Path: csiph.com!goblin1!goblin.stu.neva.ru!usenet.stanford.edu!not-for-mail From: Grisha Levit Newsgroups: gnu.bash.bug Subject: CTLESC and CTLNUL removed in certain contexts Date: Thu, 20 Sep 2018 20:23:02 -0400 Lines: 12 Approved: bug-bash@gnu.org Message-ID: NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" X-Trace: usenet.stanford.edu 1537489401 13388 208.118.235.17 (21 Sep 2018 00:23:21 GMT) X-Complaints-To: action@cs.stanford.edu To: bug-bash Envelope-to: bug-bash@gnu.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=YEmtWpaXAtuOAoQGYD+uNzXwigiJNmx57L5wnOHbpxQ=; b=f5E2Cr5I5fp9NLRfNkN2a5A6tbEjR5hDJp2I4Fk5ep5WfYrwZKON7FcMWbJCDW/IsQ +0SWEQ/QOzxBq/vngGQi8nxjctK54S/R5wBGz0dzPYYY25kEoxYoC9A0NZr8wEpOTsPL Sm8hRw65uJX/mXkKVNtpvmhYvTVUGno3EJ/OY0qwGA5GDOEgeoBr6a5PlxAfn2ITqURm qTguHyiP4jX1FEQ9mYBm1JLX2XyIiUYvgc619IichRTPNId4ywmF4ePPTU1lIJKmLF8s xP43CBqh5YOdSbFdwlDlY1vDtpSIfrEI4R4UUiTH/FyFswV6Ph6C/oZfIYEibx/8PkUL 4KfQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=YEmtWpaXAtuOAoQGYD+uNzXwigiJNmx57L5wnOHbpxQ=; b=ptPvtfm7gLr85/ATqX9Mt7u0BaQ/oHf3kwsf56mXbIk0qcAroPr9TJRLFYnGh1QgR8 3fipMzlelxmLz/Gdj8dE4qRHt8v0tmWagRlxOYi87FaLIDnhgpdWb7fYMqBlKCwKRDO8 UvbX/dbud0TUFNtBbwKNCjRGF1RpCnR3Z1YG6oXu11vz3FP1kZ6mh1/TySiIqPzhfsDf 1H5LuCLIRfx8+zUkaNld3bvsf30AZwEDOzWZmL17aulNTEtGyYr6HsWOT8etHNt8hTWV 3ga4ywDRxRF2QEeeais4BZ+XOqQ1CxBP0v8wqe3X1V3rCpoeyEbx+9qPXh3C/auwTUlJ vRJA== X-Gm-Message-State: APzg51BJHOeucdyAWPO476HLuYpgO3LfyPU1C02FOUamClYuKyuLvM6I ZmJHJa2oPjsZN8qSNvaO5x4wZrGVucRUl6fVkK04HQ== X-Google-Smtp-Source: ANB0VdaiYVkDredVQEvqEXzy7pFYH6L8/3oOCIlD+IWk0nkyvKzt6CSM/fErnus6Mg0BZtyeYwP/+YwmldeBQY/NFyg= X-Received: by 2002:a2e:21d5:: with SMTP id h82-v6mr27245531lji.46.1537489393782; Thu, 20 Sep 2018 17:23:13 -0700 (PDT) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::22f X-Content-Filtered-By: Mailman/MimeDel 2.1.21 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com gnu.bash.bug:14615 (this is maybe too edge-case to be worth looking at) A couple circumstances cause repeated instances of \001 and any instances of \177 to be removed from as string: $ a=$'<\001\001><\177\177>' $ z=$(compgen -W "$a"); echo "${z@A}" z=$'<\001><>' $ declare -A A=(); printf -v "A[$a]" X; declare -p A declare -A A=([$'<\001><>']="X" ) The latter is resolved if assoc_expand_once is turned on.