[[!template id=plugin name=mscgen author="[[TerryGolubiewski]]"]
[[!tag type/widget]]

This plugin provides the mscgen [[ikiwiki/directive]].
This directive allows embedding [mscgen](http://www.mcternan.me.uk/mscgen/)
message sequence chart graphs in a page.

Here's an mscgen source example.

    \[[!msc src="""
      arcgradient = 8;

      a [label="Client"],b [label="Server"];

      a=>b [label="data1"];
      a-xb [label="data2"];
      a=>b [label="data3"];
      a<=b [label="ack1, nack2"];
      a=>b [label="data2", arcskip="1"];
      |||;
      a<=b [label="ack3"];
      |||;
    """]]

Security implications: to be determined

[[!if test="enabled(mscgen)" then="""
And here's the resulting graph.

[[!msc src="""
  arcgradient = 8;

  a [label="Client"],b [label="Server"];

  a=>b [label="data1"];
  a-xb [label="data2"];
  a=>b [label="data3"];
  a<=b [label="ack1, nack2"];
  a=>b [label="data2", arcskip="1"];
  |||;
  a<=b [label="ack3"];
  |||;
"""]]

"""]]

This plugin uses the [[!cpan Digest::SHA]] perl module.

This plugin borrows heavily from the [[graphviz|plugins/graphviz]] plugin written by [[JoshTriplett]].


[[!mscgen src=
mscgen is