Re: [PATCH v2 2/3] revisions.txt: mark optional rev arguments with []

[Andreas Heiduk <asheiduk@gmail.com>]

Am 27.04.19 um 14:16 schrieb Denton Liu:
> In revisions.txt, an optional rev argument was not distinguised.
> Instead, a user had to continue and read the description in order to
> learn that the argument was optional.
> 
> Since the [] notation for an optional argument is common-knowledge in
> the Git documentation, mark optional arguments with [] so that it's more
> obvious for the reader.
> 
> Signed-off-by: Denton Liu <liu.denton@gmail.com>
> ---
>  Documentation/revisions.txt | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/revisions.txt b/Documentation/revisions.txt
> index e5f11691b1..68cce2ca06 100644
> --- a/Documentation/revisions.txt
> +++ b/Documentation/revisions.txt

I think I found another one here:

@@ -65,7 +65,7 @@ some output processing may assume ref names in UTF-8.
 '@'::
   '@' alone is a shortcut for `HEAD`.
 
-'<refname>@{<date>}', e.g. 'master@\{yesterday\}', 'HEAD@{5 minutes ago}'::
+'[<refname>]@{<date>}', e.g. 'master@\{yesterday\}', 'HEAD@{5 minutes ago}'::
   A ref followed by the suffix '@' with a date specification
   enclosed in a brace
   pair (e.g. '\{yesterday\}', '{1 month 2 weeks 3 days 1 hour 1

The doesn't give a hint that <refname> is optional but actually it is.

> @@ -95,7 +95,7 @@ some output processing may assume ref names in UTF-8.
>    The construct '@{-<n>}' means the <n>th branch/commit checked out
>    before the current one.
>  
> -'<branchname>@\{upstream\}', e.g. 'master@\{upstream\}', '@\{u\}'::
> +'[<branchname>]@\{upstream\}', e.g. 'master@\{upstream\}', '@\{u\}'::
>    The suffix '@\{upstream\}' to a branchname (short form '<branchname>@\{u\}')
>    refers to the branch that the branch specified by branchname is set to build on
>    top of (configured with `branch.<name>.remote` and
> @@ -103,7 +103,7 @@ some output processing may assume ref names in UTF-8.
>    current one. These suffixes are also accepted when spelled in uppercase, and
>    they mean the same thing no matter the case.
>  
> -'<branchname>@\{push\}', e.g. 'master@\{push\}', '@\{push\}'::
> +'[<branchname>]@\{push\}', e.g. 'master@\{push\}', '@\{push\}'::
>    The suffix '@\{push}' reports the branch "where we would push to" if
>    `git push` were run while `branchname` was checked out (or the current
>    `HEAD` if no branchname is specified). Since our push destination is
> @@ -131,7 +131,7 @@ from one location and push to another. In a non-triangular workflow,
>  This suffix is also accepted when spelled in uppercase, and means the same
>  thing no matter the case.
>  
> -'<rev>{caret}', e.g. 'HEAD{caret}, v1.5.1{caret}0'::
> +'<rev>{caret}[<n>]', e.g. 'HEAD{caret}, v1.5.1{caret}0'::
>    A suffix '{caret}' to a revision parameter means the first parent of
>    that commit object.  '{caret}<n>' means the <n>th parent (i.e.
>    '<rev>{caret}'