1 ;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
2 ;;;; *************************************************************************
3 ;;;; FILE IDENTIFICATION
5 ;;;; Name: loop-extension.lisp
6 ;;;; Purpose: Extensions to the Loop macro for CMUCL
7 ;;;; Programmer: Pierre R. Mai
9 ;;;; Copyright (c) 1999-2001 Pierre R. Mai
13 ;;;; The functions in this file were orignally distributed in the
14 ;;;; MaiSQL package in the file sql/sql.cl
15 ;;;; *************************************************************************
17 (in-package #:cl-user)
19 ;;;; MIT-LOOP extension
22 (eval-when (:compile-toplevel :load-toplevel :execute)
23 (defpackage #:ansi-loop
24 (:import-from #:sb-loop
27 #:*loop-ansi-universe*
31 (eval-when (:compile-toplevel :load-toplevel :execute)
32 (defpackage #:ansi-loop
37 (defpackage #:ansi-loop
41 #:*loop-ansi-universe*
45 (defun ansi-loop::loop-gentemp (&optional (pref 'loopva-))
46 (gensym (string pref)))
48 #+(or cmu scl sbcl openmcl allegro)
49 (defun loop-record-iteration-path (variable data-type prep-phrases)
52 (loop for (prep . rest) in prep-phrases
57 (ansi-loop::loop-error
58 "Duplicate OF or IN iteration path: ~S." (cons prep rest)))
59 (setq in-phrase rest))
62 (ansi-loop::loop-error
63 "Duplicate FROM iteration path: ~S." (cons prep rest)))
64 (setq from-phrase rest))
66 (ansi-loop::loop-error
67 "Unknown preposition: ~S." prep))))
69 (ansi-loop::loop-error "Missing OF or IN iteration path."))
71 (setq from-phrase '(clsql-base-sys:*default-database*)))
74 (let ((query-var (ansi-loop::loop-gentemp 'loop-record-))
75 (db-var (ansi-loop::loop-gentemp 'loop-record-database-))
76 (result-set-var (ansi-loop::loop-gentemp
77 'loop-record-result-set-))
78 (step-var (ansi-loop::loop-gentemp 'loop-record-step-)))
79 (push `(when ,result-set-var
80 (clsql-base-sys:database-dump-result-set ,result-set-var ,db-var))
81 ansi-loop::*loop-epilogue*)
82 `(((,variable nil ,@(and data-type (list data-type)))
83 (,query-var ,(first in-phrase))
84 (,db-var ,(first from-phrase))
87 ((multiple-value-bind (%rs %cols)
88 (clsql-base-sys:database-query-result-set ,query-var ,db-var)
89 (setq ,result-set-var %rs ,step-var (make-list %cols))))
92 (not (clsql-base-sys:database-store-next-row ,result-set-var ,db-var ,step-var))
96 (not (clsql-base-sys:database-store-next-row ,result-set-var ,db-var ,step-var))
97 (,variable ,step-var))))
99 (let ((query-var (ansi-loop::loop-gentemp 'loop-record-))
100 (db-var (ansi-loop::loop-gentemp 'loop-record-database-))
101 (result-set-var (ansi-loop::loop-gentemp
102 'loop-record-result-set-)))
103 (push `(when ,result-set-var
104 (clsql-base-sys:database-dump-result-set ,result-set-var ,db-var))
105 ansi-loop::*loop-epilogue*)
106 `(((,variable nil ,@(and data-type (list data-type)))
107 (,query-var ,(first in-phrase))
108 (,db-var ,(first from-phrase))
109 (,result-set-var nil))
110 ((multiple-value-bind (%rs %cols)
111 (clsql-base-sys:database-query-result-set ,query-var ,db-var)
112 (setq ,result-set-var %rs ,variable (make-list %cols))))
115 (not (clsql-base-sys:database-store-next-row ,result-set-var ,db-var ,variable))
117 (not ,result-set-var)
119 (not (clsql-base-sys:database-store-next-row ,result-set-var ,db-var ,variable))
122 #+(or cmu scl sbcl openmcl allegro)
123 (ansi-loop::add-loop-path '(record records tuple tuples)
124 'loop-record-iteration-path
125 ansi-loop::*loop-ansi-universe*
126 :preposition-groups '((:of :in) (:from))
127 :inclusive-permitted nil)
129 #+lispworks (in-package loop)
132 (defun loop::loop-gentemp (&optional (pref 'loopva-))
133 (gensym (string pref)))
136 (cl-user::define-loop-method (record records tuple tuples) ansi-loop::clsql-loop-method (in of from))
139 (defun ansi-loop::clsql-loop-method (method-name iter-var iter-var-data-type
140 prep-phrases inclusive? allowed-preps
141 method-specific-data)
142 (let ((in-phrase nil)
144 (loop for (prep . rest) in prep-phrases
147 ((or (eq prep 'in) (eq prep 'of))
150 "Duplicate OF or IN iteration path: ~S." (cons prep rest)))
151 (setq in-phrase rest))
155 "Duplicate FROM iteration path: ~S." (cons prep rest)))
156 (setq from-phrase rest))
159 "Unknown preposition: ~S." prep))))
161 (error "Missing OF or IN iteration path."))
163 (setq from-phrase '(clsql-base-sys:*default-database*)))
166 (let ((query-var (ansi-loop::loop-gentemp 'loop-record-))
167 (db-var (ansi-loop::loop-gentemp 'loop-record-database-))
168 (result-set-var (ansi-loop::loop-gentemp
169 'loop-record-result-set-))
170 (step-var (ansi-loop::loop-gentemp 'loop-record-step-)))
174 `(,@(mapcar (lambda (v) `(,v nil)) iter-var)
175 (,query-var ,in-phrase)
176 (,db-var ,(first from-phrase))
177 (,result-set-var nil)
179 `((multiple-value-bind (%rs %cols)
180 (clsql-base-sys:database-query-result-set ,query-var ,db-var)
181 (setq ,result-set-var %rs ,step-var (make-list %cols))))
184 `((unless (clsql-base-sys:database-store-next-row ,result-set-var ,db-var ,step-var)
185 (when ,result-set-var
186 (clsql-base-sys:database-dump-result-set ,result-set-var ,db-var))
188 `(,iter-var ,step-var)
189 `((unless (clsql-base-sys:database-store-next-row ,result-set-var ,db-var ,step-var)
190 (when ,result-set-var
191 (clsql-base-sys:database-dump-result-set ,result-set-var ,db-var))
193 `(,iter-var ,step-var)
197 (let ((query-var (ansi-loop::loop-gentemp 'loop-record-))
198 (db-var (ansi-loop::loop-gentemp 'loop-record-database-))
199 (result-set-var (ansi-loop::loop-gentemp
200 'loop-record-result-set-)))
204 `((,iter-var nil ,iter-var-data-type) (,query-var ,in-phrase)
205 (,db-var ,(first from-phrase))
206 (,result-set-var nil))
207 `((multiple-value-bind (%rs %cols)
208 (clsql-base-sys:database-query-result-set ,query-var ,db-var)
209 (setq ,result-set-var %rs ,iter-var (make-list %cols))))
212 `((unless (clsql-base-sys:database-store-next-row ,result-set-var ,db-var ,iter-var)
213 (when ,result-set-var
214 (clsql-base-sys:database-dump-result-set ,result-set-var ,db-var))
217 `((unless (clsql-base-sys:database-store-next-row ,result-set-var ,db-var ,iter-var)
218 (when ,result-set-var
219 (clsql-base-sys:database-dump-result-set ,result-set-var ,db-var))