RFR JDK-8200172,String.split non-positive term incorrect use

Xueming Shen xueming.shen at oracle.com
Wed May 23 00:43:18 UTC 2018


Thanks!

webrev has been updated as suggested.

http://cr.openjdk.java.net/~sherman/8200172/webrev/

-Sherman

On 5/22/18, 4:30 PM, joe darcy wrote:
> Hello,
>
> I think some larger re-wording is in order. Here is one of the 
> proposed new paragraphs:
>
> 2181      * <p> The {@code limit} parameter controls the number of 
> times the
> 2182      * pattern is applied and therefore affects the length of the 
> resulting
> 2183      * array.  If the limit <i>n</i> is greater than zero then 
> the pattern
> 2184      * will be applied at most <i>n</i> - 1 times, the 
> array's
> 2185      * length will be no greater than <i>n</i>, and the array's 
> last entry
> 2186      * will contain all input beyond the last matched delimiter.  
> If <i>n</i>
> 2187      * is negative then the pattern will be applied as many times as
> 2188      * possible and the array can have any length.  If <i>n</i> 
> is zero then
> 2189      * the pattern will be applied as many times as possible, the 
> array can
> 2190      * have any length, and trailing empty strings will be 
> discarded.
>
> In a mathematical signed-ness sense there are three values, positive, 
> zero, and negative, hence library methods like Integer.signum which 
> return -1, 0, or 1. The term non-negative covers zero and positive 
> values; conversely non-positive covers zero and negative.
>
> In terms of how the above paragraph could be structured, I'd recommend
>
> "If the limit n is positive...
>  If the limit n is zero...
>  if the limit n is negative..."
>
> possibly using an unordered list.
>
> No CSR would be required for this kind of change as the semantics of 
> the specification is not being altered.
>
> HTH,
>
> -Joe
>
>
> On 5/22/2018 4:13 PM, Lance Andersen wrote:
>> Hi Sherman
>>
>> The change from non-positive to negative makes sense.
>>
>> I would agree that a CSR should not be required (hopefully Joe D does 
>> also ;-) )
>>
>> Best
>> Lance
>>> On May 22, 2018, at 7:07 PM, Xueming Shen <xueming.shen at oracle.com> 
>>> wrote:
>>>
>>> Hi,
>>>
>>> Please help review a api doc clarification for 
>>> String.split()/Pattern.split().
>>>
>>> issue: https://bugs.openjdk.java.net/browse/JDK-8200172
>>> webrev: http://cr.openjdk.java.net/~sherman/8200172/webrev
>>>
>>> As suggested, it appears to be clear, straightforward and less 
>>> confusion to simply
>>> categorize the clauses as "if positive", "if negative" and "if zero".
>>>
>>> It's simply a rewording to clear things up, I would assume csr is 
>>> not necessary here.
>>>
>>> thanks,
>>> Sherman
>>>
>> <http://oracle.com/us/design/oracle-email-sig-198324.gif>
>> <http://oracle.com/us/design/oracle-email-sig-198324.gif> 
>> <http://oracle.com/us/design/oracle-email-sig-198324.gif>
>> <http://oracle.com/us/design/oracle-email-sig-198324.gif>Lance 
>> Andersen| Principal Member of Technical Staff | +1.781.442.2037
>> Oracle Java Engineering
>> 1 Network Drive
>> Burlington, MA 01803
>> Lance.Andersen at oracle.com <mailto:Lance.Andersen at oracle.com>
>>
>>
>>
>



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