[Pharo-users] désabonnement
--- Begin Message --- --- End Message ---
Re: [Pharo-users] how to use indexes to copy a substring out of a string
On Sun, 30 Dec 2018 at 00:29, Roelof Wobben wrote:
> Hello,
>
> Still working on AdventOfCode
>
> I'm struggling to see how this can be solved.
>
> Now, a nice string is one with all of the following properties:
>
>- It contains a pair of any two letters that appears at least twice in
>the string without overlapping, like xyxy (xy) or aabcdefgaa (aa), but
>not like aaa (aa, but it overlaps).
>
> To exclude overlaps, one approach could be to subtract each candidate pair
from the string
and then check the remainder-string for matches.
I'm not sure, but suspect that as the candidate pair progresses through the
string, only the
trailing remainder-string needs matching since the preceding
remainder-string has already been checked.
So a Pharo 7 Spotter search for 'pairs' finds 28 implementors
where SequenceableCollection>>overlappingPairsCollect:
looks quite close to what is required...
'abcdefg' asArray overlappingPairsCollect: [ :a :b | { a.b } ]. "#(
#($a $b)
#($b $c)
#($c $d)
#($d $e)
#($e $f)
#($f $g))"
Reviewing its implementation...
SequenceableCollection>>overlappingPairsCollect: aBlock
| retval |
retval := self species ofSize: self size - 1.
1 to: self size - 1
do: [:i | retval at: i put: (aBlock value: (self at: i) value: (self at: i
+ 1)) ].
^retval
it can be adapted to provide also a remainder...
SequenceableCollection>>overlappingPairsRemainderCollect: aBlock
| retval |
retval := self species ofSize: self size - 1.
1 to: self size - 1
do: [:i | retval at: i put: (aBlock value: (self at: i) value: (self at: i
+ 1) value: (self allButFirst: i + 1)) ].
^retval
for use like this...
'abcdefg' asArray overlappingPairsRemainderCollect: [ :a :b :rem | {
a.b.rem } ] "#(
#($a $b #($c $d $e $f $g))
#($b $c #($d $e $f $g))
#($c $d #($e $f $g))
#($d $e #($f $g))
#($e $f #($g))
#($f $g #()))"
>- It contains at least one letter which repeats with exactly one
>letter between them, like xyx, abcdefeghi (efe), or even aaa.
>
> You might adapt "overlappingPairsCollect: aBlock"
into "overlappingPairsSkip: n collect: aBlock"
but changing "size -1" and "i + 1"
into "size - n" and "i + n"
HTH
cheers -ben
P.S. If #overlappingPairsSkip:collect: seemed generically useful to push
into Pharo,
then the following would be redefined to reuse it...
SequenceableCollection>>overlappingPairsCollect: aBlock
^self overlappingPairsSkip: 1 collect: aBlock
The extra layer of function call doesn't add much overhead.
On the other hand #overlappingPairsRemainderCollect:
does lots of extra copying through #allButFirst:
so would not be so good for reuse by #overlappingPairsCollect:
Re: [Pharo-users] [Moose-dev] glamorous toolkit: v0.4.0
Hi, Thanks for the link. For some strange reason, I do not see the linked email in my inbox. I am happy to hear that you could install GT. > * The new interfaces and some demo of the graphical elements look > pretty good > * After just some operations including window resizing I just get the > Red Window of Death [1](https://i.imgur.com/Cbx7uyH.png). Indeed, that is a known problem: https://github.com/feenkcom/gtoolkit/issues/64 > * I like the little triangles to expand thing in the document and the > run buttons for embedded code, and the "embeddability" of elements > in the document in a tree like fashion, which of course could lead > to documents that embed pieces of documents, which embed pieces of > documents… But the dual panel view of code in one side with > results in the right panel of old GT didn't tend to create such > "recursion". This dual modal view is the same of > Atom[2](https://is.gd/kegaso) and CodiMD[3](https://is.gd/wudugi) > for interactive documentation and I would like to see examples more > in that line... but I don't know how it suits the philosophy behind > Documenter, which seems more aligned to a modal non dual view of the > document where you enter into edit mode once you click a piece of > the document and into a view mode once you are out of it (instead of > the proposed dual view). Would be nice to see is such dual view can > be used to directly operate on the rendered view and see changes in > the markup (i.e resizing an image in the rendered view changes the > value on the edit view). Interesting observation. The linked tools as all other notebook technologies I saw rely on two distinct modes for edit and view that reside in two distinct widgets (editor and viewer). They do that because they simply cannot have it in one. Because of the design of Bloc we are not constrained to that. Instead, we build a seamless interface that is both optimized for viewing, and for editing with live preview that does not rely on an explicit render button. This approach enables direct manipulation without friction, and we think this is a significant advancement in this space. About the remark related "to documents that embed pieces of documents, which embed pieces of documents”: It is indeed possible to embed documents in documents, but I am not sure I understand where you see the issue appearing. Could you detail this part? > * I like the different view that a document can have, markup wise: > Pillar, Markdown, LaTeX, HTML, DeckJS AsciiDoc as is demoed in the > authoring part [4](https://i.imgur.com/Jc1T5Rm.png). Interestingly, those extensions exist in the old Inspector as well. > * Its difficult to travel between the panels of a playground. > Previously you just make click in the lower circle representing the > panel you want to go at it was done > [5](https://i.imgur.com/4CDAM2o.png), but now clicking on the upper > rectangle representing such panel has no effect > [6](https://i.imgur.com/8Obo3Ct.png). For now, you have to rely on horizontal scrolling using a trackpad or mouse. Alternatively, Shift+scroll should also work. The upper part is not yet ready. > * Auto-completion and shortcuts for selecting text doesn't work well > on code cells of the new playground. Selecting whole words with Ctrl > arrow doesn't work, neither using down arrows to choose from > suggestions and even you can end with previous suggestions floating > around your playground [7](https://i.imgur.com/4awyIft.png) > [8](https://i.imgur.com/7qXc64b.png). Indeed. These are known issues that we will tackle soon. > * The default data science example didn't work at all > [8](https://i.imgur.com/YhNb8el.png) Nice catch. Thanks. The path of the file is incorrect when the image is copied. >> Now, a clarification. The old GT was produced over a period of 4 years >> by an open-source team. The project had its own identity, and in 2014 >> the core of it was first integrated in Pharo. I say the core of it, >> because the visual part and other libraries are not in Pharo today. >> >> The full potential is found in Moose. In any case, during this >> process, GT got to be identified with Pharo and that was a good thing. >> The new GT is a product produced by feenk, a company. Much of the >> original team is still active in the new version, but now we commit to >> our product in a different way. The product is free and open-source, >> but it’s still a product with an identity and a goal. At present time, >> both the team, identity and goal are different than those of Pharo. >> >> Our goal is to offer a fundamentally new alternative to program >> (including comparing to what is possible now in Pharo). We are not >> looking for marginal improvements, and we are not aiming at backward >> compatibility. > I used Moose to build the first Grafoscopio
Re: [Pharo-users] how to use indexes to copy a substring out of a string
Op 29-12-2018 om 21:05 schreef Hernán Morales Durand via Pharo-users: Thanks, I will look at these but I think there are too advanced for Aoc challenges but maybe I see a way to solve it more easily
Re: [Pharo-users] how to use indexes to copy a substring out of a string
--- Begin Message --- Hi Roelof You may have a look at my StringExtensions package at https://github.com/hernanmd/StringExtensions I wrote several algorithms for working with substrings like: https://github.com/hernanmd/StringExtensions/blob/master/repository/StringExtensions.package/String.extension/instance/indexesOfMotif..st https://github.com/hernanmd/StringExtensions/blob/master/repository/StringExtensions.package/String.extension/instance/indicesOfSubstringOverlaps..st Some of them used in https://github.com/hernanmd/BioSmalltalk where you can find also algorithms for k-mer counting and clump finding: https://github.com/hernanmd/BioSmalltalk/blob/master/repository/BioTools.package/BioSequence.class/instance/clumpFindK.length.times..st https://github.com/hernanmd/BioSmalltalk/blob/master/repository/BioTools.package/BioSequence.class/instance/kmersCount.mismatches..st for the Bio repo just consider a Sequence like a more advanced String. Cheers, Hernán El sáb., 29 dic. 2018 a las 13:29, Roelof Wobben () escribió: > > Hello, > > Still working on AdventOfCode > > Im struggeling to see how this can be solved. > > Now, a nice string is one with all of the following properties: > > It contains a pair of any two letters that appears at least twice in the > string without overlapping, like xyxy (xy) or aabcdefgaa (aa), but not like > aaa (aa, but it overlaps). > It contains at least one letter which repeats with exactly one letter between > them, like xyx, abcdefeghi (efe), or even aaa. > > my game plan was this > > 1) group the characters and filter everything out which has a count not equal > to two > > 2) find the indexes of the characters and with the indexes use a copy method > so I have a substring out of it > > 3) do the same with the substring so again 1 and 2 > > but how can I make 2 work. > > Roelof > > --- End Message ---
Re: [Pharo-users] Subscribing to streaming input with ZnClient
Very nice, and thank you for the feedback. > On 28 Dec 2018, at 23:16, Jimmie Houchin wrote: > > On 12/27/18 9:00 AM, Sven Van Caekenberghe wrote: >> Hi Jimmie, >> >>> On 27 Dec 2018, at 15:15, Jimmie Houchin wrote: >>> >>> Hello, >>> >>> I am wanting to subscribe to a perpetual stream of JSON data in my app. I >>> have failed to find an example which helps me understand how to do >>> so. It may be there but I have not discovered it. >>> >>> How do I do something like that? A curl example from the website. >>> >>> curl \ >>> -H "Authorization: abcdefg?" \ >>> "https://stream-mystreamingsite.com/stream?query=whatIwant; >>> Response Headers >>> HTTP/1.1 200 OK >>> Access-Control-Allow-Headers: Authorization, Content-Type, >>> Accept-Datetime-Format >>> Access-Control-Allow-Methods: PUT, PATCH, POST, GET, OPTIONS, DELETE >>> Access-Control-Allow-Origin: * >>> Content-Type: application/octet-stream >>> >>> >>> After subscribing to the stream I will need to get and access the JSON data >>> so that my app can process it. >>> >>> Any help and wisdom greatly appreciated. >>> >>> Thanks. >>> >>> Jimmie >> The client and server part of the WebSockets extension to Zinc HTTP >> Components already supports similar functionality, so this is certainly >> doable. >> >> Unless you can give me a public end point to test, I can only write some >> untested pseudo code. >> >> | client reader | >> client := ZnClient new. >> client url: 'https://stream-mystreamingsite.com/stream?query=whatIwant'. >> client streaming: true. >> client headerAt: 'Authorization' put: 'xxx'. >> client get. >> reader := NeoJSONReader on: (ZnCharacterReadStream on: client contents). >> [ reader atEnd] whileFalse: [ reader next ]. >> reader close. >> client close. >> >> Be sure to tell us how you got it working. >> >> HTH, >> >> Sven > > Hello Sven, > > Thanks for your help. > > The server I am connecting to requires an account to access. But you provided > sufficient information to get me going. Thanks. > > This is for a Trading Application. I am a ways off before ready for > releasing. I will open source when it is usable and cleaned up enough from > personal code. > > Currently I have named it SmallTrader, hence the ST prefix for classes. > > I have an STClient class which subclasses ZnClient and sets it up with the > necessary account authorization. > > Below is the STPriceStream#mainLoop method. > > Basically it is populating some OrderedCollections in the STPriceStream which > are available to the app's mainLoop. > > It is working perfectly. I currently have it printing out data to stdout so > that I can watch the data it collects to visually understand what is > happening. > > The connection below is the instance of the class which connects to this > specific broker. Since connections are specific to a broker I am putting all > of the parsing into ST objects such as STPrice and STCandle in the broker > specific class as it understands what the broker returns. This will allow my > app to be able to use different brokers simply by changing which connection > class we call. Currently I am writing for one specific one where my account > is located. But I want to be able to add brokers in time. > > Thanks again for your help. > > mainLoop > | delay pricesStream reader | > delay := (Duration milliSeconds: 100) asDelay. > minuteDateTime := STCandle datetimeMinute: (DateAndTime now asUTC). > pricesStream := connection newPriceStreamConnectionForInstruments: > instruments. > pricesStream get. > reader := STONReader on: (ZnCharacterReadStream on: pricesStream > contents). > [ reader atEnd] whileFalse: [ > stop > ifFalse: [ | price | > price := connection pricesStreamNextPrice: (reader next). > price ifNotNil: [ > prices add: price. > price datetimeMinute = minuteDateTime > ifTrue: [ minutePrices add: price ] > ifFalse: [ self processMinutePrices: price ]]] > ifTrue: [ > reader close > ^ self ]. > delay wait ]. > > > Jimmie
Re: [Pharo-users] [Moose-dev] Re: glamorous toolkit: v0.4.0
On 23/12/18 3:21, Gour wrote: > On Sat, 22 Dec 2018 12:53:16 -0500 > Offray Vladimir Luna Cárdenas > wrote: > >> I don't know yet, but I would like to use Tonel and some import/export >> tools to use Fossil as my backend for file based storage instead of >> Git. > I can fully understand you - using Fossil is so easy and safe in comparison > with Git where one never knows... Yes. I think that DVCS wise, developers imagination has been monopolized by Git/GitHub. There are powerful simple little tools out there that are practically outside of the developers' radar. Let's see what happens in the Fossil + Pharo integration front. >> These days are particularly slow in Colombia, but I will post advances >> as soon as I have something. > Thank you. > > Btw, I looked at Grafoscopio and it is interesting you had been looking > or using tools like Leo editor, Pollen - I also considered Skribilo > (Guile) - since I am also searching some toolchain to improve web > publishing (paper output is not problem with LateX or ConTeXt) , but > still haven't decided what to use/learn since learning Racket/Pharo > requires some extra time until it can pay off (I want to stay focused > on my writing and studying and not turn myself into programmer)...for > now I'm still using Emacs/markdown-mode although in the past I spent > time with both Aѕciidoc(tor) and rst markups. I looked also at Skribilo in my search for more powerful tools for interactive writing and documentation, and Emacs/OrgMode (see [1]). I really liked the Racket approach of a meta programming tool for making Domain Specific Languages (like the ones used for documentation). But in the development front I think that Pharo/Smalltalk is hardly beaten by anything, more if you're thinking not only in publishing (web, mobile or print) but also in agile data visualization (see [2]). In that regard becoming a coder was a valuable deviation from my research and study that paid huge reward later in those fronts also. [1] https://duckduckgo.com/?q=devops+org+mode=v76-7=videos=videos=videos=dljNabciEGg [2] https://vimeo.com/94724841 Is good to see more interest in interactive documentation in this community. It seems that good times are coming. Cheers, Offray
[Pharo-users] how to use indexes to copy a substring out of a string
Hello, Still working on AdventOfCode Im struggeling to see how this can be solved. Now, a nice string is one with all of the following properties: It contains a pair of any two letters that appears at least twice in the string without overlapping, like xyxy (xy) or aabcdefgaa (aa), but not like aaa (aa, but it overlaps). It contains at least one letter which repeats with exactly one letter between them, like xyx, abcdefeghi (efe), or even aaa. my game plan was this 1) group the characters and filter everything out which has a count not equal to two 2) find the indexes of the characters and with the indexes use a copy method so I have a substring out of it 3) do the same with the substring so again 1 and 2 but how can I make 2 work. Roelof
[Pharo-users] Magritte seaside save
Hello,
So:
>
> MyObject new asComponent addValidatedForm
>
How do I define save callBack?
I tried:
MyObject new asComponent addValidatedForm : {#save -> 'save'. #cancel ->
> 'cancel'}.
>
and defined save in both instance or class side of MyObject, but that
didn't work.
Regards,
Vitor.
Livre
de vírus. www.avg.com
.
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
Re: [Pharo-users] [Moose-dev] glamorous toolkit: v0.4.0
Hi Doru, This one is still pending: https://www.list.inf.unibe.ch/pipermail/moose-dev/2018-December/027542.html Of course we have slow days at end of year and I don't expect immediate answer, but now that discussion was active is good to point some pending conversation, even to be taken after holidays. Cheers, Offray On 29/12/18 6:38, Tudor Girba wrote: > Hi Offray, > > I believe I replied to all your emails. If I missed one, please point me to > it. > > Cheers, > Doru > > >> On Dec 28, 2018, at 5:12 PM, Offray Vladimir Luna Cárdenas >> wrote: >> >> >> On 28/12/18 8:03, Tudor Girba wrote: On Dec 28, 2018, at 1:08 PM, Kjell Godo wrote: WOW >>> :) >>> >>> What part of it do you like? >>> >>> Cheers, >>> Doru >> And which parts you don't? >> >> I wrote a long mail regarding good and no so good parts of the new GT >> experience, including features possible forks, that I hope will be >> answered also in detail, to keep the big picture. >> >> Cheers, >> >> Offray >> >> >> > -- > www.feenk.com > > "You can inspect and adapt only what is explicit." > >
Re: [Pharo-users] [Moose-dev] glamorous toolkit: v0.4.0
Hi Offray, I believe I replied to all your emails. If I missed one, please point me to it. Cheers, Doru > On Dec 28, 2018, at 5:12 PM, Offray Vladimir Luna Cárdenas > wrote: > > > On 28/12/18 8:03, Tudor Girba wrote: >>> On Dec 28, 2018, at 1:08 PM, Kjell Godo wrote: >>> >>> WOW >> :) >> >> What part of it do you like? >> >> Cheers, >> Doru > > And which parts you don't? > > I wrote a long mail regarding good and no so good parts of the new GT > experience, including features possible forks, that I hope will be > answered also in detail, to keep the big picture. > > Cheers, > > Offray > > > -- www.feenk.com "You can inspect and adapt only what is explicit."
