From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-user <zsh-users@zsh.org>
Subject: Re: (r) flag on scalar
Date: Sun, 8 Mar 2015 19:56:42 -0700 [thread overview]
Message-ID: <150308195642.ZM11614@torch.brasslantern.com> (raw)
In-Reply-To: <20150308233821.GB2746@localhost.localdomain>
On Mar 9, 7:38am, Han Pingtian wrote:
} Subject: (r) flag on scalar
}
} I think below command line should give result "bc", but:
}
} localhost% s=abcdefg
} localhost% print $s[(r)bc]
} b
} localhost%
}
} Looks like this isn't intuitional.
$s[(r)bc] is a single index, so it's the index where the first match for
"bc" begins.
$s[(r)bc,(r)ef] is a range of indices, so it begins where "bc" begins and
ends where "ef" ends.
The only thing not quite intuitive about this is that a wildcard (either
* or with extendedglob ?# ) at the end of the ending patterrn is not
considered part of the match for (r) but is part of the match for (R).
PWS's latest doc tweak still doesn't explicitly describe that.
next prev parent reply other threads:[~2015-03-09 2:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-08 23:38 Han Pingtian
2015-03-09 2:56 ` Bart Schaefer [this message]
2015-03-09 9:08 ` Peter Stephenson
2015-03-09 18:45 ` Mikael Magnusson
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