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mirror of https://git.savannah.gnu.org/git/emacs/org-mode.git synced 2024-12-02 08:22:16 +00:00
org-mode/lisp/org-pcomplete.el
Stefan Monnier 7dd1cfb6ca Backport commit f8dbefbaa from Emacs
* lisp/ob-comint.el (org-babel-comint-in-buffer)
(org-babel-comint-with-output): Use `declare`.

* lisp/ob-core.el (org-babel-map-src-blocks): Use `declare`.
(org-babel-result-cond): Simplify edebug spec.

* lisp/org-clock.el (org-with-clock-position, org-with-clock):
* lisp/org-agenda.el (org-agenda-with-point-at-orig-entry):
* lisp/ob-tangle.el (org-babel-with-temp-filebuffer): Use `declare`.

Use `declare` instead of `def-edebug-spec` in most places
f8dbefbaa59bb17dd4a2dfa4d9ff560c46785792
Stefan Monnier
Fri Feb 12 16:08:01 2021 -0500
2021-02-14 17:38:07 -05:00

453 lines
16 KiB
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;;; org-pcomplete.el --- In-buffer Completion Code -*- lexical-binding: t; -*-
;; Copyright (C) 2004-2021 Free Software Foundation, Inc.
;;
;; Author: Carsten Dominik <carsten at orgmode dot org>
;; John Wiegley <johnw at gnu dot org>
;; Keywords: outlines, hypermedia, calendar, wp
;; Homepage: https://orgmode.org
;;
;; This file is part of GNU Emacs.
;;
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Code:
;;;; Require other packages
(require 'org-macs)
(require 'org-compat)
(require 'pcomplete)
(declare-function org-at-heading-p "org" (&optional ignored))
(declare-function org-babel-combine-header-arg-lists "ob-core" (original &rest others))
(declare-function org-babel-get-src-block-info "ob-core" (&optional light datum))
(declare-function org-before-first-heading-p "org" ())
(declare-function org-buffer-property-keys "org" (&optional specials defaults columns))
(declare-function org-element-at-point "org-element" ())
(declare-function org-element-property "org-element" property element)
(declare-function org-element-type "org-element" (element))
(declare-function org-end-of-meta-data "org" (&optional full))
(declare-function org-entry-properties "org" (&optional pom which))
(declare-function org-export-backend-options "ox" (cl-x) t)
(declare-function org-get-buffer-tags "org" ())
(declare-function org-get-export-keywords "org" ())
(declare-function org-get-heading "org" (&optional no-tags no-todo no-priority no-comment))
(declare-function org-get-tags "org" (&optional pos local))
(declare-function org-link-heading-search-string "ol" (&optional string))
(declare-function org-tag-alist-to-string "org" (alist &optional skip-key))
(defvar org-babel-common-header-args-w-values)
(defvar org-current-tag-alist)
(defvar org-priority-default)
(defvar org-drawer-regexp)
(defvar org-element-affiliated-keywords)
(defvar org-entities)
(defvar org-export-default-language)
(defvar org-export-exclude-tags)
(defvar org-export-select-tags)
(defvar org-file-tags)
(defvar org-priority-highest)
(defvar org-link-abbrev-alist)
(defvar org-link-abbrev-alist-local)
(defvar org-priority-lowest)
(defvar org-options-keywords)
(defvar org-outline-regexp)
(defvar org-property-re)
(defvar org-startup-options)
(defvar org-tag-re)
(defvar org-time-stamp-formats)
(defvar org-todo-keywords-1)
(defvar org-todo-line-regexp)
;;; Internal Functions
(defun org-thing-at-point ()
"Examine the thing at point and let the caller know what it is.
The return value is a string naming the thing at point."
(let ((line-to-here (org-current-line-string t))
(case-fold-search t))
(cond
;; Parameters on a clock table opening line.
((org-match-line "[ \t]*#\\+BEGIN: clocktable[ \t]")
(cons "block-option" "clocktable"))
;; Flags and parameters on a source block opening line.
((org-match-line "[ \t]*#\\+BEGIN_SRC[ \t]")
(cons "block-option" "src"))
;; Value for a known keyword.
((org-match-line "[ \t]*#\\+\\(\\S-+\\):")
(cons "file-option" (match-string-no-properties 1)))
;; Keyword name.
((and (org-match-line "[ \t]*#\\+[a-zA-Z_]*$")
(looking-at-p "[ \t]*$"))
(cons "file-option" nil))
;; Link abbreviation.
((save-excursion
(skip-chars-backward "-A-Za-z0-9_")
(and (eq ?\[ (char-before))
(eq ?\[ (char-before (1- (point))))))
(cons "link" nil))
;; Entities. Some of them accept numbers, but only at their end.
;; So, we first skip numbers, then letters.
((eq ?\\ (save-excursion
(skip-chars-backward "0-9")
(skip-chars-backward "a-zA-Z")
(char-before)))
(cons "tex" nil))
;; Tags on a headline.
((and (org-match-line
(format "\\*+ \\(?:.+? \\)?\\(:\\)\\(\\(?::\\|%s\\)+\\)?[ \t]*$"
org-tag-re))
(or (org-point-in-group (point) 2)
(= (point) (match-end 1))))
(cons "tag" nil))
;; TODO keywords on an empty headline.
((and (string-match "^\\*+ +\\S-*$" line-to-here)
(looking-at-p "[ \t]*$"))
(cons "todo" nil))
;; Heading after a star for search strings or links.
((save-excursion
(skip-chars-backward "^*" (line-beginning-position))
(and (eq ?* (char-before))
(eq (char-before (1- (point))) '?\[)
(eq (char-before (- (point) 2)) '?\[)))
(cons "searchhead" nil))
;; Property or drawer name, depending on point. If point is at
;; a valid location for a node property, offer completion on all
;; node properties in the buffer. Otherwise, offer completion on
;; all drawer names, including "PROPERTIES".
((and (string-match "^[ \t]*:\\S-*$" line-to-here)
(looking-at-p "[ \t]*$"))
(let ((origin (line-beginning-position)))
(if (org-before-first-heading-p) (cons "drawer" nil)
(save-excursion
(org-end-of-meta-data)
(if (or (= origin (point))
(not (org-match-line "[ \t]*:PROPERTIES:[ \t]*$")))
(cons "drawer" nil)
(while (org-match-line org-property-re)
(forward-line))
(if (= origin (point)) (cons "prop" nil)
(cons "drawer" nil)))))))
(t nil))))
(defun org-pcomplete-case-double (list)
"Return list with both upcase and downcase version of all strings in LIST."
(let (e res)
(while (setq e (pop list))
(setq res (cons (downcase e) (cons (upcase e) res))))
(nreverse res)))
;;; Completion API
(defun org-command-at-point ()
"Return the qualified name of the Org completion entity at point.
When completing for #+STARTUP, for example, this function returns
\"file-option/startup\"."
(let ((thing (org-thing-at-point)))
(cond
((string= "file-option" (car thing))
(concat (car thing)
(and (cdr thing) (concat "/" (downcase (cdr thing))))))
((string= "block-option" (car thing))
(concat (car thing) "/" (downcase (cdr thing))))
(t (car thing)))))
(defun org-parse-arguments ()
"Parse whitespace separated arguments in the current region."
(let ((begin (line-beginning-position))
(end (line-end-position))
begins args)
(save-restriction
(narrow-to-region begin end)
(save-excursion
(goto-char (point-min))
(while (not (eobp))
(skip-chars-forward " \t\n[")
(setq begins (cons (point) begins))
(skip-chars-forward "^ \t\n[")
(setq args (cons (buffer-substring-no-properties
(car begins) (point))
args)))
(cons (reverse args) (reverse begins))))))
(defun org-pcomplete-initial ()
"Calls the right completion function for first argument completions."
(ignore
(funcall (or (pcomplete-find-completion-function
(car (org-thing-at-point)))
pcomplete-default-completion-function))))
;;; Completion functions
(defun pcomplete/org-mode/file-option ()
"Complete against all valid file options."
(require 'org-element)
(pcomplete-here
(org-pcomplete-case-double
(append (mapcar (lambda (keyword) (concat keyword " "))
org-options-keywords)
(mapcar (lambda (keyword) (concat keyword ": "))
org-element-affiliated-keywords)
(let (block-names)
(dolist (name
'("CENTER" "COMMENT" "EXAMPLE" "EXPORT" "QUOTE" "SRC"
"VERSE")
block-names)
(push (format "END_%s" name) block-names)
(push (concat "BEGIN_"
name
;; Since language is compulsory in
;; export blocks source blocks, add
;; a space.
(and (member name '("EXPORT" "SRC")) " "))
block-names)
(push (format "ATTR_%s: " name) block-names)))
(mapcar (lambda (keyword) (concat keyword ": "))
(org-get-export-keywords))))
(substring pcomplete-stub 2)))
(defun pcomplete/org-mode/file-option/author ()
"Complete arguments for the #+AUTHOR file option."
(pcomplete-here (list user-full-name)))
(defun pcomplete/org-mode/file-option/date ()
"Complete arguments for the #+DATE file option."
(pcomplete-here (list (format-time-string (car org-time-stamp-formats)))))
(defun pcomplete/org-mode/file-option/email ()
"Complete arguments for the #+EMAIL file option."
(pcomplete-here (list user-mail-address)))
(defun pcomplete/org-mode/file-option/exclude_tags ()
"Complete arguments for the #+EXCLUDE_TAGS file option."
(require 'ox)
(pcomplete-here
(and org-export-exclude-tags
(list (mapconcat #'identity org-export-exclude-tags " ")))))
(defun pcomplete/org-mode/file-option/filetags ()
"Complete arguments for the #+FILETAGS file option."
(pcomplete-here (and org-file-tags (mapconcat #'identity org-file-tags " "))))
(defun pcomplete/org-mode/file-option/language ()
"Complete arguments for the #+LANGUAGE file option."
(require 'ox)
(pcomplete-here
(pcomplete-uniquify-list
(list org-export-default-language "en"))))
(defun pcomplete/org-mode/file-option/priorities ()
"Complete arguments for the #+PRIORITIES file option."
(pcomplete-here (list (format "%c %c %c"
org-priority-highest
org-priority-lowest
org-priority-default))))
(defun pcomplete/org-mode/file-option/select_tags ()
"Complete arguments for the #+SELECT_TAGS file option."
(require 'ox)
(pcomplete-here
(and org-export-select-tags
(list (mapconcat #'identity org-export-select-tags " ")))))
(defun pcomplete/org-mode/file-option/startup ()
"Complete arguments for the #+STARTUP file option."
(while (pcomplete-here
(let ((opts (pcomplete-uniquify-list
(mapcar #'car org-startup-options))))
;; Some options are mutually exclusive, and shouldn't be completed
;; against if certain other options have already been seen.
(dolist (arg pcomplete-args)
(cond
((string= arg "hidestars")
(setq opts (delete "showstars" opts)))))
opts))))
(defun pcomplete/org-mode/file-option/tags ()
"Complete arguments for the #+TAGS file option."
(pcomplete-here
(list (org-tag-alist-to-string org-current-tag-alist))))
(defun pcomplete/org-mode/file-option/title ()
"Complete arguments for the #+TITLE file option."
(pcomplete-here
(let ((visited-file (buffer-file-name (buffer-base-buffer))))
(list (or (and visited-file
(file-name-sans-extension
(file-name-nondirectory visited-file)))
(buffer-name (buffer-base-buffer)))))))
(defun pcomplete/org-mode/file-option/options ()
"Complete arguments for the #+OPTIONS file option."
(while (pcomplete-here
(pcomplete-uniquify-list
(append
;; Hard-coded OPTION items always available.
'("H:" "\\n:" "num:" "timestamp:" "arch:" "author:" "c:"
"creator:" "date:" "d:" "email:" "*:" "e:" "::" "f:"
"inline:" "tex:" "p:" "pri:" "':" "-:" "stat:" "^:" "toc:"
"|:" "tags:" "tasks:" "<:" "todo:")
;; OPTION items from registered back-ends.
(let (items)
(dolist (backend (bound-and-true-p
org-export-registered-backends))
(dolist (option (org-export-backend-options backend))
(let ((item (nth 2 option)))
(when item (push (concat item ":") items)))))
items))))))
(defun pcomplete/org-mode/file-option/infojs_opt ()
"Complete arguments for the #+INFOJS_OPT file option."
(while (pcomplete-here
(pcomplete-uniquify-list
(mapcar (lambda (item) (format "%s:" (car item)))
(bound-and-true-p org-html-infojs-opts-table))))))
(defun pcomplete/org-mode/file-option/bind ()
"Complete arguments for the #+BIND file option, which are variable names."
(let (vars)
(mapatoms
(lambda (a) (when (boundp a) (setq vars (cons (symbol-name a) vars)))))
(pcomplete-here vars)))
(defun pcomplete/org-mode/link ()
"Complete against defined #+LINK patterns."
(pcomplete-here
(pcomplete-uniquify-list
(copy-sequence
(mapcar (lambda (e) (concat (car e) ":"))
(append org-link-abbrev-alist-local
org-link-abbrev-alist))))))
(defun pcomplete/org-mode/tex ()
"Complete against TeX-style HTML entity names."
(require 'org-entities)
(while (pcomplete-here
(pcomplete-uniquify-list
(remove nil (mapcar #'car-safe org-entities)))
(substring pcomplete-stub 1))))
(defun pcomplete/org-mode/todo ()
"Complete against known TODO keywords."
(pcomplete-here (pcomplete-uniquify-list (copy-sequence org-todo-keywords-1))))
(defun pcomplete/org-mode/searchhead ()
"Complete against all headings.
This needs more work, to handle headings with lots of spaces in them."
(while (pcomplete-here
(save-excursion
(goto-char (point-min))
(let (tbl)
(while (re-search-forward org-outline-regexp nil t)
;; Remove the leading asterisk from
;; `org-link-heading-search-string' result.
(push (substring (org-link-heading-search-string) 1) tbl))
(pcomplete-uniquify-list tbl)))
;; When completing a bracketed link, i.e., "[[*", argument
;; starts at the star, so remove this character.
(substring pcomplete-stub 1))))
(defun pcomplete/org-mode/tag ()
"Complete a tag name. Omit tags already set."
(while (pcomplete-here
(mapcar (lambda (x) (concat x ":"))
(let ((lst (pcomplete-uniquify-list
(or (remq
nil
(mapcar (lambda (x) (org-string-nw-p (car x)))
org-current-tag-alist))
(mapcar #'car (org-get-buffer-tags))))))
(dolist (tag (org-get-tags nil t))
(setq lst (delete tag lst)))
lst))
(and (string-match ".*:" pcomplete-stub)
(substring pcomplete-stub (match-end 0)))
t)))
(defun pcomplete/org-mode/drawer ()
"Complete a drawer name, including \"PROPERTIES\"."
(pcomplete-here
(org-pcomplete-case-double
(mapcar (lambda (x) (concat x ":"))
(let ((names (list "PROPERTIES")))
(save-excursion
(goto-char (point-min))
(while (re-search-forward org-drawer-regexp nil t)
(let ((drawer (org-element-at-point)))
(when (memq (org-element-type drawer)
'(drawer property-drawer))
(push (org-element-property :drawer-name drawer) names)
(goto-char (org-element-property :end drawer))))))
(pcomplete-uniquify-list names))))
(substring pcomplete-stub 1))) ;remove initial colon
(defun pcomplete/org-mode/prop ()
"Complete a property name. Omit properties already set."
(pcomplete-here
(org-pcomplete-case-double
(mapcar (lambda (x)
(concat x ": "))
(let ((lst (pcomplete-uniquify-list
(copy-sequence (org-buffer-property-keys nil t t)))))
(dolist (prop (org-entry-properties))
(setq lst (delete (car prop) lst)))
lst)))
(substring pcomplete-stub 1)))
(defun pcomplete/org-mode/block-option/src ()
"Complete the arguments of a source block.
Complete a language in the first field, the header arguments and
switches."
(pcomplete-here
(mapcar
(lambda(x) (symbol-name (nth 3 x)))
(cdr (car (cdr (memq :key-type (plist-get
(symbol-plist
'org-babel-load-languages)
'custom-type)))))))
(let* ((info (org-babel-get-src-block-info 'light))
(lang (car info))
(lang-headers (intern (concat "org-babel-header-args:" lang)))
(headers (org-babel-combine-header-arg-lists
org-babel-common-header-args-w-values
(and (boundp lang-headers) (eval lang-headers t)))))
(while (pcomplete-here
(append (mapcar
(lambda (arg) (format ":%s" (symbol-name (car arg))))
headers)
'("-n" "-r" "-l"))))))
(defun pcomplete/org-mode/block-option/clocktable ()
"Complete keywords in a clocktable line."
(while (pcomplete-here '(":maxlevel" ":scope" ":lang"
":tstart" ":tend" ":block" ":step"
":stepskip0" ":fileskip0"
":emphasize" ":link" ":narrow" ":indent"
":hidefiles" ":tcolumns" ":level" ":compact"
":timestamp" ":formula" ":formatter"
":wstart" ":mstart"))))
;;; Finish up
(provide 'org-pcomplete)
;;; org-pcomplete.el ends here