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World: r3wp

[Core] Discuss core issues

Gabriele
23-Sep-2008
[10961]
Graham, in R3's http you can use any method you want, with any headers 
you want and any content you want. Was this your question? (I do 
still need to add transparent cookie support. but that's a few minutes 
work, so it'll be there for release.)
Louis
23-Sep-2008
[10962]
Henrik, that worked. Many thanks!
Henrik
23-Sep-2008
[10963]
congrats :-)
Graham
23-Sep-2008
[10964x4]
Gabriele ... I probably did ask that question and it's good to know 
the answer is affirmative.
But since we are stuck without R3 at present, I'm needing to patch 
the R2 prot-http so that we can use all the headers.
methods.
What's the situation with timeouts in R3?
Gabriele
24-Sep-2008
[10968]
not too good yet. but, i know Carl has that internally, it's just 
not exposed.
Will
24-Sep-2008
[10969]
has the forward recursion problem from http been fixed in R3 ?
BrianH
24-Sep-2008
[10970]
The HTTP handler and the entire port model is completely different 
in R3, so they have almost no code in common. R3 will have an entirely 
new set of bugs to worry about :)
Graham
24-Sep-2008
[10971]
that's very reassuring Brian.
BrianH
24-Sep-2008
[10972x2]
Here's something to reassure you: Gabriele wrote the HTTP scheme 
for R3.
Don't worry about the port model changes - the new model is much 
better.
Graham
24-Sep-2008
[10974x3]
Yes, I saw it .. didn't understand a thing as usual!
What I was wondering though was, why should a protocol timeout even 
though it is still actively communicating ie. sending data to a port?
and presumably receiving acks back
BrianH
24-Sep-2008
[10977x3]
Don't presume, check. If you don't get the ack in time, timeout.
I haven't written a network protocol in either port model yet (just 
studied them), so I can't say why you are getting timeouts in this 
particular case though.
Later...
Robert
4-Oct-2008
[10980]
load/all: Does this skip everything until a REBOL header is found?
Chris
4-Oct-2008
[10981]
No -- /all assumes all text is data and that the header, if present, 
is two more values.
Gregg
4-Oct-2008
[10982]
It can be a bit tricky. LOAD ignores all *lines* before the one where 
"^/REBOL []" is found.


Sunanda is probably the preeminent expoert here, as he dealt with 
all kinds of loading issues for REBOL.org.
Chris
4-Oct-2008
[10983]
That's 'load though, not 'load/all
Sunanda
4-Oct-2008
[10984]
I'm not the expert (thanks all the same, Gregg) but I did start a 
ML thread in which the real experts looked at key aspects of load 
and 'load/all for scripts:
http://www.rebol.org/ml-display-thread.r?m=rmlTRFQ
Gregg
4-Oct-2008
[10985]
Correct.
Terry
4-Oct-2008
[10986]
what's the best way to stich some strings in a block together? 
ie: "this is a test here"

where I parse this, set the first word to 'one, set the second to 
'two and everything after that to 'three ?
Tomc
4-Oct-2008
[10987x3]
one un-tried way
parse/all str[ 
  (blk: copy []} 
  2 [copy token to " " (insert tail blk token)] 
  copy token to end     (insert tail blk token 
  -- do something with blk
  )
]
(blk: copy [])
Terry
4-Oct-2008
[10990]
Hmm.. my brain is too lazy...  I went like this.. 
ie: "this is a test here" 
a: parse ie none
one: first a
two: second a
three: reform skip a 2
sqlab
5-Oct-2008
[10991]
parse/all ie [copy one to " "  skip  copy two to " " skip copy three 
to end]
Chris
5-Oct-2008
[10992]
; Terry, with 'take (2.7.6+?) it can be shorter still:

three: parse ie none
one: take three
two: take three
three: reform three
Terry
5-Oct-2008
[10993x2]
cool.
curious now as to which way is faster?
Tomc
5-Oct-2008
[10995]
so the mention of a block in your original question wasn't an actual 
trequirement
Terry
6-Oct-2008
[10996]
yeah, I was thinking post parse
BrianH
6-Oct-2008
[10997x2]
TAKE is slower in R2.7.6+ than R3 because it is a mezzanine (but 
useful for forward compatibility), and because REMOVE from the beginning 
of a series is faster in R3. A faster way to do your last example 
is this:

set [one two] three: parse ie none
three: reform skip three 2
TAKE is one of the most useful new backports from R3 though :)
Terry
6-Oct-2008
[10999x2]
Another question. Let's say I have a func .. xyz: func[msg] [print 
msg]

and I have a string "xyz this message" that I convert to a block 
 blk: [xyz "this message" ]

How can i set xyz in that block to equal my xyz function.. so that 
I can DO the block and end up with 
this message
 
?
In other words, execute a string as though it was a function?
Sunanda
6-Oct-2008
[11001]
Like this?
xyz: func[msg] [print msg]
blk: [xyz "this message" ]

blk/1: :xyz   ;; set the first entry to be the function
do blk         ;; then do it
this message  ;; result!
Terry
6-Oct-2008
[11002x2]
what if you don't know that bkl/1 will be xyz?
hmm.. this works
do load blk
Sunanda
6-Oct-2008
[11004]
If you are sure that bl/1 is the word that holds a function:
  do get to-word blk/1 blk/2
You'll need some error trapping.
Terry
6-Oct-2008
[11005]
yeah.. and some validation too.
Sunanda
6-Oct-2008
[11006]
Do load only seems to do what you want:
 do load ["xxx" "xxx" "xxx" "xxx" "end"]
== "end"
Chris
6-Oct-2008
[11007x2]
; Also:

do load/next "xyz This Message" ; is the same as
do [xyz " This Message"]
func [cmd][
	all [
		cmd: attempt [load/next cmd]
		word? cmd/1
		value? cmd/1
		any-function? get cmd/1
		do cmd
	]
]
Graham
7-Oct-2008
[11009x2]
Never noticed this before
>> to-file join %test "[0].png"
== %test%5B0%5D.png