2 files changed, 78 insertions, 1 deletions
diff --git a/lib/doc/jao-org-focus.el b/lib/doc/jao-org-focus.el
index 39c1aa4..a135ff5 100644
--- a/lib/doc/jao-org-focus.el
+++ b/lib/doc/jao-org-focus.el
@@ -141,7 +141,15 @@ With arg, offer to switch to all children, regardless of their parent."
 (define-minor-mode org-focus-child-mode
   "A mode for the children of a focused org buffer."
   :lighter " ◉"
-  :keymap org-focus-mode-map)
+  :keymap org-focus-mode-map
+  (when (and org-focus-child-mode (require 'symbol-overlay nil t))
+    (face-remap-reset-base 'symbol-overlay-default-face)
+    (face-remap-add-relative 'symbol-overlay-default-face 'warning 'underline)
+    (symbol-overlay-mode 1)))
+
+(with-eval-after-load 'symbol-overlay
+  (keymap-set org-focus-mode-map "M-n" 'symbol-overlay-jump-next)
+  (keymap-set org-focus-mode-map "M-p" 'symbol-overlay-jump-prev))
 
 
 (provide 'jao-org-focus)
diff --git a/lib/prog/jao-rust.el b/lib/prog/jao-rust.el
new file mode 100644
index 0000000..9c08e9b
--- /dev/null
+++ b/lib/prog/jao-rust.el
@@ -0,0 +1,69 @@
+;;; jao-rust.el --- Utilities for rust programming   -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2026  Jose Ruiz
+
+;; Author: Jose Ruiz <mail@jao.io>
+;; Keywords: languages
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Code:
+
+(defun jao-rust--root () (project-root (project-current)))
+
+(defun jao-rust-open-cargo ()
+  (interactive)
+  (let ((f (expand-file-name "Cargo.toml" (jao-rust--root))))
+    (when (or (file-exists-p f)
+              (y-or-n-p "No Cargo.toml found. Create? "))
+        (find-file f))))
+
+(defun jao-rust-current-module-name ()
+  (let* ((root (expand-file-name (jao-rust--root)))
+         (current (file-name-sans-extension (buffer-file-name)))
+         (rel (string-replace root "" current)))
+    (thread-last
+      rel
+      (replace-regexp-in-string "^src\\(/bin\\)?/" "")
+      (string-replace "-" "_")
+      (replace-regexp-in-string "/\\(mod\\|lib\\|main\\)$" "")
+      (string-replace "/" "::"))))
+
+(defun jao-rust-buffer-tests ()
+  (save-excursion
+    (goto-char (point-min))
+    (let ((res '()))
+      (while (re-search-forward "#\\[\\(tokio::test\\|test\\|quickcheck\\)" nil t)
+        (forward-line)
+        (when (looking-at "^ *\\(pub\\)?\\( async\\)? fn \\([^(]+\\)(")
+          (push (match-string-no-properties 3) res)))
+      res)))
+
+(defun jao-rust-test-module ()
+  (interactive)
+  (let ((tests (jao-rust-buffer-tests)))
+    (if (seq-empty-p tests)
+        (messages "No tests in this module")
+      (let* ((mod (jao-rust-current-module-name))
+             (tests (mapconcat (lambda (x) (format "%s::tests::%s" mod x)) tests " "))
+             (rustic-test-arguments (format "-- --exact %s" tests)))
+        (rustic-cargo-test)))))
+
+(defun jao-rust-test-workspace ()
+  (interactive)
+  (let ((rustic-test-arguments rustic-default-test-arguments))
+    (rustic-cargo-test)))
+
+(provide 'jao-rust)
+;;; jao-rust.el ends here