2017-12-05 10:33:59 +00:00
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;;; org-tempo.el --- Template expansion for Org structures -*- lexical-binding: t; -*-
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2021-01-01 19:55:31 +00:00
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;; Copyright (C) 2017-2021 Free Software Foundation, Inc.
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2017-12-05 10:33:59 +00:00
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;;
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;; Author: Rasmus Pank Roulund <emacs at pank dot eu>
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;; Keywords: outlines, hypermedia, calendar, wp
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2020-10-24 18:22:33 +00:00
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;; Homepage: https://orgmode.org
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2017-12-05 10:33:59 +00:00
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;;
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;; This file is part of GNU Emacs.
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;;
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;; GNU Emacs 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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;; GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;
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;;; Commentary:
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;;
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;; Org Tempo reimplements completions of structure template before
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;; point like `org-try-structure-completion' in Org v9.1 and earlier.
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;; For example, strings like "<e" at the beginning of the line will be
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;; expanded to an example block.
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;;
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;; All blocks defined in `org-structure-template-alist' are added as
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;; Org Tempo shortcuts, in addition to keywords defined in
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;; `org-tempo-keywords-alist'.
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;;
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;; `tempo' can also be used to define more sophisticated keywords
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;; completions. See the section "Additional keywords" below for
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;; examples.
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;;
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;;; Code:
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(require 'tempo)
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(require 'cl-lib)
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2018-03-31 06:51:10 +00:00
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(require 'org)
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2017-12-05 10:33:59 +00:00
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2018-02-03 23:24:01 +00:00
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(defvar org-structure-template-alist)
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2017-12-05 10:33:59 +00:00
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(defgroup org-tempo nil
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"Template expansion of Org structures."
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:tag "Org structure"
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:group 'org)
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(defvar org-tempo-tags nil
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"Tempo tags for Org mode.")
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(defcustom org-tempo-keywords-alist
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'(("L" . "latex")
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("H" . "html")
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("A" . "ascii")
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("i" . "index"))
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"Keyword completion elements.
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2018-04-27 22:46:25 +00:00
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This is an alist of KEY characters and corresponding KEYWORDS,
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just like `org-structure-template-alist'. The tempo snippet
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\"<KEY\" will be expanded using the KEYWORD value. For example
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\"<L\" at the beginning of a line is expanded to \"#+latex:\".
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2021-03-12 11:11:17 +00:00
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Do not use \"I\" as a KEY, as it is reserved for expanding
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\"#+include\"."
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:group 'org-tempo
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:type '(repeat (cons (string :tag "Key")
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(string :tag "Keyword")))
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:package-version '(Org . "9.2"))
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;;; Org Tempo functions and setup.
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(defun org-tempo-setup ()
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"Setup tempo tags and match finder for the current buffer."
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(org-tempo--update-maybe)
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(tempo-use-tag-list 'org-tempo-tags)
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(setq-local tempo-match-finder "^ *\\(<[[:word:]]+\\)\\="))
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(defun org-tempo--keys ()
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"Return a list of all Org Tempo expansion strings, like \"<s\"."
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(mapcar (lambda (pair) (format "<%s" (car pair)))
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(append org-structure-template-alist
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org-tempo-keywords-alist)))
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(defun org-tempo--update-maybe ()
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"Check and add new Org Tempo templates if necessary.
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In particular, if new entries were added to
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`org-structure-template-alist' or `org-tempo-keywords-alist', new
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Tempo templates will be added."
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(unless (cl-every (lambda (key) (assoc key org-tempo-tags))
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(org-tempo--keys))
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(org-tempo-add-templates)))
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(defun org-tempo-add-templates ()
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"Update all Org Tempo templates.
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Go through `org-structure-template-alist' and
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`org-tempo-keywords-alist' and update tempo templates."
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2018-05-27 12:44:49 +00:00
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(mapc 'org--check-org-structure-template-alist '(org-structure-template-alist
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org-tempo-keywords-alist))
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(let ((keys (org-tempo--keys)))
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;; Check for duplicated snippet keys and warn if any are found.
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(when (> (length keys) (length (delete-dups keys)))
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(warn
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"Duplicated keys in `org-structure-template-alist' and `org-tempo-keywords-alist'"))
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;; Remove any keys already defined in case they have been updated.
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2018-02-04 07:56:15 +00:00
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(setq org-tempo-tags
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(cl-remove-if (lambda (tag) (member (car tag) keys)) org-tempo-tags))
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(mapc #'org-tempo-add-block org-structure-template-alist)
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(mapc #'org-tempo-add-keyword org-tempo-keywords-alist)))
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(defun org-tempo-add-block (entry)
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"Add block entry from `org-structure-template-alist'."
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(let* ((key (format "<%s" (car entry)))
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(name (cdr entry))
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(special (member name '("src" "export"))))
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(tempo-define-template (format "org-%s" (replace-regexp-in-string " " "-" name))
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`(,(format "#+begin_%s%s" name (if special " " ""))
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,(when special 'p) '> n ,(unless special 'p) n
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,(format "#+end_%s" (car (split-string name " ")))
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>)
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key
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(format "Insert a %s block" name)
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'org-tempo-tags)))
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(defun org-tempo-add-keyword (entry)
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"Add keyword entry from `org-tempo-keywords-alist'."
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(let* ((key (format "<%s" (car entry)))
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(name (cdr entry)))
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(tempo-define-template (format "org-%s" (replace-regexp-in-string " " "-" name))
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`(,(format "#+%s: " name) p '>)
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key
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(format "Insert a %s keyword" name)
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'org-tempo-tags)))
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2018-02-11 11:02:47 +00:00
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(defun org-tempo-complete-tag (&rest _)
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"Look for a tag and expand it silently.
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Unlike to `tempo-complete-tag', do not give a signal if a partial
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completion or no match at all is found. Return nil if expansion
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didn't succeed."
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(org-tempo--update-maybe)
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;; `tempo-complete-tag' returns its SILENT argument when there is no
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;; completion available at all.
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(not (eq 'fail (tempo-complete-tag 'fail))))
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;;; Additional keywords
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(defun org-tempo--include-file ()
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"Add #+include: and a file name."
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(let ((inhibit-quit t))
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(unless (with-local-quit
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(prog1 t
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(insert
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(format "#+include: %S "
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(file-relative-name
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(read-file-name "Include file: "))))))
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(insert "<I")
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(setq quit-flag nil))))
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(tempo-define-template "org-include"
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'((org-tempo--include-file)
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p >)
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"<I"
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"Include keyword"
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'org-tempo-tags)
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;;; Setup of Org Tempo
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;;
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;; Org Tempo is set up with each new Org buffer and potentially in the
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;; current Org buffer.
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(add-hook 'org-mode-hook 'org-tempo-setup)
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(add-hook 'org-tab-before-tab-emulation-hook 'org-tempo-complete-tag)
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;; Enable Org Tempo in all open Org buffers.
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(dolist (b (org-buffer-list 'files))
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(with-current-buffer b (org-tempo-setup)))
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(provide 'org-tempo)
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;;; org-tempo.el ends here
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