- Pharo-users - lists.pharo.org

Re: [Pharo-users] Reading a text file line by line

by Stephane Ducasse

Sven I do not see the binary stream. Is it ZnCharacterReadStream? Stef On Mon, Oct 2, 2017 at 1:22 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Hi, > >> On 2 Oct 2017, at 13:07, Dirk Olmes <dirk(a)xanthippe.ping.de> wrote: >> >> Hi, >> >> I'm trying to get started with Pharo doing something really simple - at >> least that's what I thought ... I'm trying to read a text file line by line. >> >> If I use File named: '/tmp/linex.txt' readStream nextLine I'll get a >> debugger telling me that BinaryFileStream does not understand nextLine. >> >> Now I've tried my best to find a stream that may be reading plain text >> lines but to no avail ... >> >> Help! >> >> -dirk > > $ cat > /tmp/lines.txt > one > two > three > > (FileLocator temp / 'lines.txt') contents lines. > > '/tmp/lines.txt' asFileReference contents lines. > > '/tmp/lines.txt' asFileReference readStreamDo: [ :in | > Array streamContents: [ :out | > [ in atEnd ] whileFalse: [ out nextPut: in nextLine ] ] ]. > > (File named: '/tmp/lines.txt') readStreamDo: [ :in | > | characterStream | > characterStream := ZnCharacterReadStream on: in. > Array streamContents: [ :out | > [ characterStream atEnd ] whileFalse: [ out nextPut: characterStream nextLine ] ] ]. > > They all return #('one' 'two' 'three'). > > In the last, more complex example, you first get a binary stream (and a 'line' is a character based concept), so wrapping the binary stream in a character read stream (which does know about lines) solves the problem. > > HTH, > > Sven

Oct. 2, 2017

Re: [Pharo-users] Organisation and workflows

by Stephane Ducasse

I discussed with esteban sooner this summer and we really want to have a process where people can deploy applications and not just code. Now we are not yet there. Stef On Sun, Oct 1, 2017 at 9:03 PM, Steven R. Baker <steven(a)stevenrbaker.com> wrote: > Heya folks, > > [Please jump on any of my statements that sound crazy: use of Spec, > other assumptions, etc.] > > I'm starting an application in Pharo, using Spec. Basically, a GTD > application in the spirit of nirvanahq, omnifocus, things, nozbe. The > code is working just fine, but I'm left with a lot of questions about > how to organize it. > > First, is there some trick to managing images? Are people using > one-per-project, or one-per-computer? All of the above? Anyone using > PharoLauncher these days? Other tools? > > I'm assuming that the current state of the art is Iceberg; where can I > find a "This is how you should organize your project using Iceberg" > document, blog, book, tutorial, video, or otherwise. > > Once the application is done, I assume I'll want to ship it in a minimal > Pharo image. Is there documentation or prior art on this? > > Finally, is there a way to run and capture keybindings globally? I have > one part of my application (a quick-entry window) which I want summoned > from a global (OS-wide) hotkey. Has this been done before? Or is it not > easy to break the fourth wall, so to speak, and register a global > keybinding from inside the VM? > > Thanks! > > -Steven > > >

Oct. 2, 2017

Re: [Pharo-users] Equals and HashCode Builder

by Stephane Ducasse

Publish it in a package and let us have a look. On Mon, Oct 2, 2017 at 9:53 AM, Jose San Leandro <jose.sanleandro(a)osoco.es> wrote: > Hi, > > I wrote a generator for that. Probably it makes no sense to publish it as > a standalone project. I tend to think code generation fits better in other > languages. > I can paste the relevant code here if needed. > > 2017-10-02 9:44 GMT+02:00 Esteban Lorenzano <estebanlm(a)gmail.com>: > >> in java, because this is a pain to do it each time. >> for us, maybe for the sameâ¦ even if is a lot easier. >> >> Esteban >> >> >> On 2 Oct 2017, at 09:42, Stephane Ducasse <stepharo.self(a)gmail.com> >> wrote: >> >> Not that I know. >> Because it can be a little project. >> Now what is the key point to encapsulate this computation? >> >> On Mon, Oct 2, 2017 at 12:51 AM, Vitor Medina Cruz <vitormcruz(a)gmail.com> >> wrote: >> >>> Hello! >>> >>> Is there, in Pharo, builders for equals (=) and hash messages similar >>> to: https://commons.apache.org/proper/commons-lang/javadocs/api- >>> release/org/apache/commons/lang3/builder/EqualsBuilder.html >>> >>> and >>> >>> https://commons.apache.org/proper/commons-lang/javadocs/api- >>> release/org/apache/commons/lang3/builder/HashCodeBuilder.html? >>> >>> Thanks in advance, >>> Vitor >>> >>> >>> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Livre >>> de vÃrus. www.avg.com >>> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…>. >>> >>> >> >> >> >

Oct. 2, 2017

Re: [Pharo-users] How to make pharo find sqlite?

by Herby VojÄÃk

phil(a)highoctane.be wrote: > Yes, all of this should work and we need to improve on this. > > I am willing to do something about that because it frustrates me too. > > Herby, > > How would you see it working? Hard to answer. But linux knows where its libs are, at least when you do `/sbin/ldconfig -p` in CLI. Pharo should probably use this info somehow, question is, is there a kernel API to get to this, or is there another sane way to get to it? Of course, accepting 'libfoo' when asking for 'foo', but that probably is there already (I hope). And of course, honouring LD_LIBRARY_PATH, as it _is_ set in the pharo start script, so maybe even used, but... I am sorry I don't know how shared lib resolving works on linux. I am just the "as far as I can tell, the whole point of shared libraries is to ask OS for them and get them handed over" kind of person here. Ppl love Smalltalk so much, they forgive lots of rough edges - I think we should not be that forgiving (like, garbled utf-8 names read from git in iceberg-metacello integration; and there are lots of details like this, the issue in this thread being one of more serious ones of them. IMO). Herby > Phil > > On Mon, Oct 2, 2017 at 1:45 PM, Herby VojÄÃk <herby(a)mailbox.sk > <mailto:herby@mailbox.sk>> wrote: > > Renaud de Villemeur wrote: > > Hi > > > [...snip...] > > The reason it pass under windows is because the method library > return by > default sqlite3, which is the dll name you put under pharo VM > directory > to get it work. > > > Not true. It is not in pharo vm directory. It finds it on %PATH%. > > On linux, unless you link your library in the VM folder, the > image has > no clue where to find sqlite3. > > > And this should be fixed, IMNSHO. It probably _partly_ works, but it > should be made to work better. > > Herby > > Hope this helps. > Renaud > > > > . > > > .

Oct. 2, 2017

Re: [Pharo-users] How to make pharo find sqlite?

by phil＠highoctane.be

Yes, all of this should work and we need to improve on this. I am willing to do something about that because it frustrates me too. Herby, How would you see it working? Phil On Mon, Oct 2, 2017 at 1:45 PM, Herby VojÄÃk <herby(a)mailbox.sk> wrote: > Renaud de Villemeur wrote: > >> Hi >> > > [...snip...] > > The reason it pass under windows is because the method library return by >> default sqlite3, which is the dll name you put under pharo VM directory >> to get it work. >> > > Not true. It is not in pharo vm directory. It finds it on %PATH%. > > On linux, unless you link your library in the VM folder, the image has >> no clue where to find sqlite3. >> > > And this should be fixed, IMNSHO. It probably _partly_ works, but it > should be made to work better. > > Herby > > Hope this helps. >> Renaud >> > > > . > > >

Oct. 2, 2017

Re: [Pharo-users] How to make pharo find sqlite?

by Herby VojÄÃk

Renaud de Villemeur wrote: > Hi [...snip...] > The reason it pass under windows is because the method library return by > default sqlite3, which is the dll name you put under pharo VM directory > to get it work. Not true. It is not in pharo vm directory. It finds it on %PATH%. > On linux, unless you link your library in the VM folder, the image has > no clue where to find sqlite3. And this should be fixed, IMNSHO. It probably _partly_ works, but it should be made to work better. Herby > Hope this helps. > Renaud .

Oct. 2, 2017

Re: [Pharo-users] Reading a text file line by line

by Sven Van Caekenberghe

Hi, > On 2 Oct 2017, at 13:07, Dirk Olmes <dirk(a)xanthippe.ping.de> wrote: > > Hi, > > I'm trying to get started with Pharo doing something really simple - at > least that's what I thought ... I'm trying to read a text file line by line. > > If I use File named: '/tmp/linex.txt' readStream nextLine I'll get a > debugger telling me that BinaryFileStream does not understand nextLine. > > Now I've tried my best to find a stream that may be reading plain text > lines but to no avail ... > > Help! > > -dirk $ cat > /tmp/lines.txt one two three (FileLocator temp / 'lines.txt') contents lines. '/tmp/lines.txt' asFileReference contents lines. '/tmp/lines.txt' asFileReference readStreamDo: [ :in | Array streamContents: [ :out | [ in atEnd ] whileFalse: [ out nextPut: in nextLine ] ] ]. (File named: '/tmp/lines.txt') readStreamDo: [ :in | | characterStream | characterStream := ZnCharacterReadStream on: in. Array streamContents: [ :out | [ characterStream atEnd ] whileFalse: [ out nextPut: characterStream nextLine ] ] ]. They all return #('one' 'two' 'three'). In the last, more complex example, you first get a binary stream (and a 'line' is a character based concept), so wrapping the binary stream in a character read stream (which does know about lines) solves the problem. HTH, Sven

Oct. 2, 2017

Reading a text file line by line

by Dirk Olmes

Hi, I'm trying to get started with Pharo doing something really simple - at least that's what I thought ... I'm trying to read a text file line by line. If I use File named: '/tmp/linex.txt' readStream nextLine I'll get a debugger telling me that BinaryFileStream does not understand nextLine. Now I've tried my best to find a stream that may be reading plain text lines but to no avail ... Help! -dirk

Oct. 2, 2017

Re: [Pharo-users] Organisation and workflows

by Dimitris Chloupis

On Sun, Oct 1, 2017 at 10:04 PM Steven R. Baker <steven(a)stevenrbaker.com> wrote: > Heya folks, > > [Please jump on any of my statements that sound crazy: use of Spec, > other assumptions, etc.] > > I'm starting an application in Pharo, using Spec. Basically, a GTD > application in the spirit of nirvanahq, omnifocus, things, nozbe. The > code is working just fine, but I'm left with a lot of questions about > how to organize it. > > First, is there some trick to managing images? Are people using > one-per-project, or one-per-computer? All of the above? Anyone using > PharoLauncher these days? Other tools? > Personally I rely on the image as least as possible. Even for live state which is what the image excels you can use several micro formats like fuel , ston or other files of your own definition. Code wise I am relying on git. To build a new image I use a makefile, together with pharo startup script. https://github.com/kilon/makePharo The make file does the downloading of the vm and the image to the lastest version and also the deletion of a previous installation The startup script (regular smalltalk source file) it triggers only when the image is opened the first time and it dowloads my project. The project is available also via Package Browser, it acts as an umbrella that dowload all my projects and their dependencies using metacello and git. I only save images ONLY in case I wanto to store the live state which means almost never. Code is handlied only through git and github. I use an external git client called Gitup (Mac only). I dont use Pharolauncher or Iceberg. I was planning once to replace makefile with my own gui for getting and installing latest vm and image but I never tried it because I was happy with the makefile. > I'm assuming that the current state of the art is Iceberg; where can I > find a "This is how you should organize your project using Iceberg" > document, blog, book, tutorial, video, or otherwise. > > Once the application is done, I assume I'll want to ship it in a minimal > Pharo image. Is there documentation or prior art on this? > There is project bootstrap that has such a goal its still a WIP. > Finally, is there a way to run and capture keybindings globally? I have > one part of my application (a quick-entry window) which I want summoned > from a global (OS-wide) hotkey. Has this been done before? Or is it not > easy to break the fourth wall, so to speak, and register a global > keybinding from inside the VM? > Last time I checked it was not possible to have global shortcuts the easy way. But yes you could do it. I am not aware of a GUI tool that will do this for you , you will have to do this using code. Hacking the VM sounds too extreme for me, you dont need to, you could run a forked process inside Pharo and use UFFI to detect key presses without touching the VM. Of course this si necessary only if Pharo still does not have an API for global shortcuts. UFFI can do some pretty insane stuff, but be warned that most of them are platform specific which is both a blessing and a curse. UFFI basically gives access to C libraries which means the OS libraries as well so you can manipulate anything. You even make it capture shortcuts outside Pharo, for example when your application is meant to be run on the background, with minimised or no pharo window. Thanks! > > -Steven > > > >

Oct. 2, 2017

Re: [Pharo-users] Organisation and workflows

by stephan

On 01-10-17 21:03, Steven R. Baker wrote: > First, is there some trick to managing images? Are people using > one-per-project, or one-per-computer? All of the above? Anyone using > PharoLauncher these days? Other tools? PharoLauncher indeed. I name images after project and download date/build. I regularly move projects to a new image version. For issue fixing I nearly always download a new image and recreate the situation in that. > Once the application is done, I assume I'll want to ship it in a minimal > Pharo image. Is there documentation or prior art on this? That is right, and you'd be early in doing that :) Basically just look at how the full Pharo image is built from the minimal image. Stephan

Oct. 2, 2017