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;;;; Copyright (C) 2001, 2004 Dave Lambert
;;;;
;;;; 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, 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 software; see the file COPYING. If not, write to
;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
;;;; Boston, MA 02111-1307 USA
;;;;
(define-module (database simplesql)
#:use-module (ice-9 optargs))
(load-extension "libguile-database-simplesql" "simplesql_extension_init")
;; Declare the exported functions.
(export simplesql-open simplesql-query simplesql-close
simplesql-database? simplesql-escape)
(define (simplesql-open . args)
(let* ((original-slots '(#:api #:database #:host #:user #:password))
(all-slots (cons* #:port original-slots)))
(letrec ((pass-one (lambda (done raw slots)
(cond ((null? raw) done)
((keyword? (car raw)) (pass-two done raw))
(else (pass-one (cons* (car slots) (car raw) done)
(cdr raw)
(cdr slots))))))
(pass-two (lambda (done raw)
(cond ((null? raw)
done)
((member (car raw) done)
(throw 'duplicate-argument (car raw)))
((not (member (car raw) all-slots))
(throw 'unrecognized-keyword (car raw)))
((or (null? (cdr raw))
(keyword? (cadr raw)))
(throw 'malformed-keyword-list raw))
(else (pass-two (cons* (car raw) (cadr raw) done)
(cddr raw))))))
(caller (lambda* (#:key api database host port user password)
(cond ((not api)
(throw 'missing-argument #:api))
((not database)
(throw 'missing-argument #:database))
(else
(%simplesql-open api database host port user password))))))
(apply caller (pass-one '() args original-slots)))))
;; Provide deprecated aliases.
(export simplesql-db?)
(export sql-open sql-query sql-close sql-db? sql-escape)
(define simplesql-db? simplesql-database?)
(define sql-open simplesql-open)
(define sql-query simplesql-query)
(define sql-close simplesql-close)
(define sql-db? simplesql-db?)
(define sql-escape simplesql-escape)
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