gvInclude.gvpr - insert a Graphviz code file into another Graphviz file

[steveroush]

gvInclude.gvpr provides the equivalent of the #include feature of the C pre-processor, without needing any non-Graphviz programs (it does use the Graphviz gvpr program) (see https://www.graphviz.org/pdf/gvpr.1.pdf)

usage: gvpr -aFmyfile.gv

an example of myfile.gv:

graph {
    AA -- BB
  #include "includeMe1"
  a -- b
     #include "includeMe2"
  b -- c
  #include "includeMe1"
  e -- f
     #include "includeMe2"
   AA -- BB -- CC
   EE -- { FF GG }
}

gvInclude.gvpr can be found here: gvInclude.gvpr - Graphviz #include feature · GitHub

p.s. this code is only lightly tested. Please report bugs, questions, or requests