insnstr([y, x,] str, n, [attr])
Insert at most n characters of the string.
y
Y-coordinate.
x
X-coordinate.
str
String to insert.
n
Maximal number of characters.
attr
Attributes for characters.
Insert a character string (as many characters as will fit on the
line) before the character under the cursor, up to n characters. If
n is zero or negative, the entire string is inserted. All
characters to the right of the cursor are shifted right, with the
rightmost characters on the line being lost. The cursor position
does not change (after moving to y, x, if specified).