Re: Too fine design granularity leads to numerous macro/function/command existed in Emacs.

[Arthur Miller]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Arthur Miller <arthur.miller@live.com>
>> Date: Fri, 13 Aug 2021 11:26:39 +0200
>> Cc: help-gnu-emacs <help-gnu-emacs@gnu.org>
>> 
>> Hongyi Zhao <hongyi.zhao@gmail.com> writes:
>> 
>> >  It's well known that Emacs has already implemented numerous
>> > macro/function/command in its current version. But it seems that this
>> > is caused by, to a certain degree, the too fine granularity, i.e.,
>> > there are many functionally similar macro/function/command are
>> > designed separately, for example, `directory-files' and
>> > `directory-files-recursively'. The traditional Unix tool, `find', can
>> I wouldn't say that these are "very" similar. Sure they both list files,
>> but a recursive lister vs. plain lister is a big difference.
>
> The comparison of 'find' with the two Emacs APIs is basically invalid:
> 'find' is an _application_, whereas the 2 APIs are just that: APIs
> that could be used to build such an application.  See find-lisp.el for
> what the application would look like.

In a *shell world* one could logically think of cli utlities
as "apis" and options as function arguments, and I guess pipe would be
functional composition. Just a little mind stretch if you don't mind
the pun :).