+$ card info
a card encodes a command to a page
the most common card is the empty card: [~ ~]
which means:
“something that this page cares about has changed you may want to re-render”
when you save a file in hawk, code.page is overwritten, then an empty card is poked to it.
the system will pre-populate cards with standard data.
/sys/src p/~migrev-dolseg /sys/our p/~migrev-dolseg /sys/now da/~2024.1.1 /sys/eny uv/0v... /sys/from t/'/path/to/originator'
by convention, the root dime of the card (the dime at / in the info) is the 'kind' of the command. ie. the identifier for the intended behaviour.
so for a todo list the following cards might be used for adding and deleting.
/ tas/%add-todo /todo t/'finish writing the manual'
/ tas/%delete-todo /index ud/3
in your hawk-500 subject, the +iu (info utilites) engine is bound to the c face for the card.
(rib:c /sys/our) :: p/~migrev-dolseg (pib:c /sys/our) :: "~migrev-dolseg"