Re: include Ada Reference Manual info files in ada-mode ELPA package?

[Stephen Leake <stephen_leake@stephe-leake.org>]

Andreas Schwab <schwab@linux-m68k.org> writes:

> Stephen Leake <stephen_leake@stephe-leake.org> writes:
>
>> --- a/admin/archive-contents.el
>> +++ b/admin/archive-contents.el
>> @@ -167,7 +167,7 @@ EXTRAS is an alist with additional metadata.
>>  
>>  PKG is the name of the package and DIR is the directory where it is."
>>    (let* ((mainfile (expand-file-name (concat pkg ".el") dir))
>> -         (files (directory-files dir nil "\\.el\\'")))
>> +         (files (directory-files dir nil "^dir$\\|\\.el\\'")))
>
> Please use \` and \' instead of ^ and $.

What is the rationale for that? 

Is it documented somewhere? I looked for an "elisp style guide" in
emacs/docs/*, and in various READMEs, but didn't see anything obvious.

I find ^ and $ more readable (I had to look up \', and did not know
about \`). Although it does make sense to use the same style within one
regexp.

-- 
-- Stephe