CURLEX -- "Cursor lexfile". Adds no keywords to BASIC. Modifies the
action of the g-shifted left and right arrow keys. Ordinarily, they go
to the far left and far right, respectively. When CURLEX is in memory
and USER mode is on, they only move 21 spaces left or right,
respectively. This makes it possible to jump back and forth in
display-width chunks, like the HP-75 can, making it easier to edit
long lines. The feature can be disabled by turning USER OFF.

Size: 110 bytes.