Author: larry
Date: Sat Sep 16 17:35:31 2006
New Revision: 12136
Modified:
doc/trunk/design/syn/S03.pod
Log:
Documented differences to filetest ops.
Modified: doc/trunk/design/syn/S03.pod
==============================================================================
--- doc/trunk/design/syn/S03.pod (original)
+++ doc/trunk/design/syn/S03.pod Sat Sep 16 17:35:31 2006
@@ -12,9 +12,9 @@
Maintainer: Larry Wall <[EMAIL PROTECTED]>
Date: 8 Mar 2004
- Last Modified: 14 Sep 2006
+ Last Modified: 16 Sep 2006
Number: 3
- Version: 64
+ Version: 65
=head1 Changes to Perl 5 operators
@@ -35,6 +35,19 @@
"stitching" the two ends of its arguments together. String append
is likewise C<~=>.
+=item * The filetest operators now return a result that is both a boolean
+and a stat buffer, so there is no longer any need for Perl 5's C<_> term.
+Instead just cascade tests to "and" them:
+
+ if -r -w -x $filename {...}
+
+Or put the value in a variable to do anything fancier:
+
+ $sb = -e $filename;
+ if -r $sb {...}
+ if -w $sb {...}
+ if -x $sb {...}
+
=item * All postfix operators that do not start with a dot also have
an alternate form that does. (The converse does not hold--just because
you can write C<x().foo> doesn't mean you can write C<x()foo>. Likewise
