Author: larry
Date: Tue Sep 12 11:20:04 2006
New Revision: 11971
Modified:
doc/trunk/design/syn/S03.pod
Log:
Further clarifications and fixups.
Modified: doc/trunk/design/syn/S03.pod
==============================================================================
--- doc/trunk/design/syn/S03.pod (original)
+++ doc/trunk/design/syn/S03.pod Tue Sep 12 11:20:04 2006
@@ -14,7 +14,7 @@
Date: 8 Mar 2004
Last Modified: 12 Sep 2006
Number: 3
- Version: 59
+ Version: 60
=head1 Changes to Perl 5 operators
@@ -982,7 +982,7 @@
Likewise, from the fact that list context flattens inner arrays and
lists, it follows that a reduced assignment does no special syntactic
-dwimmery, and hence only scalar assigments are supported. Therefore
+dwimmery, and hence only scalar assignments are supported. Therefore
[=] $x, @y, $z, 0
[+=] $x, @y, $z, 1
@@ -1067,10 +1067,17 @@
@a Xcmp @b Xcmp @c # ILLEGAL
@a Xeq @b Xeq @c # ok
+In fact, though the C<X> operators are all list associative
+syntactically, the underlying operator is always applied with its
+own associativity.
+
Unlike bare C<X>, the C<X,> form flattens much like C<[,]> does.
<a b> X, <1 2> # 'a', '1', 'a', '2', 'b', '1', 'b', '2'
+Note that only the first term of an C<X> operator may reasonably be
+an infinite list.
+
=head1 Junctive operators
C<|>, C<&>, and C<^> are no longer bitwise operators (see
@@ -1183,7 +1190,7 @@
my ($b, $c); # okay
my $b, $c; # wrong: "Use of undeclared variable: $c"
-Types occuring between the declarator and the signature are distributed into
+Types occurring between the declarator and the signature are distributed into
each variable:
my Dog ($b, $c);
@@ -1459,6 +1466,7 @@
['a', '1'], ['a', '2'], ['b', '1'], ['b', '2']
It is really a variant of the C<X> metaoperator mentioned earlier.
+
=head1 Minimal whitespace DWIMmery
Whitespace is no longer allowed before the opening bracket of an array
