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World: r3wp

[Core] Discuss core issues

PeterWood
10-Oct-2006
[5535x3]
Try dowloading DideC's excellent delete-mail program - http://membres.lycos.fr/didec/rebsite/delete-emails/delete-emails3.0.0.html
It will let you look at the headers of the mail in your mailserver's 
inbox.
You can delete messages that are causing problems before you dowload 
them.
Louis
10-Oct-2006
[5538]
Thanks, Peter. I'll try that and let you know what happens.
PeterWood
10-Oct-2006
[5539]
There''s a more up-to-date version at http://membres.lycos.fr/didec/rebsite/delete-emails/delete-emails.r
Louis
10-Oct-2006
[5540x7]
Some code is missing in DideC's script.
Whoops. Didn't see your post in time.
Error message says the site might be down.
No. It opens now.
I'm not having much sucess today. I downloaded it, but it dies instantly 
when I try to fetch my mail.

Erro Signature
AppName: rebol.exe	 AppVer: 1.3.2.3	 ModName: rebol.exe
ModVer: 1.3.2.3	 Offset: 00031983
That is a windows error message, and just the first part of it.
Is that script working for anyone else? I mean that version of the 
script?
PeterWood
10-Oct-2006
[5547]
I run version 3.1.1 with Rebol 1.2.10
Louis
10-Oct-2006
[5548]
I'm running: REBOL/View 1.3.2.3.1 5-Dec-2005 Core 2.6.3

I'll see if I have an older version on my harddrive somewhere.
PeterWood
10-Oct-2006
[5549]
I also downloaded the latest version and got a similar error on 1.3.2.
Anton
11-Oct-2006
[5550]
Louis, try this:

do http://anton.wildit.net.au/rebol/util/preview-mail/preview-mail.r
Oldes
11-Oct-2006
[5551x2]
Script: "view-message" (2-Aug-2006)
connecting to: anton.wildit.net.au
** Script Error: Cannot use path on none! value
** Where: open-window
** Near: win-pos: prefs/data/win-pos
if all [block? win-pos main-pos: win-pos/main]
system/version == 1.3.2.3.1
Anton
11-Oct-2006
[5553x3]
Thank you Oldes. It looks like the problem is that somewhere there 
is an assumption that the prefs have loaded from disk. Hang on...
Ok, bug fixed.  Try again, Louis.
(The script is now one word shorter - I love bug fixes like that. 
:)
PeterWood
11-Oct-2006
[5556]
I managed to get a working copy of Didec's delete-emails to Louis 
by pasting it in a private message. It seems to have allowed him 
to resolve his problem.
Anton
11-Oct-2006
[5557]
Ok, very good.
Louis
11-Oct-2006
[5558]
PeterWood and Anton, many thanks! It turned out that one of my children 
sent me a file with many huge photos. The very slow dialup connection 
I have here in Indonesia could not (or perhaps is designed to not) 
handle it. I was able to delete the file and all is well, except 
that now I can't look at the photos, at it cost me two days trying 
to solve the problem. I probably could not have solved it at all 
without you guys.
Ladislav
13-Oct-2006
[5559x6]
User poll
How many users would like (or at least not object against) adding 
BUILD as an official mezzanine?
Comparison of BUILD and REDUCE/ONLY:
1) REDUCE/ONLY does not allow you to specify which words to evaluate, 
which would be safer, it rather specify which words to *not* evaluate
2) REDUCE/ONLY isn't /DEEP, i.e. it does not process subblocks
3) The evaluated words are local for BUILD
http://www.fm.tul.cz/~ladislav/rebol/build.r
(How many users would use BUILD?)
Henrik
13-Oct-2006
[5565x4]
would that mean:

>> build [1 [3 + 2 now]]
== [1 [5 13-Oct-2006/11:16:56+2:00]]

?
because that's the kind of build I would be interested in
hmm... no it wouldn't. :-(
I don't have anything against BUILD, but I need to be convinced more 
on the practical uses, because I can't see how this makes block building 
any easier. Perhaps some more examples would be good. :-)
Gregg
13-Oct-2006
[5569]
Examples contrasting compose (with /only and /deep) and reduce/only, 
would be great. I know it has a couple in the script. I've looked 
at it in the past, but haven't been driven to add it as a standard 
part of my process yet.
Ladislav
13-Oct-2006
[5570x2]
Henrik: Build can do it using one of the following ways:

    build [1 [ins 3 + 2 ins now]]
    build [1 only reduce [3 + 2 now]]
    build/with [1 inner] [inner: reduce [3 + 2 now]]


OTOH, your example is quite specific and not very general (I would 
say that it as a task for REDUCE/DEEP)
(except for the fact, that REDUCE does not have a /deep refinement)
Henrik
13-Oct-2006
[5572]
I think some practical examples are needed, for example in building 
some HTML for a webpage. Something that shows that BUILD is significantly 
easier than a combination of REDUCE and COMPOSE.
Ladislav
13-Oct-2006
[5573]
building some HTML for a webpage
 - BUILD builds blocks not HTML
Henrik
13-Oct-2006
[5574]
ok, a layout block then?
Ladislav
13-Oct-2006
[5575]
the example Mike liked is:

    view layout build/with [
        box 600x600 effect [
            draw [
                spider [
                    size 600x600
                    ; offset 100x100
                    pen black
                    scale 4
                    ; scale [0 150 300 450 600]
                    categories [

                        "Category 1" "Category 2" "Category 3" "Category 4"

                        "Category 5" "Category 6" "Category 7" "Category 8"
                    ]
                    directions
                    pen red
                    data [100 200 300 400 500 600 700 800]
                    pen blue
                    data [100 100 100 100 100 100 100 100]
                ]
            ]
        ]
    ] [spider: :spider*]

(it builds a DRAW block creating a Spider graph)
Henrik
13-Oct-2006
[5576]
** Script Error: spider* has no value
** Where: build
** Near: spider: :spider*
Ladislav
13-Oct-2006
[5577]
Spider is: http://www.fm.tul.cz/~ladislav/rebol/spider.r
Henrik
13-Oct-2006
[5578]
>> do http://www.fm.tul.cz/~ladislav/rebol/spider.r
connecting to: www.fm.tul.cz
Script: "Spider" (8-Sep-2006/16:40:58+2:00)
** Script Error: lfunc has no value
** Near: spider*: lfunc [
    [catch] 

    description [block!] "a block containing a description of a chart"
] [] [
    current-...
>>
Ladislav
13-Oct-2006
[5579]
use INCLUDE as follows:

do http://www.fm.tul.cz/~ladislav/rebol/include.r
append include-path http://www.fm.tul.cz/~ladislav/rebol/
include %spider.r
Henrik
13-Oct-2006
[5580]
it wants to find the file in my local cache before the remote one 
and crashes:

>> do http://www.fm.tul.cz/~ladislav/rebol/include.r
connecting to: www.fm.tul.cz
Script: "Include" (5-Jan-2006/14:31:42+1:00)
>> append include-path http://www.fm.tul.cz/~ladislav/rebol/
== [%. %/Volumes/c/rebol/ http://www.fm.tul.cz/~ladislav/rebol/]
>> include %spider.r
connecting to: www.fm.tul.cz
** Access Error: Cannot open /Volumes/c/rebol/spider.r
** Where: include-script
** Near: found: load/all target 
if header
>>

Sorry, if I'm being a little difficult :-)
Ladislav
13-Oct-2006
[5581]
no problem, checking what went wrong in your case
Henrik
13-Oct-2006
[5582]
>> what-dir
== %/Volumes/c/rebol/

if that helps.
Ladislav
13-Oct-2006
[5583x2]
OK, give me a few minutes to check the versions
aha, this looks like a result of the last INCLUDE change. It is surprising, 
that nobody noticed it yet.