Sets the current line to the line number specified. The next call to
next_block will return the data on the specified line in the
first row. The number of the current line can be obtained using
current_line.
goto(x, i, ...)# S4 method for laf,numeric
goto(x, i, ...)
an object the supports the goto method, such as an laf
object.
the line number .
additional parameters passed to other methods.