unofficial mirror of emacs-orgmode@gnu.org
 help / color / mirror / Atom feed
b86ad1f395fab7e74726b65708553ce2d6235356 blob 7684 bytes (raw)

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
 
;;; org-eldoc.el --- display org header and src block info using eldoc -*- lexical-binding: t; -*-

;; Copyright (c) 2014-2020 Free Software Foundation, Inc.

;; Author: Łukasz Gruner <lukasz@gruner.lu>
;; Maintainer: Łukasz Gruner <lukasz@gruner.lu>
;; Version: 6
;; Package-Requires: ((org "8"))
;; URL: https://bitbucket.org/ukaszg/org-eldoc
;; Created: 25/05/2014
;; Keywords: eldoc, outline, breadcrumb, org, babel, minibuffer

;; This file is not part of 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 <http://www.gnu.org/licenses/>.

;;; Commentary:

;;; Changelog:

;; As of 01/11/14 switching license to GPL3 to allow submission to org-mode.
;; 08/11/14 switch code to automatically define eldoc-documentation-function, but don't autostart eldoc-mode.

;;; Code:

(require 'org)
(require 'ob-core)
(require 'eldoc)

(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))

(defgroup org-eldoc nil "" :group 'org)

(defcustom org-eldoc-breadcrumb-separator "/"
  "Breadcrumb separator."
  :group 'org-eldoc
  :type 'string)

(defcustom org-eldoc-test-buffer-name " *Org-eldoc test buffer*"
  "Name of the buffer used while testing for mode-local variable values."
  :group 'org-eldoc
  :type 'string)

(defun org-eldoc-get-breadcrumb ()
  "Return breadcrumb if on a headline or nil."
  (let ((case-fold-search t) cur)
    (save-excursion
      (beginning-of-line)
      (save-match-data
        (when (looking-at org-complex-heading-regexp)
          (setq cur (match-string 4))
          (org-format-outline-path
           (append (org-get-outline-path) (list cur))
           (frame-width) "" org-eldoc-breadcrumb-separator))))))

(defun org-eldoc-get-src-header ()
  "Returns lang and list of header properties if on src definition line and nil otherwise."
  (let ((case-fold-search t) info lang hdr-args)
    (save-excursion
      (beginning-of-line)
      (save-match-data
        (when (looking-at "^[ \t]*#\\+\\(begin\\|end\\)_src")
          (setq info (org-babel-get-src-block-info 'light)
                lang (propertize (or (nth 0 info) "no lang") 'face 'font-lock-string-face)
                hdr-args (nth 2 info))
          (concat
           lang
           ": "
           (mapconcat
            (lambda (elem)
              (when (and (cdr elem) (not (string= "" (cdr elem))))
                (concat
                 (propertize (symbol-name (car elem)) 'face 'org-list-dt)
                 " "
                 (propertize (cdr elem) 'face 'org-verbatim)
                 " ")))
            hdr-args " ")))))))

(defun org-eldoc-get-src-lang ()
  "Return value of lang for the current block if in block body and nil otherwise."
  (let ((element (save-match-data (org-element-at-point))))
    (and (eq (org-element-type element) 'src-block)
	 (>= (line-beginning-position)
	     (org-element-property :post-affiliated element))
	 (<=
	  (line-end-position)
	  (org-with-wide-buffer
	   (goto-char (org-element-property :end element))
	   (skip-chars-backward " \t\n")
	   (line-end-position)))
	 (org-element-property :language element))))

(defvar org-eldoc-local-functions-cache (make-hash-table :size 40 :test 'equal)
  "Cache of major-mode's eldoc-documentation-functions,
 used by \\[org-eldoc-get-mode-local-documentation-function].")

(defun org-eldoc-get-mode-local-documentation-function (lang)
  "Check if LANG-mode sets eldoc-documentation-function and return its value."
  (let ((cached-func (gethash lang org-eldoc-local-functions-cache 'empty))
        (mode-func (org-src-get-lang-mode lang))
        doc-func)
    (if (eq 'empty cached-func)
        (when (fboundp mode-func)
	  (with-temp-buffer
	    (funcall mode-func)
	    (setq doc-func (if (boundp 'eldoc-documentation-functions)
			       (let ((doc-funs eldoc-documentation-functions))
				 (lambda (callback)
				   (let ((eldoc-documentation-functions doc-funs)
					 (eldoc--make-callback (lambda (_ignored) callback)))
				     (funcall eldoc-documentation-strategy))))
			     (and eldoc-documentation-function
				  (symbol-value 'eldoc-documentation-function))))
	    (puthash lang doc-func org-eldoc-local-functions-cache))
          doc-func)
      cached-func)))

(declare-function c-eldoc-print-current-symbol-info "c-eldoc" ())
(declare-function css-eldoc-function "css-eldoc" ())
(declare-function php-eldoc-function "php-eldoc" ())
(declare-function go-eldoc--documentation-function "go-eldoc" ())

(defun org-eldoc-documentation-function (&rest args)
  "Return breadcrumbs when on a headline, args for src block header-line,
  calls other documentation functions depending on lang when inside src body."
  (or
   (org-eldoc-get-breadcrumb)
   (org-eldoc-get-src-header)
   (let ((lang (org-eldoc-get-src-lang)))
     (cond ((or
             (string= lang "emacs-lisp")
             (string= lang "elisp"))
	    (cond ((boundp 'eldoc-documentation-functions) ; Emacs>=28
		   (let ((eldoc-documentation-functions
			  '(elisp-eldoc-var-docstring elisp-eldoc-funcall)))
		     (eldoc-print-current-symbol-info)))
		  ((fboundp 'elisp-eldoc-documentation-function)
		   (elisp-eldoc-documentation-function))
		  (t  			; Emacs<25
		   (let (eldoc-documentation-function)
		     (eldoc-print-current-symbol-info)))))
           ((or
             (string= lang "c") ;; http://github.com/nflath/c-eldoc
             (string= lang "C")) (when (require 'c-eldoc nil t)
                                   (c-eldoc-print-current-symbol-info)))
           ;; https://github.com/zenozeng/css-eldoc
           ((string= lang "css") (when (require 'css-eldoc nil t)
                                   (css-eldoc-function)))
           ;; https://github.com/zenozeng/php-eldoc
           ((string= lang "php") (when (require 'php-eldoc nil t)
                                   (php-eldoc-function)))
           ((or
             (string= lang "go")
             (string= lang "golang")) (when (require 'go-eldoc nil t)
                                        (go-eldoc--documentation-function)))
           (t (let ((doc-fun (org-eldoc-get-mode-local-documentation-function lang))
		    (callback (car args)))
                (when (functionp doc-fun)
		  (if (functionp callback)
		      (funcall doc-fun callback)
		    (funcall doc-fun)))))))))

;;;###autoload
(defun org-eldoc-load ()
  "Set up org-eldoc documentation function."
  (interactive)
  ;; This approach is taken from python.el.
  (with-no-warnings
    (cond
     ((null eldoc-documentation-function) ; Emacs<25
      (setq-local eldoc-documentation-function
		  #'org-eldoc-documentation-function))
     ((boundp 'eldoc-documentation-functions) ; Emacs>=28
      (add-hook 'eldoc-documentation-functions
		#'org-eldoc-documentation-function nil t))
     (t
      (add-function :before-until (local 'eldoc-documentation-function)
		    #'org-eldoc-documentation-function)))))

;;;###autoload
(add-hook 'org-mode-hook #'org-eldoc-load)

(provide 'org-eldoc)

;; -*- coding: utf-8-emacs; -*-

;;; org-eldoc.el ends here
debug log:

solving b86ad1f39 ...
found b86ad1f39 in https://yhetil.org/orgmode/87k0woxxb9.fsf@gmail.com/
found 3b0999340 in /path/to/orgmode.git
preparing index
index prepared:
100644 3b0999340867b56bc8a2d77f4a9f1d829e1e8e32	contrib/lisp/org-eldoc.el

applying [1/1] https://yhetil.org/orgmode/87k0woxxb9.fsf@gmail.com/
diff --git a/contrib/lisp/org-eldoc.el b/contrib/lisp/org-eldoc.el
index 3b0999340..b86ad1f39 100644

Checking patch contrib/lisp/org-eldoc.el...
Applied patch contrib/lisp/org-eldoc.el cleanly.

index at:
100644 b86ad1f395fab7e74726b65708553ce2d6235356	contrib/lisp/org-eldoc.el

unofficial mirror of emacs-orgmode@gnu.org

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://yhetil.org/orgmode/0 orgmode/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 orgmode orgmode/ https://yhetil.org/orgmode \
		emacs-orgmode@gnu.org
	public-inbox-index orgmode

Example config snippet for mirrors.
Newsgroups are available over NNTP:
	nntp://news.yhetil.org/yhetil.emacs.orgmode
	nntp://news.gmane.io/gmane.emacs.orgmode


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git