;;; org-ql-find.el --- Find headings with completion using org-ql -*- lexical-binding: t; -*- ;; Copyright (C) 2022 Adam Porter ;; Author: Adam Porter ;; This program is free software; you can redistribute it and/or modify ;; it under the terms of the GNU General Public License as published by ;; the Free Software Foundation, either version 3 of the License, or ;; (at your option) any later version. ;; This program is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License ;; along with this program. If not, see . ;;; Commentary: ;; This library provides a way to quickly find and go to Org entries ;; selected with Emacs's built-in completions API (so it works with ;; packages that extend it, like Vertico, Marginalia, etc). It works ;; like `helm-org-ql' but does not require Helm. ;;; Code: (require 'cl-lib) (require 'org) (require 'org-ql) ;;;; Customization (defgroup org-ql-find nil "Options for `org-ql-find'." :group 'org-ql) (defcustom org-ql-find-reverse-paths t "Whether to reverse Org outline paths in `org-ql-find' results." :type 'boolean) (defcustom org-ql-find-goto-hook '(org-show-entry) "Functions called when selecting an entry." :type 'hook) (defface org-ql-find-snippet '((t (:inherit font-lock-comment-face))) "Snippets.") ;;;; Functions ;;;###autoload (cl-defun org-ql-find (buffers-files &key query-prefix query-filter (prompt "Find entry: ")) "Go to an Org entry in BUFFERS-FILES selected by searching entries with `org-ql'. Interactively, with universal prefix, select multiple buffers to search with completion. QUERY-PREFIX may be a string to prepend to the query (e.g. use \"heading:\" to only search headings, easily creating a custom command that saves the user from having to type it). QUERY-FILTER may be a function through which the query the user types is filtered before execution (e.g. it could replace spaces with commas to turn multiple tokens, which would normally be treated as multiple predicates, into multiple arguments to a single predicate)." (interactive (list (if current-prefix-arg (mapcar #'get-buffer (completing-read-multiple "Buffers: " (mapcar #'buffer-name (cl-remove-if-not (lambda (buffer) (eq 'org-mode (buffer-local-value 'major-mode buffer))) (buffer-list))) nil t)) (current-buffer)))) ;; Emacs's completion API is not always easy to understand, ;; especially when using "programmed completion." This code was ;; made possible by the example Clemens Radermacher shared at ;; . (let ((table (make-hash-table :test #'equal)) (window-width (window-width))) (cl-labels ((action () (font-lock-ensure (point-at-bol) (point-at-eol)) (let* ((path (thread-first (org-get-outline-path t t) (org-format-outline-path window-width nil "") (org-split-string ""))) (path (if org-ql-find-reverse-paths (string-join (nreverse path) "\\") (string-join path "/")))) (puthash path (point-marker) table) path)) (affix (completions) (cl-loop for completion in completions for marker = (gethash completion table) for todo-state = (if-let (it (org-entry-get marker "TODO")) (concat (propertize it 'face (org-get-todo-face it)) " ") "") for snippet = (if-let (it (snippet marker)) (propertize (concat " " it) 'face 'org-ql-find-snippet) "") collect (list completion todo-state snippet))) (annotate (candidate) (or (snippet (gethash candidate table)) "")) (snippet (marker) (org-with-point-at marker (org-end-of-meta-data t) (unless (org-at-heading-p) (let ((end (min (+ (point) 51) (org-entry-end-position)))) (truncate-string-to-width (replace-regexp-in-string "\n" " " (buffer-substring (point) end) t t) 50 nil nil t))))) (group (candidate transform) (pcase transform (`nil (buffer-name (marker-buffer (gethash candidate table)))) (_ candidate))) (try (string _table _pred point &optional _metadata) (cons string point)) (all (string table pred _point) (all-completions string table pred)) (collection (str _pred flag) (pcase flag ('metadata (list 'metadata (cons 'group-function #'group) (cons 'affixation-function #'affix) (cons 'annotation-function #'annotate))) (`t (unless (string-empty-p str) (when query-filter (setf str (funcall query-filter str))) (org-ql-select buffers-files (org-ql--query-string-to-sexp (concat query-prefix str)) :action #'action)))))) (let* ((completion-styles '(org-ql-find)) (completion-styles-alist (list (list 'org-ql-find #'try #'all "Org QL Find"))) (selected (completing-read prompt #'collection nil)) (marker (gethash selected table))) (with-current-buffer (marker-buffer marker) (goto-char marker) (display-buffer (current-buffer)) (run-hook-with-args 'org-ql-find-goto-hook)))))) ;;;###autoload (defun org-ql-find-heading (buffers-files) "Go to an Org entry in BUFFERS-FILES selected by searching with `org-ql'. Only headings are searched (using the \"heading:\" predicate). Interactively, with universal prefix, select multiple buffers to search with completion." (interactive (list (if current-prefix-arg (mapcar #'get-buffer (completing-read-multiple "Buffers: " (mapcar #'buffer-name (cl-remove-if-not (lambda (buffer) (eq 'org-mode (buffer-local-value 'major-mode buffer))) (buffer-list))) nil t)) (current-buffer)))) (org-ql-find buffers-files :prompt "Find heading: " :query-prefix "heading:")) ;;;###autoload (defun org-ql-find-path (buffers-files) "Go to an Org entry in BUFFERS-FILES selected by searching with `org-ql'. Only outline paths are searched (using the \"outline-path:\" predicate). Interactively, with universal prefix, select multiple buffers to search with completion." (interactive (list (if current-prefix-arg (mapcar #'get-buffer (completing-read-multiple "Buffers: " (mapcar #'buffer-name (cl-remove-if-not (lambda (buffer) (eq 'org-mode (buffer-local-value 'major-mode buffer))) (buffer-list))) nil t)) (current-buffer)))) (org-ql-find buffers-files :prompt "Find outline path: " :query-prefix "outline-path:")) (provide 'org-ql-find) ;;; org-ql-find.el ends here