Re: [PATCH v7 10/10] qapi: make 'if' condition strings simple identifiers

[Eric Blake <eblake@redhat.com>]

On Wed, Aug 04, 2021 at 12:31:05PM +0400, marcandre.lureau@redhat.com wrote:
> From: Marc-André Lureau <marcandre.lureau@redhat.com>
> 
> Change the 'if' condition strings to be C-agnostic. It will accept
> '[A-Z][A-Z0-9_]*' identifiers. This allows to express configuration

This allows the expression of configuration

> conditions in other languages (Rust or Python for ex) or other more

I'd spell out 'example'

> suitable forms.
> 
> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
> Tested-by: John Snow <jsnow@redhat.com>
> ---

> @@ -4307,8 +4307,8 @@
>  # @size: Size of the virtual disk in bytes
>  # @preallocation: Preallocation mode for the new image (default: off;
>  #                 allowed values: off,
> -#                 falloc (if defined CONFIG_POSIX_FALLOCATE),
> -#                 full (if defined CONFIG_POSIX))
> +#                 falloc (if CONFIG_POSIX_FALLOCATE),
> +#                 full (if CONFIG_POSIX))

Pre-existing, but the (double (nesting)) is a bit lisp-y considering
this comment is user-facing, where using [] for one of the layers
might help readability.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org