Re: Emacs rewrite in a maintainable language

[Daniel Colascione]

On 10/12/2015 08:35 AM, Eli Zaretskii wrote:
>> Date: Mon, 12 Oct 2015 05:43:02 +0300
>> From: Eli Zaretskii <address@hidden>
>> Cc: address@hidden, address@hidden
>>
>>> From: Marcin Borkowski <address@hidden>
>>> Date: Mon, 12 Oct 2015 00:02:43 +0200
>>>
>>> it might be a good idea to move some parts of Emacs core (which are
>>> not system-dependent or performance-critical, e.g., parts of
>>> interactive behavior like `self-insert-command' might fit here) from
>>> C to Elisp.
>>
>> We are doing this all the time.  Patches to that effect are welcome.
> 
> Btw, most of the code for self-insert-command is in an internal
> function, so rewriting that in Lisp is unlikely to help people
> understand its internal hair.
> 
> More importantly, most of the complicated parts of the C code cannot
> be rewritten in Lisp anyway, so only limited progress can be made this
> way, which will not make it easier to understand the core.

Exactly. The complexity in the core is not a result of its
implementation language. It's complex because it's complex. Suddenly
sprinkling "class" and vtables through the core isn't going to reduce
the complexity of the implemented logic.

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