Learn about the IntelliJ requirements for code formatting plugins

[avh4]

• https://github.com/durkiewicz/elm-plugin/issues/9#issuecomment-220239318
• http://www.jetbrains.org/intellij/sdk/docs/reference_guide/custom_language_support/code_formatting.html
• https://github.com/avh4/elm-format/issues/182#issuecomment-230946090

Questions to answer:

• What are IntelliJ's requirements for supporting code formatting for a language?
• Supposedly the Haskforce plugin does formatting via an external tool (https://github.com/avh4/elm-format/issues/182#issuecomment-230946090), can that approach be used for the elm plugin? Does the elm plugin author not like that approach, and if so, could a separate elm-format plugin be created?
• What API needs to be implemented in the IntelliJ plugin?
• How can we generate the required formatting code from the elm-format source?

[ianp]

FYI I have a version of elm-plugin that works with elm-format, I'm in discussion with @durkiewicz at the moment about getting it merged.

[LucianU]

Any updates on this?