--- /dev/null
+;;; gnus-namazu.el --- Search mail with Namazu -*- coding: iso-2022-7bit; -*-
+
+;; Copyright (C) 2000, 2001, 2002, 2003, 2004
+;; TSUCHIYA Masatoshi <tsuchiya@namazu.org>
+
+;; Author: TSUCHIYA Masatoshi <tsuchiya@namazu.org>
+;; Keywords: mail searching namazu
+
+;; 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 3, 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, see <http://www.gnu.org/licenses/>.
+
+
+;;; Commentary:
+
+;; This file defines the command to search mails and persistent
+;; articles with Namazu and to browse its results with Gnus.
+;;
+;; Namazu is a full-text search engine intended for easy use. For
+;; more detail about Namazu, visit the following page:
+;;
+;; http://namazu.org/
+
+
+;;; Quick Start:
+
+;; If this module has already been installed, only four steps are
+;; required to search articles with this module.
+;;
+;; (1) Install Namazu.
+;;
+;; (2) Put this expression into your ~/.gnus.
+;;
+;; (gnus-namazu-insinuate)
+;;
+;; (3) Start Gnus and type M-x gnus-namazu-create-index RET to make
+;; index of articles.
+;;
+;; (4) In group buffer or in summary buffer, type C-c C-n query RET.
+
+
+;;; Install:
+
+;; Before installing this module, you must install Namazu.
+;;
+;; When you would like to byte-compile this module in Gnus, put this
+;; file into the lisp/ directory in the Gnus source tree and run `make
+;; install'. And then, put the following expression into your
+;; ~/.gnus.
+;;
+;; (gnus-namazu-insinuate)
+;;
+;; In order to make index of articles with Namazu before using this
+;; module, type M-x gnus-namazu-create-index RET. Otherwise, you can
+;; create index by yourself with the following commands:
+;;
+;; % mkdir ~/News/namazu
+;; % mknmz -a -h -O ~/News/namazu ~/Mail ~/News/cache
+;;
+;; The first command makes the directory for index files, and the
+;; second command generates index files of mails and persistent
+;; articles.
+;;
+;; In order to update indices for incoming articles, this module
+;; automatically runs mknmz, the indexer of Namazu, at an interval of
+;; 3 days; this period is set to `gnus-namazu-index-update-interval'.
+;;
+;; Indices will be updated when `gnus-namazu-search' is called. If
+;; you want to update indices everywhen Gnus is started, you can put
+;; the following expression to your ~/.gnus.
+;;
+;; (add-hook 'gnus-startup-hook 'gnus-namazu-update-all-indices)
+;;
+;; In order to control mknmz closely, disable the automatic updating
+;; feature and run mknmz by yourself. In this case, set nil to the
+;; above option.
+;;
+;; (setq gnus-namazu-index-update-interval nil)
+;;
+;; When your index is put into the directory other than the default
+;; one (~/News/namazu), it is necessary to set its place to
+;; `gnus-namazu-index-directories' as follows:
+;;
+;; (setq gnus-namazu-index-directories
+;; (list (expand-file-name "~/namazu")))
+
+
+;;; Code:
+
+(eval-when-compile (require 'cl))
+(require 'nnoo)
+(require 'nnheader)
+(require 'nnmail)
+(require 'gnus-sum)
+(require 'gmm-utils)
+
+;; To suppress byte-compile warning.
+(eval-when-compile
+ (defvar nnml-directory)
+ (defvar nnmh-directory))
+
+
+(defgroup gnus-namazu nil
+ "Search nnmh and nnml groups in Gnus with Namazu."
+ :group 'namazu
+ :group 'gnus
+ :prefix "gnus-namazu-")
+
+(defconst gnus-namazu-default-index-directory
+ (expand-file-name "namazu" gnus-directory)
+ "Default place of Namazu index files.")
+
+(defcustom gnus-namazu-index-directories
+ (list
+ (or (and (boundp 'gnus-namazu-index-directory)
+ (symbol-value 'gnus-namazu-index-directory))
+ (and (boundp 'nnir-namazu-index-directory)
+ (symbol-value 'nnir-namazu-index-directory))
+ gnus-namazu-default-index-directory))
+ "*Places of Namazu index files."
+ :type '(repeat directory)
+ :group 'gnus-namazu)
+
+(defcustom gnus-namazu-command
+ (or (and (boundp 'namazu-command)
+ (symbol-value 'namazu-command))
+ (and (boundp 'nnir-namazu-program)
+ (symbol-value 'nnir-namazu-program))
+ "namazu")
+ "*Name of the executable file of Namazu."
+ :type 'string
+ :group 'gnus-namazu)
+
+(defcustom gnus-namazu-command-prefix nil
+ "*Prefix commands to execute Namazu.
+If you put your index on a remote server, set this option as follows:
+
+ (setq gnus-namazu-command-prefix
+ '(\"ssh\" \"-x\" \"remote-server\"))
+
+This makes gnus-namazu execute \"ssh -x remote-server namazu ...\"
+instead of executing \"namazu\" directly."
+ :type '(repeat string)
+ :group 'gnus-namazu)
+
+(defcustom gnus-namazu-additional-arguments nil
+ "*Additional arguments of Namazu.
+The options `-q', `-a', and `-l' are always used, very few other
+options make any sense in this context."
+ :type '(repeat string)
+ :group 'gnus-namazu)
+
+(defcustom gnus-namazu-index-update-interval
+ 259200 ; 3 days == 259200 seconds.
+ "*Number of seconds between running the indexer of Namazu."
+ :type '(choice (const :tag "Never run the indexer" nil)
+ (integer :tag "Number of seconds"))
+ :group 'gnus-namazu)
+
+(defcustom gnus-namazu-make-index-command "mknmz"
+ "*Name of the executable file of the indexer of Namazu."
+ :type 'string
+ :group 'gnus-namazu)
+
+(defcustom gnus-namazu-make-index-arguments
+ (nconc
+ (list "--all" "--mailnews" "--deny=^.*[^0-9].*$")
+ (when (and (boundp 'current-language-environment)
+ (string= "Japanese"
+ (symbol-value 'current-language-environment)))
+ (list "--indexing-lang=ja")))
+ "*Arguments of the indexer of Namazu."
+ :type '(repeat string)
+ :group 'gnus-namazu)
+
+(defcustom gnus-namazu-field-keywords
+ '("date" "from" "newsgroups" "size" "subject" "summary" "to" "uri")
+ "*List of keywords to do field-search."
+ :type '(repeat string)
+ :group 'gnus-namazu)
+
+(defcustom gnus-namazu-coding-system
+ (if (memq system-type '(windows-nt OS/2 emx))
+ 'shift_jis
+ 'euc-japan)
+ "*Coding system for Namazu process."
+ :type 'coding-system
+ :group 'gnus-namazu)
+
+(defcustom gnus-namazu-need-path-normalization
+ (and (memq system-type '(windows-nt OS/2 emx)) t)
+ "*Non-nil means that outputs of namazu may contain drive letters."
+ :type 'boolean
+ :group 'gnus-namazu)
+
+(defcustom gnus-namazu-case-sensitive-filesystem
+ (not (eq system-type 'windows-nt))
+ "*Non-nil means that the using file system distinguishes cases of characters."
+ :type 'boolean
+ :group 'gnus-namazu)
+
+(defcustom gnus-namazu-query-highlight t
+ "Non-nil means that queried words is highlighted."
+ :type 'boolean
+ :group 'gnus-namazu)
+
+(defface gnus-namazu-query-highlight-face
+ '((((type tty pc) (class color))
+ (:background "magenta4" :foreground "cyan1"))
+ (((class color) (background light))
+ (:background "magenta4" :foreground "lightskyblue1"))
+ (((class color) (background dark))
+ (:background "palevioletred2" :foreground "brown4"))
+ (t (:inverse-video t)))
+ "Face used for namazu query matching words."
+ :group 'gnus-namazu)
+
+(defcustom gnus-namazu-remote-groups nil
+ "*Alist of regular expressions matching remote groups and their base paths.
+If you use an IMAP server and have a special index, set this option as
+follows:
+
+ (setq gnus-namazu-remote-groups
+ '((\"^nnimap\\\\+server:INBOX\\\\.\" . \"~/Maildir/.\")))
+
+This means that the group \"nnimap+server:INBOX.group\" is placed in
+\"~/Maildir/.group\"."
+ :group 'gnus-namazu
+ :type '(repeat
+ (cons (choice (regexp :tag "Regexp of group name")
+ (const :tag "Groups served by `gnus-select-method'" t))
+ (string :tag "Base path of groups")))
+ :set (lambda (symbol value)
+ (prog1 (set-default symbol value)
+ (when (featurep 'gnus-namazu)
+ (gnus-namazu/make-directory-table t)))))
+
+;;; Internal Variable:
+(defconst gnus-namazu/group-name-regexp "\\`nnvirtual:namazu-search\\?")
+
+;; Multibyte group name:
+(and
+ (fboundp 'gnus-group-decoded-name)
+ (let ((gnus-group-name-charset-group-alist
+ (list (cons gnus-namazu/group-name-regexp gnus-namazu-coding-system)))
+ (query (decode-coding-string (string 27 36 66 52 65 59 122 27 40 66)
+ 'iso-2022-7bit)))
+ (not (string-match query
+ (gnus-summary-buffer-name
+ (encode-coding-string
+ (concat "nnvirtual:namazu-search?query=" query)
+ gnus-namazu-coding-system)))))
+ (let (current-load-list)
+ (defadvice gnus-summary-buffer-name
+ (before gnus-namazu-summary-buffer-name activate compile)
+ "Advised by `gnus-namazu' to handle encoded group names."
+ (ad-set-arg 0 (gnus-group-decoded-name (ad-get-arg 0))))))
+
+(defmacro gnus-namazu/make-article (group number)
+ `(cons ,group ,number))
+(defmacro gnus-namazu/article-group (x) `(car ,x))
+(defmacro gnus-namazu/article-number (x) `(cdr ,x))
+
+(defsubst gnus-namazu/indexed-servers ()
+ "Choice appropriate servers from opened ones, and return thier list."
+ (append
+ (gnus-servers-using-backend 'nnml)
+ (gnus-servers-using-backend 'nnmh)))
+
+(defsubst gnus-namazu/default-index-directory ()
+ (if (member gnus-namazu-default-index-directory
+ gnus-namazu-index-directories)
+ gnus-namazu-default-index-directory
+ (car gnus-namazu-index-directories)))
+
+(defun gnus-namazu/setup ()
+ (and (boundp 'gnus-group-name-charset-group-alist)
+ (not (member (cons gnus-namazu/group-name-regexp
+ gnus-namazu-coding-system)
+ gnus-group-name-charset-group-alist))
+ (let ((pair (assoc gnus-namazu/group-name-regexp
+ gnus-group-name-charset-group-alist)))
+ (if pair
+ (setcdr pair gnus-namazu-coding-system)
+ (push (cons gnus-namazu/group-name-regexp
+ gnus-namazu-coding-system)
+ gnus-group-name-charset-group-alist))))
+ (unless gnus-namazu-command-prefix
+ (gnus-namazu-update-all-indices)))
+
+(defun gnus-namazu/server-directory (server)
+ "Return the top directory of the server SERVER."
+ (and (memq (car server) '(nnml nnmh))
+ (nnoo-change-server (car server) (nth 1 server) (nthcdr 2 server))
+ (file-name-as-directory
+ (expand-file-name (if (eq 'nnml (car server))
+ nnml-directory
+ nnmh-directory)))))
+
+;;; Functions to call Namazu.
+(defsubst gnus-namazu/normalize-results ()
+ "Normalize file names returned by Namazu in this current buffer."
+ (goto-char (point-min))
+ (while (not (eobp))
+ (when (looking-at "file://")
+ (delete-region (point) (match-end 0)))
+ (when (if gnus-namazu-need-path-normalization
+ (or (not (looking-at "/\\(.\\)|/"))
+ (replace-match "\\1:/"))
+ (eq ?~ (char-after (point))))
+ (insert (expand-file-name
+ (buffer-substring (point-at-bol) (point-at-eol))))
+ (delete-region (point) (point-at-eol)))
+ (forward-line 1)))
+
+(defsubst gnus-namazu/call-namazu (query)
+ (let ((coding-system-for-read gnus-namazu-coding-system)
+ (coding-system-for-write gnus-namazu-coding-system)
+ (default-process-coding-system
+ (cons gnus-namazu-coding-system gnus-namazu-coding-system))
+ program-coding-system-alist
+ (file-name-coding-system gnus-namazu-coding-system)
+ (commands
+ (append gnus-namazu-command-prefix
+ (list gnus-namazu-command
+ "-q" ; don't be verbose
+ "-a" ; show all matches
+ "-l") ; use list format
+ gnus-namazu-additional-arguments
+ (list (if gnus-namazu-command-prefix
+ (concat "'" query "'")
+ query))
+ gnus-namazu-index-directories)))
+ (apply 'call-process (car commands) nil t nil (cdr commands))))
+
+(defvar gnus-namazu/directory-table nil)
+(defun gnus-namazu/make-directory-table (&optional force)
+ (interactive (list t))
+ (unless (and (not force)
+ gnus-namazu/directory-table
+ (eq gnus-namazu-case-sensitive-filesystem
+ (car gnus-namazu/directory-table)))
+ (let ((table (make-vector (length gnus-newsrc-hashtb) 0))
+ cache agent alist dir method)
+ (mapatoms
+ (lambda (group)
+ (unless (gnus-ephemeral-group-p (setq group (symbol-name group)))
+ (when (file-directory-p
+ (setq dir (file-name-as-directory
+ (gnus-cache-file-name group ""))))
+ (push (cons dir group) cache))
+ (when (file-directory-p
+ (setq dir (gnus-agent-group-pathname group)))
+ (push (cons dir group) agent))
+ (when (memq (car (setq method (gnus-find-method-for-group group)))
+ '(nnml nnmh))
+ (when (file-directory-p
+ (setq dir (let (file-name-handler-alist)
+ (nnmail-group-pathname
+ (gnus-group-short-name group)
+ (gnus-namazu/server-directory method)))))
+ (push (cons dir group) alist)))
+ (dolist (pair gnus-namazu-remote-groups)
+ (when (setq dir
+ (or (and (eq t (car pair))
+ (gnus-method-equal method gnus-select-method)
+ group)
+ (and (stringp (car pair))
+ (string-match (car pair) group)
+ (substring group (match-end 0)))))
+ (setq dir (let (file-name-handler-alist)
+ (nnmail-group-pathname dir "/")))
+ (push (cons (concat (cdr pair)
+ ;; nnmail-group-pathname() on some
+ ;; systems returns pathnames which
+ ;; have drive letters at their top.
+ (substring dir (1+ (string-match "/" dir))))
+ group)
+ alist)))))
+ gnus-newsrc-hashtb)
+ (dolist (pair (nconc agent cache alist))
+ (set (intern (if gnus-namazu-case-sensitive-filesystem
+ (car pair)
+ (downcase (car pair)))
+ table)
+ (cdr pair)))
+ (setq gnus-namazu/directory-table
+ (cons gnus-namazu-case-sensitive-filesystem table)))))
+
+(defun gnus-namazu/search (groups query)
+ (gnus-namazu/make-directory-table)
+ (with-temp-buffer
+ (let ((exit-status (gnus-namazu/call-namazu query)))
+ (unless (zerop exit-status)
+ (error "Namazu finished abnormally: %d" exit-status)))
+ (gnus-namazu/normalize-results)
+ (goto-char (point-min))
+ (let (articles group)
+ (while (not (eobp))
+ (setq group (buffer-substring-no-properties
+ (point)
+ (progn
+ (end-of-line)
+ ;; NOTE: Only numeric characters are permitted
+ ;; as file names of articles.
+ (skip-chars-backward "0-9")
+ (point))))
+ (and (setq group
+ (symbol-value
+ (intern-soft (if gnus-namazu-case-sensitive-filesystem
+ group
+ (downcase group))
+ (cdr gnus-namazu/directory-table))))
+ (or (not groups)
+ (member group groups))
+ (push (gnus-namazu/make-article
+ group
+ (string-to-number
+ (buffer-substring-no-properties (point)
+ (point-at-eol))))
+ articles))
+ (forward-line 1))
+ (nreverse articles))))
+
+;;; User Interface:
+(defun gnus-namazu/get-target-groups ()
+ (cond
+ ((eq major-mode 'gnus-group-mode)
+ ;; In Group buffer.
+ (cond
+ (current-prefix-arg
+ (gnus-group-process-prefix current-prefix-arg))
+ (gnus-group-marked
+ (prog1 gnus-group-marked (gnus-group-unmark-all-groups)))))
+ ((eq major-mode 'gnus-summary-mode)
+ ;; In Summary buffer.
+ (if current-prefix-arg
+ (list (gnus-read-group "Group: "))
+ (if (and
+ (gnus-ephemeral-group-p gnus-newsgroup-name)
+ (string-match gnus-namazu/group-name-regexp gnus-newsgroup-name))
+ (cadr (assq 'gnus-namazu-target-groups
+ (gnus-info-method (gnus-get-info gnus-newsgroup-name))))
+ (list gnus-newsgroup-name))))))
+
+(defun gnus-namazu/get-current-query ()
+ (and (eq major-mode 'gnus-summary-mode)
+ (gnus-ephemeral-group-p gnus-newsgroup-name)
+ (string-match gnus-namazu/group-name-regexp gnus-newsgroup-name)
+ (cadr (assq 'gnus-namazu-current-query
+ (gnus-info-method (gnus-get-info gnus-newsgroup-name))))))
+
+(defvar gnus-namazu/read-query-original-buffer nil)
+(defvar gnus-namazu/read-query-prompt nil)
+(defvar gnus-namazu/read-query-history nil)
+
+(defun gnus-namazu/get-current-subject ()
+ (and gnus-namazu/read-query-original-buffer
+ (bufferp gnus-namazu/read-query-original-buffer)
+ (with-current-buffer gnus-namazu/read-query-original-buffer
+ (when (eq major-mode 'gnus-summary-mode)
+ (let ((s (gnus-summary-article-subject)))
+ ;; Remove typically prefixes of mailing lists.
+ (when (string-match
+ "^\\(\\[[^]]*[0-9]+\\]\\|([^)]*[0-9]+)\\)\\s-*" s)
+ (setq s (substring s (match-end 0))))
+ (when (string-match
+ "^\\(Re\\(\\^?\\([0-9]+\\|\\[[0-9]+\\]\\)\\)?:\\s-*\\)+" s)
+ (setq s (substring s (match-end 0))))
+ (when (string-match "\\s-*(\\(re\\|was\\)\\b" s)
+ (setq s (substring s 0 (match-beginning 0))))
+ s)))))
+
+(defun gnus-namazu/get-current-from ()
+ (and gnus-namazu/read-query-original-buffer
+ (bufferp gnus-namazu/read-query-original-buffer)
+ (with-current-buffer gnus-namazu/read-query-original-buffer
+ (when (eq major-mode 'gnus-summary-mode)
+ (cadr (mail-extract-address-components
+ (mail-header-from
+ (gnus-summary-article-header))))))))
+
+(defun gnus-namazu/get-current-to ()
+ (and gnus-namazu/read-query-original-buffer
+ (bufferp gnus-namazu/read-query-original-buffer)
+ (with-current-buffer gnus-namazu/read-query-original-buffer
+ (when (eq major-mode 'gnus-summary-mode)
+ (cadr (mail-extract-address-components
+ (cdr (assq 'To (mail-header-extra
+ (gnus-summary-article-header))))))))))
+
+(defmacro gnus-namazu/minibuffer-prompt-end ()
+ (if (fboundp 'minibuffer-prompt-end)
+ '(minibuffer-prompt-end)
+ '(point-min)))
+
+(defun gnus-namazu/message (string &rest arguments)
+ (let* ((s1 (concat
+ gnus-namazu/read-query-prompt
+ (buffer-substring (gnus-namazu/minibuffer-prompt-end)
+ (point-max))))
+ (s2 (apply (function format) string arguments))
+ (w (- (window-width)
+ (string-width s1)
+ (string-width s2)
+ 1)))
+ (message (if (>= w 0)
+ (concat s1 (make-string w ?\ ) s2)
+ s2))
+ (if (sit-for 0.3) (message s1))
+ s2))
+
+(defun gnus-namazu/complete-query ()
+ (interactive)
+ (let ((pos (point)))
+ (cond
+ ((and (re-search-backward "\\+\\([-a-z]*\\)" nil t)
+ (= pos (match-end 0)))
+ (let* ((partial (match-string 1))
+ (completions
+ (all-completions
+ partial
+ (mapcar 'list gnus-namazu-field-keywords))))
+ (cond
+ ((null completions)
+ (gnus-namazu/message "No completions of %s" partial))
+ ((= 1 (length completions))
+ (goto-char (match-beginning 1))
+ (delete-region (match-beginning 1) (match-end 1))
+ (insert (car completions) ":")
+ (setq pos (point))
+ (gnus-namazu/message "Completed"))
+ (t
+ (let ((x (try-completion partial (mapcar 'list completions))))
+ (if (string= x partial)
+ (if (and (eq last-command
+ 'gnus-namazu/field-keyword-completion)
+ completion-auto-help)
+ (with-output-to-temp-buffer "*Completions*"
+ (display-completion-list completions))
+ (gnus-namazu/message "Sole completion"))
+ (goto-char (match-beginning 1))
+ (delete-region (match-beginning 1) (match-end 1))
+ (insert x)
+ (setq pos (point))))))))
+ ((and (looking-at "\\+subject:")
+ (= pos (match-end 0)))
+ (let ((s (gnus-namazu/get-current-subject)))
+ (when s
+ (goto-char pos)
+ (insert "\"" s "\"")
+ (setq pos (point)))))
+ ((and (looking-at "\\+from:")
+ (= pos (match-end 0)))
+ (let ((f (gnus-namazu/get-current-from)))
+ (when f
+ (goto-char pos)
+ (insert "\"" f "\"")
+ (setq pos (point)))))
+ ((and (looking-at "\\+to:")
+ (= pos (match-end 0)))
+ (let ((to (gnus-namazu/get-current-to)))
+ (when to
+ (goto-char pos)
+ (insert "\"" to "\"")
+ (setq pos (point))))))
+ (goto-char pos)))
+
+(defvar gnus-namazu/read-query-map
+ (let ((keymap (copy-keymap minibuffer-local-map)))
+ (define-key keymap "\t" 'gnus-namazu/complete-query)
+ keymap))
+
+(defun gnus-namazu/read-query (prompt &optional initial)
+ (let ((gnus-namazu/read-query-original-buffer (current-buffer))
+ (gnus-namazu/read-query-prompt prompt))
+ (unless initial
+ (when (setq initial (gnus-namazu/get-current-query))
+ (setq initial (cons initial 0))))
+ (read-from-minibuffer prompt initial gnus-namazu/read-query-map nil
+ 'gnus-namazu/read-query-history)))
+
+(defun gnus-namazu/highlight-words (query)
+ (with-temp-buffer
+ (insert " " query)
+ ;; Remove tokens for NOT search
+ (goto-char (point-min))
+ (while (re-search-forward "[\e$B!!\e(B \t\r\f\n]+not[\e$B!!\e(B \t\r\f\n]+\
+\\([^\e$B!!\e(B \t\r\f\n\"{(/]+\\|\"[^\"]+\"\\|{[^}]+}\\|([^)]+)\\|/[^/]+/\\)+" nil t)
+ (delete-region (match-beginning 0) (match-end 0)))
+ ;; Remove tokens for Field search
+ (goto-char (point-min))
+ (while (re-search-forward "[\e$B!!\e(B \t\r\f\n]+\\+[^\e$B!!\e(B \t\r\f\n:]+:\
+\\([^\e$B!!\e(B \t\r\f\n\"{(/]+\\|\"[^\"]+\"\\|{[^}]+}\\|([^)]+)\\|/[^/]+/\\)+" nil t)
+ (delete-region (match-beginning 0) (match-end 0)))
+ ;; Remove tokens for Regexp search
+ (goto-char (point-min))
+ (while (re-search-forward "/[^/]+/" nil t)
+ (delete-region (match-beginning 0) (match-end 0)))
+ ;; Remove brackets, double quote, asterisk and operators
+ (goto-char (point-min))
+ (while (re-search-forward "\\([(){}\"*]\\|\\b\\(and\\|or\\)\\b\\)" nil t)
+ (delete-region (match-beginning 0) (match-end 0)))
+ ;; Collect all keywords
+ (setq query nil)
+ (goto-char (point-min))
+ (while (re-search-forward "[^\e$B!!\e(B \t\r\f\n]+" nil t)
+ (push (match-string 0) query))
+ (when query
+ (let (en ja)
+ (dolist (q query)
+ (if (string-match "\\cj" q)
+ (push q ja)
+ (push q en)))
+ (append
+ (when en
+ (list (list (concat "\\b\\(" (regexp-opt en) "\\)\\b")
+ 0 0 'gnus-namazu-query-highlight-face)))
+ (when ja
+ (list (list (regexp-opt ja)
+ 0 0 'gnus-namazu-query-highlight-face))))))))
+
+(defun gnus-namazu/truncate-article-list (articles)
+ (let ((hit (length articles)))
+ (when (and gnus-large-newsgroup
+ (> hit gnus-large-newsgroup))
+ (let* ((cursor-in-echo-area nil)
+ (input (read-from-minibuffer
+ (format "\
+Too many articles were retrieved. How many articles (max %d): "
+ hit)
+ (cons (number-to-string gnus-large-newsgroup) 0))))
+ (unless (string-match "\\`[ \t]*\\'" input)
+ (setcdr (nthcdr (min (1- (string-to-number input)) hit) articles)
+ nil)))))
+ articles)
+
+;;;###autoload
+(defun gnus-namazu-search (groups query)
+ "Search QUERY through GROUPS with Namazu,
+and make a virtual group contains its results."
+ (interactive
+ (list
+ (gnus-namazu/get-target-groups)
+ (gnus-namazu/read-query "Enter query: ")))
+ (gnus-namazu/setup)
+ (let ((articles (gnus-namazu/search groups query)))
+ (if articles
+ (let ((real-groups groups)
+ (vgroup
+ (apply (function format)
+ "nnvirtual:namazu-search?query=%s&groups=%s&id=%d%d%d"
+ query
+ (if groups (mapconcat 'identity groups ",") "ALL")
+ (current-time))))
+ (gnus-namazu/truncate-article-list articles)
+ (unless real-groups
+ (dolist (a articles)
+ (add-to-list 'real-groups (gnus-namazu/article-group a))))
+ ;; Generate virtual group which includes all results.
+ (when (fboundp 'gnus-group-decoded-name)
+ (setq vgroup
+ (encode-coding-string vgroup gnus-namazu-coding-system)))
+ (setq vgroup
+ (gnus-group-read-ephemeral-group
+ vgroup
+ `(nnvirtual ,vgroup
+ (nnvirtual-component-groups ,real-groups)
+ (gnus-namazu-target-groups ,groups)
+ (gnus-namazu-current-query ,query))
+ t (cons (current-buffer) (current-window-configuration)) t))
+ (when gnus-namazu-query-highlight
+ (gnus-group-set-parameter vgroup 'highlight-words
+ (gnus-namazu/highlight-words query)))
+ ;; Generate new summary buffer which contains search results.
+ (gnus-group-read-group
+ t t vgroup
+ (sort (delq nil ;; Ad-hoc fix, to avoid wrong-type-argument error.
+ (mapcar
+ (lambda (a)
+ (nnvirtual-reverse-map-article
+ (gnus-namazu/article-group a)
+ (gnus-namazu/article-number a)))
+ articles))
+ '<)))
+ (message "No entry."))))
+
+(defmacro gnus-namazu/lock-file-name (&optional directory)
+ `(expand-file-name "NMZ.lock2" ,directory))
+
+(defmacro gnus-namazu/status-file-name (&optional directory)
+ `(expand-file-name "NMZ.status" ,directory))
+
+(defmacro gnus-namazu/index-file-name (&optional directory)
+ `(expand-file-name "NMZ.i" ,directory))
+
+(defun gnus-namazu/mknmz-cleanup (directory)
+ (let ((lockfile (gnus-namazu/lock-file-name directory)))
+ (when (file-exists-p lockfile)
+ (delete-file lockfile)
+ (dolist (tmpfile (directory-files directory t "\\`NMZ\\..*\\.tmp\\'" t))
+ (delete-file tmpfile)))))
+
+;;;###autoload
+(defun gnus-namazu-create-index (directory &optional target-directories force)
+ "Create index under DIRECTORY."
+ (interactive
+ (list
+ (if (and current-prefix-arg (> (length gnus-namazu-index-directories) 1))
+ (completing-read "Directory: "
+ (mapcar 'list gnus-namazu-index-directories) nil t)
+ (gnus-namazu/default-index-directory))
+ nil t))
+ (setq directory (file-name-as-directory (expand-file-name directory)))
+ (unless target-directories
+ (setq target-directories
+ (delq nil
+ (mapcar (lambda (dir)
+ (when (file-directory-p dir) dir))
+ (append
+ (mapcar 'gnus-namazu/server-directory
+ (gnus-namazu/indexed-servers))
+ (list
+ (expand-file-name gnus-cache-directory)
+ (expand-file-name gnus-agent-directory)))))))
+ (if (file-exists-p (gnus-namazu/lock-file-name directory))
+ (when force
+ (error "Found lock file: %s" (gnus-namazu/lock-file-name directory)))
+ (with-current-buffer
+ (get-buffer-create (concat " *mknmz*" directory))
+ (erase-buffer)
+ (unless (file-directory-p directory)
+ (make-directory directory t))
+ (setq default-directory directory)
+ (let ((args (append gnus-namazu-make-index-arguments
+ target-directories)))
+ (insert "% " gnus-namazu-make-index-command " "
+ (mapconcat 'identity args " ") "\n")
+ (goto-char (point-max))
+ (when force
+ (pop-to-buffer (current-buffer)))
+ (message "Make index at %s..." directory)
+ (unwind-protect
+ (apply 'call-process gnus-namazu-make-index-command nil t t args)
+ (gnus-namazu/mknmz-cleanup directory))
+ (message "Make index at %s...done" directory)
+ (unless force
+ (kill-buffer (current-buffer)))))
+ (gnus-namazu/make-directory-table t)))
+
+(defun gnus-namazu/lapse-seconds (start end)
+ "Return lapse seconds from START to END.
+START and END are lists which represent time in Emacs-style."
+ (+ (* (- (car end) (car start)) 65536)
+ (cadr end)
+ (- (cadr start))))
+
+(defun gnus-namazu/index-old-p (directory)
+ "Return non-nil value when the index under the DIRECTORY is older
+than the period that is set to `gnus-namazu-index-update-interval'"
+ (let ((file (gnus-namazu/index-file-name directory)))
+ (or (not (file-exists-p file))
+ (and (integerp gnus-namazu-index-update-interval)
+ (>= (gnus-namazu/lapse-seconds
+ (nth 5 (file-attributes file))
+ (current-time))
+ gnus-namazu-index-update-interval)))))
+
+(defvar gnus-namazu/update-directories nil)
+(defvar gnus-namazu/update-process nil)
+
+(defun gnus-namazu/update-p (directory &optional force)
+ "Return the DIRECTORY when the index undef the DIRECTORY should be updated."
+ (setq directory (file-name-as-directory (expand-file-name directory)))
+ (gmm-labels ((error-message (format &rest args)
+ (apply (if force 'error 'message) format args)
+ nil))
+ (if gnus-namazu/update-process
+ (error-message "%s" "Can not run two update processes simultaneously")
+ (and (or force
+ (gnus-namazu/index-old-p directory))
+ (let ((status-file (gnus-namazu/status-file-name directory)))
+ (or (file-exists-p status-file)
+ (error-message "Can not find status file: %s" status-file)))
+ (let ((lock-file (gnus-namazu/lock-file-name directory)))
+ (or (not (file-exists-p lock-file))
+ (error-message "Found lock file: %s" lock-file)))
+ directory))))
+
+;;;###autoload
+(defun gnus-namazu-update-index (directory &optional force)
+ "Update the index under the DIRECTORY."
+ (interactive
+ (list
+ (if (and current-prefix-arg (> (length gnus-namazu-index-directories) 1))
+ (completing-read "Directory: "
+ (mapcar 'list gnus-namazu-index-directories) nil t)
+ (gnus-namazu/default-index-directory))
+ t))
+ (when (setq directory (gnus-namazu/update-p directory force))
+ (with-current-buffer (get-buffer-create (concat " *mknmz*" directory))
+ (buffer-disable-undo)
+ (erase-buffer)
+ (unless (file-directory-p directory)
+ (make-directory directory t))
+ (setq default-directory directory)
+ (let ((proc (start-process gnus-namazu-make-index-command
+ (current-buffer)
+ gnus-namazu-make-index-command
+ (format "--update=%s" directory))))
+ (if (processp proc)
+ (prog1 (setq gnus-namazu/update-process proc)
+ (process-kill-without-query proc)
+ (set-process-sentinel proc 'gnus-namazu/update-sentinel)
+ (add-hook 'kill-emacs-hook 'gnus-namazu-stop-update)
+ (message "Update index at %s..." directory))
+ (goto-char (point-min))
+ (if (re-search-forward "^ERROR:.*$" nil t)
+ (progn
+ (pop-to-buffer (current-buffer))
+ (funcall (if force 'error 'message)
+ "Update index at %s...%s" directory (match-string 0)))
+ (kill-buffer (current-buffer))
+ (funcall (if force 'error 'message)
+ "Can not start %s" gnus-namazu-make-index-command))
+ nil)))))
+
+;;;###autoload
+(defun gnus-namazu-update-all-indices (&optional force)
+ "Update all indices which is set to `gnus-namazu-index-directories'."
+ (interactive (list t))
+ (gnus-namazu-update-indices gnus-namazu-index-directories force))
+
+(defun gnus-namazu-update-indices (&optional directories force)
+ (when (setq directories
+ (delq nil (mapcar (lambda (d)
+ (gnus-namazu/update-p d force))
+ directories)))
+ (setq gnus-namazu/update-directories (cons force (cdr directories)))
+ (gnus-namazu-update-index (car directories) force)))
+
+(defun gnus-namazu/update-sentinel (process event)
+ (let ((buffer (process-buffer process)))
+ (when (buffer-name buffer)
+ (with-current-buffer buffer
+ (gnus-namazu/mknmz-cleanup default-directory)
+ (goto-char (point-min))
+ (cond
+ ((re-search-forward "^ERROR:.*$" nil t)
+ (pop-to-buffer (current-buffer))
+ (message "Update index at %s...%s"
+ default-directory (match-string 0))
+ (setq gnus-namazu/update-directories nil))
+ ((and (eq 'exit (process-status process))
+ (zerop (process-exit-status process)))
+ (message "Update index at %s...done" default-directory)
+ (unless (or debug-on-error debug-on-quit)
+ (kill-buffer buffer)))))))
+ (setq gnus-namazu/update-process nil)
+ (unless (gnus-namazu-update-indices (cdr gnus-namazu/update-directories)
+ (car gnus-namazu/update-directories))
+ (gnus-namazu/make-directory-table t)))
+
+;;;###autoload
+(defun gnus-namazu-stop-update ()
+ "Stop the running indexer of Namazu."
+ (interactive)
+ (setq gnus-namazu/update-directories nil)
+ (and gnus-namazu/update-process
+ (processp gnus-namazu/update-process)
+ (kill-process gnus-namazu/update-process)))
+
+(let (current-load-list)
+ (defadvice gnus-offer-save-summaries
+ (before gnus-namazu-kill-summary-buffers activate compile)
+ "Advised by `gnus-namazu'.
+In order to avoid annoying questions, kill summary buffers which
+generated by `gnus-namazu' itself before `gnus-offer-save-summaries'
+is called."
+ (let ((buffers (buffer-list)))
+ (while buffers
+ (when (with-current-buffer (car buffers)
+ (and (eq major-mode 'gnus-summary-mode)
+ (gnus-ephemeral-group-p gnus-newsgroup-name)
+ (string-match gnus-namazu/group-name-regexp
+ gnus-newsgroup-name)))
+ (kill-buffer (car buffers)))
+ (setq buffers (cdr buffers))))))
+
+;;;###autoload
+(defun gnus-namazu-insinuate ()
+ (add-hook
+ 'gnus-group-mode-hook
+ (lambda ()
+ (define-key gnus-group-mode-map "\C-c\C-n" 'gnus-namazu-search)))
+ (add-hook
+ 'gnus-summary-mode-hook
+ (lambda ()
+ (define-key gnus-summary-mode-map "\C-c\C-n" 'gnus-namazu-search))))
+
+(provide 'gnus-namazu)
+
+;; gnus-namazu.el ends here.
projects / packages / blobdiff