World: r3wp
[!REBOL3-OLD1]
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Graham 9-Apr-2009 [13040] | I used hash! for my Bayes based spam filtering program. |
Pekr 9-Apr-2009 [13041] | Wasn't map supposed to be a hash! replacement plus/minus few differences in behaviour? |
Henrik 9-Apr-2009 [13042] | I think I have a fix for the guest N bug in chat. |
Sunanda 9-Apr-2009 [13043x2] | Carl recommending hash! here: http://www.rebol.com/article/0020.html Second thoughts for R3 here: http://www.rebol.net/r3blogs/0052.html |
And some refinements to the redesign here: http://www.rebol.net/r3blogs/0137.html | |
shadwolf 9-Apr-2009 [13045x9] | look the what's wrong part of the articles you gave sunanda that's clear |
2. You cannot use keys directly as indices. | |
damn !! for a hash table using keys as indice isn't it the what is it all about thing ? | |
1. All values are keys, even the content values. ... stupid since they can't be indice | |
you want me to continue puttinf dot on i and bars on T sunanda or you got why hash! is meaningless ? | |
3. You cannot add new values using the key value assignment form. ->> too bad ... so i can't do cycling tables using hash inidice wich is lesson 3 for C programming any decent university | |
You have no control over case-sensitivity for hashes. | |
So, what do we want to do about it? We are at a point where we need to finalize the hash datatype for REBOL 3.0. It is possible to make some change | |
and since doing some change in an incomplete things is worst than redoing it from scratch then it's better to forget about it and create map! | |
Pekr 9-Apr-2009 [13054x3] | here's some map! doc - http://rebol.net/wiki/Map- isn't it replacement for hash!? |
btw - we have 'map function. This is imo confusing. We sometimes use shortcuts, e.g. for make object! we have 'context. Will not users expect 'map being a shortcut for make map! ? | |
btw - it was extremly difficult to find above Map link. The DocBase structure is completly twisted. | |
shadwolf 9-Apr-2009 [13057x6] | can't be more clear on the matter |
A map is an name-to-value associative array. It uses hashing for high performance. Sometimes this kind of association is also referred to as a dictionary. The map datatype replaces the R2 hash datatype. The motivation for this replacement was that some people in the user community felt the design of the older hash datatype was confusing, since it hashed both keys and their data. The new map datatype just hashes keys. Data is not hashed. | |
when do you need hash ... hum when you deal with a database to make a cashing system to not have to use the database access on any request for example | |
or when you want to do a similar thing like a dictionnary (for search engine design are widely derived from hash table concept) | |
or more simply to be able to travel through a large number of complexe data | |
the faster possible | |
Pekr 9-Apr-2009 [13063] | so what you are trying to say is - positive, or negative? I somehow don't understand, what you mean by all of that :-) |
shadwolf 9-Apr-2009 [13064x3] | it's only a technology some usefull stuff for the one needing them |
for the one that doesn't need them well ... they don't need it but if you have to reduce a langage to only what only 1 specific guy need you will not go any far | |
hash! being redisigned and enhanced how could i get that as a lame thing that great I don't know personally if it will benefits me but it's cool to have this for the one needing it | |
Henrik 9-Apr-2009 [13067] | The "more 3365" error in chat is because we are not under the correct topic, when trying to get that file. I will try to figure out how to fix that. |
shadwolf 9-Apr-2009 [13068x3] | for example for the area-tc (which renders full live colored text) during long time I expected to organise the date to parse or the line as hash! to be able to locate them faster (since my data structure was pos char color making hash getting the position as indice was a good idea (well a much better idea was proposed by steeve simpler but all mighty efficient) |
but in R2 hash! keys can't be indice and all is key so i never get to get a hash table based system | |
for area-tc project | |
Pekr 9-Apr-2009 [13071] | shadwolf - then it is time to start to move your project to r3, no? I think that View kernel itself might be in slightly better shape than in R2 (but maybe I am wrong - I noticed some font ugly display problems) |
shadwolf 9-Apr-2009 [13072x5] | Pekr r3 doesn't exist ... I know i'm a stubborn moron ^^ that's my way to be 1st it's on R2 complete and full wrokking then i will adapt it to rebGUI then i will do REBOL IDE then in that time R3 will be official released and i will do the port |
since work is in progess and unstable it's hard to get serriously depending on it... | |
that's not that i don't like R3 or the new VID etc ... but what guaranty i have the actual R3/VID won't get the same destiny VID 3.4 got ? | |
pekr font ugly problem have been solved in a way and if font ugly issues are not of my consern you want to blame someone blame CArl since the time we say him that there is still bug in R2 and he doesn't want to fix them ... in that matter you can see R3 as a way for carl to escape the pain of fixing R2 countless bugs | |
font-fixed seems to not exists on MacOS X ... and since the whole positioning system is base on fixed-font that means no area-tc for mac OSX | |
Anton 9-Apr-2009 [13077] | You should be able to find a fixed-width font on Mac somewhere and specify that using font/name: "your-fixed-font" |
shadwolf 9-Apr-2009 [13078] | the actual situation is a pain R2 doesn't evolve and R3 is not stable and evolve so much that it's hard to base any serious developement on it yet .Where is the point if you have to restart your project from scratch every weeks because all changed |
Pekr 9-Apr-2009 [13079x2] | Shadwolf - I am not blaming anyone. Font ugliness has something in common with font hinting. Cyphre told me, that such code in AGG is licensed (or patented?), and that we will have to find some other way around. But you would have to ask Cyphre, I don't remember exactly what was the reason ... |
as for rich-text - you don't have to use VID at all, just gobs. Besides that, VID 3.4 (Carl's VID, Gab's was VID 3.3) is the official one, and although we expect some further additions/changes, basic principles are in there and they will not imo change much ... | |
shadwolf 9-Apr-2009 [13081x2] | PEkr hum gtk+ lol |
no i'm kidding around ... | |
Pekr 9-Apr-2009 [13083] | Don't understand gtk+ joke .... (probably because I know little about gtk itself :-) |
shadwolf 9-Apr-2009 [13084x2] | but having a VID 3.4 means we got a VID 3.0 a VID 3.2 a VID 3.3 and those free where abandonned how can i be sure in the 6 month to come carl won't change again his mind |
and since text editing is related to UTF-8 better to get all the things ended to not have to constantly have to redo part of the job | |
Pekr 9-Apr-2009 [13086] | all previous VID's were Gabriele's implementations of Carl's/Cyphre's/Gabriele's discussions/specs. But for some reason Carl was not satisfied and decided to go with other design. And as it is Carl himself we are talking here, I would bet that the design will stay :-) |
shadwolf 9-Apr-2009 [13087] | Pekr > you said we need to find a better way to handle fonts in AGG cause part of it was pattented (or OSE related) and i sugested GTK+ with is os independent and GPL 2.0 (pango is a heavy but really complete way to handly richt text rendering ) |
Pekr 9-Apr-2009 [13088] | btw - once we have plug-ins/dll back (integration methods being stronger hopefully), I wonder if anything prevents us from not using View at all, and linking Core to stuff like SDL, Qt? |
shadwolf 9-Apr-2009 [13089] | but gtk+ is 10 time the size of a rebol VM ... |
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