eudc / eudc-bbdb.el

;;; eudc-bbdb.el --- Emacs Unified Directory Client - BBDB Backend

;; Copyright (C) 1998 Free Software Foundation, Inc.

;; Author: Oscar Figueiredo <>
;; Maintainer: Oscar Figueiredo <>
;; Created: Feb 1998
;; Version: $Revision$
;; Keywords: help

;; This file is part of XEmacs

;; XEmacs 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, or (at your option)
;; any later version.

;; XEmacs is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with XEmacs; see the file COPYING.  If not, write to 
;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Commentary:
;;    This library provides an interface to use BBDB as a backend of 
;;    the Emacs Unified Directory Client.

;;; Installation:
;;    Install EUDC first. See EUDC documentation.

;;    This library runs under XEmacs 20 and under Emacs 19.34 and above

;;; Usage:

;;; Code:

(require 'eudc)
(require 'bbdb)
(require 'bbdb-com)

;;{{{      Internal cooking

;; I don't like this but mapcar does not accept a parameter to the function and
;; I don't want to use mapcar*
(defvar eudc-bbdb-current-query nil)
(defvar eudc-bbdb-current-return-attributes nil)

(defvar eudc-bbdb-attributes-translation-alist
  '((name . lastname)
    (email . net)
    (phone . phones))
  "Alist mapping EUDC attribute names to BBDB names.")

(eudc-protocol-set 'eudc-query-function 'eudc-bbdb-query-internal 'bbdb)
(eudc-protocol-set 'eudc-list-attributes-function nil 'bbdb)
(eudc-protocol-set 'eudc-protocol-attributes-translation-alist 
		   'eudc-bbdb-attributes-translation-alist 'bbdb)
(eudc-protocol-set 'eudc-bbdb-conversion-alist nil 'bbdb)
(eudc-protocol-set 'eudc-protocol-has-default-query-attributes nil 'bbdb)

(defun eudc-bbdb-format-query (query)
  "Format a EUDC query alist into a list suitable to `bbdb-search'."
  (let* ((firstname (cdr (assq 'firstname query)))
	 (lastname (cdr (assq 'lastname query)))
	 (name (or (and firstname lastname
			(concat firstname " " lastname))
	(company (cdr (assq 'company query)))
	(net (cdr (assq 'net query)))
	(notes (cdr (assq 'notes query)))
	(phone (cdr (assq 'phone query))))
    (list name company net notes phone)))

(defun eudc-bbdb-filter-non-matching-record (record)
  "Return RECORD if it matches `eudc-bbdb-current-query', nil otherwise."
  (catch 'unmatch
	(lambda (condition)
	  (let ((attr (car condition))
		(val (cdr condition)))
	    (or (and (memq attr '(firstname lastname aka company phones addresses net))
		     (equal (downcase
			     (eval (list (intern (concat "bbdb-record-" (symbol-name attr)))
			    (downcase val)))
		(throw 'unmatch nil)))))

(defun eudc-bbdb-extract-phones (record)
  (mapcar (function
	   (lambda (phone)
	     (if eudc-bbdb-use-locations-as-attribute-names
		 (cons (intern (bbdb-phone-location phone))
		       (bbdb-phone-string phone))
	       (cons 'phones (format "%s: %s" 
				     (bbdb-phone-location phone)
				     (bbdb-phone-string phone))))))
	  (bbdb-record-phones record)))

(defun eudc-bbdb-extract-addresses (record)
  (let (s c val)
    (mapcar (function
	     (lambda (address)
	       (setq val (concat (unless (= 0 (length (setq s (bbdb-address-street1 address))))
				   (concat s "\n"))
				 (unless (= 0 (length (setq s (bbdb-address-street2 address))))
				   (concat s "\n"))
				 (unless (= 0 (length (setq s (bbdb-address-street3 address))))
				   (concat s "\n"))
				   (setq c (bbdb-address-city address))
				   (setq s (bbdb-address-state address))
				   (if (and (> (length c) 0) (> (length s) 0))
				       (concat c ", " s " ")
				     (concat c " ")))
				 (bbdb-address-zip-string address)))
	       (if eudc-bbdb-use-locations-as-attribute-names
		   (cons (intern (bbdb-address-location address)) val)
		 (cons 'addresses (concat (bbdb-address-location address) "\n" val)))))
	    (bbdb-record-addresses record))))

(defun eudc-bbdb-format-record-as-result (record)
  "Format the BBDB RECORD as a EUDC query result record.
The record is filtered according to `eudc-bbdb-current-return-attributes'"
  (let ((attrs (or eudc-bbdb-current-return-attributes
		   '(firstname lastname aka company phones addresses net notes)))
    (while (prog1 
	       (setq attr (car attrs))
	     (setq attrs (cdr attrs)))
       ((eq attr 'phones)
	(setq val (eudc-bbdb-extract-phones record)))
       ((eq attr 'addresses)
	(setq val (eudc-bbdb-extract-addresses record)))
       ((memq attr '(firstname lastname aka company net notes))
	(setq val (eval 
		   (list (intern 
			  (concat "bbdb-record-" 
				  (symbol-name attr)))
	(setq val "Unknown BBDB attribute")))
      (if val
	 ((memq attr '(phones addresses))
	  (setq eudc-rec (append val eudc-rec)))
	 ((and (listp val)
	  (= 1 (length val)))
	  (setq eudc-rec (cons (cons attr (car val)) eudc-rec)))
	 ((> (length val) 0)
	  (setq eudc-rec (cons (cons attr val) eudc-rec)))
	  (error "Unexpected attribute value")))))
    (nreverse eudc-rec)))

(defun eudc-bbdb-query-internal (query &optional return-attrs)
  "Query BBDB  with QUERY.
QUERY is a list of cons cells (ATTR . VALUE) where ATTRs should be valid 
BBDB attribute names.  
RETURN-ATTRS is a list of attributes to return, defaulting to 

  (let ((eudc-bbdb-current-query query)
	(eudc-bbdb-current-return-attributes return-attrs)
	(query-attrs (eudc-bbdb-format-query query))
	(records (bbdb-records))
    ;; BBDB ORs its query attributes while EUDC ANDs them, hence we need to
    ;; call bbdb-search iteratively on the returned records for each of the
    ;; requested attributes
    (while (and records (> (length query-attrs) 0))
      (setq bbdb-attrs (append bbdb-attrs (list (car query-attrs))))
      (if (car query-attrs)
	  (setq records (eval `(bbdb-search ,(quote records) ,@bbdb-attrs))))
      (setq query-attrs (cdr query-attrs)))
    (mapcar (function
	     (lambda (record)
	       (setq filtered (eudc-filter-duplicate-attributes record))
	       ;; If there were duplicate attributes reverse the order of the
	       ;; record so the unique attributes appear first
	       (if (> (length filtered) 1)
		   (setq filtered (mapcar (function 
					   (lambda (rec)
					     (reverse rec)))
	       (setq result (append result filtered))))
	    (mapcar 'eudc-bbdb-format-record-as-result 
		    (delq nil (mapcar 'eudc-bbdb-filter-non-matching-record records))))


;;{{{      High-level interfaces (interactive functions)

(defun eudc-bbdb-set-server (dummy)
  "Set the EUDC server to BBDB."
  (eudc-set-server dummy 'bbdb)
  (message "BBDB server selected"))


(eudc-register-protocol 'bbdb)

(provide 'eudc-bbdb)

;;; eudc-bbdb.el ends here
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