| blob | c7fbcb5d99c52054b6eee38e2168448b5eab52a8 |
1 ;;; replace.el --- replace commands for Emacs
3 ;; Copyright (C) 1985-1987, 1992, 1994, 1996-1997, 2000-2014 Free
4 ;; Software Foundation, Inc.
6 ;; Maintainer: emacs-devel@gnu.org
7 ;; Package: emacs
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software: you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation, either version 3 of the License, or
14 ;; (at your option) any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
24 ;;; Commentary:
26 ;; This package supplies the string and regular-expression replace functions
27 ;; documented in the Emacs user's manual.
29 ;;; Code:
32 "Non-nil means `query-replace' should preserve case in replacements."
37 "Non-nil means `query-replace' matches a sequence of whitespace chars.
38 When you enter a space or spaces in the strings to be replaced,
39 it will match any sequence matched by the regexp `search-whitespace-regexp'."
45 "Non-nil means `query-replace-regexp' matches a sequence of whitespace chars.
46 When you enter a space or spaces in the regexps to be replaced,
47 it will match any sequence matched by the regexp `search-whitespace-regexp'."
53 "Default history list for query-replace commands.
54 See `query-replace-from-history-variable' and
58 "Default values of FROM-STRING and TO-STRING for `query-replace'.
59 This is a list of cons cells (FROM-STRING . TO-STRING), or nil
63 "Non-nil means `query-replace' uses the last search string.
66 "use `M-n' to pull the last incremental search string
67 to the minibuffer that reads the string to replace, or invoke replacements
77 "History list to use for the FROM argument of `query-replace' commands.
78 The value of this variable should be a symbol; that symbol
79 is used as a variable to hold a history list for the strings
80 or patterns to be replaced."
86 "History list to use for the TO argument of `query-replace' commands.
87 The value of this variable should be a symbol; that symbol
88 is used as a variable to hold a history list for replacement
89 strings or patterns."
95 "Non-nil means `query-replace' and friends ignore read-only matches."
101 "Non-nil means to show what actual replacement text will be."
107 "Non-nil means to highlight matches during query replacement."
112 "Controls the lazy-highlighting during query replacements.
113 When non-nil, all text in the buffer matching the current match
114 is highlighted lazily using isearch lazy highlighting (see
115 `lazy-highlight-initial-delay' and `lazy-highlight-interval')."
123 "Face for highlighting query replacement matches."
128 "Number of replacements done so far.
135 "Query and return the `from' argument of a query-replace operation.
136 The return value can also be a pair (FROM . TO) indicating that the user
137 wants to replace FROM with TO."
146 query-replace-from-to-separator
148 query-replace-defaults))
156 ;; The save-excursion here is in case the user marks and copies
157 ;; a region in order to specify the minibuffer input.
158 ;; That should not clobber the region for the query-replace itself.
163 prompt nil nil nil 'query-replace-from-to-history
176 ;; Warn if user types \n or \t, but don't reject the input.
187 from
193 "Maybe convert a regexp replacement TO to Lisp.
194 Returns a list suitable for `perform-replace' if necessary,
195 the original string if not."
211 ;; Swallow a space after a symbol
212 ;; if there is a space.
214 ;; Swallow a space after 'foo
215 ;; but not after (quote foo).
230 to))
234 "Query and return the `to' argument of a query-replace operation."
240 nil nil nil
241 query-replace-to-history-variable from t)))
244 to))
245 regexp-flag))
258 "Replace some occurrences of FROM-STRING with TO-STRING.
259 As each match is found, the user must type a character saying
262 In Transient Mark mode, if the mark is active, operate on the contents
263 of the region. Otherwise, operate from point to the end of the buffer.
266 to pull the last incremental search string to the minibuffer
267 that reads FROM-STRING, or invoke replacements from
268 incremental search with a key sequence like `C-s C-s M-%'
269 to use its current search string as the string to replace.
271 Matching is independent of case if `case-fold-search' is non-nil and
272 FROM-STRING has no uppercase letters. Replacement transfers the case
273 pattern of the old text to the new text, if `case-replace' and
274 `case-fold-search' are non-nil and FROM-STRING has no uppercase
275 letters. (Transferring the case pattern means that if the old text
276 matched is all caps, or capitalized, then its replacement is upcased
277 or capitalized.)
279 Ignore read-only matches if `query-replace-skip-read-only' is non-nil,
280 ignore hidden matches if `search-invisible' is nil, and ignore more
281 matches using `isearch-filter-predicate'.
283 If `replace-lax-whitespace' is non-nil, a space or spaces in the string
284 to be replaced will match a sequence of whitespace chars defined by the
285 regexp in `search-whitespace-regexp'.
287 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
288 only matches surrounded by word boundaries. A negative prefix arg means
289 replace backward.
291 Fourth and fifth arg START and END specify the region to operate on.
293 To customize possible responses, change the bindings in `query-replace-map'."
302 nil)))
304 ;; These are done separately here
305 ;; so that command-history will record these expressions
306 ;; rather than the values they had this time.
317 "Replace some things after point matching REGEXP with TO-STRING.
318 As each match is found, the user must type a character saying
321 In Transient Mark mode, if the mark is active, operate on the contents
322 of the region. Otherwise, operate from point to the end of the buffer.
325 to pull the last incremental search regexp to the minibuffer
326 that reads REGEXP, or invoke replacements from
327 incremental search with a key sequence like `C-M-s C-M-s C-M-%'
328 to use its current search regexp as the regexp to replace.
330 Matching is independent of case if `case-fold-search' is non-nil and
331 REGEXP has no uppercase letters. Replacement transfers the case
332 pattern of the old text to the new text, if `case-replace' and
333 `case-fold-search' are non-nil and REGEXP has no uppercase letters.
334 \(Transferring the case pattern means that if the old text matched is
335 all caps, or capitalized, then its replacement is upcased or
336 capitalized.)
338 Ignore read-only matches if `query-replace-skip-read-only' is non-nil,
339 ignore hidden matches if `search-invisible' is nil, and ignore more
340 matches using `isearch-filter-predicate'.
342 If `replace-regexp-lax-whitespace' is non-nil, a space or spaces in the regexp
343 to be replaced will match a sequence of whitespace chars defined by the
344 regexp in `search-whitespace-regexp'.
346 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
347 only matches surrounded by word boundaries. A negative prefix arg means
348 replace backward.
350 Fourth and fifth arg START and END specify the region to operate on.
356 at the given position for each replacement.
359 followed by a Lisp expression. Each
360 replacement evaluates that expression to compute the replacement
363 for the whole or a partial match converted to a number with
365 done so far (starting with zero).
367 If the replacement expression is a symbol, write a space after it
368 to terminate it. One space there, if any, will be discarded.
370 When using those Lisp features interactively in the replacement
371 text, TO-STRING is actually made a list instead of a string.
380 " regexp"
382 t)))
384 ;; These are done separately here
385 ;; so that command-history will record these expressions
386 ;; rather than the values they had this time.
397 "Replace some things after point matching REGEXP with the result of TO-EXPR.
399 Interactive use of this function is deprecated in favor of the
401 using `search-forward-regexp' and `replace-match' is preferred.
403 As each match is found, the user must type a character saying
406 TO-EXPR is a Lisp expression evaluated to compute each replacement. It may
407 reference `replace-count' to get the number of replacements already made.
408 If the result of TO-EXPR is not a string, it is converted to one using
409 `prin1-to-string' with the NOESCAPE argument (which see).
417 In Transient Mark mode, if the mark is active, operate on the contents
418 of the region. Otherwise, operate from point to the end of the buffer.
421 to pull the last incremental search regexp to the minibuffer
422 that reads REGEXP.
424 Preserves case in each replacement if `case-replace' and `case-fold-search'
425 are non-nil and REGEXP has no uppercase letters.
427 Ignore read-only matches if `query-replace-skip-read-only' is non-nil,
428 ignore hidden matches if `search-invisible' is nil, and ignore more
429 matches using `isearch-filter-predicate'.
431 If `replace-regexp-lax-whitespace' is non-nil, a space or spaces in the regexp
432 to be replaced will match a sequence of whitespace chars defined by the
433 regexp in `search-whitespace-regexp'.
435 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
436 only matches that are surrounded by word boundaries.
437 Fourth and fifth arg START and END specify the region to operate on."
439 for interactive calls, and `search-forward-regexp'/`replace-match'
445 ;; Let-bind the history var to disable the "foo -> bar"
446 ;; default. Maybe we shouldn't disable this default, but
447 ;; for now I'll leave it off. --Stef
453 nil nil t query-replace-to-history-variable from t))))
454 ;; We make TO a list because replace-match-string-symbols requires one,
455 ;; and the user might enter a single token.
466 "Replace some matches for REGEXP with various strings, in rotation.
467 The second argument TO-STRINGS contains the replacement strings, separated
468 by spaces. This command works like `query-replace-regexp' except that
469 each successive replacement uses the next successive replacement string,
470 wrapping around from the last such string to the first.
472 In Transient Mark mode, if the mark is active, operate on the contents
473 of the region. Otherwise, operate from point to the end of the buffer.
475 Non-interactively, TO-STRINGS may be a list of replacement strings.
477 Interactively, reads the regexp using `read-regexp'.
479 to pull the last incremental search regexp to the minibuffer
480 that reads REGEXP.
482 A prefix argument N says to use each replacement string N times
483 before rotating to the next.
484 Fourth and fifth arg START and END specify the region to operate on."
487 query-replace-from-history-variable))
491 nil nil nil
492 query-replace-to-history-variable from t)))
516 "Replace occurrences of FROM-STRING with TO-STRING.
517 Preserve case in each match if `case-replace' and `case-fold-search'
518 are non-nil and FROM-STRING has no uppercase letters.
519 \(Preserving case means that if the string matched is all caps, or capitalized,
520 then its replacement is upcased or capitalized.)
522 Ignore read-only matches if `query-replace-skip-read-only' is non-nil,
523 ignore hidden matches if `search-invisible' is nil, and ignore more
524 matches using `isearch-filter-predicate'.
526 If `replace-lax-whitespace' is non-nil, a space or spaces in the string
527 to be replaced will match a sequence of whitespace chars defined by the
528 regexp in `search-whitespace-regexp'.
530 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
531 only matches surrounded by word boundaries. A negative prefix arg means
532 replace backward.
534 Operates on the region between START and END (if both are nil, from point
535 to the end of the buffer). Interactively, if Transient Mark mode is
536 enabled and the mark is active, operates on the contents of the region;
537 otherwise from point to the end of the buffer.
540 to pull the last incremental search string to the minibuffer
541 that reads FROM-STRING.
543 This function is usually the wrong thing to use in a Lisp program.
544 What you probably want is a loop like this:
545 (while (search-forward FROM-STRING nil t)
546 (replace-match TO-STRING nil t))
547 which will run faster and will not set the mark or print anything.
548 \(You may need a more complex loop if FROM-STRING can match the null string
549 and TO-STRING is also null.)"
559 " string"
561 nil)))
571 "Replace things after point matching REGEXP with TO-STRING.
572 Preserve case in each match if `case-replace' and `case-fold-search'
573 are non-nil and REGEXP has no uppercase letters.
575 Ignore read-only matches if `query-replace-skip-read-only' is non-nil,
576 ignore hidden matches if `search-invisible' is nil, and ignore more
577 matches using `isearch-filter-predicate'.
579 If `replace-regexp-lax-whitespace' is non-nil, a space or spaces in the regexp
580 to be replaced will match a sequence of whitespace chars defined by the
581 regexp in `search-whitespace-regexp'.
583 In Transient Mark mode, if the mark is active, operate on the contents
584 of the region. Otherwise, operate from point to the end of the buffer.
586 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
587 only matches surrounded by word boundaries. A negative prefix arg means
588 replace backward.
590 Fourth and fifth arg START and END specify the region to operate on.
596 at the given position for each replacement.
599 followed by a Lisp expression used as part of the replacement
603 `replace-count', the number of replacements occurred so far.
605 If your Lisp expression is an identifier and the next letter in
606 the replacement string would be interpreted as part of it, you
609 replacement text directly.
611 When using those Lisp features interactively in the replacement
612 text, TO-STRING is actually made a list instead of a string.
616 to pull the last incremental search regexp to the minibuffer
617 that reads REGEXP.
619 This function is usually the wrong thing to use in a Lisp program.
620 What you probably want is a loop like this:
621 (while (re-search-forward REGEXP nil t)
622 (replace-match TO-STRING nil nil))
623 which will run faster and will not set the mark or print anything."
633 " regexp"
635 t)))
644 \f
646 "History list for some commands that read regular expressions.
648 Maximum length of the history list is determined by the value
655 "Function that provides default regexp(s) for `read-regexp'.
656 This function should take no arguments and return one of: nil, a
657 regexp, or a list of regexps. Interactively, `read-regexp' uses
658 the return value of this function for its DEFAULT argument.
660 As an example, set this variable to `find-tag-default-as-regexp'
661 to default to the symbol at point.
663 To provide different default regexps for different commands,
664 the function that you set this to can check `this-command'."
669 find-tag-default)
671 find-tag-default-as-regexp)
673 find-tag-default-as-symbol-regexp)
679 "Return a list of standard suggestions for `read-regexp'.
680 By default, the list includes the tag at point, the last isearch regexp,
681 the last isearch string, and the last replacement regexp. `read-regexp'
682 appends the list returned by this function to the end of values available
692 "Read and return a regular expression as a string.
695 possibly preceded by the default result (see below).
697 The optional argument DEFAULTS can be either: nil, a string, a list
698 of strings, or a symbol. We use DEFAULTS to construct the default
699 return value in case of empty input.
701 If DEFAULTS is a string, we use it as-is.
703 If DEFAULTS is a list of strings, the first element is the
704 default return value, but all the elements are accessible
707 If DEFAULTS is a non-nil symbol, then if `read-regexp-defaults-function'
708 is non-nil, we use that in place of DEFAULTS in the following:
709 If DEFAULTS is the symbol `regexp-history-last', we use the first
710 element of HISTORY (if specified) or `regexp-history'.
711 If DEFAULTS is a function, we call it with no arguments and use
712 what it returns, which should be either nil, a string, or a list of strings.
714 We append the standard values from `read-regexp-suggestions' to DEFAULTS
715 before using it.
717 If the first element of DEFAULTS is non-nil (and if PROMPT does not end
720 The optional argument HISTORY is a symbol to use for the history list.
721 If nil, uses `regexp-history'."
730 defaults))
735 ;; Do not automatically add default to the history for empty input.
739 prompt)
747 ;; Return the default value when the user enters empty input.
751 ;; Otherwise, add non-empty input to the history and return input.
762 "Read arguments for `keep-lines' and friends.
763 Prompt for a regexp with PROMPT.
764 Value is a list, (REGEXP)."
768 "Delete all lines except those containing matches for REGEXP.
769 A match split across lines preserves all the lines it lies in.
770 When called from Lisp (and usually interactively as well, see below)
771 applies to all lines starting after point.
774 and `search-upper-case' is non-nil, the matching is case-sensitive.
776 Second and third arg RSTART and REND specify the region to operate on.
777 This command operates on (the accessible part of) all lines whose
778 accessible part is entirely contained in the region determined by RSTART
779 and REND. (A newline ending a line counts as part of that line.)
781 Interactively, in Transient Mark mode when the mark is active, operate
782 on all lines whose accessible part is entirely contained in the region.
783 Otherwise, the command applies to all lines starting after point.
784 When calling this function from Lisp, you can pretend that it was
785 called interactively by passing a non-nil INTERACTIVE argument.
787 This function starts looking for the next match from the end of
788 the previous match. Hence, it ignores matches that overlap
789 a previously found match."
821 case-fold-search)))
823 ;; Start is first char not preserved by previous match.
829 ;; Now end is first char preserved by the new match.
834 ;; If the match was empty, avoid matching again at same place.
839 nil)
843 "Delete lines containing matches for REGEXP.
844 When called from Lisp (and usually when called interactively as
845 well, see below), applies to the part of the buffer after point.
846 The line point is in is deleted if and only if it contains a
847 match for regexp starting after point.
850 and `search-upper-case' is non-nil, the matching is case-sensitive.
852 Second and third arg RSTART and REND specify the region to operate on.
853 Lines partially contained in this region are deleted if and only if
854 they contain a match entirely contained in it.
856 Interactively, in Transient Mark mode when the mark is active, operate
857 on the contents of the region. Otherwise, operate from point to the
858 end of (the accessible portion of) the buffer. When calling this function
859 from Lisp, you can pretend that it was called interactively by passing
860 a non-nil INTERACTIVE argument.
862 If a match is split across lines, all the lines it lies in are deleted.
863 They are deleted _before_ looking for the next match. Hence, a match
864 starting on the same line at which another match ended is ignored."
883 case-fold-search)))
892 nil)
896 "Print and return number of matches for REGEXP following point.
897 When called from Lisp and INTERACTIVE is omitted or nil, just return
898 the number, do not print it; if INTERACTIVE is t, the function behaves
899 in all respects as if it had been called interactively.
902 and `search-upper-case' is non-nil, the matching is case-sensitive.
904 Second and third arg RSTART and REND specify the region to operate on.
906 Interactively, in Transient Mark mode when the mark is active, operate
907 on the contents of the region. Otherwise, operate from point to the
908 end of (the accessible portion of) the buffer.
910 This function starts looking for the next match from the end of
911 the previous match. Hence, it ignores matches that overlap
912 a previously found match."
931 opoint
935 case-fold-search)))
943 count
945 count)))
947 \f
952 next-error-follow-minor-mode
955 next-error-follow-minor-mode))))
991 map)
996 ;; We use this alternative name, so we can use \\[occur-mode-mouse-goto].
1009 map)
1013 "Arguments to pass to `occur-1' to revert an Occur mode buffer.
1019 "Hook run when entering Occur mode."
1024 "Hook run by Occur when there are any matches."
1029 "Hook run by Occur after locating an occurrence.
1030 This will be called with the cursor position at the occurrence. An application
1031 for this is to reveal context in an outline-mode when the occurrence is hidden."
1046 \f
1047 ;;; Occur Edit mode
1057 map)
1061 "Major mode for editing *Occur* buffers.
1062 In this mode, changes to the *Occur* buffer are also applied to
1063 the originating buffer.
1072 "Switch from Occur Edit mode to Occur mode."
1084 col)
1088 ;; Apply occur-target property to inserted (e.g. yanked) text.
1090 ;; Did we insert a newline? Occur Edit mode can't create new
1091 ;; Occur entries; just discard everything after the newline.
1105 line-beg 'occur-prefix nil
1106 line-end))
1118 \f
1120 "Handle `revert-buffer' for Occur mode buffers."
1129 pos))
1133 "Go to the occurrence on the current line."
1137 ;; Actually `event-end' works correctly with a nil argument as
1138 ;; well, so we could dispense with this test, but let's not
1139 ;; rely on this undocumented behavior.
1150 "Go to the occurrence the current line describes, in another window."
1158 "Display in another window the occurrence the current line describes."
1161 window)
1163 ;; This is the way to set point in the proper window.
1183 "Move to the Nth (default 1) next match in an Occur mode buffer."
1188 "Move to the Nth (default 1) previous match in an Occur mode buffer."
1193 "Move to the Nth (default 1) next match in an Occur mode buffer.
1196 ;; we need to run occur-find-match from within the Occur buffer
1198 ;; Choose the buffer and make it current.
1212 #'previous-single-property-change
1215 ;; In case the *Occur* buffer is visible in a nonselected window.
1219 \f
1232 "Face used to highlight matches permanently."
1237 "Default number of context lines included around `list-matching-lines' matches.
1238 A negative number means to include that many lines before the match.
1239 A positive number means to include that many lines both before and after."
1247 If the value is nil, don't highlight the matching portions specially."
1253 If the value is nil, don't highlight the buffer names specially."
1259 If the face doesn't differ from the default face,
1260 don't highlight the prefix with line numbers specially."
1267 yank-handler follow-link)
1268 "Text properties to discard when copying lines to the *Occur* buffer.
1269 The value should be a list of text properties to discard or t,
1270 which means to discard all text properties."
1278 "Collect strings matching regexp"
1283 ;; Perform collect operation
1285 ;; No subexpression so collect the entire match.
1287 ;; Get the regexp for collection pattern.
1292 ;; Otherwise normal occur takes numerical prefix argument.
1297 "Rename the current *Occur* buffer to *Occur: original-buffer-name*.
1298 Here `original-buffer-name' is the buffer name where Occur was originally run.
1299 When given the prefix argument, or called non-interactively, the renaming
1300 will not clobber the existing buffer(s) of that name, but use
1301 `generate-new-buffer-name' instead. You can add this to `occur-hook'
1302 if you always want a separate *Occur* buffer for each buffer where you
1303 invoke `occur'."
1314 "Show all lines in the current buffer containing a match for REGEXP.
1315 If a match spreads across multiple lines, all those lines are shown.
1317 Each line is displayed with NLINES lines before and after, or -NLINES
1318 before if NLINES is negative.
1319 NLINES defaults to `list-matching-lines-default-context-lines'.
1320 Interactively it is the prefix arg.
1322 The lines are shown in a buffer named `*Occur*'.
1323 It serves as a menu to find any of the occurrences in this buffer.
1327 and `search-upper-case' is non-nil, the matching is case-sensitive.
1329 When NLINES is a string or when the function is called
1330 interactively with prefix argument without a number (`C-u' alone
1331 as prefix) the matching strings are collected into the `*Occur*'
1332 buffer by using NLINES as a replacement regexp. NLINES may
1336 program. When there is no parenthesized subexpressions in REGEXP
1337 the entire match is collected. In any case the searched buffer
1338 is not modified."
1345 "Show all lines in buffers BUFS containing a match for REGEXP.
1346 This function acts on multiple buffers; otherwise, it is exactly like
1347 `occur'. When you invoke this command interactively, you must specify
1348 the buffer names that you want, one by one.
1349 See also `multi-occur-in-matching-buffers'."
1359 "Next buffer to search (C-j to end): "
1361 nil t))
1370 "Show all lines matching REGEXP in buffers specified by BUFREGEXP.
1371 Normally BUFREGEXP matches against each buffer's visited file name,
1372 but if you specify a prefix argument, it matches against the buffer name.
1373 See also `multi-occur'."
1380 "List lines in buffers whose names match regexp: "
1383 default
1384 input))
1396 buf))
1407 bufs))))
1408 ;; Handle the case where one of the buffers we're searching is the
1409 ;; output buffer. Just rename it.
1414 ;; Now find or create the output buffer.
1415 ;; If we just renamed that buffer, we will make a new one here.
1423 ;; Don't generate undo entries for creation of the initial contents.
1428 ;; Treat nlines as a regexp to collect.
1436 ;; Insert the replacement regexp.
1445 count)
1446 ;; Perform normal occur.
1448 regexp active-bufs occur-buf
1452 case-fold-search)
1453 list-matching-lines-buffer-name-face
1455 list-matching-lines-prefix-face)
1456 list-matching-lines-face
1465 ;; Don't display regexp if with remaining text
1466 ;; it is longer than window-width.
1479 title-face prefix-face match-face keep-props)
1485 ;; Map over all the buffers
1504 ;; Set CODING only if the current buffer locally
1505 ;; binds buffer-file-coding-system.
1515 ;; Get beginning of first match line and end of the last.
1521 ;; Sum line numbers up to the first match line.
1526 ;; Highlight the matches
1536 ;; Add `match-face' to faces copied from the buffer.
1539 match-face nil curstring))
1540 ;; Avoid infloop (Bug#7593).
1543 ;; Generate the string to insert for this match
1545 ;; Using 7 digits aligns tabs properly.
1551 ;; Allow insertion of text at
1552 ;; the end of the prefix (for
1553 ;; Occur Edit mode).
1554 front-sticky t rear-nonsticky t
1555 occur-target ,marker follow-link t
1558 ;; We don't put `mouse-face' on the newline,
1559 ;; because that loses. And don't put it
1560 ;; on context lines to reduce flicker.
1562 'occur-target marker
1563 'follow-link t
1564 'help-echo
1568 match-prefix
1569 ;; Add non-numeric prefix to all non-first lines
1570 ;; of multi-line matches.
1576 match-str)
1577 ;; Add marker at eol, but no mouse props.
1581 ;; The simple display style
1582 out-line
1583 ;; The complex multi-line display style.
1585 out-line nlines keep-props begpt endpt
1586 curr-line prev-line prev-after-lines
1587 prefix-face))
1588 ;; Set first elem of the returned list to `data',
1589 ;; and the second elem to `prev-after-lines'.
1592 ;; Actually insert the match display data
1598 ;; Sum line numbers between first and last match lines.
1600 ;; Add 1 for empty last match line since
1601 ;; count-lines returns 1 line less.
1603 ;; On to the next match...
1607 ;; Flush remaining context after-lines.
1611 prev-after-lines prefix-face)))))))
1618 end)
1622 ;; Don't display the same number of lines
1623 ;; and matches in case of 1 match per line.
1627 ;; Don't display regexp for multi-buffer.
1638 ;; Display total match count and regexp for multi-buffer.
1642 end)
1645 ;; Don't display the same number of lines
1646 ;; and matches in case of 1 match per line.
1656 ;; CODING is buffer-file-coding-system of the first buffer
1657 ;; that locally binds it. Let's use it also for the output
1658 ;; buffer.
1660 ;; Return the number of matches
1661 global-matches)))
1672 str)
1682 lines))
1689 result beg end moved)
1701 ;; Generate context display for occur.
1702 ;; OUT-LINE is the line where the match is.
1703 ;; NLINES and KEEP-PROPS are args to occur-engine.
1704 ;; CURR-LINE is line count of the current match,
1705 ;; PREV-LINE is line count of the previous match,
1706 ;; PREV-AFTER-LINES is a list of after-context lines of the previous match.
1707 ;; Generate a list of lines, add prefixes to all but OUT-LINE,
1708 ;; then concatenate them all together.
1710 curr-line prev-line prev-after-lines
1712 ;; Find after- and before-context lines of the current match.
1719 separator)
1721 ;; Combine after-lines of the previous match
1722 ;; with before-lines of the current match.
1725 ;; Don't overlap prev after-lines with current before-lines.
1732 ;; Separate non-overlapping context lines with a dashed line.
1736 ;; Don't overlap current before-lines with previous match line.
1738 prev-line)
1742 before-lines))
1743 ;; Separate non-overlapping before-context lines.
1748 ;; Return a list where the first element is the output line.
1756 separator)))
1759 ;; And the second element is the list of context after-lines.
1762 \f
1763 ;; It would be nice to use \\[...], but there is no reasonable way
1764 ;; to make that display both SPC and Y.
1766 "Type Space or `y' to replace one match, Delete or `n' to skip to next,
1767 RET or `q' to exit, Period to replace one match and exit,
1768 Comma to replace but not move point immediately,
1770 C-w to delete match and recursive edit,
1771 C-l to clear the screen, redisplay, and offer same replacement again,
1772 ! to replace all remaining matches in this buffer with no more questions,
1773 ^ to move point back to previous match,
1774 E to edit the replacement string.
1775 In multi-buffer replacements type `Y' to replace all remaining
1776 matches in all remaining buffers with no more questions,
1777 `N' to skip to the next buffer without replacing remaining matches
1778 in the current buffer."
1786 (define-key map [backspace] 'skip)
1787 (define-key map "y" 'act)
1788 (define-key map "n" 'skip)
1789 (define-key map "Y" 'act)
1790 (define-key map "N" 'skip)
1791 (define-key map "e" 'edit-replacement)
1792 (define-key map "E" 'edit-replacement)
1793 (define-key map "," 'act-and-show)
1794 (define-key map "q" 'exit)
1796 (define-key map [return] 'exit)
1797 (define-key map "." 'act-and-exit)
1798 (define-key map "\C-r" 'edit)
1799 (define-key map "\C-w" 'delete-and-edit)
1800 (define-key map "\C-l" 'recenter)
1801 (define-key map "!" 'automatic)
1802 (define-key map "^" 'backup)
1803 (define-key map "\C-h" 'help)
1804 (define-key map [f1] 'help)
1805 (define-key map [help] 'help)
1806 (define-key map "?" 'help)
1807 (define-key map "\C-g" 'quit)
1808 (define-key map "\C-]" 'quit)
1809 (define-key map "\C-v" 'scroll-up)
1810 (define-key map "\M-v" 'scroll-down)
1811 (define-key map [next] 'scroll-up)
1812 (define-key map [prior] 'scroll-down)
1813 (define-key map [?\C-\M-v] 'scroll-other-window)
1814 (define-key map [M-next] 'scroll-other-window)
1815 (define-key map [?\C-\M-\S-v] 'scroll-other-window-down)
1816 (define-key map [M-prior] 'scroll-other-window-down)
1817 ;; Binding ESC would prohibit the M-v binding. Instead, callers
1818 ;; should check for ESC specially.
1819 ;; (define-key map "\e" 'exit-prefix)
1820 (define-key map [escape] 'exit-prefix)
1821 map)
1822 "Keymap of responses to questions posed by commands like `query-replace'.
1824 The valid answers include `act', `skip', `act-and-show',
1825 `act-and-exit', `exit', `exit-prefix', `recenter', `scroll-up',
1826 `scroll-down', `scroll-other-window', `scroll-other-window-down',
1827 `edit', `edit-replacement', `delete-and-edit', `automatic',
1828 `backup', `quit', and `help'.
1830 This keymap is used by `y-or-n-p' as well as `query-replace'.")
1832 (defvar multi-query-replace-map
1833 (let ((map (make-sparse-keymap)))
1834 (set-keymap-parent map query-replace-map)
1835 (define-key map "Y" 'automatic-all)
1836 (define-key map "N" 'exit-current)
1837 map)
1838 "Keymap that defines additional bindings for multi-buffer replacements.
1839 It extends its parent map `query-replace-map' with new bindings to
1840 operate on a set of buffers/files. The difference with its parent map
1841 is the additional answers `automatic-all' to replace all remaining
1842 matches in all remaining buffers with no more questions, and
1843 `exit-current' to skip remaining matches in the current buffer
1844 and to continue with the next buffer in the sequence.")
1846 (defun replace-match-string-symbols (n)
1847 "Process a list (and any sub-lists), expanding certain symbols.
1848 Symbol Expands To
1849 N (match-string N) (where N is a string of digits)
1850 #N (string-to-number (match-string N))
1851 & (match-string 0)
1852 #& (string-to-number (match-string 0))
1853 # replace-count
1855 Note that these symbols must be preceded by a backslash in order to
1856 type them using Lisp syntax."
1857 (while (consp n)
1858 (cond
1859 ((consp (car n))
1860 (replace-match-string-symbols (car n))) ;Process sub-list
1861 ((symbolp (car n))
1862 (let ((name (symbol-name (car n))))
1863 (cond
1864 ((string-match "^[0-9]+$" name)
1865 (setcar n (list 'match-string (string-to-number name))))
1866 ((string-match "^#[0-9]+$" name)
1867 (setcar n (list 'string-to-number
1868 (list 'match-string
1869 (string-to-number (substring name 1))))))
1870 ((string= "&" name)
1871 (setcar n '(match-string 0)))
1872 ((string= "#&" name)
1873 (setcar n '(string-to-number (match-string 0))))
1874 ((string= "#" name)
1875 (setcar n 'replace-count))))))
1876 (setq n (cdr n))))
1878 (defun replace-eval-replacement (expression count)
1879 (let* ((replace-count count)
1880 err
1881 (replacement
1882 (condition-case err
1883 (eval expression)
1884 (error
1885 (error "Error evaluating replacement expression: %S" err)))))
1886 (if (stringp replacement)
1887 replacement
1888 (prin1-to-string replacement t))))
1890 (defun replace-quote (replacement)
1891 "Quote a replacement string.
1892 This just doubles all backslashes in REPLACEMENT and
1893 returns the resulting string. If REPLACEMENT is not
1894 a string, it is first passed through `prin1-to-string'
1895 with the `noescape' argument set.
1897 `match-data' is preserved across the call."
1898 (save-match-data
1900 (if (stringp replacement)
1901 replacement
1902 (prin1-to-string replacement t))
1903 t t)))
1905 (defun replace-loop-through-replacements (data count)
1906 ;; DATA is a vector containing the following values:
1907 ;; 0 next-rotate-count
1908 ;; 1 repeat-count
1909 ;; 2 next-replacement
1910 ;; 3 replacements
1911 (if (= (aref data 0) count)
1912 (progn
1913 (aset data 0 (+ count (aref data 1)))
1914 (let ((next (cdr (aref data 2))))
1915 (aset data 2 (if (consp next) next (aref data 3))))))
1916 (car (aref data 2)))
1918 (defun replace-match-data (integers reuse &optional new)
1919 "Like `match-data', but markers in REUSE get invalidated.
1920 If NEW is non-nil, it is set and returned instead of fresh data,
1921 but coerced to the correct value of INTEGERS."
1922 (or (and new
1923 (progn
1924 (set-match-data new)
1925 (and (eq new reuse)
1926 (eq (null integers) (markerp (car reuse)))
1927 new)))
1928 (match-data integers reuse t)))
1930 (defun replace-match-maybe-edit (newtext fixedcase literal noedit match-data backward)
1932 FIXEDCASE, LITERAL are passed to `replace-match' (which see).
1935 is made (to save time). MATCH-DATA is used for the replacement.
1936 In case editing is done, it is changed to use markers.
1939 passed in. If LITERAL is set, no checking is done, anyway."
1940 (unless (or literal noedit)
1941 (setq noedit t)
1943 newtext)
1944 (setq newtext
1945 (read-string "Edit replacement string: "
1946 (prog1
1947 (cons
1948 (replace-match "" t t newtext 3)
1949 (1+ (match-beginning 3)))
1950 (setq match-data
1951 (replace-match-data
1952 nil match-data match-data))))
1953 noedit nil)))
1954 (set-match-data match-data)
1955 (replace-match newtext fixedcase literal)
1956 ;; `replace-match' leaves point at the end of the replacement text,
1957 ;; so move point to the beginning when replacing backward.
1958 (when backward (goto-char (nth 0 match-data)))
1959 noedit)
1961 (defvar replace-search-function nil
1962 "Function to use when searching for strings to replace.
1963 It is used by `query-replace' and `replace-string', and is called
1964 with three arguments, as if it were `search-forward'.")
1966 (defvar replace-re-search-function nil
1967 "Function to use when searching for regexps to replace.
1968 It is used by `query-replace-regexp', `replace-regexp',
1969 `query-replace-regexp-eval', and `map-query-replace-regexp'.
1970 It is called with three arguments, as if it were
1971 `re-search-forward'.")
1973 (defun replace-search (search-string limit regexp-flag delimited-flag
1974 case-fold-search backward)
1975 "Search for the next occurrence of SEARCH-STRING to replace."
1976 ;; Let-bind global isearch-* variables to values used
1977 ;; to search the next replacement. These let-bindings
1978 ;; should be effective both at the time of calling
1979 ;; `isearch-search-fun-default' and also at the
1980 ;; time of funcalling `search-function'.
1981 ;; These isearch-* bindings can't be placed higher
1982 ;; outside of this function because then another I-search
1983 ;; used after `recursive-edit' might override them.
1984 (let* ((isearch-regexp regexp-flag)
1985 (isearch-word delimited-flag)
1986 (isearch-lax-whitespace
1987 replace-lax-whitespace)
1988 (isearch-regexp-lax-whitespace
1989 replace-regexp-lax-whitespace)
1990 (isearch-case-fold-search case-fold-search)
1991 (isearch-adjusted nil)
1992 (isearch-nonincremental t) ; don't use lax word mode
1993 (isearch-forward (not backward))
1994 (search-function
1995 (or (if regexp-flag
1996 replace-re-search-function
1997 replace-search-function)
1998 (isearch-search-fun-default))))
1999 (funcall search-function search-string limit t)))
2001 (defvar replace-overlay nil)
2003 (defun replace-highlight (match-beg match-end range-beg range-end
2004 search-string regexp-flag delimited-flag
2005 case-fold-search backward)
2006 (if query-replace-highlight
2007 (if replace-overlay
2008 (move-overlay replace-overlay match-beg match-end (current-buffer))
2009 (setq replace-overlay (make-overlay match-beg match-end))
2010 (overlay-put replace-overlay 'priority 1001) ;higher than lazy overlays
2011 (overlay-put replace-overlay 'face 'query-replace)))
2012 (if query-replace-lazy-highlight
2013 (let ((isearch-string search-string)
2014 (isearch-regexp regexp-flag)
2015 (isearch-word delimited-flag)
2016 (isearch-lax-whitespace
2017 replace-lax-whitespace)
2018 (isearch-regexp-lax-whitespace
2019 replace-regexp-lax-whitespace)
2020 (isearch-case-fold-search case-fold-search)
2021 (isearch-forward (not backward))
2022 (isearch-other-end match-beg)
2023 (isearch-error nil))
2024 (isearch-lazy-highlight-new-loop range-beg range-end))))
2026 (defun replace-dehighlight ()
2027 (when replace-overlay
2028 (delete-overlay replace-overlay))
2029 (when query-replace-lazy-highlight
2030 (lazy-highlight-cleanup lazy-highlight-cleanup)
2031 (setq isearch-lazy-highlight-last-string nil))
2032 ;; Close overlays opened by `isearch-range-invisible' in `perform-replace'.
2033 (isearch-clean-overlays))
2035 (defun perform-replace (from-string replacements
2036 query-flag regexp-flag delimited-flag
2037 &optional repeat-count map start end backward)
2038 "Subroutine of `query-replace'. Its complexity handles interactive queries.
2039 Don't use this in your own program unless you want to query and set the mark
2040 just as `query-replace' does. Instead, write a simple loop like this:
2045 which will run faster and probably do exactly what you want. Please
2046 see the documentation of `replace-match' to find out how to simulate
2047 `case-replace'.
2049 This function returns nil if and only if there were no matches to
2050 make, or the user didn't cancel the call."
2051 (or map (setq map query-replace-map))
2052 (and query-flag minibuffer-auto-raise
2053 (raise-frame (window-frame (minibuffer-window))))
2054 (let* ((case-fold-search
2055 (if (and case-fold-search search-upper-case)
2056 (isearch-no-upper-case-p from-string regexp-flag)
2057 case-fold-search))
2058 (nocasify (not (and case-replace case-fold-search)))
2059 (literal (or (not regexp-flag) (eq regexp-flag 'literal)))
2060 (search-string from-string)
2061 (real-match-data nil) ; The match data for the current match.
2062 (next-replacement nil)
2063 ;; This is non-nil if we know there is nothing for the user
2064 ;; to edit in the replacement.
2065 (noedit nil)
2066 (keep-going t)
2067 (stack nil)
2068 (replace-count 0)
2069 (skip-read-only-count 0)
2070 (skip-filtered-count 0)
2071 (skip-invisible-count 0)
2072 (nonempty-match nil)
2073 (multi-buffer nil)
2074 (recenter-last-op nil) ; Start cycling order with initial position.
2076 ;; If non-nil, it is marker saying where in the buffer to stop.
2077 (limit nil)
2079 ;; Data for the next match. If a cons, it has the same format as
2080 ;; (match-data); otherwise it is t if a match is possible at point.
2081 (match-again t)
2083 (message
2084 (if query-flag
2085 (apply 'propertize
2086 (substitute-command-keys
2088 minibuffer-prompt-properties))))
2090 ;; If region is active, in Transient Mark mode, operate on region.
2091 (if backward
2092 (when end
2093 (setq limit (copy-marker (min start end)))
2094 (goto-char (max start end))
2095 (deactivate-mark))
2096 (when start
2097 (setq limit (copy-marker (max start end)))
2098 (goto-char (min start end))
2099 (deactivate-mark)))
2101 ;; If last typed key in previous call of multi-buffer perform-replace
2102 ;; was `automatic-all', don't ask more questions in next files
2103 (when (eq (lookup-key map (vector last-input-event)) 'automatic-all)
2104 (setq query-flag nil multi-buffer t))
2106 ;; REPLACEMENTS is either a string, a list of strings, or a cons cell
2107 ;; containing a function and its first argument. The function is
2108 ;; called to generate each replacement like this:
2109 ;; (funcall (car replacements) (cdr replacements) replace-count)
2110 ;; It must return a string.
2111 (cond
2112 ((stringp replacements)
2113 (setq next-replacement replacements
2114 replacements nil))
2115 ((stringp (car replacements)) ; If it isn't a string, it must be a cons
2116 (or repeat-count (setq repeat-count 1))
2117 (setq replacements (cons 'replace-loop-through-replacements
2118 (vector repeat-count repeat-count
2119 replacements replacements)))))
2121 (when query-replace-lazy-highlight
2122 (setq isearch-lazy-highlight-last-string nil))
2124 (push-mark)
2125 (undo-boundary)
2126 (unwind-protect
2127 ;; Loop finding occurrences that perhaps should be replaced.
2128 (while (and keep-going
2129 (if backward
2130 (not (or (bobp) (and limit (<= (point) limit))))
2131 (not (or (eobp) (and limit (>= (point) limit)))))
2132 ;; Use the next match if it is already known;
2133 ;; otherwise, search for a match after moving forward
2134 ;; one char if progress is required.
2135 (setq real-match-data
2136 (cond ((consp match-again)
2137 (goto-char (if backward
2138 (nth 0 match-again)
2139 (nth 1 match-again)))
2140 (replace-match-data
2141 t real-match-data match-again))
2142 ;; MATCH-AGAIN non-nil means accept an
2143 ;; adjacent match.
2144 (match-again
2145 (and
2146 (replace-search search-string limit
2147 regexp-flag delimited-flag
2148 case-fold-search backward)
2149 ;; For speed, use only integers and
2150 ;; reuse the list used last time.
2151 (replace-match-data t real-match-data)))
2152 ((and (if backward
2153 (> (1- (point)) (point-min))
2154 (< (1+ (point)) (point-max)))
2155 (or (null limit)
2156 (if backward
2157 (> (1- (point)) limit)
2158 (< (1+ (point)) limit))))
2159 ;; If not accepting adjacent matches,
2160 ;; move one char to the right before
2161 ;; searching again. Undo the motion
2162 ;; if the search fails.
2163 (let ((opoint (point)))
2164 (forward-char (if backward -1 1))
2165 (if (replace-search search-string limit
2166 regexp-flag delimited-flag
2167 case-fold-search backward)
2168 (replace-match-data
2169 t real-match-data)
2170 (goto-char opoint)
2171 nil))))))
2173 ;; Record whether the match is nonempty, to avoid an infinite loop
2174 ;; repeatedly matching the same empty string.
2175 (setq nonempty-match
2176 (/= (nth 0 real-match-data) (nth 1 real-match-data)))
2178 ;; If the match is empty, record that the next one can't be
2179 ;; adjacent.
2181 ;; Otherwise, if matching a regular expression, do the next
2182 ;; match now, since the replacement for this match may
2183 ;; affect whether the next match is adjacent to this one.
2184 ;; If that match is empty, don't use it.
2185 (setq match-again
2186 (and nonempty-match
2187 (or (not regexp-flag)
2188 (and (if backward
2189 (looking-back search-string)
2190 (looking-at search-string))
2191 (let ((match (match-data)))
2192 (and (/= (nth 0 match) (nth 1 match))
2193 match))))))
2195 (cond
2196 ;; Optionally ignore matches that have a read-only property.
2197 ((not (or (not query-replace-skip-read-only)
2198 (not (text-property-not-all
2199 (nth 0 real-match-data) (nth 1 real-match-data)
2200 'read-only nil))))
2201 (setq skip-read-only-count (1+ skip-read-only-count)))
2202 ;; Optionally filter out matches.
2203 ((not (funcall isearch-filter-predicate
2204 (nth 0 real-match-data) (nth 1 real-match-data)))
2205 (setq skip-filtered-count (1+ skip-filtered-count)))
2206 ;; Optionally ignore invisible matches.
2207 ((not (or (eq search-invisible t)
2208 ;; Don't open overlays for automatic replacements.
2209 (and (not query-flag) search-invisible)
2210 ;; Open hidden overlays for interactive replacements.
2211 (not (isearch-range-invisible
2212 (nth 0 real-match-data) (nth 1 real-match-data)))))
2213 (setq skip-invisible-count (1+ skip-invisible-count)))
2214 (t
2215 ;; Calculate the replacement string, if necessary.
2216 (when replacements
2217 (set-match-data real-match-data)
2218 (setq next-replacement
2219 (funcall (car replacements) (cdr replacements)
2220 replace-count)))
2221 (if (not query-flag)
2222 (progn
2223 (unless (or literal noedit)
2224 (replace-highlight
2225 (nth 0 real-match-data) (nth 1 real-match-data)
2226 start end search-string
2227 regexp-flag delimited-flag case-fold-search backward))
2228 (setq noedit
2229 (replace-match-maybe-edit
2230 next-replacement nocasify literal
2231 noedit real-match-data backward)
2232 replace-count (1+ replace-count)))
2233 (undo-boundary)
2234 (let (done replaced key def)
2235 ;; Loop reading commands until one of them sets done,
2236 ;; which means it has finished handling this
2237 ;; occurrence. Any command that sets `done' should
2238 ;; leave behind proper match data for the stack.
2239 ;; Commands not setting `done' need to adjust
2240 ;; `real-match-data'.
2241 (while (not done)
2242 (set-match-data real-match-data)
2243 (replace-highlight
2244 (match-beginning 0) (match-end 0)
2245 start end search-string
2246 regexp-flag delimited-flag case-fold-search backward)
2247 ;; Bind message-log-max so we don't fill up the message log
2248 ;; with a bunch of identical messages.
2249 (let ((message-log-max nil)
2250 (replacement-presentation
2251 (if query-replace-show-replacement
2252 (save-match-data
2253 (set-match-data real-match-data)
2254 (match-substitute-replacement next-replacement
2255 nocasify literal))
2256 next-replacement)))
2257 (message message
2258 (query-replace-descr from-string)
2259 (query-replace-descr replacement-presentation)))
2260 (setq key (read-event))
2261 ;; Necessary in case something happens during read-event
2262 ;; that clobbers the match data.
2263 (set-match-data real-match-data)
2264 (setq key (vector key))
2265 (setq def (lookup-key map key))
2266 ;; Restore the match data while we process the command.
2267 (cond ((eq def 'help)
2268 (with-output-to-temp-buffer "*Help*"
2269 (princ
2270 (concat "Query replacing "
2271 (if delimited-flag
2272 (or (and (symbolp delimited-flag)
2273 (get delimited-flag 'isearch-message-prefix))
2274 "word ") "")
2275 (if regexp-flag "regexp " "")
2276 (if backward "backward " "")
2277 from-string " with "
2279 (substitute-command-keys
2280 query-replace-help)))
2281 (with-current-buffer standard-output
2282 (help-mode))))
2283 ((eq def 'exit)
2284 (setq keep-going nil)
2285 (setq done t))
2286 ((eq def 'exit-current)
2287 (setq multi-buffer t keep-going nil done t))
2288 ((eq def 'backup)
2289 (if stack
2290 (let ((elt (pop stack)))
2291 (goto-char (nth 0 elt))
2292 (setq replaced (nth 1 elt)
2293 real-match-data
2294 (replace-match-data
2295 t real-match-data
2296 (nth 2 elt))))
2297 (message "No previous match")
2298 (ding 'no-terminate)
2299 (sit-for 1)))
2300 ((eq def 'act)
2301 (or replaced
2302 (setq noedit
2303 (replace-match-maybe-edit
2304 next-replacement nocasify literal
2305 noedit real-match-data backward)
2306 replace-count (1+ replace-count)))
2307 (setq done t replaced t))
2308 ((eq def 'act-and-exit)
2309 (or replaced
2310 (setq noedit
2311 (replace-match-maybe-edit
2312 next-replacement nocasify literal
2313 noedit real-match-data backward)
2314 replace-count (1+ replace-count)))
2315 (setq keep-going nil)
2316 (setq done t replaced t))
2317 ((eq def 'act-and-show)
2318 (if (not replaced)
2319 (setq noedit
2320 (replace-match-maybe-edit
2321 next-replacement nocasify literal
2322 noedit real-match-data backward)
2323 replace-count (1+ replace-count)
2324 real-match-data (replace-match-data
2325 t real-match-data)
2326 replaced t)))
2327 ((or (eq def 'automatic) (eq def 'automatic-all))
2328 (or replaced
2329 (setq noedit
2330 (replace-match-maybe-edit
2331 next-replacement nocasify literal
2332 noedit real-match-data backward)
2333 replace-count (1+ replace-count)))
2334 (setq done t query-flag nil replaced t)
2335 (if (eq def 'automatic-all) (setq multi-buffer t)))
2336 ((eq def 'skip)
2337 (setq done t))
2338 ((eq def 'recenter)
2339 ;; `this-command' has the value `query-replace',
2340 ;; so we need to bind it to `recenter-top-bottom'
2341 ;; to allow it to detect a sequence of `C-l'.
2342 (let ((this-command 'recenter-top-bottom)
2343 (last-command 'recenter-top-bottom))
2344 (recenter-top-bottom)))
2345 ((eq def 'edit)
2346 (let ((opos (point-marker)))
2347 (setq real-match-data (replace-match-data
2348 nil real-match-data
2349 real-match-data))
2350 (goto-char (match-beginning 0))
2351 (save-excursion
2352 (save-window-excursion
2353 (recursive-edit)))
2354 (goto-char opos)
2355 (set-marker opos nil))
2356 ;; Before we make the replacement,
2357 ;; decide whether the search string
2358 ;; can match again just after this match.
2359 (if (and regexp-flag nonempty-match)
2360 (setq match-again (and (looking-at search-string)
2361 (match-data)))))
2362 ;; Edit replacement.
2363 ((eq def 'edit-replacement)
2364 (setq real-match-data (replace-match-data
2365 nil real-match-data
2366 real-match-data)
2367 next-replacement
2368 (read-string "Edit replacement string: "
2369 next-replacement)
2370 noedit nil)
2371 (if replaced
2372 (set-match-data real-match-data)
2373 (setq noedit
2374 (replace-match-maybe-edit
2375 next-replacement nocasify literal noedit
2376 real-match-data backward)
2377 replaced t))
2378 (setq done t))
2380 ((eq def 'delete-and-edit)
2381 (replace-match "" t t)
2382 (setq real-match-data (replace-match-data
2383 nil real-match-data))
2384 (replace-dehighlight)
2385 (save-excursion (recursive-edit))
2386 (setq replaced t))
2387 ;; Note: we do not need to treat `exit-prefix'
2388 ;; specially here, since we reread
2389 ;; any unrecognized character.
2390 (t
2391 (setq this-command 'mode-exited)
2392 (setq keep-going nil)
2393 (setq unread-command-events
2394 (append (listify-key-sequence key)
2395 unread-command-events))
2396 (setq done t)))
2397 (when query-replace-lazy-highlight
2398 ;; Force lazy rehighlighting only after replacements.
2399 (if (not (memq def '(skip backup)))
2400 (setq isearch-lazy-highlight-last-string nil)))
2401 (unless (eq def 'recenter)
2402 ;; Reset recenter cycling order to initial position.
2403 (setq recenter-last-op nil)))
2404 ;; Record previous position for ^ when we move on.
2405 ;; Change markers to numbers in the match data
2406 ;; since lots of markers slow down editing.
2407 (push (list (point) replaced
2408 ;;; If the replacement has already happened, all we need is the
2409 ;;; current match start and end. We could get this with a trivial
2410 ;;; match like
2411 ;;; (save-excursion (goto-char (match-beginning 0))
2412 ;;; (search-forward (match-string 0))
2413 ;;; (match-data t))
2414 ;;; if we really wanted to avoid manually constructing match data.
2415 ;;; Adding current-buffer is necessary so that match-data calls can
2416 ;;; return markers which are appropriate for editing.
2417 (if replaced
2418 (list
2419 (match-beginning 0)
2420 (match-end 0)
2421 (current-buffer))
2422 (match-data t)))
2423 stack))))))
2425 (replace-dehighlight))
2426 (or unread-command-events
2427 (message "Replaced %d occurrence%s%s"
2428 replace-count
2429 (if (= replace-count 1) "" "s")
2430 (if (> (+ skip-read-only-count
2431 skip-filtered-count
2432 skip-invisible-count) 0)
2433 (format " (skipped %s)"
2434 (mapconcat
2435 'identity
2436 (delq nil (list
2437 (if (> skip-read-only-count 0)
2438 (format "%s read-only"
2439 skip-read-only-count))
2440 (if (> skip-invisible-count 0)
2441 (format "%s invisible"
2442 skip-invisible-count))
2443 (if (> skip-filtered-count 0)
2444 (format "%s filtered out"
2445 skip-filtered-count))))
2446 ", "))
2447 "")))
2448 (or (and keep-going stack) multi-buffer)))
2450 ;;; replace.el ends here