try to fix regular expression interpolation
try to fix regular expression interpolation

codecombat/codecombat,jeremiahyan/codecombat,codecombat/codecombat,javatlacati/codecombat,jeremiahyan/codecombat,javatlacati/codecombat,codecombat/codecombat,jeremiahyan/codecombat,codecombat/codecombat,javatlacati/codecombat,jeremiahyan/codecombat,javatlacati/codecombat,javatlacati/codecombat,codecombat/codecombat