fitb()
Create a fill-in-the-blank question
mcq()
Create a multiple-choice question
torf()
Create a true-or-false question
longmcq()
Longer MCQs with Radio Buttons
hide()
Create button revealing hidden content
unhide()
End hidden HTML content
total_correct()
Display total correct
webexercises_default()
Create default webexercises document
style_widgets()
Change webexercises widget style
escape_regex()
Escape a string for regex
round2()
Round up from .5
strip_lzero()
Strip leading zero from numeric string
add_webexercises_to_bookdown()
Add webexercises helper files to bookdown