FWIW

- if you read the file into memory first

raw := (FileStream readOnlyFileNamed: '/Users/bob/squeak/test.html') 
contentsOfEntireFile.
stream := raw readStream.

then you get the expected results

- there was a change to PositionableStream>>upToAll: in 2017. If you 
revert to the 1999 version, you will get the expected results

Maybe neither is the best answer, but they may help with finding it.


On 1/20/18 4:24 PM, Bernhard Pieber wrote:
> Hi everyone,
>
> I think I found a really strange bug in MultiByteFileStream. I am on macOS Sierra and used the latest VM from bintray and an updated trunk image.
>
> I try to parse anchors from a UTF-8 encoded HTML file (see attachment). It uses a MultiByteFileStream with a UTF8TextConverter.
>
> Here is the code that shows the bug:
>
> FileStream readOnlyFileNamed: 'test.html' do: [:stream |
> 	| result |
> 	result := OrderedCollection new.
> 	[stream atEnd] whileFalse: [
> 		stream match: '<A HREF="'.
> 		result add: (stream upToAll: '</A>')].
> 	result at: 13
> ].
>
> It answers the following string:
> 'https://www.europa.de/produkte/lebensversicherung">Darlehen sichern: Variable Risiko-Lebensversicherung</A>
> 				<DT><A HREF="http://orf.at/stories/2358210/2358209/">Banken im Zinsdilemma</A>
> 			</DL><p>
> 		</DL><p>
> 	</DL><p>
> </HTML>
> '
>
> You can see that it did not stop at the </A> as it should have but answers the rest of the file. The strange thing is that the next anchor looks like this:
> 'http://orf.at/stories/2358210/2358209/">Banken im Zinsdilemma</A>
> 			</DL><p>
> 		</DL><p>
> 	</DL><p>
> </HTML>
> '
> So it read part of the file again.
>
> I tried making the file smaller but the bug goes away then.
>
> As a cross check when I read the whole file at once it parses correctly.
>
> FileStream readOnlyFileNamed: 'test.html' do: [:fileStream |
> 	| stream result |
> 	stream := fileStream contentsOfEntireFile readStream.
> 	result := OrderedCollection new.
> 	[stream atEnd] whileFalse: [
> 		stream match: '<A HREF="'.
> 		result add: (stream upToAll: '</A>')].
> 	result at: 13
> ].
>
> Any ideas anyone?
>
> Bernhard
>
>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.squeakfoundation.org/pipermail/squeak-dev/attachments/20180120/29fb502f/attachment.html>