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- ;;; installed-scm-file
- ;;;; Copyright (C) 1996, 2001, 2006 Free Software Foundation, Inc.
- ;;;;
- ;;;; This library is free software; you can redistribute it and/or
- ;;;; modify it under the terms of the GNU Lesser General Public
- ;;;; License as published by the Free Software Foundation; either
- ;;;; version 2.1 of the License, or (at your option) any later version.
- ;;;;
- ;;;; This library 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
- ;;;; Lesser General Public License for more details.
- ;;;;
- ;;;; You should have received a copy of the GNU Lesser General Public
- ;;;; License along with this library; if not, write to the Free Software
- ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- ;;;;
- (define-module (ice-9 mapping)
- :use-module (ice-9 poe)
- :export (mapping-hooks-type make-mapping-hooks mapping-hooks?
- mapping-hooks-get-handle mapping-hooks-create-handle
- mapping-hooks-remove mapping-type make-mapping mapping?
- mapping-hooks mapping-data set-mapping-hooks! set-mapping-data!
- mapping-get-handle mapping-create-handle! mapping-remove!
- mapping-ref mapping-set! hash-table-mapping-hooks
- make-hash-table-mapping hash-table-mapping))
- (define mapping-hooks-type (make-record-type 'mapping-hooks '(get-handle
- create-handle
- remove)))
- (define make-mapping-hooks (perfect-funcq 17 (record-constructor mapping-hooks-type)))
- (define mapping-hooks? (record-predicate mapping-hooks-type))
- (define mapping-hooks-get-handle (record-accessor mapping-hooks-type 'get-handle))
- (define mapping-hooks-create-handle (record-accessor mapping-hooks-type 'create-handle))
- (define mapping-hooks-remove (record-accessor mapping-hooks-type 'remove))
- (define mapping-type (make-record-type 'mapping '(hooks data)))
- (define make-mapping (record-constructor mapping-type))
- (define mapping? (record-predicate mapping-type))
- (define mapping-hooks (record-accessor mapping-type 'hooks))
- (define mapping-data (record-accessor mapping-type 'data))
- (define set-mapping-hooks! (record-modifier mapping-type 'hooks))
- (define set-mapping-data! (record-modifier mapping-type 'data))
- (define (mapping-get-handle map key)
- ((mapping-hooks-get-handle (mapping-hooks map)) map key))
- (define (mapping-create-handle! map key . opts)
- (apply (mapping-hooks-create-handle (mapping-hooks map)) map key opts))
- (define (mapping-remove! map key)
- ((mapping-hooks-remove (mapping-hooks map)) map key))
- (define (mapping-ref map key . dflt)
- (cond
- ((mapping-get-handle map key) => cdr)
- (dflt => car)
- (else #f)))
- (define (mapping-set! map key val)
- (set-cdr! (mapping-create-handle! map key #f) val))
- (define hash-table-mapping-hooks
- (let ((wrap (lambda (proc) (lambda (1st . rest) (apply proc (mapping-data 1st) rest)))))
- (perfect-funcq 17
- (lambda (hash-proc assoc-proc delete-proc)
- (let ((procs (list hash-proc assoc-proc delete-proc)))
- (cond
- ((equal? procs `(,hashq ,assq ,delq!))
- (make-mapping-hooks (wrap hashq-get-handle)
- (wrap hashq-create-handle!)
- (wrap hashq-remove!)))
- ((equal? procs `(,hashv ,assv ,delv!))
- (make-mapping-hooks (wrap hashv-get-handle)
- (wrap hashv-create-handle!)
- (wrap hashv-remove!)))
- ((equal? procs `(,hash ,assoc ,delete!))
- (make-mapping-hooks (wrap hash-get-handle)
- (wrap hash-create-handle!)
- (wrap hash-remove!)))
- (else
- (make-mapping-hooks (wrap
- (lambda (table key)
- (hashx-get-handle hash-proc assoc-proc table key)))
- (wrap
- (lambda (table key)
- (hashx-create-handle hash-proc assoc-proc table key)))
- (wrap
- (lambda (table key)
- (hashx-get-handle hash-proc assoc-proc delete-proc table key)))))))))))
- (define (make-hash-table-mapping table hash-proc assoc-proc delete-proc)
- (make-mapping (hash-table-mapping-hooks hash-proc assoc-proc delete-proc) table))
- (define (hash-table-mapping . options)
- (let* ((size (or (and options (number? (car options)) (car options))
- 71))
- (hash-proc (or (kw-arg-ref options #:hash-proc) hash))
- (assoc-proc (or (kw-arg-ref options #:assoc-proc)
- (cond
- ((eq? hash-proc hash) assoc)
- ((eq? hash-proc hashv) assv)
- ((eq? hash-proc hashq) assq)
- (else (error 'hash-table-mapping
- "Hash-procedure specified with no known assoc function."
- hash-proc)))))
- (delete-proc (or (kw-arg-ref options #:delete-proc)
- (cond
- ((eq? hash-proc hash) delete!)
- ((eq? hash-proc hashv) delv!)
- ((eq? hash-proc hashq) delq!)
- (else (error 'hash-table-mapping
- "Hash-procedure specified with no known delete function."
- hash-proc)))))
- (table-constructor (or (kw-arg-ref options #:table-constructor)
- (lambda (len) (make-vector len '())))))
- (make-hash-table-mapping (table-constructor size)
- hash-proc
- assoc-proc
- delete-proc)))
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