Ralf Hemmecke wrote:
>
> Thank you, Waldek for this explanation.
>
> >> Better would perhaps be
> >>
> >> sayTeX(x) == sayString(x)
>
> > Well, we need to untangle usage of streams first. Currently
> > we have a lot of redirections in various ways. Some redirections
> > probably are useless or evan harmful. But most is necessary to
> > ensure that output goes to correct stream. This redirection
> > code is tangled with low level formatting code.
>
> OK, sayString(x) is wrong. (Well, I later realized, that sayNewLine()
> was missing.) But anyway, it goes to the wrong stream.
>
> What about
>
> sayTeXStream(x, $fricasOutput) ==
> sayString(x)
> sayNewLine()
> FORCE_-OUTPUT $fricasOutput
>
> sayTeX(x) == if x then sayTeXStream(x, $texOutputStream)
>
> then?
Looks wrong for me:
1) sayString seem to normally get string as an argument.
AFAICS sayTeX may get list of stings.
2) there are more redirections than just using $fricasOutput
>
> sayTeX does only appear in a few files.
>
> grep -R sayTeX * |grep -v -- '--.*sayTeX'
> src/interp/msgdb.boot:sayTeX(x) == sayBrightly1(x, $texOutputStream)
> src/algebra/export3D.spad: sayTeX$Lisp "Can't write point or
> curve to OBJ file"
> src/algebra/clifford.spad: sayTeX$Lisp concat ["rcProdTerm:
> ",s1,s2,s3,s4]
> src/algebra/clifford.spad: sayTeX$Lisp concat ["rcProdTerm:
> ",s1,s2,s3,s4]
> src/algebra/clifford.spad: sayTeX$Lisp concat
> ["cliffordProdTerm: ",s1,s2,s3,s4]
> src/algebra/mathml.spad: sayTeX$Lisp mathML.u
> src/algebra/mathml.spad: sayTeX$Lisp mathML.u
> src/algebra/mathml.spad: sayTeX$Lisp mathML.u
>
> My feeling is that a call to sayTeX in any other spad file than tex.spad
> is wrong usage, i.e. a bug.
Yes. They are used for debugging, and better form is
sayMsg ==> sayBrightly$Lisp
and using sayMsg instead of sayTeX
--
Waldek Hebisch
[email protected]
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