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Re: Possible to match string supporting backslash quoting?

X-seq: zsh-users 28828
From: Stephane Chazelas <stephane@xxxxxxxxxxxx>
To: Sebastian Gniazdowski <sgniazdowski@xxxxxxxxx>, Zsh Users <zsh-users@xxxxxxx>
Subject: Re: Possible to match string supporting backslash quoting?
Date: Fri, 27 Jan 2023 13:35:35 +0000
Archived-at: <https://zsh.org/users/28828>
In-reply-to: <20230127133003.spbcjjecye6lz5gp@chazelas.org>
List-id: <zsh-users.zsh.org>
Mail-followup-to: Sebastian Gniazdowski <sgniazdowski@xxxxxxxxx>, Zsh Users <zsh-users@xxxxxxx>
References: <CAKc7PVBYyE=m2eyRue7T25_+8WKEu2RB4VRikAidiq=jxnmFEw@mail.gmail.com> <20230127133003.spbcjjecye6lz5gp@chazelas.org>

2023-01-27 13:30:03 +0000, Stephane Chazelas:
[...]
> to match a quoted
> string while handling  backslash escaping, in ERE, you do:
> 
> "(\\.|[^\\"])*"
> 
> Whose zsh -o extendedglob equivalent would be:
> 
> "(\\?|[^\\"])#"
[...]

For instance, to requote the double-quoted strings with single
quotes:

~$ text='"quoted\\" not "quoted\"quoted" not'
~$ pattern='"(\\?|[^\\"])#"'
~$ print -r -- ${text//(#m)$~pattern/${(qq)${(Q)MATCH}}}
'quoted\' not 'quoted"quoted' not

-- 
Stephane

References:
- Possible to match string supporting backslash quoting?
  - From: Sebastian Gniazdowski
- Re: Possible to match string supporting backslash quoting?
  - From: Stephane Chazelas

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