int insstr(str)
int insnstr(str, n)
int winsstr(win, str)
int winsnstr(win, str, n)
int mvinsstr(y, x, str)
int mvinsnstr(y, x, str, n)
int mvwinsstr(win, y, x, str)
int mvwinsnstr(win, y, x, str, n)
These functions will insert str in the current line left from
the cursor (as many characters as fit to the line). The characters
on the right of the cursor are moved right and will be lost when the
end of the line is reached. The cursor position is not changed.
y and x are the coordinates to which the cursor is
moved before str will be inserted, n is the number
of characters to insert (with n=0 the entire string is
inserted).