Handler
12.0.0.1 Opening a File and Selecting a Format Handler
The
function handler:edit-file takes a filename and
dispatches it to an appropriate format handler. A format
handler takes a filename and opens a frame for the user to view or
edit the file. If no handler is found for a particular format, then
the file is opened as a raw text file, in a
frame:text% object.
The function handler:open-file lets the user select a
filename using finder:get-file, and then passes the name to
handler:edit-file.