commit bash-20110720 snapshot

doc/bashref.texi

@@ -1381,6 +1381,9 @@ Assignment statements may also appear as arguments to the
 @code{alias}, 
 @code{declare}, @code{typeset}, @code{export}, @code{readonly},
 and @code{local} builtin commands.
+When in @sc{posix} mode (@pxref{Bash POSIX Mode}), these builtins may appear
+in a command after one or more instances of the @code{command} builtin
+and retain these assignment statement properties.
 
 In the context where an assignment statement is assigning a value  
 to a shell variable or array index (@pxref{Arrays}), the @samp{+=}
@@ -2965,7 +2968,8 @@ If the @option{-e} option is supplied with @option{-P}
 and the current working directory cannot be successfully determined
 after a successful directory change, @code{cd} will return an unsuccessful
 status.
-If @var{directory} is @samp{-}, it is equivalent to @env{$OLDPWD}.
+If @var{directory} is @samp{-}, it is converted to @env{$OLDPWD}
+before the directory change is attempted.
 
 If a non-empty directory name from @env{CDPATH} is used, or if
 @samp{-} is the first argument, and the directory change is
@@ -6676,6 +6680,12 @@ the normal Bash files.
 Tilde expansion is only performed on assignments preceding a command
 name, rather than on all assignment statements on the line.
 
+@item
+The @code{command} builtin does not prevent builtins that take assignment
+statements as arguments from expanding them as assignment statements;
+when not in POSIX mode, assignment builtins lose their assignment
+statement expansion properties when preceded by @code{command}.
+
 @item
 The default history file is @file{~/.sh_history} (this is the
 default value of @env{$HISTFILE}).