| 1 | ;;;; ls.scm --- functions for browsing modules |
| 2 | ;;;; |
| 3 | ;;;; Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. |
| 4 | ;;;; |
| 5 | ;;;; This program is free software; you can redistribute it and/or modify |
| 6 | ;;;; it under the terms of the GNU General Public License as published by |
| 7 | ;;;; the Free Software Foundation; either version 2, or (at your option) |
| 8 | ;;;; any later version. |
| 9 | ;;;; |
| 10 | ;;;; This program is distributed in the hope that it will be useful, |
| 11 | ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | ;;;; GNU General Public License for more details. |
| 14 | ;;;; |
| 15 | ;;;; You should have received a copy of the GNU General Public License |
| 16 | ;;;; along with this software; see the file COPYING. If not, write to |
| 17 | ;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
| 18 | ;;;; Boston, MA 02111-1307 USA |
| 19 | ;;;; |
| 20 | \f |
| 21 | (define-module (ice-9 ls) |
| 22 | :use-module (ice-9 common-list)) |
| 23 | |
| 24 | ;;;; |
| 25 | ;;; local-definitions-in root name |
| 26 | ;;; Returns a list of names defined locally in the named |
| 27 | ;;; subdirectory of root. |
| 28 | ;;; definitions-in root name |
| 29 | ;;; Returns a list of all names defined in the named |
| 30 | ;;; subdirectory of root. The list includes alll locally |
| 31 | ;;; defined names as well as all names inherited from a |
| 32 | ;;; member of a use-list. |
| 33 | ;;; |
| 34 | ;;; A convenient interface for examining the nature of things: |
| 35 | ;;; |
| 36 | ;;; ls . various-names |
| 37 | ;;; |
| 38 | ;;; With just one argument, interpret that argument as the |
| 39 | ;;; name of a subdirectory of the current module and |
| 40 | ;;; return a list of names defined there. |
| 41 | ;;; |
| 42 | ;;; With more than one argument, still compute |
| 43 | ;;; subdirectory lists, but return a list: |
| 44 | ;;; ((<subdir-name> . <names-defined-there>) |
| 45 | ;;; (<subdir-name> . <names-defined-there>) |
| 46 | ;;; ...) |
| 47 | ;;; |
| 48 | |
| 49 | (define-public (local-definitions-in root names) |
| 50 | (let ((m (nested-ref root names)) |
| 51 | (answer '())) |
| 52 | (if (not (module? m)) |
| 53 | (set! answer m) |
| 54 | (module-for-each (lambda (k v) (set! answer (cons k answer))) m)) |
| 55 | answer)) |
| 56 | |
| 57 | (define-public (definitions-in root names) |
| 58 | (let ((m (nested-ref root names))) |
| 59 | (if (not (module? m)) |
| 60 | m |
| 61 | (reduce union |
| 62 | (cons (local-definitions-in m '()) |
| 63 | (map (lambda (m2) (definitions-in m2 '())) |
| 64 | (module-uses m))))))) |
| 65 | |
| 66 | (define-public (ls . various-refs) |
| 67 | (and (pair? various-refs) |
| 68 | (if (cdr various-refs) |
| 69 | (map (lambda (ref) |
| 70 | (cons ref (definitions-in (current-module) ref))) |
| 71 | various-refs) |
| 72 | (definitions-in (current-module) (car various-refs))))) |
| 73 | |
| 74 | (define-public (lls . various-refs) |
| 75 | (and (pair? various-refs) |
| 76 | (if (cdr various-refs) |
| 77 | (map (lambda (ref) |
| 78 | (cons ref (local-definitions-in (current-module) ref))) |
| 79 | various-refs) |
| 80 | (local-definitions-in (current-module) (car various-refs))))) |
| 81 | |
| 82 | (define-public (recursive-local-define name value) |
| 83 | (let ((parent (reverse! (cdr (reverse name))))) |
| 84 | (and parent (make-modules-in (current-module) parent)) |
| 85 | (local-define name value))) |