func: char *dfaexec(struct dfa *d,const char *begin,char *end,int allow_nl,size_t *count,int *backref) state_num s ; state_num s1 ; const unsigned char * p ; state_num * * trans ; state_num * t ; unsigned char eol = eolbyte ; s = s1 = 0; p = ( ( const unsigned char * ) begin ); trans = d -> trans; * end = eol; if ( d -> mb_cur_max > 1 )  while ( ( t = trans [ s ] ) != ( ( void * ) 0 ) )  if ( p > buf_end )  s1 = s; if ( s == 0 )  if ( ( ( char * ) p ) >= end )  if ( d -> states [ s ] . mbps . nelem == 0 )  s = t [ * ( p ++ ) ]; if ( backref )  s = transit_state ( d , s , & p ); trans = d -> trans; while ( ( t = trans [ s ] ) != ( ( void * ) 0 ) )  s1 = t [ * ( p ++ ) ]; if ( ( t = trans [ s1 ] ) == ( ( void * ) 0 ) )  state_num tmp = s ; s = s1; s1 = tmp; s = t [ * ( p ++ ) ]; if ( s >= 0 && ( ( char * ) p ) <= end && d -> fails [ s ] )  if ( d -> success [ s ] & sbit [ * p ] )  s1 = s; if ( d -> mb_cur_max > 1 )  s = transit_state ( d , s , & p ); trans = d -> trans; s = d -> fails [ s ] [ * ( p ++ ) ]; if ( ( ( char * ) p ) > end )  if ( s >= 0 )  trans = d -> trans; if ( p [ - 1 ] == eol && allow_nl )  s = d -> newlines [ s1 ]; s = 0; static state_num transit_state(struct dfa *d,state_num s,const unsigned char **pp) size_t nelem = d -> states [ s ] . mbps . nelem ; if ( nelem > 0 )  match_lens = check_matching_with_multibyte_ops ( d , s , ( * pp - buf_begin ) ); static int *check_matching_with_multibyte_ops(struct dfa *d,state_num s,size_t idx) int * rarray ; rarray = ( ( sizeof ( ( * rarray ) ) == 1 ? xmalloc ( d -> states [ s ] . mbps . nelem ) : xnmalloc ( d -> states [ s ] . mbps . nelem , sizeof ( ( * rarray ) ) ) ) ); while ( 0 )  position pos = d -> states [ s ] . mbps . elems [ i ] ; switch ( d -> tokens [ pos . index ] )  rarray [ i ] = match_anychar ( d , s , pos , idx ); rarray [ i ] = match_mb_charset ( d , s , pos , idx ); return rarray ; 