Can't seem to pass multiline text to preprocessor macro

Question

Plantuml doesn't seem to accept multiline text as macro arguments. So in the following text the last TestFolder line causes an error. Is theer a trick I am missing? Thanks!

!definelong TestFolder(TEXT)
folder test2 [
TEXT
]
!enddefinelong

TestFolder("testtext")
TestFolder("test
text")

Answer 1

You can't have line breaks like this on the macros.

You may use something like this instead:

@startuml
!definelong TestFolder(name, TEXT)
folder name [
TEXT
]
!enddefinelong

TestFolder(a, "testtext")
TestFolder(b, "test\ntext")
@enduml

Comments

Also it is possible to use the Macro Variable in Quotes "TEXT", which protect agains some more Issues

Answer 2

This solution doesn't work with notes as \n is not parsed in notes.

@startuml
!definelong CustomNote(text)
note
text
end note
!enddefinelong

CustomNote("first line\nsecond line")

@enduml

The note has one line:

first line\nsecond line

What I want is:

first line
second line

How can I achieve this?