* [ruby-core:40697] [ruby-trunk - Feature #5558][Open] String#% strange arity errors
@ 2011-11-03 1:25 Thomas Sawyer
2012-03-27 14:44 ` [ruby-core:43740] [ruby-trunk - Feature #5558][Assigned] " mame (Yusuke Endoh)
0 siblings, 1 reply; 2+ messages in thread
From: Thomas Sawyer @ 2011-11-03 1:25 UTC (permalink / raw
To: ruby-core
Issue #5558 has been reported by Thomas Sawyer.
----------------------------------------
Feature #5558: String#% strange arity errors
http://redmine.ruby-lang.org/issues/5558
Author: Thomas Sawyer
Status: Open
Priority: Normal
Assignee:
Category:
Target version:
When the number of arguments do not match the number of % parameters, the String#% method has some odd behavior.
When too many, it seems to work fine, ignoring the extra arguments.
"%s" % [1,2] #=> "1"
But if `$DEBUG = true`,
"%s" % [1,2] #=> ArgumentError: too many arguments for format string
That doesn't seem right. Is it an error or isn't it?
For too few arguments it is always an error:
"%s" % [] #=> ArgumentError: too few arguments
Personally, I think it should use '' for missing arguments. That would make it more flexible in practice.
I consider the first $DEBUG issue a bug, and the later a feature. But I'll just call it a feature altogether to make things easier.
--
http://redmine.ruby-lang.org
^ permalink raw reply [flat|nested] 2+ messages in thread
* [ruby-core:43740] [ruby-trunk - Feature #5558][Assigned] String#% strange arity errors
2011-11-03 1:25 [ruby-core:40697] [ruby-trunk - Feature #5558][Open] String#% strange arity errors Thomas Sawyer
@ 2012-03-27 14:44 ` mame (Yusuke Endoh)
0 siblings, 0 replies; 2+ messages in thread
From: mame (Yusuke Endoh) @ 2012-03-27 14:44 UTC (permalink / raw
To: ruby-core
Issue #5558 has been updated by mame (Yusuke Endoh).
Status changed from Open to Assigned
Assignee set to matz (Yukihiro Matsumoto)
This behavior is certainly intended. See [ruby-core:5161].
There is another example that behavior changes whether it is
debug mode or not: Thread#abort_on_exception.
Thread.new { raise }
sleep 1
The above will terminate normally without -d.
But it will blow up with -d.
So, we should know that -d affects the behavior, IMO.
--
Yusuke Endoh <mame@tsg.ne.jp>
----------------------------------------
Feature #5558: String#% strange arity errors
https://bugs.ruby-lang.org/issues/5558#change-25247
Author: trans (Thomas Sawyer)
Status: Assigned
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category:
Target version:
When the number of arguments do not match the number of % parameters, the String#% method has some odd behavior.
When too many, it seems to work fine, ignoring the extra arguments.
"%s" % [1,2] #=> "1"
But if `$DEBUG = true`,
"%s" % [1,2] #=> ArgumentError: too many arguments for format string
That doesn't seem right. Is it an error or isn't it?
For too few arguments it is always an error:
"%s" % [] #=> ArgumentError: too few arguments
Personally, I think it should use '' for missing arguments. That would make it more flexible in practice.
I consider the first $DEBUG issue a bug, and the later a feature. But I'll just call it a feature altogether to make things easier.
--
http://bugs.ruby-lang.org/
^ permalink raw reply [flat|nested] 2+ messages in thread
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2011-11-03 1:25 [ruby-core:40697] [ruby-trunk - Feature #5558][Open] String#% strange arity errors Thomas Sawyer
2012-03-27 14:44 ` [ruby-core:43740] [ruby-trunk - Feature #5558][Assigned] " mame (Yusuke Endoh)
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