v2.*",
         build = 'make install_jsregexp',
     },
+    { 'saadparwaiz1/cmp_luasnip' },
     'lewis6991/gitsigns.nvim',
     {
         'nvim-telescope/telescope.nvim',
diff --git a/.config/nvim/lua/plugins/lsp/init.lua b/.config/nvim/lua/plugins/lsp/init.lua
index dc55c72..119eb5c 100644
--- a/.config/nvim/lua/plugins/lsp/init.lua
+++ b/.config/nvim/lua/plugins/lsp/init.lua
@@ -7,12 +7,12 @@
 --    require('cmp_nvim_lsp').default_capabilities()
 --)
 
-vim.api.nvim_create_autocmd('FileType', {
-    pattern = 'tex',
-    callback = function()
-        require('cmp').setup.buffer { sources = {{ name = 'omni' }} }
-    end,
-})
+--vim.api.nvim_create_autocmd('FileType', {
+--    pattern = 'tex',
+--    callback = function()
+--        require('cmp').setup.buffer { sources = {{ name = 'omni' }} }
+--    end,
+--})
 
 vim.api.nvim_create_autocmd('LspAttach', {
     desc = 'LSP actions',
diff --git a/.config/nvim/snippets/tex/environments.lua b/.config/nvim/snippets/tex/environments.lua
new file mode 100644
index 0000000..c610bd3
--- /dev/null
+++ b/.config/nvim/snippets/tex/environments.lua
@@ -0,0 +1,88 @@
+local ls = require('luasnip')
+local s = ls.snippet
+local sn = ls.snippet_node
+local t = ls.text_node
+local i = ls.insert_node
+local f = ls.function_node
+local d = ls.dynamic_node
+local fmt = require('luasnip.extras.fmt').fmt
+local fmta = require('luasnip.extras.fmt').fmta
+local rep = require('luasnip.extras').rep
+
+return {
+    s(
+        {
+            trig = 'env',
+            name = 'Environment',
+            dscr = 'Creates generic \\begin{} \\end{} environment',
+        },
+        fmta(
+            [[
+            \begin{<>}
+                <>
+            \end{<>}
+            ]],
+            {
+                i(1),
+                i(2),
+                rep(1),
+            }
+        )
+    ),
+    s(
+        {
+            trig = 'frame',
+            name = 'Beamer Frame',
+            dscr = 'Frame environment for beamer slides',
+        },
+        fmta(
+            [[
+            \begin{frame}
+                \frametitle{<>}
+                <>
+            \end{frame}
+            ]],
+            {
+                i(1),
+                i(2),
+            }
+        )
+    ),
+    s(
+        {
+            trig = 'frame-fragile',
+            name = 'Frame Fragile',
+            dscr = 'Required for verbatim content like code listings.',
+        },
+        fmta(
+            [[
+            \begin{frame}[fragile]
+                \frametitle{<>}
+                <>
+            \end{frame}
+            ]],
+            {
+                i(1),
+                i(2),
+            }
+        )
+    ),
+    s(
+        {
+            trig = 'noindent',
+            name = 'No Indent',
+            dscr = 'Add no indent instructin for latexindent. Useful for code-blocks.'
+        },
+        fmta(
+            [[
+            % \begin{noindent}
+                <>
+            % \end{noindent}
+            ]]
+            ,
+            {
+                i(1),
+            }
+        )
+    ),
+}