blob: d146c189c8718185aaa3f0a535def1925ac2a0d8 (
plain) (
blame)
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
|
;;; wiki-markup.el -- A wikitext mode -*- lexical-binding: t -*-
;; Copyright (C) 2023 Free Software Foundation.
;; Author: Yuchen Pei <id@ypei.org>
;; Package-Requires: ((emacs "28.2"))
;; This file is part of wiki-markup.el.
;; wiki.el is free software: you can redistribute it and/or modify it under
;; the terms of the GNU Affero General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; wiki.el 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 Affero General
;; Public License for more details.
;; You should have received a copy of the GNU Affero General Public
;; License along with wiki.el. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; A wikitext mode for wiki-markup
;;; Code:
(require 'wiki-faces)
(defvar wiki-url-regexp "https?://[^ ]+")
(defvar wiki-external-link-re
(rx (seq "[["
(group (seq "http"
(opt "s")
"://"
(+ (not " "))))
(opt (seq " " (group (+? anything))))
"]]")))
(defvar wiki-internal-link-re
(rx (seq "[["
;; Target
(group
(one-or-more
(not (any "[|]"))))
;; Label (optional)
(opt (seq "|" (group (+? anything))))
"]]"))
)
(defvar wiki-font-lock-keywords
(list
;; Headers
(cons "^======.*======\\ *$" 'wiki-level-6)
(cons "^=====.*=====\\ *$" 'wiki-level-5)
(cons "^====.*====\\ *$" 'wiki-level-4)
(cons "^===.*===\\ *$" 'wiki-level-3)
(cons "^==.*==\\ *$" 'wiki-level-2)
(cons "^=.*=\\ *$" 'wiki-level-1)
(cons "^----+\\ *$" 'wiki-hr-face)
(cons "^ .*$" 'wiki-pre-face)
'(wiki-do-emphasis-faces)
'(wiki-activate-external-links)
'(wiki-activate-internal-links)
))
(defvar wiki-outline-regexp "=+.*=+\ *$")
(defvar wiki-mode-hook '(wiki-guess-site))
(defvar-local wiki-site nil
"The identifier of the wiki site")
(defun wiki-follow-wikilink-action (data)
"Button action to follow a wikilink"
(funcall (wiki-site-fetcher wiki-site) (alist-get 'title data)))
(defun wiki-guess-site ()
"Guess the wiki-site from the default directory."
(setq-local wiki-site
(let ((guessed
(intern (file-name-base
(directory-file-name default-directory)))))
(if (alist-get guessed wiki-sites)
guessed
'local)))
)
(defun wiki-outline-level ()
(when (looking-at "\\(=+\\).*[^=]\\(=+\\)\\ *$")
(min (length (match-string 1))
(length (match-string 2))
6)))
;; Like `org-do-emphasis-faces'
(defun wiki-do-emphasis-faces (limit)
(while (re-search-forward "\\(''+\\)[^ \t\n].*?[^ \t\n']\\(''+\\)" limit t)
(let ((start (match-beginning 0))
(end (match-end 0)))
(pcase (min (length (match-string 1)) (length (match-string 2)))
(2 (add-face-text-property start end 'wiki-italic))
(3 (add-face-text-property start end 'wiki-bold))
(_ (add-face-text-property start end 'wiki-bold-italic))
))))
;; Like `org-activate-links'
(defun wiki-activate-links (link-re limit)
(save-excursion
(goto-char (point-min))
(while (re-search-forward link-re limit t)
(let ((start (match-beginning 0))
(end (match-end 0))
(target-start (match-beginning 1))
(target-end (match-end 1))
(label-start (or (match-beginning 2) (match-beginning 1)))
(label-end (or (match-end 2) (match-end 1)))
(title (buffer-substring-no-properties (match-beginning 1)
(match-end 1)))
)
(put-text-property start label-start 'invisible t)
(make-text-button start end
'action 'wiki-follow-wikilink-action
'button-data `((title . ,title)))
(put-text-property start end 'help-echo
(format "LINK: %s"
(buffer-substring-no-properties
target-start target-end)))
(add-face-text-property start end 'org-link)
(put-text-property label-end end 'invisible t)
(add-text-properties (1- label-start) label-start
'(rear-nonsticky (invisible)))
(add-text-properties (1- label-end) label-end
'(rear-nonsticky (invisible)))
))))
(defun wiki-activate-internal-links (limit)
(wiki-activate-links wiki-internal-link-re limit))
(defun wiki-activate-external-links (limit)
(wiki-activate-links wiki-external-link-re limit))
(define-derived-mode wiki-mode outline-mode "Wiki"
"A wikitext mode."
(setq-local comment-start "<!--")
(setq-local comment-end "-->")
(setq-local font-lock-defaults
'(wiki-font-lock-keywords
t
nil
nil
(font-lock-extra-managed-props
invisible font-lock-face button-data action category
button htmlize-link help-echo)))
(setq-local outline-regexp wiki-outline-regexp)
(setq-local outline-level 'wiki-outline-level)
)
(defun set-wiki-site (wiki-site)
(interactive (list
(completing-read "Set wiki site: "
(mapcar 'car wiki-sites))))
(setq-local wiki-site (intern wiki-site)))
(provide 'wiki-markup)
;;; wiki-markup.el ends here
|
