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Thu, 24 Nov 2022 23:35:29 -0800 (PST) In-Reply-To: <86bkowztrn.fsf@mail.linkov.net> (Juri Linkov's message of "Thu, 24 Nov 2022 09:48:52 +0200") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:248964 Archived-At: Juri Linkov writes: >> So it might be generally useful to have an interactive command to filter >> out whatever one might prefer. If you agree, of course. > > This would be a nice addition to outline.el. For example, new commands > outline-hide-by-regexp and outline-show-by-regexp that could use > existing code extracted from outline--show-headings-up-to-level: > > (outline-map-region > (lambda () > (when (let ((beg (point)) > (end (progn (outline-end-of-heading) (point)))) > (string-match-p heading-regexp (buffer-substring beg end))) > ;; hide entry when heading match regexp > (outline-hide-entry)))) (Hi =F0=9F=91=8B Nothing much to add, just thought I'd express my wholehea= rted agreement about this being a useful addition to outline.el; I've missed Org's "sparse tree" feature in other outline contexts, and I look forward to using it in more than just xref buffers, e.g. Diff or prog-mode. (info "(org) Sparse Trees") C-x p f ORG-NEWS TAB RET C-c / / export RET Not saying that outline-show-by-regexp should be a 1:1 reimplementation, e.g. highlighting matches or searching section bodies might not be essential; still, thought it'd be worth mentioning this bit of "prior art")