@startuml !function $multipleM() !return "MMM" !endfunction Bob -> Alice : replace, based on space delimiter - XXX $multipleM()XXX Bob -> Alice : remain, based on missing delimiter - XXX$multipleM()XXX Bob -> Alice : replaced based on "call_user_func" function - XXX%call_user_func($multipleM)XXX ' WRONG ??? / NEW ' maybe better with eval(); But at the moment only numbers are supported? Bob -> Alice : replaced based on "eval" function - XXX%eval($multipleM())XXX ======= Bob -> Alice : should be replaced (space delimiter) - XXX %newline() XXX ' WRONG ???? Bob -> Alice : should be not replaced (if same impl. like $multipleM()) - XXX%newline()XXX ' internal fucntions are not supported atm ' Bob -> Alice : replaced based on "call_user_func" function - XXX%call_user_func(%newline)XXX ' SYNTAX ERROR ' Bob -> Alice : should be replaced (via eval) - XXX%eval(%newline())XXX ====== !$replacedM = "XXX" + $multipleM() + "XXX" Bob -> Alice : replaced based on var - $replacedM !replacedN = "XXX" + %newline() + "XXX" Bob -> Alice : replaced based on var - $replacedN @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art