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World: r3wp

[RAMBO] The REBOL bug and enhancement database

Anton
17-Oct-2006
[1871]
No, I was looking forward to using it. I've been avoiding the overhead 
of maintaining another patch script by using
	if error? set/any 'err try [...]
over and over...
Ladislav
17-Oct-2006
[1872]
usage:

    try/recover [...] 'error [print disarm error]
Anton
17-Oct-2006
[1873]
The pity is more from the "richness of human expression" point of 
view. I can understand the more conservative "don't fill up the default 
namespace with too many functions" point of view too..
Ladislav
17-Oct-2006
[1874]
(i.e. the usage will be the same as the usage of the Default function)
Anton
17-Oct-2006
[1875x2]
Ok, that's not bad. It does cut down 9 characters.
Oh I think I remember the discussion now.
Ladislav
17-Oct-2006
[1877x2]
The advantage of "reusing" TRY is, that the code will be easier to 
maintain this way (TRY and DEFAULT would have a lot of common code 
otherwise)
(I am speaking about interpreter code above)
Anton
17-Oct-2006
[1879x3]
Yes, that is good reasoning.
I am satisfied once again.
#4124 "set-modes doesn't work on file directories" - maybe add a 
note to Paul here that "the filesystem may not support setting all 
of the modes that are gettable by get-modes. For instance you can't 
set modification-date, but you can set the owner-write flag." Maybe 
there should be a more informative access error type, not just "Cannot 
open ...".
Graham
17-Oct-2006
[1882]
but it should work in windows
Maxim
17-Oct-2006
[1883]
will you be online for a few minutes?
BrianH
17-Oct-2006
[1884x2]
Anton, error #4124 is not a filesystem problem. I replicated it here, 
on NTFS, in a directory that I have permission to do anything. NTFS 
supports changing the modification date of directories - I have an 
Explorer shell extension that does just that, as well as a command 
line touch utility. REBOL can change that attribute on files, but 
not directories. REBOL is probably hust using the wrong API.
hust -> just (typo)
Pekr
17-Oct-2006
[1886]
different API - maybe the same goes with TimeZone info .... Ladislav 
found new pointer .... currently under investigation ...
Anton
18-Oct-2006
[1887]
Ok Brian, thanks for the clarification. Maybe that info should be 
added to the ticket "NTFS supports changing the modification date 
of directories..."
Henrik
22-Oct-2006
[1888]
I accidentally put a string in the font size, like this:

view layout [area font [size: "m"]]


Windows gives me a small font, which seems right. On OSX I either 
get screen trashing inside the text area, hanging or a segmentation 
fault.
Robert
23-Oct-2006
[1889]
Is there any simple way to add a screenshot upload function to the 
RAMBO script? Or has anyone done it already?
Anton
23-Oct-2006
[1890]
No, and the RAMBO source is not open, as far as I know.
Henrik
24-Oct-2006
[1891]
can anyone make the layout code I wrote above crash in Linux? I don't 
have Linux handy...
Volker
24-Oct-2006
[1892x2]
survives here.
font is smaller
Rebolek
24-Oct-2006
[1894x2]
Actually, I see quite the opposite. Using following code:

view layout [text "MIQXA" text "MIQXA"  font [size: "m"]]


the second line is bigger .I'm trying this on xubuntu 6.06 (using 
area has same results, but area is much bigger than text so it's 
harder to notice).
I'm rebooting to Win to see the difference.
so I tried on Win and the second line is so small so it's unreadable 
(font size 1 or something like that)
Henrik
24-Oct-2006
[1896x3]
yes, I know. It segfaults on OSX so I wondered if it happened under 
Linux as well.
oh, you wrote about it. I didn't notice volkers input. sorry.
I will rambo it if there are no objections.
Anton
24-Oct-2006
[1899]
No objections on anything that causes a segfault (unless, of course, 
it's already in rambo somewhere.)
Anton
26-Oct-2006
[1900x2]
; Crash
write %test.r {rebol [] do %test2.r probe system/script/args}

write %test2.r {rebol [] system/script/parent: none} ; <-- naughty 
parenticide

do %test.r ; <-- DO file makes an error but doesn't really survive
do %test.r ; <-- so this second attempt shuts down console
DO probably needs to hang on to the original system/script object, 
and restore it after the child script has returned.  The child script 
could probably also modify attributes of the parent object and leave 
the parent script confused.
Maxim
26-Oct-2006
[1902]
strange, I didn't even know about /parent !!
BrianH
26-Oct-2006
[1903]
I like the idea from the R3 blogs about having SYSTEM be a function 
that generates objects, rather than an object. That way system/script 
would return an object that wouldn't mess up the infrastructure when 
it is changed.
Maxim
26-Oct-2006
[1904x3]
its always safer to have hooks and apis, than direct data.
which is why I dearly hope R3 adds accessors.
many points in many r3 discussion would be moot with this simple 
concept added to a new class! or current object! engine.
BrianH
26-Oct-2006
[1907]
I have been a big advocate of accessors here and in the blog comments, 
though mostly for interoperability with other object models that 
have them (all of the major platforms now). Safety is a good reason 
for them as well.
Maxim
26-Oct-2006
[1908x3]
and invisible datatype... with accessors, I could code a liquid api 
which is completely hidden from users... totally non-aggressive to 
the way they currently code and yet still allow custom types of liquid, 
just by changing how the accessors are built.
I could do magic objects  ;-)
anyways... I'm getting OT... (rambo list)
BrianH
26-Oct-2006
[1911]
Indeed.
Pekr
26-Oct-2006
[1912]
what do you mean by "accessor" in rebol terms?
Anton
27-Oct-2006
[1913]
So, no objections to me creating a ticket for that ?
Ladislav
27-Oct-2006
[1914]
no objections from me
BrianH
27-Oct-2006
[1915]
Petr, there were discussions in the R3 blog about accessors. It's 
quicker to just look there.
Pekr
27-Oct-2006
[1916]
I think I understand - it is simply that some "variable" is not variable, 
but a function? In Visual Objects, we could define variable being 
an accessor, you then normally used oMyObject:myVar: 3 - which could 
mean - you either assign it to variable, or (if an accessor), the 
same syntax is being used, but it was passed as a parameter to function, 
which could do type checking, whatever ...
BrianH
27-Oct-2006
[1917]
Yup, something like that. Accessors were introduced in Self, then 
ported to Delphi (as properties), then from there to ActiveX, Java 
(as a coding convention), C# (and the rest of .NET), and then many 
other modern languages and platforms (most of the major ones).
Maxim
27-Oct-2006
[1918x2]
python is defined from ground up with accessors, you can replace 
the in-built datatypes!!!
I guess self is like that also.
BrianH
27-Oct-2006
[1920]
Python is designed that way now, but it didn't start that way. That's 
something I like about Python - when they add new features in a new 
version, they are not afraid to redesign the whole system to take 
advantage of the new features.