From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-users-return-20739-mason-zsh=primenet.com.au@zsh.org>
Received: (qmail 26333 invoked by alias); 12 Oct 2015 02:37:57 -0000
Mailing-List: contact zsh-users-help@zsh.org; run by ezmlm
Precedence: bulk
X-No-Archive: yes
List-Id: Zsh Users List <zsh-users.zsh.org>
List-Post: <mailto:zsh-users@zsh.org>
List-Help: <mailto:zsh-users-help@zsh.org>
X-Seq: 20739
Received: (qmail 8645 invoked from network); 12 Oct 2015 02:37:54 -0000
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on f.primenet.com.au
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,T_DKIM_INVALID
	autolearn=ham autolearn_force=no version=3.4.0
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=
	daniel.shahaf.name; h=cc:content-type:date:from:in-reply-to
	:message-id:mime-version:references:subject:to:x-sasl-enc
	:x-sasl-enc; s=mesmtp; bh=957N2epDJXIRBXiwx58E/88prqE=; b=SZw08I
	ChSBSAY8goTf30aQ+YddS//UepdVapxd4jmeYJ3lOU/vp66ijDkrywBDDYNQLsQ3
	akV//y1rvFLWAMrWo6KyRhPolvnh5XLccnS4GLfHxZOcMkVYVZnJEb3zLA+z17YB
	pvvolHjH9Pge73Ok09uc6EIiLr61k4veMrYSw=
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=
	messagingengine.com; h=cc:content-type:date:from:in-reply-to
	:message-id:mime-version:references:subject:to:x-sasl-enc
	:x-sasl-enc; s=smtpout; bh=957N2epDJXIRBXiwx58E/88prqE=; b=b20zB
	druWkuKIdBKPigouUOpar87XWDEWkn02ROG+TzP9CfdvQq3YMaITr1fL85ndttM8
	pnFTyGwe5eJpil7RnhGaDskMGWVv5apEDvtwV7kLRblchQVxLM8Gk0oAQ4sJYxM7
	xYYm6icZHCdIvk+Agkqq2dwRmMPIMc/caI7TmA=
X-Sasl-enc: 3Lm9CbrLKTu75n86GAde1ORuLMYY7Pd785wGqZPmb/sU 1444616799
Date: Mon, 12 Oct 2015 02:26:37 +0000
From: Daniel Shahaf <d.s@daniel.shahaf.name>
To: Ray Andrews <rayandrews@eastlink.ca>
Cc: Zsh Users <zsh-users@zsh.org>
Subject: Re: subsitutions and beginning of lines.
Message-ID: <20151012022637.GB2464@tarsus.local2>
References: <561AB49A.4060801@eastlink.ca>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <561AB49A.4060801@eastlink.ca>
User-Agent: Mutt/1.5.21 (2010-09-15)

Ray Andrews wrote on Sun, Oct 11, 2015 at 12:12:26 -0700:
> ${var// /}
> 
> When doing that sort of substitution, is is possible to test for newlines?
> I'm playing with a function that grabs history and I'm trying to strip
> off the leading numbers.

If you're trying to parse something like this:

    % history | tail -2
     1004  echo foo
     1005  echo bar

You could avoid parsing the line numbers (and unescaping the commands)
altogether by accessing the history differently:

    % print -r - $history[1004]
    echo foo