CHECK_STRING_SUCCESSOR SAP Function module

CHECK_STRING_SUCCESSOR is a standard SAP function module available within R/3 SAP systems depending on your version and release level. Below is the pattern details for this FM showing its interface including any import and export parameters, exceptions etc as well as any documentation contributions (Comments) specific to the object.

See here to view full function module documentation and code listing, simply by entering the name CHECK_STRING_SUCCESSOR into the relevant SAP transaction such as SE37 or SE80.

Associated Function Group: IPW0
Released Date: Not Released
Processing type: Normal fucntion module

Pattern for FM CHECK_STRING_SUCCESSOR - CHECK STRING SUCCESSOR

CALL FUNCTION 'CHECK_STRING_SUCCESSOR' "
  EXPORTING
    i_base_string =             " clike
    i_check_string =            " clike
    i_alphabet =                " syabcde       Constant: Alphabet (A,B,C,...)
*   i_digits = '0123456789'     " clike
*   i_special_chars = '-'       " c
*   i_with_second_digit = ' '   " xfeld         Checkbox
  EXCEPTIONS
    NOT_SUCCESSOR = 1           "
    STRINGS_EQUAL = 2           "
    BASE_STRING_WRONG = 3       "
    CHECK_STRING_WRONG = 4      "
    NOT_SAME_LENGTH = 5         "
    DIGITS_MISSING = 6          "
    WRONG_STRING = 7            "
    INTERNAL_ERROR = 8          "
    .  "  CHECK_STRING_SUCCESSOR

ABAP code example for Function Module CHECK_STRING_SUCCESSOR

The ABAP code below is a full code listing to execute function module CHECK_STRING_SUCCESSOR including all data declarations. The code uses the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the original method of declaring data variables up front. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8).

DATA(ld_i_base_string) = 'Check type of data required'.

DATA(ld_i_check_string) = 'Check type of data required'.

DATA(ld_i_alphabet) = 'some text here'.

DATA(ld_i_digits) = 'some text here'.

DATA(ld_i_special_chars) = 'some text here'.

DATA(ld_i_with_second_digit) = 'some text here'.
.

CALL FUNCTION 'CHECK_STRING_SUCCESSOR'
  EXPORTING
    i_base_string =              ld_i_base_string
    i_check_string =             ld_i_check_string
    i_alphabet =                 ld_i_alphabet
*   i_digits =                   ld_i_digits
*   i_special_chars =            ld_i_special_chars
*   i_with_second_digit =        ld_i_with_second_digit
  EXCEPTIONS
    NOT_SUCCESSOR =              1
    STRINGS_EQUAL =              2
    BASE_STRING_WRONG =          3
    CHECK_STRING_WRONG =         4
    NOT_SAME_LENGTH =            5
    DIGITS_MISSING =             6
    WRONG_STRING =               7
    INTERNAL_ERROR =             8
    .  "  CHECK_STRING_SUCCESSOR

IF SY-SUBRC EQ 0.
  "All OK
ELSEIF SY-SUBRC EQ 1. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 2. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 3. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 4. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 5. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 6. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 7. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 8. "Exception
  "Add code for exception here
ENDIF.

ABAP code to compare 7.40 inline data declaration with original syntax

The below ABAP code uses the older none in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. It may also be useful if you are using an older version of SAP as some of the newer syntax above, such as the @DATA is not available until 4.70 EHP 8.

DATA:

ld_i_base_string
 
 TYPE CLIKE ,
ld_i_check_string
 
 TYPE CLIKE ,
ld_i_alphabet
 
 TYPE SYABCDE ,
ld_i_digits
 
 TYPE CLIKE ,
ld_i_special_chars
 
 TYPE C ,
ld_i_with_second_digit
 
 TYPE XFELD .


ld_i_base_string = 'some text here'.
ld_i_check_string = 'some text here'.
ld_i_alphabet = 'some text here'.
ld_i_digits = 'some text here'.
ld_i_special_chars = 'some text here'.
ld_i_with_second_digit = 'some text here'.