replace cask with eldev

... also fix regex error found by `eldev lint`

Author: rudi

.dir-locals.el

@@ -2,8 +2,6 @@
 ;;; For more information see (info "(emacs) Directory Variables")
 
 ((emacs-lisp-mode
-  (elisp-lint-ignored-validators . ("fill-column"))
   (fill-column . 78)
-  (indent-tabs-mode)))
-
-
+  (indent-tabs-mode)
+  (elisp-lint-ignored-validators . ("fill-column"))))

.emacs/dependencies.el

@@ -2,31 +2,37 @@ name: check
 
 on:
   pull_request:
+    paths-ignore:
+    - '**.md'
   push:
+    paths-ignore:
+    - '**.md'
 
 jobs:
   check:
     runs-on: ubuntu-latest
     strategy:
-      fail-fast: false
       matrix:
         emacs_version:
-          - 26.1
-          - 26.2
-          - 26.3
-          - 27.1
           - 27.2
-          - 28.1
           - 28.2
-          - 29.1
-          - 29.2
           - 29.3
+          - 30.2
     steps:
-    - uses: actions/checkout@v2
-    - uses: purcell/setup-emacs@master
-      with:
-        version: ${{ matrix.emacs_version }}
-    - uses: leotaku/elisp-check@master
+
+    - name: Set up Emacs
+      uses: jcs090218/setup-emacs@master
       with:
-        # check: melpa
-        file: abs-mode.el
+        version: ${{matrix.emacs_version}}
+
+    - name: Install Eldev
+      uses: emacs-eldev/setup-eldev@v1
+
+    - name: Check out the source code
+      uses: actions/checkout@v4
+
+    - name: Test the project
+      run: |
+        eldev -p -dtT doctor
+        # eldev -p -dtT lint # complains about too-long lines, ignoring .dir-locals.el
+        eldev -p -dtT test

.emacs/init.el

@@ -3,8 +3,7 @@
 
 # generated files
 abs-mode-autoloads.el
-.cask
-.emacs/elpa/
-.emacs/quelpa/
-.emacs/.emacs-custom.el
-.elpa
+
+# Added automatically by ‘eldev init’.
+/.eldev
+/Eldev-local

.github/workflows/check.yml

@@ -0,0 +1,8 @@
+; -*- mode: emacs-lisp; lexical-binding: t -*-
+
+(eldev-use-package-archive 'gnu-elpa)
+(eldev-use-package-archive 'melpa)
+(eldev-use-plugin 'autoloads)
+(eldev-use-plugin 'maintainer)
+(setq eldev-main-fileset '("abs-mode.el"))   ; ignore ob-abs.el for now
+(setq eldev-project-main-file "abs-mode.el") ; eldev doctor complains otherwise

.gitignore

@@ -1,11 +1,11 @@
 ;;; abs-mode.el --- Major mode for the modeling language Abs -*- lexical-binding: t; -*-
 
-;; Copyright (C) 2010-2022  Rudolf Schlatte
+;; Copyright (C) 2010-2022, 2026  Rudolf Schlatte
 
 ;; Author: Rudi Schlatte <rudi@constantly.at>
 ;; URL: https://github.com/abstools/abs-mode
 ;; Version: 1.7
-;; Package-Requires: ((emacs "26.1") (erlang "2.8") (maude-mode "0.3") (flymake "1.0") (yasnippet "0.14.0"))
+;; Package-Requires: ((emacs "27.1") (erlang "2.8") (maude-mode "0.3") (flymake "1.0") (yasnippet "0.14.0"))
 ;; Keywords: languages
 
 ;; This program is free software; you can redistribute it and/or modify
@@ -244,7 +244,7 @@ base model.")
    (list (concat "\\(" abs--id-regexp "\\)[[:space:]]*(") 1
          'abs-function-name-face)
    (cons (concat "\\(" abs--id-regexp "\\)") 'abs-variable-name-face)
-   (list "\\<\\(# \w+\\)\\>" 1 'font-lock-warning-face t))
+   (list "\\<\\(# \\w+\\)\\>" 1 'font-lock-warning-face t))
   "Abs keywords.")
 
 ;;; cc-mode wants different fontification levels, but we only offer one.
@@ -347,7 +347,7 @@ base model.")
 (defvar abs--outline-level (lambda () (1+ (/ (current-indentation) abs-indent))))
 
 (defun abs--read-backend ()
-  (interactive)
+  "Prompt the user to choose a backend."
   (let ((backend-name (completing-read "Backend: " abs--backends nil t nil nil abs-backend)))
     (intern-soft backend-name)))
 ;;; Minimal auto-insert mode support

Cask

@@ -1,6 +1,6 @@
 ;;; ob-abs.el --- org-babel functions for Abs -*- lexical-binding: t; -*-
 
-;; Copyright (C) 2018 Rudolf Schlatte
+;; Copyright (C) 2018, 2026 Rudolf Schlatte
 
 ;; Author: Rudi Schlatte <rudi@constantly.at>
 ;; URL: https://github.com/abstools/abs-mode