In case the previous description was unclear, below is an example of
what the extension does:
original wikitext:
Hello this is English, τηφσ ισ θοδδω, and back to English again.
processed to become this:
Hello this is English, <span lang="grc">τηφσ ισ θοδδω,</span> and
back to English again.
The span attributes can be configured with a global configuration
variable, as can the range of characters that should be enclosed in
it.
Again, any response would be very welcome.
Nick