From: Mikael Magnusson <mikachu@gmail.com>
To: Zach Riggle <zachriggle@gmail.com>
Cc: Zsh Users <zsh-users@zsh.org>
Subject: Re: Collapse a file path to the shortest representation
Date: Fri, 13 May 2022 20:03:54 +0200 [thread overview]
Message-ID: <CAHYJk3TizsDP7D9SVoOsOKGDsX6dv=vhMv2FRMY2LTrzz6YW3w@mail.gmail.com> (raw)
In-Reply-To: <CAMP9c5kFDdOK4PS2-prd4oxk69fkXCXstANkM4Skjg0Law0DCg@mail.gmail.com>
On 5/13/22, Zach Riggle <zachriggle@gmail.com> wrote:
> 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?
The D parameter expansion flag does this.
--
Mikael Magnusson
next prev parent reply other threads:[~2022-05-13 18:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-13 17:53 Zach Riggle
2022-05-13 18:03 ` Mikael Magnusson [this message]
2022-05-18 22:42 ` Zach Riggle
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAHYJk3TizsDP7D9SVoOsOKGDsX6dv=vhMv2FRMY2LTrzz6YW3w@mail.gmail.com' \
--to=mikachu@gmail.com \
--cc=zachriggle@gmail.com \
--cc=zsh-users@zsh.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/zsh/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).