Path: csiph.com!xmission!news.snarked.org!news.linkpendium.com!news.linkpendium.com!panix!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: Bug Report concerning backslash in bash5 Date: Wed, 29 Jul 2020 09:30:58 -0400 Organization: ITS, Case Western Reserve University Lines: 23 Approved: bug-bash@gnu.org Message-ID: References: <15dff7a7b42bf7192b57066215723128@rbx.de> 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 1596029469 14286 209.51.188.17 (29 Jul 2020 13:31:09 GMT) X-Complaints-To: action@cs.stanford.edu Cc: chet.ramey@case.edu To: Ralph.Beckmann@rbx.de, bug-bash@gnu.org Envelope-to: bug-bash@gnu.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=smtp-primary; t=1596029464; bh=FWEvs2jcsl1RNHFW8RqKRGFYfAwqw/cOR0bu8yqM4ps=; h=Reply-To:Cc:Subject:To:References:From:Message-ID:Date: MIME-Version:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=kXKfaA9DVi6hMJeOV0LeUpuNzVkixzfbHjcFsL7x4xjhWRVGg85EnZ4y7sU8AmZqx2 fFlyS/BksV35TPYL6nMqqrjlAFjrfMm+3xQjyUOmfatxTIkQmg9op8lTwo2MdPCrGGo VaL3/IoPhg90RuhmZeotPHOVxaBJKUKdbI/oyP3xoipIe0lPDwwR4/rwHFSgNdHcKmX vtv7yZTA72wBYncXIoYGwhDSp4LEX96HYXhU1YosGujVeTMTWxwTVLdVYthhMReRiKM 9/KzoeiscIy2P+Zlv3acK2S4gAsxsod6+yEoplwcF33yxeo36GAurQN8EXOGBfe5l4U LNqWkg3A== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=smtp-primary; t=1596029462; bh=m+lNE/HYMhj84tr8/MXTn7P2F044W3n7c/FvvBpBeEU=; h=Reply-To:Cc:Subject:To:References:From:Message-ID:Date: MIME-Version:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=wx/YSOGU1zECIkNKXkU+QpR6BKsKK+20WteGEMdI7MgP67BbUPYvw0wwN9EOYexNOX PyuuuAepXXM5AWEK3aVKnMxN09n+dssTZH2MQI72jWJ6bPGDF5cSIz8fJkUIQKL5+tx Lc8LeH/2v3Wq0GhpTYEq24TYzGmXsOE+AI1kUMmps0/dOi60czCCXVZZKgw59pSNFPK r+XfNLUoYiLFaZcg2j7LSfG6IEDej7jIETQ7srar1T7YMMw7cg5WNlZhXoHn7ITTx3L C26Ie2IFLiHbUy5WB7J+Dvn4wPP1yMDOYtrrSbg7gFUxqmNtK01MqNwbCmdZaw80aKK 64+zIgpQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=g-case; h=reply-to:cc:subject:to:references:from:autocrypt:organization :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=m+lNE/HYMhj84tr8/MXTn7P2F044W3n7c/FvvBpBeEU=; b=X+TzarX920PGTQtj2aLs2BbLLBDYuEBGWIa8yf0FZ0WV6oc7GFRyizI7xy9/mgysUB /zHj9mnYHjvN91FyabTkcBpCCkLONmYGTeBCPDDPkev6sBMDzV0PsvmOvkCzrYgBnIYa QI0DXTnfxkSSQnG1AYQx1uJeYvQkbCIgFPXEYFrRkykm6KFpxuD5mF2iG0h3MkkhDuRv Rbz7oV0/Y/SyuiliKDz/uFVAZGjrFQnTbcWDE0UZ3n/1OP7wGDuuXv56bQNMwv8xrLID IOGzYC37Kcb4dlLvEvGrZMLDDUFOYdkQb7N41OFG48TLrT3YhobrlY5zG+6gmD27KEwY nEUw== 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:autocrypt :organization:message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=m+lNE/HYMhj84tr8/MXTn7P2F044W3n7c/FvvBpBeEU=; b=XwVv6U7Ni65godYBkdie1ZvnPHDNKRXhcBiQt0m12uKdGsnYUNsooWuj4z+vd7CxnD WPKWYZ0DvfcBMXUL3Au72WUm5ifg0j+Ehuq5fPBnSmZV8gRnaYxGe5Yxsmu4ZyI2IgX0 bq//uDEMV3lLrAPfOFr2aUIBniZeQBKbaSgdu3/1U4nOGFUi0a9q3NGbAkQCrSLde2ba iW0SjVRN7f6xm2FbLY7WZZkufSs04ekYJxRPorOR2+G8nM7/YNDtAUm4OztgYlCPltme r0MAb2dj7M9FqYQ8PdIO6O63+/8uYo1N+1KSeV2XMJ+soRim72hnGSSbLCZeF3Lt0k1G fkTQ== X-Gm-Message-State: AOAM5333JtG9JV0RsG+bfzAsyAylBv5kuhEBrd0l6XRnUhPSPavNSrFq KHoF8rnsPkQbsfwdC4wzoozrDPawfBx65hXaz9AKLTsQC8ew5ZrHXSydyYp/+Sc9w1/W0ugtM9T RF1EsarLItPc= X-Received: by 2002:a92:d64d:: with SMTP id x13mr34760744ilp.287.1596029461119; Wed, 29 Jul 2020 06:31:01 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzGLnmPkE93C/fuvP4tfoSovGq1eAU1kpmFPbT2bKebHJOtz6J7tKVLqwL6hjUs4qHPgw/DGQ== X-Received: by 2002:a92:d64d:: with SMTP id x13mr34760723ilp.287.1596029460792; Wed, 29 Jul 2020 06:31:00 -0700 (PDT) Autocrypt: addr=chet.ramey@case.edu; prefer-encrypt=mutual; keydata= mQGiBEEOsGwRBACFa0A1oa71HSZLWxAx0svXzhOZNQZOzqHmSuGOG92jIpQpr8DpvgRh40Yp AwdcXb8QG1J5yGAKeevNE1zCFaA725vGSdHUyypHouV0xoWwukYO6qlyyX+2BZU+okBUqoWQ koWxiYaCSfzB2Ln7pmdys1fJhcgBKf3VjWCjd2XJTwCgoFJOwyBFJdugjfwjSoRSwDOIMf0D /iQKqlWhIO1LGpMrGX0il0/x4zj0NAcSwAk7LaPZbN4UPjn5pqGEHBlf1+xDDQCkAoZ/VqES GZragl4VqJfxBr29Ag0UDvNbUbXoxQsARdero1M8GiAIRc50hj7HXFoERwenbNDJL86GPLAQ OTGOCa4W2o29nFfFjQrsrrYHzVtyA/9oyKvTeEMJ7NA3VJdWcmn7gOu0FxEmSNhSoV1T4vP2 1Wf7f5niCCRKQLNyUy0wEApQi4tSysdz+AbgAc0b/bHYVzIf2uO2lIEZQNNt+3g2bmXgloWm W5fsm/di50Gm1l1Na63d3RZ00SeFQos6WEwLUHEB0yp6KXluXLLIZitEJLQwQ2hldCBSYW1l eSAoQ2FzZSBzdGFuZGFyZCkgPGNoZXQucmFtZXlAY2FzZS5lZHU+iF8EExECAB8FAkPi19EC GwMHCwkIBwMCAQMVAgMDFgIBAh4BAheAAAoJELtYafBk6nSrelkAn31Gsuib7GcCZHbv5L5t VKYR9LklAJ4hzUHKA49Z0QXR+qCb80osIcmPSbkBDQRBDrBvEAQAkK6TAOKBEM+EC4j6V/7o /riVZqcgU5cid2qG9TXdwNtD9a3kvA/ObZBO93sX59wc6Bnwo4VJxsOmMlpGrAjJsxNwg3QH akEtf8LXRbVpj5xStdmBdQZUhIQyalo/2/TZq5OijtddUQcL5cs70hTv/FpT3wUvr2Xr8rjF 41IFEz8AAwcD/A0CZEGlzIrT5WCBnl6xBog/8vKiUCbarByat3d1mL6DbizvKNXQRTC9E/vE dENAWCQCjr75Bu55xT8n3SXGtWdDC5xmZ/P3OBYORP8yl8H8I1FIosWOFirbIeYdZPq8SPD1 HL+EXo9zSiHVrrZRJ19ooCKKbSdXHFCY+aJG+0KZiEkEGBECAAkFAkEOsG8CGwwACgkQu1hp 8GTqdKvjcACfZlkVCDwaz/NTO9cy3t69oWpVPNwAnRwe0qk/WL/gfhH346xh5B3HFbFN User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 In-Reply-To: <15dff7a7b42bf7192b57066215723128@rbx.de> Content-Language: en-US X-Mirapoint-IP-Reputation: reputation=Good-1, source=Queried, refid=tid=0001.0A020302.5F21706D.0110, actions=tag X-Mirapoint-IP-Reputation: reputation=good-1, source=Fixed, refid=n/a, actions=tag X-Junkmail-Status: score=7/80, host=mpv2-2015.case.edu X-Junkmail-PrAS-Raw: score=7/80, refid=2.7.2:2020.7.29.130018:17:7.944, ip=, rules=__YOUTUBE_RCVD, DKIM_SIGNATURE, __X_GOOGLE_DKIM_SIGNATURE, __HAS_REPLYTO, __HAS_CC_HDR, __SUBJ_REPLY, __BOUNCE_CHALLENGE_SUBJ, __BOUNCE_NDR_SUBJ_EXEMPT, __SUBJ_ALPHA_END, __TO_MALFORMED_2, __TO_NO_NAME, __MULTIPLE_RCPTS_TO_X2, __HAS_REFERENCES, __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, __DKIM_ALIGNS_1, __DKIM_ALIGNS_2, __ANY_URI, __URI_MAILTO, __URI_WITH_PATH, __URI_ENDS_IN_SLASH, __URI_NO_WWW, __CP_URI_IN_BODY, __FRAUD_MONEY_CURRENCY_DOLLAR, __SUBJ_ALPHA_NEGATE, __URI_IN_BODY, __URI_NOT_IMG, __MAIL_CHAIN, __FORWARDED_MSG, __BODY_NO_MAILTO, __NO_HTML_TAG_RAW, BODY_SIZE_700_799, [TRUNCATED], so=2010-03-03 19:42:08, dmn=2016-08-03-0138 Received-SPF: pass client-ip=129.22.103.227; envelope-from=chet.ramey@case.edu; helo=mpv1-2015.case.edu X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/29 09:31:02 X-ACL-Warn: Detected OS = Linux 2.4.x-2.6.x [generic] X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: X-Mailman-Original-References: <15dff7a7b42bf7192b57066215723128@rbx.de> Xref: csiph.com gnu.bash.bug:16646 On 7/28/20 6:42 PM, Ralph Beckmann wrote: > Hello GNU team, > > I found this misbehaviour in Bash 5 (e.g. GNU bash, version > 5.0.16(1)-release (x86_64-pc-linux-gnu)): > > $ BLA="1\.2"; echo 'x/'$BLA'/y/' > \x/1\.2/\y/ > > I don't see any reasonable reason for the generated backslashes here. Thanks for the report. This issue was a product of the bash-5.0 changes to support the POSIX standard language concerning backslashes in shell patterns. It is fixed in the devel branch and in bash-5.1-alpha. Chet -- ``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/