/void model_parameters::userfunction(void)/d
s/ model_parameters::/ df1b2_parameters::/
s/dvariable/df1b2variable/g
s/dvar_matrix/df1b2matrix/g
s/prevariable/df1b2variable/g
s/dvar_vector/df1b2vector/g
/^ *quadratic_re_penalty/p
/^SEPFUN3/{
  s/df1b2variable/funnel_init_df1b2variable/g
  s/df1b2vector/funnel_init_df1b2vector/g
  s/df1b2matrix/funnel_init_df1b2matrix/g
  s/^SEPFUN3//p
}
s/^SEPFUN4//p
#
s/dvar_matrix/df1b2matrix/g
