1 | ;;; poem.el --- Emulate latest MULE features; -*-byte-compile-dynamic: t;-*- |
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2 | |
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3 | ;; Copyright (C) 1998,1999 Free Software Foundation, Inc. |
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4 | |
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5 | ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp> |
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6 | ;; Keywords: emulation, compatibility, Mule |
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7 | |
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8 | ;; This file is part of APEL (A Portable Emacs Library). |
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9 | |
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10 | ;; This program is free software; you can redistribute it and/or |
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11 | ;; modify it under the terms of the GNU General Public License as |
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12 | ;; published by the Free Software Foundation; either version 2, or (at |
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13 | ;; your option) any later version. |
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14 | |
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15 | ;; This program is distributed in the hope that it will be useful, but |
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16 | ;; WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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18 | ;; General Public License for more details. |
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19 | |
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20 | ;; You should have received a copy of the GNU General Public License |
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21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
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22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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23 | ;; Boston, MA 02111-1307, USA. |
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24 | |
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25 | ;;; Code: |
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26 | |
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27 | (require 'pces) |
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28 | |
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29 | (cond ((featurep 'mule) |
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30 | (cond ((featurep 'xemacs) |
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31 | (require 'poem-xm) |
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32 | ) |
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33 | ((>= emacs-major-version 20) |
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34 | (require 'poem-e20) |
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35 | ) |
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36 | (t |
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37 | ;; for MULE 1.* and 2.* |
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38 | (require 'poem-om) |
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39 | )) |
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40 | ) |
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41 | ((boundp 'NEMACS) |
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42 | ;; for Nemacs and Nepoch |
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43 | (require 'poem-nemacs) |
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44 | ) |
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45 | (t |
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46 | (require 'poem-ltn1) |
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47 | )) |
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48 | |
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49 | |
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50 | ;;; @ Emacs 20.3 emulation |
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51 | ;;; |
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52 | |
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53 | (defsubst-maybe string-as-unibyte (string) |
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54 | "Return a unibyte string with the same individual bytes as STRING. |
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55 | If STRING is unibyte, the result is STRING itself. |
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56 | \[Emacs 20.3 emulating macro]" |
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57 | string) |
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58 | |
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59 | (defsubst-maybe string-as-multibyte (string) |
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60 | "Return a multibyte string with the same individual bytes as STRING. |
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61 | If STRING is multibyte, the result is STRING itself. |
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62 | \[Emacs 20.3 emulating macro]" |
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63 | string) |
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64 | |
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65 | (defun-maybe charset-after (&optional pos) |
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66 | "Return charset of a character in current buffer at position POS. |
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67 | If POS is nil, it defauls to the current point. |
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68 | If POS is out of range, the value is nil. |
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69 | \[Emacs 20.3 emulating function]" |
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70 | (char-charset (char-after pos)) |
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71 | ) |
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72 | |
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73 | ;;; @ XEmacs-mule emulation |
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74 | ;;; |
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75 | |
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76 | (defalias-maybe 'char-int 'identity) |
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77 | |
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78 | (defalias-maybe 'int-char 'identity) |
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79 | |
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80 | (defalias-maybe 'characterp 'integerp) |
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81 | |
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82 | (defalias-maybe 'char-or-char-int-p 'integerp) |
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83 | |
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84 | (defun-maybe char-octet (ch &optional n) |
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85 | "Return the octet numbered N (should be 0 or 1) of char CH. |
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86 | N defaults to 0 if omitted. [XEmacs-mule emulating function]" |
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87 | (or (nth (if n |
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88 | (1+ n) |
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89 | 1) |
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90 | (split-char ch)) |
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91 | 0)) |
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92 | |
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93 | |
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94 | ;;; @ end |
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95 | ;;; |
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96 | |
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97 | (require 'product) |
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98 | (product-provide (provide 'poem) (require 'apel-ver)) |
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99 | |
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100 | ;;; poem.el ends here |
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