Hello,

Following our discussion about namespace I think it's time to start with
something concrete where most people are agreeing already.

I started an issue at https://github.com/magnars/s.el/issues/136 asking the
author how he feels about inclusion/importing into Emacs.

Past experiences showed me that inclusion of such public library is always
complicated due to copyright assignments, but I believe we can skip that
painful part as explained later on.

I propose the following plan:

   1.  Check wether there are existing emacs `*-string-* functions that'd
   be aliased to start with `string-` and make a patch for that. That is,
   already unify the existing Emacs string library if needed.
   2. Decide of a set of function that we'd "import" from s.el and
   namespace them under the `string-` namespace. For example, `s-prepend`
   would become `string-prepend`. Maybe that can be the whole API of s.el but
   probably that some will object to that while agreeing on a smaller set.
   3. Decide how we import these, either by copyright assignments or by
   importing the function signature and "simply" reimplementing these. Their
   implementation is usually trivial.

On a side note, I'm curious about 3: given the code is already GPL v3, are
we allowed to simply implement the Emacs string-* function using s.el? or
copy-paste from it? WARNING I know this is a very touchy subject and my
goal is not to offend anyone, especially not the author of this wonderful
library, I am just genuinely curious of what is allowed and what is not in
this case. I'd not like to do that without the author consent.

Kind regards,
Philippe