Update

LuaSnip/tex/matrix.lua

@@ -0,0 +1,137 @@
+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 fmta = require("luasnip.extras.fmt").fmta
+local rep = require("luasnip.extras").rep
+local line_begin = require("luasnip.extras.expand_conditions").line_begin
+
+local tex = require("util.latex")
+
+local get_visual = function(args, parent)
+  if #parent.snippet.env.SELECT_RAW > 0 then
+    return sn(nil, i(1, parent.snippet.env.SELECT_RAW))
+  else -- If SELECT_RAW is empty, return a blank insert node
+    return sn(nil, i(1))
+  end
+end
+
+return {
+  s(
+    { trig = "bmat", snippetType = "autosnippet" },
+    fmta(
+      [[
+      \begin{bmatrix}
+        <>
+      \end{bmatrix}
+      ]],
+      {
+        i(0),
+      }
+    ),
+    { condition = tex.in_mathzone }
+  ),
+  s(
+    { trig = "Bmat", snippetType = "autosnippet" },
+    fmta(
+      [[
+      \begin{Bmatrix}
+        <>
+      \end{Bmatrix}
+      ]],
+      {
+        i(0),
+      }
+    ),
+    { condition = tex.in_mathzone }
+  ),
+  s(
+    { trig = "pmat", snippetType = "autosnippet" },
+    fmta(
+      [[
+      \begin{pmatrix}
+        <>
+      \end{pmatrix}
+      ]],
+      {
+        i(0),
+      }
+    ),
+    { condition = tex.in_mathzone }
+  ),
+  s(
+    { trig = "Vmat", snippetType = "autosnippet" },
+    fmta(
+      [[
+      \begin{Vmatrix}
+        <>
+      \end{Vmatrix}
+      ]],
+      {
+        i(0),
+      }
+    ),
+    { condition = tex.in_mathzone }
+  ),
+  s(
+    { trig = "Bmat", snippetType = "autosnippet" },
+    fmta(
+      [[
+      \Bmat{<>}
+      ]],
+      {
+        i(0),
+      }
+    ),
+    { condition = tex.in_mathzone }
+  ),
+  s(
+    { trig = "dmat", snippetType = "autosnippet" },
+    fmta(
+      [[
+      \bdiagmat{<>}
+      ]],
+      {
+        i(0),
+      }
+    ),
+    { condition = tex.in_mathzone }
+  ),
+  s(
+    { trig = "vmat", snippetType = "autosnippet" },
+    fmta(
+      [[
+      \vmat{<>}
+      ]],
+      {
+        i(0),
+      }
+    ),
+    { condition = tex.in_mathzone }
+  ),
+  s(
+    { trig = "Vmat", snippetType = "autosnippet" },
+    fmta(
+      [[
+      \Vmat{<>}
+      ]],
+      {
+        i(0),
+      }
+    ),
+    { condition = tex.in_mathzone }
+  ),
+  s(
+    { trig = "pma(%a)", regTrig = true, wordTrig = false, snippetType = "autosnippet" },
+    fmta("\\pmat<>{<>}", {
+      f(function(_, snip)
+        return snip.captures[1]
+      end),
+      i(0),
+    }),
+    { condition = tex.in_mathzone }
+  ),
+}