R Language Formatter in Editor

[gaocegege]

Now there is no formatter to format the code, we need to import or implement one.

  /**
   * @see processing.app.ui.Editor#createFormatter()
   */
  @Override
  public Formatter createFormatter() {
    return null;
  }

[jeremydouglass]

Perhaps use formatR?

• https://yihui.name/formatr/
• https://stackoverflow.com/questions/3017877/tool-to-auto-format-r-code

[gaocegege]

Yes, it may works, and I have some connections with the authors of formatR, so we have technical support 😄

[jeremydouglass]

What are we currently using for checking R code formatting on the repository? Ideally the Example Processing.R sketches will both:

1. be unchanged when running the PDE R autoformatter
2. pass continuous integration code checks on the repository

[gaocegege]

We are using FormatRBear in coala, and its backend is formatR.

[gaocegege]

Yeah, I agree with you :)

[gaocegege]

Try to use formatR, which means if the user wanna to use the formatter, he/she needs R installed.

[jeremydouglass]

if the user wanna to use the formatter, he/she needs R installed

As an alternative to the user installing R or to us including a full separate R install just for the PDE formatter...

Does formatR run in renjin?

http://packages.renjin.org/package/org.renjin.cran/formatR/1.2.1

Perhaps we could have the autoformatter call formatR through renjin, if it isn't too slow?

[gaocegege]

We could have a try but there are 5 tests failed.

[jeremydouglass]

I see -- then I think it is probably not worth trying.

[gaocegege]

There are some ways:

• formatR, we run formatR in a separate process and send the code to the process to do the check. it needs the users to install R and formatR package
• formatR in renjin, not sure if it works.
• Find some native implementations in JVM for R code style checking.