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;; utils.ss -- generic utilities
;; Copyright (C) 2009 Jose Antonio Ortega Ruiz
;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
;; Start date: Sun May 03, 2009 03:09
;; This file 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 3 of the License, or
;; (at your option) any later version.
;; This file 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 program. If not, see <http://www.gnu.org/licenses/>.
;;; Comentary:
;; Utility procedures
;;; Code:
#lang scheme
(provide module-path-name->name
pair->list
keyword->symbol)
(require srfi/13)
(define (module-path-name->name path)
(cond ((path? path)
(let* ((path (path->string path))
(cpaths (map (compose path->string path->directory-path)
(current-library-collection-paths)))
(prefix-len (lambda (p)
(let ((pl (string-length p)))
(if (= pl (string-prefix-length p path)) pl 0))))
(lens (map prefix-len cpaths))
(real-path (substring path (apply max lens))))
(if (absolute-path? real-path)
(call-with-values (lambda () (split-path path))
(lambda (_ basename __) (path->string basename)))
(regexp-replace "\\.[^./]*$" real-path ""))))
((eq? path '#%kernel) "(kernel)")
((string? path) path)
((symbol? path) (symbol->string path))
(else "<top>")))
(define (pair->list pair)
(let loop ((d pair) (s '()))
(cond ((null? d) (reverse s))
((symbol? d) (reverse (cons d s)))
(else (loop (cdr d) (cons (car d) s))))))
(define keyword->symbol (compose string->symbol keyword->string))
;;; utils.ss ends here
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