* egg-edep.el: Define compatibility functions.

(egg-characterp): New function.

diff --git a/ChangeLog b/ChangeLog
index b2413f2..1ab6fbb 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2001-07-09  Yoshiki Hayashi <yoshiki@xemacs.org>
 
+       * egg-edep.el: Define compatibility functions.
+       (egg-characterp): New function.
+
+2001-07-09  Yoshiki Hayashi <yoshiki@xemacs.org>
+
        * its.el (its-mode-map): Use XEmacs compatible form to define
        keymap.
 

diff --git a/egg-edep.el b/egg-edep.el
index 8a93a96..47a16c9 100644 (file)
--- a/egg-edep.el
+++ b/egg-edep.el
@@ -31,40 +31,57 @@
 ;;; Code:
 
 
-(if (and (fboundp 'set-buffer-multibyte)
-        (subrp (symbol-function 'set-buffer-multibyte)))
-    ;; Emacs 20.3
+(if (featurep 'xemacs)
     (progn
+      (defun egg-characterp (char)
+       (characterp char))
       (defun egg-char-bytes (x) 1)
       (defun egg-charset-bytes (x) 1)
       (defun egg-char-bytes-at (str pos) 1)
       (defun egg-chars-in-period (str pos len) len)
       (defalias 'egg-string-to-vector 'identity)
       (defalias 'egg-string-to-char-at 'aref)
-      )
-  ;; Emacs 20.2
-  (defun set-buffer-multibyte (flag)
-    (setq enable-multibyte-characters flag))
-  (defalias 'string-as-unibyte 'identity)
-  (defalias 'string-as-multibyte 'identity)
-  (defalias 'coding-system-put 'put)
-
-  (defalias 'egg-char-bytes 'char-bytes)
-  (defalias 'egg-charset-bytes 'charset-bytes)
-  (defun egg-char-bytes-at (str pos)
-    (char-bytes (egg-string-to-char-at str pos)))
-  (defun egg-chars-in-period (str pos len)
-    (chars-in-string (substring str pos (+ pos len))))
-  (defalias 'egg-string-to-vector 'string-to-vector)
-  (defalias 'egg-string-to-char-at 'sref)
-  )
+      (unless (fboundp 'set-buffer-multibyte)
+       (defun set-buffer-multibyte (ignored)
+         nil)))
+  (if (and (fboundp 'set-buffer-multibyte)
+          (subrp (symbol-function 'set-buffer-multibyte)))
+      ;; Emacs 20.3
+      (progn
+       (defun egg-char-bytes (x) 1)
+       (defun egg-charset-bytes (x) 1)
+       (defun egg-char-bytes-at (str pos) 1)
+       (defun egg-chars-in-period (str pos len) len)
+       (defalias 'egg-string-to-vector 'identity)
+       (defalias 'egg-string-to-char-at 'aref)
+       )
+    ;; Emacs 20.2
+    (defun set-buffer-multibyte (flag)
+      (setq enable-multibyte-characters flag))
+    (defalias 'string-as-unibyte 'identity)
+    (defalias 'string-as-multibyte 'identity)
+    (defalias 'coding-system-put 'put)
+
+    (defalias 'egg-char-bytes 'char-bytes)
+    (defalias 'egg-charset-bytes 'charset-bytes)
+    (defun egg-char-bytes-at (str pos)
+      (char-bytes (egg-string-to-char-at str pos)))
+    (defun egg-chars-in-period (str pos len)
+      (chars-in-string (substring str pos (+ pos len))))
+    (defalias 'egg-string-to-vector 'string-to-vector)
+    (defalias 'egg-string-to-char-at 'sref)
+    )
+  (defun egg-characterp (char)
+    (numberp char)))
 
 ;; Elisp bug fix
 
 (defun egg-next-single-property-change (pos prop &optional object limit)
-  (if limit
-      (min limit (next-single-property-change pos prop object (1+ limit)))
-    (next-single-property-change pos prop object)))
+  (if (featurep 'xemacs)
+      (next-single-property-change pos prop object limit)
+    (if limit
+       (min limit (next-single-property-change pos prop object (1+ limit)))
+      (next-single-property-change pos prop object))))
 
 (defun egg-string-match-charset (charset string &optional start)
   (let ((cur-ct (category-table))