Advanced Use

Preprocessor

• !define, !undef

• including files

  • can .zip a file and include it
  • You can use system environment variable or constant definition when using include

  !include %windir%/test1.txt
  !define PLANTUML_HOME /home/foo
  !include PLANTUML_HOME/test1.txt
  

• include URL

• constants

• date and time

Macros

• !definelong
• !enddefinelong
• default values for macro parameters !define some_macro(x, y = "some default" , z = 'another default' ) x and y and z
• conditions
• append text to a macro argument use the ## syntax.
• a macro can be defined by another macro
• can have varying argument count (polymorphic)

Icon Sets (“StdLib”)

@startuml
listicons
@enduml

Sprites

@startuml listicons @enduml

Running from Other Programs

Java

Ex:

Python

Ex:

• Can extract the original PlantUML source from a PNG file with the -metadata option:

-metadata            To retrieve PlantUML_ sources from PNG images

see: https://mrhaki.blogspot.com/2016/12/plantuml-pleasantness-get-plantuml.html

Running via an ANT Task