The character $ in a question can be confusing.

[bobkummerfeld]

A question like:
Quiz title: Shell if

1. What does this script print: NAME=Alice; if [ $NAME == Alice ] ; then echo Hi Alice!; fi

causes an infinite loop. If I remove the $ it works. I assume this is interacting with the LaTex math syntax. $$ seems to work..

I suggest adding to the documentation to point this out.

[bobkummerfeld]

$$ is shown as $$ on the question. Is there a way of getting a single $ in the question? Also, \$ doesn't work - give infinite loop again.

[gpoore]

It should work now in the dev version after the last commit; the $ will just pass through as $ if it isn't followed by another $ later that fulfills the LaTeX math pattern. The regex for finding LaTeX math was causing catastrophic backtracking.

[bobkummerfeld]

Works fine now - thanks!