Add support for multiple-blanks and multiple-dropdowns questions

[gpoore]

See https://github.com/gpoore/text2qti/issues/1#issuecomment-660259513.

[gpoore]

@substance9 Thanks for working on multiple-blanks and multiple-dropdowns questions. Have you had any more thoughts about the syntax for multiple-blanks and multiple-dropdowns questions? In your fork, it looks like you are customizing the overall syntax for what you prefer. If that's the case and you aren't really concerned with the syntax that I'm using, then as I have time I will go ahead and add support for these types of questions, with some sort of syntax that is consistent with what I've used so far.

[hpmsi1]

Thank you for a great software. Is support for multiple-blanks and multiple-dropdowns going to be available soon? This would be a very useful feature.

[gpoore]

@hpmsi1 I may try to add support for those types of questions myself at some point, possibly drawing on the existing fork that added at least some support. But even if I do try that at some point, January or February would likely be the absolute best-case scenario.

[hpmsi1]

Thank you

[zhijieshi]

Any updates?

In Respondus 4.0, the format is to place answers in []. For example,

There are 3 blanks in this question: 3+4 = [7], 5-5 = [0], 1/4 = [0.25, .25]

In Blackboard Ultra, the format is similar, but ';', instead of ',', separates multiple answers.

[gpoore]

@zhijieshi No updates. I am currently adding support for exporting PDF solutions, and probably won't have time myself to consider major new features for a while.

[schrodinstein]

Just wanted to add my voice to this. Multiple blanks and dropdowns would be absolutely wonderful!

Thank you for this life-saving tool.