Commit | Line | Data |
---|---|---|
0f2d19dd JB |
1 | ;;; installed-scm-file |
2 | ||
cd5fea8d | 3 | ;;;; Copyright (C) 1996, 2001, 2006 Free Software Foundation, Inc. |
0f2d19dd | 4 | ;;;; |
73be1d9e MV |
5 | ;;;; This library is free software; you can redistribute it and/or |
6 | ;;;; modify it under the terms of the GNU Lesser General Public | |
7 | ;;;; License as published by the Free Software Foundation; either | |
8 | ;;;; version 2.1 of the License, or (at your option) any later version. | |
0f2d19dd | 9 | ;;;; |
73be1d9e | 10 | ;;;; This library is distributed in the hope that it will be useful, |
0f2d19dd | 11 | ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
73be1d9e MV |
12 | ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | ;;;; Lesser General Public License for more details. | |
0f2d19dd | 14 | ;;;; |
73be1d9e MV |
15 | ;;;; You should have received a copy of the GNU Lesser General Public |
16 | ;;;; License along with this library; if not, write to the Free Software | |
92205699 | 17 | ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
0f2d19dd JB |
18 | ;;;; |
19 | ||
20 | \f | |
21 | ||
8bb7330c | 22 | (define-module (ice-9 mapping) |
1a179b03 MD |
23 | :use-module (ice-9 poe) |
24 | :export (mapping-hooks-type make-mapping-hooks mapping-hooks? | |
25 | mapping-hooks-get-handle mapping-hooks-create-handle | |
26 | mapping-hooks-remove mapping-type make-mapping mapping? | |
27 | mapping-hooks mapping-data set-mapping-hooks! set-mapping-data! | |
28 | mapping-get-handle mapping-create-handle! mapping-remove! | |
29 | mapping-ref mapping-set! hash-table-mapping-hooks | |
30 | make-hash-table-mapping hash-table-mapping)) | |
31 | ||
32 | (define mapping-hooks-type (make-record-type 'mapping-hooks '(get-handle | |
33 | create-handle | |
34 | remove))) | |
35 | ||
36 | ||
37 | (define make-mapping-hooks (perfect-funcq 17 (record-constructor mapping-hooks-type))) | |
38 | (define mapping-hooks? (record-predicate mapping-hooks-type)) | |
39 | (define mapping-hooks-get-handle (record-accessor mapping-hooks-type 'get-handle)) | |
40 | (define mapping-hooks-create-handle (record-accessor mapping-hooks-type 'create-handle)) | |
41 | (define mapping-hooks-remove (record-accessor mapping-hooks-type 'remove)) | |
42 | ||
43 | (define mapping-type (make-record-type 'mapping '(hooks data))) | |
44 | (define make-mapping (record-constructor mapping-type)) | |
45 | (define mapping? (record-predicate mapping-type)) | |
46 | (define mapping-hooks (record-accessor mapping-type 'hooks)) | |
47 | (define mapping-data (record-accessor mapping-type 'data)) | |
48 | (define set-mapping-hooks! (record-modifier mapping-type 'hooks)) | |
49 | (define set-mapping-data! (record-modifier mapping-type 'data)) | |
50 | ||
51 | (define (mapping-get-handle map key) | |
0f2d19dd | 52 | ((mapping-hooks-get-handle (mapping-hooks map)) map key)) |
1a179b03 | 53 | (define (mapping-create-handle! map key . opts) |
0f2d19dd | 54 | (apply (mapping-hooks-create-handle (mapping-hooks map)) map key opts)) |
1a179b03 | 55 | (define (mapping-remove! map key) |
0f2d19dd JB |
56 | ((mapping-hooks-remove (mapping-hooks map)) map key)) |
57 | ||
1a179b03 | 58 | (define (mapping-ref map key . dflt) |
0f2d19dd JB |
59 | (cond |
60 | ((mapping-get-handle map key) => cdr) | |
61 | (dflt => car) | |
62 | (else #f))) | |
63 | ||
1a179b03 | 64 | (define (mapping-set! map key val) |
0f2d19dd JB |
65 | (set-cdr! (mapping-create-handle! map key #f) val)) |
66 | ||
67 | \f | |
68 | ||
1a179b03 | 69 | (define hash-table-mapping-hooks |
0f2d19dd JB |
70 | (let ((wrap (lambda (proc) (lambda (1st . rest) (apply proc (mapping-data 1st) rest))))) |
71 | ||
72 | (perfect-funcq 17 | |
73 | (lambda (hash-proc assoc-proc delete-proc) | |
74 | (let ((procs (list hash-proc assoc-proc delete-proc))) | |
75 | (cond | |
76 | ((equal? procs `(,hashq ,assq ,delq!)) | |
77 | (make-mapping-hooks (wrap hashq-get-handle) | |
78 | (wrap hashq-create-handle!) | |
79 | (wrap hashq-remove!))) | |
80 | ((equal? procs `(,hashv ,assv ,delv!)) | |
81 | (make-mapping-hooks (wrap hashv-get-handle) | |
82 | (wrap hashv-create-handle!) | |
83 | (wrap hashv-remove!))) | |
84 | ((equal? procs `(,hash ,assoc ,delete!)) | |
85 | (make-mapping-hooks (wrap hash-get-handle) | |
86 | (wrap hash-create-handle!) | |
87 | (wrap hash-remove!))) | |
88 | (else | |
89 | (make-mapping-hooks (wrap | |
90 | (lambda (table key) | |
91 | (hashx-get-handle hash-proc assoc-proc table key))) | |
92 | (wrap | |
93 | (lambda (table key) | |
94 | (hashx-create-handle hash-proc assoc-proc table key))) | |
95 | (wrap | |
96 | (lambda (table key) | |
97 | (hashx-get-handle hash-proc assoc-proc delete-proc table key))))))))))) | |
98 | ||
1a179b03 | 99 | (define (make-hash-table-mapping table hash-proc assoc-proc delete-proc) |
0f2d19dd JB |
100 | (make-mapping (hash-table-mapping-hooks hash-proc assoc-proc delete-proc) table)) |
101 | ||
1a179b03 | 102 | (define (hash-table-mapping . options) |
0f2d19dd JB |
103 | (let* ((size (or (and options (number? (car options)) (car options)) |
104 | 71)) | |
ffa04c1b MV |
105 | (hash-proc (or (kw-arg-ref options #:hash-proc) hash)) |
106 | (assoc-proc (or (kw-arg-ref options #:assoc-proc) | |
0f2d19dd JB |
107 | (cond |
108 | ((eq? hash-proc hash) assoc) | |
109 | ((eq? hash-proc hashv) assv) | |
110 | ((eq? hash-proc hashq) assq) | |
111 | (else (error 'hash-table-mapping | |
112 | "Hash-procedure specified with no known assoc function." | |
113 | hash-proc))))) | |
ffa04c1b | 114 | (delete-proc (or (kw-arg-ref options #:delete-proc) |
0f2d19dd JB |
115 | (cond |
116 | ((eq? hash-proc hash) delete!) | |
117 | ((eq? hash-proc hashv) delv!) | |
118 | ((eq? hash-proc hashq) delq!) | |
119 | (else (error 'hash-table-mapping | |
120 | "Hash-procedure specified with no known delete function." | |
121 | hash-proc))))) | |
ffa04c1b | 122 | (table-constructor (or (kw-arg-ref options #:table-constructor) |
95b6af86 | 123 | (lambda (len) (make-vector len '()))))) |
0f2d19dd JB |
124 | (make-hash-table-mapping (table-constructor size) |
125 | hash-proc | |
126 | assoc-proc | |
127 | delete-proc))) | |
128 |