From: Zach Riggle <zachriggle@gmail.com>
To: Zsh Users <zsh-users@zsh.org>
Subject: Collapse a file path to the shortest representation
Date: Fri, 13 May 2022 12:53:37 -0500 [thread overview]
Message-ID: <CAMP9c5kFDdOK4PS2-prd4oxk69fkXCXstANkM4Skjg0Law0DCg@mail.gmail.com> (raw)
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Is there a ZSH standard way to collapse a file path to its shortest
representation that would be idempotent per Chapter 14.7?
For example, one might
echo "$filepath" | sed -E "s|$HOME/?|~/|"
echo "$filepath" | sed -E "s|$HOME/?|\$HOME/|"
In order to turn
/home/username/bar/baz → ~/bar/baz
/home/username/bar/baz → $HOME/bar/baz
To achieve this effect.
From the documentation, "14.7 Filename Expansion" has a lot of ways that
paths can be expanded, including...
14.7.2
... the path is checked to see if it has a named directory as its prefix.
If so, then the prefix portion is replaced with a ‘~’ followed by the name
of the directory ....
Is there a standardized way to access this expansion with e.g.
/path/to/somedir → ~SOMEDIR/foo?
I expect this can be implemented manually by parsing the output of "hash
-d" or similar, but I figured it was worth asking if there's an easy
interface to this.
I'm not concerned as much about "14.7.1 Dynamic named directories" but for
completeness it would be neat.
*Zach Riggle*
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next reply other threads:[~2022-05-13 17:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-13 17:53 Zach Riggle [this message]
2022-05-13 18:03 ` Mikael Magnusson
2022-05-18 22:42 ` Zach Riggle
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