From owner-svn-src-head@FreeBSD.ORG Sun Oct 24 17:06:50 2010 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 697A8106566B; Sun, 24 Oct 2010 17:06:50 +0000 (UTC) (envelope-from jilles@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 3CFA58FC1F; Sun, 24 Oct 2010 17:06:50 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id o9OH6o59034600; Sun, 24 Oct 2010 17:06:50 GMT (envelope-from jilles@svn.freebsd.org) Received: (from jilles@localhost) by svn.freebsd.org (8.14.3/8.14.3/Submit) id o9OH6oOV034597; Sun, 24 Oct 2010 17:06:50 GMT (envelope-from jilles@svn.freebsd.org) Message-Id: <201010241706.o9OH6oOV034597@svn.freebsd.org> From: Jilles Tjoelker Date: Sun, 24 Oct 2010 17:06:50 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r214281 - in head: bin/sh tools/regression/bin/sh/parser X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 24 Oct 2010 17:06:50 -0000 Author: jilles Date: Sun Oct 24 17:06:49 2010 New Revision: 214281 URL: http://svn.freebsd.org/changeset/base/214281 Log: sh: Change ! within a pipeline to start a new pipeline instead. This is how ksh93 treats ! within a pipeline and makes the ! in a | ! b | c negate the exit status of the pipeline, as if it were a | { ! b | c; } Side effect: something like f() ! a is now a syntax error, because a function definition takes a command, not a pipeline. Exp-run done by: pav (with some other sh(1) changes) Added: head/tools/regression/bin/sh/parser/pipe-not1.0 (contents, props changed) Modified: head/bin/sh/parser.c Modified: head/bin/sh/parser.c ============================================================================== --- head/bin/sh/parser.c Sun Oct 24 16:55:17 2010 (r214280) +++ head/bin/sh/parser.c Sun Oct 24 17:06:49 2010 (r214281) @@ -328,7 +328,7 @@ pipeline(void) { union node *n1, *n2, *pipenode; struct nodelist *lp, *prev; - int negate; + int negate, t; negate = 0; checkkwd = 2; @@ -347,7 +347,13 @@ pipeline(void) do { prev = lp; lp = (struct nodelist *)stalloc(sizeof (struct nodelist)); - lp->n = command(); + checkkwd = 2; + t = readtoken(); + tokpushback++; + if (t == TNOT) + lp->n = pipeline(); + else + lp->n = command(); prev->next = lp; } while (readtoken() == TPIPE); lp->next = NULL; @@ -372,7 +378,7 @@ command(void) union node *ap, **app; union node *cp, **cpp; union node *redir, **rpp; - int t, negate = 0; + int t; checkkwd = 2; redir = NULL; @@ -387,12 +393,6 @@ command(void) } tokpushback++; - while (readtoken() == TNOT) { - TRACE(("command: TNOT recognized\n")); - negate = !negate; - } - tokpushback++; - switch (readtoken()) { case TIF: n1 = (union node *)stalloc(sizeof (struct nif)); @@ -573,7 +573,7 @@ TRACE(("expecting DO got %s %s\n", tokna case TRP: tokpushback++; n1 = simplecmd(rpp, redir); - goto checkneg; + return n1; default: synexpect(-1); } @@ -596,15 +596,7 @@ TRACE(("expecting DO got %s %s\n", tokna n1->nredir.redirect = redir; } -checkneg: - if (negate) { - n2 = (union node *)stalloc(sizeof (struct nnot)); - n2->type = NNOT; - n2->nnot.com = n1; - return n2; - } - else - return n1; + return n1; } Added: head/tools/regression/bin/sh/parser/pipe-not1.0 ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/tools/regression/bin/sh/parser/pipe-not1.0 Sun Oct 24 17:06:49 2010 (r214281) @@ -0,0 +1,3 @@ +# $FreeBSD$ + +: | ! : | false