gmane.comp.lang.factor.general

jamshred updates

Alex Chapman — 2008-05-08T07:48:57

------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone_______________________________________________ Factor-talk mailing list Factor-talk-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f< at >public.gmane.org https://lists.sourceforge.net/lists/listinfo/factor-talk

deployment not working?

Alex Chapman — 2008-05-08T07:44:06

Bug in CSV parser

Slava Pestov — 2008-05-05T22:51:37

Hi Phil, Try parsing the following: "foo \"bar\" bar" csv Also perhaps lines starting with # should be ignored as comments? Slava ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone

git on cygwin

Stefan Scholl — 2008-05-05T07:28:14

Funny: error: git-checkout-index: unable to create file build-support/factor.sh (Permission denied) And now factor.sh is gone. :-)

csv issue with "foo"\n

Philip Fominykh — 2008-05-01T08:22:40

Hello, There is an issue with csv parser, where if a quoted field is followed immediately by newline, the newline is ignored. The following test demonstrates the problem; and a fix. Cheers, Philip diff --git a/extra/csv/csv-tests.factor b/extra/csv/csv-tests.factor index 6ab26c7..858736a 100644 --- a/extra/csv/csv-tests.factor +++ b/extra/csv/csv-tests.factor < at >< at > -46,9 +46,11 < at >< at > IN: csv.tests [ "Year,Make,Model\n1997,Ford,E350\n2000,Mercury,Cougar" csv ] named-unit-test - +"Quoted field followed immediately by newline" +[ { { "foo" "bar" } + { "1" "2" } } ] +[ "foo,\"bar\"\n1,2" csv ] named-unit-test - ! !!!!!!!! other tests [ { { "Phil Dawes" } } ] diff --git a/extra/csv/csv.factor b/extra/csv/csv.factor index 3953ce0..b1953f5 100644 --- a/extra/csv/csv.factor +++ b/extra/csv/csv.factor < at >< at > -31,6 +31,7 < at >< at > VAR: delimiter read1 dup { { CHAR: " [ , quoted-field ] } ! " is an escaped quote { delimiter> [ ] } ! end o

Bug reports

Justin DeVries — 2008-04-28T16:12:13

Modernized the bunny demo; new spheres demo

Joe Groff — 2008-04-28T01:54:56

In git://pgdn.org/factor I went through all the old-slots-laden bunny demo code and cleaned it up to use new-slots. For kicks, I also added another OpenGL 2 demo, "spheres". ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone

git woes

Phil Dawes — 2008-04-27T19:18:53

Hi Dan, I've got a couple of patches and a vocab in my git repo now, but still I'm struggling to make it work properly. I'm publishing to a public repo on my laptop and then rsyncing that to my webspace, but get failures pulling from the webspace where I don't from the local dir. The webspace version is at http://phildawes.net/2008/factor.git I was wondering if you had any suggestions, or failing that if I could use some space on factorforge until I get the problem figured out? Cheers, Phil ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone

Status of ARM-Linux?

Maxim Savtchenko — 2008-04-24T08:58:10

As I see on "Getting Factor" page, current status of Linux ARM port is "Untested or outdated". I'm looking forward on getting pretty powerful ARM-Linux handheld ( http://pandorawiki.org/Pandora ) somwhere in 2008. This leads to important question - what are your plans on ARM-linux Factor? If there is no perspective of Factor 1.0 in my pocket, it will be really sad. Maxim Savchenko ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone

What is a good definition ?

Jean-François Bigot — 2008-04-23T21:17:06

Hi, I needed to get the list of all combinaisons of n elements chosen in a sequence. Quite simple in fact but disturbing for a beginner. First problem, how to know if there is already a word doing this in factor? RTFM => I read "Sequence operations" several times. Documentation is very nice and interesting to read but it's sometime difficult for me to find a word doing what I want. (Or there are too many words doing quite the same, I don't know) Nevertheless reading definitions often give new ideas on how to solve problems. Second problem, maybe the needed word is undocumented somewhere in the extra directory. In that case it's maybe simpler to rewrite than to try to find it. With doc freshly reminded I wrote without too many difficulties the next two definitions (lean back and think) : columnize ( seq -- seq ) [ 1array ] map ; inline : among ( seq n -- seq ) 2dup swap length { { [ over 1 = ] [ 3drop columnize ] } { [ 2dup < ] [ 2drop [ 1 cut ] dip

Interesting use of 'fry'

Slava Pestov — 2008-04-22T23:59:28

Hi all, I'm working on the web framework and came up with this: : render-plain-list ( seq component quot -- ) '[ , component>> renderer>> < at > ] each ; inline : render-ordered-list ( seq quot component -- )

< at >

; inline : render-unordered-list ( seq quot component -- )

< at >

; inline : render-list ( value renderer quot -- ) over type>> { { +plain+ [ render-plain-list ] } { +ordered+ [ render-ordered-list ] } { +unordered+ [ render-unordered-list ] } } case ; inline M: list-renderer render-view* [ render-view* ] render-list ; M: list-renderer render-summary* [ render-summary* ] render-list ; I think this is a pretty nice use-case for 'fry' and its hard to imagine how this code could be improved further. Slava ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don

Recursive fry

Slava Pestov — 2008-04-22T21:28:40

Hi all, A few people asked for this so I implemented it. You can now use fry directives in nested quotations: 3 1 '[ , [ , + ] map ] call => { 1 2 3 } This is equivalent to 3 1 '[ , , '[ , + ] map ] call And in fact it is implemented in this way. Slava ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone

Proposal: some changes to streams

Slava Pestov — 2008-04-22T19:20:30

Hi all, Right now we have an 'stdio' variable and various words which operate on it, : read stdio get stream-read ; : readln stdio get stream-readln ; : write stdio get stream-write ; : print stdio get stream-print ; with-stream rebinds it and closes it after, with-stream* rebinds it without closing. This makes for very nice and concise code, but there's one problem with it and that it cannot express the case where you want to read from one file and write to another at the same time. Instead, you need to do something like this, "in.txt" utf8 [ "out.txt" latin1 [ [ ... ] with-stream* ] with-disposal ] with-disposal Or if you want to read from a file and print to the console in the same code, stdio get "in.txt" utf8 [ swap [ ... ] with-stream* ] with-disposal This is too awkward for a language named "Factor". I propose replacing the stdio variable with two v

rename alert

Eduardo Cavazos — 2008-04-22T08:08:52

Hello, Just a little heads up for y'all. The word 'subset' will likely be renamed to 'filter' in the next few days. Ed ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone

Named shufflers (rethought of "factor-way locals"idea)

Maxim Savtchenko — 2008-04-22T03:36:43

Idea of local storage in more factor-way still looks interesting for me. I have followed Slava's advice about "implement and play a little". It was interesting and not-so-hard experience. Here are results. If I want to dismiss annoying "stack micro-management", there is no need for additional named stacks. Instead of it I had come to "stack-marking named shufflers" paradigm. I'd like to show it on simple and common (for me) example from my dns library. What if we need "virtual" stream that incapsulates some "real" stream and simply counts number of symbols we are reading? TUPLE: dns-stream counter ; : ( stream -- stream ) 0 dns-stream construct-boa tuck set-delegate ; M: dns-stream stream-read tuck delegate stream-read dup length pick dns-stream-counter + rot set-dns-stream-counter ; In realization of stream-read method we have four different shuffling words - tuck, dup, pick and rot. It is simpliest solution I've found with ordinal shufflers. Let's explain true meaning of used shufflers

The Evaluate Service on MacOS X needs more vocabsready

Stefan Scholl — 2008-04-21T14:49:54

[MacOS X 10.4.11 Intel, git factor 1 or 2 days old.] I entered "20 20 * ." in a Mac program that supports the use of the Services menu. Marked it and after Services -> Factor -> Evaluate Selection I get :1 20 20 * . ^ Word not found in current vocabulary search path "delegate" f "name" "*" The following restarts are available: :1 Use the word IN: math MATH: * ( x y -- z ) Type :help for debugging help.

csv parser (and git troubles)

Phil Dawes — 2008-04-19T20:58:49

Hi Slava, Hi factor list, I've been experimenting with git and have put a factor repository on my webspace which contains the csv parser vocab I wrote a few months ago. http://phildawes.net/2008/factor.git Unfortunately when I try to pull I get: $ git pull http://phildawes.net/2008/factor.git error: pick-rref: HEAD not found No such ref HEAD at http://phildawes.net/2008/factor.git Which I don't understand because HEAD is readable. I suspect it may be the same problem as here[1]. Anyway, pulling the master branch explicitly appears to work: $ git pull http://phildawes.net/2008/factor.git master Fetching refs/heads/master from http://phildawes.net/2008/factor.git using http got b2e540e2a92df1cb7bf6ee15ddf678e7d14379ed walk b2e540e2a92df1cb7bf6ee15ddf678e7d14379ed got e136ec03c40ee883c2504726489e68498d7bf3c4 ... etc... Is this sufficient for inclusion into the main factor repo? Also what's the usual protocol for getting stuff included into Slava's factor repo - do people email privately? Thanks, P

Factor in wine :-)

Stefan Scholl — 2008-04-19T11:22:54

OK, more as a joke I wanted to run a current Factor Windows binary with wine on my MacOS 10.4 system: $ wine factor.exe -run=listener fixme:spoolsv:serv_main (0 0x0) err:wgl:X11DRV_wglGetProcAddress No libGL on this box - disabling OpenGL support ! err:wgl:X11DRV_wglGetProcAddress No libGL on this box - disabling OpenGL support ! err:wgl:X11DRV_wglGetProcAddress No libGL on this box - disabling OpenGL support ! The die word was called by the library. Unless you called it yourself, you have triggered a bug in Factor. Please report. Starting low level debugger... Basic commands: q -- continue executing Factor - NOT SAFE im -- save image to fep.image x -- exit Factor Advanced commands: [...] .c ==== CALL STACK: [ kernel:call threads:stop ] 0 11f1e1b 501d1f0 [ kernel:>r kernel:>r kernel:dup kernel:slip kernel:r> kernel:r> kernel:roll [ kernel:>r kernel:tuck kernel:2slip kernel:r> kernel:while ] [ kernel:2nip kernel:call ] kernel:if ] 3 978f4b 4fdd0f0 [ kernel:>r

Broken link

Ricardo Boccato Alves — 2008-04-16T21:56:54

Hi, Just a minor detail, the link to the factor repository in http://factorcode.org/getfactor.fhtml is not working. It directs to: http://factorcode.org:8812/responder/cgi/gitweb.cgi and I think it should go to: http://factorcode.org/responder/cgi/gitweb.cgi []s, Ricardo Boccato Alves. ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone

Brave new world

Eduardo Cavazos — 2008-04-15T09:00:29

Hello, One of the onions in Factor world (to me anyway) has been the dilemma of finding the "one true effect". Even when you find the supposed "one true effect", there are still exceptional cases which require an accompanying shuffle word. Another dilemma has been finding a "grand unified theory of stack effects"; a sort of philosophy behind the effects which would inform the design of future words. I'm going a different route, embracing the diversity of effects instead of rejecting it. The way down this route is to give names to each variant. The following generic words work on sequences and tables (assocs): ---------------------------------------------------------------------- GENERIC: at ( col key -- val ) GENERIC: of ( key col -- val ) ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! GENERIC: grab ( col key -- col val ) ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! GENERIC: is ( col key val -- col ) GENERIC: as ( col val key -- col )! "S

Assorted Questions

Nikhil Marathe — 2008-04-14T07:56:33