Author: jilles
Date: Wed Aug 14 19:34:13 2013
New Revision: 254335
URL: http://svnweb.freebsd.org/changeset/base/254335

Log:
  sh: Allow a lone redirection before '|', ';;' or ';&'.
  
  Example: </dev/null | :
  
  PR:           181240
  MFC after:    1 week

Added:
  head/tools/regression/bin/sh/parser/only-redir2.0   (contents, props changed)
  head/tools/regression/bin/sh/parser/only-redir3.0   (contents, props changed)
  head/tools/regression/bin/sh/parser/only-redir4.0   (contents, props changed)
Modified:
  head/bin/sh/parser.c

Modified: head/bin/sh/parser.c
==============================================================================
--- head/bin/sh/parser.c        Wed Aug 14 19:16:37 2013        (r254334)
+++ head/bin/sh/parser.c        Wed Aug 14 19:34:13 2013        (r254335)
@@ -577,6 +577,9 @@ TRACE(("expecting DO got %s %s\n", tokna
        case TSEMI:
        case TAND:
        case TOR:
+       case TPIPE:
+       case TENDCASE:
+       case TFALLTHRU:
                /*
                 * An empty command before a ; doesn't make much sense, and
                 * should certainly be disallowed in the case of `if ;'.

Added: head/tools/regression/bin/sh/parser/only-redir2.0
==============================================================================
--- /dev/null   00:00:00 1970   (empty, because file is newly added)
+++ head/tools/regression/bin/sh/parser/only-redir2.0   Wed Aug 14 19:34:13 
2013        (r254335)
@@ -0,0 +1,2 @@
+# $FreeBSD$
+</dev/null | :

Added: head/tools/regression/bin/sh/parser/only-redir3.0
==============================================================================
--- /dev/null   00:00:00 1970   (empty, because file is newly added)
+++ head/tools/regression/bin/sh/parser/only-redir3.0   Wed Aug 14 19:34:13 
2013        (r254335)
@@ -0,0 +1,2 @@
+# $FreeBSD$
+case x in x) </dev/null ;; esac

Added: head/tools/regression/bin/sh/parser/only-redir4.0
==============================================================================
--- /dev/null   00:00:00 1970   (empty, because file is newly added)
+++ head/tools/regression/bin/sh/parser/only-redir4.0   Wed Aug 14 19:34:13 
2013        (r254335)
@@ -0,0 +1,2 @@
+# $FreeBSD$
+case x in x) </dev/null ;& esac
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