Hello all,
This is a summary of ruby-dev ML in these days.
[ruby-dev:21932] rough / tabs.rb
Minero Aoki reviewed tabs.rb in CVS rough directory
because he wanted a standard library to treat tabs. But
he had some complaints of that, so he rewrote new one.
- much faster than original in difficult case
- nearly fast in normal case (some tabs in line head)
- bang method is slower than non-bang method
His thought:
- better name for expand_tabs in the case it’s in String class?
- someone may want to put under the Text module, not top class.
(Minero himself doesn’t care of it)
- may want aliases tabify/untabify
- may want detab/entab
[ruby-dev:21933] new hash literal
Nobu Nakata read Matz’s RC2003 slides
(http://www.rubyist.net/~matz/slides/rc2003/mgp00027.html)
and made a patch for a new hash literal like {key: value}.
[ruby-dev:21955] block local parameters in Ruby2
Shugo Maeda read Matz’s slides of RC2003 and found a notation:
- Block parameters will be block local
even if variables with same names exist
But he thought that a sample like below should raise an error.
def foo
x = 1
iter do |x|
p x # x is block local -> error!
end
p x # x is method local
end
Maeda and Matz feel that such style is ugly, but
some people doesn’t. So Matz will allow such nested
variables with warning.
[ruby-dev:21990] environment variables in ruby.1
Minero Aoki added a new section 'environment variables’
to man page of Ruby. Now we can see it in CVS.
[ruby-dev:22000] purge pthread at configure
U. Nakamura reported that he cannot pass 'make test’
with -lpthread option in his NetBSD/i386-current,
so he proposed to make an option to disable pthread.
Then a new option ‘–enable-pthread’ was added.
Regards,
TAKAHASHI ‘Maki’ Masayoshi E-mail: maki@rubycolor.org
Matz slide says:
{a: 45, b: 55, c: 65} same as {:a => 45, :b => 55 :c => 65}
Will it be possible to leave out spaces,
so that {a:45, b:55, c:65} are possible ?
Leaving out comma, will it be possible?
like this: {a:45 b:55 c:65}
What happens if no value are specified ? nil?
For instance ‘verbose:’ has no value
copy source:“file.in” dest:“file.out” verbose:
···
On Sat, 29 Nov 2003 03:57:05 +0900, Masayoshi Takahashi wrote:
[ruby-dev:21933] new hash literal
Nobu Nakata read Matz’s RC2003 slides
(http://www.rubyist.net/~matz/slides/rc2003/mgp00027.html)
and made a patch for a new hash literal like {key: value}.
–
Simon Strandgaard
Hi,
[ruby-dev:21933] new hash literal
Nobu Nakata read Matz’s RC2003 slides
(http://www.rubyist.net/~matz/slides/rc2003/mgp00027.html)
and made a patch for a new hash literal like {key: value}.
Matz slide says:
{a: 45, b: 55, c: 65} same as {:a => 45, :b => 55 :c => 65}
Will it be possible to leave out spaces,
so that {a:45, b:55, c:65} are possible ?
Yes, but impossible to put spaces before colons.
{a :45, b :55, c :65} same as {a(:45), b(:55), c(:65)}
But :45 and so on cause SyntaxError, of course.
Leaving out comma, will it be possible?
like this: {a:45 b:55 c:65}
No. I’ve not thought about such syntax.
What happens if no value are specified ? nil?
For instance ‘verbose:’ has no value
copy source:“file.in” dest:“file.out” verbose:
Parse error.
···
At Sat, 29 Nov 2003 06:42:13 +0900, Simon Strandgaard wrote:
–
Nobu Nakada
Hi,
Matz slide says:
{a: 45, b: 55, c: 65} same as {:a => 45, :b => 55 :c => 65}
Will it be possible to leave out spaces,
so that {a:45, b:55, c:65} are possible ?
Possible.
Leaving out comma, will it be possible?
like this: {a:45 b:55 c:65}
Not possible.
What happens if no value are specified ? nil?
For instance ‘verbose:’ has no value
copy source:“file.in” dest:“file.out” verbose:
Not possible. You always have to specify value to the keyword
arguments.
copy(source:“file.in”, dest:“file.out”, verbose:true)
matz.
···
In message “Re: ruby-dev summary: 21928-22011” on 03/11/29, Simon Strandgaard neoneye@adslhome.dk writes:
Thanks for your insight, Nobu.
···
–
Simon Strandgaard