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- ;;;; ls.scm --- functions for browsing modules
- ;;;;
- ;;;; Copyright (C) 1995, 1996, 1997, 1999, 2001 Free Software Foundation, Inc.
- ;;;;
- ;;;; 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
- ;;;;
- ;;;; As a special exception, the Free Software Foundation gives permission
- ;;;; for additional uses of the text contained in its release of GUILE.
- ;;;;
- ;;;; The exception is that, if you link the GUILE library with other files
- ;;;; to produce an executable, this does not by itself cause the
- ;;;; resulting executable to be covered by the GNU General Public License.
- ;;;; Your use of that executable is in no way restricted on account of
- ;;;; linking the GUILE library code into it.
- ;;;;
- ;;;; This exception does not however invalidate any other reasons why
- ;;;; the executable file might be covered by the GNU General Public License.
- ;;;;
- ;;;; This exception applies only to the code released by the
- ;;;; Free Software Foundation under the name GUILE. If you copy
- ;;;; code from other Free Software Foundation releases into a copy of
- ;;;; GUILE, as the General Public License permits, the exception does
- ;;;; not apply to the code that you add in this way. To avoid misleading
- ;;;; anyone as to the status of such modified files, you must delete
- ;;;; this exception notice from them.
- ;;;;
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- ;;;; whether to permit this exception to apply to your modifications.
- ;;;; If you do not wish that, delete this exception notice.
- ;;;;
-
- (define-module (ice-9 ls)
- :use-module (ice-9 common-list)
- :export (local-definitions-in definitions-in ls lls
- recursive-local-define))
-
- ;;;;
- ;;; local-definitions-in root name
- ;;; Returns a list of names defined locally in the named
- ;;; subdirectory of root.
- ;;; definitions-in root name
- ;;; Returns a list of all names defined in the named
- ;;; subdirectory of root. The list includes alll locally
- ;;; defined names as well as all names inherited from a
- ;;; member of a use-list.
- ;;;
- ;;; A convenient interface for examining the nature of things:
- ;;;
- ;;; ls . various-names
- ;;;
- ;;; With no arguments, return a list of definitions in
- ;;; `(current-module)'.
- ;;;
- ;;; With just one argument, interpret that argument as the
- ;;; name of a subdirectory of the current module and
- ;;; return a list of names defined there.
- ;;;
- ;;; With more than one argument, still compute
- ;;; subdirectory lists, but return a list:
- ;;; ((<subdir-name> . <names-defined-there>)
- ;;; (<subdir-name> . <names-defined-there>)
- ;;; ...)
- ;;;
- ;;; lls . various-names
- ;;;
- ;;; Analogous to `ls', but with local definitions only.
-
- (define (local-definitions-in root names)
- (let ((m (nested-ref root names))
- (answer '()))
- (if (not (module? m))
- (set! answer m)
- (module-for-each (lambda (k v) (set! answer (cons k answer))) m))
- answer))
-
- (define (definitions-in root names)
- (let ((m (nested-ref root names)))
- (if (not (module? m))
- m
- (reduce union
- (cons (local-definitions-in m '())
- (map (lambda (m2) (definitions-in m2 '()))
- (module-uses m)))))))
-
- (define (ls . various-refs)
- (if (pair? various-refs)
- (if (cdr various-refs)
- (map (lambda (ref)
- (cons ref (definitions-in (current-module) ref)))
- various-refs)
- (definitions-in (current-module) (car various-refs)))
- (definitions-in (current-module) '())))
-
- (define (lls . various-refs)
- (if (pair? various-refs)
- (if (cdr various-refs)
- (map (lambda (ref)
- (cons ref (local-definitions-in (current-module) ref)))
- various-refs)
- (local-definitions-in (current-module) (car various-refs)))
- (local-definitions-in (current-module) '())))
-
- (define (recursive-local-define name value)
- (let ((parent (reverse! (cdr (reverse name)))))
- (and parent (make-modules-in (current-module) parent))
- (local-define name value)))
-
- ;;; ls.scm ends here
-