94 lines
2.5 KiB
EmacsLisp
94 lines
2.5 KiB
EmacsLisp
;;; poem-e20_2.el --- poem implementation for Emacs 20.1 and 20.2
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;; Copyright (C) 1996,1997,1998,1999 Free Software Foundation, Inc.
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;; Author: MORIOKA Tomohiko <tomo@m17n.org>
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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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;;; Commentary:
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;; This module requires Emacs 20.1 and 20.2.
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;;; Code:
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;;; @ buffer representation
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;;;
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(defun-maybe set-buffer-multibyte (flag)
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"Set the multibyte flag of the current buffer to FLAG.
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If FLAG is t, this makes the buffer a multibyte buffer.
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If FLAG is nil, this makes the buffer a single-byte buffer.
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The buffer contents remain unchanged as a sequence of bytes
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but the contents viewed as characters do change.
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\[Emacs 20.3 emulating function]"
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(setq enable-multibyte-characters flag)
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)
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;;; @ character
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;;;
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(defalias 'char-length 'char-bytes)
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(defmacro char-next-index (char index)
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"Return index of character succeeding CHAR whose index is INDEX."
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`(+ ,index (char-bytes ,char)))
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;;; @ string
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;;;
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(defalias 'sset 'store-substring)
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(defun string-to-char-list (string)
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"Return a list of which elements are characters in the STRING."
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(let* ((len (length string))
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(i 0)
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l chr)
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(while (< i len)
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(setq chr (sref string i))
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(setq l (cons chr l))
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(setq i (+ i (char-bytes chr)))
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)
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(nreverse l)))
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(defalias 'string-to-int-list 'string-to-char-list)
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(defun looking-at-as-unibyte (regexp)
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"Like `looking-at', but string is regarded as unibyte sequence."
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(let (enable-multibyte-characters)
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(looking-at regexp)))
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;;; @@ obsoleted aliases
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;;;
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;;; You should not use them.
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(defalias 'string-columns 'string-width)
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(make-obsolete 'string-columns 'string-width)
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;;; @ end
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;;;
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(require 'product)
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(product-provide (provide 'poem-e20_2) (require 'apel-ver))
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;;; poem-e20_2.el ends here
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