merging FM

Hey.

I have an internal table with simple strings in it:

itab[1] = 'test one two three'

itab[2] = 'test one two three four'

itab[3] = 'test one two three four five'

I would like to fill it in a way that consider the words completion, meaning that if my cell length in the new internal table is 30 the new table will like that:

new_itab[1] = 'test one two three test one'

new_itab[2] = 'two three four test one two'

new_itab[3] = 'three four five'

If its length is 40, it'll look like that:

new_itab[1] = 'test one two three test one two three'

new_itab[2] = 'four test one two three four five'

I don't want to use many abap commands but in a FM, does anyone know such one ?

I know that FM HRIQ_GB_UCAS_TEXT_WRAP_AROUND does the opposite.

Thanks in advance,

Rebeka