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1 ;;; spell.el --- spelling correction interface for Emacs.
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2
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3 ;; Copyright (C) 1985 Free Software Foundation, Inc.
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4
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5 ;; Maintainer: FSF
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6 ;; Keywords: wp, unix
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; XEmacs is free software; you can redistribute it and/or modify it
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11 ;; under the terms of the GNU General Public License as published by
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12 ;; the Free Software Foundation; either version 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free
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22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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23 ;; 02111-1307, USA.
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24
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25 ;;; Synched up with: FSF 19.34.
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26
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27 ;;; Commentary:
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28
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29 ;; This mode provides an Emacs interface to the UNIX spell(1) program.
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30 ;; Entry points are `spell-buffer', `spell-word', `spell-region' and
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31 ;; `spell-string'. These facilities are documented in the Emacs user's
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32 ;; manual.
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33
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34 ;;; Code:
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35
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36 (defvar spell-command "spell"
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37 "*Command to run the spell program.")
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38
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39 (defvar spell-filter nil
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40 "*Filter function to process text before passing it to spell program.
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41 This function might remove text-processor commands.
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42 nil means don't alter the text before checking it.")
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43
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44 ;;;###autoload
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45 (put 'spell-filter 'risky-local-variable t)
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46
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47 ;;;###autoload
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48 (defun spell-buffer ()
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49 "Check spelling of every word in the buffer.
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50 For each incorrect word, you are asked for the correct spelling
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51 and then put into a query-replace to fix some or all occurrences.
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52 If you do not want to change a word, just give the same word
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53 as its \"correct\" spelling; then the query replace is skipped."
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54 (interactive)
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55 (spell-region (point-min) (point-max) "buffer"))
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56
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57 ;;;###autoload
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58 (defun spell-word ()
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59 "Check spelling of word at or before point.
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60 If it is not correct, ask user for the correct spelling
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61 and `query-replace' the entire buffer to substitute it."
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62 (interactive)
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63 (let (beg end spell-filter)
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64 (save-excursion
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65 (if (not (looking-at "\\<"))
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66 (forward-word -1))
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67 (setq beg (point))
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68 (forward-word 1)
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69 (setq end (point)))
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70 (spell-region beg end (buffer-substring beg end))))
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71
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72 ;;;###autoload
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73 (defun spell-region (start end &optional description)
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74 "Like `spell-buffer' but applies only to region.
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75 Used in a program, applies from START to END.
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76 DESCRIPTION is an optional string naming the unit being checked:
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77 for example, \"word\"."
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78 (interactive "r")
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79 (let ((filter spell-filter)
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80 (buf (get-buffer-create " *temp*")))
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81 (save-excursion
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82 (set-buffer buf)
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83 (widen)
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84 (erase-buffer))
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85 (message "Checking spelling of %s..." (or description "region"))
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86 (if (and (null filter) (= ?\n (char-after (1- end))))
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87 (if (string= "spell" spell-command)
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88 (call-process-region start end "spell" nil buf)
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89 (call-process-region start end shell-file-name
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90 nil buf nil "-c" spell-command))
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91 (let ((oldbuf (current-buffer)))
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92 (save-excursion
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93 (set-buffer buf)
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94 (insert-buffer-substring oldbuf start end)
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95 (or (bolp) (insert ?\n))
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96 (if filter (funcall filter))
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97 (if (string= "spell" spell-command)
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98 (call-process-region (point-min) (point-max) "spell" t buf)
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99 (call-process-region (point-min) (point-max) shell-file-name
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100 t buf nil "-c" spell-command)))))
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101 (message "Checking spelling of %s...%s"
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102 (or description "region")
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103 (if (save-excursion
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104 (set-buffer buf)
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105 (> (buffer-size) 0))
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106 "not correct"
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107 "correct"))
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108 (let (word newword
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109 (case-fold-search t)
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110 (case-replace t))
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111 (while (save-excursion
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112 (set-buffer buf)
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113 (> (buffer-size) 0))
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114 (save-excursion
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115 (set-buffer buf)
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116 (goto-char (point-min))
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117 (setq word (downcase
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118 (buffer-substring (point)
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119 (progn (end-of-line) (point)))))
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120 (forward-char 1)
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121 (delete-region (point-min) (point))
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122 (setq newword
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123 (read-input (concat "`" word
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124 "' not recognized; edit a replacement: ")
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125 word))
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126 (flush-lines (concat "^" (regexp-quote word) "$")))
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127 (if (not (equal word newword))
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128 (progn
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129 (goto-char (point-min))
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130 (query-replace-regexp (concat "\\b" (regexp-quote word) "\\b")
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131 newword)))))))
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132
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133
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134 ;;;###autoload
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135 (defun spell-string (string)
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136 "Check spelling of string supplied as argument."
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137 (interactive "sSpell string: ")
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138 (let ((buf (get-buffer-create " *temp*")))
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139 (save-excursion
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140 (set-buffer buf)
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141 (widen)
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142 (erase-buffer)
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143 (insert string "\n")
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144 (if (string= "spell" spell-command)
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145 (call-process-region (point-min) (point-max) "spell"
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146 t t)
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147 (call-process-region (point-min) (point-max) shell-file-name
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148 t t nil "-c" spell-command))
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149 (if (= 0 (buffer-size))
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150 (message "%s is correct" string)
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151 (goto-char (point-min))
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152 (while (search-forward "\n" nil t)
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153 (replace-match " "))
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154 (message "%sincorrect" (buffer-substring 1 (point-max)))))))
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155
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156 ;;; spell.el ends here
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