- Pharo-users - lists.pharo.org

Re: [Pharo-users] Pharo 6 snap package

by H. Hirzel

Hello Are there plans to do a Pharo 6.1 snap package in the upcoming months? (Ubuntu 18.04.1) --Hannes On 6/13/17, phil(a)highoctane.be <phil(a)highoctane.be> wrote: > On Tue, Jun 13, 2017 at 11:34 AM, Alistair Grant <akgrant0710(a)gmail.com> > wrote: > >> On Tue, Jun 13, 2017 at 11:25:15AM +0200, phil(a)highoctane.be wrote: >> > I need to upgrade to 16.04 now :-) >> >> :-) >> >> Don't forget you can install snapd on Ubuntu 14.04: >> >> https://snapcraft.io/docs/core/install-ubuntu >> >> > Ah, wasn't aware of that. Thx Alistair! > > Phil > > >> Cheers, >> Alistair >> >> >> > Phil >> > >> > On Tue, Jun 13, 2017 at 11:04 AM, Stephane Ducasse < >> stepharo.self(a)gmail.com> >> > wrote: >> > >> > THANKS A LOT ALISTAIR. >> > I mean it :) >> > >> > On Tue, Jun 13, 2017 at 10:58 AM, Alistair Grant < >> akgrant0710(a)gmail.com> >> > wrote: >> > > Hi Everyone, >> > > >> > > I've updated the Pharo 6 snap package for Ubuntu. >> > > >> > > The major advantages of using the snap package are: >> > > >> > > - No need to install all the 32 bit dependencies on a 64 bit >> system, >> > > they're all contained and isolated within the snap package. >> > > - Automagically distinguish between 32 bit and 64 bit images and >> run the >> > > appropriate VM (as with the ZeroConf package, the 64 bit VM >> > still >> > > needs more testing). >> > > >> > > >> > > >> > > To get Pharo up and running on Ubuntu 16.04 or later: >> > > >> > > # Install Pharo >> > > $ sudo snap install --candidate pharo --classic >> > > # If your system isn't configured for threaded heartbeat: >> > > $ sudo pharo.config >> > > # Download the latest Pharo 6 image >> > > $ pharo.getimage >> > > # Go... >> > > $ pharo.ui Pharo.image >> > > # or: >> > > $ pharo Pharo.image eval 4+3 >> > > >> > > To get a list of available commands: >> > > >> > > $ snap info pharo >> > > >> > > >> > > If you're on Debian or Ubuntu 14.04 you'll need to install snapd, >> see >> > > https://snapcraft.io/docs/core/install >> > > >> > > >> > > The VM is the threaded heartbeat, dated 201705310241. >> > > >> > > The installation flags are: >> > > >> > > --candidate - The edge and beta channels are for development >> versions. >> > > It progresses to candidate and then stable. >> > > --classic - Snap packages are normally sandboxed for security >> > > reasons. Since Pharo is a development environment >> > > in which we want to be able to run any executable, >> > > or load any library, it is installed with access to >> > > the entire system (as the running user). >> > > >> > > Why use snap packages? >> > > >> > > - They include all dependencies. In particular, for the 32 bit >> > > versions, this means that it isn't necessary to install all the >> 32 bit >> > > architecture and associated dependencies. >> > > - Including dependencies means that there shouldn't be any >> problems with >> > > incompatible library versions when upgrading. >> > > >> > > Why not use snap packages? >> > > >> > > - It's a relatively new technology, with a number of rough edges. >> > > - There may still be issues with its sandboxing that I haven't >> > > discovered yet. >> > > - Because the package uses classic confinement, it isn't >> > > cross-distribution in practice (unfortunately). >> > > >> > > Please let me know of any other advantages or disadvantages you >> think >> > > should be listed here. >> > > >> > > If you don't trust me to configure your system correctly (which >> requires >> > > sudo): >> > > >> > > - All the scripts that make up the sub-commands are visible, e.g. >> > > pharo.config can be viewed at /snap/pharo/current/usr/bin/CONFIG >> > > >> > > >> > > The packaging code is at: https://github.com/akgrant43/pharo-snap >> > > >> > > >> > > Cheers, >> > > Alistair >> >> >> >

Aug. 22, 2018

Re: [Pharo-users] Making TDD in pharo work properly (aka - walkback on a missing class is nasty)

by Tim Mackinnon

Hi - but I guess my question is (and excuse my basic knowledge in this area) - when a class isnât found - can we do better than return nil so that the debugger can give a better msg and presumably the code Iâve written could live on that undefined object? Or am thinking about this wrong? I will also put together a pr for this in Pharo 7 if you think itâs a decent fix. Tim Sent from my iPhone Sent from my iPhone > On 22 Aug 2018, at 09:51, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > Hi, > > I played with it, nice! > > I guess the case when you really get a DNU on nil (and want to create method there) does not really happenâ¦ extending nil is for special cases. > > Marcus > > >> On 22 Aug 2018, at 13:39, Tim Mackinnon <tim(a)testit.works> wrote: >> >> Sorry Marcus - you needed to follow the exercism instructions and right click on the exercism package to get an exercism menu to fetch a new exercise (e.g. hello-world). The is then using the TonalReader to pull in code - and then you get a test class that can reference a class that isnât there yet. (But you need to have the exercism cli installed as per the instructions etc). >> >> In retrospect I think it might be simpler to download this 6.1 image that already has done that - https://www.dropbox.com/s/x2ot9f8arbbvlyb/PharoExercism.zip?dl=0 >> It has TwoFerTest that is in that state. If you click on the TestWithName orb, you will see "#new was sent to nilâ - can you can see how my Create button has been fixed per you suggestions to create a class. (The code I wrote is in ExercismTools:DoesNotUnderstandDebugAction>>createMissingClassIn:) >> >> Tim >> >> >>> On 22 Aug 2018, at 04:44, Marcus Denker <marcus.denker(a)inria.fr> wrote: >>> >>> >>> >>>> On 17 Aug 2018, at 14:20, Tim Mackinnon <tim(a)testit.works> wrote: >>>> >>>> The direct link to instructions is here: https://exercism.io/tracks/pharo/installation (not sure if you have to be signed up to see it otherwise its in the repo here: https://github.com/exercism/pharo/blob/master/docs/INSTALLATION.md) >>> >>> Hmâ¦ AllExercismTests seems to not be there (just a green test in Welcome) >>> >>> Is this supposed to contain the code below (the createMissingClassActionFor:in:) ? >>> >>> It would be nice to have an image that shows exactly the problem (I do not have that much time sadly to work on it,but I do have some time to check if I have an image that is set up to the point where i can easily recreate the problem) >>> >>> Marcus >>> >>> >>>> Tim >>>> >>>>> On 17 Aug 2018, at 07:17, Marcus Denker <marcus.denker(a)inria.fr> wrote: >>>>> >>>>> >>>>> >>>>>> On 17 Aug 2018, at 13:00, Tim Mackinnon <tim(a)testit.works> wrote: >>>>>> >>>>>> >>>>>> Hi Marcus - I can put an image somewhere if that helps (do you just need the .image and .changes)? >>>>>> >>>>>> Or you can repro from a fresh 6.1 if you follow the exercism Pharo instructions (https://exercism.io/tracks/pharo) to load the first hello world-world example and run the tests. This has my code changes to make create work with a nil class - but maybe we can do better? >>>>> I will do that and have a look! >>>>> >>>>>> Tim >>>>>> >>>>>> >>>>>> Sent from my iPhone >>>>>> >>>>>>> On 17 Aug 2018, at 06:21, Marcus Denker <marcus.denker(a)inria.fr> wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>>> On 10 Aug 2018, at 23:16, Tim Mackinnon <tim(a)testit.works> wrote: >>>>>>>> >>>>>>>> Actually I think I figured that bit out - a bit clumsily - (pointers appreciated) >>>>>>>> >>>>>>>> createMissingClassActionFor: aMessage in: aContext >>>>>>>> |errorNode senderContext newClass variableNode | >>>>>>>> senderContext := aContext sender. >>>>>>>> errorNode := senderContext method sourceNodeExecutedForPC: senderContext pc. >>>>>>>> variableNode := errorNode receiver receiver. >>>>>>>> >>>>>>>> newClass := OCUndeclaredVariableWarning new node: variableNode; defineClass: variableNode name. >>>>>>>> aContext restart. >>>>>>>> >>>>>>>> However that last line is wrong, as it doesnât restart with my newly defined class - I also tried >>>>>>>> >>>>>>>> aContext restartWithNewReceiver: newClass >>>>>>>> >>>>>>>> But again, I get a debugger where my class is still bound to nil. So whatâs the trick to re-evaluate with the new class Iâve created? Or maybe Iâm totally on the wrong track (still its very interestingâ¦) >>>>>>> >>>>>>> >>>>>>> what is a bit bad is that you catch the problem âtoo lateâ (that is, the DNU to nil, not the read of nil), so nil is already pushed on the stack at this point. >>>>>>> >>>>>>> I tried it in the inspector and at least the class binding was correct after defining the classâ¦ do you have an image with the whole code to try? >>>>>>> >>>>>>> Marcus > >

Aug. 22, 2018

Re: [Pharo-users] [Pharo-dev] Pharo and Docker (some steps)

by Ben Coman

On Mon, 20 Aug 2018 at 21:12, Torsten Bergmann <astares(a)gmx.de> wrote: > > For those interested in Docker: > > I recently played with Pharo and Docker and summarized some of my steps in a small tutorial > in my Pharo wiki: > > http://wiki.astares.com/pharo/613 > > There is also a page following Mike Filonovs suggestions on the Pharo docker file: > > http://wiki.astares.com/pharo/615 > > Maybe this is useful for others too. I see docker mentioned around a lot, but I'm not familiar with it, so its nice to see a concrete example in a domain I'm familiar with. Thanks for posting. cheers -ben

Aug. 22, 2018

Re: [Pharo-users] Making TDD in pharo work properly (aka - walkback on a missing class is nasty)

by Marcus Denker

Hi, I played with it, nice! I guess the case when you really get a DNU on nil (and want to create method there) does not really happenâ¦ extending nil is for special cases. Marcus > On 22 Aug 2018, at 13:39, Tim Mackinnon <tim(a)testit.works> wrote: > > Sorry Marcus - you needed to follow the exercism instructions and right click on the exercism package to get an exercism menu to fetch a new exercise (e.g. hello-world). The is then using the TonalReader to pull in code - and then you get a test class that can reference a class that isnât there yet. (But you need to have the exercism cli installed as per the instructions etc). > > In retrospect I think it might be simpler to download this 6.1 image that already has done that - https://www.dropbox.com/s/x2ot9f8arbbvlyb/PharoExercism.zip?dl=0 > It has TwoFerTest that is in that state. If you click on the TestWithName orb, you will see "#new was sent to nilâ - can you can see how my Create button has been fixed per you suggestions to create a class. (The code I wrote is in ExercismTools:DoesNotUnderstandDebugAction>>createMissingClassIn:) > > Tim > > >> On 22 Aug 2018, at 04:44, Marcus Denker <marcus.denker(a)inria.fr> wrote: >> >> >> >>> On 17 Aug 2018, at 14:20, Tim Mackinnon <tim(a)testit.works> wrote: >>> >>> The direct link to instructions is here: https://exercism.io/tracks/pharo/installation (not sure if you have to be signed up to see it otherwise its in the repo here: https://github.com/exercism/pharo/blob/master/docs/INSTALLATION.md) >>> >> >> Hmâ¦ AllExercismTests seems to not be there (just a green test in Welcome) >> >> Is this supposed to contain the code below (the createMissingClassActionFor:in:) ? >> >> It would be nice to have an image that shows exactly the problem (I do not have that much time sadly to work on it,but I do have some time to check if I have an image that is set up to the point where i can easily recreate the problem) >> >> Marcus >> >> >>> Tim >>> >>>> On 17 Aug 2018, at 07:17, Marcus Denker <marcus.denker(a)inria.fr> wrote: >>>> >>>> >>>> >>>>> On 17 Aug 2018, at 13:00, Tim Mackinnon <tim(a)testit.works> wrote: >>>>> >>>>> >>>>> Hi Marcus - I can put an image somewhere if that helps (do you just need the .image and .changes)? >>>>> >>>>> Or you can repro from a fresh 6.1 if you follow the exercism Pharo instructions (https://exercism.io/tracks/pharo) to load the first hello world-world example and run the tests. This has my code changes to make create work with a nil class - but maybe we can do better? >>>>> >>>> I will do that and have a look! >>>> >>>>> Tim >>>>> >>>>> >>>>> Sent from my iPhone >>>>> >>>>> On 17 Aug 2018, at 06:21, Marcus Denker <marcus.denker(a)inria.fr> wrote: >>>>> >>>>>> >>>>>> >>>>>>> On 10 Aug 2018, at 23:16, Tim Mackinnon <tim(a)testit.works> wrote: >>>>>>> >>>>>>> Actually I think I figured that bit out - a bit clumsily - (pointers appreciated) >>>>>>> >>>>>>> createMissingClassActionFor: aMessage in: aContext >>>>>>> |errorNode senderContext newClass variableNode | >>>>>>> senderContext := aContext sender. >>>>>>> errorNode := senderContext method sourceNodeExecutedForPC: senderContext pc. >>>>>>> variableNode := errorNode receiver receiver. >>>>>>> >>>>>>> newClass := OCUndeclaredVariableWarning new node: variableNode; defineClass: variableNode name. >>>>>>> aContext restart. >>>>>>> >>>>>>> However that last line is wrong, as it doesnât restart with my newly defined class - I also tried >>>>>>> >>>>>>> aContext restartWithNewReceiver: newClass >>>>>>> >>>>>>> But again, I get a debugger where my class is still bound to nil. So whatâs the trick to re-evaluate with the new class Iâve created? Or maybe Iâm totally on the wrong track (still its very interestingâ¦) >>>>>>> >>>>>> >>>>>> >>>>>> what is a bit bad is that you catch the problem âtoo lateâ (that is, the DNU to nil, not the read of nil), so nil is already pushed on the stack at this point. >>>>>> >>>>>> I tried it in the inspector and at least the class binding was correct after defining the classâ¦ do you have an image with the whole code to try? >>>>>> >>>>>> Marcus >>>>>> >>>>>> >>>> >>> >> >> > >

Aug. 22, 2018

Re: [Pharo-users] Jupyter notebooks / Dynabook / JupyterTalk

by H. Hirzel

On 8/22/18, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > Hello again, JesÃºs MarÃ > > On 8/18/18, JesÃºs MarÃ <jmariaguirre(a)gmail.com> wrote: >> I have experience in other kernels and if I am not wrong there aren't >> any >> kernel that installs Jupyter at all. > > Actually nteract (https://nteract.io/desktop) contains everything in > one 50MB package. > Webclient and nodejs server. No Python needed if you are fine with > JavaScript. > So I thought maybe I could just add a Smalltalk kernel > >> In the case of IRKernel, R installs >> the >> needed packages and then you have to execute a command in order to make >> the >> kernel available for Jupyter, please, take a look at >> https://irkernel.github.io/requirements/. > > OK > >> You always need Jupyter on your system, a kernel is just a part in the >> complete Jupyter ecosystem, a kernel is totally unuseful by itself. > > I went for the full anaconda installation in a pristine Ubuntu 18.04.1 > https://www.anaconda.com/download/#linux > It is a Python distribution hundreds of packages including the Jupyter > notebook > >> Jupyter installs ZeroMQ because it uses this library to communicate with >> kernels so you don't need to install ZeroMQ. > > OK > > Now > jupyter notebook > brings up what the screen shot shows. > > However there is no path > /usr/local/share/jupyter/kernels/ > > as the README.md on > > > https://github.com/jmari/JupyterTalk > > > says. > > How did you get it working? > > --Hannes >

Aug. 22, 2018

Re: [Pharo-users] Jupyter notebooks / Dynabook / JupyterTalk

by H. Hirzel

Hello again, JesÃºs MarÃ On 8/18/18, JesÃºs MarÃ <jmariaguirre(a)gmail.com> wrote: > I have experience in other kernels and if I am not wrong there aren't any > kernel that installs Jupyter at all. Actually nteract (https://nteract.io/desktop) contains everything in one 50MB package. Webclient and nodejs server. No Python needed if you are fine with JavaScript. So I thought maybe I could just add a Smalltalk kernel > In the case of IRKernel, R installs > the > needed packages and then you have to execute a command in order to make the > kernel available for Jupyter, please, take a look at > https://irkernel.github.io/requirements/. OK > You always need Jupyter on your system, a kernel is just a part in the > complete Jupyter ecosystem, a kernel is totally unuseful by itself. I went for the full anaconda installation in a pristine Ubuntu 18.04.1 https://www.anaconda.com/download/#linux It is a Python distribution hundreds of packages including the Jupyter notebook > Jupyter installs ZeroMQ because it uses this library to communicate with > kernels so you don't need to install ZeroMQ. OK Now jupyter notebook brings up what the screen shot shows. However there is no path /usr/local/share/jupyter/kernels/ as the README.md on https://github.com/jmari/JupyterTalk says. How did you get it working? --Hannes

Aug. 22, 2018

Re: [Pharo-users] Making TDD in pharo work properly (aka - walkback on a missing class is nasty)

by Tim Mackinnon

Sorry Marcus - you needed to follow the exercism instructions and right click on the exercism package to get an exercism menu to fetch a new exercise (e.g. hello-world). The is then using the TonalReader to pull in code - and then you get a test class that can reference a class that isnât there yet. (But you need to have the exercism cli installed as per the instructions etc). In retrospect I think it might be simpler to download this 6.1 image that already has done that - https://www.dropbox.com/s/x2ot9f8arbbvlyb/PharoExercism.zip?dl=0 It has TwoFerTest that is in that state. If you click on the TestWithName orb, you will see "#new was sent to nilâ - can you can see how my Create button has been fixed per you suggestions to create a class. (The code I wrote is in ExercismTools:DoesNotUnderstandDebugAction>>createMissingClassIn:) Tim > On 22 Aug 2018, at 04:44, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > > >> On 17 Aug 2018, at 14:20, Tim Mackinnon <tim(a)testit.works> wrote: >> >> The direct link to instructions is here: https://exercism.io/tracks/pharo/installation (not sure if you have to be signed up to see it otherwise its in the repo here: https://github.com/exercism/pharo/blob/master/docs/INSTALLATION.md) >> > > Hmâ¦ AllExercismTests seems to not be there (just a green test in Welcome) > > Is this supposed to contain the code below (the createMissingClassActionFor:in:) ? > > It would be nice to have an image that shows exactly the problem (I do not have that much time sadly to work on it,but I do have some time to check if I have an image that is set up to the point where i can easily recreate the problem) > > Marcus > > >> Tim >> >>> On 17 Aug 2018, at 07:17, Marcus Denker <marcus.denker(a)inria.fr> wrote: >>> >>> >>> >>>> On 17 Aug 2018, at 13:00, Tim Mackinnon <tim(a)testit.works> wrote: >>>> >>>> >>>> Hi Marcus - I can put an image somewhere if that helps (do you just need the .image and .changes)? >>>> >>>> Or you can repro from a fresh 6.1 if you follow the exercism Pharo instructions (https://exercism.io/tracks/pharo) to load the first hello world-world example and run the tests. This has my code changes to make create work with a nil class - but maybe we can do better? >>>> >>> I will do that and have a look! >>> >>>> Tim >>>> >>>> >>>> Sent from my iPhone >>>> >>>> On 17 Aug 2018, at 06:21, Marcus Denker <marcus.denker(a)inria.fr> wrote: >>>> >>>>> >>>>> >>>>>> On 10 Aug 2018, at 23:16, Tim Mackinnon <tim(a)testit.works> wrote: >>>>>> >>>>>> Actually I think I figured that bit out - a bit clumsily - (pointers appreciated) >>>>>> >>>>>> createMissingClassActionFor: aMessage in: aContext >>>>>> |errorNode senderContext newClass variableNode | >>>>>> senderContext := aContext sender. >>>>>> errorNode := senderContext method sourceNodeExecutedForPC: senderContext pc. >>>>>> variableNode := errorNode receiver receiver. >>>>>> >>>>>> newClass := OCUndeclaredVariableWarning new node: variableNode; defineClass: variableNode name. >>>>>> aContext restart. >>>>>> >>>>>> However that last line is wrong, as it doesnât restart with my newly defined class - I also tried >>>>>> >>>>>> aContext restartWithNewReceiver: newClass >>>>>> >>>>>> But again, I get a debugger where my class is still bound to nil. So whatâs the trick to re-evaluate with the new class Iâve created? Or maybe Iâm totally on the wrong track (still its very interestingâ¦) >>>>>> >>>>> >>>>> >>>>> what is a bit bad is that you catch the problem âtoo lateâ (that is, the DNU to nil, not the read of nil), so nil is already pushed on the stack at this point. >>>>> >>>>> I tried it in the inspector and at least the class binding was correct after defining the classâ¦ do you have an image with the whole code to try? >>>>> >>>>> Marcus >>>>> >>>>> >>> >> > >

Aug. 22, 2018

Re: [Pharo-users] Error in fresh image

by Jeff Gray

I just tried downloading from the same link again, renamed the image and changes and added to my Pharo folder. Opened them up and the error didn't happen. I haven't rebooted since I had the initial problem but I now can't reproduce it. Meh. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Aug. 22, 2018

Re: [Pharo-users] Making TDD in pharo work properly (aka - walkback on a missing class is nasty)

by Marcus Denker

> On 17 Aug 2018, at 14:20, Tim Mackinnon <tim(a)testit.works> wrote: > > The direct link to instructions is here: https://exercism.io/tracks/pharo/installation (not sure if you have to be signed up to see it otherwise its in the repo here: https://github.com/exercism/pharo/blob/master/docs/INSTALLATION.md) > Hmâ¦ AllExercismTests seems to not be there (just a green test in Welcome) Is this supposed to contain the code below (the createMissingClassActionFor:in:) ? It would be nice to have an image that shows exactly the problem (I do not have that much time sadly to work on it,but I do have some time to check if I have an image that is set up to the point where i can easily recreate the problem) Marcus > Tim > >> On 17 Aug 2018, at 07:17, Marcus Denker <marcus.denker(a)inria.fr> wrote: >> >> >> >>> On 17 Aug 2018, at 13:00, Tim Mackinnon <tim(a)testit.works> wrote: >>> >>> >>> Hi Marcus - I can put an image somewhere if that helps (do you just need the .image and .changes)? >>> >>> Or you can repro from a fresh 6.1 if you follow the exercism Pharo instructions (https://exercism.io/tracks/pharo) to load the first hello world-world example and run the tests. This has my code changes to make create work with a nil class - but maybe we can do better? >>> >> I will do that and have a look! >> >>> Tim >>> >>> >>> Sent from my iPhone >>> >>> On 17 Aug 2018, at 06:21, Marcus Denker <marcus.denker(a)inria.fr> wrote: >>> >>>> >>>> >>>>> On 10 Aug 2018, at 23:16, Tim Mackinnon <tim(a)testit.works> wrote: >>>>> >>>>> Actually I think I figured that bit out - a bit clumsily - (pointers appreciated) >>>>> >>>>> createMissingClassActionFor: aMessage in: aContext >>>>> |errorNode senderContext newClass variableNode | >>>>> senderContext := aContext sender. >>>>> errorNode := senderContext method sourceNodeExecutedForPC: senderContext pc. >>>>> variableNode := errorNode receiver receiver. >>>>> >>>>> newClass := OCUndeclaredVariableWarning new node: variableNode; defineClass: variableNode name. >>>>> aContext restart. >>>>> >>>>> However that last line is wrong, as it doesnât restart with my newly defined class - I also tried >>>>> >>>>> aContext restartWithNewReceiver: newClass >>>>> >>>>> But again, I get a debugger where my class is still bound to nil. So whatâs the trick to re-evaluate with the new class Iâve created? Or maybe Iâm totally on the wrong track (still its very interestingâ¦) >>>>> >>>> >>>> >>>> what is a bit bad is that you catch the problem âtoo lateâ (that is, the DNU to nil, not the read of nil), so nil is already pushed on the stack at this point. >>>> >>>> I tried it in the inspector and at least the class binding was correct after defining the classâ¦ do you have an image with the whole code to try? >>>> >>>> Marcus >>>> >>>> >> >

Aug. 22, 2018

RDF

by Torsten Bergmann

I remember an old discussion on RDF and Pharo: http://forum.world.st/RDF-Framework-and-Pharo-td3526849.html Just as an info and for the records: Now Christian Haider released [RDF] - an RDF/XML implementation in VisualWorks Smalltalk https://wiki.pdftalk.de/doku.php?id=rdf License is MIT. Maybe someone is interested in a port to Pharo and/or Squeak/Cuis.

Aug. 21, 2018