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1190 lines
41 KiB
EmacsLisp
1190 lines
41 KiB
EmacsLisp
;;; org-macs.el --- Top-level Definitions for Org -*- lexical-binding: t; -*-
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;; Copyright (C) 2004-2020 Free Software Foundation, Inc.
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;; Author: Carsten Dominik <carsten at orgmode dot org>
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;; Keywords: outlines, hypermedia, calendar, wp
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;; Homepage: https://orgmode.org
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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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;;
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;;; Commentary:
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;; This file contains macro definitions, defsubst definitions, other
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;; stuff needed for compilation and top-level forms in Org mode, as
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;; well lots of small functions that are not Org mode specific but
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;; simply generally useful stuff.
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;;; Code:
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(require 'cl-lib)
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(require 'format-spec)
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(declare-function org-string-collate-lessp "org-compat" (s1 s2 &optional locale ignore-case))
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(defvar org-ts-regexp0)
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;;; Macros
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(defmacro org-with-gensyms (symbols &rest body)
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(declare (debug (sexp body)) (indent 1))
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`(let ,(mapcar (lambda (s)
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`(,s (make-symbol (concat "--" (symbol-name ',s)))))
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symbols)
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,@body))
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;; Use `with-silent-modifications' to ignore cosmetic changes and
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;; `org-unmodified' to ignore real text modifications.
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(defmacro org-unmodified (&rest body)
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"Run BODY while preserving the buffer's `buffer-modified-p' state."
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(declare (debug (body)))
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(org-with-gensyms (was-modified)
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`(let ((,was-modified (buffer-modified-p)))
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(unwind-protect
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(let ((buffer-undo-list t)
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(inhibit-modification-hooks t))
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,@body)
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(set-buffer-modified-p ,was-modified)))))
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(defmacro org-without-partial-completion (&rest body)
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(declare (debug (body)))
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`(if (and (boundp 'partial-completion-mode)
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partial-completion-mode
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(fboundp 'partial-completion-mode))
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(unwind-protect
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(progn
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(partial-completion-mode -1)
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,@body)
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(partial-completion-mode 1))
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,@body))
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(defmacro org-with-point-at (pom &rest body)
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"Move to buffer and point of point-or-marker POM for the duration of BODY."
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(declare (debug (form body)) (indent 1))
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(org-with-gensyms (mpom)
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`(let ((,mpom ,pom))
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(save-excursion
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(when (markerp ,mpom) (set-buffer (marker-buffer ,mpom)))
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(org-with-wide-buffer
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(goto-char (or ,mpom (point)))
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,@body)))))
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(defmacro org-with-remote-undo (buffer &rest body)
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"Execute BODY while recording undo information in two buffers."
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(declare (debug (form body)) (indent 1))
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(org-with-gensyms (cline cmd buf1 buf2 undo1 undo2 c1 c2)
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`(let ((,cline (org-current-line))
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(,cmd this-command)
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(,buf1 (current-buffer))
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(,buf2 ,buffer)
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(,undo1 buffer-undo-list)
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(,undo2 (with-current-buffer ,buffer buffer-undo-list))
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,c1 ,c2)
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,@body
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(when org-agenda-allow-remote-undo
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(setq ,c1 (org-verify-change-for-undo
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,undo1 (with-current-buffer ,buf1 buffer-undo-list))
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,c2 (org-verify-change-for-undo
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,undo2 (with-current-buffer ,buf2 buffer-undo-list)))
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(when (or ,c1 ,c2)
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;; make sure there are undo boundaries
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(and ,c1 (with-current-buffer ,buf1 (undo-boundary)))
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(and ,c2 (with-current-buffer ,buf2 (undo-boundary)))
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;; remember which buffer to undo
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(push (list ,cmd ,cline ,buf1 ,c1 ,buf2 ,c2)
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org-agenda-undo-list))))))
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(defmacro org-no-read-only (&rest body)
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"Inhibit read-only for BODY."
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(declare (debug (body)))
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`(let ((inhibit-read-only t)) ,@body))
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(defmacro org-save-outline-visibility (use-markers &rest body)
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"Save and restore outline visibility around BODY.
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If USE-MARKERS is non-nil, use markers for the positions. This
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means that the buffer may change while running BODY, but it also
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means that the buffer should stay alive during the operation,
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because otherwise all these markers will point to nowhere."
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(declare (debug (form body)) (indent 1))
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(org-with-gensyms (data invisible-types markers?)
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`(let* ((,invisible-types '(org-hide-block org-hide-drawer outline))
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(,markers? ,use-markers)
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(,data
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(mapcar (lambda (o)
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(let ((beg (overlay-start o))
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(end (overlay-end o))
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(type (overlay-get o 'invisible)))
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(and beg end
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(> end beg)
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(memq type ,invisible-types)
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(list (if ,markers? (copy-marker beg) beg)
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(if ,markers? (copy-marker end t) end)
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type))))
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(org-with-wide-buffer
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(overlays-in (point-min) (point-max))))))
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(unwind-protect (progn ,@body)
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(org-with-wide-buffer
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(dolist (type ,invisible-types)
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(remove-overlays (point-min) (point-max) 'invisible type))
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(pcase-dolist (`(,beg ,end ,type) (delq nil ,data))
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(org-flag-region beg end t type)
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(when ,markers?
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(set-marker beg nil)
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(set-marker end nil))))))))
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(defmacro org-with-wide-buffer (&rest body)
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"Execute body while temporarily widening the buffer."
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(declare (debug (body)))
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`(save-excursion
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(save-restriction
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(widen)
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,@body)))
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(defmacro org-with-limited-levels (&rest body)
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"Execute BODY with limited number of outline levels."
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(declare (debug (body)))
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`(progn
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(defvar org-called-with-limited-levels)
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(defvar org-outline-regexp)
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(defvar outline-regexp)
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(defvar org-outline-regexp-bol)
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(let* ((org-called-with-limited-levels t)
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(org-outline-regexp (org-get-limited-outline-regexp))
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(outline-regexp org-outline-regexp)
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(org-outline-regexp-bol (concat "^" org-outline-regexp)))
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,@body)))
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(defmacro org-eval-in-environment (environment form)
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(declare (debug (form form)) (indent 1))
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`(eval (list 'let ,environment ',form)))
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;;;###autoload
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(defmacro org-load-noerror-mustsuffix (file)
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"Load FILE with optional arguments NOERROR and MUSTSUFFIX."
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`(load ,file 'noerror nil nil 'mustsuffix))
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(defmacro org-preserve-local-variables (&rest body)
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"Execute BODY while preserving local variables."
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(declare (debug (body)))
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`(let ((local-variables
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(org-with-wide-buffer
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(goto-char (point-max))
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(let ((case-fold-search t))
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(and (re-search-backward "^[ \t]*# +Local Variables:"
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(max (- (point) 3000) 1)
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t)
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(delete-and-extract-region (point) (point-max)))))))
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(unwind-protect (progn ,@body)
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(when local-variables
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(org-with-wide-buffer
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(goto-char (point-max))
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;; If last section is folded, make sure to also hide file
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;; local variables after inserting them back.
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(let ((overlay
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(cl-find-if (lambda (o)
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(eq 'outline (overlay-get o 'invisible)))
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(overlays-at (1- (point))))))
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(unless (bolp) (insert "\n"))
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(insert local-variables)
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(when overlay
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(move-overlay overlay (overlay-start overlay) (point-max)))))))))
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(defmacro org-no-popups (&rest body)
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"Suppress popup windows and evaluate BODY."
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`(let (pop-up-frames display-buffer-alist)
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,@body))
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;;; Buffer and windows
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(defun org-base-buffer (buffer)
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"Return the base buffer of BUFFER, if it has one. Else return the buffer."
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(when buffer
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(or (buffer-base-buffer buffer)
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buffer)))
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(defun org-find-base-buffer-visiting (file)
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"Like `find-buffer-visiting' but always return the base buffer and
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not an indirect buffer."
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(let ((buf (or (get-file-buffer file)
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(find-buffer-visiting file))))
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(org-base-buffer buf)))
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(defun org-switch-to-buffer-other-window (&rest args)
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"Switch to buffer in a second window on the current frame.
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In particular, do not allow pop-up frames.
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Returns the newly created buffer."
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(org-no-popups (apply #'switch-to-buffer-other-window args)))
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(defun org-fit-window-to-buffer (&optional window max-height min-height
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shrink-only)
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"Fit WINDOW to the buffer, but only if it is not a side-by-side window.
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WINDOW defaults to the selected window. MAX-HEIGHT and MIN-HEIGHT are
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passed through to `fit-window-to-buffer'. If SHRINK-ONLY is set, call
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`shrink-window-if-larger-than-buffer' instead, the height limit is
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ignored in this case."
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(cond ((if (fboundp 'window-full-width-p)
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(not (window-full-width-p window))
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;; Do nothing if another window would suffer.
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(> (frame-width) (window-width window))))
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((and (fboundp 'fit-window-to-buffer) (not shrink-only))
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(fit-window-to-buffer window max-height min-height))
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((fboundp 'shrink-window-if-larger-than-buffer)
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(shrink-window-if-larger-than-buffer window)))
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(or window (selected-window)))
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;;; File
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(defun org-file-newer-than-p (file time)
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"Non-nil if FILE is newer than TIME.
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FILE is a filename, as a string, TIME is a list of integers, as
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returned by, e.g., `current-time'."
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(and (file-exists-p file)
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;; Only compare times up to whole seconds as some file-systems
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;; (e.g. HFS+) do not retain any finer granularity. As
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;; a consequence, make sure we return non-nil when the two
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;; times are equal.
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(not (time-less-p (cl-subseq (nth 5 (file-attributes file)) 0 2)
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(cl-subseq time 0 2)))))
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(defun org-compile-file (source process ext &optional err-msg log-buf spec)
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"Compile a SOURCE file using PROCESS.
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PROCESS is either a function or a list of shell commands, as
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strings. EXT is a file extension, without the leading dot, as
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a string. It is used to check if the process actually succeeded.
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PROCESS must create a file with the same base name and directory
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as SOURCE, but ending with EXT. The function then returns its
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filename. Otherwise, it raises an error. The error message can
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then be refined by providing string ERR-MSG, which is appended to
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the standard message.
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If PROCESS is a function, it is called with a single argument:
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the SOURCE file.
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If it is a list of commands, each of them is called using
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`shell-command'. By default, in each command, %b, %f, %F, %o and
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%O are replaced with, respectively, SOURCE base name, name, full
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name, directory and absolute output file name. It is possible,
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however, to use more place-holders by specifying them in optional
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argument SPEC, as an alist following the pattern
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(CHARACTER . REPLACEMENT-STRING).
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When PROCESS is a list of commands, optional argument LOG-BUF can
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be set to a buffer or a buffer name. `shell-command' then uses
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it for output."
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(let* ((base-name (file-name-base source))
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(full-name (file-truename source))
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(out-dir (or (file-name-directory source) "./"))
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(output (expand-file-name (concat base-name "." ext) out-dir))
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(time (current-time))
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(err-msg (if (stringp err-msg) (concat ". " err-msg) "")))
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(save-window-excursion
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(pcase process
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((pred functionp) (funcall process (shell-quote-argument source)))
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((pred consp)
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(let ((log-buf (and log-buf (get-buffer-create log-buf)))
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(spec (append spec
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`((?b . ,(shell-quote-argument base-name))
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(?f . ,(shell-quote-argument source))
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(?F . ,(shell-quote-argument full-name))
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(?o . ,(shell-quote-argument out-dir))
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(?O . ,(shell-quote-argument output))))))
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(dolist (command process)
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(shell-command (format-spec command spec) log-buf))
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(when log-buf (with-current-buffer log-buf (compilation-mode)))))
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(_ (error "No valid command to process %S%s" source err-msg))))
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;; Check for process failure. Output file is expected to be
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;; located in the same directory as SOURCE.
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(unless (org-file-newer-than-p output time)
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(error (format "File %S wasn't produced%s" output err-msg)))
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output))
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;;; Indentation
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(defun org-do-remove-indentation (&optional n)
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"Remove the maximum common indentation from the buffer.
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When optional argument N is a positive integer, remove exactly
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that much characters from indentation, if possible. Return nil
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if it fails."
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(catch :exit
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(goto-char (point-min))
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;; Find maximum common indentation, if not specified.
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(let ((n (or n
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(let ((min-ind (point-max)))
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(save-excursion
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(while (re-search-forward "^[ \t]*\\S-" nil t)
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(let ((ind (current-indentation)))
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(if (zerop ind) (throw :exit nil)
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(setq min-ind (min min-ind ind))))))
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min-ind))))
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(if (zerop n) (throw :exit nil)
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;; Remove exactly N indentation, but give up if not possible.
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(while (not (eobp))
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(let ((ind (progn (skip-chars-forward " \t") (current-column))))
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(cond ((eolp) (delete-region (line-beginning-position) (point)))
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((< ind n) (throw :exit nil))
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(t (indent-line-to (- ind n))))
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(forward-line)))
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;; Signal success.
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t))))
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;;; Input
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(defun org-read-function (prompt &optional allow-empty?)
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"Prompt for a function.
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If ALLOW-EMPTY? is non-nil, return nil rather than raising an
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error when the user input is empty."
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(let ((func (completing-read prompt obarray #'fboundp t)))
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(cond ((not (string= func ""))
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(intern func))
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(allow-empty? nil)
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(t (user-error "Empty input is not valid")))))
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(defun org-completing-read (&rest args)
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"Completing-read with SPACE being a normal character."
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(let ((enable-recursive-minibuffers t)
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(minibuffer-local-completion-map
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(copy-keymap minibuffer-local-completion-map)))
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(define-key minibuffer-local-completion-map " " 'self-insert-command)
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(define-key minibuffer-local-completion-map "?" 'self-insert-command)
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(define-key minibuffer-local-completion-map (kbd "C-c !")
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'org-time-stamp-inactive)
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(apply #'completing-read args)))
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(defun org--mks-read-key (allowed-keys prompt)
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"Read a key and ensure it is a member of ALLOWED-KEYS.
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TAB, SPC and RET are treated equivalently."
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(let* ((key (char-to-string
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(pcase (read-char-exclusive prompt)
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((or ?\s ?\t ?\r) ?\t)
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(char char)))))
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(if (member key allowed-keys)
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key
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(message "Invalid key: `%s'" key)
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(sit-for 1)
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(org--mks-read-key allowed-keys prompt))))
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(defun org-mks (table title &optional prompt specials)
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"Select a member of an alist with multiple keys.
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TABLE is the alist which should contain entries where the car is a string.
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There should be two types of entries.
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1. prefix descriptions like (\"a\" \"Description\")
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This indicates that `a' is a prefix key for multi-letter selection, and
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that there are entries following with keys like \"ab\", \"ax\"...
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2. Select-able members must have more than two elements, with the first
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being the string of keys that lead to selecting it, and the second a
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short description string of the item.
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The command will then make a temporary buffer listing all entries
|
||
that can be selected with a single key, and all the single key
|
||
prefixes. When you press the key for a single-letter entry, it is selected.
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||
When you press a prefix key, the commands (and maybe further prefixes)
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||
under this key will be shown and offered for selection.
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TITLE will be placed over the selection in the temporary buffer,
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PROMPT will be used when prompting for a key. SPECIALS is an
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||
alist with (\"key\" \"description\") entries. When one of these
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||
is selected, only the bare key is returned."
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||
(save-window-excursion
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||
(let ((inhibit-quit t)
|
||
(buffer (org-switch-to-buffer-other-window "*Org Select*"))
|
||
(prompt (or prompt "Select: "))
|
||
current)
|
||
(unwind-protect
|
||
(catch 'exit
|
||
(while t
|
||
(erase-buffer)
|
||
(insert title "\n\n")
|
||
(let ((des-keys nil)
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||
(allowed-keys '("\C-g"))
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||
(tab-alternatives '("\s" "\t" "\r"))
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||
(cursor-type nil))
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;; Populate allowed keys and descriptions keys
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||
;; available with CURRENT selector.
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||
(let ((re (format "\\`%s\\(.\\)\\'"
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(if current (regexp-quote current) "")))
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||
(prefix (if current (concat current " ") "")))
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||
(dolist (entry table)
|
||
(pcase entry
|
||
;; Description.
|
||
(`(,(and key (pred (string-match re))) ,desc)
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||
(let ((k (match-string 1 key)))
|
||
(push k des-keys)
|
||
;; Keys ending in tab, space or RET are equivalent.
|
||
(if (member k tab-alternatives)
|
||
(push "\t" allowed-keys)
|
||
(push k allowed-keys))
|
||
(insert prefix "[" k "]" "..." " " desc "..." "\n")))
|
||
;; Usable entry.
|
||
(`(,(and key (pred (string-match re))) ,desc . ,_)
|
||
(let ((k (match-string 1 key)))
|
||
(insert prefix "[" k "]" " " desc "\n")
|
||
(push k allowed-keys)))
|
||
(_ nil))))
|
||
;; Insert special entries, if any.
|
||
(when specials
|
||
(insert "----------------------------------------------------\
|
||
---------------------------\n")
|
||
(pcase-dolist (`(,key ,description) specials)
|
||
(insert (format "[%s] %s\n" key description))
|
||
(push key allowed-keys)))
|
||
;; Display UI and let user select an entry or
|
||
;; a sub-level prefix.
|
||
(goto-char (point-min))
|
||
(unless (pos-visible-in-window-p (point-max))
|
||
(org-fit-window-to-buffer))
|
||
(let ((pressed (org--mks-read-key allowed-keys prompt)))
|
||
(setq current (concat current pressed))
|
||
(cond
|
||
((equal pressed "\C-g") (user-error "Abort"))
|
||
;; Selection is a prefix: open a new menu.
|
||
((member pressed des-keys))
|
||
;; Selection matches an association: return it.
|
||
((let ((entry (assoc current table)))
|
||
(and entry (throw 'exit entry))))
|
||
;; Selection matches a special entry: return the
|
||
;; selection prefix.
|
||
((assoc current specials) (throw 'exit current))
|
||
(t (error "No entry available")))))))
|
||
(when buffer (kill-buffer buffer))))))
|
||
|
||
|
||
;;; List manipulation
|
||
|
||
(defsubst org-get-alist-option (option key)
|
||
(cond ((eq key t) t)
|
||
((eq option t) t)
|
||
((assoc key option) (cdr (assoc key option)))
|
||
(t (let ((r (cdr (assq 'default option))))
|
||
(if (listp r) (delq nil r) r)))))
|
||
|
||
(defsubst org-last (list)
|
||
"Return the last element of LIST."
|
||
(car (last list)))
|
||
|
||
(defsubst org-uniquify (list)
|
||
"Non-destructively remove duplicate elements from LIST."
|
||
(let ((res (copy-sequence list))) (delete-dups res)))
|
||
|
||
(defun org-uniquify-alist (alist)
|
||
"Merge elements of ALIST with the same key.
|
||
|
||
For example, in this alist:
|
||
|
||
\(org-uniquify-alist \\='((a 1) (b 2) (a 3)))
|
||
=> \\='((a 1 3) (b 2))
|
||
|
||
merge (a 1) and (a 3) into (a 1 3).
|
||
|
||
The function returns the new ALIST."
|
||
(let (rtn)
|
||
(dolist (e alist rtn)
|
||
(let (n)
|
||
(if (not (assoc (car e) rtn))
|
||
(push e rtn)
|
||
(setq n (cons (car e) (append (cdr (assoc (car e) rtn)) (cdr e))))
|
||
(setq rtn (assq-delete-all (car e) rtn))
|
||
(push n rtn))))))
|
||
|
||
(defun org-delete-all (elts list)
|
||
"Remove all elements in ELTS from LIST.
|
||
Comparison is done with `equal'. It is a destructive operation
|
||
that may remove elements by altering the list structure."
|
||
(while elts
|
||
(setq list (delete (pop elts) list)))
|
||
list)
|
||
|
||
(defun org-plist-delete (plist property)
|
||
"Delete PROPERTY from PLIST.
|
||
This is in contrast to merely setting it to 0."
|
||
(let (p)
|
||
(while plist
|
||
(if (not (eq property (car plist)))
|
||
(setq p (plist-put p (car plist) (nth 1 plist))))
|
||
(setq plist (cddr plist)))
|
||
p))
|
||
|
||
(defun org-combine-plists (&rest plists)
|
||
"Create a single property list from all plists in PLISTS.
|
||
The process starts by copying the first list, and then setting properties
|
||
from the other lists. Settings in the last list are the most significant
|
||
ones and overrule settings in the other lists."
|
||
(let ((rtn (copy-sequence (pop plists)))
|
||
p v ls)
|
||
(while plists
|
||
(setq ls (pop plists))
|
||
(while ls
|
||
(setq p (pop ls) v (pop ls))
|
||
(setq rtn (plist-put rtn p v))))
|
||
rtn))
|
||
|
||
|
||
|
||
;;; Local variables
|
||
|
||
(defconst org-unique-local-variables
|
||
'(org-element--cache
|
||
org-element--cache-objects
|
||
org-element--cache-sync-keys
|
||
org-element--cache-sync-requests
|
||
org-element--cache-sync-timer)
|
||
"List of local variables that cannot be transferred to another buffer.")
|
||
|
||
(defun org-get-local-variables ()
|
||
"Return a list of all local variables in an Org mode buffer."
|
||
(delq nil
|
||
(mapcar
|
||
(lambda (x)
|
||
(let* ((binding (if (symbolp x) (list x) (list (car x) (cdr x))))
|
||
(name (car binding)))
|
||
(and (not (get name 'org-state))
|
||
(not (memq name org-unique-local-variables))
|
||
(string-match-p
|
||
"\\`\\(org-\\|orgtbl-\\|outline-\\|comment-\\|paragraph-\\|\
|
||
auto-fill\\|normal-auto-fill\\|fill-paragraph\\|indent-\\)"
|
||
(symbol-name name))
|
||
binding)))
|
||
(with-temp-buffer
|
||
(org-mode)
|
||
(buffer-local-variables)))))
|
||
|
||
(defun org-clone-local-variables (from-buffer &optional regexp)
|
||
"Clone local variables from FROM-BUFFER.
|
||
Optional argument REGEXP selects variables to clone."
|
||
(dolist (pair (buffer-local-variables from-buffer))
|
||
(pcase pair
|
||
(`(,name . ,value) ;ignore unbound variables
|
||
(when (and (not (memq name org-unique-local-variables))
|
||
(or (null regexp) (string-match-p regexp (symbol-name name))))
|
||
(ignore-errors (set (make-local-variable name) value)))))))
|
||
|
||
|
||
;;; Miscellaneous
|
||
|
||
(defsubst org-call-with-arg (command arg)
|
||
"Call COMMAND interactively, but pretend prefix arg was ARG."
|
||
(let ((current-prefix-arg arg)) (call-interactively command)))
|
||
|
||
(defsubst org-check-external-command (cmd &optional use no-error)
|
||
"Check if external program CMD for USE exists, error if not.
|
||
When the program does exist, return its path.
|
||
When it does not exist and NO-ERROR is set, return nil.
|
||
Otherwise, throw an error. The optional argument USE can describe what this
|
||
program is needed for, so that the error message can be more informative."
|
||
(or (executable-find cmd)
|
||
(if no-error
|
||
nil
|
||
(error "Can't find `%s'%s" cmd
|
||
(if use (format " (%s)" use) "")))))
|
||
|
||
(defun org-display-warning (message)
|
||
"Display the given MESSAGE as a warning."
|
||
(display-warning 'org message :warning))
|
||
|
||
(defun org-unlogged-message (&rest args)
|
||
"Display a message, but avoid logging it in the *Messages* buffer."
|
||
(let ((message-log-max nil))
|
||
(apply #'message args)))
|
||
|
||
(defun org-let (list &rest body)
|
||
(eval (cons 'let (cons list body))))
|
||
(put 'org-let 'lisp-indent-function 1)
|
||
|
||
(defun org-let2 (list1 list2 &rest body)
|
||
(eval (cons 'let (cons list1 (list (cons 'let (cons list2 body)))))))
|
||
(put 'org-let2 'lisp-indent-function 2)
|
||
|
||
(defun org-eval (form)
|
||
"Eval FORM and return result."
|
||
(condition-case error
|
||
(eval form)
|
||
(error (format "%%![Error: %s]" error))))
|
||
|
||
(defvar org-outline-regexp) ; defined in org.el
|
||
(defvar org-odd-levels-only) ; defined in org.el
|
||
(defvar org-inlinetask-min-level) ; defined in org-inlinetask.el
|
||
(defun org-get-limited-outline-regexp ()
|
||
"Return outline-regexp with limited number of levels.
|
||
The number of levels is controlled by `org-inlinetask-min-level'."
|
||
(cond ((not (derived-mode-p 'org-mode))
|
||
outline-regexp)
|
||
((not (featurep 'org-inlinetask))
|
||
org-outline-regexp)
|
||
(t
|
||
(let* ((limit-level (1- org-inlinetask-min-level))
|
||
(nstars (if org-odd-levels-only
|
||
(1- (* limit-level 2))
|
||
limit-level)))
|
||
(format "\\*\\{1,%d\\} " nstars)))))
|
||
|
||
|
||
|
||
;;; Motion
|
||
|
||
(defsubst org-goto-line (N)
|
||
(save-restriction
|
||
(widen)
|
||
(goto-char (point-min))
|
||
(forward-line (1- N))))
|
||
|
||
(defsubst org-current-line (&optional pos)
|
||
(save-excursion
|
||
(and pos (goto-char pos))
|
||
;; works also in narrowed buffer, because we start at 1, not point-min
|
||
(+ (if (bolp) 1 0) (count-lines 1 (point)))))
|
||
|
||
|
||
|
||
;;; Overlays
|
||
|
||
(defun org-overlay-display (ovl text &optional face evap)
|
||
"Make overlay OVL display TEXT with face FACE."
|
||
(overlay-put ovl 'display text)
|
||
(when face (overlay-put ovl 'face face))
|
||
(when evap (overlay-put ovl 'evaporate t)))
|
||
|
||
(defun org-overlay-before-string (ovl text &optional face evap)
|
||
"Make overlay OVL display TEXT with face FACE."
|
||
(when face (org-add-props text nil 'face face))
|
||
(overlay-put ovl 'before-string text)
|
||
(when evap (overlay-put ovl 'evaporate t)))
|
||
|
||
(defun org-find-overlays (prop &optional pos delete)
|
||
"Find all overlays specifying PROP at POS or point.
|
||
If DELETE is non-nil, delete all those overlays."
|
||
(let (found)
|
||
(dolist (ov (overlays-at (or pos (point))) found)
|
||
(cond ((not (overlay-get ov prop)))
|
||
(delete (delete-overlay ov))
|
||
(t (push ov found))))))
|
||
|
||
(defun org-flag-region (from to flag spec)
|
||
"Hide or show lines from FROM to TO, according to FLAG.
|
||
SPEC is the invisibility spec, as a symbol."
|
||
(remove-overlays from to 'invisible spec)
|
||
;; Use `front-advance' since text right before to the beginning of
|
||
;; the overlay belongs to the visible line than to the contents.
|
||
(when flag
|
||
(let ((o (make-overlay from to nil 'front-advance)))
|
||
(overlay-put o 'evaporate t)
|
||
(overlay-put o 'invisible spec)
|
||
(overlay-put o 'isearch-open-invisible #'delete-overlay))))
|
||
|
||
|
||
|
||
;;; Regexp matching
|
||
|
||
(defsubst org-pos-in-match-range (pos n)
|
||
(and (match-beginning n)
|
||
(<= (match-beginning n) pos)
|
||
(>= (match-end n) pos)))
|
||
|
||
(defun org-skip-whitespace ()
|
||
"Skip over space, tabs and newline characters."
|
||
(skip-chars-forward " \t\n\r"))
|
||
|
||
(defun org-match-line (regexp)
|
||
"Match REGEXP at the beginning of the current line."
|
||
(save-excursion
|
||
(beginning-of-line)
|
||
(looking-at regexp)))
|
||
|
||
(defun org-match-any-p (re list)
|
||
"Non-nil if regexp RE matches an element in LIST."
|
||
(cl-some (lambda (x) (string-match-p re x)) list))
|
||
|
||
(defun org-in-regexp (regexp &optional nlines visually)
|
||
"Check if point is inside a match of REGEXP.
|
||
|
||
Normally only the current line is checked, but you can include
|
||
NLINES extra lines around point into the search. If VISUALLY is
|
||
set, require that the cursor is not after the match but really
|
||
on, so that the block visually is on the match.
|
||
|
||
Return nil or a cons cell (BEG . END) where BEG and END are,
|
||
respectively, the positions at the beginning and the end of the
|
||
match."
|
||
(catch :exit
|
||
(let ((pos (point))
|
||
(eol (line-end-position (if nlines (1+ nlines) 1))))
|
||
(save-excursion
|
||
(beginning-of-line (- 1 (or nlines 0)))
|
||
(while (and (re-search-forward regexp eol t)
|
||
(<= (match-beginning 0) pos))
|
||
(let ((end (match-end 0)))
|
||
(when (or (> end pos) (and (= end pos) (not visually)))
|
||
(throw :exit (cons (match-beginning 0) (match-end 0))))))))))
|
||
|
||
(defun org-point-in-group (point group &optional context)
|
||
"Check if POINT is in match-group GROUP.
|
||
If CONTEXT is non-nil, return a list with CONTEXT and the boundaries of the
|
||
match. If the match group does not exist or point is not inside it,
|
||
return nil."
|
||
(and (match-beginning group)
|
||
(>= point (match-beginning group))
|
||
(<= point (match-end group))
|
||
(if context
|
||
(list context (match-beginning group) (match-end group))
|
||
t)))
|
||
|
||
|
||
|
||
;;; String manipulation
|
||
|
||
(defun org-string< (a b)
|
||
(org-string-collate-lessp a b))
|
||
|
||
(defun org-string<= (a b)
|
||
(or (string= a b) (org-string-collate-lessp a b)))
|
||
|
||
(defun org-string>= (a b)
|
||
(not (org-string-collate-lessp a b)))
|
||
|
||
(defun org-string> (a b)
|
||
(and (not (string= a b))
|
||
(not (org-string-collate-lessp a b))))
|
||
|
||
(defun org-string<> (a b)
|
||
(not (string= a b)))
|
||
|
||
(defsubst org-trim (s &optional keep-lead)
|
||
"Remove whitespace at the beginning and the end of string S.
|
||
When optional argument KEEP-LEAD is non-nil, removing blank lines
|
||
at the beginning of the string does not affect leading indentation."
|
||
(replace-regexp-in-string
|
||
(if keep-lead "\\`\\([ \t]*\n\\)+" "\\`[ \t\n\r]+") ""
|
||
(replace-regexp-in-string "[ \t\n\r]+\\'" "" s)))
|
||
|
||
(defun org-string-nw-p (s)
|
||
"Return S if S is a string containing a non-blank character.
|
||
Otherwise, return nil."
|
||
(and (stringp s)
|
||
(string-match-p "[^ \r\t\n]" s)
|
||
s))
|
||
|
||
(defun org-reverse-string (string)
|
||
"Return the reverse of STRING."
|
||
(apply #'string (nreverse (string-to-list string))))
|
||
|
||
(defun org-split-string (string &optional separators)
|
||
"Splits STRING into substrings at SEPARATORS.
|
||
|
||
SEPARATORS is a regular expression. When nil, it defaults to
|
||
\"[ \f\t\n\r\v]+\".
|
||
|
||
Unlike `split-string', matching SEPARATORS at the beginning and
|
||
end of string are ignored."
|
||
(let ((separators (or separators "[ \f\t\n\r\v]+")))
|
||
(if (not (string-match separators string)) (list string)
|
||
(let ((i (match-end 0))
|
||
(results
|
||
(and (/= 0 (match-beginning 0)) ;skip leading separator
|
||
(list (substring string 0 (match-beginning 0))))))
|
||
(while (string-match separators string i)
|
||
(push (substring string i (match-beginning 0))
|
||
results)
|
||
(setq i (match-end 0)))
|
||
(nreverse (if (= i (length string))
|
||
results ;skip trailing separator
|
||
(cons (substring string i) results)))))))
|
||
|
||
(defun org--string-from-props (s property beg end)
|
||
"Return the visible part of string S.
|
||
Visible part is determined according to text PROPERTY, which is
|
||
either `invisible' or `display'. BEG and END are 0-indices
|
||
delimiting S."
|
||
(let ((width 0)
|
||
(cursor beg))
|
||
(while (setq beg (text-property-not-all beg end property nil s))
|
||
(let* ((next (next-single-property-change beg property s end))
|
||
(props (text-properties-at beg s))
|
||
(spec (plist-get props property))
|
||
(value
|
||
(pcase property
|
||
(`invisible
|
||
;; If `invisible' property in PROPS means text is to
|
||
;; be invisible, return 0. Otherwise return nil so
|
||
;; as to resume search.
|
||
(and (or (eq t buffer-invisibility-spec)
|
||
(assoc-string spec buffer-invisibility-spec))
|
||
0))
|
||
(`display
|
||
(pcase spec
|
||
(`nil nil)
|
||
(`(space . ,props)
|
||
(let ((width (plist-get props :width)))
|
||
(and (wholenump width) width)))
|
||
(`(image . ,_)
|
||
(ceiling (car (image-size spec))))
|
||
((pred stringp)
|
||
;; Displayed string could contain invisible parts,
|
||
;; but no nested display.
|
||
(org--string-from-props spec 'invisible 0 (length spec)))
|
||
(_
|
||
;; Un-handled `display' value. Ignore it.
|
||
;; Consider the original string instead.
|
||
nil)))
|
||
(_ (error "Unknown property: %S" property)))))
|
||
(when value
|
||
(cl-incf width
|
||
;; When looking for `display' parts, we still need
|
||
;; to look for `invisible' property elsewhere.
|
||
(+ (cond ((eq property 'display)
|
||
(org--string-from-props s 'invisible cursor beg))
|
||
((= cursor beg) 0)
|
||
(t (string-width (substring s cursor beg))))
|
||
value))
|
||
(setq cursor next))
|
||
(setq beg next)))
|
||
(+ width
|
||
;; Look for `invisible' property in the last part of the
|
||
;; string. See above.
|
||
(cond ((eq property 'display)
|
||
(org--string-from-props s 'invisible cursor end))
|
||
((= cursor end) 0)
|
||
(t (string-width (substring s cursor end)))))))
|
||
|
||
(defun org-string-width (string)
|
||
"Return width of STRING when displayed in the current buffer.
|
||
Unlike `string-width', this function takes into consideration
|
||
`invisible' and `display' text properties. It supports the
|
||
latter in a limited way, mostly for combinations used in Org.
|
||
Results may be off sometimes if it cannot handle a given
|
||
`display' value."
|
||
(org--string-from-props string 'display 0 (length string)))
|
||
|
||
(defun org-not-nil (v)
|
||
"If V not nil, and also not the string \"nil\", then return V.
|
||
Otherwise return nil."
|
||
(and v (not (equal v "nil")) v))
|
||
|
||
(defun org-unbracket-string (pre post string)
|
||
"Remove PRE/POST from the beginning/end of STRING.
|
||
Both PRE and POST must be pre-/suffixes of STRING, or neither is
|
||
removed. Return the new string. If STRING is nil, return nil."
|
||
(declare (indent 2))
|
||
(and string
|
||
(if (and (string-prefix-p pre string)
|
||
(string-suffix-p post string))
|
||
(substring string (length pre) (- (length post)))
|
||
string)))
|
||
|
||
(defun org-strip-quotes (string)
|
||
"Strip double quotes from around STRING, if applicable.
|
||
If STRING is nil, return nil."
|
||
(org-unbracket-string "\"" "\"" string))
|
||
|
||
(defsubst org-current-line-string (&optional to-here)
|
||
"Return current line, as a string.
|
||
If optional argument TO-HERE is non-nil, return string from
|
||
beginning of line up to point."
|
||
(buffer-substring (line-beginning-position)
|
||
(if to-here (point) (line-end-position))))
|
||
|
||
(defun org-shorten-string (s maxlength)
|
||
"Shorten string S so that it is no longer than MAXLENGTH characters.
|
||
If the string is shorter or has length MAXLENGTH, just return the
|
||
original string. If it is longer, the functions finds a space in the
|
||
string, breaks this string off at that locations and adds three dots
|
||
as ellipsis. Including the ellipsis, the string will not be longer
|
||
than MAXLENGTH. If finding a good breaking point in the string does
|
||
not work, the string is just chopped off in the middle of a word
|
||
if necessary."
|
||
(if (<= (length s) maxlength)
|
||
s
|
||
(let* ((n (max (- maxlength 4) 1))
|
||
(re (concat "\\`\\(.\\{1," (int-to-string n) "\\}[^ ]\\)\\([ ]\\|\\'\\)")))
|
||
(if (string-match re s)
|
||
(concat (match-string 1 s) "...")
|
||
(concat (substring s 0 (max (- maxlength 3) 0)) "...")))))
|
||
|
||
(defun org-remove-tabs (s &optional width)
|
||
"Replace tabulators in S with spaces.
|
||
Assumes that s is a single line, starting in column 0."
|
||
(setq width (or width tab-width))
|
||
(while (string-match "\t" s)
|
||
(setq s (replace-match
|
||
(make-string
|
||
(- (* width (/ (+ (match-beginning 0) width) width))
|
||
(match-beginning 0)) ?\ )
|
||
t t s)))
|
||
s)
|
||
|
||
(defun org-wrap (string &optional width lines)
|
||
"Wrap string to either a number of lines, or a width in characters.
|
||
If WIDTH is non-nil, the string is wrapped to that width, however many lines
|
||
that costs. If there is a word longer than WIDTH, the text is actually
|
||
wrapped to the length of that word.
|
||
IF WIDTH is nil and LINES is non-nil, the string is forced into at most that
|
||
many lines, whatever width that takes.
|
||
The return value is a list of lines, without newlines at the end."
|
||
(let* ((words (split-string string))
|
||
(maxword (apply 'max (mapcar 'org-string-width words)))
|
||
w ll)
|
||
(cond (width
|
||
(org--do-wrap words (max maxword width)))
|
||
(lines
|
||
(setq w maxword)
|
||
(setq ll (org--do-wrap words maxword))
|
||
(if (<= (length ll) lines)
|
||
ll
|
||
(setq ll words)
|
||
(while (> (length ll) lines)
|
||
(setq w (1+ w))
|
||
(setq ll (org--do-wrap words w)))
|
||
ll))
|
||
(t (error "Cannot wrap this")))))
|
||
|
||
(defun org--do-wrap (words width)
|
||
"Create lines of maximum width WIDTH (in characters) from word list WORDS."
|
||
(let (lines line)
|
||
(while words
|
||
(setq line (pop words))
|
||
(while (and words (< (+ (length line) (length (car words))) width))
|
||
(setq line (concat line " " (pop words))))
|
||
(setq lines (push line lines)))
|
||
(nreverse lines)))
|
||
|
||
(defun org-remove-indentation (code &optional n)
|
||
"Remove maximum common indentation in string CODE and return it.
|
||
N may optionally be the number of columns to remove. Return CODE
|
||
as-is if removal failed."
|
||
(with-temp-buffer
|
||
(insert code)
|
||
(if (org-do-remove-indentation n) (buffer-string) code)))
|
||
|
||
(defun org-fill-template (template alist)
|
||
"Find each %key of ALIST in TEMPLATE and replace it."
|
||
(let ((case-fold-search nil))
|
||
(dolist (entry (sort (copy-sequence alist)
|
||
(lambda (a b) (< (length (car a)) (length (car b))))))
|
||
(setq template
|
||
(replace-regexp-in-string
|
||
(concat "%" (regexp-quote (car entry)))
|
||
(or (cdr entry) "") template t t)))
|
||
template))
|
||
|
||
(defun org-replace-escapes (string table)
|
||
"Replace %-escapes in STRING with values in TABLE.
|
||
TABLE is an association list with keys like \"%a\" and string values.
|
||
The sequences in STRING may contain normal field width and padding information,
|
||
for example \"%-5s\". Replacements happen in the sequence given by TABLE,
|
||
so values can contain further %-escapes if they are define later in TABLE."
|
||
(let ((tbl (copy-alist table))
|
||
(case-fold-search nil)
|
||
(pchg 0)
|
||
re rpl)
|
||
(dolist (e tbl)
|
||
(setq re (concat "%-?[0-9.]*" (substring (car e) 1)))
|
||
(when (and (cdr e) (string-match re (cdr e)))
|
||
(let ((sref (substring (cdr e) (match-beginning 0) (match-end 0)))
|
||
(safe "SREF"))
|
||
(add-text-properties 0 3 (list 'sref sref) safe)
|
||
(setcdr e (replace-match safe t t (cdr e)))))
|
||
(while (string-match re string)
|
||
(setq rpl (format (concat (substring (match-string 0 string) 0 -1) "s")
|
||
(cdr e)))
|
||
(setq string (replace-match rpl t t string))))
|
||
(while (setq pchg (next-property-change pchg string))
|
||
(let ((sref (get-text-property pchg 'sref string)))
|
||
(when (and sref (string-match "SREF" string pchg))
|
||
(setq string (replace-match sref t t string)))))
|
||
string))
|
||
|
||
|
||
;;; Text properties
|
||
|
||
(defconst org-rm-props '(invisible t face t keymap t intangible t mouse-face t
|
||
rear-nonsticky t mouse-map t fontified t
|
||
org-emphasis t)
|
||
"Properties to remove when a string without properties is wanted.")
|
||
|
||
(defsubst org-no-properties (s &optional restricted)
|
||
"Remove all text properties from string S.
|
||
When RESTRICTED is non-nil, only remove the properties listed
|
||
in `org-rm-props'."
|
||
(if restricted (remove-text-properties 0 (length s) org-rm-props s)
|
||
(set-text-properties 0 (length s) nil s))
|
||
s)
|
||
(defun org-add-props (string plist &rest props)
|
||
"Add text properties to entire string, from beginning to end.
|
||
PLIST may be a list of properties, PROPS are individual properties and values
|
||
that will be added to PLIST. Returns the string that was modified."
|
||
(declare (indent 2))
|
||
(add-text-properties
|
||
0 (length string) (if props (append plist props) plist) string)
|
||
string)
|
||
|
||
(defun org-make-parameter-alist (flat)
|
||
"Return alist based on FLAT.
|
||
FLAT is a list with alternating symbol names and values. The
|
||
returned alist is a list of lists with the symbol name in car and
|
||
the value in cdr."
|
||
(when flat
|
||
(cons (list (car flat) (cadr flat))
|
||
(org-make-parameter-alist (cddr flat)))))
|
||
|
||
(defsubst org-get-at-bol (property)
|
||
"Get text property PROPERTY at the beginning of line."
|
||
(get-text-property (point-at-bol) property))
|
||
|
||
(defun org-get-at-eol (property n)
|
||
"Get text property PROPERTY at the end of line less N characters."
|
||
(get-text-property (- (point-at-eol) n) property))
|
||
|
||
(defun org-find-text-property-in-string (prop s)
|
||
"Return the first non-nil value of property PROP in string S."
|
||
(or (get-text-property 0 prop s)
|
||
(get-text-property (or (next-single-property-change 0 prop s) 0)
|
||
prop s)))
|
||
|
||
(defun org-invisible-p (&optional pos)
|
||
"Non-nil if the character after POS is invisible.
|
||
If POS is nil, use `point' instead."
|
||
(get-char-property (or pos (point)) 'invisible))
|
||
|
||
(defun org-truely-invisible-p ()
|
||
"Check if point is at a character currently not visible.
|
||
This version does not only check the character property, but also
|
||
`visible-mode'."
|
||
(unless (bound-and-true-p visible-mode)
|
||
(org-invisible-p)))
|
||
|
||
(defun org-invisible-p2 ()
|
||
"Check if point is at a character currently not visible.
|
||
If the point is at EOL (and not at the beginning of a buffer too),
|
||
move it back by one char before doing this check."
|
||
(save-excursion
|
||
(when (and (eolp) (not (bobp)))
|
||
(backward-char 1))
|
||
(org-invisible-p)))
|
||
|
||
|
||
;;; Time
|
||
|
||
(defun org-2ft (s)
|
||
"Convert S to a floating point time.
|
||
If S is already a number, just return it. If it is a string,
|
||
parse it as a time string and apply `float-time' to it. If S is
|
||
nil, just return 0."
|
||
(cond
|
||
((numberp s) s)
|
||
((stringp s)
|
||
(condition-case nil
|
||
(float-time (apply #'encode-time (org-parse-time-string s)))
|
||
(error 0)))
|
||
(t 0)))
|
||
|
||
(defun org-time= (a b)
|
||
(let ((a (org-2ft a))
|
||
(b (org-2ft b)))
|
||
(and (> a 0) (> b 0) (= a b))))
|
||
|
||
(defun org-time< (a b)
|
||
(let ((a (org-2ft a))
|
||
(b (org-2ft b)))
|
||
(and (> a 0) (> b 0) (< a b))))
|
||
|
||
(defun org-time<= (a b)
|
||
(let ((a (org-2ft a))
|
||
(b (org-2ft b)))
|
||
(and (> a 0) (> b 0) (<= a b))))
|
||
|
||
(defun org-time> (a b)
|
||
(let ((a (org-2ft a))
|
||
(b (org-2ft b)))
|
||
(and (> a 0) (> b 0) (> a b))))
|
||
|
||
(defun org-time>= (a b)
|
||
(let ((a (org-2ft a))
|
||
(b (org-2ft b)))
|
||
(and (> a 0) (> b 0) (>= a b))))
|
||
|
||
(defun org-time<> (a b)
|
||
(let ((a (org-2ft a))
|
||
(b (org-2ft b)))
|
||
(and (> a 0) (> b 0) (\= a b))))
|
||
|
||
(defun org-parse-time-string (s &optional nodefault)
|
||
"Parse Org time string S.
|
||
|
||
If time is not given, defaults to 0:00. However, with optional
|
||
NODEFAULT, hour and minute fields are nil if not given.
|
||
|
||
Throw an error if S does not contain a valid Org time string.
|
||
Note that the first match for YYYY-MM-DD will be used (e.g.,
|
||
\"-52000-02-03\" will be taken as \"2000-02-03\").
|
||
|
||
This should be a lot faster than the `parse-time-string'."
|
||
(unless (string-match org-ts-regexp0 s)
|
||
(error "Not an Org time string: %s" s))
|
||
(list 0
|
||
(cond ((match-beginning 8) (string-to-number (match-string 8 s)))
|
||
(nodefault nil)
|
||
(t 0))
|
||
(cond ((match-beginning 7) (string-to-number (match-string 7 s)))
|
||
(nodefault nil)
|
||
(t 0))
|
||
(string-to-number (match-string 4 s))
|
||
(string-to-number (match-string 3 s))
|
||
(string-to-number (match-string 2 s))
|
||
nil nil nil))
|
||
|
||
(defun org-matcher-time (s)
|
||
"Interpret a time comparison value S as a floating point time.
|
||
|
||
S can be an Org time stamp, a modifier, e.g., \"<+2d>\", or the
|
||
following special strings: \"<now>\", \"<today>\",
|
||
\"<tomorrow>\", and \"<yesterday>\".
|
||
|
||
Return 0. if S is not recognized as a valid value."
|
||
(let ((today (float-time (apply #'encode-time
|
||
(append '(0 0 0) (nthcdr 3 (decode-time)))))))
|
||
(save-match-data
|
||
(cond
|
||
((string= s "<now>") (float-time))
|
||
((string= s "<today>") today)
|
||
((string= s "<tomorrow>") (+ 86400.0 today))
|
||
((string= s "<yesterday>") (- today 86400.0))
|
||
((string-match "\\`<\\([-+][0-9]+\\)\\([hdwmy]\\)>\\'" s)
|
||
(+ today
|
||
(* (string-to-number (match-string 1 s))
|
||
(cdr (assoc (match-string 2 s)
|
||
'(("d" . 86400.0) ("w" . 604800.0)
|
||
("m" . 2678400.0) ("y" . 31557600.0)))))))
|
||
((string-match org-ts-regexp0 s) (org-2ft s))
|
||
(t 0.)))))
|
||
|
||
|
||
|
||
(provide 'org-macs)
|
||
|
||
;;; org-macs.el ends here
|