On Mon, 25 May 2009, luigi scarso wrote:

> I think the point is this :
> in some situations one find useful to convert things like • in macros like
> \item .
> Of course, it can be done with  preprocessing , or with some ad-hoc macros in
> lua code , etc
> So, apart \remapcharacter, are there  any other safe ways to "remap character"
> ?

Wolfgang mentioned the method with active character.
And there is also this one:

\startluacode
function my_replace(line)
       return line:gsub('• ', '\\item ')
end
callback.register('process_input_buffer', my_replace)
\stopluacode
\starttext
\startitemize
• bla
• bla
• bla
\stopitemize
\stoptext

I like the latter one, because it permits also replacing whole words and
much more. But you need to be careful, see also:
http://archive.contextgarden.net/message/20080404.200709.454e4740.en.html
;)