-- no continuation
\set i debug(0)
-- one continuation
\set i debug(0 + \
1)
-- two continuations
\set i \
1 + \
1
\set i debug(:i)
-- others
\shell \
  echo \
    3
\setshell i \
  echo \
    4
\sleep \
  2 \
  s
\set i debug(:i)
