Fix pagination

 - The error is that the Parsers is stateles.

 Between iterations the library is recreated, the only variables that
 are preserve are $state->total y $state->pointer

 The state between iterator is preserve by putting the result of fseek
 in the variable state->pointer and setting the parser with it in the
 next iteration...

 big wooooow for me... no more groping, no more shooting in the dark