78 lines
3.7 KiB
Scheme
78 lines
3.7 KiB
Scheme
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;;; CSAN-util.scm - Compehensive Scheme Archive Network utilities
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;;;
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;;; Copyright (c) 2012 Johan Ceuppens
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;;;
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;;; All rights reserved.
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;;;
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;;; Redistribution and use in source and binary forms, with or without
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;;; modification, are permitted provided that the following conditions
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;;; are met:
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;;; 1. Redistributions of source code must retain the above copyright
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;;; notice, this list of conditions and the following disclaimer.
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;;; 2. Redistributions in binary form must reproduce the above copyright
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;;; notice, this list of conditions and the following disclaimer in the
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;;; documentation and/or other materials provided with the distribution.
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;;; 3. The name of the authors may not be used to endorse or promote products
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;;; derived from this software without specific prior written permission.
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;;;
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;;; THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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;;; IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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;;; OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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;;; IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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;;; INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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;;; NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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;;; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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;;; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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;;; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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;;; THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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(define (url-bite-off url)
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(let ((s "")
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(do ((i 0 (+ i 1)))
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((or (>= i (string-length url))
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(eq? (string-ref url i) #\/)
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(eq? (string-ref url i) #\\)) ;; needs scheme URL parsing (e.g. with regexps or other perl things
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s)
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(set! s (string-append s (string (string-ref url i))))
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(cond ((or (eq? s "http://")(eq? s "ftp://")
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(eq? s " http://")(eq? s " ftp://"))
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(set! s ""))
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)))
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))
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(define CSAN-generators (make-table))
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(table-set! CSAN-generators "helpfile" (lambda ()
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(display "Type in your helpfile : commands are 'get <filename-on-server>' and 'h'")
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(let ((*out (open-outputfile (string-append "/help"))))
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(do ((s (read)(read)))
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((eof-object? s)0)
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(write s)(write " ")))))
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(define (CSAN-shell-spawn CSAN-dir mirror)
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(newline)
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(display "span> ")
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(do ((s (read)(read)))
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((null? s)0)
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(newline)
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(display "span> ")
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(cond ((symbol? s)
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(cond ((string<=? (symbol->string s)(string #\return))
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0)
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((string=? "h" (symbol->string s))
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(display "Generating helpfile...")(newline)
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(let ((*helpfilename (string-append CSAN-dir "/help")))
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(let ((*in (if (file-exists? *helpfilename)
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(open-input-file *helpfilename)
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(begin
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(display "no helpfile...")
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((CSAN-generate "helpfile"))))))
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(for-each write (read *in))))
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0)
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((string<=? "get" (symbol->string s))
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(display "enter package to fetch : ")
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(CSAN-ask-server (string-append "get " (symbol->string (read)))
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(url-bite-off mirror) 6969))
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))
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))
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(display "span> signing off."))
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