From: Bart Schaefer <schaefer@brasslantern.com>
To: zzapper <zsh@rayninfo.co.uk>
Cc: zsh-users@zsh.org
Subject: Re: Can I test if a parameter expansion has worked
Date: Thu, 15 Sep 2022 09:48:57 -0700 [thread overview]
Message-ID: <CAH+w=7Y43uaXB=ZUUHiM8mE4priPD2jACvnK9zCu3qH=QGvGGQ@mail.gmail.com> (raw)
In-Reply-To: <f93d2561-a8d8-c952-2aeb-8bcf43eef1cb@rayninfo.co.uk>
On Thu, Sep 15, 2022 at 12:34 AM zzapper <zsh@rayninfo.co.uk> wrote:
>
> print ${f/%(#m).[pjg][npi]e#[gf]/_s$MATCH}
> stuff.txt # expansion has obviously left the input unchanged but can I
> test for that???
In the general case, no, as PWS has already addressed.
In this specific case, tho, if you "unset MATCH" before doing the
substitution, you can test $+MATCH after.
next prev parent reply other threads:[~2022-09-15 16:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-14 10:03 zzapper
2022-09-14 18:36 ` Bart Schaefer
2022-09-15 0:08 ` Alex Satrapa
2022-09-15 7:34 ` zzapper
2022-09-15 8:24 ` Peter Stephenson
2022-09-15 8:38 ` zzapper
2022-09-15 16:48 ` Bart Schaefer [this message]
2022-09-20 7:14 ` david rayner
2022-09-16 0:41 ` Alex Satrapa
2022-09-20 12:49 ` Stephane Chazelas
2022-09-20 13:25 ` Stephane Chazelas
2022-09-20 13:31 ` Stephane Chazelas
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