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1 ;;; replace.el --- search and replace commands for XEmacs.
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2
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3 ;; Copyright (C) 1985, 1986, 1987, 1992, 1994 Free Software Foundation, Inc.
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4
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5 ;; This file is part of XEmacs.
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6
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7 ;; XEmacs is free software; you can redistribute it and/or modify it
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8 ;; under the terms of the GNU General Public License as published by
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9 ;; the Free Software Foundation; either version 2, or (at your option)
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10 ;; any later version.
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11
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12 ;; XEmacs is distributed in the hope that it will be useful, but
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13 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 ;; General Public License for more details.
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16
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17 ;; You should have received a copy of the GNU General Public License
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72
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18 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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19 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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20 ;; 02111-1307, USA.
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0
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21
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72
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22 ;;; Synched up with: FSF 19.34 [Partially].
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0
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23
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24 ;;; Commentary:
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25
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26 ;; This package supplies the string and regular-expression replace functions
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27 ;; documented in the XEmacs Reference Manual.
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28
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72
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29 ;; All the gettext calls are for XEmacs I18N3 message catalog support.
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30
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0
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31 ;;; Code:
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32
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173
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33 (defvar case-replace t "\
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34 *Non-nil means `query-replace' should preserve case in replacements.
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35 What this means is that `query-replace' will change the case of the
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36 replacement text so that it matches the text that was replaced.
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37 If this variable is nil, the replacement text will be inserted
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38 exactly as it was specified by the user, irrespective of the case
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39 of the text that was replaced.
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40
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41 Note that this flag has no effect if `case-fold-search' is nil,
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42 or if the replacement text has any uppercase letters in it.")
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43
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44 (defvar query-replace-history nil)
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45
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46 (defvar query-replace-interactive nil
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47 "Non-nil means `query-replace' uses the last search string.
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48 That becomes the \"string to replace\".")
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49
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50 (defun query-replace-read-args (string regexp-flag)
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51 (let (from to)
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52 (if query-replace-interactive
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53 (setq from (car (if regexp-flag regexp-search-ring search-ring)))
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54 (setq from (read-from-minibuffer (format "%s: " (gettext string))
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55 nil nil nil
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56 'query-replace-history)))
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57 (setq to (read-from-minibuffer (format "%s %s with: " (gettext string)
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58 from)
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59 nil nil nil
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60 'query-replace-history))
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61 (list from to current-prefix-arg)))
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62
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63 (defun query-replace (from-string to-string &optional arg)
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64 "Replace some occurrences of FROM-STRING with TO-STRING.
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65 As each match is found, the user must type a character saying
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66 what to do with it. For directions, type \\[help-command] at that time.
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67
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68 If `query-replace-interactive' is non-nil, the last incremental search
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69 string is used as FROM-STRING--you don't have to specify it with the
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70 minibuffer.
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71
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72 Preserves case in each replacement if `case-replace' and `case-fold-search'
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73 are non-nil and FROM-STRING has no uppercase letters.
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74 \(Preserving case means that if the string matched is all caps, or capitalized,
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75 then its replacement is upcased or capitalized.)
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76
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77 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
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78 only matches surrounded by word boundaries.
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79
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80 To customize possible responses, change the \"bindings\" in `query-replace-map'."
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81 (interactive (query-replace-read-args "Query replace" nil))
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82 (perform-replace from-string to-string t nil arg))
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83
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84 (defun query-replace-regexp (regexp to-string &optional arg)
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85 "Replace some things after point matching REGEXP with TO-STRING.
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86 As each match is found, the user must type a character saying
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87 what to do with it. For directions, type \\[help-command] at that time.
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88
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89 If `query-replace-interactive' is non-nil, the last incremental search
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90 regexp is used as REGEXP--you don't have to specify it with the
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91 minibuffer.
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92
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93 Preserves case in each replacement if `case-replace' and `case-fold-search'
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94 are non-nil and REGEXP has no uppercase letters.
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95 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
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96 only matches surrounded by word boundaries.
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97 In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP,
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98 and `\\=\\N' (where N is a digit) stands for
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99 whatever what matched the Nth `\\(...\\)' in REGEXP."
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100 (interactive (query-replace-read-args "Query replace regexp" t))
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101 (perform-replace regexp to-string t t arg))
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102
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103 ;;#### Not patently useful
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104 (defun map-query-replace-regexp (regexp to-strings &optional arg)
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105 "Replace some matches for REGEXP with various strings, in rotation.
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106 The second argument TO-STRINGS contains the replacement strings, separated
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107 by spaces. This command works like `query-replace-regexp' except
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108 that each successive replacement uses the next successive replacement string,
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109 wrapping around from the last such string to the first.
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110
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111 Non-interactively, TO-STRINGS may be a list of replacement strings.
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112
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113 If `query-replace-interactive' is non-nil, the last incremental search
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114 regexp is used as REGEXP--you don't have to specify it with the minibuffer.
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115
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116 A prefix argument N says to use each replacement string N times
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117 before rotating to the next."
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118 (interactive
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119 (let (from to)
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120 (setq from (if query-replace-interactive
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121 (car regexp-search-ring)
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122 (read-from-minibuffer "Map query replace (regexp): "
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123 nil nil nil
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124 'query-replace-history)))
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125 (setq to (read-from-minibuffer
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126 (format "Query replace %s with (space-separated strings): "
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127 from)
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128 nil nil nil
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129 'query-replace-history))
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130 (list from to current-prefix-arg)))
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131 (let (replacements)
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132 (if (listp to-strings)
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133 (setq replacements to-strings)
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134 (while (/= (length to-strings) 0)
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135 (if (string-match " " to-strings)
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136 (setq replacements
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137 (append replacements
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138 (list (substring to-strings 0
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139 (string-match " " to-strings))))
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140 to-strings (substring to-strings
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141 (1+ (string-match " " to-strings))))
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142 (setq replacements (append replacements (list to-strings))
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143 to-strings ""))))
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144 (perform-replace regexp replacements t t nil arg)))
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145
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146 (defun replace-string (from-string to-string &optional delimited)
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147 "Replace occurrences of FROM-STRING with TO-STRING.
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148 Preserve case in each match if `case-replace' and `case-fold-search'
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149 are non-nil and FROM-STRING has no uppercase letters.
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72
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150 \(Preserving case means that if the string matched is all caps, or capitalized,
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151 then its replacement is upcased or capitalized.)
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152
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153 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
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154 only matches surrounded by word boundaries.
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155
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156 If `query-replace-interactive' is non-nil, the last incremental search
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157 string is used as FROM-STRING--you don't have to specify it with the
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158 minibuffer.
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159
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160 This function is usually the wrong thing to use in a Lisp program.
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161 What you probably want is a loop like this:
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162 (while (search-forward FROM-STRING nil t)
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163 (replace-match TO-STRING nil t))
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164 which will run faster and will not set the mark or print anything."
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165 (interactive (query-replace-read-args "Replace string" nil))
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166 (perform-replace from-string to-string nil nil delimited))
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167
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168 (defun replace-regexp (regexp to-string &optional delimited)
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169 "Replace things after point matching REGEXP with TO-STRING.
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170 Preserve case in each match if `case-replace' and `case-fold-search'
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171 are non-nil and REGEXP has no uppercase letters.
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172 \(Preserving case means that if the string matched is all caps, or capitalized,
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173 then its replacement is upcased or capitalized.)
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174
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175 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
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176 only matches surrounded by word boundaries.
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177 In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP,
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178 and `\\=\\N' (where N is a digit) stands for
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179 whatever what matched the Nth `\\(...\\)' in REGEXP.
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180
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181 If `query-replace-interactive' is non-nil, the last incremental search
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182 regexp is used as REGEXP--you don't have to specify it with the minibuffer.
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183
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184 This function is usually the wrong thing to use in a Lisp program.
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185 What you probably want is a loop like this:
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186 (while (re-search-forward REGEXP nil t)
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187 (replace-match TO-STRING nil nil))
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188 which will run faster and will not set the mark or print anything."
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189 (interactive (query-replace-read-args "Replace regexp" t))
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190 (perform-replace regexp to-string nil t delimited))
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191
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192
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193 (defvar regexp-history nil
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194 "History list for some commands that read regular expressions.")
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195
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196 (define-function 'keep-lines 'delete-non-matching-lines)
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197 (defun delete-non-matching-lines (regexp)
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198 "Delete all lines except those containing matches for REGEXP.
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199 A match split across lines preserves all the lines it lies in.
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200 Applies to all lines after point."
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201 (interactive (list (read-from-minibuffer
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202 "Keep lines (containing match for regexp): "
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203 nil nil nil 'regexp-history)))
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204 (save-excursion
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205 (or (bolp) (forward-line 1))
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206 (let ((start (point)))
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207 (while (not (eobp))
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208 ;; Start is first char not preserved by previous match.
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209 (if (not (re-search-forward regexp nil 'move))
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210 (delete-region start (point-max))
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211 (let ((end (save-excursion (goto-char (match-beginning 0))
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212 (beginning-of-line)
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213 (point))))
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214 ;; Now end is first char preserved by the new match.
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215 (if (< start end)
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216 (delete-region start end))))
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217 (setq start (save-excursion (forward-line 1)
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218 (point)))
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219 ;; If the match was empty, avoid matching again at same place.
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220 (and (not (eobp)) (= (match-beginning 0) (match-end 0))
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221 (forward-char 1))))))
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222
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223 (define-function 'flush-lines 'delete-matching-lines)
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224 (defun delete-matching-lines (regexp)
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225 "Delete lines containing matches for REGEXP.
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226 If a match is split across lines, all the lines it lies in are deleted.
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227 Applies to lines after point."
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228 (interactive (list (read-from-minibuffer
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229 "Flush lines (containing match for regexp): "
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230 nil nil nil 'regexp-history)))
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231 (save-excursion
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232 (while (and (not (eobp))
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233 (re-search-forward regexp nil t))
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234 (delete-region (save-excursion (goto-char (match-beginning 0))
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235 (beginning-of-line)
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236 (point))
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237 (progn (forward-line 1) (point))))))
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238
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239 (define-function 'how-many 'count-matches)
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240 (defun count-matches (regexp)
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241 "Print number of matches for REGEXP following point."
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242 (interactive (list (read-from-minibuffer
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243 "How many matches for (regexp): "
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244 nil nil nil 'regexp-history)))
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245 (let ((count 0) opoint)
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246 (save-excursion
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247 (while (and (not (eobp))
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248 (progn (setq opoint (point))
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249 (re-search-forward regexp nil t)))
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250 (if (= opoint (point))
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251 (forward-char 1)
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252 (setq count (1+ count))))
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253 (message "%d occurrences" count))))
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254
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255
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256 (defvar occur-mode-map ())
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257 (if occur-mode-map
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258 ()
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259 (setq occur-mode-map (make-sparse-keymap))
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260 (set-keymap-name occur-mode-map 'occur-mode-map) ; XEmacs
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78
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261 (define-key occur-mode-map 'button2 'occur-mode-mouse-goto) ; XEmacs
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262 (define-key occur-mode-map "\C-c\C-c" 'occur-mode-goto-occurrence)
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263 (define-key occur-mode-map "\C-m" 'occur-mode-goto-occurrence))
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264
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265 (defvar occur-buffer nil)
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266 (defvar occur-nlines nil)
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267 (defvar occur-pos-list nil)
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268
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269 (defun occur-mode ()
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270 "Major mode for output from \\[occur].
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271 \\<occur-mode-map>Move point to one of the items in this buffer, then use
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272 \\[occur-mode-goto-occurrence] to go to the occurrence that the item refers to.
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273 Alternatively, click \\[occur-mode-mouse-goto] on an item to go to it.
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274
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275 \\{occur-mode-map}"
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276 (kill-all-local-variables)
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277 (use-local-map occur-mode-map)
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278 (setq major-mode 'occur-mode)
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279 (setq mode-name (gettext "Occur")) ; XEmacs
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280 (make-local-variable 'occur-buffer)
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281 (make-local-variable 'occur-nlines)
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282 (make-local-variable 'occur-pos-list)
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283 (require 'mode-motion) ; XEmacs
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284 (setq mode-motion-hook 'mode-motion-highlight-line) ; XEmacs
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285 (run-hooks 'occur-mode-hook))
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286
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72
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287 ;; FSF Version of next function:
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288 ; (let (buffer pos)
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289 ; (save-excursion
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290 ; (set-buffer (window-buffer (posn-window (event-end event))))
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291 ; (save-excursion
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292 ; (goto-char (posn-point (event-end event)))
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293 ; (setq pos (occur-mode-find-occurrence))
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294 ; (setq buffer occur-buffer)))
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295 ; (pop-to-buffer buffer)
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296 ; (goto-char (marker-position pos))))
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297
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298 (defun occur-mode-mouse-goto (event)
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2
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299 "Go to the occurrence highlighted by mouse.
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300 This function is only reasonable when bound to a mouse key in the occur buffer"
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301 (interactive "e")
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302 (let ((window-save (selected-window))
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303 (frame-save (selected-frame)))
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304 ;; preserve the window/frame setup
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305 (unwind-protect
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306 (progn
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307 (mouse-set-point event)
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308 (occur-mode-goto-occurrence))
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309 (select-frame frame-save)
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310 (select-window window-save))))
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311
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72
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312 ;; Called occur-mode-find-occurrence in FSF
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313 (defun occur-mode-goto-occurrence ()
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314 "Go to the occurrence the current line describes."
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315 (interactive)
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316 (if (or (null occur-buffer)
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317 (null (buffer-name occur-buffer)))
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318 (progn
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319 (setq occur-buffer nil
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320 occur-pos-list nil)
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321 (error "Buffer in which occurrences were found is deleted")))
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322 (let* ((line-count
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323 (count-lines (point-min)
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324 (save-excursion
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325 (beginning-of-line)
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326 (point))))
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327 (occur-number (save-excursion
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328 (beginning-of-line)
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329 (/ (1- line-count)
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330 (cond ((< occur-nlines 0)
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331 (- 2 occur-nlines))
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332 ((> occur-nlines 0)
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333 (+ 2 (* 2 occur-nlines)))
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334 (t 1)))))
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335 (pos (nth occur-number occur-pos-list))
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336 ;; removed t arg from Bob Weiner, 10/6/95
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337 (window (get-buffer-window occur-buffer))
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338 (occur-source-buffer occur-buffer))
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339 (if (< line-count 1)
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340 (error "No occurrence on this line"))
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341 (or pos
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342 (error "No occurrence on this line"))
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72
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343 ;; XEmacs: don't raise window unless it isn't visible
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0
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344 ;; allow for the possibility that the occur buffer is on another frame
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345 (or (and window
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346 (window-live-p window)
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347 (frame-visible-p (window-frame window))
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348 (set-buffer occur-source-buffer))
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349 (and (pop-to-buffer occur-source-buffer)
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350 (setq window (get-buffer-window occur-source-buffer))))
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351 (goto-char pos)
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352 (set-window-point window pos)))
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353
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354
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355 (defvar list-matching-lines-default-context-lines 0
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356 "*Default number of context lines to include around a `list-matching-lines'
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357 match. A negative number means to include that many lines before the match.
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358 A positive number means to include that many lines both before and after.")
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359
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360 ;; XEmacs addition
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361 ;;; Damn you Jamie, this is utter trash.
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362 (defvar list-matching-lines-whole-buffer t
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363 "If t, occur operates on whole buffer, otherwise occur starts from point.
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72
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364 default is t.")
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0
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365
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366 (define-function 'occur 'list-matching-lines)
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367 (defun list-matching-lines (regexp &optional nlines)
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368 "Show all lines in the current buffer containing a match for REGEXP.
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369
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370 If a match spreads across multiple lines, all those lines are shown.
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371
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372 If variable `list-matching-lines-whole-buffer' is non-nil, the entire buffer is
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373 searched, otherwise search begins at point.
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374
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72
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375 Each line is displayed with NLINES lines before and after, or -NLINES
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376 before if NLINES is negative.
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0
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377 NLINES defaults to `list-matching-lines-default-context-lines'.
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378 Interactively it is the prefix arg.
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379
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380 The lines are shown in a buffer named `*Occur*'.
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381 It serves as a menu to find any of the occurrences in this buffer.
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382 \\[describe-mode] in that buffer will explain how."
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383 (interactive
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72
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384 ;; XEmacs change
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385 (list (let* ((default (or (symbol-near-point)
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386 (and regexp-history
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387 (car regexp-history))))
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388 (minibuffer-history-minimum-string-length 0)
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389 (input
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390 (if default
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391 ;; rewritten for I18N3 snarfing
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392 (read-from-minibuffer
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393 (format "List lines matching regexp (default `%s'): "
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394 default) nil nil nil 'regexp-history)
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395 (read-from-minibuffer
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396 "List lines matching regexp: "
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397 nil nil nil
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398 'regexp-history))))
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399 (if (and (equal input "") default)
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400 (progn
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401 (setq input default)
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402 (setcar regexp-history default)))
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403 ;; clear extra entries
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404 (setcdr regexp-history (delete (car regexp-history)
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405 (cdr regexp-history)))
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406 input)
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407 current-prefix-arg))
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408 (if (equal regexp "")
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409 (error "Must pass non-empty regexp to `list-matching-lines'"))
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410 (setq nlines (if nlines (prefix-numeric-value nlines)
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411 list-matching-lines-default-context-lines))
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412 (let ((first t)
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413 (dir default-directory)
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414 (buffer (current-buffer))
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415 (linenum 1)
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416 (prevpos (point-min))
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72
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417 ;; The rest of this function is very different from FSF.
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418 ;; Presumably that's due to Jamie's misfeature
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0
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419 (final-context-start (make-marker)))
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420 (if (not list-matching-lines-whole-buffer)
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421 (save-excursion
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422 (beginning-of-line)
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423 (setq linenum (1+ (count-lines (point-min) (point))))
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424 (setq prevpos (point))))
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425 (with-output-to-temp-buffer "*Occur*"
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426 (save-excursion
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427 (set-buffer standard-output)
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428 (setq default-directory dir)
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429 ;; We will insert the number of lines, and "lines", later.
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430 ;; #### Needs fixing for I18N3
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431 (let ((print-escape-newlines t))
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432 (insert (format " matching %s in buffer %s.\n"
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433 regexp (buffer-name buffer))))
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434 (occur-mode)
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435 (setq occur-buffer buffer)
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436 (setq occur-nlines nlines)
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437 (setq occur-pos-list ()))
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438 (if (eq buffer standard-output)
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439 (goto-char (point-max)))
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440 (save-excursion
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441 (if list-matching-lines-whole-buffer
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442 (beginning-of-buffer))
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74
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443 (message "Searching for %s ..." regexp)
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0
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444 ;; Find next match, but give up if prev match was at end of buffer.
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445 (while (and (not (= prevpos (point-max)))
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446 (re-search-forward regexp nil t))
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447 (goto-char (match-beginning 0))
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448 (beginning-of-line)
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449 (save-match-data
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450 (setq linenum (+ linenum (count-lines prevpos (point)))))
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451 (setq prevpos (point))
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452 (goto-char (match-end 0))
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453 (let* ((start (save-excursion
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454 (goto-char (match-beginning 0))
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455 (forward-line (if (< nlines 0) nlines (- nlines)))
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456 (point)))
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457 (end (save-excursion
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458 (goto-char (match-end 0))
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459 (if (> nlines 0)
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460 (forward-line (1+ nlines))
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461 (forward-line 1))
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462 (point)))
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463 (tag (format "%5d" linenum))
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464 (empty (make-string (length tag) ?\ ))
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465 tem)
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466 (save-excursion
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467 (setq tem (make-marker))
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468 (set-marker tem (point))
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469 (set-buffer standard-output)
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470 (setq occur-pos-list (cons tem occur-pos-list))
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471 (or first (zerop nlines)
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472 (insert "--------\n"))
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473 (setq first nil)
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474 (insert-buffer-substring buffer start end)
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475 (set-marker final-context-start
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476 (- (point) (- end (match-end 0))))
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477 (backward-char (- end start))
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478 (setq tem (if (< nlines 0) (- nlines) nlines))
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479 (while (> tem 0)
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480 (insert empty ?:)
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481 (forward-line 1)
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482 (setq tem (1- tem)))
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483 (let ((this-linenum linenum))
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484 (while (< (point) final-context-start)
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485 (if (null tag)
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486 (setq tag (format "%5d" this-linenum)))
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487 (insert tag ?:)
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488 ;; FSFmacs -- we handle this using mode-motion-highlight-line, above.
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489 ; (put-text-property (save-excursion
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490 ; (beginning-of-line)
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491 ; (point))
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492 ; (save-excursion
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493 ; (end-of-line)
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494 ; (point))
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495 ; 'mouse-face 'highlight)
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496 (forward-line 1)
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497 (setq tag nil)
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498 (setq this-linenum (1+ this-linenum)))
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499 (while (<= (point) final-context-start)
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500 (insert empty ?:)
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501 (forward-line 1)
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502 (setq this-linenum (1+ this-linenum))))
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503 (while (< tem nlines)
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504 (insert empty ?:)
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505 (forward-line 1)
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506 (setq tem (1+ tem)))
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507 (goto-char (point-max)))
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508 (forward-line 1)))
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509 (set-buffer standard-output)
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510 ;; Put positions in increasing order to go with buffer.
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511 (setq occur-pos-list (nreverse occur-pos-list))
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512 (goto-char (point-min))
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513 (if (= (length occur-pos-list) 1)
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514 (insert "1 line")
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515 (insert (format "%d lines" (length occur-pos-list))))
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516 (if (interactive-p)
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517 (message "%d matching lines." (length occur-pos-list)))))))
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518
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519 ;; It would be nice to use \\[...], but there is no reasonable way
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520 ;; to make that display both SPC and Y.
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72
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521 (defconst query-replace-help
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522 (purecopy
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523 "Type Space or `y' to replace one match, Delete or `n' to skip to next,
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0
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524 RET or `q' to exit, Period to replace one match and exit,
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525 Comma to replace but not move point immediately,
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526 C-r to enter recursive edit (\\[exit-recursive-edit] to get out again),
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527 C-w to delete match and recursive edit,
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528 C-l to clear the frame, redisplay, and offer same replacement again,
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529 ! to replace all remaining matches with no more questions,
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72
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530 ^ to move point back to previous match."
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531 )
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0
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532 "Help message while in query-replace")
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533
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72
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534 (defvar query-replace-map nil
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0
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535 "Keymap that defines the responses to questions in `query-replace'.
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536 The \"bindings\" in this map are not commands; they are answers.
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537 The valid answers include `act', `skip', `act-and-show',
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538 `exit', `act-and-exit', `edit', `delete-and-edit', `recenter',
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539 `automatic', `backup', `exit-prefix', and `help'.")
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540
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72
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541 ;; Why does it seem that ever file has a different method of doing this?
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0
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542 (if query-replace-map
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543 nil
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544 (let ((map (make-sparse-keymap)))
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545 (set-keymap-name map 'query-replace-map)
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546 (define-key map " " 'act)
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547 (define-key map "\d" 'skip)
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548 (define-key map [delete] 'skip)
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549 (define-key map [backspace] 'skip)
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550 (define-key map "y" 'act)
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551 (define-key map "n" 'skip)
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552 (define-key map "Y" 'act)
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553 (define-key map "N" 'skip)
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554 (define-key map "," 'act-and-show)
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555 (define-key map [escape] 'exit)
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556 (define-key map "q" 'exit)
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557 (define-key map [return] 'exit)
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558 (define-key map "." 'act-and-exit)
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559 (define-key map "\C-r" 'edit)
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560 (define-key map "\C-w" 'delete-and-edit)
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561 (define-key map "\C-l" 'recenter)
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562 (define-key map "!" 'automatic)
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563 (define-key map "^" 'backup)
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564 (define-key map [(control h)] 'help) ;; XEmacs change
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565 (define-key map [f1] 'help)
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566 (define-key map [help] 'help)
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567 (define-key map "?" 'help)
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568 (define-key map "\C-g" 'quit)
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569 (define-key map "\C-]" 'quit)
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570 ;FSFmacs (define-key map "\e" 'exit-prefix)
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571 (define-key map [escape] 'exit-prefix)
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572
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573 (setq query-replace-map map)))
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574
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575
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576 (autoload 'isearch-highlight "isearch")
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577
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72
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578 ;; XEmacs
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0
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579 (defun perform-replace-next-event (event)
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580 (if isearch-highlight
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581 (let ((aborted t))
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582 (unwind-protect
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583 (progn
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100
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584 (if (match-beginning 0)
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585 (isearch-highlight (match-beginning 0) (match-end 0)))
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0
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586 (next-command-event event)
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587 (setq aborted nil))
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588 (isearch-dehighlight aborted)))
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589 (next-command-event event)))
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590
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591 (defun perform-replace (from-string replacements
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592 query-flag regexp-flag delimited-flag
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593 &optional repeat-count map)
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594 "Subroutine of `query-replace'. Its complexity handles interactive queries.
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595 Don't use this in your own program unless you want to query and set the mark
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596 just as `query-replace' does. Instead, write a simple loop like this:
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597 (while (re-search-forward \"foo[ \t]+bar\" nil t)
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598 (replace-match \"foobar\" nil nil))
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599 which will run faster and probably do exactly what you want."
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600 (or map (setq map query-replace-map))
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601 (let* ((event (make-event))
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602 (nocasify (not (and case-fold-search case-replace
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72
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603 (string-equal from-string
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604 (downcase from-string)))))
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0
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605 (literal (not regexp-flag))
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606 (search-function (if regexp-flag 're-search-forward 'search-forward))
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607 (search-string from-string)
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608 (real-match-data nil) ; the match data for the current match
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609 (next-replacement nil)
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610 (replacement-index 0)
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611 (keep-going t)
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612 (stack nil)
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613 (next-rotate-count 0)
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614 (replace-count 0)
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615 (lastrepl nil) ;Position after last match considered.
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616 (match-again t)
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617 ;; XEmacs addition
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618 (qr-case-fold-search
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619 (if (and case-fold-search search-caps-disable-folding)
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620 (isearch-no-upper-case-p search-string)
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621 case-fold-search))
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622 (message
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623 (if query-flag
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624 (substitute-command-keys
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625 "Query replacing %s with %s: (\\<query-replace-map>\\[help] for help) "))))
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626 (if (stringp replacements)
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627 (setq next-replacement replacements)
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628 (or repeat-count (setq repeat-count 1)))
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629 (if delimited-flag
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630 (setq search-function 're-search-forward
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631 search-string (concat "\\b"
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632 (if regexp-flag from-string
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633 (regexp-quote from-string))
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634 "\\b")))
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635 (push-mark)
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636 (undo-boundary)
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72
|
637 (unwind-protect
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638 ;; Loop finding occurrences that perhaps should be replaced.
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|
639 (while (and keep-going
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640 (not (eobp))
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641 (let ((case-fold-search qr-case-fold-search))
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642 (funcall search-function search-string nil t))
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643 ;; If the search string matches immediately after
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644 ;; the previous match, but it did not match there
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645 ;; before the replacement was done, ignore the match.
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|
646 (if (or (eq lastrepl (point))
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647 (and regexp-flag
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648 (eq lastrepl (match-beginning 0))
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649 (not match-again)))
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650 (if (eobp)
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651 nil
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652 ;; Don't replace the null string
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653 ;; right after end of previous replacement.
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654 (forward-char 1)
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655 (let ((case-fold-search qr-case-fold-search))
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656 (funcall search-function search-string nil t)))
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657 t))
|
|
0
|
658
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72
|
659 ;; Save the data associated with the real match.
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660 (setq real-match-data (match-data))
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0
|
661
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72
|
662 ;; Before we make the replacement, decide whether the search string
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663 ;; can match again just after this match.
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664 (if regexp-flag
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665 (progn
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666 (setq match-again (looking-at search-string))
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|
|
667 ;; XEmacs addition
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668 (store-match-data real-match-data)))
|
|
|
669 ;; If time for a change, advance to next replacement string.
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|
670 (if (and (listp replacements)
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|
671 (= next-rotate-count replace-count))
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|
672 (progn
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|
673 (setq next-rotate-count
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|
674 (+ next-rotate-count repeat-count))
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|
|
675 (setq next-replacement (nth replacement-index replacements))
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|
676 (setq replacement-index (% (1+ replacement-index) (length replacements)))))
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|
|
677 (if (not query-flag)
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|
678 (progn
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|
|
679 (store-match-data real-match-data)
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|
680 (replace-match next-replacement nocasify literal)
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|
|
681 (setq replace-count (1+ replace-count)))
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|
|
682 (undo-boundary)
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|
|
683 (let ((help-form
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|
684 '(concat (format "Query replacing %s%s with %s.\n\n"
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|
|
685 (if regexp-flag (gettext "regexp ") "")
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686 from-string next-replacement)
|
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|
687 (substitute-command-keys query-replace-help)))
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|
688 done replaced def)
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|
|
689 ;; Loop reading commands until one of them sets done,
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|
|
690 ;; which means it has finished handling this occurrence.
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|
|
691 (while (not done)
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|
|
692 ;; Don't fill up the message log
|
|
|
693 ;; with a bunch of identical messages.
|
|
|
694 ;; XEmacs change
|
|
|
695 (display-message 'prompt
|
|
|
696 (format message from-string next-replacement))
|
|
|
697 (perform-replace-next-event event)
|
|
|
698 (setq def (lookup-key map (vector event)))
|
|
|
699 ;; Restore the match data while we process the command.
|
|
|
700 (store-match-data real-match-data)
|
|
|
701 (cond ((eq def 'help)
|
|
|
702 (with-output-to-temp-buffer (gettext "*Help*")
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|
|
703 (princ (concat
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|
|
704 (format "Query replacing %s%s with %s.\n\n"
|
|
|
705 (if regexp-flag "regexp " "")
|
|
|
706 from-string next-replacement)
|
|
|
707 (substitute-command-keys
|
|
|
708 query-replace-help)))
|
|
0
|
709 (save-excursion
|
|
|
710 (set-buffer standard-output)
|
|
|
711 (help-mode))))
|
|
72
|
712 ((eq def 'exit)
|
|
|
713 (setq keep-going nil)
|
|
|
714 (setq done t))
|
|
|
715 ((eq def 'backup)
|
|
|
716 (if stack
|
|
|
717 (let ((elt (car stack)))
|
|
|
718 (goto-char (car elt))
|
|
|
719 (setq replaced (eq t (cdr elt)))
|
|
|
720 (or replaced
|
|
|
721 (store-match-data (cdr elt)))
|
|
|
722 (setq stack (cdr stack)))
|
|
0
|
723 (message "No previous match")
|
|
|
724 (ding 'no-terminate)
|
|
72
|
725 (sit-for 1)))
|
|
|
726 ((eq def 'act)
|
|
|
727 (or replaced
|
|
|
728 (replace-match next-replacement nocasify literal))
|
|
|
729 (setq done t replaced t))
|
|
|
730 ((eq def 'act-and-exit)
|
|
|
731 (or replaced
|
|
|
732 (replace-match next-replacement nocasify literal))
|
|
|
733 (setq keep-going nil)
|
|
|
734 (setq done t replaced t))
|
|
|
735 ((eq def 'act-and-show)
|
|
|
736 (if (not replaced)
|
|
|
737 (progn
|
|
|
738 (replace-match next-replacement nocasify literal)
|
|
100
|
739 (store-match-data nil)
|
|
72
|
740 (setq replaced t))))
|
|
|
741 ((eq def 'automatic)
|
|
|
742 (or replaced
|
|
|
743 (replace-match next-replacement nocasify literal))
|
|
|
744 (setq done t query-flag nil replaced t))
|
|
|
745 ((eq def 'skip)
|
|
|
746 (setq done t))
|
|
|
747 ((eq def 'recenter)
|
|
|
748 (recenter nil))
|
|
|
749 ((eq def 'edit)
|
|
|
750 (store-match-data
|
|
|
751 (prog1 (match-data)
|
|
|
752 (save-excursion (recursive-edit))))
|
|
|
753 ;; Before we make the replacement,
|
|
|
754 ;; decide whether the search string
|
|
|
755 ;; can match again just after this match.
|
|
|
756 (if regexp-flag
|
|
|
757 (setq match-again (looking-at search-string))))
|
|
|
758 ((eq def 'delete-and-edit)
|
|
|
759 (delete-region (match-beginning 0) (match-end 0))
|
|
|
760 (store-match-data (prog1 (match-data)
|
|
|
761 (save-excursion (recursive-edit))))
|
|
|
762 (setq replaced t))
|
|
|
763 ;; Note: we do not need to treat `exit-prefix'
|
|
|
764 ;; specially here, since we reread
|
|
|
765 ;; any unrecognized character.
|
|
|
766 (t
|
|
|
767 (setq this-command 'mode-exited)
|
|
|
768 (setq keep-going nil)
|
|
|
769 (setq unread-command-events
|
|
|
770 (cons event unread-command-events))
|
|
|
771 (setq done t))))
|
|
|
772 ;; Record previous position for ^ when we move on.
|
|
|
773 ;; Change markers to numbers in the match data
|
|
|
774 ;; since lots of markers slow down editing.
|
|
|
775 (setq stack
|
|
|
776 (cons (cons (point)
|
|
|
777 (or replaced
|
|
|
778 (mapcar
|
|
|
779 #'(lambda (elt)
|
|
|
780 (if (markerp elt)
|
|
|
781 (prog1 (marker-position elt)
|
|
|
782 (set-marker elt nil))
|
|
|
783 elt))
|
|
|
784 (match-data))))
|
|
|
785 stack))
|
|
|
786 (if replaced (setq replace-count (1+ replace-count)))))
|
|
|
787 (setq lastrepl (point)))
|
|
|
788 (replace-dehighlight))
|
|
0
|
789 (or unread-command-events
|
|
|
790 (message "Replaced %d occurrence%s"
|
|
|
791 replace-count
|
|
|
792 (if (= replace-count 1) "" "s")))
|
|
|
793 (and keep-going stack)))
|
|
|
794
|
|
72
|
795 (defvar query-replace-highlight nil
|
|
|
796 "*Non-nil means to highlight words during query replacement.")
|
|
|
797
|
|
|
798 (defvar replace-overlay nil)
|
|
|
799
|
|
|
800 (defun replace-dehighlight ()
|
|
|
801 (and replace-overlay
|
|
|
802 (progn
|
|
|
803 (delete-overlay replace-overlay)
|
|
|
804 (setq replace-overlay nil))))
|
|
0
|
805
|
|
72
|
806 (defun replace-highlight (start end)
|
|
|
807 (and query-replace-highlight
|
|
|
808 (progn
|
|
|
809 (or replace-overlay
|
|
|
810 (progn
|
|
|
811 (setq replace-overlay (make-overlay start end))
|
|
|
812 (overlay-put replace-overlay 'face
|
|
|
813 (if (internal-find-face 'query-replace)
|
|
|
814 'query-replace 'region))))
|
|
|
815 (move-overlay replace-overlay start end (current-buffer)))))
|
|
|
816
|
|
|
817 (defun match-string (num &optional string)
|
|
|
818 "Return string of text matched by last search.
|
|
|
819 NUM specifies which parenthesized expression in the last regexp.
|
|
|
820 Value is nil if NUMth pair didn't match, or there were less than NUM pairs.
|
|
|
821 Zero means the entire text matched by the whole regexp or whole string.
|
|
|
822 STRING should be given if the last search was by `string-match' on STRING."
|
|
|
823 (if (match-beginning num)
|
|
|
824 (if string
|
|
|
825 (substring string (match-beginning num) (match-end num))
|
|
|
826 (buffer-substring (match-beginning num) (match-end num)))))
|
|
0
|
827
|
|
|
828 (defmacro save-match-data (&rest body)
|
|
|
829 "Execute BODY forms, restoring the global value of the match data."
|
|
|
830 (let ((original (make-symbol "match-data")))
|
|
|
831 (list 'let (list (list original '(match-data)))
|
|
|
832 (list 'unwind-protect
|
|
|
833 (cons 'progn body)
|
|
|
834 (list 'store-match-data original)))))
|
|
|
835
|
|
|
836 ;;; replace.el ends here
|
