From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-users@zsh.org
Subject: Re: realpath(3), symlinks, '..' components, and the ':A' word modifier
Date: Thu, 7 Jul 2016 10:20:31 -0700 [thread overview]
Message-ID: <160707102031.ZM23611@torch.brasslantern.com> (raw)
In-Reply-To: <20160707020022.GA6364@tarsus.local2>
On Jul 7, 2:00am, Daniel Shahaf wrote:
}
} To everyone who asked about compatibility: under the existing semantics
} of :A, "$foo" and "$foo:A" might denote different files.
But that implies that "$foo" and "$foo:a" might also denote different
files, so why is *that* a useful transformation?
} So, bottom line... it seems the consensus on both lists is not to risk
} breaking compatibility here, and to add another :x modifier letter
} instead (as suggested by Roland here and by pws/Bart in workers/38798 et
} seq).
There's no letter to use that won't in some way be confuse-able with a
parameter expansion flag, so here are some ideas:
:L - mnemonic "link" - corresponds to "ls -L"
:R - mnemonic "real" - think of realpath()
:P - mnemonic "path" - the other half of realpath(), and also in a
certain way comparable to the (P) parameter
flag in that it interprets the path name as
a further path name and yields the file at
the other path
next prev parent reply other threads:[~2016-07-07 17:20 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-05 4:57 Daniel Shahaf
2016-07-05 12:54 ` Roland Eggner
2016-07-05 13:24 ` Vadim Zeitlin
2016-07-06 15:15 ` Filipe
[not found] ` <20160705125430.GA29959__3886.85245202414$1467723835$gmane$org@mobil.systemanalysen.net>
2016-07-07 2:00 ` Daniel Shahaf
2016-07-07 17:20 ` Bart Schaefer [this message]
[not found] ` <20160705093321.79d7c4bc@pwslap01u.europe.root.pri>
2016-07-12 7:58 ` Next release (5.3) Roman Neuhauser
2016-07-12 16:40 ` Bart Schaefer
2016-07-12 20:23 ` Oliver Kiddle
2016-07-13 2:56 ` Filipe Silva
2016-07-13 4:45 ` Bart Schaefer
2016-07-13 5:09 ` Filipe Silva
2016-07-13 9:32 ` Peter Stephenson
2016-07-13 9:59 ` Peter Stephenson
2016-07-13 16:35 ` Bart Schaefer
2016-07-13 16:59 ` Peter Stephenson
2016-07-13 17:50 ` Bart Schaefer
[not found] ` <20160713105910.2b33701c__17004.846657119$1468404086$gmane$org@pwslap01u.europe.root.pri>
2016-07-17 14:59 ` Daniel Shahaf
[not found] ` <20160713103233.14bfd05a__26126.9551389434$1468402471$gmane$org@pwslap01u.europe.root.pri>
2016-07-17 14:59 ` [PATCH] improve :A docs (was: Re: Next release (5.3)) Daniel Shahaf
[not found] ` <20160717145931.GA4859__10178.6871244714$1468767679$gmane$org@tarsus.local2>
2016-07-20 6:54 ` Daniel Shahaf
2016-07-13 7:41 ` Next release (5.3) Roman Neuhauser
2016-07-13 17:36 ` Bart Schaefer
2016-07-20 13:05 ` Vincent Lefevre
2016-07-20 14:00 ` Vincent Lefevre
2016-07-20 14:15 ` Peter Stephenson
2016-07-20 14:19 ` Peter Stephenson
[not found] ` <20160720151517.6a833f2c__37436.2382958227$1469024822$gmane$org@pwslap01u.europe.root.pri>
2016-07-21 5:40 ` Daniel Shahaf
2016-07-21 9:19 ` Peter Stephenson
2016-07-21 3:50 ` Bart Schaefer
[not found] ` <160712094017.ZM17395__33553.1437922784$1468341719$gmane$org@torch.brasslantern.com>
2016-07-13 5:00 ` Daniel Shahaf
[not found] ` <20160712075849.GG1537__20664.8654224866$1468310440$gmane$org@isis.sigpipe.cz>
2016-07-13 5:01 ` Daniel Shahaf
2016-07-20 12:44 ` realpath(3), symlinks, '..' components, and the ':A' word modifier Vincent Lefevre
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