Effect
On list output, automatically links certain characters together
to form continuous lines or boxes, if there is no space between them:
vertical
lines, output with the system field SY-VLINE or using a field with the
contents ” | ” (vertical line)
horizontal
lines, output with the system field SY-ULINE or using a field with at
least 2 consecutive minus signs ” — “.
Exactly how each line segment is output (e.g. whether as straight line, corner,
T-piece or cross) depends on the adjoining characters.
A good rule of thumb sipulates that if the cell adjacent to a line character
also contains a line character, the missing piece required to form a connection
is added. If an adjacent cell does not also contain a line character, the line
character is truncated on that side. Line characters standing on their own remain
unchanged.
This technique is sufficient to cope with most cases (e.g. tables, boxes,
simple hierarchies). However, no matter how carefully you use some empty
characters and lines, it is not possible to stop adjacent line characters being
joined in an inappropriate way (e.g. very compact hierarchy diagrams, or
densely boxes). The solution here is to output the required line segment
explicitly using the addition … AS LINE .
The include (or the more comprehensive include )
contains the relevant identifiers for lines as constants, e.g.
LINE_TOP_LEFT_CORNER , LINE_BOTTOM_MIDDLE_CORNER .
Note
Lines cannot have any other display attributes. If
attributes such as color ( COLOR ), reverse video ( INVERSE ) or intensified (
INTENSIFIED ) are set, these are ignored on output. If the ready for input
attribute ( INPUT ) is set, the actual characters (minus sign, vertical line)
are displayed.
Example
Output two nested corner segments:
INCLUDE .
ULINE /1(50).
WRITE: / SY-VLINE NO-GAP, LINE_TOP_LEFT_CORNER AS LINE.
ULINE 3(48).
WRITE: / SY-VLINE NO-GAP, SY-VLINE NO-GAP.
Index
© SAP AG 1996
