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 (defun ansi-loop::loop-gentemp (&optional (pref 'loopva-))
32 (gensym (string pref)))
34 #+(or cmu scl sbcl openmcl)
35 (defun loop-record-iteration-path (variable data-type prep-phrases)
38 (loop for (prep . rest) in prep-phrases
43 (ansi-loop::loop-error
44 "Duplicate OF or IN iteration path: ~S." (cons prep rest)))
45 (setq in-phrase rest))
48 (ansi-loop::loop-error
49 "Duplicate FROM iteration path: ~S." (cons prep rest)))
50 (setq from-phrase rest))
52 (ansi-loop::loop-error
53 "Unknown preposition: ~S." prep))))
55 (ansi-loop::loop-error "Missing OF or IN iteration path."))
57 (setq from-phrase '(clsql-base-sys:*default-database*)))
60 (let ((query-var (ansi-loop::loop-gentemp 'loop-record-))
61 (db-var (ansi-loop::loop-gentemp 'loop-record-database-))
62 (result-set-var (ansi-loop::loop-gentemp
63 'loop-record-result-set-))
64 (step-var (ansi-loop::loop-gentemp 'loop-record-step-)))
65 (push `(when ,result-set-var
66 (clsql-base-sys:database-dump-result-set ,result-set-var ,db-var))
67 ansi-loop::*loop-epilogue*)
68 `(((,variable nil ,data-type) (,query-var ,(first in-phrase))
69 (,db-var ,(first from-phrase))
72 ((multiple-value-bind (%rs %cols)
73 (clsql-base-sys:database-query-result-set ,query-var ,db-var)
74 (setq ,result-set-var %rs ,step-var (make-list %cols))))
77 (not (clsql-base-sys:database-store-next-row ,result-set-var ,db-var ,step-var))
81 (not (clsql-base-sys:database-store-next-row ,result-set-var ,db-var ,step-var))
82 (,variable ,step-var))))
84 (let ((query-var (ansi-loop::loop-gentemp 'loop-record-))
85 (db-var (ansi-loop::loop-gentemp 'loop-record-database-))
86 (result-set-var (ansi-loop::loop-gentemp
87 'loop-record-result-set-)))
88 (push `(when ,result-set-var
89 (clsql-base-sys:database-dump-result-set ,result-set-var ,db-var))
90 ansi-loop::*loop-epilogue*)
91 `(((,variable nil ,data-type) (,query-var ,(first in-phrase))
92 (,db-var ,(first from-phrase))
93 (,result-set-var nil))
94 ((multiple-value-bind (%rs %cols)
95 (clsql-base-sys:database-query-result-set ,query-var ,db-var)
96 (setq ,result-set-var %rs ,variable (make-list %cols))))
99 (not (clsql-base-sys:database-store-next-row ,result-set-var ,db-var ,variable))
101 (not ,result-set-var)
103 (not (clsql-base-sys:database-store-next-row ,result-set-var ,db-var ,variable))
106 #+(or cmu scl sbcl openmcl)
107 (ansi-loop::add-loop-path '(record records tuple tuples)
108 'loop-record-iteration-path
109 ansi-loop::*loop-ansi-universe*
110 :preposition-groups '((:of :in) (:from))
111 :inclusive-permitted nil)