opt/pilog.l?

hi all, being a newbie and all, what is the significance of pilog.l in opt/ in the source distribution? best, /e -- UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe

Re: opt/pilog.l?

Hi Edwin, > being a newbie and all, what is the significance of pilog.l in opt/ in > the source distribution? There was a discussion here last year, where to put extensions of the basic system or libraries, so that the names do not conflict with the existing ones. The first case were some Pilog

Re: picolisp in java

Hi Tomas, On 10/4/10 7:27 PM, Tomas Hlavaty wrote: .. For example, even simple 'if' is implemented as a picolisp fexpr: (de if (C . L) (loop (T C (up. '@ @) (eval (car L) 1)) (T T (run (cdr L) 1)) ) ) .. I'm just curious, what does that 'up.' do? I can't find it in

Re: opt/pilog.l?

Hi Alex, On Tue, Oct 5, 2010 at 3:10 PM, Alexander Burger wrote: > > The first case were some Pilog extensions from cle, and as there is > already a "lib/pilog.l" and a "misc/pilog.l", we agreed to put such > things into a new directory "opt/". thank you. cheers, /e -- UNSUBSCRIBE: mailto:pic

Re: picolisp in java

http://www.software-lab.de/doc/refU.html#up On Tue, Oct 5, 2010 at 2:14 PM, Jon Kleiser wrote= : > Hi Tomas, > > On 10/4/10 7:27 PM, Tomas Hlavaty wrote: > .. >> >> For example, even simple 'if' is implemented as a picolisp fexpr: >> >> =A0 (de if (C . L) >> =A0 =A0 =A0(loop >> =A0 =A0 =A0 =A0 (T

Re: picolisp in java

Hi Jon, > I'm just curious, what does that 'up.' do? I can't find it in the > PicoLisp ref. 'up.' is an internal function implemented in directly in Java. It was needed as a functional equivalent to 'up' because I needed something that would expect quoted agruments. 'up' is not programmable. /

Re: picolisp in java

Hi Alex, > For example, even simple 'if' is implemented as a picolisp fexpr: > >(de if (C . L) > (loop > (T C (up. '@ @) (eval (car L) 1)) > (T T (run (cdr L) 1)) ) ) one of the significant factors that are slowing it down is all these environment lookups like the 'up.

Re: picolisp in java

Hi Tomas, btw, the strategy of deriving _all_ flow functions from 'loop' is very elegant! Cheers, - Alex -- UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe

pi and e

Hi, I may have asked this earlier .. If so, maybe it should be in the FAQ .. What's the standard way of obtaining math constants "pi" and "e"? Are they predefined somewhere? /Jon -- UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe

Re: pi and e

Hi Jon, > What's the standard way of obtaining math constants "pi" and "e"? > Are they predefined somewhere? Only 'pi' is explicitly defined, if you load "lib/math.l". 'e' is not there, but can be calculated dynamically: $ ./dbg lib/math.l : (format pi *Scl) -> "3.141593" : (format (

Re: picolisp in java

Hi Alex, > btw, the strategy of deriving _all_ flow functions from 'loop' is very > elegant! thanks! It is indeed elegant and very inefficient;-) For production system, all these functions should be coded in Java instead of lisp, but it vas a great learning exercise this way, especially in the