From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-users-return-21634-mason-zsh=primenet.com.au@zsh.org>
Received: (qmail 27172 invoked by alias); 9 Jun 2016 16:44:44 -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: 21634
Received: (qmail 26872 invoked from network); 9 Jun 2016 16:44:43 -0000
X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on f.primenet.com.au
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM,
	T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.1
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=mime-version:from:date:message-id:subject:to;
        bh=vu0FbvlDZzQbx/n7ipm0XfKpdo9tsT7lKWsrWc+XMO0=;
        b=XfM3CJ+641mFxEibIQJ//iZbnF8TnJzU94/zNonmnvo4eDKKP26PB9dNRIA2sNLCHO
         0HA/Fu0/vpLJLoKGC/EUtRprzYapSx5TrJj45eGMy5gia6gi60jBK/MKcHog4fKakRlN
         Rks4GUfv4tWXEZYU+ge/vgCv8OwmmINdx7x3bM7d59UPQVddV9J6KFufSsb8umbvHBpC
         4hd7Pj+mMjhRkHrKBEvLI026j56ur64wVSm2F/cWNsjC5Bhqd7LI+yX9GO48Dd3rZR1D
         l4lwmwx+/UhZZ5RVatGitHd5QOXAs1Ts6QJoHNC+d/R9yomp8av84SI7Jm8r7Ke8ZN3M
         LAww==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20130820;
        h=x-gm-message-state:mime-version:from:date:message-id:subject:to;
        bh=vu0FbvlDZzQbx/n7ipm0XfKpdo9tsT7lKWsrWc+XMO0=;
        b=Tsw0qv/V2eboYE64VD69bC42yxLWEnw+j6ov34dmk5/I6Bq3SpPZoHZReI4ec2rTV+
         m73gTQcHvHrCheZd83XseBh2tKKxDpRR9xyiIHKbc3m4zF+WJp//GDypwqMXLndylMQj
         aPHXISjLb+mRTXIan5LkrzVC7cbSPeqyzrEQT7sTgwAW33yHBrwtzQCCFW1OueZaSd3S
         roEcdL+nEETObtoijqHrvlAi9HVSNXLYqFohW7vqZG7k0IuUoiE44W/RfqWuFGPz5w2z
         xFQ3/JJxoYikjUN9vQ70I8r3nao7CeF0xM2Ue62Y7whVcxl95ilKsRb5BpPPSLkHgiji
         AzcA==
X-Gm-Message-State: ALyK8tIE/AFMFPGbMdC7hzcaQ0oOToebPDq91FBez+ieFe4bafYCQC01EAwGUkIZzRG5JoYdJ7y5w75yksdznQ==
X-Received: by 10.140.19.5 with SMTP id 5mr10499723qgg.98.1465490680607; Thu,
 09 Jun 2016 09:44:40 -0700 (PDT)
MIME-Version: 1.0
From: Sebastian Gniazdowski <sgniazdowski@gmail.com>
Date: Thu, 9 Jun 2016 18:44:21 +0200
Message-ID: <CAKc7PVB4y+dw+0Ox76_YTrzwT1C9sRp2=iX1-JkbPQEUQqe77w@mail.gmail.com>
Subject: Can $_ substitute $0 when nofunctionargzero
To: Zsh Users <zsh-users@zsh.org>
Content-Type: text/plain; charset=UTF-8

Hello,
this (one line):
mkdir -p pathcomponent; echo 'echo "0: $0, _: $_";' >
pathcomponent/sourceme; setopt nofunctionargzero; source
pathcomponent/sourceme

outputs:
0: /bin/zsh, _: pathcomponent/sourceme

So it looks like $_ can take back what nofunctionargzero takes away:
path to sourced file. Normally $0 is used in many plugins, making them
incompatible with nofunctionargzero. Z-sy-h has an explicit check for
this and does:

  echo "zsh-syntax-highlighting: error: not compatible with
NO_FUNCTION_ARGZERO" >&2

Can $_ take over? This would mean such scripts can be compatible with
emulate sh and ksh.

Best regards,
Sebastian Gniazdowski