Joachim,
It works for me:
String streamContents: [ :out |
(NeoCSVWriter on: out)
addField: #x; addConstantField: String empty; addField: #y;
nextPutAll: { 1@2. 3@4 } ].
=> '"1","","2"
"3","","4"
'
What is the value of the instance variable #fieldWriter inside NeoCSVWriter ?
It should default to #writeQuotedField: (as set in #initialize).
If I am misinterpreting your intentions, please provide a small standalone
executable example.
Sven
> On 24 Dec 2017, at 07:13, [email protected] wrote:
>
> Sven,
>
> hmm. The fields I need to write are known not to be written with my
> application, so I am lloking for a way to define a field as being an empty
> quoted field at all times.
> So for I've tried:
>
> addConstantField: nil --> Exception
> addObjectFied: [:a| ] --> empty field without quotes
> addConstantField: '' --> empty field without quotes
>
> So it seems I have to implement some method on my business object that
> returns nil and map it to all the fields that need to be empty and quoted.
>
>
> Joachim
>
>
> Am 22.12.17 um 15:48 schrieb Sven Van Caekenberghe:
>> Hi Joachim,
>>
>> nil fields normally write as 'empty quoted fields':
>>
>> String streamContents: [ :out | (NeoCSVWriter on: out) nextPut: #(nil nil
>> nil) ].
>>
>> => '"","",""'
>>
>> Is this not what you want/need ?
>>
>> Sven
>>
>>> On 22 Dec 2017, at 15:05, [email protected] wrote:
>>>
>>> Hi,
>>>
>>> I need to write a number of empty quoted fields in a CSV export. The
>>> receiving application will complain about missing quotes for empty text
>>> fields... (don't ask, I've done all the eye rolling for you already)
>>>
>>> My frst attempt was:
>>>
>>> writer addConstantField: '""'.
>>>
>>>
>>> But this doesn't write the quotes - I really don't see why, but it's the
>>> case.
>>>
>>> Also, adding
>>>
>>> writer addObjectField: [:a| '""'].
>>>
>>>
>>> doesn't really work, because it will literally add the double quotes
>>> between single quotes... (???)
>>>
>>>
>>>
>>> Do I really have to implement some method that returns an empty String on
>>> my business objects and use:
>>>
>>> writer addQuotedField: #justAnEmptyString. ?
>>>
>>> Am I missing some switch to enable quotes for empty quoted fields?
>>>
>>> My version of NeoCSVWriter on VA Smalltalk is not actually a current one...
>>>
>>>
>>>
>>> Joachim
>>>
>>> And, btw: Happy Holidays to all of you and a Happy new Year!
>>>
>>>
>>>
>>>
>>> --
>>> -----------------------------------------------------------------------
>>> Objektfabrik Joachim Tuchel mailto:[email protected]
>>> Fliederweg 1 http://www.objektfabrik.de
>>> D-71640 Ludwigsburg http://joachimtuchel.wordpress.com
>>> Telefon: +49 7141 56 10 86 0 Fax: +49 7141 56 10 86 1
>>>
>>>
>>
>>
>
> --
> -----------------------------------------------------------------------
> Objektfabrik Joachim Tuchel mailto:[email protected]
> Fliederweg 1 http://www.objektfabrik.de
> D-71640 Ludwigsburg http://joachimtuchel.wordpress.com
> Telefon: +49 7141 56 10 86 0 Fax: +49 7141 56 10 86 1
>
>
