From 29f128f625735cec363fb580e545c116d2189745 Mon Sep 17 00:00:00 2001 From: "Richard M. Stallman" Date: Thu, 4 Mar 2004 16:54:08 +0000 Subject: [PATCH] (isearch-*-char): New arg WANT-BACKSLASH. (isearch-{-char): New function. (isearch-mode-map): Bind { to isearch-{-char. --- lisp/isearch.el | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/lisp/isearch.el b/lisp/isearch.el index 6eecd623cfd..91a2c34870d 100644 --- a/lisp/isearch.el +++ b/lisp/isearch.el @@ -301,6 +301,7 @@ Default value, nil, means edit the string instead." ;; Nothing special for + because it matches at least once. (define-key map "*" 'isearch-*-char) (define-key map "?" 'isearch-*-char) + (define-key map "{" 'isearch-{-char) (define-key map "|" 'isearch-|-char) ;; Turned off because I find I expect to get the global definition--rms. @@ -1186,21 +1187,30 @@ might return the position of the end of the line." (isearch-update)) +(defun isearch-{-char () + "Handle \{ specially in regexps." + (interactive) + (isearch-*-char t)) + ;; *, ?, and | chars can make a regexp more liberal. ;; They can make a regexp match sooner or make it succeed instead of failing. ;; So go back to place last successful search started ;; or to the last ^S/^R (barrier), whichever is nearer. ;; + needs no special handling because the string must match at least once. -(defun isearch-*-char () - "Handle * and ? specially in regexps." +(defun isearch-*-char (&optional want-backslash) + "Handle * and ? specially in regexps. +When WANT-BACKSLASH is non-nil, do special handling for \{." (interactive) (if isearch-regexp (let ((idx (length isearch-string))) (while (and (> idx 0) (eq (aref isearch-string (1- idx)) ?\\)) (setq idx (1- idx))) - (when (= (mod (- (length isearch-string) idx) 2) 0) + ;; * and ? are special when not preceded by \. + ;; { is special when it is preceded by \. + (when (= (mod (- (length isearch-string) idx) 2) + (if want-backslash 1 0)) (setq isearch-adjusted t) ;; Get the isearch-other-end from before the last search. ;; We want to start from there, -- 2.39.2