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Re: EGL question [message #528466]

Tue, 20 April 2010 15:34

Louis Rose

Messages: 440
Registered: July 2009
Location: York, United Kingdom

Senior Member

Hi Steffen,

Good to hear from you. I hope you're well.

There's not support for sequence separation characters for loops, but
there is the EolCollection#concat method. In this case, the following
should do what you want:

[%=class.extends.concat(',');%]

Cheers,
Louis.

Steffen Zschaler wrote:
> Hi Louis,
>
> Does EGL provide support for sequence separation characters in for
> loops? For example, in generating an extends clause, could I write
> something like
>
> [%for (sc in class.extends; separator=',') {%]
> [%=sc.name%]
> [%}%]
>
>
> instead of having to keep writing this:
>
> [%first := true;
> for (sc in class.extends) {
> if (first)
> first := false
> else
> out.print (',');
> %]
> [%=sc.name%]
> [%}%]
>
>
> Cheers,
>
> Steffen
>
> --
> Dr. rer. nat. Steffen Zschaler
> Marie Curie Fellow
>
> Lancaster University
> Lancaster, United Kingdom
>
> Email szschaler@acm.org
> Phone +44 (01524) 510354
> WWW http://www.steffen-zschaler.de/
>

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Re: EGL question [message #528467 is a reply to message #528466]

Tue, 20 April 2010 15:36

Louis Rose

Messages: 440
Registered: July 2009
Location: York, United Kingdom

Senior Member

Whoops, that should be:

[%=class.extends.concat(',')%]

(semi-colon terminators are omitted in dynamic sections)

Louis Rose wrote:
> Hi Steffen,
>
> Good to hear from you. I hope you're well.
>
> There's not support for sequence separation characters for loops, but
> there is the EolCollection#concat method. In this case, the following
> should do what you want:
>
> [%=class.extends.concat(',');%]
>
> Cheers,
> Louis.
>
>
> Steffen Zschaler wrote:
>> Hi Louis,
>>
>> Does EGL provide support for sequence separation characters in for
>> loops? For example, in generating an extends clause, could I write
>> something like
>>
>> [%for (sc in class.extends; separator=',') {%]
>> [%=sc.name%]
>> [%}%]
>>
>> instead of having to keep writing this:
>>
>> [%first := true;
>> for (sc in class.extends) {
>> if (first) first := false
>> else
>> out.print (',');
>> %]
>> [%=sc.name%]
>> [%}%]
>>
>> Cheers,
>>
>> Steffen
>>
>> --
>> Dr. rer. nat. Steffen Zschaler
>> Marie Curie Fellow
>>
>> Lancaster University
>> Lancaster, United Kingdom
>>
>> Email szschaler@acm.org
>> Phone +44 (01524) 510354
>> WWW http://www.steffen-zschaler.de/
>>

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Re: EGL question [message #528468 is a reply to message #528467]

Tue, 20 April 2010 15:39

Dimitrios Kolovos

Messages: 1776
Registered: July 2009

Senior Member

Hi Steffen,

In for loops, two additional implicit variables are available:

* loopCount : Integer (starts at 1)
* hasMore : Boolean (false if in the last loop, true otherwise)

Having said this, the concat() method suggested by Louis is still the
most efficient option for the scenario you mentioned.

Cheers,
Dimitris

Louis Rose wrote:
> Whoops, that should be:
>
> [%=class.extends.concat(',')%]
>
> (semi-colon terminators are omitted in dynamic sections)
>
> Louis Rose wrote:
>> Hi Steffen,
>>
>> Good to hear from you. I hope you're well.
>>
>> There's not support for sequence separation characters for loops, but
>> there is the EolCollection#concat method. In this case, the following
>> should do what you want:
>>
>> [%=class.extends.concat(',');%]
>>
>> Cheers,
>> Louis.
>>
>>
>> Steffen Zschaler wrote:
>>> Hi Louis,
>>>
>>> Does EGL provide support for sequence separation characters in for
>>> loops? For example, in generating an extends clause, could I write
>>> something like
>>>
>>> [%for (sc in class.extends; separator=',') {%]
>>> [%=sc.name%]
>>> [%}%]
>>> instead of having to keep writing this:
>>>
>>> [%first := true;
>>> for (sc in class.extends) {
>>> if (first) first := false
>>> else
>>> out.print (',');
>>> %]
>>> [%=sc.name%]
>>> [%}%]
>>> Cheers,
>>>
>>> Steffen
>>>
>>> --
>>> Dr. rer. nat. Steffen Zschaler
>>> Marie Curie Fellow
>>>
>>> Lancaster University
>>> Lancaster, United Kingdom
>>>
>>> Email szschaler@acm.org
>>> Phone +44 (01524) 510354
>>> WWW http://www.steffen-zschaler.de/
>>>

--
Spread the word: http://www.eclipse.org/gmt/epsilon/spreadtheword
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Re: EGL question [message #528598 is a reply to message #528468]

Wed, 21 April 2010 08:36

Steffen Zschaler

Messages: 266
Registered: July 2009

Senior Member

Thanks folks!

Steffen

On 20/04/2010 16:39, Dimitris Kolovos wrote:
> Hi Steffen,
>
> In for loops, two additional implicit variables are available:
>
> * loopCount : Integer (starts at 1)
> * hasMore : Boolean (false if in the last loop, true otherwise)
>
> Having said this, the concat() method suggested by Louis is still the
> most efficient option for the scenario you mentioned.
>
> Cheers,
> Dimitris
>
> Louis Rose wrote:
>> Whoops, that should be:
>>
>> [%=class.extends.concat(',')%]
>>
>> (semi-colon terminators are omitted in dynamic sections)
>>
>> Louis Rose wrote:
>>> Hi Steffen,
>>>
>>> Good to hear from you. I hope you're well.
>>>
>>> There's not support for sequence separation characters for loops,
>>> but there is the EolCollection#concat method. In this case, the
>>> following should do what you want:
>>>
>>> [%=class.extends.concat(',');%]
>>>
>>> Cheers,
>>> Louis.
>>>
>>>
>>> Steffen Zschaler wrote:
>>>> Hi Louis,
>>>>
>>>> Does EGL provide support for sequence separation characters in for
>>>> loops? For example, in generating an extends clause, could I write
>>>> something like
>>>>
>>>> [%for (sc in class.extends; separator=',') {%]
>>>> [%=sc.name%]
>>>> [%}%]
>>>> instead of having to keep writing this:
>>>>
>>>> [%first := true;
>>>> for (sc in class.extends) {
>>>> if (first) first := false
>>>> else
>>>> out.print (',');
>>>> %]
>>>> [%=sc.name%]
>>>> [%}%]
>>>> Cheers,
>>>>
>>>> Steffen
>>>>
>>>> --
>>>> Dr. rer. nat. Steffen Zschaler
>>>> Marie Curie Fellow
>>>>
>>>> Lancaster University
>>>> Lancaster, United Kingdom
>>>>
>>>> Email szschaler@acm.org
>>>> Phone +44 (01524) 510354
>>>> WWW http://www.steffen-zschaler.de/
>>>>
>
>

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