Support GraphViz label orientation control-characters \l, \n and \r

I can't get the label orientation characters for GraphViz (\l, \r, \n) to work - so I changed the source of GraphVizPlugin

<diff>
112c112
< fwriter.write(content);
—
> fwriter.write(preserveGraphVizControls(content)); //
> restore control commands
219a220,253
>
>
> /**
> * Try to preserve/restore the GraphViz label formatting characters
> * \l, \r, \n, \<blank> and \N.
> *
> * @param content body of the

{graphviz}

-tag
> * @return a string, where the mentioned characters are restored
> */
> private String preserveGraphVizControls(String content) {
> if (content != null) {
> StringBuffer result = new StringBuffer(content);
> int pos;
> while ((pos = result.indexOf(" ")) >= 0)

{ > result.replace(pos, (pos+5), "\\ "); > }

> while ((pos = result.indexOf("N")) >= 0)

{ > result.replace(pos, (pos+5), "\\N"); > }

> while ((pos = result.indexOf("l")) >= 0)

{ > result.replace(pos, (pos+6), "\\l"); > }

> while ((pos = result.indexOf("n")) >= 0)

{ > result.replace(pos, (pos+6), "\\n"); > }

> while ((pos = result.indexOf("r")) >= 0)

{ > result.replace(pos, (pos+6), "\\r"); > }

> return result.toString();
> } else

{ > return null; > }

> }
>
</diff>

after that, my label justifiying worked.
Mabye it's possible to promote this change to the codebase ...