* possible wrong behaviour with patterns double [ with no closing ] @ 2022-01-17 3:23 Christoph Anton Mitterer 2022-01-18 6:18 ` Herbert Xu 0 siblings, 1 reply; 5+ messages in thread From: Christoph Anton Mitterer @ 2022-01-17 3:23 UTC (permalink / raw) To: dash Hey. Assuming a pattern of: [.*^\] my understanding was that this would actually mean: - the literal string [. followed by - the pattern notation special character * (i.e. any string) followed by - the literal string ^] Because ] is escaped, it's to be taken literally and in a pattern a [ without corresponding ] is to be taken literally as well. That seems to work in dash: $ case '[.^]' in ([.*^\]) echo match;; (*) echo no match;; esac match $ case '[.x^]' in ([.*^\]) echo match;; (*) echo no match;; esac match $ case '[.xx^]' in ([.*^\]) echo match;; (*) echo no match;; esac match However, adding another [ to the pattern: [.*^[\] which should be: - the literal string [. followed by - the pattern notation special character * (i.e. any string) followed by - the literal string ^[] No longer matches: $ case '[.^[]' in ([.*^[\]) echo match;; (*) echo no match;; esac no match $ case '[.x^[]' in ([.*^[\]) echo match;; (*) echo no match;; esac no match $ case '[.xx^[]' in ([.*^[\]) echo match;; (*) echo no match;; esac no match Whereas, AFAIU POSIX, it should. This works, btw. in bash, but neither in busybox sh, nor klibc sh. Cheers, Chris. ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: possible wrong behaviour with patterns double [ with no closing ] 2022-01-17 3:23 possible wrong behaviour with patterns double [ with no closing ] Christoph Anton Mitterer @ 2022-01-18 6:18 ` Herbert Xu 2022-01-18 14:28 ` Christoph Anton Mitterer 2022-01-24 16:26 ` Christoph Anton Mitterer 0 siblings, 2 replies; 5+ messages in thread From: Herbert Xu @ 2022-01-18 6:18 UTC (permalink / raw) To: Christoph Anton Mitterer; +Cc: dash Christoph Anton Mitterer <calestyo@scientia.org> wrote: > > This works, btw. in bash, but neither in busybox sh, nor klibc sh. This happens only with fnmatch. So I would presume that it's a bug in glibc and you can take it up with them. Thanks, -- Email: Herbert Xu <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: possible wrong behaviour with patterns double [ with no closing ] 2022-01-18 6:18 ` Herbert Xu @ 2022-01-18 14:28 ` Christoph Anton Mitterer 2022-01-24 16:26 ` Christoph Anton Mitterer 1 sibling, 0 replies; 5+ messages in thread From: Christoph Anton Mitterer @ 2022-01-18 14:28 UTC (permalink / raw) To: Herbert Xu; +Cc: dash On Tue, 2022-01-18 at 17:18 +1100, Herbert Xu wrote: > This happens only with fnmatch. So I would presume that it's > a bug in glibc and you can take it up with them. Forwarded to: https://sourceware.org/bugzilla/show_bug.cgi?id=28792 Cheers, Chris. ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: possible wrong behaviour with patterns double [ with no closing ] 2022-01-18 6:18 ` Herbert Xu 2022-01-18 14:28 ` Christoph Anton Mitterer @ 2022-01-24 16:26 ` Christoph Anton Mitterer 2022-01-25 0:36 ` Herbert Xu 1 sibling, 1 reply; 5+ messages in thread From: Christoph Anton Mitterer @ 2022-01-24 16:26 UTC (permalink / raw) To: Herbert Xu; +Cc: dash On Tue, 2022-01-18 at 17:18 +1100, Herbert Xu wrote: > This happens only with fnmatch. So I would presume that it's > a bug in glibc and you can take it up with them. FYI: Was apparently fixed in git: https://sourceware.org/git/?p=glibc.git;a=commit;h=8442f0d966da5a9333e961af9e98b41aabdd9f1b Cheers, Chris. ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: possible wrong behaviour with patterns double [ with no closing ] 2022-01-24 16:26 ` Christoph Anton Mitterer @ 2022-01-25 0:36 ` Herbert Xu 0 siblings, 0 replies; 5+ messages in thread From: Herbert Xu @ 2022-01-25 0:36 UTC (permalink / raw) To: Christoph Anton Mitterer; +Cc: dash On Mon, Jan 24, 2022 at 05:26:16PM +0100, Christoph Anton Mitterer wrote: > On Tue, 2022-01-18 at 17:18 +1100, Herbert Xu wrote: > > This happens only with fnmatch. So I would presume that it's > > a bug in glibc and you can take it up with them. > > FYI: > > Was apparently fixed in git: > https://sourceware.org/git/?p=glibc.git;a=commit;h=8442f0d966da5a9333e961af9e98b41aabdd9f1b Thanks Chris! -- Email: Herbert Xu <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2022-01-25 3:34 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-01-17 3:23 possible wrong behaviour with patterns double [ with no closing ] Christoph Anton Mitterer 2022-01-18 6:18 ` Herbert Xu 2022-01-18 14:28 ` Christoph Anton Mitterer 2022-01-24 16:26 ` Christoph Anton Mitterer 2022-01-25 0:36 ` Herbert Xu
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