/usr/share/gauche-0.9/0.9.1/lib/srfi-37.scm is in gauche 0.9.1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | ;;; args-fold.scm - a program argument processor
;;;
;;; Copyright (c) 2002 Anthony Carrico
;;;
;;; All rights reserved.
;;;
;;; Redistribution and use in source and binary forms, with or without
;;; modification, are permitted provided that the following conditions
;;; are met:
;;; 1. Redistributions of source code must retain the above copyright
;;; notice, this list of conditions and the following disclaimer.
;;; 2. Redistributions in binary form must reproduce the above copyright
;;; notice, this list of conditions and the following disclaimer in the
;;; documentation and/or other materials provided with the distribution.
;;; 3. The name of the authors may not be used to endorse or promote products
;;; derived from this software without specific prior written permission.
;;;
;;; THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
;;; IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
;;; OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
;;; IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
;;; INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
;;; NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
;;; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
;;; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
;;; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
;;; THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;;; Modified by Shiro Kawai to adapt to Gauche
;;; * Module stuff added.
;;; * The use of srfi-9 record in the original code is replaced for a class.
;;; * Replaced some expressions to utilize Gauche's native featuers.
(define-module srfi-37
(use srfi-1)
(use srfi-11)
(export option option-names option-required-arg? option-optional-arg?
option-processor option? args-fold)
)
(select-module srfi-37)
(define-class <option-type> ()
((names :init-keyword :names :getter option-names)
(required-arg? :init-keyword :required-arg? :getter option-required-arg?)
(optional-arg? :init-keyword :optional-arg? :getter option-optional-arg?)
(processor :init-keyword :processor :getter option-processor)
))
(define (option names required-arg? optional-arg? processor)
(make <option-type>
:names names :required-arg? required-arg?
:optional-arg? optional-arg? :processor processor))
(define (option? obj) (is-a? obj <option-type>))
(define (args-fold args options unrecognized-option-proc operand-proc . seeds)
(define (find-option name)
(find (lambda (option)
(find (cut equal? name <>) (option-names option)))
options))
(define (scan-short-options index shorts args seeds)
(if (= index (string-length shorts))
(scan-args args seeds)
(let* ((name (string-ref shorts index))
(option (or (find-option name)
(option (list name) #f #f
unrecognized-option-proc))))
(cond ((and (< (+ index 1) (string-length shorts))
(or (option-required-arg? option)
(option-optional-arg? option)))
(receive seeds
(apply (option-processor option) option name
(substring shorts (+ index 1)
(string-length shorts))
seeds)
(scan-args args seeds)))
((and (option-required-arg? option)
(pair? args))
(receive seeds
(apply (option-processor option) option name
(car args) seeds)
(scan-args (cdr args) seeds)))
(else
(receive seeds
(apply (option-processor option) option name #f seeds)
(scan-short-options (+ index 1) shorts args seeds)))
))))
(define (scan-operands operands seeds)
(if (null? operands)
(apply values seeds)
(receive seeds (apply operand-proc (car operands) seeds)
(scan-operands (cdr operands) seeds))))
(define (scan-args args seeds)
(if (null? args)
(apply values seeds)
(let ((arg (car args))
(args (cdr args)))
(cond
((string=? "--" arg)
;; End option scanning:
(scan-operands args seeds))
((#/^--([^=]+)=(.*)$/ arg)
;; Found long option with arg:
=> (lambda (m)
(let*-values (((name) (m 1))
((option-arg) (m 2))
((option)
(or (find-option name)
(option (list name) #t #f
unrecognized-option-proc)))
(seeds
(apply (option-processor option) option name
option-arg seeds)))
(scan-args args seeds))))
((#/^--(.+)$/ arg)
;; Found long option:
=> (lambda (m)
(let* ((name (m 1))
(option (or (find-option name)
(option (list name) #f #f
unrecognized-option-proc))))
(if (and (option-required-arg? option)
(pair? args))
(receive seeds
(apply (option-processor option) option name
(car args) seeds)
(scan-args (cdr args) seeds))
(receive seeds
(apply (option-processor option) option name
#f seeds)
(scan-args args seeds))))))
((#/^-(.+)$/ arg)
;; Found short options
=> (lambda (m)
(scan-short-options 0 (m 1) args seeds)))
(else
(receive seeds (apply operand-proc arg seeds)
(scan-args args seeds)))
)
)))
(scan-args args seeds))
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