initial commit

1 files changed, 41 insertions, 0 deletions

diff --git a/nvim/lua/luasnip-helpers.lua b/nvim/lua/luasnip-helpers.lua
new file mode 100644
index 0000000..e912046
--- /dev/null
+++ b/nvim/lua/luasnip-helpers.lua
@@ -0,0 +1,41 @@
+local n = require("luasnip-nodes")
+local utils = {}
+
+utils.get_visual = function(args, parent)
+  if (#parent.snippet.env.LS_SELECT_RAW > 0) then
+    return n.sn(nil, n.i(1, parent.snippet.env.LS_SELECT_RAW))
+  else  -- If LS_SELECT_RAW is empty, return a blank insert node
+    return n.sn(nil, n.i(1))
+  end
+end
+
+utils.in_mathzone = function()  -- math context detection
+  return vim.fn['vimtex#syntax#in_mathzone']() == 1
+end
+utils.in_text = function()
+  return not utils.in_mathzone()
+end
+utils.in_comment = function()  -- comment detection
+  return vim.fn['vimtex#syntax#in_comment']() == 1
+end
+utils.in_env = function(name)  -- generic environment detection
+    local is_inside = vim.fn['vimtex#env#is_inside'](name)
+    return (is_inside[1] > 0 and is_inside[2] > 0)
+end
+-- A few concrete environments---adapt as needed
+utils.in_equation = function()  -- equation environment detection
+    return utils.in_env('equation')
+end
+utils.in_itemize = function()  -- itemize environment detection
+    return utils.in_env('itemize')
+end
+utils.in_enumerate = function()  -- itemize environment detection
+    return utils.in_env('enumerate')
+end
+utils.in_tikz = function()  -- TikZ picture environment detection
+    return utils.in_env('tikzpicture')
+end
+
+utils.line_begin = require("luasnip.extras.expand_conditions").line_begin
+
+return utils