* pces.el: Require `pces-raw' if file-coding feature is not

[elisp/apel.git] / poem.el

diff --git a/poem.el b/poem.el
index 01dad14..f65556d 100644 (file)
--- a/poem.el
+++ b/poem.el
@@ -1,6 +1,6 @@
-;;; poem.el --- Portable Outfit for Emacsen: about MULE API
+;;; poem.el --- Emulate latest MULE features; -*-byte-compile-dynamic: t;-*-
 
-;; Copyright (C) 1998 Free Software Foundation, Inc.
+;; Copyright (C) 1998,1999 Free Software Foundation, Inc.
 
 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
 ;; Keywords: emulation, compatibility, Mule
@@ -24,7 +24,7 @@
 
 ;;; Code:
 
-(require 'poe)
+(require 'pces)
 
 (cond ((featurep 'mule)
        (cond ((featurep 'xemacs)
@@ -50,30 +50,45 @@
 ;;; @ Emacs 20.3 emulation
 ;;;
 
-(defmacro-maybe string-as-unibyte (string)
+(defsubst-maybe string-as-unibyte (string)
   "Return a unibyte string with the same individual bytes as STRING.
 If STRING is unibyte, the result is STRING itself.
 \[Emacs 20.3 emulating macro]"
   string)
 
-(defmacro-maybe string-as-multibyte (string)
+(defsubst-maybe string-as-multibyte (string)
   "Return a multibyte string with the same individual bytes as STRING.
 If STRING is multibyte, the result is STRING itself.
 \[Emacs 20.3 emulating macro]"
   string)
 
+(defun-maybe charset-after (&optional pos)
+  "Return charset of a character in current buffer at position POS.
+If POS is nil, it defauls to the current point.
+If POS is out of range, the value is nil.
+\[Emacs 20.3 emulating function]"
+  (char-charset (char-after pos))
+  )
 
-;;; @ XEmacs 20 emulation
+;;; @ XEmacs-mule emulation
 ;;;
 
-(or (fboundp 'char-int)
-    (fset 'char-int (symbol-function 'identity)))
+(defalias-maybe 'char-int 'identity)
 
-(or (fboundp 'int-char)
-    (fset 'int-char (symbol-function 'identity)))
+(defalias-maybe 'int-char 'identity)
 
-(or (fboundp 'char-or-char-int-p)
-    (fset 'char-or-char-int-p (symbol-function 'integerp)))
+(defalias-maybe 'characterp 'integerp)
+
+(defalias-maybe 'char-or-char-int-p 'integerp)
+
+(defun-maybe char-octet (ch &optional n)
+  "Return the octet numbered N (should be 0 or 1) of char CH.
+N defaults to 0 if omitted. [XEmacs-mule emulating function]"
+  (or (nth (if n
+              (1+ n)
+            1)
+          (split-char ch))
+      0))
 
 
 ;;; @ end