ABAP string processing

ABAP cheat sheets . 

https://github.com/SAP-samples/abap-cheat-sheets

 

Concatenating Strings

"&& and string template
DATA(s1) = `AB` && `AP`. "ABAP
DATA(s2) = `ab` && `ap` && ` ` && s1. "abap ABAP
DATA(s3) = |{ s1 }. { s2 }!|. "ABAP. abap ABAP!

"CONCATENATE statements
CONCATENATE s1 s2 INTO s3. "ABAPabap ABAP

"Multiple data objects and target declared inline
CONCATENATE s1 ` ` s2 INTO DATA(s5). "ABAP abap ABAP

CONCATENATE s1 s2 s5 INTO DATA(s6). "ABAPabap ABAPABAP abap ABAP

"You can also add a separation sign using the addition SEPARATED BY
CONCATENATE s1 s2 INTO s3 SEPARATED BY ` `. "ABAP abap ABAP

CONCATENATE s1 s2 INTO s3 SEPARATED BY `#`. "ABAP#abap ABAP

"Keeping trailing blanks in the result when concatenating fixed length
"strings. The ones of variable length strings are respected by default.
CONCATENATE 'a  ' 'b  ' 'c  ' INTO DATA(ch) RESPECTING BLANKS. "'a  b  c  '

"Concatenating lines of internal tables into a string
CONCATENATE LINES OF itab INTO t SEPARATED BY ` `.

"Using concat_lines_of
s1 = concat_lines_of( table = itab ). "Without separator
s1 = concat_lines_of( table = itab sep = ` ` ). "With separator

Splitting Strings

DATA(s1) = `Hallo,world,123`.
DATA: s2 TYPE string, 
      s3 TYPE string,
      s4 TYPE string.

SPLIT s1 AT `,` INTO s2 s3 s4. "s2 = Hallo / s3 = world / s4 = 123

"Less data objects than possible splittings
SPLIT s1 AT `,` INTO s2 s3. "s2 = Hallo / s3 = world,123

"Splitting into internal table
DATA itab TYPE TABLE OF string.
SPLIT s1 AT ',' INTO TABLE itab. "Strings are added to itab in individual lines without comma

"String function segment returning the occurrence of a segment
"index parameter: number of segment
s2 = segment( val = s1 index = 2 sep = `,` ). "world