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annotate lisp/mule/general-late.el @ 4701:684f0ed6cd4f

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Behave better when #'variable-at-point gives nil, #'custom-variable-prompt. lisp/ChangeLog addition: 2009-09-27 Aidan Kehoe <kehoea@parhasard.net> * cus-edit.el (custom-variable-prompt): nil is a symbol, check that variable-at-point is non-nil before checking if it's a symbol when deciding on the prompt used in this function.
author Aidan Kehoe <kehoea@parhasard.net>
date Sun, 27 Sep 2009 20:37:44 +0100
parents 257b468bf2ca
children 308d34e9f07d
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1 ;;; general-late.el --- General Mule code that needs to be run late when
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2 ;; dumping.
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3 ;; Copyright (C) 2006 Free Software Foundation
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4
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5 ;; Author: Aidan Kehoe
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6
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7 ;; This file is part of XEmacs.
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8
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9 ;; XEmacs is free software; you can redistribute it and/or modify it
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10 ;; under the terms of the GNU General Public License as published by
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11 ;; the Free Software Foundation; either version 2, or (at your option)
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12 ;; any later version.
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13
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14 ;; XEmacs is distributed in the hope that it will be useful, but
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15 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 ;; General Public License for more details.
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18
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19 ;; You should have received a copy of the GNU General Public License
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20 ;; along with XEmacs; see the file COPYING. If not, write to the
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21 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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22 ;; Boston, MA 02110-1301, USA.
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23
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24 ;;; Commentary:
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25
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26 ;;; Code:
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27
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28 ;; The variable is declared in mule-cmds.el; it's initialised here, to give
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29 ;; the language-specific code a chance to create its coding systems.
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30
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31 (setq posix-charset-to-coding-system-hash
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32 (loop
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33 ;; We want both normal and internal coding systems in order
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34 ;; to pick up coding system aliases.
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35 for coding-system in (coding-system-list 'every)
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36 with res = (make-hash-table :test #'equal)
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37 do
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38 (setq coding-system (symbol-name coding-system))
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39 (unless (or (string-match #r"\(-unix\|-mac\|-dos\)$" coding-system)
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40 (string-match #r"^\(internal\|mswindows\)" coding-system))
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41 (puthash
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42 (replace-in-string (downcase coding-system) "[^a-z0-9]" "")
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43 (coding-system-name (intern coding-system)) res))
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44 finally return res)
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45
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46 ;; In a thoughtless act of cultural imperialism, move English, German
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47 ;; and Japanese to the front of language-info-alist to make start-up a
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48 ;; fraction faster for those languages.
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49 language-info-alist
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50 (cons (assoc "Japanese" language-info-alist)
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51 (remassoc "Japanese" language-info-alist))
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52 language-info-alist
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53 (cons (assoc "German" language-info-alist)
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54 (remassoc "German" language-info-alist))
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55 language-info-alist
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56 (cons (assoc "English" language-info-alist)
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57 (remassoc "English" language-info-alist))
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58
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59 ;; Make Installation-string actually reflect the environment at
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60 ;; byte-compile time. (We can't necessarily decode it when version.el
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61 ;; is loaded, since not all the coding systems are available then.)
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62 Installation-string (if-boundp 'Installation-file-coding-system
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63 (decode-coding-string
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64 Installation-string
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65 Installation-file-coding-system)
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66 Installation-string)
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67
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68 ;; This used to be here to convince the byte-compiler to encode the
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69 ;; output file using escape-quoted. This is no longer necessary, but
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70 ;; keeping it here avoids doing the eval-when-compile clause below
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71 ;; twice, which is a significant improvement.
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72 system-type (symbol-value (intern "\u0073ystem-type")))
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73
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74 ;; When this file is being compiled, all the charsets have been loaded, so
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75 ;; we can construct the query-skip-chars-arg string correctly.
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76 (set-unicode-query-skip-chars-args
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77 (eval-when-compile
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78 (when-fboundp 'map-charset-chars
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79 (loop
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80 for charset in (charset-list)
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81 with skip-chars-string = ""
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82 do
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83 (block no-ucs-mapping
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84 (map-charset-chars
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85 #'(lambda (begin end)
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86 (loop
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87 while (and begin (>= end begin))
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88 do
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89 (when (= -1 (char-to-unicode begin))
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90 (return-from no-ucs-mapping))
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91 (setq begin (int-to-char (1+ begin)))))
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92 charset)
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93 (setq skip-chars-string
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94 (concat skip-chars-string
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95 (charset-skip-chars-string charset))))
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96 finally return skip-chars-string)))
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97 unicode-invalid-sequence-regexp-range
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98 (eval-when-compile
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99 (concat (loop
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100 for i from #x80 to #xFF
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101 collect (aref (decode-coding-string (int-char i)
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102 'utf-8) 0)))))
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103
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104 ;; At this point in the dump, all the charsets have been loaded. Now, load
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105 ;; their Unicode mappings.
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106 (if load-unicode-tables-at-dump-time
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107 (let ((data-directory (expand-file-name "etc" source-directory)))
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108 (load-unicode-tables)))
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109
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110 ;;; general-late.el ends here