Add paredit setup for edn-mode

Like clojure-mode, edn-mode needs to coax paredit to auto-pair curly braces.

Author: grzm

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## master (unreleased)
 
+* Add edn-paredit-setup to allow paredit to auto-pair curly braces
+
 ## 5.22.0 (2026-03-03)
 
 ### New features

clojure-mode.el

@@ -3490,6 +3490,17 @@ With universal argument \\[universal-argument], act on the \"top-level\" form."
 Only exposes data-appropriate commands: alignment, keyword-string
 toggle, collection conversion, and #_ toggle.")
 
+
+(defun edn-paredit-setup (&optional keymap)
+  "Make \"paredit-mode\" play nice with `edn-mode'.
+
+If an optional KEYMAP is passed the changes are applied to it,
+instead of to `edn-mode-map'."
+  (when (>= paredit-version 21)
+    (let ((keymap (or keymap edn-mode-map)))
+      (define-key keymap "{" #'paredit-open-curly)
+      (define-key keymap "}" #'paredit-close-curly))))
+
 ;;;###autoload
 (define-derived-mode edn-mode clojure-mode "EDN"
   "Major mode for editing EDN data files.
@@ -3500,7 +3511,8 @@ indentation appropriate for data structures rather than code.
 
 \\{edn-mode-map}"
   (setq-local clojure-indent-style 'always-align)
-  (setq-local clojure-enable-indent-specs nil))
+  (setq-local clojure-enable-indent-specs nil)
+  (add-hook 'paredit-mode-hook #'edn-paredit-setup))
 
 ;;;###autoload
 (progn