Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > gnu.bash.bug > #14912

Re: should `local' create local variables when they exist in the tempenv?

Path csiph.com!xmission!news.snarked.org!news.linkpendium.com!news.linkpendium.com!panix!usenet.stanford.edu!not-for-mail
From Chet Ramey <chet.ramey@case.edu>
Newsgroups gnu.bash.bug
Subject Re: should `local' create local variables when they exist in the tempenv?
Date Thu, 13 Dec 2018 08:52:18 -0500
Organization ITS, Case Western Reserve University
Lines 26
Approved bug-bash@gnu.org
Message-ID <mailman.5673.1544709151.1284.bug-bash@gnu.org> (permalink)
References <CAMu=Brq68iEs5AEXJd+aBdM77qtZzZK1KKk7dtkDu0QA=K7beA@mail.gmail.com>
Reply-To chet.ramey@case.edu
NNTP-Posting-Host lists.gnu.org
Mime-Version 1.0
Content-Type text/plain; charset=utf-8
Content-Transfer-Encoding 7bit
X-Trace usenet.stanford.edu 1544709152 25003 208.118.235.17 (13 Dec 2018 13:52:32 GMT)
X-Complaints-To action@cs.stanford.edu
Cc chet.ramey@case.edu
To Grisha Levit <grishalevit@gmail.com>, bug-bash <bug-bash@gnu.org>
Envelope-to bug-bash@gnu.org
X-Google-DKIM-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:reply-to:cc:subject:to:references:from:openpgp :autocrypt:organization:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=KuNbFCkO0UJhoGrCUBBNVSfBgsMPOzRDMOiP8Y0awR8=; b=mA4lZdG/iatIjHqYsjew03xxosh6hB2R3I2FPnd/66K5iVmDX1pHH67caK7WWq0j0Q nX3xIURX9qitNYtN6buBn+mR+cUrhWBl9Q+uEWLgRUJnVErsrH33MsdkGLgaCAAfnOP1 NfgxDGBttDaiIZ1SxcdGJ09dgKxZKdb2p6RMtOPgHJss5NaLfHvBHHLIGd11giU1UmBw yxgrCi+K3cVi0BwVI9aTbAvedUzaOmptKyxSMy9QSE3fOV+kd6udXrS5jbr9iHFi6sos jgqmyDsRYztkDlIalroyDuHNwJkaEKj+OImV3PL/x+LbB2pDF+uNQ7UhqLwwLkMmb+Cm Kqcw==
X-Gm-Message-State AA+aEWZPkaJbkYcSo9gZgKGqFHoJElNXrZ3xP2EumK7mV8l4zy0YN+EW 1XDQdBKQS5extYpag1o+QlW5U4SIMFVFWkrHfOQtU2xit4kNyQ7KUacGqIVGXc12JSKKESFqrOZ NUA4IM0Ol5DM=
X-Received by 2002:a24:2208:: with SMTP id o8mr9225634ito.23.1544709141091; Thu, 13 Dec 2018 05:52:21 -0800 (PST)
X-Google-Smtp-Source AFSGD/VW5BqMZc7Z+oO1exk83AOIOyWe4hBQVoKrExLzoGcCrwhBYvXx2t2dLLCTfDAyMnGvElJOEA==
X-Received by 2002:a24:2208:: with SMTP id o8mr9225619ito.23.1544709140854; Thu, 13 Dec 2018 05:52:20 -0800 (PST)
Openpgp preference=signencrypt
Autocrypt addr=chet.ramey@case.edu; prefer-encrypt=mutual; keydata= xsDiBEEOsGwRBACFa0A1oa71HSZLWxAx0svXzhOZNQZOzqHmSuGOG92jIpQpr8DpvgRh40Yp AwdcXb8QG1J5yGAKeevNE1zCFaA725vGSdHUyypHouV0xoWwukYO6qlyyX+2BZU+okBUqoWQ koWxiYaCSfzB2Ln7pmdys1fJhcgBKf3VjWCjd2XJTwCgoFJOwyBFJdugjfwjSoRSwDOIMf0D /iQKqlWhIO1LGpMrGX0il0/x4zj0NAcSwAk7LaPZbN4UPjn5pqGEHBlf1+xDDQCkAoZ/VqES GZragl4VqJfxBr29Ag0UDvNbUbXoxQsARdero1M8GiAIRc50hj7HXFoERwenbNDJL86GPLAQ OTGOCa4W2o29nFfFjQrsrrYHzVtyA/9oyKvTeEMJ7NA3VJdWcmn7gOu0FxEmSNhSoV1T4vP2 1Wf7f5niCCRKQLNyUy0wEApQi4tSysdz+AbgAc0b/bHYVzIf2uO2lIEZQNNt+3g2bmXgloWm W5fsm/di50Gm1l1Na63d3RZ00SeFQos6WEwLUHEB0yp6KXluXLLIZitEJM0aQ2hldCBSYW1l eSA8Y2hldEBjd3J1LmVkdT7CYQQTEQIAIQIbAwYLCQgHAwIDFQIDAxYCAQIeAQIXgAUCQ+La kQIZAQAKCRC7WGnwZOp0q9rGAJ4sRGLmlF8klZTH75z7jyQScpU6aACeNMahjWIhumt4u96d 9mdMJqlabVnOwE0EQQ6wbxAEAJCukwDigRDPhAuI+lf+6P64lWanIFOXIndqhvU13cDbQ/Wt 5LwPzm2QTvd7F+fcHOgZ8KOFScbDpjJaRqwIybMTcIN0B2pBLX/C10W1aY+cUrXZgXUGVISE MmpaP9v02auToo7XXVEHC+XLO9IU7/xaU98FL69l6/K4xeNSBRM/AAMHA/wNAmRBpcyK0+Vg gZ5esQaIP/LyolAm2qwcmrd3dZi+g24s7yjV0EUwvRP7xHRDQFgkAo6++QbuecU/J90lxrVn QwucZmfz9zgWDkT/MpfB/CNRSKLFjhYq2yHmHWT6vEjw9Ry/hF6Pc0oh1a62USdfaKAiim0n VxxQmPmiRvtCmcJJBBgRAgAJBQJBDrBvAhsMAAoJELtYafBk6nSr43AAn2ZZFQg8Gs/zUzvX Mt7evaFqVTzcAJ0cHtKpP1i/4H4R9+OsYeQdxxWxTQ==
User-Agent Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:52.0) Gecko/20100101 Thunderbird/52.9.1
In-Reply-To <CAMu=Brq68iEs5AEXJd+aBdM77qtZzZK1KKk7dtkDu0QA=K7beA@mail.gmail.com>
Content-Language en-US
X-Junkmail-Status score=9/90, host=mpv3-2015.case.edu
X-Junkmail-PrAS-Raw score=9/90, refid=2.7.2:2018.12.13.124216:17:9.975, ip=, rules=__YOUTUBE_RCVD, __X_GOOGLE_DKIM_SIGNATURE, __HAS_REPLYTO, __HAS_CC_HDR, __SUBJ_REPLY, __BOUNCE_CHALLENGE_SUBJ, __BOUNCE_NDR_SUBJ_EXEMPT, __TO_MALFORMED_2, __TO_NAME, __TO_NAME_DIFF_FROM_ACC, __REFERENCES, __HAS_FROM, FROM_EDU_TLD, __HAS_MSGID, __SANE_MSGID, DATE_TZ_NA, __USER_AGENT, __MOZILLA_USER_AGENT, __MIME_VERSION, __IN_REP_TO, __CT, __CT_TEXT_PLAIN, __CTE, __REPLYTO_SAMEAS_FROM_ADDY, __REPLYTO_SAMEAS_FROM_ACC, __FROM_DOMAIN_IN_ANY_CC1, __FROM_DOMAIN_IN_ANY_CC2, __REPLYTO_SAMEAS_FROM_DOMAIN, __ANY_URI, __URI_WITH_PATH, __URI_NO_WWW, __CP_URI_IN_BODY, __FRAUD_MONEY_CURRENCY_DOLLAR, __SUBJ_ALPHA_NEGATE, __URI_IN_BODY, __URI_NOT_IMG, __FORWARDED_MSG, __NO_HTML_TAG_RAW, BODYTEXTP_SIZE_3000_LESS, BODY_SIZE_900_999, __MIME_TEXT_P1, __MIME_TEXT_ONLY, __URI_NS, SXL_IP_PROXY_RCVD[14.1.22.129.rip], HTML_00_01, HTML_00_10, __FRAUD_MONEY_CURRENCY, [TRUNCATED], so=2010-03-03 19:42:08, dmn=2016-08-03-0138
X-detected-operating-system by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] [fuzzy]
X-Received-From 129.22.103.194
X-BeenThere bug-bash@gnu.org
X-Mailman-Version 2.1.21
Precedence list
List-Id Bug reports for the GNU Bourne Again SHell <bug-bash.gnu.org>
List-Unsubscribe <https://lists.gnu.org/mailman/options/bug-bash>, <mailto:bug-bash-request@gnu.org?subject=unsubscribe>
List-Archive <http://lists.gnu.org/archive/html/bug-bash/>
List-Post <mailto:bug-bash@gnu.org>
List-Help <mailto:bug-bash-request@gnu.org?subject=help>
List-Subscribe <https://lists.gnu.org/mailman/listinfo/bug-bash>, <mailto:bug-bash-request@gnu.org?subject=subscribe>
Xref csiph.com gnu.bash.bug:14912

Show key headers only | View raw


On 12/9/18 1:30 AM, Grisha Levit wrote:
> When a variable is present in the temporary environment and then declared
> local in a function, it seems to not actually make a local variable, in the
> sense that the variable does not show up in the output of `local',
> unsetting
> the variable reveals the variable from the higher scope rather than marking
> it invisible, etc.
> 
>     $ f() { local v=x; local -p; }; v=t f
> 
>     $ f() { local v; declare -p v; }; v=t f
>     declare -x v="t"
> 
>     $ f() { local v=x; unset v; declare -p v; }; v=g; v=t f
>     declare -- v="g"
> 
> Is this intentional?

It's a cosmetic issue. The variables behave the same even if they're not
flagged as local. I'll fix it for the next release.

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
		 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/

Back to gnu.bash.bug | Previous | Next | Find similar | Unroll thread


Thread

Re: should `local' create local variables when they exist in the tempenv? Chet Ramey <chet.ramey@case.edu> - 2018-12-13 08:52 -0500

csiph-web