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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: TRAPDEBUG vs zsh -x
Date: Wed, 20 Apr 2022 16:55:54 -0700	[thread overview]
Message-ID: <CAH+w=7Ywp-8fciUvKFJaSnn5jstb10P-Auw+0F4Pxd9buzZ+eA@mail.gmail.com> (raw)
In-Reply-To: <CAMP9c5mQwVU4e7z9aHDx8g4vd9hRZuf+Zq3yMCLia6ewv8sQzA@mail.gmail.com>

On Wed, Apr 20, 2022 at 12:46 PM Zach Riggle <zachriggle@gmail.com> wrote:
> When using "zsh -x", we see all of the lines after they've been fully evaluated, but there's no way to add syntax highlighting sugar to these lines.

If you have a colorizing program that you want to use, you can do

# Silly example of colorizing
alias colorizing="grep --color '[A-Z]'"
exec 2>>(colorizing)

and the xtrace output will go through that.

> Are there any TRAPXXX functions which are passed the same text as "zsh -x" will emit (sans the $PS4 expansion).

No, there aren't.

You could play around with variations on this hack:

emulate zsh +x -c 'exec {stderr}>&2
 preexec() {
  integer in_preexec=1
  exec 2>>(colorizing)
  ((in_preexec)) || exec 2>>$stderr

  reply	other threads:[~2022-04-20 23:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-20 19:46 Zach Riggle
2022-04-20 23:55 ` Bart Schaefer [this message]
2022-04-21 18:42   ` Bart Schaefer

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