World: r3wp
[RAMBO] The REBOL bug and enhancement database
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Robert 15-Mar-2006 [1621] | How about returning than either FALSE or NONE which every was hit? That makes sense to me. So I can ensure that my app returns FALSE and that this value is returned. But now I return FALSE and get back NONE. |
Rebolek 15-Mar-2006 [1622] | If you want to return FALSE instead of NONE, use FOUND? >> found? any [true true false] == true >> found? all [true true false] == false |
Pekr 15-Mar-2006 [1623] | :-) |
Coccinelle 15-Mar-2006 [1624] | I don't see the problem with either any [...][yes][no] : >> either ANY [true false]["yes"]["no"] == "yes" >> either ANY [false false]["yes"]["no"] == "no" |
Gabriele 15-Mar-2006 [1625x2] | robert: either takes any value, false or none are "false", anything else is "true". |
also, yes, found? is the default way to make a value into a logic! . not is also a nice way to do that, when you can/need to reverse the logic. | |
Robert 17-Mar-2006 [1627x2] | found? is the most elegant one so far. But the word's meaning isn't that good in such a case. I didn't searched anything... |
Using EITHER and hence mapping the result on TRUE or FALSE is IMO a hack. It works (that's how I do it) but it's not logical. Maybe a refinment for ANY and ALL makes sense. ALL/logical and ANY/logical I can see situations where it's very handy that ANY will return the result of some actions and not only TRUE and FALSE. | |
Gregg 17-Mar-2006 [1629x2] | You can use TO LOGIC! directly, or write a mezz with a better name, that wraps it. |
Something like RESULT? maybe, and it could also handle unset values if that's needed. | |
Rebolek 17-Mar-2006 [1631] | Robert: I think, ANY and ALL are meant for little bit 'wilder' things than returning TRUE or FALSE. Remember they return *AT* first false or none, it's not that they should return FALSE - which is important simple example >> a: 5 == 5 >> all [a < 3 a: a + 1] == none >> a == 5 >> a: 1 == 1 >> all [a < 3 a: a + 1] == 2 >> a == 2 |
Robert 17-Mar-2006 [1632] | Yes, I know. And I often use this feature as well. That's why I think the refinement approach is best. |
ChristianE 17-Mar-2006 [1633x4] | >> true?: :found? >> true? all [conditon-1 conditon-2 conditon-3] >> true? any [conditon-1 conditon-2 conditon-3] |
A bit surprising though is: | |
>> true? all [] == true | |
At least it conforms to it's description saying "Shortcut AND. Evaluates and returns at the first FALSE or NONE." There was no first none or false. | |
[unknown: 10] 20-Mar-2006 [1637x3] | double colors in 'draw dilect does crsh view... Is that known? |
Without the use of line-pattern.. | |
effect: [ draw [ pen gray silver line-width 15 line-join round line 22x220 150x350 ] ] | |
Anton 21-Mar-2006 [1640] | I confirm on WinXP. |
DideC 21-Mar-2006 [1641] | So am I. |
Maxim 21-Mar-2006 [1642] | discovered it last week... I imagined it was a known bug... but I didn't check ':-/ |
DideC 21-Mar-2006 [1643x2] | It's in RAMBO #4040 http://www.rebol.net/cgi-bin/rambo.r?id=4040& |
Cyphre said it's fixed, but not release yet (if I understand correctly) | |
Rebolek 21-Mar-2006 [1645] | Yes, I think I reported that bug to Cyphre during work on Compo demo. I hope there will be upgrade to View to fix this and other bugs, but I'm afraid that with R3 behind the door (you now, in just couple of days we're going to see the roadmap ;-), bugfixes for current View will be late. |
Pekr 21-Mar-2006 [1646x2] | :-) so we've got more couples of days, so what :-) |
but look, I am not sure - Carl told us that submissions for 1.3.3 should be submitted by us .... why Rebol 3.0 should prevent new View release, if bugs are already fixed? It is worth release then, even if no new additional functionality is released (as rich-text etc.) | |
Anton 25-Mar-2006 [1648] | Just noticed daylight savings ended. Windows changed the timezone from +11:00 to +10:00, but rebol still reports >> now == 26-Mar-2006/2:09:58+11:00 |
Vincent 26-Mar-2006 [1649] | RAMBO #3650 "crc32 function added to checksum" - I have just contributed a crc32 function to the rebol library. It's quite slow, but the rebcode version is fast enough. CRC-32 is still used by common tools (archivers...), and an implementation in the 'checksum native would be useful. |
Graham 26-Mar-2006 [1650] | Do all these crc functions require the whole file to be read into memory? |
Vincent 26-Mar-2006 [1651x2] | Yes - both the native 'checksum and the published 'crc-32 works on a string! or a binary!, not a port! . For crc-32, the crc must be initialized at start, and complement'ed (bitwise 'not) at end. |
- I have an internal function in crc32.r who allows working with big files and stream, but it isn't fully documented. | |
Graham 26-Mar-2006 [1653] | does it work though ? :) |
Vincent 26-Mar-2006 [1654] | well, I hope so - it's the fundamental brick ;) but it's not intuitive, usage exemple (depends of port access mode...): crc: -1 while [not empty? data] [ctx-crc-32/update-crc data crc data: copy/part source length] crc: crc xor -1 |
Graham 26-Mar-2006 [1655] | so, it has minimal memory use with gigabyte size files? |
Vincent 26-Mar-2006 [1656] | crc-32.r with gigabytes files: [don't do it] - it works, the memory used isn't size relative - but on a 1GHz PIII, the speed is < 300 kbytes/s! rebcode version is a lot faster (>2Mbytes/s), but 1) rebcode isn't part of official releases 2) the rebcode version of 'crc-32 needs whole file in memory. so, back to RAMBO: #3650 - I vote for 'crc32 as another 'checksum/method, and maybe a RAMBO ticket for a port aware version of 'checksum would be a good idea. |
Oldes 6-Apr-2006 [1657x3] | I think this is a bug: >> read http://www.paseka.cz/obalky%5C80-7185-652-5.jpg ** User Error: URL error: http://www.paseka.cz/obalky\80-7185-652-5.jpg ** Near: read http://www.paseka.cz/obalky\80-7185-652-5.jpg |
What can I do? | |
I don't want to translate the url encoded chars:( >> http://www.paseka.cz/obalky%5C80-7185-652-5.jpg == http://www.paseka.cz/obalky\80-7185-652-5.jpg | |
Anton 6-Apr-2006 [1660x2] | This works: >> net-utils/url-parser/parse-url port: make port! [scheme: 'http] "http://www.paseka.cz/obalky%5C80-7185-652-5.jpg" >> port/target == "obalky%5C80-7185-652-5.jpg" >> port: open port connecting to: www.paseka.cz >> close port >> port: open/binary port connecting to: www.paseka.cz >> bin: copy port == #{ FFD8FFE000104A46494600010100000100010000FFDB00430008060607060508 0707070909080A0C140D0C0B0B0C1912130F141D1A1F1E1D1A1C1C20242E... >> close port >> image: load bin == make image! [200x280 #{ 968662958665918168584B3A2A1D15281E1C241B1C1D1717211D1C211D1A 1F1E1A1F1E1A1F1D1E1F1D20211C23211C23211C202... |
(Oops! Obviously you can remove the first open & close port in text mode. Not necessary.) | |
Oldes 6-Apr-2006 [1662] | I understand, thanks. Anyway, I submited it into Rambo. |
Anton 6-Apr-2006 [1663] | Ahh.. of course you do! (I thought it was strange me helping Oldes.) |
Gabriele 6-Apr-2006 [1664x2] | encode the % as %25 |
ie. use http://www.paseka.cz/obalky%255C80-7185-652-5.jpg | |
Cyphre 7-Apr-2006 [1666x4] | what about this? |
read to-url "http://www.paseka.cz/obalky%5C80-7185-652-5.jpg" | |
or more correct in this case: pic: load read/binary to-url "http://www.paseka.cz/obalky%5C80-7185-652-5.jpg" | |
sorry, this is correct: pic: load to-url "http://www.paseka.cz/obalky%5C80-7185-652-5.jpg" | |
Ladislav 19-Apr-2006 [1670] | I am having a serious problem: parse [*] ['*] ; == true but >> parse [/] ['/] ** Syntax Error: Invalid word-lit -- ' ** Near: (line 1) parse [/] ['/] The same problem exists for '// . Is there a way how to circumvent it? |
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