Two feature requests

[satazor]

Format an AST

At the moment the format function only accepts a string. It would be nice to support a rocambole AST. In my use case, I use rocambole to fetch the AST with all those extra tokens, modify it, and want be able to format it.

Don't reformat code

Assuming that the feature request above is done, I would like esformatter to be able to take an AST and output the correspondent source code WITHOUT formatting. I don't know if this gets out of the scope of this tool.

[millermedeiros]

The AST generated by rocambole already contains a toString() method.

the issue with formatting the AST is that right now I do some RegExp replacements to remove all the indent, trailing white spaces and empty lines before calling rocambole.parse(sourceString).. so I would need to refactor this logic before doing that. so right now you actually need to do:

esformatter.format( ast.toString() );

will leave it open since I agree that it should be able to process an AST (just not sure if it will degrade performance and how hard it will be to implement it).

as a side note, I also think the format method should allow returning an AST so you could potentially pipe it with other tools (I would like to see a tool that forced hardwrap of long lines).

[millermedeiros]

I will probably add a new method esformatter.transform( ast ) which returns the transformed AST (not a string). I would also want a way to pass a regular Esprima AST and enhance it as needed.

[millermedeiros]

closing this issue in favor of #86