OpenCards v2.4 with Markdown Support

[holger brandl]

Hi,


I've released OpenCards v2.4 today with the following new features:

* Preserve aspect ratio when rendering slides
* Support for markdown files as flashcard sets (section titles are questions, section content are answers)
* Improved rendering of Cards (using POI v3.14)

For details about the markdown support see http://opencards.info/help.html#markdown

Feel welcome if you've questions or suggestions.

Best,
Holger

[artcon...@gmail.com]

Please show sample opencards in action. I would like to see it working.
Art

Art

[holger brandl]

Hi artcon,

have you checked out the website http://opencards.info/ already? It contains quite a few screen shots of OpenCards in action. Feel welcome point out missing bits, and I'll add it.

Also, consider to simply download it. It ships with some example data to explore it's feature set.

Best,

Holger

[ogp...@gmail.com]

Holger Brandl,

I want to write some open-source quiz games that can connect to flashcards data, and I doubt that the world needs another flashcard format or flashcard editing program. I would like to be able to interface with whatever file/database flashcard data schema(s) is/are most widely used, but I have no idea what those are.

Is your opencards format widely used? What representation/schema exists in the users file system that I can write my code to access?

Is your opencards markdown format widely used? It looks like a very nice interface against which to program.

Can you offer any advice for my project (what other formats are common, what works, what doesn't, etc)?

TIA,

Al

[Holger Brandl]

Dear AI,

thanks for your interest in OpenCards

<ogp...@gmail.com> schrieb am Do., 30. Nov. 2017 um 22:24 Uhr:

Holger Brandl,

I want to write some Hi open-source quiz games that can connect to flashcards data, and I doubt that the world needs another flashcard format or flashcard editing program.  I would like to be able to interface with whatever file/database flashcard data schema(s) is/are most widely used, but I have no idea what those are.

Is your opencards format widely used? What representation/schema exists in the users file system that I can write my code to access?

No schema is needed, that's the beauty. Headers are questions, content below headers is answers. 

 

Is your opencards markdown format widely used?  It looks like a very nice interface against which to program.

Not widely, but there seems continued community interest.

 

Can you offer any advice for my project (what other formats are common, what works, what doesn't, etc)?

Release early, release often.

 

Cheers,

Holger

TIA,

Al





On Monday, April 11, 2016 at 12:44:24 PM UTC-7, holger brandl wrote:
> Hi,
>
>
> I've released OpenCards v2.4 today with the following new features:
>
> * Preserve aspect ratio when rendering slides
> * Support for markdown files as flashcard sets (section titles are questions, section content are answers)
> * Improved rendering of Cards (using POI v3.14) For details about the markdown support see http://opencards.info/help.html#markdown
>
> Feel welcome if you've questions or suggestions.
>
> Best,
> Holger

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[m...@josequesada.com]

Hi Holger,

Using 2.5, opencards crashes when trying to study a .md file. I've tried using the example in the documentation, but it still crashes. Any workarounds? Anything I may be doing wrong? Here's the file:

# What is a blocking factor?


A blocking factor is a source of variability that is not of primary interest to
the experimenter

## What is a factorial design?

- factorial design is used to evaluate two or more factors simultaneously.
- The treatments are combinations of levels of the factors.
– more efficient – allow interactions to be detected.
- Nice example in V&R:p165


## What is the code snippet to do XX?

The code snippet is

```
a = 1
```

## General Overview

Since Opencards just treats sections with titles ending with ? as questions we
can even mix documentation with questions and answers.

[m...@josequesada.com]

Oh, it actually crashing with a .ppt file too.
I'm on linux (Manjaro), if that's any use debugging.
It may be calling a libreoffice library that is too old or too new. In fact, it calls it openoffice in messages :)

[m...@josequesada.com]

Here's the error log from the command line:
INFO: UpdateCheck: installed version 2.5
Oct 27, 2018 5:52:57 PM info.opencards.Utils log
INFO: extracting flashcards from file '/home/quesada/Seafile/notes/Negotiating the unnegotiable.ppt'...
problem report submission failed because of java.net.URISyntaxException: Illegal character in opaque part at index 604: mailto:sup...@opencards.info?subject=OpenCards%20problem%20report:%20java.util.TreeMap.getEntry(TreeMap.java:347)&body=Dear%20OpenCards-team,%0D%0A%0D%0Athe%20following%20problem%20occurred%20while%20I%20was%20using%20OpenCards:%20%0D%0A%0D%0AOpenCards%20version:%202.5%0D%0APlatform:%20Linux%204.14.78-1-MANJAROJava%20Version:%201.8.0_192%20-%20Oracle%20Corporation%0D%0A%0D%0AThread[Thread-5,6,main]%0D%0A%0D%0Ajava.lang.NullPointerException%0D%0A%0D%0Ajava.util.TreeMap.getEntry(TreeMap.java:347)%0D%0Ajava.util.TreeMap.get(TreeMap.java:278)%0D%0Aorg.apache.poi.hslf.usermodel.HSLFSlideShowEncrypted.<init>(HSLFSlideShowEncrypted.java:90)%0D%0Aorg.apache.poi.hslf.usermodel.HSLFSlideShowImpl.read(HSLFSlideShowImpl.java:284)%0D%0Aorg.apache.poi.hslf.usermodel.HSLFSlideShowImpl.buildRecords(HSLFSlideShowImpl.java:275)%0D%0Aorg.apache.poi.hslf.usermodel.HSLFSlideShowImpl.<init>(HSLFSlideShowImpl.java:179)%0D%0Aorg.apache.poi.hslf.usermodel.HSLFSlideShowImpl.<init>(HSLFSlideShowImpl.java:130)%0D%0Aorg.apache.poi.hslf.usermodel.HSLFSlideShowImpl.<init>(HSLFSlideShowImpl.java:119)%0D%0Aorg.apache.poi.hslf.usermodel.HSLFSlideShow.<init>(HSLFSlideShow.java:166)%0D%0Ainfo.opencards.pptintegration.PPTSerializer.readFlashcardsFromFile(PPTSerializer.java:36)%0D%0A%0D%0A%0D%0AAdd%20more%20comments%20here%20if%20necessary!!%0D%0A%0D%0A%20Best,%20...

[jo...@deeplearningretreat.com]

On Monday, April 11, 2016 at 9:44:24 PM UTC+2, holger brandl wrote:

I seem to have found a workaround. If I edit one of the example ppts, then it works. So I can clone and edit those. I haven't found a solution for markdown import though.

[jo...@deeplearningretreat.com]

Well, workaround is brittle. If I do anything, even changing the file name, it doesn't work anymore. Oh well.

[jo...@deeplearningretreat.com]

Yeah, any change produces 'file contains no valid flashcards. One possible problem is that I'm editing with libreoffice, which may have compatibility problems with ppt. But it seems the java lib reading the file is openoffice, so this could be an advantage actually.

[jo...@deeplearningretreat.com]

I've been struggling with this all day. Problem is, google slides doesn't save as ppt, so those of us on linux are screwed if the problem is indeed libreoffice. I tried 6.1 and 6.0. Nothing helps.

The fact that .md files are converted, but fail to work when trying to 'study' them hints that it may not be the .ppt format, or at least not alone?

[Holger Brandl]

Could you submit a reproducible example to the project issue tracker https://github.com/holgerbrandl/opencards/issues

Thanks,

Holger

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