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From: zzapper <zsh@rayninfo.co.uk>
To: zsh-users@zsh.org
Subject: Re: no wildcards/anchors allowed in pattern? ${f:s/pattern/_s&}
Date: Thu, 8 Sep 2022 14:57:41 +0100	[thread overview]
Message-ID: <475d31cf-5a3f-a96d-2411-85dbcce03e17@rayninfo.co.uk> (raw)
In-Reply-To: <339811895.270157.1662643003818@mail.virginmedia.com>


On 08/09/2022 14:16, Peter Stephenson wrote:
> Sorry, didn't go to the list, agian...
>
>> On 08/09/2022 12:56 zzapper <zsh@rayninfo.co.uk> wrote:
>> This works for me and allows me to use memory '&' but I'm frustrated
>> that I don't seem to be able to use anchors / wildcards etc in the pattern
>>
>> f=dog.png ;echo $f '->' ${f:s/./_s&}
>> dog.png -> dog_s.png
>>
>> the alternative syntax allows pattern to be a regexp but has no regexp
>> memory
>>
>>
>> f=dog.png.png ;echo $f '->' ${f/%.png/_s.png}
>> dog.png.png -> dog.png_s.png
> The pattern expansion case has this syntax:
>
> f=stuff.png
> print ${foo/%(#m).png/_$MATCH}
> stuff_.png
>
> Look up the "m" globbing flag.
>
> pws
>
thanks this does what I require accepts *.{jpg,jpeg,png,gif}

f=stuff.jpg; print ${f/%(#m).[pjg][npi]e#[gf]/_s$MATCH}

stuff_s.jpg


zzapper




      reply	other threads:[~2022-09-08 13:58 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-08 11:56 zzapper
     [not found] ` <826663136.300323.1662640732618@mail.virginmedia.com>
2022-09-08 13:16   ` Peter Stephenson
2022-09-08 13:57     ` zzapper [this message]

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