Flexible variants in STVARV

DATA: lv_time   TYPE TVARV_VAL,
       lv_tvarvc(25) .
 CONSTANTS lv_prefix(25) VALUE 'ZZXXS_'.

 CONCATENATE lv_prefix p_werks INTO lv_tvarvc.
 SELECT SINGLE low INTO lv_time
    FROM tvarvc
    WHERE name = lv_tvarvc
    AND type = 'P'.
    IF sy-subrc eq 0.
      g_time = lv_time.
    ELSE.
      g_time = '000000'.
    ENDIF.
  CLEAR:lv_time,lv_tvarvc.

  data: lt_tvarvc type table of tvarvc,
        ls_tvarvc type tvarvc,
        ls_mtrgrp type gds_selrange_matkl,
        ls_subct_mtrgrp type gds_selrange_matkl,
        ls_vendors type range_lifnr.

  refresh lt_tvarvc.
  select * into corresponding fields of table lt_tvarvc
    from tvarvc
    where name eq 'ZXXX'
    and type eq 'S'.
  if sy-subrc eq 0.
    loop at lt_tvarvc into ls_tvarvc.
      ls_mtrgrp-sign = ls_tvarvc-sign.
      ls_mtrgrp-option = ls_tvarvc-opti.
      ls_mtrgrp-low = ls_tvarvc-low.
      ls_mtrgrp-high = ls_tvarvc-high.
      append ls_mtrgrp to it_mtrgrp.
    endloop.
    clear ls_tvarvc.
  endif.

TYPES:
       BEGIN OF STRUC_MAILADR,
        MAIL_ADR TYPE ADR6-SMTP_ADDR,
      END OF STRUC_MAILADR.

DATA:G_WA_MAILADR TYPE STRUC_MAILADR,
          G_IT_MAILADR LIKE TABLE OF G_WA_MAILADR.

FORM GET_RECIPENT .
  RANGES LR_RECIPENT FOR ADR6-SMTP_ADDR.

  DATA:  LW_RECIPENT LIKE LINE OF LR_RECIPENT,
         LV_RECIPENT TYPE TVARV_VAL.

  DATA:L_IT_MAILADR LIKE TABLE OF G_WA_MAILADR.

  SELECT LOW INTO TABLE L_IT_MAILADR
    FROM TVARVC
    WHERE NAME = 'ZXXXXXX'
    AND TYPE = 'S'.
  IF SY-SUBRC EQ 0.
    SORT L_IT_MAILADR.
    DELETE ADJACENT DUPLICATES FROM L_IT_MAILADR.
    APPEND LINES OF L_IT_MAILADR TO G_IT_MAILADR.
    REFRESH L_IT_MAILADR.
  ENDIF.
ENDFORM.             

"one common FM
FUNCTION Z_GET_STVARV_VARIANTS .
*"----------------------------------------------------------------------
*"*"Local Interface:
*"  IMPORTING
*"     REFERENCE(I_TVARVC_TYPE) TYPE  RSSCR_KIND
*"     REFERENCE(I_TVARVC_NAME) TYPE  RVARI_VNAM
*"  CHANGING
*"     REFERENCE(CT_TVARVC_VAL) TYPE  ZSTVARV_TAB
*"----------------------------------------------------------------------
  DATA: LT_TVARVC TYPE TABLE OF TVARVC..

  REFRESH LT_TVARVC.
  SELECT * INTO CORRESPONDING FIELDS OF TABLE LT_TVARVC
    FROM TVARVC
    WHERE NAME EQ I_TVARVC_NAME
    AND TYPE EQ I_TVARVC_TYPE.
  IF SY-SUBRC EQ 0.
    APPEND LINES OF LT_TVARVC TO CT_TVARVC_VAL.
  ENDIF.
  FREE LT_TVARVC.

ENDFUNCTION.