Specify required packages in each question

[dbosk]

Some questions use "exotic" packages, it would be nice to extract them and put them in the preamble automatically. Lennart's exam generator uses the following format:

\usepackage{enumitem}
\usepackge{listings}

\question[3]\label{q:typomvandling}
Utifrån de typomvandlingar som sker i programmet nedan. 

But this restricts the format to only one question per .tex-file and ones the question is incorporated in an exam, this information is lost --- so the exam cannot be used as an input database to examgen.

However, questions formatted like this can be used with examgen, simply add the following filter to the Makefile:

.PHONY: filter-usepackage
filter-usepackage: questions.tex
    cat questions.tex | grep "usepackage" | sort | uniq >> preamble.tex
    sed -i "/^\\\\usepackage/d" questions.tex

exam.pdf: filter-usepackage

One must still manually resolve option conflicts though.

[dbosk]

Well, one could simply merge the preamble.tex from every exam:

cat preamble0.tex ... preambleN.tex | sort | uniq >> preamble.tex

It should be possible to sort based on package name, that would make the required manual editing easier.

[dbosk]

Not necessary when there is a template for the exam.