How to identify call to system function through ABAP code

[sanjana_lingras]

Hi Experts,

We need quick help. we are building tool for ABAP coding standards and we need to identify a call to system function in custom code and give appropriate error.

Error would be "Call of a System Function: CALL 'cfunc' is only intended for internal usage. Incompatible changes and further development is possible at any time and without warning or notice." 

So is there anyway to identify call to system functions, we are basically trying to find pattern to search in code for system function.

Can we get list of system functions from any table , so that particular list of functions can be searched in program?

Regards,

Sanjana

[ThangaPrakash]

Hello Sanjana,

Read the source code using the FM "RPY_PROGRAM_READ " and check in internal table "SOURCE_EXTENDED" for the statement, then raise your message.

Regards,

Thanga

[sanjana_lingras]

Hi Prakash,

We are able to read source code but we need inputs regarding the pattern for system functions or list of system functions which we can search in program.

Any idea from where we ca find available system functions?

Regards,

Sanjana

[Former Member]

Sample report

data    prog type c length 30.

data    itab type table of string.

data:   results type match_result_tab.

prog = 'RSWATCH0'.

read report prog into itab.

find all occurrences of regex 'CALL ''C_'

   in table itab

*  RESPECTING CASE

   results results.

[ThangaPrakash]

Hello Sanjana,

I could find only below 4 arithmetic operations from the ABAP documentation.

You can also look into the below documentation for further info.

Regards,

Thanga