ABAP Keyword Documentation → ABAP - Reference → Processing Internal Data → Character String and Byte String Processing → Statements for Character String and Byte String Processing → SHIFT
SHIFT - direction
Other versions: 7.31 | 7.40 | 7.54
Syntax
... [LEFT|RIGHT] [CIRCULAR].
Extras
1. ... LEFT|RIGHT
2. ... CIRCULAR
Addition 1
... LEFT|RIGHT
Effect
The shift direction is defined for left or right using LEFT or RIGHT.
If none of the additions is specified, LEFT is used implicitly. If the data
object dobj is a string and the addition CIRCULAR
is not specified, it is shortened - on shifting - to the left by the positions moved and lenghtened accordingly if shifted to the right.
Addition 2
... CIRCULAR
Effect
Using the addition CIRCULAR, the contents shifted from the data object, to
the left or to the right, are inserted again in the positions that become available on the opposite
side. If the addition CIRCULAR is specified, data objects of the type
string or xstring are not shortened or lengthened; instead, they are treated as data objects of fixed length.
Example
This example varies the second example under places. Using the addition
CIRCULAR, the result becomes "you know I know".
DATA text TYPE string VALUE `I know you know `.
SHIFT text UP TO 'you' LEFT CIRCULAR.