From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-workers-return-37140-mason-zsh=primenet.com.au@zsh.org>
Received: (qmail 20705 invoked by alias); 18 Nov 2015 14:47:26 -0000
Mailing-List: contact zsh-workers-help@zsh.org; run by ezmlm
Precedence: bulk
X-No-Archive: yes
List-Id: Zsh Workers List <zsh-workers.zsh.org>
List-Post: <mailto:zsh-workers@zsh.org>
List-Help: <mailto:zsh-workers-help@zsh.org>
X-Seq: 37140
Received: (qmail 8498 invoked from network); 18 Nov 2015 14:47:25 -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-f79026d00000418a-8b-564c8f79e76a
Date: Wed, 18 Nov 2015 14:47:17 +0000
From: Peter Stephenson <p.stephenson@samsung.com>
To: Peter Stephenson <p.stephenson@samsung.com>
Cc: Klaus+zsh@Ethgen.ch, zsh-workers@zsh.org
Subject: Re: Undocumented construct <<(
Message-id: <20151118144717.0b129f59@pwslap01u.europe.root.pri>
In-reply-to: <20151118144147.116022ee@pwslap01u.europe.root.pri>
References: <20151118142305.GB10880@ikki.ethgen.ch>
 <20151118144147.116022ee@pwslap01u.europe.root.pri>
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+NgFrrBLMWRmVeSWpSXmKPExsVy+t/xa7qV/T5hBt9vGlg8O/WA1eJg80Mm
	ByaPL03fmTxWHfzAFMAUxWWTkpqTWZZapG+XwJVxsPMOe8FmroopB+cwNTAe5+hi5OSQEDCR
	mL7wJyOELSZx4d56ti5GLg4hgaWMEstm72CEcBqYJF6t7mIGqRIS2MYocet/FYjNIqAqsX35
	IbBuNgFDiambZoPZIgL6EmtX9oDVMwvoSPxd8JAJxBYWUJc4OOcHWJxXwF5ixfO/7CA2p4CD
	RMezf0A1HEDzMyUObZQACfMDjbn69xMTxHH2EjOvnGGEaBWU+DH5HgvEeC2JzduaWCFseYnN
	a95CnakucePubvYJjMKzkLTMQtIyC0nLAkbmVYyiqaXJBcVJ6bmGesWJucWleel6yfm5mxgh
	4f1lB+PiY1aHGAU4GJV4eBMWe4cJsSaWFVfmHmKU4GBWEuHVrvYJE+JNSaysSi3Kjy8qzUkt
	PsQozcGiJM47d9f7ECGB9MSS1OzU1ILUIpgsEwenVANjcZhjj63HLKcvDSc9v2zJ0F+lw5A8
	aZdeXhGj/+LzJYIy8lUpC5iKJonpxHS/Wa/s3HUzaM6pyVO/6ggmMQQtOBeyqHLyks03AwRD
	ptjbC32NfM+8hWXlxmlT7V50MJQw3/hcFvyCK+fLzH0TDoZuVkyZfu3a3c3vQ3n2v169L+GV
	0HWV+gW3lFiKMxINtZiLihMBzy81g2sCAAA=

On Wed, 18 Nov 2015 14:41:47 +0000
Peter Stephenson <p.stephenson@samsung.com> wrote:

> On Wed, 18 Nov 2015 15:23:08 +0100
> Klaus Ethgen <Klaus+zsh@Ethgen.ch> wrote:
> > I searched now pretty long for a undocumented construct <<(list).
> 
> What you're looking at is a normal < followed by a <(list),
> i.e. redirect stdin from <(list).

and while I'm sending more emails than necessary, here's a note in the
process substitution documentation.

pws

diff --git a/Doc/Zsh/expn.yo b/Doc/Zsh/expn.yo
index 123722e..564c70d 100644
--- a/Doc/Zsh/expn.yo
+++ b/Doc/Zsh/expn.yo
@@ -410,6 +410,12 @@ are only expanded when first parsing command or assignment arguments.
 Process substitutions may be used following redirection operators; in this
 case, the substitution must appear with no trailing string.
 
+Note that `tt(<<LPAR())var(list)tt(RPAR())' is not a special syntax; it
+is equivalent to `tt(< <LPAR())var(list)tt(RPAR())', redirecting
+standard input from the result of process substitution.  Hence all
+the following documentation applies.  The second form (with the space)
+is recommended for clarity.
+
 In the case of the tt(<) or tt(>) forms, the shell runs the commands in
 var(list) as a subprocess of the job executing the shell command line.
 If the system supports the tt(/dev/fd)