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find buffer by regexp, then iterate (very cool)
From: |
Emanuel Berg |
Subject: |
find buffer by regexp, then iterate (very cool) |
Date: |
Thu, 30 Jun 2016 15:45:52 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) |
(require 'cl-lib)
(defun buffer-names ()
"Get a list of all `buffer-name's."
(mapcar #'buffer-name (buffer-list)) )
(defun switch-to-buffer-regexp (buffer-regexp &optional ori-buffer)
(let*((original-buffer (or ori-buffer (current-buffer)))
(hit (cl-find-if
(lambda (b) (string-match buffer-regexp b))
(buffer-names) ))
(hit-buffer (when hit (get-buffer hit)))
(same-buffer (when hit-buffer (eq original-buffer hit-buffer))) )
(if hit-buffer
(if same-buffer
(if ori-buffer
(progn
(message "(This buffer is the only hit!)")
(switch-to-buffer ori-buffer) )
(progn
(bury-buffer)
(switch-to-buffer-regexp buffer-regexp original-buffer) ))
(switch-to-buffer hit-buffer) )
(error "No hit: %s" buffer-regexp) )))
;; Try these -
;; (global-set-key "\C-ca" (lambda () (interactive) (switch-to-buffer-regexp
"\*Article\*")))
;; (global-set-key "\C-ch" (lambda () (interactive) (switch-to-buffer-regexp
"\*Help\*")))
;; (global-set-key "\C-cc" (lambda () (interactive) (switch-to-buffer-regexp
"\*compilation\*")))
;; - and this, the most interesting case:
;; create four posts, go to a post, then hit
;; again to iterate!
;; (require 'gnus)
;; (dotimes (i 4) (gnus-post-news 'post "")) ;; create 4 posts
;; (global-set-key "\C-cu" (lambda () (interactive) (switch-to-buffer-regexp
"\*unsent posting\*.*")))
(provide 'switch-to-buffer-regexp)
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