[stringtemplate-interest] handling of arrays (John Snyders)

[Harry Karadimas]

Hi, I don't know if that relates to the previous post, but java *does* 
have something
to encapsulate an array into a list, and that is the "asList" method of 
the java.util.Arrays
class.

Object[] myArray = ...
List myList = Arrays.asList(myArray);

                                                       Harry Karadimas
/______________________________________________________________________
Dr Harry Karadimas  Medecin Ingenieur resp. Recherche et Developpement
Departement d'Information Hospitalier
CHU Henri Mondor 51, av. du Mal de Lattre de Tassigny   94010  CRETEIL
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stringtemplate-interest-request at antlr.org a écrit :
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> Today's Topics:
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>    1. Re: handling of arrays (John Snyders)
>    2. Re: inconsistency with length function (Oliver Flege)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 28 Jan 2007 21:44:26 -0500
> From: "John Snyders" <jjsnyders at rcn.com>
> Subject: Re: [stringtemplate-interest] handling of arrays
> To: "Terence Parr" <parrt at cs.usfca.edu>,	"StringTemplate"
> 	<stringtemplate-interest at antlr.org>
> Message-ID: <PMEOJKDLMMHOHNEAMPBGGEJMCAAA.jjsnyders at rcn.com>
> Content-Type: text/plain;	charset="US-ASCII"
>
>   
>> -----Original Message-----
>> From: stringtemplate-interest-bounces at antlr.org
>> [mailto:stringtemplate-interest-bounces at antlr.org]On Behalf Of Terence
>> Parr
>> Sent: Saturday, January 27, 2007 6:38 PM
>> To: StringTemplate
>> Subject: Re: [stringtemplate-interest] handling of arrays
>>
>> On Jan 16, 2007, at 9:40 PM, John Snyders wrote:
>>
>>     
>>> I noticed in ASTExpr.java the method convertArrayToList.
>>>       
>> it is.  just done to make things consistent...else have to check for
>> arrays everyone.  gross, eh?
>>
>>     
>>> It seems to me that this is wasteful. I have not looked at it too
>>> deep but why not handle arrays like other collections and wrap them
>>> in an ArrayIterator inside convertAnythingIteratableToIterator.
>>>       
>> Interesting...ArrayIterator, eh?  Does Sun have a standard one?  I
>> don't see it.  Do you mean I should create one real quick?
>>     
>
> There isn't one in the Java SDK (as far as I know) but jakarta commons has
> one
> http://jakarta.apache.org/commons/collections/api-release/org/apache/commons
> /collections/iterators/ArrayIterator.html
>
> ST probably shouldn't rely on this so you can create your own. It is
> straight forward.
> I created one before I found the one in commons collections. I can give it
> to you if you like
> (assuming I can find it). But again I didn't think this through fully.
>
>   
>> Ter
>>
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>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 29 Jan 2007 10:25:24 +0100
> From: Oliver Flege <o.flege at market-maker.de>
> Subject: Re: [stringtemplate-interest] inconsistency with length
> 	function
> To: StringTemplate <stringtemplate-interest at antlr.org>
> Message-ID: <45BDBD84.4040707 at market-maker.de>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Hi,
>
> Terence Parr wrote:
>   
>>> I think that the length method in ASTExpr.java should be changed as  
>>> follows:
>>> From:
>>>
>>> } else if (attribute instanceof List) {
>>>   i = ((List)attribute).size();
>>> }
>>> To:
>>>
>>> } else if (attribute instanceof Collection) {
>>>   i = ((List)attribute).size();
>>> }
>>>       
>> Howdy!  OK, yep, good fix.
>>     
>
> even better would be
>
> } else if (attribute instanceof Collection) {
>   i = ((Collection)attribute).size();
> }
>
> :)
>
> Cheers,
>
>  Oliver
>
>
>
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> End of stringtemplate-interest Digest, Vol 22, Issue 14
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