prepocessing directives do not work in embedded notation (single line note), while it works fine within multiline note

Question

!define does not work in single line note (in fact, i see the same issue with !include too):

http://www.plantuml.com/plantuml/uml/SoWkIImgAStDuKhEpot8pqlDAr58LAZcgaNY9u7vYRfsILnv-IMf2aMPwHab2lbf2abM2jNLCNcAAQbfcNcf2hcLOOb52YMfnIKnURMrN0wfUIb0Wm40

while those work fine in multiline note:
http://www.plantuml.com/plantuml/uml/JOx13SCW34Nldk9tW2pGGvGfSeTW6YJ05N4KLOZT6ygbFbX-UjRNNmurHSyKQPFqbinPOL2f_R7ziPbcIrcKKS9hLuY79G2r4ley7FkG6UcpcZBsQkB9msxJx9uu935yb0jNq7qyTTyQSNRewRJSrztd2m00

Answer 1

Sorry, but !define is processed by the preprocessor and MUST be at the beginning of a line.

So we cannot fix this one

Comments

I would doubt that this cannot be fixed. In the string

"\n!define myVar test\n"

technically !define is at the begining of a line. So, might it be a defect of the preprocessor then? Or you should convert such single line note to multiline before passing it further.