From d797b7ad5d6af70d7d1ab082f824df07cf5bd536 Mon Sep 17 00:00:00 2001 From: Craig Jennings Date: Fri, 15 May 2026 00:54:01 -0500 Subject: feat(custom-buffer-file): extend buffer-source dispatch to mu4e and Info Add two dispatchers to cj/buffer-source-functions so C-; b p yields a useful link form in two more major modes. mu4e-view-mode returns "mu4e:msgid:" so the result pastes into org as a clickable link and matches mu4e's own org-protocol handler. Falls through to buffer-file-name when point isn't on a real message. Info-mode returns "info:(manual)node" -- the form org-info-store-link produces. file-name-base only strips one extension, so a compressed "emacs.info.gz" comes back as "emacs.info"; trim the trailing ".info" to get the bare manual name. Falls through when Info hasn't populated its current-file / current-node vars yet. Tests cover normal + boundary fallthrough for each new mode. --- modules/custom-buffer-file.el | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) (limited to 'modules/custom-buffer-file.el') diff --git a/modules/custom-buffer-file.el b/modules/custom-buffer-file.el index 8c6014d3..d8ce6bee 100644 --- a/modules/custom-buffer-file.el +++ b/modules/custom-buffer-file.el @@ -218,7 +218,28 @@ When called interactively, prompts for confirmation if target file exists." '((eww-mode . (lambda () (eww-current-url))) (elfeed-show-mode . (lambda () (elfeed-entry-link elfeed-show-entry))) (dired-mode . (lambda () (dired-get-filename nil t))) - (dirvish-mode . (lambda () (dired-get-filename nil t)))) + (dirvish-mode . (lambda () (dired-get-filename nil t))) + (mu4e-view-mode . (lambda () + (when-let* ((msg (mu4e-message-at-point)) + (id (plist-get msg :message-id))) + (format "mu4e:msgid:%s" id)))) + (Info-mode . (lambda () + (when (and (boundp 'Info-current-file) + (boundp 'Info-current-node) + Info-current-file + Info-current-node) + ;; Strip the compression suffix (via + ;; file-name-base) AND the .info suffix. + ;; "emacs.info.gz" -> base "emacs.info" -> + ;; manual "emacs". + (let* ((base (file-name-base Info-current-file)) + (manual (if (string-suffix-p ".info" base) + (substring base 0 -5) + base)) + (node Info-current-node)) + (when (and (not (string-empty-p manual)) + (not (string-empty-p node))) + (format "info:(%s)%s" manual node))))))) "Alist mapping major-mode -> thunk returning the buffer's \"source\". Each thunk is called with no arguments and should return a string -- cgit v1.2.3