ruby-additional.el

* misc/ruby-additional.el: missing functions in Emacs 24.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36888 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

misc/ruby-additional.el

@@ -0,0 +1,59 @@
+;; missing functions in Emacs 24.
+
+(eval-after-load "\\(\\`\\|/\\)ruby-mode\\.elc?\\(\\.gz\\)?\\'"
+  (progn
+    (define-key ruby-mode-map "\C-c\C-e" 'ruby-insert-end)
+    (define-key ruby-mode-map "\C-c{" 'ruby-toggle-block)
+
+    (defun ruby-insert-end ()
+      (interactive)
+      (if (eq (char-syntax (char-before)) ?w)
+	  (insert " "))
+      (insert "end")
+      (save-excursion
+	(if (eq (char-syntax (char-after)) ?w)
+	    (insert " "))
+	(ruby-indent-line t)
+	(end-of-line)))
+
+    (defun ruby-brace-to-do-end ()
+      (when (looking-at "{")
+	(let ((orig (point)) (end (progn (ruby-forward-sexp) (point))))
+	  (when (eq (char-before) ?\})
+	    (delete-char -1)
+	    (if (eq (char-syntax (char-before)) ?w)
+		(insert " "))
+	    (insert "end")
+	    (if (eq (char-syntax (char-after)) ?w)
+		(insert " "))
+	    (goto-char orig)
+	    (delete-char 1)
+	    (if (eq (char-syntax (char-before)) ?w)
+		(insert " "))
+	    (insert "do")
+	    (when (looking-at "\\sw\\||")
+	      (insert " ")
+	      (backward-char))
+	    t))))
+
+    (defun ruby-do-end-to-brace ()
+      (when (and (or (bolp)
+		     (not (memq (char-syntax (char-before)) '(?w ?_))))
+		 (looking-at "\\<do\\(\\s \\|$\\)"))
+	(let ((orig (point)) (end (progn (ruby-forward-sexp) (point))))
+	  (backward-char 3)
+	  (when (looking-at ruby-block-end-re)
+	    (delete-char 3)
+	    (insert "}")
+	    (goto-char orig)
+	    (delete-char 2)
+	    (insert "{")
+	    (if (looking-at "\\s +|")
+		(delete-char (- (match-end 0) (match-beginning 0) 1)))
+	    t))))
+
+    (defun ruby-toggle-block ()
+      (interactive)
+      (or (ruby-brace-to-do-end)
+	  (ruby-do-end-to-brace)))
+    ))