VIM struct: oparg_T

typedef struct oparg_S
{
    int         op_type;        // current pending operator type
    int         regname;        // register to use for the operator
    int         motion_type;    // type of the current cursor motion
    int         motion_force;   // force motion type: 'v', 'V' or CTRL-V
    int         use_reg_one;    // TRUE if delete uses reg 1 even when not
                                // linewise
    int         inclusive;      // TRUE if char motion is inclusive (only
                                // valid when motion_type is MCHAR
    int         end_adjusted;   // backuped b_op_end one char (only used by
                                // do_format())
    pos_T       start;          // start of the operator
    pos_T       end;            // end of the operator
    pos_T       cursor_start;   // cursor position before motion for "gw"

    long        line_count;     // number of lines from op_start to op_end
                                // (inclusive)
    int         empty;          // op_start and op_end the same (only used by
                                // do_change())
    int         is_VIsual;      // operator on Visual area
    int         block_mode;     // current operator is Visual block mode
    colnr_T     start_vcol;     // start col for block mode operator
    colnr_T     end_vcol;       // end col for block mode operator
    long        prev_opcount;   // ca.opcount saved for K_CURSORHOLD
    long        prev_count0;    // ca.count0 saved for K_CURSORHOLD
} oparg_T;