Display a Lasso code file with line numbers

The code below will output the contents of a Lasso source file as an ordered list. The default get mode is to read characters at a time instead of lines, so it is necessary for me to set the get mode specifically to reading lines in the [file] creator method below.

Code

local(my_file) = file('index.lasso', io_file_o_rdonly, file_modeline)
handle => {#my_file->close}
'<ol>'
#my_file->forEachLine => {^
    '<li>' + string(#1)->encodehtml + '</li>'
^}
'</ol>'

Result

<?=
    library_once('/_config/conf.lasso')
    
    date
?>