ruby-dev suumary 26862-26956
Masayoshi Takahashi
This is a summary of ruby-dev ML in these days.
[ruby-dev:26869] [Oniguruma] Version 3.8.9
K.Kosako announced that new Oniguruma was released.
[ruby-dev:26881] Re: Failure: test_block_passing(TestIterator)
Kazuhiro NISHIYAMA reported that test_block_passing(TestIterator)
on ruby chkbuild (automated build test) fails in 1.8 and 1.9.
http://www.rubyist.net/~akr/chkbuild/debian-sarge/ruby-1.8/last
http://www.rubyist.net/~akr/chkbuild/debian-sarge/ruby-trunk/last
Nobuyoshi Nakada said that he was still considering.
[ruby-dev:26895] Enumerable#count
Satoru Takabayashi wrote a table of methods of Array
in Ruby, Python, JavaScript, Perl and C.
http://namazu.org/~satoru/blog/archives/000043.html
When he wrote it, he found that Ruby doesn't have
a method such as a.count(x) in Python. He wanted
to add Enumerable#count into Ruby.
But in his next mail, he found that Enumerable#nitems
has block like a.nitems{|e| e == x}. He guessed it
may be enough to do.
[ruby-dev:26900] multiplying empty string
Nobuyoshi Nakada asked whether it is a feature that
"x".taint * 0 is tainted when "x" is tainted. Matz
answered that it is by design and it should be not
problem, but Tanaka Akira doubted it (he is really
interested in taint model and its security).
[ruby-dev:26924] enumerator
Nobuyoshi Nakada made a patch to return Enumerator
object when Enumerable method is called without
block. It's applied to each or each-like methods
in Array, Dir, Hash, IO, Range, String and Struct.
http://www.rubyist.net/~nobu/ruby/enumerator.diff
Regards,
Masayoshi 'Maki' Takahashi E-mail: ma...@rubycolor.org
Austin Ziegler
> [ruby-dev:26895] Enumerable#count
>
> Satoru Takabayashi wrote a table of methods of Array
> in Ruby, Python, JavaScript, Perl and C.
>
> http://namazu.org/~satoru/blog/archives/000043.html
>
> When he wrote it, he found that Ruby doesn't have
> a method such as a.count(x) in Python. He wanted
> to add Enumerable#count into Ruby.
>
> But in his next mail, he found that Enumerable#nitems
> has block like a.nitems{|e| e == x}. He guessed it
> may be enough to do.
I think that it would not be a bad idea to add Enumerable#count as an
alias for Enumerable#nitems, as while #nitems is somewhat sensible, it
doesn't leap out as a "count items that are like this" method to me. I
would tend to favour #select with #size or #inject if said method does
not exist.
> [ruby-dev:26924] enumerator
> Nobuyoshi Nakada made a patch to return Enumerator
> object when Enumerable method is called without
> block. It's applied to each or each-like methods
> in Array, Dir, Hash, IO, Range, String and Struct.
>
> http://www.rubyist.net/~nobu/ruby/enumerator.diff
Um. Any chance of seeing this in Ruby 1.8.x? I'm supposing this is
instead of a LocalJumpError.
-austin
--
Austin Ziegler * halos...@gmail.com
* Alternate: aus...@halostatue.ca
Florian Groß
> I think that it would not be a bad idea to add Enumerable#count as an
> alias for Enumerable#nitems, as while #nitems is somewhat sensible, it
> doesn't leap out as a "count items that are like this" method to me. I
> would tend to favour #select with #size or #inject if said method does
> not exist.
Why not? I read it as "number of items" so being able to use a block
seems natural.
#count might still be a good idea, though -- I think people are going to
try #count first.
nobu....@softhome.net
At Fri, 16 Sep 2005 02:38:30 +0900,
Austin Ziegler wrote in [ruby-talk:156292]:
> > [ruby-dev:26924] enumerator
> > Nobuyoshi Nakada made a patch to return Enumerator
> > object when Enumerable method is called without
> > block. It's applied to each or each-like methods
> > in Array, Dir, Hash, IO, Range, String and Struct.
> >
> > http://www.rubyist.net/~nobu/ruby/enumerator.diff
>
> Um. Any chance of seeing this in Ruby 1.8.x? I'm supposing this is
> instead of a LocalJumpError.
It would be radical change for stable version, at least 1.8.3.
--
Nobu Nakada