dfmt options

[Idan Arye via Digitalmars-d]

On Saturday, 14 March 2015 at 23:15:35 UTC, Brian Schott wrote:
> First, a disclaimer: I am an idiot for starting this thread.
>
> Moving on...
>
> I'm working on a list of configuration options for dfmt - a 
> formatter for D source code.
>
> So far I have the following:
>
> * Insert spaces between if, while, for, foreach, etc loops and 
> the "("
> * Allman vs One True Brace Style (Already supported by 
> commant-line switch)
> * Operators at the end of the old line vs beginning of the new 
> line when wrapping long expressions.
> * Insert space after the ")" of a cast expression
> * Make "case" and "default" match the indent level of the 
> enclosing "switch"
> * Labels for loops always on their own line vs the same line as 
> the loop
> * Labels outdented one level
> * Label indentation matches the most recent "switch"
> * Hard limit for line length
> * Soft limit for line length
>
> What am I missing?

Are you planning on making all these options command-line flags? 
When you invoke dfmt via an editor plugin it doesn't matter much 
- but if there are a lots of options, having each editor support 
all of them will require all the plugin maintainers to always 
keep their plugins up to date. Otherwise, a team that wants to 
use dfmt will be limited to the lowest common subset of 
formatting options supported by the editors of all team members.

How about making dfmt read it's configuration from a file? That 
way, a project can a dfmt.json file or something in it's root 
directory, and all editors will point it to this file.

If you choose to use this approach, dfmt should also be able to 
emit a template of this file(fully configured to the one true 
style, whatever that may be), and you should consider if you want 
to allow a default dfmt style file in the user's home directory 
or if you want to force users that work on unconfigured projects 
to always use the default(though it should be easy enough for an 
editor plugin to allow the user to have a default style file).