sverweij/mscgen_js

# test20 - attributes without quotes, and empty labels 
#          ("" shouldn't render the label name, but an 
#          empty label ...)
# example by Olivier Bonaventure; found on 
# http://perso.uclouvain.be/olivier.bonaventure/blog/html/2013/09/10/msc.html
# (sample subject to Creative Commons Attribution-ShareAlike
# 3.0 Unported license according to 
# http://perso.uclouvain.be/olivier.bonaventure/blog/html/pages/about.html)


msc {
    a [label="", linecolour=white],
    b [label="Host A", linecolour=black],
    z [label="Physical link", linecolour=white],
    c [label="Host B", linecolour=black],
    d [label="", linecolour=white];

    a=>b [ label = "DATA.req(0)" ] ,
    b>>c [ label = "", arcskip=1];
    c=>d [ label = "DATA.ind(1)" ];
}