[#88240] [Ruby trunk Feature#14759] [PATCH] set M_ARENA_MAX for glibc malloc — sam.saffron@...
Issue #14759 has been updated by sam.saffron (Sam Saffron).
3 messages
2018/08/01
[#88251] Re: [ruby-alerts:8236] failure alert on trunk@P895 (NG (r64134)) — Eric Wong <normalperson@...>
[email protected] wrote:
3 messages
2018/08/01
[#88305] [Ruby trunk Bug#14968] [PATCH] io.c: make all pipes nonblocking by default — normalperson@...
Issue #14968 has been reported by normalperson (Eric Wong).
4 messages
2018/08/06
[#88331] [Ruby trunk Feature#13618] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid — samuel@...
Issue #13618 has been updated by ioquatix (Samuel Williams).
3 messages
2018/08/08
[#88342] [Ruby trunk Feature#14955] [PATCH] gc.c: use MADV_FREE to release most of the heap page body — ko1@...
Issue #14955 has been updated by ko1 (Koichi Sasada).
3 messages
2018/08/08
[#88433] [Ruby trunk Feature#13618] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid — ko1@...
SXNzdWUgIzEzNjE4IGhhcyBiZWVuIHVwZGF0ZWQgYnkga28xIChLb2ljaGkgU2FzYWRhKS4KCgpX
4 messages
2018/08/10
[#88467] Re: [Ruby trunk Feature#13618] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid
— Eric Wong <normalperson@...>
2018/08/14
a28xQGF0ZG90Lm5ldCB3cm90ZToKPiBJc3N1ZSAjMTM2MTggaGFzIGJlZW4gdXBkYXRlZCBieSBr
[#88475] [Ruby trunk Misc#14937] [PATCH] thread_pthread: lazy-spawn timer-thread only on contention — ko1@...
Issue #14937 has been updated by ko1 (Koichi Sasada).
3 messages
2018/08/14
[#88491] Re: [ruby-cvs:71466] k0kubun:r64374 (trunk): test_function.rb: skip running test — Eric Wong <normalperson@...>
[email protected] wrote:
5 messages
2018/08/15
[#88495] Re: [ruby-cvs:71466] k0kubun:r64374 (trunk): test_function.rb: skip running test
— Takashi Kokubun <takashikkbn@...>
2018/08/15
SSBzZWUuIFBsZWFzZSByZW1vdmUgdGhlIHRlc3QgaWYgdGhlIHRlc3QgaXMgdW5uZWNlc3Nhcnku
[#88496] Re: [ruby-cvs:71466] k0kubun:r64374 (trunk): test_function.rb: skip running test
— Eric Wong <normalperson@...>
2018/08/15
Takashi Kokubun <[email protected]> wrote:
[#88523] [Ruby trunk Bug#14999] ConditionVariable doesn't reacquire the Mutex if Thread#kill-ed — eregontp@...
Issue #14999 has been updated by Eregon (Benoit Daloze).
4 messages
2018/08/17
[#88524] Re: [Ruby trunk Bug#14999] ConditionVariable doesn't reacquire the Mutex if Thread#kill-ed
— Eric Wong <normalperson@...>
2018/08/18
[email protected] wrote:
[#88549] [Ruby trunk Bug#14999] ConditionVariable doesn't reacquire the Mutex if Thread#kill-ed — eregontp@...
Issue #14999 has been updated by Eregon (Benoit Daloze).
3 messages
2018/08/19
[#88676] [Ruby trunk Misc#15014] thread.c: use rb_hrtime_scalar for high-resolution time operations — ko1@...
Issue #15014 has been updated by ko1 (Koichi Sasada).
5 messages
2018/08/27
[#88677] Re: [Ruby trunk Misc#15014] thread.c: use rb_hrtime_scalar for high-resolution time operations
— Eric Wong <normalperson@...>
2018/08/27
[email protected] wrote:
[#88678] Re: [Ruby trunk Misc#15014] thread.c: use rb_hrtime_scalar for high-resolution time operations
— Koichi Sasada <ko1@...>
2018/08/27
On 2018/08/27 16:16, Eric Wong wrote:
[#88716] Re: [ruby-dev:43715] [Ruby 1.9 - Bug #595] Fiber ignores ensure clause — Eric Wong <normalperson@...>
Koichi Sasada wrote:
4 messages
2018/08/29
[#88723] [Ruby trunk Bug#15041] [PATCH] cont.c: set th->root_fiber to current fiber at fork — ko1@...
Issue #15041 has been updated by ko1 (Koichi Sasada).
3 messages
2018/08/29
[#88767] [Ruby trunk Bug#15050] GC after forking with fibers crashes — ko1@...
Issue #15050 has been updated by ko1 (Koichi Sasada).
7 messages
2018/08/31
[#88769] Re: [Ruby trunk Bug#15050] GC after forking with fibers crashes
— Eric Wong <normalperson@...>
2018/08/31
Koichi Sasada <[email protected]> wrote:
[#88770] Re: [Ruby trunk Bug#15050] GC after forking with fibers crashes
— Koichi Sasada <ko1@...>
2018/08/31
[#88773] Re: [Ruby trunk Bug#15050] GC after forking with fibers crashes
— Eric Wong <normalperson@...>
2018/08/31
Koichi Sasada <[email protected]> wrote:
[#88774] Re: [ruby-alerts:8955] failure alert on trunk@P895 (NG (r64594)) — Eric Wong <normalperson@...>
[email protected] wrote:
3 messages
2018/08/31
[ruby-core:88642] [Ruby trunk Feature#15024] Support block in Array#join
From:
mame@...
Date:
2018-08-25 05:05:21 UTC
List:
ruby-core #88642
Issue #15024 has been updated by mame (Yusuke Endoh).
I'd like somewhat to agree with the motivation. Indeed, I sometimes feel I want to insert separators between each pair of elements. However, I cannot remember the concrete situation, and how often I have encountered the situation. The motivation examples in this ticket look too artificial, so not convincing to me. Could you show us a more real-world use case?
Personally, I don't think it is a good idea to extend `Array#join`. It is specialized to generation of a string, but I'm unsure if it is enough. And, the block parameters `|before, after, index|` look too ad-hoc to me. Passing an index is a role of `each_with_index`. It is not a responsibility of `join`, I think.
----------------------------------------
Feature #15024: Support block in Array#join
https://bugs.ruby-lang.org/issues/15024#change-73700
* Author: graywolf (Gray Wolf)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
----------------------------------------
I think it could be handy to have block support in Array#join.
For example
```ruby
> puts %w{a b c d}.join { |_, _, i| i % 2 == 1 ? "\n" : ', ' }
a, b
c, d
```
not sure what arguments exactly the block should take, atm I'm thinking
of
```ruby
> %w{a b c d}.join { |before, after, i| puts "#{before}:#{after}:#{i}" }
a:b:0
b:c:1
c:d:2
```
Would appreciate some feedback before I try putting together patch for this.
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