Source

apel / poe-xemacs.el

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poe-xemacs.el

-;;; poe-xemacs.el --- poe submodule for XEmacs -*-byte-compile-dynamic: t;-*-
+;;; poe-xemacs.el --- poe submodule for XEmacs
 
 ;; Copyright (C) 1995 Free Software Foundation, Inc.
 ;; Copyright (C) 1995,1996,1997,1998 MORIOKA Tomohiko
 
 ;;; Code:
 
+(require 'pym)
+
+
 ;;; @ color
 ;;;
 
-
-(eval-when-compile
-  (require 'poe))
-
 (defun-maybe set-cursor-color (color-name)
   "Set the text cursor color of the selected frame to COLOR.
 When called interactively, prompt for the name of the color to use."
 
 (condition-case nil
     (require 'overlay)
-  (error (defalias 'make-overlay 'make-extent)
-	 (defalias 'overlayp 'extentp)
-	 (defalias 'overlay-put 'set-extent-property)
-	 (defalias 'overlay-buffer 'extent-buffer)
-	 (defun move-overlay (extent start end &optional buffer)
-	   (set-extent-endpoints extent start end)
-	   )
-	 (defalias 'delete-overlay 'detach-extent)
-	 ))
+  (error
+   (defalias 'make-overlay 'make-extent)
+   (defalias 'overlayp 'extentp)
+   (defalias 'overlay-put 'set-extent-property)
+   (defalias 'overlay-buffer 'extent-buffer)
+   (defun move-overlay (extent start end &optional buffer)
+     (set-extent-endpoints extent start end))
+   (defalias 'delete-overlay 'detach-extent)))
 
 
 ;;; @ dired
 (defun-maybe dired-other-frame (dirname &optional switches)
   "\"Edit\" directory DIRNAME.  Like `dired' but makes a new frame."
   (interactive (dired-read-dir-and-switches "in other frame "))
-  (switch-to-buffer-other-frame (dired-noselect dirname switches))
-  )
+  (switch-to-buffer-other-frame (dired-noselect dirname switches)))
+
+
+;;; @ timer
+;;;
+
+(condition-case nil
+    (require 'timer)
+  (error
+   (require 'itimer)
+   (defun-maybe run-at-time (time repeat function &rest args)
+     (start-itimer (make-temp-name "rat")
+		   `(lambda ()
+		      (,function ,@args))
+		   time repeat))
+   (defalias 'cancel-timer 'delete-itimer)
+   (defun with-timeout-handler (tag)
+     (throw tag 'timeout))
+   (defmacro-maybe with-timeout (list &rest body)
+     (let ((seconds (car list))
+	   (timeout-forms (cdr list)))
+     `(let ((with-timeout-tag (cons nil nil))
+	    with-timeout-value with-timeout-timer)
+	(if (catch with-timeout-tag
+	      (progn
+		(setq with-timeout-timer
+		      (run-at-time ,seconds nil
+				   'with-timeout-handler
+				   with-timeout-tag))
+		(setq with-timeout-value (progn . ,body))
+		nil))
+	    (progn . ,timeout-forms)
+	  (cancel-timer with-timeout-timer)
+	  with-timeout-value))))))
 
 
 ;;; @ to avoid bug of XEmacs 19.14
     ;; This function was imported from Emacs 19.33.
     (defun file-relative-name (filename &optional directory)
       "Convert FILENAME to be relative to DIRECTORY
-(default: default-directory). [poe-xemacs.el]"
+(default: default-directory)."
       (setq filename (expand-file-name filename)
 	    directory (file-name-as-directory
 		       (expand-file-name
 				  filename))
 	  (setq directory (file-name-directory (substring directory 0 -1))
 		ancestor (concat "../" ancestor)))
-	(concat ancestor (substring filename (match-end 0)))))
-    )
-
-
-;;; @ for anything older than XEmacs 20.2
-;;;
-
-;; eval-after-load is not defined in XEmacs but after-load-alist is
-;; usable.  See subr.el in XEmacs.
-
-(defun-maybe eval-after-load (file form)
-  "Arrange that, if FILE is ever loaded, FORM will be run at that time.
-This makes or adds to an entry on `after-load-alist'.
-If FILE is already loaded, evaluate FORM right now.
-It does nothing if FORM is already on the list for FILE.
-FILE should be the name of a library, with no directory name."
-  ;; Make sure there is an element for FILE.
-  (or (assoc file after-load-alist)
-      (setq after-load-alist (cons (list file) after-load-alist)))
-  ;; Add FORM to the element if it isn't there.
-  (let ((elt (assoc file after-load-alist)))
-    (or (member form (cdr elt))
-	(progn
-	  (nconc elt (list form))
-	  ;; If the file has been loaded already, run FORM right away.
-	  (and (assoc file load-history)
-	       (eval form)))))
-  form)
-
-;; (defun-maybe eval-after-load (file form)
-;;   (or (assoc file after-load-alist)
-;;       (setq after-load-alist (cons (list file) after-load-alist)))
-;;   (let ((elt (assoc file after-load-alist)))
-;;     (or (member form (cdr elt))
-;;         (nconc elt (list form))))
-;;   form)
+	(concat ancestor (substring filename (match-end 0))))))
 
 
 ;;; @ Emacs 20.3 emulation
 ;;;
 
 (defalias-maybe 'line-beginning-position 'point-at-bol)
-
 (defalias-maybe 'line-end-position 'point-at-eol)
 
+;;; @ XEmacs 21 emulation
+;;;
+
+;; XEmacs 20.5 and later: (set-extent-properties EXTENT PLIST)
+(defun-maybe set-extent-properties (extent plist)
+  "Change some properties of EXTENT.
+PLIST is a property list.
+For a list of built-in properties, see `set-extent-property'."
+  (while plist
+    (set-extent-property extent (car plist) (cadr plist))
+    (setq plist (cddr plist))))  
 
 ;;; @ end
 ;;;
 
-(provide 'poe-xemacs)
+(require 'product)
+(product-provide (provide 'poe-xemacs) (require 'apel-ver))
 
 ;;; poe-xemacs.el ends here