-;;; re-builder.el --- building Regexps with visual feedback
+;;; re-builder.el --- building Regexps with visual feedback -*- lexical-binding: t -*-
-;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+;; Copyright (C) 1999-2011 Free Software Foundation, Inc.
;; Author: Detlev Zundel <dzu@gnu.org>
;; Keywords: matching, lisp, tools
;; even the auto updates go all the way. Forcing an update overrides
;; this limit allowing an easy way to see all matches.
-;; Currently `re-builder' understands five different forms of input,
-;; namely `read', `string', `rx', and `sregex' syntax. Read
+;; Currently `re-builder' understands three different forms of input,
+;; namely `read', `string', and `rx' syntax. Read
;; syntax and string syntax are both delimited by `"'s and behave
;; according to their name. With the `string' syntax there's no need
;; to escape the backslashes and double quotes simplifying the editing
;; When editing a symbolic regular expression, only the first
;; expression in the RE Builder buffer is considered, which helps
;; limiting the extent of the expression like the `"'s do for the text
-;; modes. For the `sregex' syntax the function `sregex' is applied to
+;; modes. For the `rx' syntax the function `rx-to-string' is applied to
;; the evaluated expression read. So you can use quoted arguments
;; with something like '("findme") or you can construct arguments to
;; your hearts delight with a valid ELisp expression. (The compiled
(defcustom reb-re-syntax 'read
"Syntax for the REs in the RE Builder.
-Can either be `read', `string', `sregex', or `rx'."
+Can either be `read', `string', or `rx'."
:group 're-builder
:type '(choice (const :tag "Read syntax" read)
(const :tag "String syntax" string)
- (const :tag "`sregex' syntax" sregex)
(const :tag "`rx' syntax" rx)))
(defcustom reb-auto-match-limit 200
:help "Quit the RE Builder mode"))
(define-key menu-map [rt]
'(menu-item "Case sensitive" reb-toggle-case
- :button (:toggle . case-fold-search)
+ :button (:toggle . (with-current-buffer
+ reb-target-buffer
+ (null case-fold-search)))
:help "Toggle case sensitivity of searches for RE Builder target buffer"))
(define-key menu-map [rb]
'(menu-item "Change target buffer..." reb-change-target-buffer
(set (make-local-variable 'blink-matching-paren) nil)
(reb-mode-common))
+(defvar reb-lisp-mode-map
+ (let ((map (make-sparse-keymap)))
+ ;; Use the same "\C-c" keymap as `reb-mode' and use font-locking from
+ ;; `emacs-lisp-mode'
+ (define-key map "\C-c" (lookup-key reb-mode-map "\C-c"))
+ map))
+
(define-derived-mode reb-lisp-mode
emacs-lisp-mode "RE Builder Lisp"
"Major mode for interactively building symbolic Regular Expressions."
;; Pull in packages as needed
- (cond ((eq reb-re-syntax 'sregex) ; sregex is not autoloaded
- (require 'sregex)) ; right now..
- ((eq reb-re-syntax 'rx) ; rx-to-string is autoloaded
- (require 'rx))) ; require rx anyway
+ (cond ((memq reb-re-syntax '(sregex rx)) ; rx-to-string is autoloaded
+ (require 'rx))) ; require rx anyway
(reb-mode-common))
-;; Use the same "\C-c" keymap as `reb-mode' and use font-locking from
-;; `emacs-lisp-mode'
-(define-key reb-lisp-mode-map "\C-c"
- (lookup-key reb-mode-map "\C-c"))
-
(defvar reb-subexp-mode-map
(let ((m (make-keymap)))
(suppress-keymap m)
;;;###autoload
(defun re-builder ()
- "Construct a regexp interactively."
- (interactive)
+ "Construct a regexp interactively.
+This command makes the current buffer the \"target\" buffer of
+the regexp builder. It displays a buffer named \"*RE-Builder*\"
+in another window, initially containing an empty regexp.
+As you edit the regexp in the \"*RE-Builder*\" buffer, the
+matching parts of the target buffer will be highlighted."
+ (interactive)
(if (and (string= (buffer-name) reb-buffer)
(reb-mode-buffer-p))
(message "Already in the RE Builder")
(reb-update-regexp)
(reb-update-overlays subexp))
-(defun reb-auto-update (beg end lenold &optional force)
+(defun reb-auto-update (_beg _end _lenold &optional force)
"Called from `after-update-functions' to update the display.
BEG, END and LENOLD are passed in from the hook.
An actual update is only done if the regexp has changed or if the
(defun reb-cook-regexp (re)
"Return RE after processing it according to `reb-re-syntax'."
- (cond ((eq reb-re-syntax 'sregex)
- (apply 'sregex (eval (car (read-from-string re)))))
- ((eq reb-re-syntax 'rx)
+ (cond ((memq reb-re-syntax '(sregex rx))
(rx-to-string (eval (car (read-from-string re)))))
(t re)))
(remove-hook 'after-change-functions 'reb-auto-update t)
(remove-hook 'kill-buffer-hook 'reb-kill-buffer t)
(when (reb-mode-buffer-p)
- (reb-delete-overlays)
- (funcall (or (default-value 'major-mode) 'fundamental-mode)))))
+ (reb-delete-overlays))))
;; continue standard unloading
nil)
(provide 're-builder)
-;; arch-tag: 5c5515ac-4085-4524-a421-033f44f032e7
;;; re-builder.el ends here