Re: libnettle/libhogweed WIP

[Eli Zaretskii]

> From: Lars Ingebrigtsen <address@hidden>
> Date: Wed, 19 Apr 2017 18:49:56 +0200
> 
> By just allowing non-multibyte text as input, you avoid stuff like
> 
> ---
> If CODING-SYSTEM is nil or omitted, the default depends on OBJECT.  If
> OBJECT is a buffer, the default for CODING-SYSTEM is whatever coding
> system would be chosen by default for writing this text into a file.
> 
> If OBJECT is a string, the most preferred coding system (see the
> command ‘prefer-coding-system’) is used.
> 
> If NOERROR is non-nil, silently assume the ‘raw-text’ coding if the
> guesswork fails.  Normally, an error is signaled in such case.
> ---
> 
> in the needlessly complicated call signature to `md5'.

We could simply use choose_write_coding_system instead, we already use
it for write-region, which can write either buffer text or a string.
Then all the complexity that bothers you will go away, and be no more
visible than it is when you call write-region.