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guix: scripts: Fix corner cases of hint for option typo. 

* guix/scripts.scm (option-hint): Fix corner cases.
(parse-command-line)[parse-options-from]: Remove 'string?' check
introduced in 11f11d7ecb.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
zimoun 2021-02-05 00:02:50 +01:00 committed by Ludovic Courtès
parent ee3226e9d5
commit e68ae7f00e
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1 changed files with 7 additions and 3 deletions
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guix/scripts.scm
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@ -118,7 +118,12 @@ procedure, but both the category and synopsis are meant to be read (parsed) by
according to'string-distance'."
(define (options->long-names options)
(filter string? (append-map option-names options)))
(string-closest guess (options->long-names options) #:threshold 3))
(match guess
((? string?)
(match (string-split guess #\=)
((name rest ...)
(string-closest name (options->long-names options) #:threshold 3))))
(_ #f)))
(define (args-fold* args options unrecognized-option-proc operand-proc . seeds)
"A wrapper on top of `args-fold' that does proper user-facing error
@ -157,8 +162,7 @@ parameter of 'args-fold'."
;; Actual parsing takes place here.
(apply args-fold* args options
(lambda (opt name arg . rest)
(let ((hint (and (string? name) ;not a short option
(option-hint name options))))
(let ((hint (option-hint name options)))
(report-error (G_ "~A: unrecognized option~%") name)
(when hint
(display-hint