O2IL6JT26B6BJ4LHJYWRBY5LICTKXB3QYIS5S7IV4WSIT2EF7HBQC
end
-- cursor loc in particular differs from other locs in one way:
-- pos might occur just after end of line
function edit.invalid_cursor1(State)
local cursor1 = State.cursor1
if cursor1.line > #State.lines then return true end
local l = State.lines[cursor1.line]
if l.mode ~= 'text' then return false end -- pos is irrelevant to validity for a drawing line
return cursor1.pos > #State.lines[cursor1.line].data + 1