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ABX wrote:
> On Tue, 10 Sep 2002 15:42:31 +0200, ABX <abx### [at] abx artpl> wrote:
>
>>Any idea for nice name for interpolation without interpolation ?
>
>
> Let's check voting. 'path_type' followed by parameter seems fine.
> There are two votes for float parameter and two votes for keyword parameter.
> Any help to fullfill democracy in this syntax designing ?
>
> ABX
float !
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> Forget all that if POV-Ray does it already :-)
We will forget it then ;-)
Thorsten
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> > Let's check voting. 'path_type' followed by parameter seems fine.
> > There are two votes for float parameter and two votes for keyword
parameter.
> > Any help to fullfill democracy in this syntax designing ?
> >
> > ABX
>
> float !
keyword!
Thorsten
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On Thu, 12 Sep 2002 15:30:10 +0200, "Thorsten Froehlich" <tho### [at] trfde>
wrote:
> keyword!
>
> Thorsten
Are you representing general stategy of the team with this vote ? I'm just not
sure how many votes I should count ;-)
Serously if this is suggestion from the team I would like to follow it. So ?
ABX
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Thorsten Froehlich wrote:
>
> > > Any help to fullfill democracy in this syntax designing ?
> >
> > float !
>
> keyword!
float!
Christoph
--
POV-Ray tutorials, IsoWood include,
TransSkin and more: http://www.tu-bs.de/~y0013390/
Last updated 13 Aug. 2002 _____./\/^>_*_<^\/\.______
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Christoph Hormann wrote:
>
> Thorsten Froehlich wrote:
> >
> > > > Any help to fullfill democracy in this syntax designing ?
> > >
> > > float !
> >
> > keyword!
>
> float!
Keyword!
--
Ken Tyler
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In article <nvt0oukgaqekbtkt6l08bmml104qg5ujk1@4ax.com>,
ABX <abx### [at] abxartpl> wrote:
> Let's check voting. 'path_type' followed by parameter seems fine.
> There are two votes for float parameter and two votes for keyword parameter.
> Any help to fullfill democracy in this syntax designing ?
Keyword.
--
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/
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In article <ne7vnuc47tqp5jpdqfn51nttlis14agp54@4ax.com>,
ABX <abx### [at] abxartpl> wrote:
> But I can include only necessary files so can optimize parsing time.
Still, including one file is probably more overhead than adding all the
keywords contained in a couple files.
> > Requiring an external include file.
> So many languages use header files with definitions so nothing new.
So does POV, functions.inc. It is annoying though, confusing to newbies,
and slower than a built-in keyword.
> > Heh, implementing it in the current POV would take a huge amount of
> > work. I'm mainly thinking of it as something to be considered for the
> > 4.0 rewrite.
>
> chicken ;-)
;-)
I will be looking at it...I'm just busy with school and lots of other
personal projects. (the CSDL/Sapphire language, Lumini raytracer, 3D
math and color-image libraries, a VR engine, a few others...)
> > I did something similar for Sapphire: when a
> > symbol is resolved it moves to the front of the symbol table.
>
> Any reference ? You mean http://sapphire.sourceforge.net/ ?
No, I was talking about my CSDL project:
http://home.earthlink.net/~cjameshuff/csdl/csdl.html
It's a language I created, I'm using it to control the raytracer and VR
engine. That's an old version though...I'll release a new one fairly
soon.
The acronym seemed clumsy and a bit inappropriate, since the language is
useful for more than simulations. I like sapphires, and it fit in with
the Perl, Ruby, ... sequence. I didn't know there was a window manager
with that name...
--
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/
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In article <3D8### [at] freefr>,
Nicolas Calimet <pov### [at] freefr> wrote:
> Do you mean that the current POV-Ray parser (which I never
> really investigated) searches the full list of keywords to get the
> proper token ? If so, what about hash tables as used when parsing
> mesh triangles/textures ?
No, I don't mean this. I was talking about a hypothetical way of doing
it, not a way to modify the current POV-Ray code.
> Putting the last resolved symbol at the beginning of the
> list assumes a high probability to find the same symbol again.
Not really...if it isn't used again, it quickly moves back "behind" the
more often used keywords. The more often resolved ones spend more time
at the front of the list, where they are hit more quickly. It is kind of
like using the front of the list as a cache, it is extremely simple and
much faster overall than just going through the list.
> I agree this is good for such big objects as meshes (and usually a
> very big scene is made of very big meshes...). But I don't think it's
> better than using hash tables in general. [A perfect hash table would
> be appropriate for build-in keywords which number is fixed].
For the POV-Ray parser, it is probably the fastest way. Sapphire
identifiers are pointers to strings: all identifiers with the same
string point to the same memory location, so comparison is fast, and
symbols are stored in a linked list, so it is extremely fast to remove
an element and push it on at the front of the list.
It would be possible to use a hash table, and it might be faster, but it
would use more memory and the number of symbols in a table is usualy too
small to get a real benefit. For POV, the requirements are different,
and a hash table is probably the best way.
I might eventually use a hash table for the compiler part of Sapphire,
it currently does a string comparison against every built-in token until
it finds a match. Compile times are already fast enough that I don't
even notice the delay, though.
--
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/
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In article <tf51ouso920fksq7c8h0o92mot1iqg842h@4ax.com> , ABX
<abx### [at] abxartpl> wrote:
> Are you representing general stategy of the team with this vote ? I'm just not
> sure how many votes I should count ;-)
No, just my opinion! Which means it will count something like 20% if there
would be vote in the team assuming the average "voter" participation ;-)
Thorsten
____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde
Visit POV-Ray on the web: http://mac.povray.org
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