Re: [svn:perl6-synopsis] r14432 - doc/trunk/design/syn

[Aaron Crane]

[EMAIL PROTECTED] writes:
 +Placeholder names may only be lowercase, not because we're mean, but
 +because it helps us catch references to obsolete Perl 5 variables such as 
 $^O.

That seems unnecessarily restrictive.  How about may not consist
solely of uppercase letters instead?  That would still permit things
like $^Item, or caseless letters (Han characters, Japanese kana,
Hangul, Devanagari, Thai, Hebrew, Arabic, etc).

Maybe even may not consist solely of uppercase Latin-script letters;
that would permit uppercase Greek and Cyrillic and so on.

-- 
Aaron Crane

[svn:perl6-synopsis] r14432 - doc/trunk/design/syn

[larry]

Author: larry
Date: Fri Aug  3 18:27:52 2007
New Revision: 14432

Modified:
   doc/trunk/design/syn/S05.pod
   doc/trunk/design/syn/S06.pod

Log:
Clarification of meaning of foo: string form as non-interpolating
Restriction of placeholder names to lowercase to help us catch $^O et al.


Modified: doc/trunk/design/syn/S05.pod
==
--- doc/trunk/design/syn/S05.pod(original)
+++ doc/trunk/design/syn/S05.podFri Aug  3 18:27:52 2007
@@ -14,9 +14,9 @@
Maintainer: Patrick Michaud [EMAIL PROTECTED] and
Larry Wall [EMAIL PROTECTED]
Date: 24 Jun 2002
-   Last Modified: 10 Jul 2007
+   Last Modified: 3 Jul 2007
Number: 5
-   Version: 61
+   Version: 62
 
 This document summarizes Apocalypse 5, which is about the new regex
 syntax.  We now try to call them Iregex rather than regular
@@ -1000,7 +1000,8 @@
 
 foo: bar
 
-To pass a string with leading whitespace you must use the parenthesized form.
+To pass a string with leading whitespace, or to interpolate any values
+into the string, you must use the parenthesized form.
 
 If the first character is a plus or minus, the initial identifier
 is taken as a character class, so the first character after the

Modified: doc/trunk/design/syn/S06.pod
==
--- doc/trunk/design/syn/S06.pod(original)
+++ doc/trunk/design/syn/S06.podFri Aug  3 18:27:52 2007
@@ -13,9 +13,9 @@
 
   Maintainer: Larry Wall [EMAIL PROTECTED]
   Date: 21 Mar 2003
-  Last Modified: 2 Jun 2007
+  Last Modified: 3 Aug 2007
   Number: 6
-  Version: 88
+  Version: 89
 
 
 This document summarizes Apocalypse 6, which covers subroutines and the
@@ -1397,6 +1397,8 @@
 Note that placeholder variables syntactically cannot have type constraints.
 Also, it is illegal to use placeholder variables in a block that already
 has a signature, because the autogenerated signature would conflict with that.
+Placeholder names may only be lowercase, not because we're mean, but
+because it helps us catch references to obsolete Perl 5 variables such as $^O.
 
 =head1 Properties and traits