From: Bart Schaefer <schaefer@brasslantern.com>
To: Zsh Users <zsh-users@sunsite.dk>
Subject: Re: Expanding when matching
Date: Sat, 24 Apr 2004 04:14:14 +0000 [thread overview]
Message-ID: <1040424041414.ZM17671@candle.brasslantern.com> (raw)
In-Reply-To: <20040423211540.GA1821@DervishD>
On Apr 23, 11:15pm, DervishD wrote:
}
} $ print ${testvar/#This*%/Replaced}
} This is my test var
}
} The example doesn't make much sense, but it illustrates what I
} mean. What I'm doing wrong? What am I not understanding?
I know Wayne has already answered, but:
The # and % tokens in ${var/pat/rep} are not analogous to regex ^ and $.
Rather, they're analogous to ${var#pat} and ${var%pat}. Does that help?
For the analogs of ^ and $, you need (#s) and (#e) [and extendedglob].
$ print ${testvar/(#s)This*var(#e)/Replaced}
} replace some numbers in one text that should be consecutive but are
} not, and they are interspersed with arbitrary text. What I know about
} them is that they are alone in a line, so they match certain regex,
setopt extendedglob
c=0; while read line; do print ${${line#<->(#e)}:-$[++c]}; done
(Replacing <-> with your pattern.)
next prev parent reply other threads:[~2004-04-24 4:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-23 21:15 DervishD
2004-04-23 22:05 ` Wayne Davison
2004-04-24 7:48 ` DervishD
2004-04-24 4:14 ` Bart Schaefer [this message]
2004-04-24 7:57 ` DervishD
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