Sven I do not see the binary stream. Is it ZnCharacterReadStream?
Stef
On Mon, Oct 2, 2017 at 1:22 PM, Sven Van Caekenberghe <s...@stfx.eu> wrote:
> Hi,
>
>> On 2 Oct 2017, at 13:07, Dirk Olmes <d...@xanthippe.ping.de> wrote:
>>
>> Hi,
>>
>> I'm trying to get started with Pharo doing something really simple - at
>> least that's what I thought ... I'm trying to read a text file line by line.
>>
>> If I use File named: '/tmp/linex.txt' readStream nextLine I'll get a
>> debugger telling me that BinaryFileStream does not understand nextLine.
>>
>> Now I've tried my best to find a stream that may be reading plain text
>> lines but to no avail ...
>>
>> Help!
>>
>> -dirk
>
> $ cat > /tmp/lines.txt
> one
> two
> three
>
> (FileLocator temp / 'lines.txt') contents lines.
>
> '/tmp/lines.txt' asFileReference contents lines.
>
> '/tmp/lines.txt' asFileReference readStreamDo: [ :in |
> Array streamContents: [ :out |
> [ in atEnd ] whileFalse: [ out nextPut: in nextLine ] ] ].
>
> (File named: '/tmp/lines.txt') readStreamDo: [ :in |
> | characterStream |
> characterStream := ZnCharacterReadStream on: in.
> Array streamContents: [ :out |
> [ characterStream atEnd ] whileFalse: [ out nextPut: characterStream
> nextLine ] ] ].
>
> They all return #('one' 'two' 'three').
>
> In the last, more complex example, you first get a binary stream (and a
> 'line' is a character based concept), so wrapping the binary stream in a
> character read stream (which does know about lines) solves the problem.
>
> HTH,
>
> Sven
