2019-01-01 21:08:24 +00:00
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;;; org-num.el --- Dynamic Headlines Numbering -*- lexical-binding: t; -*-
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2022-01-01 20:10:55 +00:00
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;; Copyright (C) 2018-2022 Free Software Foundation, Inc.
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2019-01-01 21:08:24 +00:00
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;; Author: Nicolas Goaziou <mail@nicolasgoaziou.fr>
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;; Keywords: outlines, hypermedia, calendar, wp
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2019-12-04 01:19:14 +00:00
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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2019-01-01 21:08:24 +00:00
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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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2019-12-04 01:19:14 +00:00
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;; GNU Emacs is distributed in the hope that it will be useful,
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2019-01-01 21:08:24 +00:00
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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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2019-12-04 01:19:14 +00:00
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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2019-01-01 21:08:24 +00:00
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;;; Commentary:
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;; This library provides dynamic numbering for Org headlines. Use
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;;
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;; <M-x org-num-mode>
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;;
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;; to toggle it.
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;;
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;; You can select what is numbered according to level, tags, COMMENT
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2021-09-16 10:32:43 +00:00
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;; keyword, or UNNUMBERED property. You can also skip footnotes
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;; sections. See `org-num-max-level', `org-num-skip-tags',
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2019-01-01 21:08:24 +00:00
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;; `org-num-skip-commented', `org-num-skip-unnumbered', and
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;; `org-num-skip-footnotes' for details.
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;;
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;; You can also control how the numbering is displayed by setting
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;;`org-num-face' and `org-num-format-function'.
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;;
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;; Internally, the library handles an ordered list, per buffer
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;; position, of overlays in `org-num--overlays'. These overlays are
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;; marked with the `org-num' property set to a non-nil value.
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;;
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;; Overlays store the level of the headline in the `level' property,
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;; and the face used for the numbering in `numbering-face'.
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;;
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;; The `skip' property is set to t when the corresponding headline has
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;; some characteristic -- e.g., a node property, or a tag -- that
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;; prevents it from being numbered.
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;;
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;; An overlay with `org-num' property set to `invalid' is called an
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;; invalid overlay. Modified overlays automatically become invalid
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;; and set `org-num--invalid-flag' to a non-nil value. After
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;; a change, `org-num--invalid-flag' indicates numbering needs to be
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;; updated and invalid overlays indicate where the buffer needs to be
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;; parsed. So does `org-num--missing-overlay' variable. See
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;; `org-num--verify' function for details.
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;;
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;; Numbering display is done through the `after-string' property.
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;;; Code:
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2022-08-04 13:53:05 +00:00
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(require 'org-macs)
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(org-assert-version)
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2019-01-01 21:08:24 +00:00
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(require 'cl-lib)
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(require 'org-macs)
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* lisp/org-agenda.el: Use lexical-binding
- Removed the global (defvar date) and (defvar entry) so as not to
conflict with function arguments of that name. Instead I added such
`defvar`s in the body of each of the functions where it
seemed needed.
- I added some FIXMEs for some issues I found along the way.
- Added an `org-dlet` macro, just like I had done for `calendar-dlet`,
but I also use `defvar` "manually" at some places, when splitting an
existing `let` into a mix of `let`s and `dlet`s seemed too much trouble.
- Removed uses of `org-let and `org-let2` not only because I consider
them offensive to my sense of aesthetics but also because they're
basically incompatible with lexical scoping.
I replaced them with uses of `cl-progv` which are a bit more verbose.
Maybe we should define some `org-progv` macro on top of `cl-progv` to
make the code less verbose, but I didn't do that because I like the
fact that the current code makes uses of `eval` a bit more obvious
(since these behave differently with lexical scoping than with
lexical binding, it seemed worthwhile).
- Removed the use of `eval` in `org-store-agenda-views` which was only
placed there in order to use a macro before it's defined (it would
have been simpler/cleaner to just move that functions *after* the
macro, but with the new code the problem doesn't occur any more anyway).
- Replaced a few `(lambda...) with actual closures.
Detailed changes follow:
(date, entry): Don't declare as being globally dynbound.
(org-agenda-format-date-aligned): Remove unused var `weekyear`.
(org-agenda-mode): `run-mode-hooks` is always available nowadays.
(org-agenda-undo): Remove unused var `last-undo-buffer`.
(org-agenda): Rename arg to `keys` and then dyn-bind it as `org-keys`.
Remove unused vars `buf` and `key`.
(org-agenda): Use `pcase` and `cl-progv` instead of `org-let`.
(org-let, org-let2): Mark as obsolete.
(org-agenda-run-series): Use `cl-progv` instead of `org-let` and `org-let2`.
(org-agenda-run-series): New function.
(org--batch-agenda): New function extracted from `org-batch-agenda`.
(org-batch-agenda): Use it.
(org--batch-agenda-csv): New function extracted from `org-batch-agenda-csv`.
(org-batch-agenda-csv): Use it.
(org--batch-store-agenda-views): New function, extracted from
`org-batch-store-agenda-views`.
(org-store-agenda-views, org-batch-store-agenda-views): Use it.
(org--batch-store-agenda-views): Use `cl-progv` instead of
`org-eval-in-environment`.
(org-agenda-write): Use `cl-progv` instead of `org-let`.
Use `with-current-buffer`.
(org-agenda-filter-any): Use `cl-some` instead of `eval`.
(org-agenda-list): Remove unused var `e`.
(org-search-view): η-reduce.
(crm-separator): Declare var.
(org-agenda-skip-if): Remove unused var `beg`.
(org-agenda-list-stuck-projects): Use a closure rather than `(lambda..).
(diary-modify-entry-list-string-function, diary-file-name-prefix)
(diary-display-function): Declare vars.
(org-diary): Declare `date` and `entry` as dynbound.
(org-agenda-get-day-entries): Use `org-dlet`.
(org-agenda-get-timestamps, org-agenda-get-progress)
(org-agenda-get-deadlines, org-agenda-get-scheduled, org-agenda-get-blocks):
Declare `date` as dynbound.
(org-agenda-get-sexps, org-class): Declare `date` and `entry` as dynbound.
(org-agenda-format-item): Declare the vars mentioned in
`org-compile-prefix-format` as dyn-bound.
Also binding `extra`, suggested by Kyle Meyer <kyle@kyleam.com>.
(org-compile-prefix-format): Remove unused var `e`.
Use `member` rather than or+equal.
(org-set-sorting-strategy): Minor simplification.
(org-entries-lessp): Use `org-dlet`.
(org-agenda-redo): Declare var `org-agenda-tag-filter-while-redo`.
(org-agenda-redo): Use `cl-progv` rather than `org-let`.
(org-agenda-filter): Remove unused var `rpl-fn`.
Use `org-pushnew-to-end` to replace `add-to-list` on lexical var.
(org-agenda-filter-by-tag): Remove unused var `n`.
(org-agenda-filter-apply): Use `org-dlet`.
(org-agenda-compute-starting-span): Remove unused var `dg`.
(org-agenda-forward-block): Remove unused var `pos`.
(org-archive-from-agenda): Declare var.
(org-agenda-refile): Remove unused var `pos`.
(org-agenda-headline-snapshot-before-repeat): Declare var.
(org-agenda-todo): Remove redundant use of `bound-and-true-p`.
(org-agenda-add-note): Remove unused var `hdmarker` and unused `arg`.
(org-agenda-change-all-lines): Remove unused var `pl`.
(org-agenda-priority): Remove unused var `marker`.
(org-agenda-set-effort): Remove unused var `newhead`.
(org-agenda-schedule): Remove unused var `type`.
(org-agenda-clock-cancel): Remove unused `arg`.
(org-agenda-execute-calendar-command): Use `org-dlet`.
(org-agenda-bulk-action): Use closures instead of `(lambda ...).
(org-agenda-show-the-flagging-note): Remove unused vars `heading` and
`newhead`.
(org-agenda-remove-flag): Avoid `setq`.
* testing/org-test.el (org--compile-when): New macro.
(org-test-jump): Use it so compilation doesn't fail or generate broken
code when `jump` is not available.
* testing/lisp/test-org-src.el:
* testing/lisp/test-org-attach.el:
* testing/lisp/test-org-agenda.el:
* testing/lisp/test-ob-java.el: Pass explicit filename to `require`
so as not to rely on ".../testing" being in `load-path` during compilation.
* lisp/org-num.el: Require` org`.
* lisp/org-macs.el (org-eval-in-environment): Declare obsolete.
(org-dlet, org-pushnew-to-end): New macros.
* doc/Makefile (org.texi, orgguide.texi, %_letter.tex): Simplify quoting.
* contrib/lisp/ob-sclang.el: Don't crash compilation when `sclang`
is not available.
* contrib/lisp/ob-clojure-literate.el: Don't crash compilation when `cider`
is not available.
* contrib/lisp/ob-arduino.el: Don't crash compilation when `arduino-mode`
is not available.
* .gitignore: Add files generated during `make packages/org`.
2021-02-23 20:47:29 +00:00
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(require 'org) ;Otherwise `org-num--comment-re' burps on `org-comment-string'
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2019-01-01 21:08:24 +00:00
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(defvar org-comment-string)
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(defvar org-complex-heading-regexp)
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(defvar org-cycle-level-faces)
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2019-02-05 07:43:40 +00:00
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(defvar org-footnote-section)
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(defvar org-level-faces)
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2019-01-01 21:08:24 +00:00
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(defvar org-n-level-faces)
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(defvar org-odd-levels-only)
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(declare-function org-back-to-heading "org" (&optional invisible-ok))
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(declare-function org-entry-get "org" (pom property &optional inherit literal-nil))
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(declare-function org-reduced-level "org" (l))
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;;; Customization
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(defcustom org-num-face nil
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"Face to use for numbering.
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When nil, use the same face as the headline. This value is
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ignored if `org-num-format-function' specifies a face for its
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output."
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:group 'org-appearance
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2019-02-05 08:19:56 +00:00
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:package-version '(Org . "9.3")
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2019-01-01 21:08:24 +00:00
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:type '(choice (const :tag "Like the headline" nil)
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(face :tag "Use face"))
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:safe (lambda (val) (or (null val) (facep val))))
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* lisp/org-agenda.el: Use lexical-binding
- Removed the global (defvar date) and (defvar entry) so as not to
conflict with function arguments of that name. Instead I added such
`defvar`s in the body of each of the functions where it
seemed needed.
- I added some FIXMEs for some issues I found along the way.
- Added an `org-dlet` macro, just like I had done for `calendar-dlet`,
but I also use `defvar` "manually" at some places, when splitting an
existing `let` into a mix of `let`s and `dlet`s seemed too much trouble.
- Removed uses of `org-let and `org-let2` not only because I consider
them offensive to my sense of aesthetics but also because they're
basically incompatible with lexical scoping.
I replaced them with uses of `cl-progv` which are a bit more verbose.
Maybe we should define some `org-progv` macro on top of `cl-progv` to
make the code less verbose, but I didn't do that because I like the
fact that the current code makes uses of `eval` a bit more obvious
(since these behave differently with lexical scoping than with
lexical binding, it seemed worthwhile).
- Removed the use of `eval` in `org-store-agenda-views` which was only
placed there in order to use a macro before it's defined (it would
have been simpler/cleaner to just move that functions *after* the
macro, but with the new code the problem doesn't occur any more anyway).
- Replaced a few `(lambda...) with actual closures.
Detailed changes follow:
(date, entry): Don't declare as being globally dynbound.
(org-agenda-format-date-aligned): Remove unused var `weekyear`.
(org-agenda-mode): `run-mode-hooks` is always available nowadays.
(org-agenda-undo): Remove unused var `last-undo-buffer`.
(org-agenda): Rename arg to `keys` and then dyn-bind it as `org-keys`.
Remove unused vars `buf` and `key`.
(org-agenda): Use `pcase` and `cl-progv` instead of `org-let`.
(org-let, org-let2): Mark as obsolete.
(org-agenda-run-series): Use `cl-progv` instead of `org-let` and `org-let2`.
(org-agenda-run-series): New function.
(org--batch-agenda): New function extracted from `org-batch-agenda`.
(org-batch-agenda): Use it.
(org--batch-agenda-csv): New function extracted from `org-batch-agenda-csv`.
(org-batch-agenda-csv): Use it.
(org--batch-store-agenda-views): New function, extracted from
`org-batch-store-agenda-views`.
(org-store-agenda-views, org-batch-store-agenda-views): Use it.
(org--batch-store-agenda-views): Use `cl-progv` instead of
`org-eval-in-environment`.
(org-agenda-write): Use `cl-progv` instead of `org-let`.
Use `with-current-buffer`.
(org-agenda-filter-any): Use `cl-some` instead of `eval`.
(org-agenda-list): Remove unused var `e`.
(org-search-view): η-reduce.
(crm-separator): Declare var.
(org-agenda-skip-if): Remove unused var `beg`.
(org-agenda-list-stuck-projects): Use a closure rather than `(lambda..).
(diary-modify-entry-list-string-function, diary-file-name-prefix)
(diary-display-function): Declare vars.
(org-diary): Declare `date` and `entry` as dynbound.
(org-agenda-get-day-entries): Use `org-dlet`.
(org-agenda-get-timestamps, org-agenda-get-progress)
(org-agenda-get-deadlines, org-agenda-get-scheduled, org-agenda-get-blocks):
Declare `date` as dynbound.
(org-agenda-get-sexps, org-class): Declare `date` and `entry` as dynbound.
(org-agenda-format-item): Declare the vars mentioned in
`org-compile-prefix-format` as dyn-bound.
Also binding `extra`, suggested by Kyle Meyer <kyle@kyleam.com>.
(org-compile-prefix-format): Remove unused var `e`.
Use `member` rather than or+equal.
(org-set-sorting-strategy): Minor simplification.
(org-entries-lessp): Use `org-dlet`.
(org-agenda-redo): Declare var `org-agenda-tag-filter-while-redo`.
(org-agenda-redo): Use `cl-progv` rather than `org-let`.
(org-agenda-filter): Remove unused var `rpl-fn`.
Use `org-pushnew-to-end` to replace `add-to-list` on lexical var.
(org-agenda-filter-by-tag): Remove unused var `n`.
(org-agenda-filter-apply): Use `org-dlet`.
(org-agenda-compute-starting-span): Remove unused var `dg`.
(org-agenda-forward-block): Remove unused var `pos`.
(org-archive-from-agenda): Declare var.
(org-agenda-refile): Remove unused var `pos`.
(org-agenda-headline-snapshot-before-repeat): Declare var.
(org-agenda-todo): Remove redundant use of `bound-and-true-p`.
(org-agenda-add-note): Remove unused var `hdmarker` and unused `arg`.
(org-agenda-change-all-lines): Remove unused var `pl`.
(org-agenda-priority): Remove unused var `marker`.
(org-agenda-set-effort): Remove unused var `newhead`.
(org-agenda-schedule): Remove unused var `type`.
(org-agenda-clock-cancel): Remove unused `arg`.
(org-agenda-execute-calendar-command): Use `org-dlet`.
(org-agenda-bulk-action): Use closures instead of `(lambda ...).
(org-agenda-show-the-flagging-note): Remove unused vars `heading` and
`newhead`.
(org-agenda-remove-flag): Avoid `setq`.
* testing/org-test.el (org--compile-when): New macro.
(org-test-jump): Use it so compilation doesn't fail or generate broken
code when `jump` is not available.
* testing/lisp/test-org-src.el:
* testing/lisp/test-org-attach.el:
* testing/lisp/test-org-agenda.el:
* testing/lisp/test-ob-java.el: Pass explicit filename to `require`
so as not to rely on ".../testing" being in `load-path` during compilation.
* lisp/org-num.el: Require` org`.
* lisp/org-macs.el (org-eval-in-environment): Declare obsolete.
(org-dlet, org-pushnew-to-end): New macros.
* doc/Makefile (org.texi, orgguide.texi, %_letter.tex): Simplify quoting.
* contrib/lisp/ob-sclang.el: Don't crash compilation when `sclang`
is not available.
* contrib/lisp/ob-clojure-literate.el: Don't crash compilation when `cider`
is not available.
* contrib/lisp/ob-arduino.el: Don't crash compilation when `arduino-mode`
is not available.
* .gitignore: Add files generated during `make packages/org`.
2021-02-23 20:47:29 +00:00
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(defcustom org-num-format-function #'org-num-default-format
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2019-01-01 21:08:24 +00:00
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"Function used to display numbering.
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It is called with one argument, a list of numbers, and should
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return a string, or nil. When nil, no numbering is displayed.
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Any `face' text property on the returned string overrides
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`org-num-face'."
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:group 'org-appearance
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2019-02-05 08:19:56 +00:00
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:package-version '(Org . "9.3")
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2021-10-02 17:46:29 +00:00
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:type 'function)
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2019-01-01 21:08:24 +00:00
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(defcustom org-num-max-level nil
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"Level below which headlines are not numbered.
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When set to nil, all headlines are numbered."
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:group 'org-appearance
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2019-02-05 08:19:56 +00:00
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:package-version '(Org . "9.3")
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2019-01-01 21:08:24 +00:00
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:type '(choice (const :tag "Number everything" nil)
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(integer :tag "Stop numbering at level"))
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:safe (lambda (val) (or (null val) (wholenump val))))
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(defcustom org-num-skip-commented nil
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"Non-nil means commented sub-trees are not numbered."
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:group 'org-appearance
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2019-02-05 08:19:56 +00:00
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:package-version '(Org . "9.3")
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2019-01-01 21:08:24 +00:00
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:type 'boolean
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:safe #'booleanp)
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(defcustom org-num-skip-footnotes nil
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"Non-nil means footnotes sections are not numbered."
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:group 'org-appearance
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2019-02-05 08:19:56 +00:00
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:package-version '(Org . "9.3")
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2019-01-01 21:08:24 +00:00
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:type 'boolean
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:safe #'booleanp)
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(defcustom org-num-skip-tags nil
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"List of tags preventing the numbering of sub-trees.
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For example, add \"ARCHIVE\" to this list to avoid numbering
|
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|
archived sub-trees.
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Tag in this list prevent numbering the whole sub-tree,
|
2020-09-23 11:35:55 +00:00
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irrespective to `org-use-tag-inheritance', or other means to
|
2019-01-01 21:08:24 +00:00
|
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|
control tag inheritance."
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:group 'org-appearance
|
2019-02-05 08:19:56 +00:00
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:package-version '(Org . "9.3")
|
2019-01-01 21:08:24 +00:00
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:type '(repeat (string :tag "Tag"))
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:safe (lambda (val) (and (listp val) (cl-every #'stringp val))))
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(defcustom org-num-skip-unnumbered nil
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|
"Non-nil means numbering obeys to UNNUMBERED property."
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:group 'org-appearance
|
2019-02-05 08:19:56 +00:00
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|
:package-version '(Org . "9.3")
|
2019-01-01 21:08:24 +00:00
|
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:type 'boolean
|
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|
:safe #'booleanp)
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;;; Internal Variables
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(defconst org-num--comment-re (format "\\`%s\\(?: \\|$\\)" org-comment-string)
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"Regexp matching a COMMENT keyword at headline beginning.")
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(defvar-local org-num--overlays nil
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"Ordered list of overlays used for numbering outlines.")
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(defvar-local org-num--skip-level nil
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"Level below which headlines from current tree are not numbered.
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|
When nil, all headlines are numbered. It is used to handle
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|
inheritance of no-numbering attributes.")
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(defvar-local org-num--numbering nil
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"Current headline numbering.
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A numbering is a list of integers, in reverse order. So numbering
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for headline \"1.2.3\" is (3 2 1).")
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(defvar-local org-num--missing-overlay nil
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"Buffer position signaling a headline without an overlay.")
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(defvar-local org-num--invalid-flag nil
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"Non-nil means an overlay became invalid since last update.")
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|
;;; Internal Functions
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(defsubst org-num--headline-regexp ()
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"Return regexp matching a numbered headline."
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(if (null org-num-max-level) (org-with-limited-levels org-outline-regexp-bol)
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(format "^\\*\\{1,%d\\} "
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|
(if org-odd-levels-only (1- (* 2 org-num-max-level))
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org-num-max-level))))
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(defsubst org-num--overlay-p (o)
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"Non-nil if overlay O is a numbering overlay."
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|
(overlay-get o 'org-num))
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(defsubst org-num--valid-overlay-p (o)
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|
"Non-nil if overlay O is still active in the buffer."
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|
(not (eq 'invalid (overlay-get o 'org-num))))
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(defsubst org-num--invalidate-overlay (o)
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|
"Mark overlay O as invalid.
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|
Update `org-num--invalid-flag' accordingly."
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|
(overlay-put o 'org-num 'invalid)
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|
(setq org-num--invalid-flag t))
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|
2019-01-09 22:25:57 +00:00
|
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|
(defun org-num--clear ()
|
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|
"Remove all numbering overlays in current buffer."
|
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|
|
|
(mapc #'delete-overlay org-num--overlays)
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|
(setq org-num--overlays nil))
|
|
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|
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|
2019-01-01 21:08:24 +00:00
|
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|
|
(defun org-num--make-overlay (numbering level skip)
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|
"Return overlay for numbering headline at point.
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|
NUMBERING is the numbering to use, as a list of integers, or nil
|
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|
if nothing should be displayed. LEVEL is the level of the
|
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|
headline. SKIP is its skip value.
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|
Assume point is at a headline."
|
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|
(let ((after-edit-functions
|
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|
|
(list (lambda (o &rest _) (org-num--invalidate-overlay o))))
|
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|
(o (save-excursion
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|
(beginning-of-line)
|
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|
(skip-chars-forward "*")
|
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|
|
(make-overlay (line-beginning-position) (1+ (point))))))
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|
(overlay-put o 'org-num t)
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|
(overlay-put o 'skip skip)
|
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|
(overlay-put o 'level level)
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|
(overlay-put o 'numbering-face
|
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|
(or org-num-face
|
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|
|
;; Compute face that would be used at the
|
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|
|
|
;; headline. We cannot extract it from the
|
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|
|
;; buffer: at the time the overlay is created,
|
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|
|
|
|
;; Font Lock has not proceeded yet.
|
|
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|
|
(nth (if org-cycle-level-faces
|
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|
|
|
(% (1- level) org-n-level-faces)
|
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|
|
(1- (min level org-n-level-faces)))
|
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|
|
|
|
org-level-faces)))
|
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|
(overlay-put o 'modification-hooks after-edit-functions)
|
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|
|
(overlay-put o 'insert-in-front-hooks after-edit-functions)
|
|
|
|
|
|
(org-num--refresh-display o numbering)
|
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|
|
|
|
o))
|
|
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|
|
|
|
|
(defun org-num--refresh-display (overlay numbering)
|
|
|
|
|
|
"Refresh OVERLAY's display.
|
|
|
|
|
|
NUMBERING specifies the new numbering, as a list of integers, or
|
|
|
|
|
|
nil if nothing should be displayed. Assume OVERLAY is valid."
|
|
|
|
|
|
(let ((display (and numbering
|
|
|
|
|
|
(funcall org-num-format-function (reverse numbering)))))
|
|
|
|
|
|
(when (and display (not (get-text-property 0 'face display)))
|
|
|
|
|
|
(org-add-props display `(face ,(overlay-get overlay 'numbering-face))))
|
|
|
|
|
|
(overlay-put overlay 'after-string display)))
|
|
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|
|
|
|
|
|
|
|
(defun org-num--skip-value ()
|
|
|
|
|
|
"Return skip value for headline at point.
|
|
|
|
|
|
Value is t when headline should not be numbered, and nil
|
|
|
|
|
|
otherwise."
|
|
|
|
|
|
(org-match-line org-complex-heading-regexp)
|
|
|
|
|
|
(let ((title (match-string 4))
|
|
|
|
|
|
(tags (and org-num-skip-tags
|
|
|
|
|
|
(match-end 5)
|
|
|
|
|
|
(org-split-string (match-string 5) ":"))))
|
|
|
|
|
|
(or (and org-num-skip-footnotes
|
|
|
|
|
|
org-footnote-section
|
|
|
|
|
|
(equal title org-footnote-section))
|
|
|
|
|
|
(and org-num-skip-commented
|
2020-08-25 13:55:45 +00:00
|
|
|
|
title
|
2019-01-01 21:08:24 +00:00
|
|
|
|
(let ((case-fold-search nil))
|
|
|
|
|
|
(string-match org-num--comment-re title))
|
|
|
|
|
|
t)
|
|
|
|
|
|
(and org-num-skip-tags
|
|
|
|
|
|
(cl-some (lambda (tag) (member tag org-num-skip-tags))
|
|
|
|
|
|
tags)
|
|
|
|
|
|
t)
|
|
|
|
|
|
(and org-num-skip-unnumbered
|
|
|
|
|
|
(org-entry-get (point) "UNNUMBERED")
|
|
|
|
|
|
t))))
|
|
|
|
|
|
|
|
|
|
|
|
(defun org-num--current-numbering (level skip)
|
|
|
|
|
|
"Return numbering for current headline.
|
|
|
|
|
|
LEVEL is headline's level, and SKIP its skip value. Return nil
|
|
|
|
|
|
if headline should be skipped."
|
|
|
|
|
|
(cond
|
|
|
|
|
|
;; Skipped by inheritance.
|
|
|
|
|
|
((and org-num--skip-level (> level org-num--skip-level)) nil)
|
|
|
|
|
|
;; Skipped by a non-nil skip value; set `org-num--skip-level'
|
|
|
|
|
|
;; to skip the whole sub-tree later on.
|
|
|
|
|
|
(skip (setq org-num--skip-level level) nil)
|
|
|
|
|
|
(t
|
|
|
|
|
|
(setq org-num--skip-level nil)
|
|
|
|
|
|
;; Compute next numbering, and update `org-num--numbering'.
|
|
|
|
|
|
(let ((last-level (length org-num--numbering)))
|
|
|
|
|
|
(setq org-num--numbering
|
|
|
|
|
|
(cond
|
|
|
|
|
|
;; First headline : nil => (1), or (1 0)...
|
|
|
|
|
|
((null org-num--numbering) (cons 1 (make-list (1- level) 0)))
|
|
|
|
|
|
;; Sibling: (1 1) => (2 1).
|
|
|
|
|
|
((= level last-level)
|
|
|
|
|
|
(cons (1+ (car org-num--numbering)) (cdr org-num--numbering)))
|
|
|
|
|
|
;; Parent: (1 1 1) => (2 1), or (2).
|
|
|
|
|
|
((< level last-level)
|
|
|
|
|
|
(let ((suffix (nthcdr (- last-level level) org-num--numbering)))
|
|
|
|
|
|
(cons (1+ (car suffix)) (cdr suffix))))
|
|
|
|
|
|
;; Child: (1 1) => (1 1 1), or (1 0 1 1)...
|
|
|
|
|
|
(t
|
|
|
|
|
|
(append (cons 1 (make-list (- level last-level 1) 0))
|
|
|
|
|
|
org-num--numbering))))))))
|
|
|
|
|
|
|
|
|
|
|
|
(defun org-num--number-region (start end)
|
|
|
|
|
|
"Add numbering overlays between START and END positions.
|
|
|
|
|
|
When START or END are nil, use buffer boundaries. Narrowing, if
|
|
|
|
|
|
any, is ignored. Return the list of created overlays, newest
|
|
|
|
|
|
first."
|
|
|
|
|
|
(org-with-point-at (or start 1)
|
|
|
|
|
|
;; Do not match headline starting at START.
|
|
|
|
|
|
(when start (end-of-line))
|
|
|
|
|
|
(let ((regexp (org-num--headline-regexp))
|
|
|
|
|
|
(new nil))
|
|
|
|
|
|
(while (re-search-forward regexp end t)
|
|
|
|
|
|
(let* ((level (org-reduced-level
|
|
|
|
|
|
(- (match-end 0) (match-beginning 0) 1)))
|
|
|
|
|
|
(skip (org-num--skip-value))
|
|
|
|
|
|
(numbering (org-num--current-numbering level skip)))
|
|
|
|
|
|
;; Apply numbering to current headline. Store overlay for
|
|
|
|
|
|
;; the return value.
|
|
|
|
|
|
(push (org-num--make-overlay numbering level skip)
|
|
|
|
|
|
new)))
|
|
|
|
|
|
new)))
|
|
|
|
|
|
|
|
|
|
|
|
(defun org-num--update ()
|
|
|
|
|
|
"Update buffer's numbering.
|
|
|
|
|
|
This function removes invalid overlays and refreshes numbering
|
|
|
|
|
|
for the valid ones in the numbering overlays list. It also adds
|
|
|
|
|
|
missing overlays to that list."
|
|
|
|
|
|
(setq org-num--skip-level nil)
|
|
|
|
|
|
(setq org-num--numbering nil)
|
|
|
|
|
|
(let ((new-overlays nil)
|
|
|
|
|
|
(overlay nil))
|
|
|
|
|
|
(while (setq overlay (pop org-num--overlays))
|
|
|
|
|
|
(cond
|
|
|
|
|
|
;; Valid overlay.
|
|
|
|
|
|
;;
|
|
|
|
|
|
;; First handle possible missing overlays OVERLAY. If missing
|
|
|
|
|
|
;; overlay marker is pointing before next overlay and after the
|
|
|
|
|
|
;; last known overlay, make sure to parse the buffer between
|
|
|
|
|
|
;; these two overlays.
|
|
|
|
|
|
((org-num--valid-overlay-p overlay)
|
|
|
|
|
|
(let ((next (overlay-start overlay))
|
|
|
|
|
|
(last (and new-overlays (overlay-start (car new-overlays)))))
|
|
|
|
|
|
(cond
|
|
|
|
|
|
((null org-num--missing-overlay))
|
|
|
|
|
|
((> org-num--missing-overlay next))
|
|
|
|
|
|
((or (null last) (> org-num--missing-overlay last))
|
|
|
|
|
|
(setq org-num--missing-overlay nil)
|
|
|
|
|
|
(setq new-overlays (nconc (org-num--number-region last next)
|
|
|
|
|
|
new-overlays)))
|
|
|
|
|
|
;; If it is already after the last known overlay, reset it:
|
|
|
|
|
|
;; some previous invalid overlay already triggered the
|
|
|
|
|
|
;; necessary parsing.
|
|
|
|
|
|
(t
|
|
|
|
|
|
(setq org-num--missing-overlay nil))))
|
|
|
|
|
|
;; Update OVERLAY's numbering.
|
|
|
|
|
|
(let* ((level (overlay-get overlay 'level))
|
|
|
|
|
|
(skip (overlay-get overlay 'skip))
|
|
|
|
|
|
(numbering (org-num--current-numbering level skip)))
|
|
|
|
|
|
(org-num--refresh-display overlay numbering)
|
|
|
|
|
|
(push overlay new-overlays)))
|
|
|
|
|
|
;; Invalid overlay. It indicates that the buffer needs to be
|
|
|
|
|
|
;; parsed again between the two surrounding valid overlays or
|
|
|
|
|
|
;; buffer boundaries.
|
|
|
|
|
|
(t
|
|
|
|
|
|
;; Delete all consecutive invalid overlays: we re-create all
|
|
|
|
|
|
;; overlays between last valid overlay and the next one.
|
|
|
|
|
|
(delete-overlay overlay)
|
|
|
|
|
|
(while (and org-num--overlays
|
|
|
|
|
|
(not (org-num--valid-overlay-p (car org-num--overlays))))
|
|
|
|
|
|
(delete-overlay (pop org-num--overlays)))
|
|
|
|
|
|
;; Create and register new overlays.
|
|
|
|
|
|
(let ((last (and new-overlays (overlay-start (car new-overlays))))
|
|
|
|
|
|
(next (and org-num--overlays
|
|
|
|
|
|
(overlay-start (car org-num--overlays)))))
|
|
|
|
|
|
(setq new-overlays (nconc (org-num--number-region last next)
|
|
|
|
|
|
new-overlays))))))
|
|
|
|
|
|
;; If invalid position hasn't been handled yet, it must be located
|
|
|
|
|
|
;; between last valid overlay and end of the buffer. Parse that
|
|
|
|
|
|
;; area before returning.
|
|
|
|
|
|
(when org-num--missing-overlay
|
|
|
|
|
|
(let ((last (and new-overlays (overlay-start (car new-overlays)))))
|
|
|
|
|
|
(setq new-overlays (nconc (org-num--number-region last nil)
|
|
|
|
|
|
new-overlays))))
|
|
|
|
|
|
;; Numbering is now up-to-date. Reset invalid flag. Also return
|
|
|
|
|
|
;; `org-num--overlays' in a sorted fashion.
|
|
|
|
|
|
(setq org-num--invalid-flag nil)
|
|
|
|
|
|
(setq org-num--overlays (nreverse new-overlays))))
|
|
|
|
|
|
|
|
|
|
|
|
(defun org-num--verify (beg end _)
|
|
|
|
|
|
"Check numbering integrity; update it if necessary.
|
|
|
|
|
|
This function is meant to be used in `after-change-functions'.
|
|
|
|
|
|
See this variable for the meaning of BEG and END."
|
|
|
|
|
|
(setq org-num--missing-overlay nil)
|
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(save-match-data
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(org-with-point-at beg
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(let ((regexp (org-num--headline-regexp)))
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;; At this point, directly altered overlays between BEG and
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;; END are marked as invalid and will trigger a full update.
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;; However, there are still two cases to handle.
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;;
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;; First, some valid overlays may need to be invalidated, due
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;; to an indirect change. That happens when the skip value --
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;; see `org-num--skip-value' -- of the heading BEG belongs to
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;; is altered, or when deleting the newline character right
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;; before the next headline.
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(save-excursion
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;; Bail out if we're before first headline or within
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;; a headline too deep to be numbered.
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(when (and (org-with-limited-levels
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(ignore-errors (org-back-to-heading t)))
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(looking-at regexp))
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(pcase (get-char-property-and-overlay (point) 'org-num)
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(`(nil)
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;; At a headline, without a numbering overlay: change
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;; just created one. Mark it for parsing.
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(setq org-num--missing-overlay (point)))
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(`(t . ,o)
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;; Check if skip value changed. Invalidate overlay
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;; accordingly.
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(unless (eq (org-num--skip-value) (overlay-get o 'skip))
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(org-num--invalidate-overlay o)))
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(_ nil))))
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;; Deleting the newline character before a numbering overlay
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;; doesn't invalidate it, even though it could land in the
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;; middle of a line. Be sure to catch this case.
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(when (and (= beg end) (not (bolp)))
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(pcase (get-char-property-and-overlay (point) 'org-num)
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(`(t . ,o) (org-num--invalidate-overlay o))
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(_ nil)))
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;; Second, if nothing is marked as invalid, and therefore if
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;; no full update is due so far, changes may still have
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;; created new headlines, at BEG -- which is actually handled
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;; by the previous phase --, or, in case of a multi-line
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;; insertion, at END, or in-between.
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(unless (or org-num--invalid-flag
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org-num--missing-overlay
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(<= end (line-end-position))) ;single line change
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(forward-line)
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(when (or (re-search-forward regexp end 'move)
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;; Check if change created a headline after END.
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|
|
(progn (skip-chars-backward "*") (looking-at regexp)))
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(setq org-num--missing-overlay (line-beginning-position))))))
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;; Update numbering only if a headline was altered or created.
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|
(when (or org-num--missing-overlay org-num--invalid-flag)
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(org-num--update))))
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|
;;; Public Functions
|
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|
|
;;;###autoload
|
|
|
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|
|
(defun org-num-default-format (numbering)
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|
|
"Default numbering display function.
|
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|
|
NUMBERING is a list of numbers."
|
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|
|
(concat (mapconcat #'number-to-string numbering ".") " "))
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|
|
;;;###autoload
|
|
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|
|
(define-minor-mode org-num-mode
|
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|
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|
|
"Dynamic numbering of headlines in an Org buffer."
|
|
|
|
|
|
:lighter " o#"
|
|
|
|
|
|
(cond
|
|
|
|
|
|
(org-num-mode
|
|
|
|
|
|
(unless (derived-mode-p 'org-mode)
|
|
|
|
|
|
(user-error "Cannot activate headline numbering outside Org mode"))
|
|
|
|
|
|
(setq org-num--numbering nil)
|
|
|
|
|
|
(setq org-num--overlays (nreverse (org-num--number-region nil nil)))
|
2019-01-09 22:25:57 +00:00
|
|
|
|
(add-hook 'after-change-functions #'org-num--verify nil t)
|
|
|
|
|
|
(add-hook 'change-major-mode-hook #'org-num--clear nil t))
|
2019-01-01 21:08:24 +00:00
|
|
|
|
(t
|
2019-01-09 22:25:57 +00:00
|
|
|
|
(org-num--clear)
|
|
|
|
|
|
(remove-hook 'after-change-functions #'org-num--verify t)
|
|
|
|
|
|
(remove-hook 'change-major-mode-hook #'org-num--clear t))))
|
2019-01-01 21:08:24 +00:00
|
|
|
|
|
|
|
|
|
|
(provide 'org-num)
|
2020-02-18 21:57:37 +00:00
|
|
|
|
|
2020-02-18 22:37:24 +00:00
|
|
|
|
;; Local variables:
|
|
|
|
|
|
;; generated-autoload-file: "org-loaddefs.el"
|
|
|
|
|
|
;; End:
|
|
|
|
|
|
|
2019-01-01 21:08:24 +00:00
|
|
|
|
;;; org-num.el ends here
|