On 2012-12-29 3:46 PM, Frank Shearar wrote:
> On 29 December 2012 17:30, Chris Cunnington
> <smalltalktelevision at gmail.com> wrote:
>> I have a question about converting an OrderedCollection full of chars into a
>> string. [1]
>>
>> I would have thought there was a method like #asString that could be sent to
>> an OrderedCollection to produce a string. I find myself having to do the
>> process in three steps: 1) #reading the OC; 2) creating an empty string; and
>> then, 3) iterating over every char to put it into the String.
>>
>> I think I'm missing a simpler way. Especially with Xtreams. Shouldn't I just
>> use a filter, change the #contentSpecies, or something?
> You're getting Characters, I guess, because you're reading one element
> at a time [1]. There's nothing stopping you reading more than that:
>
> ('abc' reading read: 3) = 'abc'.
> ('abc reading rest) = 'abc'.
>
> frank
>
> [1] It's worth bearing in mind that Xtreams operate over streams of
> arbitrary objects, not just characters.
I don't know. The situation is more like:

     oc := #($a $b $c).
     oc := oc asOrderedCollection.
     oc reading read: 3   an OrderedCollection($a $b $c)


The terminal is the OC. But it returns an OC and I want a string from 
the chars. I've been looking at the transforms page of the Xtreams docs 
and that seems more about changing the encoding. I think my problem 
wasn't really about Xtreams.

Chris
>> Chris
>>
>>
>> [1]
>>
>> startTag: data
>>      <action: 'element'>
>>      |tagdata str |
>>      tagdata := data second first reading.
>>      str := (String new: 20) writing.
>>      tagdata do: [:each| str put: each].
>>      ^'html ' , (data first second first asString) , $: , $' , (str close;
>> terminal) , $'
>>
>>