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(vms-magic-right-square-brace, vms-magic-colon): New funcs.

In minibuffer-local-completion-map bind `]', `/' and `:' to them.
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1 parent 6d0e666 commit 214dd3980127aa120d457bdc481ddec315c1a000 Thien-Thi Nguyen committed May 25, 2005
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  1. +6 −0 lisp/ChangeLog
  2. +67 −0 lisp/vms-patch.el
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@@ -1,3 +1,9 @@
+2005-05-25 Thien-Thi Nguyen <ttn@gnu.org>
+
+ * vms-patch.el (vms-magic-right-square-brace, vms-magic-colon):
+ New funcs. In minibuffer-local-completion-map bind `]', `/'
+ and `:' to them.
+
2005-05-25 Stefan Monnier <monnier@iro.umontreal.ca>
* startup.el (normal-top-level): Allow modification of load-path while
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@@ -193,5 +193,72 @@ following bindings are established.
All other Emacs commands are still available."
t)
+;;;
+;;; Filename handling in the minibuffer
+;;;
+(defun vms-magic-right-square-brace ()
+ "\
+Insert a right square brace, but do other things first depending on context.
+During filename completion, when point is at the end of the line and the
+character before is not a right square brace, do one of three things before
+inserting the brace:
+ - If there are already two left square braces preceding, do nothing special.
+ - If there is a previous right-square-brace, convert it to dot.
+ - If the character before is dot, delete it.
+Additionally, if the preceding chars are right-square-brace followed by
+either \"-\" or \"..\", strip one level of directory hierarchy."
+ (interactive)
+ (when (and minibuffer-completing-file-name
+ (= (point) (point-max))
+ (not (= 93 (char-before))))
+ (cond
+ ;; Avoid clobbering: user:[one.path][another.path
+ ((search-backward "[" (field-beginning) t 2))
+ ((search-backward "]" (field-beginning) t)
+ (delete-char 1)
+ (insert ".")
+ (goto-char (point-max)))
+ ((= ?. (char-before))
+ (delete-char -1)))
+ (goto-char (point-max))
+ (let ((specs '(".." "-"))
+ (pmax (point-max)))
+ (while specs
+ (let* ((up (car specs))
+ (len (length up))
+ (cut (- (point) len)))
+ (when (and (< (1+ len) pmax)
+ (= ?. (char-before cut))
+ (string= up (buffer-substring cut (point))))
+ (delete-char (- (1+ len)))
+ (while (not (let ((c (char-before)))
+ (or (= ?. c) (= 91 c))))
+ (delete-char -1))
+ (when (= ?. (char-before)) (delete-char -1))
+ (setq specs nil)))
+ (setq specs (cdr specs)))))
+ (insert "]"))
+
+(defun vms-magic-colon ()
+ "\
+Insert a colon, but do other things first depending on context.
+During filename completion, when point is at the end of the line
+and the line contains a right square brace, remove all characters
+from the beginning of the line up to and including such brace.
+This enables one to type a new filespec without having to delete
+the old one."
+ (interactive)
+ (when (and minibuffer-completing-file-name
+ (= (point) (point-max))
+ (search-backward "]" (field-beginning) t))
+ (delete-region (field-beginning) (1+ (point)))
+ (goto-char (point-max)))
+ (insert ":"))
+
+(let ((m minibuffer-local-completion-map))
+ (define-key m "]" 'vms-magic-right-square-brace)
+ (define-key m "/" 'vms-magic-right-square-brace)
+ (define-key m ":" 'vms-magic-colon))
+
;;; arch-tag: c178494e-2c37-4d02-99b7-e47e615656cf
;;; vms-patch.el ends here

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