Uncrustify Configuration vs RTEMS Coding Style

[Sebastian Huber]

On 05/04/2021 17:25, Joel Sherrill wrote:

>
>
> On Mon, Apr 5, 2021 at 9:51 AM Sebastian Huber 
> <sebastian.huber at embedded-brains.de 
> <mailto:sebastian.huber at embedded-brains.de>> wrote:
>
>     Hello Joel,
>
>     On 04/04/2021 22:19, Joel Sherrill wrote:
>     > Hi Sebastian,
>     >
>     > Do you have a list or remember where uncrustify could not match the
>     > RTEMS Coding Style?
>
>     my uncrustify had 742 options and I didn't manage do find an
>     option set
>     which produces the RTEMS Coding Style. I think using options to
>     define a
>     source code formatter behaviour is broken by design. You probably
>     need
>     some sort of a Turing complete domain-specific language for this.
>
>     I tried to write a configuration file for clang-format 10. It worked
>     well until I discovered this broken option:
>
>     https://stackoverflow.com/questions/38392889/clang-format-align-asterisk-of-pointer-declaration-with-variable-name
>     <https://stackoverflow.com/questions/38392889/clang-format-align-asterisk-of-pointer-declaration-with-variable-name>
>
>     What we need for the RTEMS style is:
>
>     AlignConsecutiveDeclarations: true
>
>     PointerAlignment: Right
>
>     This combination seems to be unimplemented properly since 2016.
>
>     It seems there is still no tool available which is able to produce
>     something close to the RTEMS style.
>
>
> Which do you think is closer? Any hunch? Or which was better in
> your experience?
>
> I don't expect a tool to be perfect. I expected there to be some give
> and take between changing our style and changing the tool.

I would use clang-format since this tool is used by some large projects. 
For an example please have a look at:

https://lists.rtems.org/pipermail/devel/2021-April/066311.html

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