Function expand_modifiers

v2/engine/function.c:847–884

 */

static int expand_modifiers( STACK * s, int n )
{
    int i;
    int total = 1;
    LIST * * args = stack_get( s );
    for ( i = 0; i < n; ++i )
        total *= list_length( args[ i ] );

    if ( total != 0 )
    {
        VAR_EDITS * out = stack_allocate( s, total * sizeof( VAR_EDITS ) );
        LISTITER * iter = stack_allocate( s, n * sizeof( LIST * ) );
        for ( i = 0; i < n; ++i )
            iter[ i ] = list_begin( args[ i ] );
        i = 0;
        {
            int havezeroed;
        loop:
            memset( out, 0, sizeof( *out ) );
            havezeroed = 0;
            for ( i = 0; i < n; ++i )
                havezeroed = var_edit_parse( object_str( list_item( iter[ i ] )
                    ), out, havezeroed );
            ++out;
            while ( --i >= 0 )
            {
                if ( list_next( iter[ i ] ) != list_end( args[ i ] ) )
                {
                    iter[ i ] = list_next( iter[ i ] );
                    goto loop;
                }
                iter[ i ] = list_begin( args[ i ] );
            }
        }
        stack_deallocate( s, n * sizeof( LIST * ) );
    }
    return total;
}

static LIST * apply_modifiers( STACK * s, int n )
{