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;;; oddmuse.el -- edit pages on an Oddmuse wiki
;; $Id: oddmuse.el,v 2.2 2007/11/15 14:59:39 rubikitch Exp $
;; Copyright (C) 2006 Alex Schroeder
;; (C) 2007 rubikitch <rubikitch@ruby-lang.org>
;; Latest version: http://www.emacswiki.org/cgi-bin/wiki/download/oddmuse.el
;; Discussion, feedback: http://www.emacswiki.org/cgi-bin/wiki/OddmuseMode
;; This program 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 2 of
;; the License, or (at your option) any later version.
;; This program 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 this program; if not, write to the Free
;; Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
;; MA 02111-1307 USA
;;; Commentary:
;; A simple mode to edit pages on Oddmuse wikis using Emacs.
;; Since text formatting rules depend on the wiki you're writing for,
;; the font-locking can only be an approximation.
;; Put this file in a directory on your `load-path' and
;; add this to your init file:
;; (require 'oddmuse)
;; (setq url-proxy-services '(("http" . "your.proxy.host:portnumber")) ; if needed
;; (oddmuse-mode-initialize)
;; And then use M-x oddmuse-edit to start editing.
;;; History:
;; $Log: oddmuse.el,v $
;; Revision 2.2 2007/11/15 14:59:39 rubikitch
;; Changed command behavior: oddmuse-post
;; With prefix argument, prompts pagename, otherwise set pagename as basename of `buffer-file-name'.
;;
;; Revision 2.1 2007/11/08 17:12:10 rubikitch
;; New implementation! oddmuse.el uses url.el instead of curl.
;; If you use Emacs21, try http://www.emacswiki.org/cgi-bin/wiki/download/oddmuse-curl.el
;; (patch by Taiki SUGAWARA <buzz.taiki@gmail.com>)
;;
;; Revision 1.23 2007/11/08 16:55:12 rubikitch
;; oddmuse-make-completion-table: bugfix
;;
;; Revision 1.22 2007/10/27 08:39:45 rubikitch
;; New command: oddmuse-compute-pagename-completion-table (patch by Stefan Kamphausen)
;;
;; Revision 1.21 2007/10/27 08:20:47 rubikitch
;; fixed shell-quoting problem: "unmatched '"
;;
;; Revision 1.20 2007/10/27 07:39:47 rubikitch
;; New functions: oddmuse-read-wiki-and-pagename, oddmuse-url
;; New commands: oddmuse-browse-page, oddmuse-browse-this-page, oddmuse-kill-url
;;
;; Revision 1.19 2007/10/27 03:08:44 rubikitch
;; * s/egrep/grep -E/
;; * oddmuse-revision-check-command test
;;
;; Revision 1.18 2007/07/12 06:52:56 rubikitch
;; new command: emacswiki-post
;; Use emacswiki-post at `How to save'.
;;
;; Revision 1.17 2007/07/11 20:01:20 rubikitch
;; oddmuse-revision-check-command: use curl instead of w3m
;;
;; Revision 1.16 2007/06/16 15:12:09 rubikitch
;; oddmuse-current-free-link-contents: s/ /_/g
;;
;; Revision 1.15 2007/06/16 14:53:59 rubikitch
;; * refactored `oddmuse-follow'.
;; * fixed WikiName determination bug.
;;
;; Revision 1.14 2007/06/16 14:21:35 rubikitch
;; added RatpoisonWiki and StumpwmWiki to oddmuse-wikis.
;;
;; Revision 1.13 2007/04/24 10:13:26 rubikitch
;; * silence byte compiler (free variables)
;; * `C-u C-c C-o' uses `oddmuse-read-pagename' now.
;;
;; Revision 1.12 2007/04/12 09:02:28 rubikitch
;; applied `Enable "this is a minor change"' patch by Xavier Maillard.
;; new command: oddmuse-toggle-minor (C-c C-m)
;; new variable: oddmuse-use-always-minor
;;
;; Revision 1.11 2007/04/10 16:40:25 rubikitch
;; use autoload cookies. use eval-when-compile. (patch by Xavier Maillard)
;;
;; Revision 1.10 2007/01/17 16:30:11 rubikitch
;; added URLs
;;
;; Revision 1.9 2007/01/17 16:28:20 rubikitch
;; added `(set-buffer-modified-p nil)' in oddmuse-edit.
;;
;; Revision 1.8 2007/01/15 14:28:42 rubikitch
;; new command `oddmuse-insert-pagename'
;;
;; Revision 1.7 2007/01/14 18:15:05 rubikitch
;; fixed `rename-buffer' problem
;;
;; Revision 1.6 2007/01/14 18:07:22 rubikitch
;; fixed typo
;;
;; Revision 1.5 2007/01/14 18:05:02 rubikitch
;; Pages are stored in files. (for fault tolerance)
;;
;; Revision 1.4 2007/01/14 17:31:42 rubikitch
;; refactored.
;; `oddmuse-wikis' is a list of triplets(wikiname url coding-system).
;;
;; Revision 1.3 2007/01/14 16:57:59 rubikitch
;; Maintained by rubikitch
;;
;;; Code:
(require 'cl)
(eval-when-compile (require 'sgml-mode) (require 'skeleton))
(require 'url)
(require 'url-http)
(defcustom oddmuse-directory "~/emacs/oddmuse"
"Directory to store oddmuse pages."
:type '(string)
:group 'oddmuse)
(defcustom oddmuse-wikis
'(("TestWiki" "http://www.emacswiki.org/cgi-bin/test" utf-8)
("EmacsWiki" "http://www.emacswiki.org/cgi-bin/emacs" utf-8)
("CommunityWiki" "http://www.communitywiki.org/cw" utf-8)
("RatpoisonWiki" "http://ratpoison.antidesktop.net/cgi-bin/wiki" utf-8)
("StumpwmWiki" "http://stumpwm.antidesktop.net/cgi-bin/wiki" utf-8)
("OddmuseWiki" "http://www.oddmuse.org/cgi-bin/oddmuse" utf-8))
"Alist mapping wiki names to URLs."
:type '(repeat (list (string :tag "Wiki")
(string :tag "URL")
(symbol :tag "Coding System")))
:group 'oddmuse)
(defcustom oddmuse-username user-full-name
"Username to use when posting.
Setting a username is the polite thing to do."
:type '(string)
:group 'oddmuse)
(defcustom oddmuse-password ""
"Password to use when posting.
You only need this if you want to edit locked pages and you
know an administrator password."
:type '(string)
:group 'oddmuse)
(defcustom oddmuse-use-always-minor nil
"When t, set all the minor mode bit to all editions.
This can be changed for each edition using `oddmuse-toggle-minor'."
:type '(boolean)
:group 'oddmuse)
(defvar oddmuse-get
"action=browse;raw=1;id=%t"
"Command to use for publishing pages.
It must print the page to stdout.
%t URL encoded pagename, eg. HowTo, How_To, or How%20To")
(defvar oddmuse-post
(concat "title=%t;"
"summary=%s;"
"username=%u;"
"password=%p;"
"recent_edit=%m;"
"text=%x")
"URL arguments to use for publishing pages.
%t pagename
%s summary
%u username
%p password
%x text")
(defvar oddmuse-link-pattern
"\\<[A-Z\xc0-\xde]+[a-z\xdf-\xff]+\\([A-Z\xc0-\xde]+[a-z\xdf-\xff]*\\)+\\>"
"The pattern used for finding WikiName.")
(defvar oddmuse-wiki nil
"The current wiki.
Must match a key from `oddmuse-wikis'.")
(defvar oddmuse-page-name nil
"Pagename of the current buffer.")
(defvar oddmuse-pages-hash (make-hash-table :test 'equal)
"The wiki-name / pages pairs.")
(defvar oddmuse-index-get
"action=index;raw=1"
"URL arguments to use for publishing index pages.")
(defvar oddmuse-revision-check
"action=rc;raw=1;showedit=1;rcidonly=%t"
"URL arguments to use for checking current revision of this page.
%t URL encoded pagename, eg. HowTo, How_To, or How%20To")
(defvar oddmuse-revision-check-regexp "^\\(generator\\|last-modified\\|revision\\).+"
"A revision check regexp used to show prompt.")
(defvar oddmuse-minor nil
"Is this editing a minor change ?")
(defun oddmuse-mode-initialize ()
(add-to-list 'auto-mode-alist
`(,(expand-file-name oddmuse-directory) . oddmuse-mode)))
(define-derived-mode oddmuse-mode text-mode "Odd"
"Simple mode to edit wiki pages.
Use \\[oddmuse-follow] to follow links. With prefix, allows you
to specify the target page yourself.
Use \\[oddmuse-post] to post changes. With prefix, allows you to
post the page to a different wiki.
Use \\[oddmuse-edit] to edit a different page. With prefix,
forces a reload of the page instead of just popping to the buffer
if you are already editing the page.
Customize `oddmuse-wikis' to add more wikis to the list.
\\{oddmuse-mode-map}"
(font-lock-add-keywords
nil
'(("^ .+?$" . font-lock-comment-face)
("<\\(/?[a-z]+\\)" 1 font-lock-function-name-face)
("^[*#]\\([*#]+\\)" . font-lock-constant-face)
("^\\([*#]\\)[^*#]" 1 font-lock-builtin-face)))
(font-lock-add-keywords
nil
(list (cons (symbol-value 'oddmuse-link-pattern)
'font-lock-keyword-face)))
(font-lock-mode 1)
(goto-address)
(set (make-local-variable 'sgml-tag-alist)
`(("b") ("code") ("em") ("i") ("strong") ("nowiki")
("pre" \n) ("tt") ("u")))
(set (make-local-variable 'skeleton-transformation) 'identity)
(and buffer-file-name
(set (make-local-variable 'oddmuse-wiki)
(file-name-nondirectory
(substring (file-name-directory buffer-file-name) 0 -1)))
(set (make-local-variable 'oddmuse-page-name)
(file-name-nondirectory buffer-file-name))
;; Initialize oddmuse-minor according to `oddmuse-use-always-minor'
(set (make-local-variable 'oddmuse-minor)
oddmuse-use-always-minor))
(setq indent-tabs-mode nil))
(autoload 'sgml-tag "sgml-mode" t)
(define-key oddmuse-mode-map (kbd "C-c C-t") 'sgml-tag)
(define-key oddmuse-mode-map (kbd "C-c C-o") 'oddmuse-follow)
(define-key oddmuse-mode-map (kbd "C-c C-m") 'oddmuse-toggle-minor)
(define-key oddmuse-mode-map (kbd "C-c C-c") 'oddmuse-post)
(define-key oddmuse-mode-map (kbd "C-x C-v") 'oddmuse-revert)
(define-key oddmuse-mode-map (kbd "C-c C-f") 'oddmuse-edit)
(define-key oddmuse-mode-map (kbd "C-c C-i") 'oddmuse-insert-pagename)
;; This has been stolen from simple-wiki-edit
;;;###autoload
(defun oddmuse-toggle-minor (&optional arg)
"Toggle minor mode state."
(interactive)
(let ((num (prefix-numeric-value arg)))
(cond
((or (not arg) (equal num 0))
(setq oddmuse-minor (not oddmuse-minor)))
((> num 0) (set 'oddmuse-minor t))
((< num 0) (set 'oddmuse-minor nil)))
(message "Oddmuse Minor set to %S" oddmuse-minor)
oddmuse-minor))
(add-to-list 'minor-mode-alist
'(oddmuse-minor " [MINOR]"))
(defun oddmuse-format (args coding)
"Internal: Substitute oddmuse format flags according to `oddmuse-page-name',
`summary', `oddmuse-username',`oddmuse-password', `text'
Each ARGS is url-encoded with CODING."
(dolist (pair '(("%t" . oddmuse-page-name) ("%s" . summary)
("%u" . oddmuse-username) ("%m" . oddmuse-minor)
("%p" . oddmuse-password) ("%x" . text)))
(when (and (boundp (cdr pair)) (stringp (symbol-value (cdr pair))))
(setq args
(replace-regexp-in-string
(car pair)
(url-hexify-string
(encode-coding-string (symbol-value (cdr pair))
coding))
args t t))))
args)
(defun oddmuse-format-url (url args coding)
"Internal: Substitute oddmuse format flags and concatnate URL.
see: `oddmuse-format'"
(concat url "?" (oddmuse-format args coding)))
(defun oddmuse-read-wiki-and-pagename ()
"Read an wikiname and a pagename of `oddmuse-wikis' with completion."
(let ((wiki (completing-read "Wiki: " oddmuse-wikis nil t oddmuse-wiki)))
(list wiki (oddmuse-read-pagename wiki))))
(defun oddmuse-retrieve (url method buffer coding &optional data)
"Retrieve URL with METHOD, and put response content to BUFFER.
Content is decoded with CODING.
If DATA is non-nil, it is used to POST data."
(let* ((url-request-extra-headers
(and (string= method "POST")
'(("Content-type: application/x-www-form-urlencoded;"))))
(url-request-method method)
(url-request-data data))
(oddmuse-process-response (url-retrieve-synchronously url) buffer coding)))
(defun oddmuse-retrieve-to-string (url method coding &optional data)
"Return a string retrieved with URL.
see: `oddmuse-retrieve'"
(with-temp-buffer
(oddmuse-retrieve url method (current-buffer) coding data)
(buffer-string)))
(defun oddmuse-process-response (response-buffer buffer coding)
"Put response body from RESPONSE-BUFFER to BUFFER.
It is decoded with CODING."
(declare (special url-http-end-of-headers))
(when buffer
(with-current-buffer buffer
(insert
(with-current-buffer response-buffer
(set-buffer-multibyte t)
(goto-char (1+ url-http-end-of-headers))
(decode-coding-region
(point) (point-max)
(coding-system-change-eol-conversion coding 'dos))
(buffer-substring (point) (point-max))))
(goto-char (point-min))))
(kill-buffer response-buffer))
;;;###autoload
(defun oddmuse-edit (wiki pagename)
"Edit a page on a wiki.
WIKI is the name of the wiki as defined in `oddmuse-wikis',
PAGENAME is the pagename of the page you want to edit.
Use a prefix argument to force a reload of the page."
(interactive (oddmuse-read-wiki-and-pagename))
(make-directory (concat oddmuse-directory "/" wiki) t)
(let ((name (concat wiki ":" pagename)))
(if (and (get-buffer name)
(not current-prefix-arg))
(pop-to-buffer (get-buffer name))
(let* ((triplet (assoc wiki oddmuse-wikis))
(url (cadr triplet))
(oddmuse-page-name pagename)
(coding (caddr triplet))
(buf (find-file-noselect
(concat oddmuse-directory "/" wiki "/" pagename))))
(setq url (oddmuse-format-url url oddmuse-get coding))
(set-buffer buf)
(unless (equal name (buffer-name)) (rename-buffer name))
(erase-buffer)
(oddmuse-retrieve url "GET" buf coding)
(set-buffer-modified-p nil)
(pop-to-buffer buf)))
(oddmuse-mode)))
(defalias 'oddmuse-go 'oddmuse-edit)
(autoload 'word-at-point "thingatpt")
;;;###autoload
(defun oddmuse-follow (arg)
"Figure out what page we need to visit
and call `oddmuse-edit' on it."
(interactive "P")
(let ((pagename (if arg (oddmuse-read-pagename oddmuse-wiki)
(oddmuse-pagename-at-point))))
(oddmuse-edit (or oddmuse-wiki
(read-from-minibuffer "URL: "))
pagename)))
(defun oddmuse-current-free-link-contents ()
"Free link contents if the point is between [[ and ]]."
(save-excursion
(let* ((pos (point))
(start (search-backward "[[" nil t))
(end (search-forward "]]" nil t)))
(and start end (>= end pos)
(replace-regexp-in-string
" " "_"
(buffer-substring (+ start 2) (- end 2)))))))
(defun oddmuse-pagename-at-point ()
"Page name at point."
(let ((pagename (word-at-point)))
(cond ((oddmuse-current-free-link-contents))
((oddmuse-wikiname-p pagename)
pagename)
(t
(error "No link found at point")))))
(defun oddmuse-wikiname-p (pagename)
"Whether PAGENAME is WikiName or not."
(let (case-fold-search)
(string-match (concat "^" oddmuse-link-pattern "$") pagename)))
;; (oddmuse-wikiname-p "WikiName")
;; (oddmuse-wikiname-p "not-wikiname")
;; (oddmuse-wikiname-p "notWikiName")
(defun oddmuse-revision-check-prompt (url coding)
(with-temp-buffer
(oddmuse-retrieve url "GET" (current-buffer) coding)
(goto-char (point-min))
(let (list)
(while (re-search-forward oddmuse-revision-check-regexp nil t)
(push (match-string 0) list))
(concat
(mapconcat 'identity (last (nreverse list) 3) "\n")
"\nSave ? "))))
;;;###autoload
(defun oddmuse-post (summary)
"Post the current buffer to the current wiki.
The current wiki is taken from `oddmuse-wiki'."
(interactive "sSummary: ")
;; when using prefix or on a buffer that is not in oddmuse-mode
(when (or (not oddmuse-wiki) current-prefix-arg)
(set (make-local-variable 'oddmuse-wiki)
(completing-read "Wiki: " oddmuse-wikis nil t)))
(when (not oddmuse-page-name)
(set (make-local-variable 'oddmuse-page-name)
(read-from-minibuffer "Pagename: " (buffer-name))))
(let* ((triplet (assoc oddmuse-wiki oddmuse-wikis))
(url (cadr triplet))
(oddmuse-minor (if oddmuse-minor "on" "off"))
(coding (caddr triplet))
(check-url (oddmuse-format-url url oddmuse-revision-check coding)))
(when (y-or-n-p (oddmuse-revision-check-prompt check-url coding))
(let ((text (buffer-string)))
(and buffer-file-name (basic-save-buffer))
(oddmuse-retrieve url "POST" nil coding
(oddmuse-format oddmuse-post coding))
(message "Posted")))))
(defun oddmuse-make-completion-table (wiki)
"Create pagename completion table for WIKI. if available, return precomputed one."
(or (gethash wiki oddmuse-pages-hash)
(oddmuse-compute-pagename-completion-table wiki)))
(defun oddmuse-compute-pagename-completion-table (&optional wiki-arg)
"Really fetch the list of pagenames from WIKI.
This command is used to reflect new pages to `oddmuse-pages-hash'."
(interactive)
(let* ((wiki (or wiki-arg
(completing-read "Wiki: " oddmuse-wikis nil t oddmuse-wiki)))
(url (cadr (assoc wiki oddmuse-wikis)))
(coding (caddr (assoc wiki oddmuse-wikis)))
table)
(setq url (oddmuse-format-url url oddmuse-index-get coding))
(prog1
(setq table (mapcar 'list
(split-string
(oddmuse-retrieve-to-string url "GET" coding))))
(puthash wiki table oddmuse-pages-hash))))
(defun oddmuse-read-pagename (wiki)
"Read a pagename of WIKI with completion."
(completing-read "Pagename: " (oddmuse-make-completion-table wiki)))
;;;###autoload
(defun oddmuse-revert ()
"Revert this oddmuse page."
(interactive)
(let ((current-prefix-arg 4))
(oddmuse-edit oddmuse-wiki oddmuse-page-name)))
;;;###autoload
(defun oddmuse-insert-pagename (pagename)
"Insert a PAGENAME of current wiki with completion."
(interactive (list (oddmuse-read-pagename oddmuse-wiki)))
(insert pagename))
;;;###autoload
(defun emacswiki-post (&optional pagename summary)
"Post the current buffer to the EmacsWiki.
If this command is invoked interactively: with prefix argument, prompts pagename,
otherwise set pagename as basename of `buffer-file-name'.
This command is intended to post current EmacsLisp program easily."
(interactive)
(let* ((oddmuse-wiki "EmacsWiki")
(oddmuse-page-name (or pagename
(and (not current-prefix-arg)
buffer-file-name
(file-name-nondirectory buffer-file-name))
(oddmuse-read-pagename oddmuse-wiki)))
(summary (or summary (read-string "Summary: "))))
(oddmuse-post summary)))
(defun oddmuse-url (wiki pagename)
"Get the URL of oddmuse wiki."
(condition-case v
(concat (or (cadr (assoc wiki oddmuse-wikis)) (error)) "/" pagename)
(error nil)))
;; (oddmuse-url "EmacsWiki" "OddmuseMode")
;; (oddmuse-url "a" "OddmuseMode")
;;;###autoload
(defun oddmuse-browse-page (wiki pagename)
"Ask a WWW browser to load an oddmuse page.
WIKI is the name of the wiki as defined in `oddmuse-wikis',
PAGENAME is the pagename of the page you want to browse."
(interactive (oddmuse-read-wiki-and-pagename))
(browse-url (oddmuse-url wiki pagename)))
;;;###autoload
(defun oddmuse-browse-this-page ()
"Ask a WWW browser to load current oddmuse page."
(interactive)
(oddmuse-browse-page oddmuse-wiki oddmuse-page-name))
;;;###autoload
(defun oddmuse-kill-url ()
"Make the URL of current oddmuse page the latest kill in the kill ring."
(interactive)
(kill-new (oddmuse-url oddmuse-wiki oddmuse-page-name)))
(provide 'oddmuse)
;; How to save (DO NOT REMOVE!!)
;; (emacswiki-post "oddmuse.el")
;;; oddmuse.el ends here