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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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18 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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19 ;; Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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20
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21 ;;; Synched up with: FSF 19.30.
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22
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23 ;;; Commentary:
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24
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25 ;; This package supplies the string and regular-expression replace functions
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26 ;; documented in the XEmacs Reference Manual.
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27
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28 ;;; Code:
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29
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30 (defvar case-replace t "\
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31 *Non-nil means `query-replace' should preserve case in replacements.
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32 What this means is that `query-replace' will change the case of the
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33 replacement text so that it matches the text that was replaced.
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34 If this variable is nil, the replacement text will be inserted
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35 exactly as it was specified by the user, irrespective of the case
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36 of the text that was replaced.
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37
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38 Note that this flag has no effect if `case-fold-search' is nil,
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39 or if the replacement text has any uppercase letters in it.")
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40
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41 (defvar query-replace-history nil)
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42
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43 (defvar query-replace-interactive nil
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44 "Non-nil means `query-replace' uses the last search string.
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45 That becomes the \"string to replace\".")
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46
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47 (defun query-replace-read-args (string regexp-flag)
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48 (let (from to)
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49 (if query-replace-interactive
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50 (setq from (car (if regexp-flag regexp-search-ring search-ring)))
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51 (setq from (read-from-minibuffer (format "%s: " (gettext string))
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52 nil nil nil
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53 'query-replace-history)))
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54 (setq to (read-from-minibuffer (format "%s %s with: " (gettext string)
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55 from)
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56 nil nil nil
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57 'query-replace-history))
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58 (list from to current-prefix-arg)))
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59
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60 (defun query-replace (from-string to-string &optional arg)
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61 "Replace some occurrences of FROM-STRING with TO-STRING.
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62 As each match is found, the user must type a character saying
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63 what to do with it. For directions, type \\[help-command] at that time.
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64
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65 If `query-replace-interactive' is non-nil, the last incremental search
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66 string is used as FROM-STRING--you don't have to specify it with the
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67 minibuffer.
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68
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69 Preserves case in each replacement if `case-replace' and `case-fold-search'
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70 are non-nil and FROM-STRING has no uppercase letters.
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71 \(Preserving case means that if the string matched is all caps, or capitalized,
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72 then its replacement is upcased or capitalized.)
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73
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74 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
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75 only matches surrounded by word boundaries.
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76
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77 To customize possible responses, change the \"bindings\" in `query-replace-map'."
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78 (interactive (query-replace-read-args "Query replace" nil))
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79 (perform-replace from-string to-string t nil arg))
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80
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81 (defun query-replace-regexp (regexp to-string &optional arg)
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82 "Replace some things after point matching REGEXP with TO-STRING.
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83 As each match is found, the user must type a character saying
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84 what to do with it. For directions, type \\[help-command] at that time.
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85
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86 If `query-replace-interactive' is non-nil, the last incremental search
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87 regexp is used as REGEXP--you don't have to specify it with the
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88 minibuffer.
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89
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90 Preserves case in each replacement if `case-replace' and `case-fold-search'
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91 are non-nil and REGEXP has no uppercase letters.
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92 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
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93 only matches surrounded by word boundaries.
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94 In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP,
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95 and `\\=\\N' (where N is a digit) stands for
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96 whatever what matched the Nth `\\(...\\)' in REGEXP."
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97 (interactive (query-replace-read-args "Query replace regexp" t))
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98 (perform-replace regexp to-string t t arg))
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99
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100 ;;#### Not patently useful
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101 (defun map-query-replace-regexp (regexp to-strings &optional arg)
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102 "Replace some matches for REGEXP with various strings, in rotation.
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103 The second argument TO-STRINGS contains the replacement strings, separated
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104 by spaces. This command works like `query-replace-regexp' except
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105 that each successive replacement uses the next successive replacement string,
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106 wrapping around from the last such string to the first.
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107
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108 Non-interactively, TO-STRINGS may be a list of replacement strings.
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109
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110 If `query-replace-interactive' is non-nil, the last incremental search
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111 regexp is used as REGEXP--you don't have to specify it with the minibuffer.
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112
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113 A prefix argument N says to use each replacement string N times
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114 before rotating to the next."
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115 (interactive
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116 (let (from to)
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117 (setq from (if query-replace-interactive
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118 (car regexp-search-ring)
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119 (read-from-minibuffer "Map query replace (regexp): "
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120 nil nil nil
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121 'query-replace-history)))
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122 (setq to (read-from-minibuffer
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123 (format "Query replace %s with (space-separated strings): "
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124 from)
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125 nil nil nil
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126 'query-replace-history))
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127 (list from to current-prefix-arg)))
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128 (let (replacements)
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129 (if (listp to-strings)
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130 (setq replacements to-strings)
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131 (while (/= (length to-strings) 0)
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132 (if (string-match " " to-strings)
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133 (setq replacements
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134 (append replacements
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135 (list (substring to-strings 0
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136 (string-match " " to-strings))))
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137 to-strings (substring to-strings
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138 (1+ (string-match " " to-strings))))
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139 (setq replacements (append replacements (list to-strings))
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140 to-strings ""))))
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141 (perform-replace regexp replacements t t nil arg)))
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142
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143 (defun replace-string (from-string to-string &optional delimited)
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144 "Replace occurrences of FROM-STRING with TO-STRING.
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145 Preserve case in each match if `case-replace' and `case-fold-search'
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146 are non-nil and FROM-STRING has no uppercase letters.
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147 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
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148 only matches surrounded by word boundaries.
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149
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150 If `query-replace-interactive' is non-nil, the last incremental search
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151 string is used as FROM-STRING--you don't have to specify it with the
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152 minibuffer.
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153
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154 This function is usually the wrong thing to use in a Lisp program.
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155 What you probably want is a loop like this:
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156 (while (search-forward FROM-STRING nil t)
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157 (replace-match TO-STRING nil t))
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158 which will run faster and will not set the mark or print anything."
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159 (interactive (query-replace-read-args "Replace string" nil))
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160 (perform-replace from-string to-string nil nil delimited))
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161
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162 (defun replace-regexp (regexp to-string &optional delimited)
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163 "Replace things after point matching REGEXP with TO-STRING.
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164 Preserve case in each match if `case-replace' and `case-fold-search'
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165 are non-nil and REGEXP has no uppercase letters.
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166 \(Preserving case means that if the string matched is all caps, or capitalized,
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167 then its replacement is upcased or capitalized.)
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168
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169 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
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170 only matches surrounded by word boundaries.
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171 In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP,
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172 and `\\=\\N' (where N is a digit) stands for
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173 whatever what matched the Nth `\\(...\\)' in REGEXP.
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174
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175 If `query-replace-interactive' is non-nil, the last incremental search
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176 regexp is used as REGEXP--you don't have to specify it with the minibuffer.
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177
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178 This function is usually the wrong thing to use in a Lisp program.
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179 What you probably want is a loop like this:
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180 (while (re-search-forward REGEXP nil t)
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181 (replace-match TO-STRING nil nil))
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182 which will run faster and will not set the mark or print anything."
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183 (interactive (query-replace-read-args "Replace regexp" t))
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184 (perform-replace regexp to-string nil t delimited))
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185
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186
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187 (defvar regexp-history nil
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188 "History list for some commands that read regular expressions.")
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189
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190 (define-function 'keep-lines 'delete-non-matching-lines)
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191 (defun delete-non-matching-lines (regexp)
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192 "Delete all lines except those containing matches for REGEXP.
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193 A match split across lines preserves all the lines it lies in.
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194 Applies to all lines after point."
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195 (interactive (list (read-from-minibuffer
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196 "Keep lines (containing match for regexp): "
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197 nil nil nil 'regexp-history)))
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198 (save-excursion
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199 (or (bolp) (forward-line 1))
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200 (let ((start (point)))
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201 (while (not (eobp))
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202 ;; Start is first char not preserved by previous match.
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203 (if (not (re-search-forward regexp nil 'move))
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204 (delete-region start (point-max))
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205 (let ((end (save-excursion (goto-char (match-beginning 0))
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206 (beginning-of-line)
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207 (point))))
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208 ;; Now end is first char preserved by the new match.
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209 (if (< start end)
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210 (delete-region start end))))
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211 (setq start (save-excursion (forward-line 1)
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212 (point)))
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213 ;; If the match was empty, avoid matching again at same place.
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214 (and (not (eobp)) (= (match-beginning 0) (match-end 0))
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215 (forward-char 1))))))
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216
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217 (define-function 'flush-lines 'delete-matching-lines)
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218 (defun delete-matching-lines (regexp)
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219 "Delete lines containing matches for REGEXP.
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220 If a match is split across lines, all the lines it lies in are deleted.
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221 Applies to lines after point."
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222 (interactive (list (read-from-minibuffer
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223 "Flush lines (containing match for regexp): "
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224 nil nil nil 'regexp-history)))
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225 (save-excursion
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226 (while (and (not (eobp))
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227 (re-search-forward regexp nil t))
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228 (delete-region (save-excursion (goto-char (match-beginning 0))
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229 (beginning-of-line)
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230 (point))
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231 (progn (forward-line 1) (point))))))
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232
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233 (define-function 'how-many 'count-matches)
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234 (defun count-matches (regexp)
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235 "Print number of matches for REGEXP following point."
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236 (interactive (list (read-from-minibuffer
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237 "How many matches for (regexp): "
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238 nil nil nil 'regexp-history)))
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239 (let ((count 0) opoint)
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240 (save-excursion
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241 (while (and (not (eobp))
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242 (progn (setq opoint (point))
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243 (re-search-forward regexp nil t)))
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244 (if (= opoint (point))
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245 (forward-char 1)
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246 (setq count (1+ count))))
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247 (message "%d occurrences" count))))
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248
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249
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250 (defvar occur-mode-map ())
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251 (if occur-mode-map
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252 ()
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253 (setq occur-mode-map (make-sparse-keymap))
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254 (set-keymap-name occur-mode-map 'occur-mode-map)
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255 (define-key occur-mode-map 'button2 'occur-mode-mouse-goto)
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256 (define-key occur-mode-map "\C-c\C-c" 'occur-mode-goto-occurrence)
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257 (define-key occur-mode-map "\C-m" 'occur-mode-goto-occurrence))
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258
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259 (defvar occur-buffer nil)
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260 (defvar occur-nlines nil)
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261 (defvar occur-pos-list nil)
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262
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263 (defun occur-mode ()
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264 "Major mode for output from \\[occur].
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265 \\<occur-mode-map>Move point to one of the items in this buffer, then use
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266 \\[occur-mode-goto-occurrence] to go to the occurrence that the item refers to.
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267 Alternatively, click \\[occur-mode-mouse-goto] on an item to go to it.
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268
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269 \\{occur-mode-map}"
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270 (kill-all-local-variables)
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271 (use-local-map occur-mode-map)
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272 (setq major-mode 'occur-mode)
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273 (setq mode-name (gettext "Occur"))
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274 (make-local-variable 'occur-buffer)
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275 (make-local-variable 'occur-nlines)
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276 (make-local-variable 'occur-pos-list)
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277 (require 'mode-motion)
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278 (setq mode-motion-hook 'mode-motion-highlight-line)
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279 (run-hooks 'occur-mode-hook))
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280
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281 (defun occur-mode-mouse-goto (e)
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2
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282 "Go to the occurrence highlighted by mouse.
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283 This function is only reasonable when bound to a mouse key in the occur buffer"
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284 (interactive "e")
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285 (let ((window-save (selected-window))
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286 (frame-save (selected-frame)))
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287 ;; preserve the window/frame setup
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288 (unwind-protect
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289 (progn
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290 (mouse-set-point e)
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291 (occur-mode-goto-occurrence))
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292 (select-frame frame-save)
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293 (select-window window-save))))
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294
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295 (defun occur-mode-goto-occurrence ()
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296 "Go to the occurrence the current line describes."
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297 (interactive)
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298 (if (or (null occur-buffer)
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299 (null (buffer-name occur-buffer)))
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300 (progn
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301 (setq occur-buffer nil
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302 occur-pos-list nil)
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303 (error "Buffer in which occurrences were found is deleted")))
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304 (let* ((line-count
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305 (count-lines (point-min)
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306 (save-excursion
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307 (beginning-of-line)
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308 (point))))
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309 (occur-number (save-excursion
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310 (beginning-of-line)
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311 (/ (1- line-count)
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312 (cond ((< occur-nlines 0)
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313 (- 2 occur-nlines))
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314 ((> occur-nlines 0)
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315 (+ 2 (* 2 occur-nlines)))
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316 (t 1)))))
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317 (pos (nth occur-number occur-pos-list))
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318 ;; removed t arg from Bob Weiner, 10/6/95
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319 (window (get-buffer-window occur-buffer))
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320 (occur-source-buffer occur-buffer))
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321 (if (< line-count 1)
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322 (error "No occurrence on this line"))
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323 (or pos
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324 (error "No occurrence on this line"))
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325 ;; don't raise window unless it isn't visible
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326 ;; allow for the possibility that the occur buffer is on another frame
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327 (or (and window
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328 (window-live-p window)
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329 (frame-visible-p (window-frame window))
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330 (set-buffer occur-source-buffer))
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331 (and (pop-to-buffer occur-source-buffer)
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332 (setq window (get-buffer-window occur-source-buffer))))
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333 (goto-char pos)
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334 (set-window-point window pos)))
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335
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336
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337 (defvar list-matching-lines-default-context-lines 0
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338 "*Default number of context lines to include around a `list-matching-lines'
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339 match. A negative number means to include that many lines before the match.
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340 A positive number means to include that many lines both before and after.")
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341
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342 ;; XEmacs addition
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343 ;;; Damn you Jamie, this is utter trash.
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344 (defvar list-matching-lines-whole-buffer t
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345 "If t, occur operates on whole buffer, otherwise occur starts from point.
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346 default is nil.")
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347
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348 (define-function 'occur 'list-matching-lines)
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349 (defun list-matching-lines (regexp &optional nlines)
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350 "Show all lines in the current buffer containing a match for REGEXP.
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351
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352 If a match spreads across multiple lines, all those lines are shown.
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353
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354 If variable `list-matching-lines-whole-buffer' is non-nil, the entire buffer is
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355 searched, otherwise search begins at point.
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356
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357 Each line is displayed with NLINES lines before and after,
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358 or -NLINES before if NLINES is negative.
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359 NLINES defaults to `list-matching-lines-default-context-lines'.
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360 Interactively it is the prefix arg.
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361
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362 The lines are shown in a buffer named `*Occur*'.
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363 It serves as a menu to find any of the occurrences in this buffer.
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364 \\[describe-mode] in that buffer will explain how."
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365 (interactive
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366 (list (let* ((default (or (symbol-near-point)
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367 (and regexp-history
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368 (car regexp-history))))
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369 (minibuffer-history-minimum-string-length 0)
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370 (input
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371 (if default
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372 ;; rewritten for I18N3 snarfing
|
|
|
373 (read-from-minibuffer
|
|
|
374 (format "List lines matching regexp (default `%s'): "
|
|
|
375 default) nil nil nil 'regexp-history)
|
|
|
376 (read-from-minibuffer
|
|
|
377 "List lines matching regexp: "
|
|
|
378 nil nil nil
|
|
|
379 'regexp-history))))
|
|
|
380 (if (and (equal input "") default)
|
|
|
381 (progn
|
|
|
382 (setq input default)
|
|
|
383 (setcar regexp-history default)))
|
|
|
384 ;; clear extra entries
|
|
|
385 (setcdr regexp-history (delete (car regexp-history)
|
|
|
386 (cdr regexp-history)))
|
|
|
387 input)
|
|
|
388 current-prefix-arg))
|
|
|
389 (if (equal regexp "")
|
|
|
390 (error "Must pass non-empty regexp to `list-matching-lines'"))
|
|
|
391 (setq nlines (if nlines (prefix-numeric-value nlines)
|
|
|
392 list-matching-lines-default-context-lines))
|
|
|
393 (let ((first t)
|
|
|
394 (dir default-directory)
|
|
|
395 (buffer (current-buffer))
|
|
|
396 (linenum 1)
|
|
|
397 (prevpos (point-min))
|
|
|
398 (final-context-start (make-marker)))
|
|
|
399 (if (not list-matching-lines-whole-buffer)
|
|
|
400 (save-excursion
|
|
|
401 (beginning-of-line)
|
|
|
402 (setq linenum (1+ (count-lines (point-min) (point))))
|
|
|
403 (setq prevpos (point))))
|
|
|
404 (with-output-to-temp-buffer "*Occur*"
|
|
|
405 (save-excursion
|
|
|
406 (set-buffer standard-output)
|
|
|
407 (setq default-directory dir)
|
|
|
408 ;; We will insert the number of lines, and "lines", later.
|
|
|
409 ;; #### Needs fixing for I18N3
|
|
|
410 (let ((print-escape-newlines t))
|
|
|
411 (insert (format " matching %s in buffer %s.\n"
|
|
|
412 regexp (buffer-name buffer))))
|
|
|
413 (occur-mode)
|
|
|
414 (setq occur-buffer buffer)
|
|
|
415 (setq occur-nlines nlines)
|
|
|
416 (setq occur-pos-list ()))
|
|
|
417 (if (eq buffer standard-output)
|
|
|
418 (goto-char (point-max)))
|
|
|
419 (save-excursion
|
|
|
420 (if list-matching-lines-whole-buffer
|
|
|
421 (beginning-of-buffer))
|
|
|
422 (message (format "Searching for %s ..." regexp))
|
|
|
423 ;; Find next match, but give up if prev match was at end of buffer.
|
|
|
424 (while (and (not (= prevpos (point-max)))
|
|
|
425 (re-search-forward regexp nil t))
|
|
|
426 (goto-char (match-beginning 0))
|
|
|
427 (beginning-of-line)
|
|
|
428 (save-match-data
|
|
|
429 (setq linenum (+ linenum (count-lines prevpos (point)))))
|
|
|
430 (setq prevpos (point))
|
|
|
431 (goto-char (match-end 0))
|
|
|
432 (let* ((start (save-excursion
|
|
|
433 (goto-char (match-beginning 0))
|
|
|
434 (forward-line (if (< nlines 0) nlines (- nlines)))
|
|
|
435 (point)))
|
|
|
436 (end (save-excursion
|
|
|
437 (goto-char (match-end 0))
|
|
|
438 (if (> nlines 0)
|
|
|
439 (forward-line (1+ nlines))
|
|
|
440 (forward-line 1))
|
|
|
441 (point)))
|
|
|
442 (tag (format "%5d" linenum))
|
|
|
443 (empty (make-string (length tag) ?\ ))
|
|
|
444 tem)
|
|
|
445 (save-excursion
|
|
|
446 (setq tem (make-marker))
|
|
|
447 (set-marker tem (point))
|
|
|
448 (set-buffer standard-output)
|
|
|
449 (setq occur-pos-list (cons tem occur-pos-list))
|
|
|
450 (or first (zerop nlines)
|
|
|
451 (insert "--------\n"))
|
|
|
452 (setq first nil)
|
|
|
453 (insert-buffer-substring buffer start end)
|
|
|
454 (set-marker final-context-start
|
|
|
455 (- (point) (- end (match-end 0))))
|
|
|
456 (backward-char (- end start))
|
|
|
457 (setq tem (if (< nlines 0) (- nlines) nlines))
|
|
|
458 (while (> tem 0)
|
|
|
459 (insert empty ?:)
|
|
|
460 (forward-line 1)
|
|
|
461 (setq tem (1- tem)))
|
|
|
462 (let ((this-linenum linenum))
|
|
|
463 (while (< (point) final-context-start)
|
|
|
464 (if (null tag)
|
|
|
465 (setq tag (format "%5d" this-linenum)))
|
|
|
466 (insert tag ?:)
|
|
|
467 ;; FSFmacs -- we handle this using mode-motion-highlight-line, above.
|
|
|
468 ; (put-text-property (save-excursion
|
|
|
469 ; (beginning-of-line)
|
|
|
470 ; (point))
|
|
|
471 ; (save-excursion
|
|
|
472 ; (end-of-line)
|
|
|
473 ; (point))
|
|
|
474 ; 'mouse-face 'highlight)
|
|
|
475 (forward-line 1)
|
|
|
476 (setq tag nil)
|
|
|
477 (setq this-linenum (1+ this-linenum)))
|
|
|
478 (while (<= (point) final-context-start)
|
|
|
479 (insert empty ?:)
|
|
|
480 (forward-line 1)
|
|
|
481 (setq this-linenum (1+ this-linenum))))
|
|
|
482 (while (< tem nlines)
|
|
|
483 (insert empty ?:)
|
|
|
484 (forward-line 1)
|
|
|
485 (setq tem (1+ tem)))
|
|
|
486 (goto-char (point-max)))
|
|
|
487 (forward-line 1)))
|
|
|
488 (set-buffer standard-output)
|
|
|
489 ;; Put positions in increasing order to go with buffer.
|
|
|
490 (setq occur-pos-list (nreverse occur-pos-list))
|
|
|
491 (goto-char (point-min))
|
|
|
492 (if (= (length occur-pos-list) 1)
|
|
|
493 (insert "1 line")
|
|
|
494 (insert (format "%d lines" (length occur-pos-list))))
|
|
|
495 (if (interactive-p)
|
|
|
496 (message "%d matching lines." (length occur-pos-list)))))))
|
|
|
497
|
|
|
498 ;; It would be nice to use \\[...], but there is no reasonable way
|
|
|
499 ;; to make that display both SPC and Y.
|
|
|
500 (defvar query-replace-help (purecopy
|
|
|
501 "Type Space or `y' to replace one match, Delete or `n' to skip to next,
|
|
|
502 RET or `q' to exit, Period to replace one match and exit,
|
|
|
503 Comma to replace but not move point immediately,
|
|
|
504 C-r to enter recursive edit (\\[exit-recursive-edit] to get out again),
|
|
|
505 C-w to delete match and recursive edit,
|
|
|
506 C-l to clear the frame, redisplay, and offer same replacement again,
|
|
|
507 ! to replace all remaining matches with no more questions,
|
|
|
508 ^ to move point back to previous match.")
|
|
|
509 "Help message while in query-replace")
|
|
|
510
|
|
|
511 (defvar query-replace-map nil
|
|
|
512 "Keymap that defines the responses to questions in `query-replace'.
|
|
|
513 The \"bindings\" in this map are not commands; they are answers.
|
|
|
514 The valid answers include `act', `skip', `act-and-show',
|
|
|
515 `exit', `act-and-exit', `edit', `delete-and-edit', `recenter',
|
|
|
516 `automatic', `backup', `exit-prefix', and `help'.")
|
|
|
517
|
|
|
518 (if query-replace-map
|
|
|
519 nil
|
|
|
520 (let ((map (make-sparse-keymap)))
|
|
|
521 (set-keymap-name map 'query-replace-map)
|
|
|
522 (define-key map " " 'act)
|
|
|
523 (define-key map "\d" 'skip)
|
|
|
524 (define-key map [delete] 'skip)
|
|
|
525 (define-key map [backspace] 'skip)
|
|
|
526 (define-key map "y" 'act)
|
|
|
527 (define-key map "n" 'skip)
|
|
|
528 (define-key map "Y" 'act)
|
|
|
529 (define-key map "N" 'skip)
|
|
|
530 (define-key map "," 'act-and-show)
|
|
|
531 (define-key map [escape] 'exit)
|
|
|
532 (define-key map "q" 'exit)
|
|
|
533 (define-key map [return] 'exit)
|
|
|
534 (define-key map "." 'act-and-exit)
|
|
|
535 (define-key map "\C-r" 'edit)
|
|
|
536 (define-key map "\C-w" 'delete-and-edit)
|
|
|
537 (define-key map "\C-l" 'recenter)
|
|
|
538 (define-key map "!" 'automatic)
|
|
|
539 (define-key map "^" 'backup)
|
|
|
540 (define-key map [(control h)] 'help) ;; XEmacs change
|
|
|
541 (define-key map [f1] 'help)
|
|
|
542 (define-key map [help] 'help)
|
|
|
543 (define-key map "?" 'help)
|
|
|
544 (define-key map "\C-g" 'quit)
|
|
|
545 (define-key map "\C-]" 'quit)
|
|
|
546 ;FSFmacs (define-key map "\e" 'exit-prefix)
|
|
|
547 (define-key map [escape] 'exit-prefix)
|
|
|
548
|
|
|
549 (setq query-replace-map map)))
|
|
|
550
|
|
|
551
|
|
|
552 (autoload 'isearch-highlight "isearch")
|
|
|
553
|
|
|
554 (defun perform-replace-next-event (event)
|
|
|
555 (if isearch-highlight
|
|
|
556 (let ((aborted t))
|
|
|
557 (unwind-protect
|
|
|
558 (progn
|
|
|
559 (isearch-highlight (match-beginning 0) (match-end 0))
|
|
|
560 (next-command-event event)
|
|
|
561 (setq aborted nil))
|
|
|
562 (isearch-dehighlight aborted)))
|
|
|
563 (next-command-event event)))
|
|
|
564
|
|
|
565 (defun perform-replace (from-string replacements
|
|
|
566 query-flag regexp-flag delimited-flag
|
|
|
567 &optional repeat-count map)
|
|
|
568 "Subroutine of `query-replace'. Its complexity handles interactive queries.
|
|
|
569 Don't use this in your own program unless you want to query and set the mark
|
|
|
570 just as `query-replace' does. Instead, write a simple loop like this:
|
|
|
571 (while (re-search-forward \"foo[ \t]+bar\" nil t)
|
|
|
572 (replace-match \"foobar\" nil nil))
|
|
|
573 which will run faster and probably do exactly what you want."
|
|
|
574 (or map (setq map query-replace-map))
|
|
|
575 (let* ((event (make-event))
|
|
|
576 (nocasify (not (and case-fold-search case-replace
|
|
|
577 (string-equal from-string
|
|
|
578 (downcase from-string)))))
|
|
|
579 (literal (not regexp-flag))
|
|
|
580 (search-function (if regexp-flag 're-search-forward 'search-forward))
|
|
|
581 (search-string from-string)
|
|
|
582 (real-match-data nil) ; the match data for the current match
|
|
|
583 (next-replacement nil)
|
|
|
584 (replacement-index 0)
|
|
|
585 (keep-going t)
|
|
|
586 (stack nil)
|
|
|
587 (next-rotate-count 0)
|
|
|
588 (replace-count 0)
|
|
|
589 (lastrepl nil) ;Position after last match considered.
|
|
|
590 (match-again t)
|
|
|
591 ;; XEmacs addition
|
|
|
592 (qr-case-fold-search
|
|
|
593 (if (and case-fold-search search-caps-disable-folding)
|
|
|
594 (isearch-no-upper-case-p search-string)
|
|
|
595 case-fold-search))
|
|
|
596 (message
|
|
|
597 (if query-flag
|
|
|
598 (substitute-command-keys
|
|
|
599 "Query replacing %s with %s: (\\<query-replace-map>\\[help] for help) "))))
|
|
|
600 (if (stringp replacements)
|
|
|
601 (setq next-replacement replacements)
|
|
|
602 (or repeat-count (setq repeat-count 1)))
|
|
|
603 (if delimited-flag
|
|
|
604 (setq search-function 're-search-forward
|
|
|
605 search-string (concat "\\b"
|
|
|
606 (if regexp-flag from-string
|
|
|
607 (regexp-quote from-string))
|
|
|
608 "\\b")))
|
|
|
609 (push-mark)
|
|
|
610 (undo-boundary)
|
|
|
611 ;; Loop finding occurrences that perhaps should be replaced.
|
|
|
612 (while (and keep-going
|
|
|
613 (not (eobp))
|
|
|
614 (let ((case-fold-search qr-case-fold-search))
|
|
|
615 (funcall search-function search-string nil t))
|
|
|
616 ;; If the search string matches immediately after
|
|
|
617 ;; the previous match, but it did not match there
|
|
|
618 ;; before the replacement was done, ignore the match.
|
|
|
619 (if (or (eq lastrepl (point))
|
|
|
620 (and regexp-flag
|
|
|
621 (eq lastrepl (match-beginning 0))
|
|
|
622 (not match-again)))
|
|
|
623
|
|
|
624 (if (eobp)
|
|
|
625 nil
|
|
|
626 ;; Don't replace the null string
|
|
|
627 ;; right after end of previous replacement.
|
|
|
628 (forward-char 1)
|
|
|
629 (let ((case-fold-search qr-case-fold-search))
|
|
|
630 (funcall search-function search-string nil t)))
|
|
|
631 t))
|
|
|
632 ;; Save the data associated with the real match.
|
|
|
633 (setq real-match-data (match-data))
|
|
|
634
|
|
|
635 ;; Before we make the replacement, decide whether the search string
|
|
|
636 ;; can match again just after this match.
|
|
|
637 (if regexp-flag
|
|
|
638 (progn
|
|
|
639 (setq match-again (looking-at search-string))
|
|
|
640 (store-match-data real-match-data)))
|
|
|
641
|
|
|
642 ;; If time for a change, advance to next replacement string.
|
|
|
643 (if (and (listp replacements)
|
|
|
644 (= next-rotate-count replace-count))
|
|
|
645 (progn
|
|
|
646 (setq next-rotate-count
|
|
|
647 (+ next-rotate-count repeat-count))
|
|
|
648 (setq next-replacement (nth replacement-index replacements))
|
|
|
649 (setq replacement-index (% (1+ replacement-index) (length replacements)))))
|
|
|
650 (if (not query-flag)
|
|
|
651 (progn
|
|
|
652 (store-match-data real-match-data)
|
|
|
653 (replace-match next-replacement nocasify literal)
|
|
|
654 (setq replace-count (1+ replace-count)))
|
|
|
655 (undo-boundary)
|
|
|
656 (let ((help-form
|
|
|
657 '(concat (format "Query replacing %s%s with %s.\n\n"
|
|
|
658 (if regexp-flag (gettext "regexp ") "")
|
|
|
659 from-string next-replacement)
|
|
|
660 (substitute-command-keys query-replace-help)))
|
|
|
661 (done nil)
|
|
|
662 (replaced nil)
|
|
|
663 def)
|
|
|
664 ;; Loop reading commands until one of them sets done,
|
|
|
665 ;; which means it has finished handling this occurrence.
|
|
|
666 (while (not done)
|
|
|
667 ;; Don't fill up the message log
|
|
|
668 ;; with a bunch of identical messages.
|
|
|
669 (display-message 'prompt
|
|
|
670 (format message from-string next-replacement))
|
|
|
671 (perform-replace-next-event event)
|
|
|
672 (setq def (lookup-key map (vector event)))
|
|
|
673 ;; Restore the match data while we process the command.
|
|
|
674 (store-match-data real-match-data)
|
|
|
675 (cond ((eq def 'help)
|
|
|
676 (with-output-to-temp-buffer (gettext "*Help*")
|
|
|
677 (princ (concat
|
|
|
678 (format "Query replacing %s%s with %s.\n\n"
|
|
|
679 (if regexp-flag "regexp " "")
|
|
|
680 from-string next-replacement)
|
|
|
681 (substitute-command-keys
|
|
|
682 query-replace-help)))
|
|
|
683 (save-excursion
|
|
|
684 (set-buffer standard-output)
|
|
|
685 (help-mode))))
|
|
|
686 ((eq def 'exit)
|
|
|
687 (setq keep-going nil)
|
|
|
688 (setq done t))
|
|
|
689 ((eq def 'backup)
|
|
|
690 (if stack
|
|
|
691 (let ((elt (car stack)))
|
|
|
692 (goto-char (car elt))
|
|
|
693 (setq replaced (eq t (cdr elt)))
|
|
|
694 (or replaced
|
|
|
695 (store-match-data (cdr elt)))
|
|
|
696 (setq stack (cdr stack)))
|
|
|
697 (progn
|
|
|
698 (message "No previous match")
|
|
|
699 (ding 'no-terminate)
|
|
|
700 (sit-for 1))))
|
|
|
701 ((eq def 'act)
|
|
|
702 (or replaced
|
|
|
703 (replace-match next-replacement nocasify literal))
|
|
|
704 (setq done t replaced t))
|
|
|
705 ((eq def 'act-and-exit)
|
|
|
706 (or replaced
|
|
|
707 (replace-match next-replacement nocasify literal))
|
|
|
708 (setq keep-going nil)
|
|
|
709 (setq done t replaced t))
|
|
|
710 ((eq def 'act-and-show)
|
|
|
711 (if (not replaced)
|
|
|
712 (progn
|
|
|
713 (replace-match next-replacement nocasify literal)
|
|
|
714 (setq replaced t))))
|
|
|
715 ((eq def 'automatic)
|
|
|
716 (or replaced
|
|
|
717 (replace-match next-replacement nocasify literal))
|
|
|
718 (setq done t query-flag nil replaced t))
|
|
|
719 ((eq def 'skip)
|
|
|
720 (setq done t))
|
|
|
721 ((eq def 'recenter)
|
|
|
722 (recenter nil))
|
|
|
723 ((eq def 'edit)
|
|
|
724 (store-match-data
|
|
|
725 (prog1 (match-data)
|
|
|
726 (save-excursion (recursive-edit))))
|
|
|
727 ;; Before we make the replacement,
|
|
|
728 ;; decide whether the search string
|
|
|
729 ;; can match again just after this match.
|
|
|
730 (if regexp-flag
|
|
|
731 (setq match-again (looking-at search-string))))
|
|
|
732 ((eq def 'delete-and-edit)
|
|
|
733 (delete-region (match-beginning 0) (match-end 0))
|
|
|
734 (store-match-data (prog1 (match-data)
|
|
|
735 (save-excursion (recursive-edit))))
|
|
|
736 (setq replaced t))
|
|
|
737 ;; Note: we do not need to treat `exit-prefix'
|
|
|
738 ;; specially here, since we reread
|
|
|
739 ;; any unrecognized character.
|
|
|
740 (t
|
|
|
741 (setq this-command 'mode-exited)
|
|
|
742 (setq keep-going nil)
|
|
|
743 (setq unread-command-events
|
|
|
744 (cons event unread-command-events))
|
|
|
745 (setq done t))))
|
|
|
746 ;; Record previous position for ^ when we move on.
|
|
|
747 ;; Change markers to numbers in the match data
|
|
|
748 ;; since lots of markers slow down editing.
|
|
|
749 (setq stack
|
|
|
750 (cons (cons (point)
|
|
|
751 (or replaced
|
|
|
752 (mapcar
|
|
|
753 #'(lambda (elt)
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|
|
754 (if (markerp elt)
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755 (prog1 (marker-position elt)
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756 (set-marker elt nil))
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|
|
757 elt))
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|
758 (match-data))))
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|
759 stack))
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|
|
760 (if replaced (setq replace-count (1+ replace-count)))))
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|
|
761 (setq lastrepl (point)))
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|
|
762 (or unread-command-events
|
|
|
763 (message "Replaced %d occurrence%s"
|
|
|
764 replace-count
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|
765 (if (= replace-count 1) "" "s")))
|
|
|
766 (and keep-going stack)))
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|
|
767
|
|
|
768 ; FSF 19.30 original:
|
|
|
769 ; (defun match-string (num &optional string)
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|
|
770 ; "Return string of text matched by last search.
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|
|
771 ; NUM specifies which parenthesized expression in the last regexp.
|
|
|
772 ; Value is nil if NUMth pair didn't match, or there were less than NUM pairs.
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|
|
773 ; Zero means the entire text matched by the whole regexp or whole string.
|
|
|
774 ; STRING should be given if the last search was by `string-match' on STRING."
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|
|
775 ; (if (match-beginning num)
|
|
|
776 ; (if string
|
|
|
777 ; (substring string (match-beginning num) (match-end num))
|
|
|
778 ; (buffer-substring (match-beginning num) (match-end num)))))
|
|
|
779
|
|
|
780 ;; #### - this could stand to be in C...
|
|
|
781 (defmacro match-string (n &optional string)
|
|
|
782 "Returns the Nth subexpression matched by the last regular expression
|
|
|
783 search. The second argument, STRING, must be specified if the last
|
|
|
784 regular expression search was done with `string-match'."
|
|
|
785 ;; #### - note that match-beginning is byte coded, so it's more efficient
|
|
|
786 ;; to just call it twice than it is to let-bind its return value... --Stig
|
|
|
787 `(and (match-beginning ,n)
|
|
|
788 ,(if string
|
|
|
789 `(substring ,string (match-beginning ,n) (match-end ,n))
|
|
|
790 `(buffer-substring (match-beginning ,n) (match-end ,n)))))
|
|
|
791
|
|
|
792 (defmacro save-match-data (&rest body)
|
|
|
793 "Execute BODY forms, restoring the global value of the match data."
|
|
|
794 (let ((original (make-symbol "match-data")))
|
|
|
795 (list 'let (list (list original '(match-data)))
|
|
|
796 (list 'unwind-protect
|
|
|
797 (cons 'progn body)
|
|
|
798 (list 'store-match-data original)))))
|
|
|
799
|
|
|
800 ;;; replace.el ends here
|
