mailing-list for TeXmacs Users

[Henri Lesourd <address@hidden>]

Lionel Elie Mamane wrote:

> I'm listening. Where is that documented? grepping for "socket"
> case-insensitively in a fresh CVS HEAD checkout of the documentation
> finds only a changelog entry:
>
> <item>Support for connections by sockets (1.0.2.1).
>
> but no further documentation on how this works.
>
>  
>
> [...] so a clean way to
> send s-expressions (only) interests me.
>
>  
OK, here is my simple (and even simplest I hope)
implementation of a TeXmacs plugin for speaking
to a basic Scheme server by means of exchanging
only s-expressions on a Scheme socket.

The files are :

1. server.scm, which is a library for implementing
  straightforward socket I/O at the Scheme level
  directly (this is why you saw nothing about
  this in the TeXmacs documentation per se).

  This library is very short (102 lines) and
  completely self-contained (modulo the use
  of standard SRFI Scheme functions), and
  this is done on purpose, in order to
  allow people to read it and understand
  everything ;

2. server1.scm : a simple example of a server
  implemented by means of the library ;

3. sse.scm : the client-side part of the
  application : it is made by means of
  redefining a keyboard shortcut in the
  context of a particular tag (i.e. <sse-document|...>,
  which is defined in the stylesheet associated with
  the plugin), and by implementing the Scheme function
  (send-chink) for extracting a chunk of markup around
  the cursor pos & send it to the server ;

  Please note the <use-module|sse> in sse.ts : this
  is for disabling lazy loading of the Scheme code
  for the module sse (this way, the things defined
  in the module [i.e. : the keyboard shortcuts] become
  active immediately, not 30 seconds after the loading
  of the document).

Everything about installing & trying this example
plugin is explained in the README file contained
in the tarball joined as an attachment to this
email.


Best, Henri

P.S. : I plan to post a little bit more explanations
 about how to do Scheme programming with markup trees
 in TeXmacs in some time from now, but any questions
 related to this example server are welcomed in
 between (as well as later), anyway.

Attachment: sse.tar
Description: Unix tar archive