    # A sample file to test syntax highlighting.

    nop "double \n quoted" and 'single '' quoted' # comment

    # Various variable contexts
    nop $pid
    var var-name = { var fn-name~ = {var not-var-name} }
    nop (set var-name = foo | tmp var-name = bar); del var-name
    for var-name [] { }
    try { } catch var-name { }

    # Builtin functions
    != a (nop b) | echo c

    # Builtin special command
    and a b # "operator"
    use re # "other"
    if a { } elif b { } else { }
    try { } except err { } else { } finally { }

    # Metacharacters
    echo ** () []

    # Regression tests
    set-env # should highlight entire set-env
    set-foo # should highlight nothing