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From: Bart Schaefer <schaefer@brasslantern.com>
To: Zach Riggle <zachriggle@gmail.com>
Cc: Zsh Users <zsh-users@zsh.org>
Subject: Re: Accessing the evaluated expression which caused an error
Date: Sat, 4 Sep 2021 19:08:07 -0700	[thread overview]
Message-ID: <CAH+w=7a7FsYcm6bGaYn+E6hXZy=O2-_6oPnNU=1KG_FMvSFHbA@mail.gmail.com> (raw)
In-Reply-To: <CAMP9c5ngXWo4U2cjWeQtBr5+-tjA2gBu=Yi=k1STNkRidW1QAQ@mail.gmail.com>

On Sat, Sep 4, 2021 at 5:27 PM Zach Riggle <zachriggle@gmail.com> wrote:
> Will the (e) actually evaluate the parameters and execute them again? Or just a single layer of expansion?

Well ... it only does a single layer, but the string value of
ZSH_DEBUG_CMD is not itself specially quoted, so you only want to
apply (e) to cases like "${cmd[@]}" where you've deliberately added an
extra layer of quoting and want to peek inside it.

Then of course you probably want to put the quoting back again ... I
guess it ends up something like:

  if function {
    setopt localoptions extendedglob
    [[ $ZSH_DEBUG_CMD = \"[^\"](#c1,)\" ]]
  then ZSH_DEBUG_CMD=${(@q-)${(z)${(e)${(Q)ZSH_DEBUG_CMD}}}}
  print -r -- $ZSH_DEBUG_CMD

      parent reply	other threads:[~2021-09-05  2:09 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-03  1:42 Zach Riggle
2021-09-03 17:14 ` Bart Schaefer
2021-09-03 17:38   ` Zach Riggle
2021-09-04 20:08     ` Bart Schaefer
2021-09-05  0:26       ` Zach Riggle
2021-09-05  1:44         ` Lawrence Velázquez
2021-09-05  2:08         ` Bart Schaefer [this message]

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