获取SAP标准函数的说明（含参数和异常）
report ZGET_FUNC_DES
TYPE-POOLS : slis.
PARAMETERS: p_func LIKE fupararef-funcname. " Name of Function Module
DATA : BEGIN OF i_tab OCCURS 0,
funcname LIKE fupararef-funcname, " Name of Function Module
paramtype LIKE fupararef-paramtype, " Parameter type
pposition LIKE fupararef-pposition, " Internal Table, Current Line Index
optional LIKE fupararef-optional, " Optional parameters
parameter LIKE fupararef-parameter, " Parameter name
defaultval LIKE fupararef-defaultval, " Default value for import parameter
structure LIKE fupararef-structure, " Associated Type of an Interface Parameter
stext LIKE funct-stext, " Short text
END OF i_tab.
DATA: BEGIN OF mtab_new_prog OCCURS 0,
line(172) TYPE c,
END OF mtab_new_prog.
DATA: funcdesc LIKE tftit-stext, " Short text for function module
mylen TYPE i,
myrc TYPE i.
CONSTANTS: myhats(40) VALUE '^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^'.
TRANSLATE p_func TO UPPER CASE.
SELECT SINGLE
tftit~stext " Short text for function module
INTO funcdesc
FROM tftit
WHERE tftit~funcname = p_func
AND tftit~spras = sy-langu.
TRANSLATE p_func TO LOWER CASE.
CONCATENATE 'CALL FUNCTION ' p_func ' " ' funcdesc INTO mtab_new_prog-line.
APPEND mtab_new_prog.
TRANSLATE p_func TO UPPER CASE.
SELECT
fupararef~funcname " Name of Function Module
fupararef~paramtype " Parameter type
fupararef~pposition " Internal Table, Current Line Index
fupararef~optional " Optional parameters
fupararef~parameter " Parameter name
fupararef~defaultval " Default value for import parameter
fupararef~structure " Associated Type of an Interface Parameter
funct~stext " Short text
INTO TABLE i_tab
FROM fupararef
INNER JOIN funct
ON fupararef~funcname = funct~funcname
AND fupararef~parameter = funct~parameter
AND funct~spras = sy-langu
WHERE fupararef~funcname = p_func
AND fupararef~r3state = 'A'
ORDER BY fupararef~paramtype
fupararef~pposition.
LOOP AT i_tab.
AT NEW paramtype.
CASE i_tab-paramtype.
WHEN 'C'.
MOVE ' CHANGING' TO mtab_new_prog-line.
WHEN 'E'.
MOVE ' IMPORTING' TO mtab_new_prog-line.
WHEN 'I'.
MOVE ' EXPORTING' TO mtab_new_prog-line.
WHEN 'T'.
MOVE ' TABLES' TO mtab_new_prog-line.
WHEN 'X'.
MOVE ' EXCEPTIONS' TO mtab_new_prog-line.
ENDCASE.
APPEND mtab_new_prog.
ENDAT.
IF i_tab-optional = 'X'.
mtab_new_prog-line = '*^^^'.
ELSE.
mtab_new_prog-line = '^^^^'.
ENDIF.
IF i_tab-paramtype = 'X'.
MOVE i_tab-pposition TO i_tab-defaultval.
CONDENSE i_tab-defaultval.
ELSE.
TRANSLATE i_tab-parameter TO LOWER CASE.
ENDIF.
CONCATENATE mtab_new_prog-line i_tab-parameter '^=^' INTO mtab_new_prog-line.
IF i_tab-defaultval IS NOT INITIAL.
CONCATENATE mtab_new_prog-line i_tab-defaultval INTO mtab_new_prog-line.
ENDIF.
mylen = STRLEN( mtab_new_prog-line ).
IF mylen < 31.
COMPUTE mylen = 31 - mylen.
ELSE.
MOVE 1 TO mylen.
ENDIF.
TRANSLATE i_tab-structure TO LOWER CASE.
CONCATENATE mtab_new_prog-line myhats+0(mylen) ' " ' i_tab-structure INTO mtab_new_prog-line.
mylen = STRLEN( mtab_new_prog-line ).
IF mylen < 47.
COMPUTE mylen = 47 - mylen.
ELSE.
MOVE 1 TO mylen.
ENDIF.
CONCATENATE mtab_new_prog-line myhats+0(mylen) ' ' i_tab-stext INTO mtab_new_prog-line.
APPEND mtab_new_prog.
ENDLOOP. " LOOP AT I_TAB
CONCATENATE ' . " ' p_func INTO mtab_new_prog-line.
APPEND mtab_new_prog.
LOOP AT mtab_new_prog.
TRANSLATE mtab_new_prog-line USING '^ '.
MODIFY mtab_new_prog.
IF mtab_new_prog = space.
SKIP 1.
ENDIF.
WRITE: / mtab_new_prog.
ENDLOOP. " LOOP AT MTAB_NEW_PROG
* Write the beautiful program code to ClipBoard from internal table
CALL METHOD cl_gui_frontend_services=>clipboard_export
IMPORTING
data = mtab_new_prog[]
CHANGING
rc = myrc.
