;; XXX: should do compile-time and load-time check before loading
;; "localhook". But, it is difficult since "localhook" is
;; already loaded via "install" at compile-time. any idea?
- (require 'localhook)
- ))
+ (require 'localhook)))
-(eval-when-compile
- (condition-case nil
- (require 'edebug)
- (error
- (defmacro def-edebug-spec (symbol spec)
- (` (put (quote (, symbol)) 'edebug-form-spec (quote (, spec)))))
- ))
- (require 'static)
- )
+;;; `eval-when-compile' is defined in "poe-18" under v18 with old compiler.
+(eval-when-compile (require 'static))
+
+;; imported from emacs-20.3/lisp/emacs-lisp/edebug.el.
+;; `def-edebug-spec' is an autoloaded macro in v19 and later.
+(defmacro-maybe def-edebug-spec (symbol spec)
+ "Set the edebug-form-spec property of SYMBOL according to SPEC.
+Both SYMBOL and SPEC are unevaluated. The SPEC can be 0, t, a symbol
+\(naming a function\), or a list."
+ (` (put (quote (, symbol)) 'edebug-form-spec (quote (, spec)))))
(def-edebug-spec defun-maybe defun)
(def-edebug-spec defmacro-maybe defmacro)
(def-edebug-spec defsubst-maybe defun)
+;;; Emacs 20.1 emulation
+
+;; imported from emacs-20.3/lisp/subr.el.
+(defmacro-maybe when (cond &rest body)
+ "If COND yields non-nil, do BODY, else return nil."
+ (list 'if cond (cons 'progn body)))
+;; (def-edebug-spec when (&rest form))
+
+;; imported from emacs-20.3/lisp/subr.el.
+(defmacro-maybe unless (cond &rest body)
+ "If COND yields nil, do BODY, else return nil."
+ (cons 'if (cons cond (cons nil body))))
+;; (def-edebug-spec unless (&rest form))
+
;;; @ Emacs 19.23 emulation
;;;
(set-buffer (window-buffer (minibuffer-window)))
(current-column)))
+
;;; @ Emacs 19.29 emulation
;;;
(substring file 0 (match-beginning 0)))
filename))))
+
;;; @ Emacs 19.30 emulation
;;;
;;;
;; imported from emacs-20.3/lisp/subr.el.
-(defmacro-maybe when (cond &rest body)
- "If COND yields non-nil, do BODY, else return nil."
- (list 'if cond (cons 'progn body)))
-
-;; imported from emacs-20.3/lisp/subr.el.
-(defmacro-maybe unless (cond &rest body)
- "If COND yields nil, do BODY, else return nil."
- (cons 'if (cons cond (cons nil body))))
-
-;; imported from emacs-20.3/lisp/subr.el.
(defsubst-maybe caar (x)
"Return the car of the car of X."
(car (car x)))
start (match-end 0)))
(nreverse (cons (substring string start) parts))))
+;; emulating char-before of Emacs 20.
+(static-condition-case nil
+ ;; compile-time check.
+ (progn
+ ;; XXX: this file is already loaded at compile-time,
+ ;; so this test will always success.
+ (char-before)
+ ;; If our definition is found at compile-time, signal an error.
+ ;; XXX: should signal more specific error.
+ (if (get 'char-before 'defun-maybe)
+ (error "")))
+ (wrong-number-of-arguments ; Mule 1.*, 2.*.
+ ;; load-time check.
+ (or (fboundp 'si:char-before)
+ (progn
+ (fset 'si:char-before (symbol-function 'char-before))
+ (put 'char-before 'defun-maybe t)
+ ;; takes IGNORED for backward compatibility.
+ (defun char-before (&optional pos ignored)
+ "\
+Return character in current buffer preceding position POS.
+POS is an integer or a buffer pointer.
+If POS is out of range, the value is nil."
+ (si:char-before (or pos (point)))))))
+ (void-function ; non-Mule.
+ ;; load-time check.
+ (defun-maybe char-before (&optional pos)
+ "\
+Return character in current buffer preceding position POS.
+POS is an integer or a buffer pointer.
+If POS is out of range, the value is nil."
+ (if pos
+ (save-excursion
+ (and (= (goto-char pos) (point))
+ (not (bobp))
+ (preceding-char)))
+ (and (not (bobp))
+ (preceding-char)))))
+ (error ; found our definition at compile-time.
+ ;; load-time check.
+ (condition-case nil
+ (char-before)
+ (wrong-number-of-arguments ; Mule 1.*, 2.*.
+ (or (fboundp 'si:char-before)
+ (progn
+ (fset 'si:char-before (symbol-function 'char-before))
+ (put 'char-before 'defun-maybe t)
+ ;; takes IGNORED for backward compatibility.
+ (defun char-before (&optional pos ignored)
+ "\
+Return character in current buffer preceding position POS.
+POS is an integer or a buffer pointer.
+If POS is out of range, the value is nil."
+ (si:char-before (or pos (point)))))))
+ (void-function ; non-Mule.
+ (defun-maybe char-before (&optional pos)
+ "\
+Return character in current buffer preceding position POS.
+POS is an integer or a buffer pointer.
+If POS is out of range, the value is nil."
+ (if pos
+ (save-excursion
+ (and (= (goto-char pos) (point))
+ (not (bobp))
+ (preceding-char)))
+ (and (not (bobp))
+ (preceding-char))))))))
+
+;; emulating char-after of Emacs 20.
+(static-condition-case nil
+ ;; compile-time check.
+ (progn
+ ;; XXX: this file is already loaded at compile-time,
+ ;; so this test will always success.
+ (char-after)
+ ;; If our definition is found at compile-time, signal an error.
+ ;; XXX: should signal more specific error.
+ (if (get 'char-after 'defun-maybe)
+ (error "")))
+ (wrong-number-of-arguments ; v18, v19
+ ;; load-time check.
+ (or (fboundp 'si:char-after)
+ (progn
+ (fset 'si:char-after (symbol-function 'char-after))
+ (put 'char-after 'defun-maybe t)
+ (defun char-after (&optional pos)
+ "\
+Return character in current buffer at position POS.
+POS is an integer or a buffer pointer.
+If POS is out of range, the value is nil."
+ (si:char-after (or pos (point)))))))
+ (void-function ; NEVER happen?
+ ;; load-time check.
+ (defun-maybe char-after (&optional pos)
+ "\
+Return character in current buffer at position POS.
+POS is an integer or a buffer pointer.
+If POS is out of range, the value is nil."
+ (if pos
+ (save-excursion
+ (and (= (goto-char pos) (point))
+ (not (eobp))
+ (following-char)))
+ (and (not (eobp))
+ (following-char)))))
+ (error ; found our definition at compile-time.
+ ;; load-time check.
+ (condition-case nil
+ (char-after)
+ (wrong-number-of-arguments ; v18, v19
+ (or (fboundp 'si:char-after)
+ (progn
+ (fset 'si:char-after (symbol-function 'char-after))
+ (put 'char-after 'defun-maybe t)
+ (defun char-after (&optional pos)
+ "\
+Return character in current buffer at position POS.
+POS is an integer or a buffer pointer.
+If POS is out of range, the value is nil."
+ (si:char-after (or pos (point)))))))
+ (void-function ; NEVER happen?
+ (defun-maybe char-after (&optional pos)
+ "\
+Return character in current buffer at position POS.
+POS is an integer or a buffer pointer.
+If POS is out of range, the value is nil."
+ (if pos
+ (save-excursion
+ (and (= (goto-char pos) (point))
+ (not (eobp))
+ (following-char)))
+ (and (not (eobp))
+ (following-char))))))))
+
;;; @ Emacs 20.3 emulation
;;;
or a symbol such as 'clear. [XEmacs emulating function]"
ch)
- (defun-maybe event-to-character (event)
+ (defsubst-maybe event-to-character (event)
"Return the character approximation to the given event object.
If the event isn't a keypress, this returns nil.
\[XEmacs emulating function]"
(if base
(logior base (car (cdr mask)))
)))))
- ((integerp event) event)
- ))
+ ((integerp event) event)))
)
projects / elisp / apel.git / blobdiff