[Seaside] Re: BOLatexWriter
tudor at tudorgirba.com
Sat Sep 24 21:41:25 UTC 2011
Thanks. In the latest version of all Grease packages and the print: method is not around in the Stream hierarchy.
So, for is it Ok to have the fix in BOLatexWriter>>visitInternalLink: by replacing stream with latex to work with print: or do you see problems there?
On 24 Sep 2011, at 23:11, Lukas Renggli wrote:
> Yes, this is intentional: 'stream' is the raw low-level stream, 'latex' is the high-level encoded stream. The choice to which you send the output is important. Changing it likely breaks the generation of valid LaTeX.
> GRPharoUtf8CodecStream or better its abstract superclass should implement #print:. I think this was discussed in the Seaside list recently and fixed, but I might be wrong.
> On Saturday, 24 September 2011, Tudor Girba <tudor at tudorgirba.com> wrote:
> > Hi,
> > I am testing Pier 2 some more, and now I got a problem in the Latex writer. Specifically, I do not quite understand the difference between the latex instance variable and the inherited stream one.
> > Take a look at the snippet below:
> > BOLatexWriter>>visitInternalLink: anInternalLink
> > ...
> > latex tab ... square: [ stream nextPutAll: 'width='; print: ((anInternalLink parameterAt: 'width' ifAbsent: [ 100 ]) asNumber / 100.0); ... ]
> > When executed on a book we have two instance variables:
> > - stream: instance of GRPharoUtf8CodecStream (inherited)
> > - latex: instance of BOLatexStream which wraps stream
> > Now, it so happens that GRPharoUtf8CodecStream does not understand print:, but this method exists in BOLatexStream. I fixed the code by replacing stream with latex in the above method, and it works.
> > But, there are still other places that use stream, and I think they should all use the BOLatexStream instance instead. So, my question is: Is this intentional? Or maybe should we actually simply override the setting of stream and use that one for everything?
> > Cheers,
> > Doru
> > --
> > www.tudorgirba.com
> > "Yesterday is a fact.
> > Tomorrow is a possibility.
> > Today is a challenge."
> > _______________________________________________
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> Lukas Renggli
> Magritte, Pier and Related Tools ...
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