107 lines
2.8 KiB
EmacsLisp
107 lines
2.8 KiB
EmacsLisp
;;; poem.el --- Emulate latest MULE features; -*-byte-compile-dynamic: t;-*-
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;; Copyright (C) 1998,1999 Free Software Foundation, Inc.
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;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
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;; Keywords: emulation, compatibility, Mule
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;; This file is part of APEL (A Portable Emacs Library).
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License as
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;; published by the Free Software Foundation; either version 2, or (at
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;; your option) any later version.
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;; This program is distributed in the hope that it will be useful, but
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;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;; Code:
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(require 'pces)
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(cond ((featurep 'mule)
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(cond ((featurep 'xemacs)
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(require 'poem-xm)
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)
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((>= emacs-major-version 20)
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(require 'poem-e20)
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)
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(t
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;; for MULE 1.* and 2.*
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(require 'poem-om)
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))
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)
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((boundp 'NEMACS)
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;; for Nemacs and Nepoch
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(require 'poem-nemacs)
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)
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(t
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(require 'poem-ltn1)
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))
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;;; @ Emacs 20.3 emulation
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;;;
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(defsubst-maybe string-as-unibyte (string)
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"Return a unibyte string with the same individual bytes as STRING.
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If STRING is unibyte, the result is STRING itself.
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\[Emacs 20.3 emulating macro]"
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string)
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(defsubst-maybe string-as-multibyte (string)
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"Return a multibyte string with the same individual bytes as STRING.
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If STRING is multibyte, the result is STRING itself.
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\[Emacs 20.3 emulating macro]"
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string)
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(defun-maybe charset-after (&optional pos)
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"Return charset of a character in current buffer at position POS.
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If POS is nil, it defaults to the current point.
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If POS is out of range, the value is nil.
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\[Emacs 20.3 emulating function]"
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(char-charset (char-after pos))
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)
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;;; @ XEmacs-mule emulation
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;;;
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(defalias-maybe 'char-int 'identity)
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(defalias-maybe 'int-char 'identity)
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(defalias-maybe 'characterp
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(cond
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((fboundp 'char-valid-p) 'char-valid-p)
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(t 'integerp)))
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(defalias-maybe 'char-or-char-int-p
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(cond
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((fboundp 'char-valid-p) 'char-valid-p)
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(t 'integerp)))
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(defun-maybe char-octet (ch &optional n)
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"Return the octet numbered N (should be 0 or 1) of char CH.
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N defaults to 0 if omitted. [XEmacs-mule emulating function]"
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(or (nth (if n
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(1+ n)
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1)
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(split-char ch))
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0))
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;;; @ end
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;;;
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(require 'product)
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(product-provide (provide 'poem) (require 'apel-ver))
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;;; poem.el ends here
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