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;;; ndict.el --- Lookup DICT client
;; Copyright (C) 1999 Lookup Development Team <lookup@ring.gr.jp>
;; Author: Keisuke Nishida <kei@psn.net>
;; Version: $Id: ndict.el,v 1.1.1.1 2001/11/28 18:32:36 kazuhiko Exp $
;; This file is part of Lookup.
;; Lookup 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.
;; Lookup 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 Lookup; if not, write to the Free Software Foundation,
;; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
;;; Code:
(require 'lookup)
(defconst ndict-version "1.0")
;;;
;:: Internal variables
;;;
(defvar ndict-current-agent nil)
(defvar ndict-current-dictionary nil)
(defvar ndict-current-process nil)
(defvar ndict-match-exact nil)
(defconst ndict-system-info-alist
'(;; dictd-1.4.x
(dictd
(methods . ((exact . "exact") (prefix . "prefix") (suffix . "suffix")
(substring . "substring") (regexp . "re"))))
;; minimam feature defined in RFC2229
(t
(methods . ((exact . "exact") (prefix . "prefix"))))))
(defconst ndict-process-coding-system
(if (featurep 'evi-mule) (evi-coding-system 'euc-jp-dos)))
;;;
;:: types
;;;
;; ndict agent:
;;
;; (ndict SERVER)
;;
;; SERVER - host name of DICT server
;;
;; [option]
;; :service - same as SERVICE above
;; :port - same as PORT above
;; :coding - same as `ndict-process-coding-system'
;; :auth - cons of username and authentication-string
;; :method-table - table to transfer a search method from Lookup internal
;; to DICT server defined
;;
;; [property]
;; ndict-process - DICT connection related with agent
(defalias 'ndict-agent-server 'lookup-agent-location)
(defun ndict-agent-service (agent)
(or (lookup-agent-option agent ':port)
(lookup-agent-option agent ':service)
"dict"))
(defun ndict-agent-coding (agent)
(or (lookup-agent-option agent ':coding)
ndict-process-coding-system))
(defun ndict-agent-auth (agent)
(lookup-agent-option agent ':auth))
(defun ndict-agent-method-table (agent)
(lookup-agent-option agent ':method-table))
(put 'ndict ':arranges '(lookup-arrange-default-headings))
(put 'ndict ':adjusts '(lookup-adjust-goto-min))
;; ndict dictionary:
;;
;; CODE - same as NAME below
;; NAME - given by server `SHOW DB' command
;; TITLE - given by server `SHOW DB' command
(defun ndict-make-dictionary (name title)
(lookup-new-dictionary ndict-current-agent name name title))
;; ndict entry:
;;
;; CODE - returned value of `MATCH' command
;; HEADING - given by server `MATCH' command
(defsubst ndict-make-entry (code heading)
(lookup-make-entry ndict-current-dictionary code heading))
;;;
;:: macros
;;;
(put 'ndict-with-agent 'lisp-indent-function 1)
(defmacro ndict-with-agent (agent &rest body)
(` (let ((ndict-current-agent (, agent))
(ndict-current-process (ndict-agent-process (, agent))))
(,@ body))))
(put 'ndict-with-dictionary 'lisp-indent-function 1)
(defmacro ndict-with-dictionary (dictionary &rest body)
(` (ndict-with-agent (lookup-dictionary-agent (, dictionary))
(let ((ndict-current-dictionary (, dictionary)))
(,@ body)))))
(defun ndict-agent-process (agent)
(let ((process (lookup-agent-get-property agent 'ndict-process)))
(unless (and process (eq (process-status process) 'open))
(if process (lookup-process-kill process))
(setq process (ndict-process-open (ndict-agent-server agent)
(ndict-agent-service agent)))
;; initial setup
(when (featurep 'evi-mule)
(let ((coding (ndict-agent-coding agent)))
(set-process-coding-system process coding coding)))
(let ((ndict-current-process process)
(auth (ndict-agent-auth agent)))
(ndict-process-require (concat "CLIENT ndict " ndict-version))
(when auth
(ndict-process-require (concat "AUTH" (car auth) (cdr auth)))))
(lookup-agent-put-property agent 'ndict-process process))
process))
(defun ndict-agent-kill-process (agent)
(let ((process (lookup-agent-get-property agent 'ndict-process)))
(when process
(if (eq (process-status process) 'open)
(process-send-string process "QUIT\n"))
(lookup-process-kill process))))
;;;
;:: Interface functions
;;;
(put 'ndict 'setup 'ndict-setup)
(defun ndict-setup (agent)
(ndict-with-agent agent
;; get server information
(let* ((server (ndict-process-require "SHOW SERVER"
(lambda (process)
(forward-line)
(buffer-substring (point) (progn (end-of-line)
(point))))))
(system (if (string-match "^dictd " server) 'dictd t))
(table (lookup-assq-ref ndict-system-info-alist system)))
;; set methods and method-table
(let ((methods (lookup-assq-ref table 'methods)))
(lookup-agent-set-default agent ':methods (mapcar 'car methods))
(lookup-agent-set-default agent ':method-table methods)))
;; get dictionary list
(ndict-process-require "SHOW DB"
(lambda (process)
(let (name title dicts)
(when (looking-at "110")
(forward-line)
(narrow-to-region (point) (re-search-forward "^\\.$"))
(while (re-search-backward "^\\([^ ]+\\) \\(.*\\)" nil t)
(setq name (match-string 1) title (read (match-string 2)))
(setq dicts (cons (ndict-make-dictionary name title) dicts)))
dicts))))))
(put 'ndict 'clear 'ndict-clear)
(defun ndict-clear (agent)
(ndict-agent-kill-process agent))
(put 'ndict 'search 'ndict-dictionary-search)
(defun ndict-dictionary-search (dictionary query)
(ndict-with-dictionary dictionary
(let* ((method (lookup-query-method query))
(string (lookup-query-string query))
(db (lookup-dictionary-code dictionary))
(table (ndict-agent-method-table ndict-current-agent))
(strategy (lookup-assq-ref table method))
(ndict-match-exact (if (eq method 'exact) (concat "^" string "$"))))
(when (or (not (fboundp 'find-charset-string))
(equal (find-charset-string string) '(ascii))
(equal (find-charset-string string) 'nil))
(ndict-process-require (format "MATCH %s %s '%s'" db strategy string)
(lambda (process)
(when (looking-at "152")
(forward-line)
(narrow-to-region (point) (re-search-forward "^\\.$"))
(let ((case-fold-search t) code heading entries)
(while (re-search-backward "^[^ ]+ \\(.*\\)" nil t)
(setq code (match-string 1) heading (read code))
(if (or (not ndict-match-exact)
(string-match ndict-match-exact heading))
(setq entries (cons (ndict-make-entry code heading)
entries))))
entries))))))))
(put 'ndict 'content 'ndict-dictionary-content)
(defun ndict-dictionary-content (dictionary entry)
(ndict-with-dictionary dictionary
(let ((db (lookup-dictionary-code dictionary))
(word (lookup-entry-code entry)))
(ndict-process-require (format "DEFINE %s %s" db word)
(lambda (process)
(when (looking-at "150")
(forward-line 2)
(buffer-substring (point) (progn (re-search-forward "^\\.$")
(match-beginning 0)))))))))
;;;
;:: ndict process
;;;
(defun ndict-process-open (server service)
(lookup-proceeding-message (format "connecting to %s..." server))
(let* ((buffer (lookup-open-process-buffer " *ndict*"))
(process (open-network-stream "ndict" buffer server service)))
(accept-process-output process)
(process-kill-without-query process)
process))
(put 'ndict-process-require 'lisp-indent-function 1)
(defun ndict-process-require (command &optional filter)
(lookup-process-require ndict-current-process (concat command "\n")
"^[245][0-8][0-9] .*\n" filter))
(provide 'ndict)
;;; ndict.el ends here
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