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77 lines
2.7 KiB
77 lines
2.7 KiB
;;; nroam-unlinked.el --- Unlinked references section for nroam.el -*- lexical-binding: t; -*-
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;; Copyright (C) 2021 Nicolas Petton
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;; Author: Nicolas Petton <nico@petton.fr>
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This library provides an unlinked references nroam section for org-roam
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;; buffers.
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;;; Code:
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(require 'org-roam)
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(require 'nroam-utils)
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(declare-function nroam-register-section "nroam.el")
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(declare-function nroam-update "nroam.el")
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(defvar-local nroam-unlinked-show-references nil
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"When non-nil, show unlinked references for the current buffer.")
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(defun nroam-unlinked-register-section ()
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"Register `nroam-unlinked-section' as a section in nroam."
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(nroam-register-section #'nroam-unlinked-section))
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(defun nroam-unlinked-section ()
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"Insert `org-roam' unlinked references for the current buffer."
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(nroam-unlinked--insert-heading)
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(if nroam-unlinked-show-references
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(nroam-unlinked--insert-references)
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(nroam-unlinked--insert-toggle-button)))
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(defun nroam-unlinked--insert-heading ()
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"Insert the heading for unlinked references."
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(nroam--insert-heading 2 "Unlinked references"))
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(defun nroam-unlinked--insert-references ()
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"Insert unlinked references for the current buffer."
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(let (content)
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(save-window-excursion
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(org-roam-unlinked-references)
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(let ((buf (current-buffer)))
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(goto-char (point-min))
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(search-forward "* Unlinked References\n" nil t)
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(setq content (buffer-substring (point) (point-max)))
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(kill-buffer buf)))
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(insert content)))
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(defun nroam-unlinked--insert-toggle-button ()
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"Insert a button to show unlinked references."
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(let ((beg (point)))
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(insert "[Show unlinked references]")
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(make-text-button beg (point) 'action #'nroam-unlinked--show-references)))
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(defun nroam-unlinked--show-references (&rest _)
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"Search for and show unlinked references."
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(let ((inhibit-read-only t)
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(pos (point-at-bol)))
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(setq nroam-unlinked-show-references t)
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(nroam-update)
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(goto-char pos)
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(org-back-to-heading)))
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(provide 'nroam-unlinked)
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;;; nroam-unlinked.el ends here
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