First, I think I saw somewhere something like, "%perl6hash{$key}{$key}" and the lack of context prefixing made me feel very sad. I resist change, and I really like the way perl uses $ in scalar contexts and @ in array ones. If "%perl6hash{$key}{$key}" is a scalar, why the % prefix? Kinda reminds me of the changes to nwn2 — too much response to critics and not enough actual innovation. But I know almost nothing about it, so I'm probably totally wrong.
I did share the same exact feeling because the old current behaviour does make sense. But the more I think about it, the more I realize the new one does as well, and probably more too: in fact the former has some corner cases in which it doesn't square well. I can remember in particular a discussion with Uri Guttman in clpmisc... if $href contains a hashref, then what is $href->{'item1','item2'} to mean? To be unambiguous you have to use the other kind of dereferencing:
my $multi=${$href}{'item1','item2'}; # "multi"...
my @slice=@{$href}{'item1','item2'};
But to resolve the ambiguity with the first attempt the core developers made a choice that IMVHO is in retrospective not the most intuitive one. However in Perl 6 all possible ambiguities will be resolved with a consistent design and as a plus explicit referencing and dereferencing will be required on a much more sparse basis than currently is.
Said, this, I'm sure quite about everyone has some "favourite" piece of Perl 6 syntax or semantics that he doesn't particularly like. I, for one, I'm in the camp of those who dislike the choice of unicode operators at all. I suppose I could easily be called "old-minded". I guess I am. But given that they will have ASCII only equivalents and that both will be more or less equally easy to type and read, I don't care much after all.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|