Re: BOLatexWriter

> 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.
>
> Lukas
>
> On Saturday, 24 September 2011, Tudor Girba <[hidden email]> 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."
> >
> >
> >
> >
> > _______________________________________________
> > Magritte, Pier and Related Tools ...
> > https://www.iam.unibe.ch/mailman/listinfo/smallwiki
> >
>
> --
> Lukas Renggli
> www.lukas-renggli.ch
> _______________________________________________
> Magritte, Pier and Related Tools ...
> https://www.iam.unibe.ch/mailman/listinfo/smallwiki

> Lukas
>
> >
> > Cheers,
> > Doru
> >
> >
> > 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.
> >>
> >> Lukas
> >>
> >> On Saturday, 24 September 2011, Tudor Girba <[hidden email]> 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."
> >> >
> >> >
> >> >
> >> >
> >> > _______________________________________________
> >> > Magritte, Pier and Related Tools ...
> >> > https://www.iam.unibe.ch/mailman/listinfo/smallwiki
> >> >
> >>
> >> --
> >> Lukas Renggli
> >> www.lukas-renggli.ch
> >> _______________________________________________
> >> Magritte, Pier and Related Tools ...
> >> https://www.iam.unibe.ch/mailman/listinfo/smallwiki
> >
> > --
> > www.tudorgirba.com
> >
> > "From an abstract enough point of view, any two things are similar."
> >
> >
> >
> > _______________________________________________
> > seaside mailing list
> > [hidden email]
> > http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
> >
>
> --
> Lukas Renggli
> www.lukas-renggli.ch
> _______________________________________________
> seaside mailing list
> [hidden email]
> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

> Hi,
>
>
> On 25 Sep 2011, at 08:49, Lukas Renggli wrote:
>
>> > Thanks. In the latest version of all Grease packages and the print: method is not around in the Stream hierarchy.
>>
>> Ok, then it should be added.
>>
>> > 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?
>>
>> No, the two strams don't have te same semantics. stream print: '\' should print '\'; latex print: '\' should print '\\'.
>
> Right. I got the difference now.
>
> But, I still would not know how to implement GRXYZStream>>print:, because I am not sure I understand what is the difference between print: and nextPutAll:. Could anyone help with this matter?
>
> Cheers,
> Doru
>
>
>
>> Lukas
>>
>> >
>> > Cheers,
>> > Doru
>> >
>> >
>> > 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.
>> >>
>> >> Lukas
>> >>
>> >> On Saturday, 24 September 2011, Tudor Girba <[hidden email]> 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."
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > _______________________________________________
>> >> > Magritte, Pier and Related Tools ...
>> >> > https://www.iam.unibe.ch/mailman/listinfo/smallwiki
>> >> >
>> >>
>> >> --
>> >> Lukas Renggli
>> >> www.lukas-renggli.ch
>> >> _______________________________________________
>> >> Magritte, Pier and Related Tools ...
>> >> https://www.iam.unibe.ch/mailman/listinfo/smallwiki
>> >
>> > --
>> > www.tudorgirba.com
>> >
>> > "From an abstract enough point of view, any two things are similar."
>> >
>> >
>> >
>> > _______________________________________________
>> > seaside mailing list
>> > [hidden email]
>> > http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>> >
>>
>> --
>> Lukas Renggli
>> www.lukas-renggli.ch
>> _______________________________________________
>> seaside mailing list
>> [hidden email]
>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>
> --
> www.tudorgirba.com
>
> "In a world where everything is moving ever faster,
> one might have better chances to win by moving slower."
>
>
>
> _______________________________________________
> seaside mailing list
> [hidden email]
> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>