================================================================================ Parse multiple lines with missing information ================================================================================ pick 1 "no release date" "[No release date]" "A" "14m 0s" "http://gnu.org" pick 2 "no release date and author" "[No release date]" "[No author]" "14m 0s" "http://gnu.org" pick 3 "no release date, author and duration" "[No release date]" "[No author]" "[No duration]" "http://gnu.org" -------------------------------------------------------------------------------- (source_file (line (command) (id) (title (quote) (quote)) (date (quote) (quote)) (author (quote) (quote)) (duration (quote) (quote)) (url (quote) (quote))) (line (command) (id) (title (quote) (quote)) (date (quote) (quote)) (author (quote) (quote)) (duration (quote) (quote)) (url (quote) (quote))) (line (command) (id) (title (quote) (quote)) (date (quote) (quote)) (author (quote) (quote)) (duration (quote) (quote)) (url (quote) (quote))))