Update bindings + luasnip config

lua/snippets/c-cpp.lua

@@ -0,0 +1,24 @@
+print 'c-cpp init'
+ls.add_snippets('c', {
+  s('fn', {
+    i(1, 'void'),
+    t ' ',
+    i(2, 'func_name'),
+    t '(',
+    i(3),
+    t ') ',
+    t '{ ',
+    i(4, '...'),
+    t ' }',
+  }),
+  s('test', {
+    t 'printf("',
+    i(1),
+    t '");',
+  }),
+})
+ls.filetype_extend('cpp', { 'c' })
+-- Return false to invalidate cache entry for require()
+-- This is so sourcing snippets/init.lua also "reloads" this file
+-- https://stackoverflow.com/questions/72242451/sourcing-nvim-init-does-not-source-required-lua-files
+return false

lua/snippets/common.lua

@@ -0,0 +1,27 @@
+ls = require 'luasnip'
+s = ls.snippet
+sn = ls.snippet_node
+isn = ls.indent_snippet_node
+t = ls.text_node
+i = ls.insert_node
+f = ls.function_node
+c = ls.choice_node
+d = ls.dynamic_node
+r = ls.restore_node
+events = require 'luasnip.util.events'
+ai = require 'luasnip.nodes.absolute_indexer'
+extras = require 'luasnip.extras'
+l = extras.lambda
+rep = extras.rep
+p = extras.partial
+m = extras.match
+n = extras.nonempty
+dl = extras.dynamic_lambda
+fmt = require('luasnip.extras.fmt').fmt
+fmta = require('luasnip.extras.fmt').fmta
+conds = require 'luasnip.extras.expand_conditions'
+postfix = require('luasnip.extras.postfix').postfix
+types = require 'luasnip.util.types'
+parse = require('luasnip.util.parser').parse_snippet
+ms = ls.multi_snippet
+k = require('luasnip.nodes.key_indexer').new_key

lua/snippets/init.lua

@@ -0,0 +1,4 @@
+print 'init.lua init'
+require 'snippets.common'
+require 'snippets.lua'
+require 'snippets.c-cpp'

lua/snippets/lua.lua

@@ -0,0 +1,19 @@
+ls.add_snippets('lua', {
+  s('func', {
+    t 'function() ',
+    i(1),
+    t ' end',
+  }),
+
+  s('if', {
+    t 'if ',
+    i(1, 'true'),
+    t ' then ',
+    i(2),
+    t ' end',
+  }),
+})
+-- Return false to invalidate cache entry for require()
+-- This is so sourcing snippets/init.lua also "reloads" this file
+-- https://stackoverflow.com/questions/72242451/sourcing-nvim-init-does-not-source-required-lua-files
+return false