jamshred updates

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deployment not working?

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Bug in CSV parser

Hi Phil,

Try parsing the following:

"foo \"bar\" bar" <string-reader> csv

Also perhaps lines starting with # should be ignored as comments?

Slava

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git on cygwin

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

And now factor.sh is gone. 

--

-- 
Web (en): http://www.no-spoon.de/ -*- Web (de): http://www.frell.de/

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csv issue with "foo"\n

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
@@ -46,9 +46,11 @@ IN: csv.tests
 [ "Year,Make,Model\n1997,Ford,E350\n2000,Mercury,Cougar" 
    <string-reader> csv ] named-unit-test

-   
+"Quoted field followed immediately by newline"
+[ { { "foo" "bar" }
+    { "1"   "2" } } ]
+[ "foo,\"bar\"\n1,2" <string-reader> 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
@@ -31,6 +31,7 @@ VAR: delimiter
   read1 dup 
   { { CHAR: "    [ , quoted-field ] }  ! " is an escaped quote
     { delimiter> [ ] }                 ! end of quoted field 
+    { CHAR: \n   [ ] }
     [ 2drop skip-to-field-end ]       ! end of quoted field + padding
   } case ;

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Bug reports

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Modernized the bunny demo; new spheres demo

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".

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git woes

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

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Status of ARM-Linux?

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

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What is a good definition ?

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
                          [ 1- among [ append ] with map  ]
                          [ among append ] 2bi
                        ] }
         { [ 2dup = ] [ 3drop 1array ] }
         { [ 2dup > ] [ 2drop 2drop {  } ] }
     } cond
;

Real problems appear now. I have a solution but:
- how to be sure it's efficient ?
- if after writing it I discover word "unclip" is it useful, or more  
elegant, to reshape definition to replace "1 cut" ?
- how to be sure that my definition is readable ?
- without knowing deeply factor, how i know which part of code I must  
optimise, and how ?

The only obvious point is that there is a simpler and more idiomatic  
way to do but experience comes slowly...

JF

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Interesting use of 'fry'

Hi all,

I'm working on the web framework and came up with this:

: render-plain-list ( seq component quot -- )
     '[ , component>> renderer>> @ ] each ; inline

: render-ordered-list ( seq quot component -- )
     <ol> '[ <li> @ </li> ] render-plain-list </ol> ; inline

: render-unordered-list ( seq quot component -- )
     <ul> '[ <li> @ </li> ] render-plain-list </ul> ; 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

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