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Fix from Russ McManus:

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* getopt-long.scm (parse-option-spec): Store 'optional as the
value-required? field for options that take optional values.
(process-short-option): Grab a value for the option when it takes
either an optional or required value.
This commit is contained in:
Jim Blandy 1999-02-15 12:53:10 +00:00
parent 4ca48ad457
commit cb5d1fb73a
1 changed files with 9 additions and 4 deletions
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13
ice-9/getopt-long.scm
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@ -1,5 +1,5 @@
;;; Author: Russ McManus ;;; Author: Russ McManus
;;; $Id: getopt-long.scm,v 1.1 1999-02-12 10:09:29 jimb Exp $ ;;; $Id: getopt-long.scm,v 1.2 1999-02-15 12:53:10 jimb Exp $
;;; ;;;
;;; Copyright (C) 1998 FSF ;;; Copyright (C) 1998 FSF
;;; ;;;
@ -408,10 +408,14 @@
(option-spec->predicate-ls spec)) (option-spec->predicate-ls spec))
(cdr parse-ls)))) (cdr parse-ls))))
((eq? val 'optional) ((eq? val 'optional)
;; for optional values, simply don't add a predicate. ;; for optional values, don't add a predicate. do, however
;; put the value 'optional in the value-required? field. this
;; setting checks whether optional values are 'greedy'. set
;; to #f to make optional value clauses 'non-greedy'.
(parse-iter (make-option-spec (option-spec->name spec) (parse-iter (make-option-spec (option-spec->name spec)
(option-spec->value spec) (option-spec->value spec)
#f 'optional
(option-spec->single-char spec) (option-spec->single-char spec)
(option-spec->predicate-ls spec) (option-spec->predicate-ls spec)
(cdr parse-ls)))) (cdr parse-ls))))
@ -521,7 +525,8 @@ needs to record whether the option ever can take a value."
(let* ((next-value (if (null? (cdr argument-ls)) #f (cadr argument-ls))) (let* ((next-value (if (null? (cdr argument-ls)) #f (cadr argument-ls)))
(option-value (if (and next-value (option-value (if (and next-value
(not (is-short-option? next-value)) (not (is-short-option? next-value))
(not (is-long-option? next-value))) (not (is-long-option? next-value))
(option-spec->value-required? spec))
next-value next-value
#t)) #t))
(new-alist (cons (cons (option-spec->name spec) option-value) alist))) (new-alist (cons (cons (option-spec->name spec) option-value) alist)))