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121 lines
4.5 KiB
Scheme
121 lines
4.5 KiB
Scheme
;;;; ls.scm --- functions for browsing modules
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;;;;
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;;;; Copyright (C) 1995, 1996, 1997, 1999, 2001 Free Software Foundation, Inc.
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;;;;
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;;;; This program is free software; you can redistribute it and/or modify
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;;;; it under the terms of the GNU General Public License as published by
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;;;; the Free Software Foundation; either version 2, or (at your option)
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;;;; any later version.
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;;;;
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;;;; This program is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;;; GNU General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU General Public License
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;;;; along with this software; see the file COPYING. If not, write to
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;;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;;;; Boston, MA 02110-1301 USA
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;;;;
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;;;; As a special exception, the Free Software Foundation gives permission
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;;;; for additional uses of the text contained in its release of GUILE.
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;;;;
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;;;; The exception is that, if you link the GUILE library with other files
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;;;; to produce an executable, this does not by itself cause the
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;;;; resulting executable to be covered by the GNU General Public License.
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;;;; Your use of that executable is in no way restricted on account of
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;;;; linking the GUILE library code into it.
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;;;;
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;;;; This exception does not however invalidate any other reasons why
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;;;; the executable file might be covered by the GNU General Public License.
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;;;;
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;;;; This exception applies only to the code released by the
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;;;; Free Software Foundation under the name GUILE. If you copy
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;;;; code from other Free Software Foundation releases into a copy of
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;;;; GUILE, as the General Public License permits, the exception does
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;;;; not apply to the code that you add in this way. To avoid misleading
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;;;; anyone as to the status of such modified files, you must delete
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;;;; this exception notice from them.
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;;;;
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;;;; If you write modifications of your own for GUILE, it is your choice
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;;;; whether to permit this exception to apply to your modifications.
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;;;; If you do not wish that, delete this exception notice.
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;;;;
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(define-module (ice-9 ls)
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:use-module (ice-9 common-list)
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:export (local-definitions-in definitions-in ls lls
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recursive-local-define))
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;;;;
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;;; local-definitions-in root name
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;;; Returns a list of names defined locally in the named
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;;; subdirectory of root.
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;;; definitions-in root name
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;;; Returns a list of all names defined in the named
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;;; subdirectory of root. The list includes alll locally
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;;; defined names as well as all names inherited from a
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;;; member of a use-list.
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;;;
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;;; A convenient interface for examining the nature of things:
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;;;
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;;; ls . various-names
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;;;
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;;; With no arguments, return a list of definitions in
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;;; `(current-module)'.
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;;;
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;;; With just one argument, interpret that argument as the
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;;; name of a subdirectory of the current module and
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;;; return a list of names defined there.
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;;;
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;;; With more than one argument, still compute
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;;; subdirectory lists, but return a list:
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;;; ((<subdir-name> . <names-defined-there>)
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;;; (<subdir-name> . <names-defined-there>)
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;;; ...)
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;;;
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;;; lls . various-names
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;;;
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;;; Analogous to `ls', but with local definitions only.
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(define (local-definitions-in root names)
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(let ((m (nested-ref root names))
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(answer '()))
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(if (not (module? m))
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(set! answer m)
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(module-for-each (lambda (k v) (set! answer (cons k answer))) m))
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answer))
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(define (definitions-in root names)
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(let ((m (nested-ref root names)))
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(if (not (module? m))
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m
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(reduce union
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(cons (local-definitions-in m '())
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(map (lambda (m2) (definitions-in m2 '()))
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(module-uses m)))))))
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(define (ls . various-refs)
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(if (pair? various-refs)
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(if (cdr various-refs)
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(map (lambda (ref)
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(cons ref (definitions-in (current-module) ref)))
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various-refs)
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(definitions-in (current-module) (car various-refs)))
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(definitions-in (current-module) '())))
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(define (lls . various-refs)
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(if (pair? various-refs)
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(if (cdr various-refs)
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(map (lambda (ref)
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(cons ref (local-definitions-in (current-module) ref)))
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various-refs)
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(local-definitions-in (current-module) (car various-refs)))
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(local-definitions-in (current-module) '())))
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(define (recursive-local-define name value)
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(let ((parent (reverse! (cdr (reverse name)))))
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(and parent (make-modules-in (current-module) parent))
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(local-define name value)))
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;;; ls.scm ends here
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