---- femto text editor ----

based on nano.

draws graphics using ANSI control sequences.

this means the terminal must be in raw mode with echo
turned off. the `femto` wrapper script achieves this
using `sttry raw -echo` (it also restores the previous
terminal settings on exit).

you must provide a path to a file when starting femto:

    ./femto femto.tal

----- current status -----

 - can't save changes
 - doesn't support long lines/horizontal scrolling
 - no search (or search&replace)
 - no help messages

----- special key bindings -----

 C-o   save (TODO)
 C-x   quit

 C-a   go to beginning of line
 C-e   go to end of line

 C-b   move back one character
 C-f   move forward one character
 C-n   move down one line
 C-p   move up one line

 M-v   page up
 C-v   page down

 M-<   go to start of file
 M->   go to end of file
 M-g   go to line (TODO)

 C-l   refresh screen
 C-d   delete

    (C stands for Control)
    (M stands for Meta, often Alt or Option)