From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-users-return-20708-mason-zsh=primenet.com.au@zsh.org>
Received: (qmail 7674 invoked by alias); 8 Oct 2015 09:33:28 -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: 20708
Received: (qmail 9947 invoked from network); 8 Oct 2015 09:33:26 -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 autolearn=ham
	autolearn_force=no version=3.4.0
X-AuditID: cbfec7f4-f79c56d0000012ee-28-561636066af1
Date: Thu, 08 Oct 2015 10:23:15 +0100
From: Peter Stephenson <p.stephenson@samsung.com>
To: zsh-users@zsh.org
Subject: Re: Matching beginning and end of word
Message-id: <20151008102315.0136766a@pwslap01u.europe.root.pri>
In-reply-to:
 <CAKc7PVCzoPWBkqYYxE85tndwWT9nY35QSMdg9WPv7A3ofVDuoA@mail.gmail.com>
References: <CAKc7PVCzoPWBkqYYxE85tndwWT9nY35QSMdg9WPv7A3ofVDuoA@mail.gmail.com>
Organization: Samsung Cambridge Solution Centre
X-Mailer: Claws Mail 3.7.9 (GTK+ 2.22.0; i386-redhat-linux-gnu)
MIME-version: 1.0
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7bit
X-Brightmail-Tracker:
 H4sIAAAAAAAAA+NgFjrMLMWRmVeSWpSXmKPExsVy+t/xa7psZmJhBvf7lSx2nFzJ6MDoserg
	B6YAxigum5TUnMyy1CJ9uwSujDMNe9gKXrFXXDpk2cA4ja2LkZNDQsBE4t/7u4wQtpjEhXvr
	geJcHEICSxkl1n1bzAThTGOS2DrrCyOEs5VR4kTrBlaQFhYBVYkVn9rYQWw2AUOJqZtmg40S
	ERCVWL5iM1hcWEBfYtOhrWD1vAL2ElsXPAKr4RQIlvi8fiMLiC0kECCx70oDWD0/UP3Vv5+Y
	IE6yl5h55QwjRK+gxI/J98DqmQW0JDZva2KFsOUlNq95ywwxR13ixt3d7BMYhWYhaZmFpGUW
	kpYFjMyrGEVTS5MLipPScw31ihNzi0vz0vWS83M3MUKC9ssOxsXHrA4xCnAwKvHw/jAWCRNi
	TSwrrsw9xCjBwawkwrtMWixMiDclsbIqtSg/vqg0J7X4EKM0B4uSOO/cXe9DhATSE0tSs1NT
	C1KLYLJMHJxSDYxS4bHlYjVL/St5a194yeVeE5tyqoDtcJht/3FWkaBz2krSvI/i5KqfPJ5d
	8D/Rordc+4K++j/uptlLGJ5NtvOaH8idsWDHp90zmzubbl/mnmQ4x6Nu0k7Xj1vP6XgY3vse
	Ge18IZB5a9w2q/CQSRmt26fEV313KulScj16ZIF5Tt6O4jc6AUosxRmJhlrMRcWJADElXL9W	AgAA

On Thu, 8 Oct 2015 09:51:44 +0200
Sebastian Gniazdowski <sgniazdowski@gmail.com> wrote:
> in vim \< and \> match agains beginning and end of word. They work
> like ^ and $ but for words, not lines. How to obtain this in Zsh? So
> that in string like "abc_cd" the "cd" would not be matched, and in
> "abc cd" only "cd" would be matched.

So by "beginning of word", you mean "something that is either not
preceded by anything, or is preceded by a non-word character"?  (And
similarly for end.)

We do have the special chracter range [[:WORD:]].  So I think you need
to check both possibilities, using the (#s) for start (or (#e) for end)
that Bart pointed out yesterday.

% [[ "foo bar" = *([^[:WORD:]]|(#s))bar* ]] && print yes
yes
% [[ "bar foo" = *([^[:WORD:]]|(#s))bar* ]] && print yes
yes
% [[ "obar foo" = *([^[:WORD:]]|(#s))bar* ]] || print no
no

Note [[:WORD:]] is a moving target, as determined by $WORDCHARS.  See
manzshexpn.

End of word left as an exercise.

pws