1 files changed, 31 insertions, 0 deletions
diff --git a/pandoc/filters/div-class-to-env.lua b/pandoc/filters/div-class-to-env.lua
new file mode 100644
index 00000000..1a87777b
--- /dev/null
+++ b/pandoc/filters/div-class-to-env.lua
@@ -0,0 +1,31 @@
+--- div-class-to-env.lua – filter to convert classes to LaTeX environments
+---
+--- Copyright: © 2026 Florian Fischer
+--- License:   MIT – see LICENSE file for details
+
+if FORMAT:match('beamer') then
+  function Div(d)
+    -- ignore code blocks which are not of class "env".
+    if not d.classes:includes 'env' then
+      return
+    end
+
+    local env
+    for _, v in ipairs(d.classes) do
+      if v ~= 'env' then
+        env = v
+        break
+      end
+    end
+
+    if not env then
+      return
+    end
+
+    return {
+      pandoc.RawInline('latex', '\\begin{'..env..'}'),
+      d,
+      pandoc.RawInline('latex', '\\end{'..env..'}')
+    }
+  end
+end