Additional code formatting features

[misfo]

Since experiencing how freeing a tool like gofmt is when run automatically on all code, I've been wishing Ruby had a similar tool. Having a tool do formatting for you takes one thing off your mind, however small, when writing code.

Would you have any interest in pull requests for any of the following?:

• an options that preserve comments
• An option that preserves blank lines (possibly limited to n consecutive blank lines)
• an option for indenting subexpressions on the right hand side of an operator (e.g. indenting an if ... else ... end expression on the RHS of an assignment so that the keywords all line up)

To make a tool like gofmt would require a CLI, too. But maybe that would make more sense as a separate project that depends on sorcerer...

[jimweirich]

• Preserving comments -- Yes, but can that be done with Ripper?
• Preserving blank lines -- Also yes.
• Deep indentation of subexpressions -- Also yes, as long as it was an option.

And yes, I think a separate tool depending on Sorcerer would be a good idea.

[misfo]

Ugh... It looks like the first two aren't doable with the sexps alone. There probably some way to do it if we were also given the results of Rippers lexer, but that might be a lot of work...