lisp/org-pcomplete.el

   1 ;;; org-pcomplete.el --- In-buffer completion code
   2
   3 ;; Copyright (C) 2004-2014 Free Software Foundation, Inc.
   4 ;;
   5 ;; Author: Carsten Dominik <carsten at orgmode dot org>
   6 ;;         John Wiegley <johnw at gnu dot org>
   7 ;; Keywords: outlines, hypermedia, calendar, wp
   8 ;; Homepage: http://orgmode.org
   9 ;;
  10 ;; This file is part of GNU Emacs.
  11 ;;
  12 ;; GNU Emacs is free software: you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation, either version 3 of the License, or
  15 ;; (at your option) any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  24 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  25 ;;
  26 ;;; Code:
  27
  28 ;;;; Require other packages
  29
  30 (eval-when-compile
  31   (require 'cl))
  32
  33 (require 'org-macs)
  34 (require 'org-compat)
  35 (require 'pcomplete)
  36
  37 (declare-function org-split-string "org" (string &optional separators))
  38 (declare-function org-make-org-heading-search-string "org"
  39                   (&optional string))
  40 (declare-function org-get-buffer-tags "org" ())
  41 (declare-function org-get-tags "org" ())
  42 (declare-function org-buffer-property-keys "org"
  43                   (&optional include-specials include-defaults include-columns))
  44 (declare-function org-entry-properties "org" (&optional pom which specific))
  45
  46 ;;;; Customization variables
  47
  48 (defgroup org-complete nil
  49   "Outline-based notes management and organizer."
  50   :tag "Org"
  51   :group 'org)
  52
  53 (defvar org-drawer-regexp)
  54 (defvar org-property-re)
  55
  56 (defun org-thing-at-point ()
  57   "Examine the thing at point and let the caller know what it is.
  58 The return value is a string naming the thing at point."
  59   (let ((beg1 (save-excursion
  60                 (skip-chars-backward (org-re "[:alnum:]-_@"))
  61                 (point)))
  62         (beg (save-excursion
  63                (skip-chars-backward "a-zA-Z0-9-_:$")
  64                (point)))
  65         (line-to-here (buffer-substring (point-at-bol) (point))))
  66     (cond
  67      ((string-match "\\`[ \t]*#\\+begin: clocktable[ \t]+" line-to-here)
  68       (cons "block-option" "clocktable"))
  69      ((string-match "\\`[ \t]*#\\+begin_src[ \t]+" line-to-here)
  70       (cons "block-option" "src"))
  71      ((save-excursion
  72         (re-search-backward "^[ \t]*#\\+\\([A-Z_]+\\):.*"
  73                             (line-beginning-position) t))
  74       (cons "file-option" (match-string-no-properties 1)))
  75      ((string-match "\\`[ \t]*#\\+[a-zA-Z_]*\\'" line-to-here)
  76       (cons "file-option" nil))
  77      ((equal (char-before beg) ?\[)
  78       (cons "link" nil))
  79      ((equal (char-before beg) ?\\)
  80       (cons "tex" nil))
  81      ((string-match "\\`\\*+[ \t]+\\'"
  82                     (buffer-substring (point-at-bol) beg))
  83       (cons "todo" nil))
  84      ((equal (char-before beg) ?*)
  85       (cons "searchhead" nil))
  86      ((and (equal (char-before beg1) ?:)
  87            (equal (char-after (point-at-bol)) ?*))
  88       (cons "tag" nil))
  89      ((and (equal (char-before beg1) ?:)
  90            (not (equal (char-after (point-at-bol)) ?*))
  91            (save-excursion
  92              (move-beginning-of-line 1)
  93              (skip-chars-backward "[ \t\n]")
  94              ;; org-drawer-regexp matches a whole line but while
  95              ;; looking-back, we just ignore trailing whitespaces
  96              (or (org-looking-back (substring org-drawer-regexp 0 -1))
  97                  (org-looking-back org-property-re))))
  98       (cons "prop" nil))
  99      ((and (equal (char-before beg1) ?:)
 100            (not (equal (char-after (point-at-bol)) ?*)))
 101       (cons "drawer" nil))
 102      (t nil))))
 103
 104 (defun org-command-at-point ()
 105   "Return the qualified name of the Org completion entity at point.
 106 When completing for #+STARTUP, for example, this function returns
 107 \"file-option/startup\"."
 108   (let ((thing (org-thing-at-point)))
 109     (cond
 110      ((string= "file-option" (car thing))
 111       (concat (car thing)
 112               (and (cdr thing) (concat "/" (downcase (cdr thing))))))
 113      ((string= "block-option" (car thing))
 114       (concat (car thing) "/" (downcase (cdr thing))))
 115      (t (car thing)))))
 116
 117 (defun org-parse-arguments ()
 118   "Parse whitespace separated arguments in the current region."
 119   (let ((begin (line-beginning-position))
 120         (end (line-end-position))
 121         begins args)
 122     (save-restriction
 123       (narrow-to-region begin end)
 124       (save-excursion
 125         (goto-char (point-min))
 126         (while (not (eobp))
 127           (skip-chars-forward " \t\n[")
 128           (setq begins (cons (point) begins))
 129           (skip-chars-forward "^ \t\n[")
 130           (setq args (cons (buffer-substring-no-properties
 131                             (car begins) (point))
 132                            args)))
 133         (cons (reverse args) (reverse begins))))))
 134
 135 (defun org-pcomplete-initial ()
 136   "Calls the right completion function for first argument completions."
 137   (ignore
 138    (funcall (or (pcomplete-find-completion-function
 139                  (car (org-thing-at-point)))
 140                 pcomplete-default-completion-function))))
 141
 142 (defvar org-options-keywords)            ; From org.el
 143 (defvar org-element-block-name-alist)    ; From org-element.el
 144 (defvar org-element-affiliated-keywords) ; From org-element.el
 145 (declare-function org-get-export-keywords "org" ())
 146 (defun pcomplete/org-mode/file-option ()
 147   "Complete against all valid file options."
 148   (require 'org-element)
 149   (pcomplete-here
 150    (org-pcomplete-case-double
 151     (append (mapcar (lambda (keyword) (concat keyword " "))
 152                     org-options-keywords)
 153             (mapcar (lambda (keyword) (concat keyword ": "))
 154                     org-element-affiliated-keywords)
 155             (let (block-names)
 156               (dolist (block-info org-element-block-name-alist block-names)
 157                 (let ((name (car block-info)))
 158                   (push (format "END_%s" name) block-names)
 159                   (push (concat "BEGIN_"
 160                                 name
 161                                 ;; Since language is compulsory in
 162                                 ;; source blocks, add a space.
 163                                 (and (equal name "SRC") " "))
 164                         block-names)
 165                   (push (format "ATTR_%s: " name) block-names))))
 166             (mapcar (lambda (keyword) (concat keyword ": "))
 167                     (org-get-export-keywords))))
 168    (substring pcomplete-stub 2)))
 169
 170 (defun pcomplete/org-mode/file-option/author ()
 171   "Complete arguments for the #+AUTHOR file option."
 172   (pcomplete-here (list user-full-name)))
 173
 174 (defvar org-time-stamp-formats)
 175 (defun pcomplete/org-mode/file-option/date ()
 176   "Complete arguments for the #+DATE file option."
 177   (pcomplete-here (list (format-time-string (car org-time-stamp-formats)))))
 178
 179 (defun pcomplete/org-mode/file-option/email ()
 180   "Complete arguments for the #+EMAIL file option."
 181   (pcomplete-here (list user-mail-address)))
 182
 183 (defvar org-export-exclude-tags)
 184 (defun pcomplete/org-mode/file-option/exclude_tags ()
 185   "Complete arguments for the #+EXCLUDE_TAGS file option."
 186   (require 'ox)
 187   (pcomplete-here
 188    (and org-export-exclude-tags
 189         (list (mapconcat 'identity org-export-exclude-tags " ")))))
 190
 191 (defvar org-file-tags)
 192 (defun pcomplete/org-mode/file-option/filetags ()
 193   "Complete arguments for the #+FILETAGS file option."
 194   (pcomplete-here (and org-file-tags (mapconcat 'identity org-file-tags " "))))
 195
 196 (defvar org-export-default-language)
 197 (defun pcomplete/org-mode/file-option/language ()
 198   "Complete arguments for the #+LANGUAGE file option."
 199   (require 'ox)
 200   (pcomplete-here
 201    (pcomplete-uniqify-list
 202     (list org-export-default-language "en"))))
 203
 204 (defvar org-default-priority)
 205 (defvar org-highest-priority)
 206 (defvar org-lowest-priority)
 207 (defun pcomplete/org-mode/file-option/priorities ()
 208   "Complete arguments for the #+PRIORITIES file option."
 209   (pcomplete-here (list (format "%c %c %c"
 210                                 org-highest-priority
 211                                 org-lowest-priority
 212                                 org-default-priority))))
 213
 214 (defvar org-export-select-tags)
 215 (defun pcomplete/org-mode/file-option/select_tags ()
 216   "Complete arguments for the #+SELECT_TAGS file option."
 217   (require 'ox)
 218   (pcomplete-here
 219    (and org-export-select-tags
 220         (list (mapconcat 'identity org-export-select-tags " ")))))
 221
 222 (defvar org-startup-options)
 223 (defun pcomplete/org-mode/file-option/startup ()
 224   "Complete arguments for the #+STARTUP file option."
 225   (while (pcomplete-here
 226           (let ((opts (pcomplete-uniqify-list
 227                        (mapcar 'car org-startup-options))))
 228             ;; Some options are mutually exclusive, and shouldn't be completed
 229             ;; against if certain other options have already been seen.
 230             (dolist (arg pcomplete-args)
 231               (cond
 232                ((string= arg "hidestars")
 233                 (setq opts (delete "showstars" opts)))))
 234             opts))))
 235
 236 (defvar org-tag-alist)
 237 (defun pcomplete/org-mode/file-option/tags ()
 238   "Complete arguments for the #+TAGS file option."
 239   (pcomplete-here
 240    (list
 241     (mapconcat (lambda (x)
 242                  (cond
 243                   ((eq :startgroup (car x)) "{")
 244                   ((eq :endgroup (car x)) "}")
 245                   ((eq :grouptags (car x)) ":")
 246                   ((eq :newline (car x)) "\\n")
 247                   ((cdr x) (format "%s(%c)" (car x) (cdr x)))
 248                   (t (car x))))
 249                org-tag-alist " "))))
 250
 251 (defun pcomplete/org-mode/file-option/title ()
 252   "Complete arguments for the #+TITLE file option."
 253   (pcomplete-here
 254    (let ((visited-file (buffer-file-name (buffer-base-buffer))))
 255      (list (or (and visited-file
 256                     (file-name-sans-extension
 257                      (file-name-nondirectory visited-file)))
 258                (buffer-name (buffer-base-buffer)))))))
 259
 260
 261 (declare-function org-export-backend-options "org-export" (cl-x))
 262 (defun pcomplete/org-mode/file-option/options ()
 263   "Complete arguments for the #+OPTIONS file option."
 264   (while (pcomplete-here
 265           (pcomplete-uniqify-list
 266            (append
 267             ;; Hard-coded OPTION items always available.
 268             '("H:" "\\n:" "num:" "timestamp:" "arch:" "author:" "c:"
 269               "creator:" "date:" "d:" "email:" "*:" "e:" "::" "f:"
 270               "inline:" "tex:" "p:" "pri:" "':" "-:" "stat:" "^:" "toc:"
 271               "|:" "tags:" "tasks:" "<:" "todo:")
 272             ;; OPTION items from registered back-ends.
 273             (let (items)
 274               (dolist (backend (org-bound-and-true-p
 275                                 org-export--registered-backends))
 276                 (dolist (option (org-export-backend-options backend))
 277                   (let ((item (nth 2 option)))
 278                     (when item (push (concat item ":") items)))))
 279               items))))))
 280
 281 (defun pcomplete/org-mode/file-option/infojs_opt ()
 282   "Complete arguments for the #+INFOJS_OPT file option."
 283   (while (pcomplete-here
 284           (pcomplete-uniqify-list
 285            (mapcar (lambda (item) (format "%s:" (car item)))
 286                    (org-bound-and-true-p org-html-infojs-opts-table))))))
 287
 288 (defun pcomplete/org-mode/file-option/bind ()
 289   "Complete arguments for the #+BIND file option, which are variable names."
 290   (let (vars)
 291     (mapatoms
 292      (lambda (a) (if (boundp a) (setq vars (cons (symbol-name a) vars)))))
 293     (pcomplete-here vars)))
 294
 295 (defvar org-link-abbrev-alist-local)
 296 (defvar org-link-abbrev-alist)
 297 (defun pcomplete/org-mode/link ()
 298   "Complete against defined #+LINK patterns."
 299   (pcomplete-here
 300    (pcomplete-uniqify-list
 301     (copy-sequence
 302      (append (mapcar 'car org-link-abbrev-alist-local)
 303              (mapcar 'car org-link-abbrev-alist))))))
 304
 305 (defvar org-entities)
 306 (defun pcomplete/org-mode/tex ()
 307   "Complete against TeX-style HTML entity names."
 308   (require 'org-entities)
 309   (while (pcomplete-here
 310           (pcomplete-uniqify-list (remove nil (mapcar 'car-safe org-entities)))
 311           (substring pcomplete-stub 1))))
 312
 313 (defvar org-todo-keywords-1)
 314 (defun pcomplete/org-mode/todo ()
 315   "Complete against known TODO keywords."
 316   (pcomplete-here (pcomplete-uniqify-list (copy-sequence org-todo-keywords-1))))
 317
 318 (defvar org-todo-line-regexp)
 319 (defun pcomplete/org-mode/searchhead ()
 320   "Complete against all headings.
 321 This needs more work, to handle headings with lots of spaces in them."
 322   (while
 323       (pcomplete-here
 324        (save-excursion
 325          (goto-char (point-min))
 326          (let (tbl)
 327            (while (re-search-forward org-todo-line-regexp nil t)
 328              (push (org-make-org-heading-search-string
 329                     (match-string-no-properties 3))
 330                    tbl))
 331            (pcomplete-uniqify-list tbl)))
 332        (substring pcomplete-stub 1))))
 333
 334 (defvar org-tag-alist)
 335 (defun pcomplete/org-mode/tag ()
 336   "Complete a tag name.  Omit tags already set."
 337   (while (pcomplete-here
 338           (mapcar (lambda (x)
 339                     (concat x ":"))
 340                   (let ((lst (pcomplete-uniqify-list
 341                               (or (remove
 342                                    nil
 343                                    (mapcar (lambda (x)
 344                                              (and (stringp (car x)) (car x)))
 345                                            org-tag-alist))
 346                                   (mapcar 'car (org-get-buffer-tags))))))
 347                     (dolist (tag (org-get-tags))
 348                       (setq lst (delete tag lst)))
 349                     lst))
 350           (and (string-match ".*:" pcomplete-stub)
 351                (substring pcomplete-stub (match-end 0))))))
 352
 353 (defun pcomplete/org-mode/prop ()
 354   "Complete a property name.  Omit properties already set."
 355   (pcomplete-here
 356    (mapcar (lambda (x)
 357              (concat x ": "))
 358            (let ((lst (pcomplete-uniqify-list
 359                        (copy-sequence
 360                         (org-buffer-property-keys nil t t)))))
 361              (dolist (prop (org-entry-properties))
 362                (setq lst (delete (car prop) lst)))
 363              lst))
 364    (substring pcomplete-stub 1)))
 365
 366 (defun pcomplete/org-mode/block-option/src ()
 367   "Complete the arguments of a begin_src block.
 368 Complete a language in the first field, the header arguments and switches."
 369   (pcomplete-here
 370    (mapcar
 371     (lambda(x) (symbol-name (nth 3 x)))
 372     (cdr (car (cdr (memq :key-type (plist-get
 373                                     (symbol-plist
 374                                      'org-babel-load-languages)
 375                                     'custom-type)))))))
 376   (while (pcomplete-here
 377           '("-n" "-r" "-l"
 378             ":cache" ":colnames" ":comments" ":dir" ":eval" ":exports"
 379             ":file" ":hlines" ":no-expand" ":noweb" ":results" ":rownames"
 380             ":session" ":shebang" ":tangle" ":tangle-mode" ":var"))))
 381
 382 (defun pcomplete/org-mode/block-option/clocktable ()
 383   "Complete keywords in a clocktable line."
 384   (while (pcomplete-here '(":maxlevel" ":scope" ":lang"
 385                            ":tstart" ":tend" ":block" ":step"
 386                            ":stepskip0" ":fileskip0"
 387                            ":emphasize" ":link" ":narrow" ":indent"
 388                            ":tcolumns" ":level" ":compact" ":timestamp"
 389                            ":formula" ":formatter" ":wstart" ":mstart"))))
 390
 391 (defun org-pcomplete-case-double (list)
 392   "Return list with both upcase and downcase version of all strings in LIST."
 393   (let (e res)
 394     (while (setq e (pop list))
 395       (setq res (cons (downcase e) (cons (upcase e) res))))
 396     (nreverse res)))
 397
 398 ;;;; Finish up
 399
 400 (provide 'org-pcomplete)
 401
 402 ;;; org-pcomplete.el ends here