🚀 go-pugleaf

  From: werner@mc.ab.COM (tim werner)
  Date: 4 Aug 1994 11:50:31 -0400

  >Date: Wed, 3 Aug 94 17:40:21 -0400
  >From: rms@gnu.ai.mit.edu (Richard Stallman)
  >
  >    In emacs-19.25, with face-lock 3.03, using font-lock-fontify-region seems
  >    to re-fontify only the "comment", and "string" faces, but not "keyword",
  >    "type", or "function".
  >
  >I am not sure what you mean.  Please send me a precise recipe
  >for a problem and tell me precisely what I should expect to see
  >that is wrong at the end of it.

font-lock-fontify-region only does syntactic fontification (comments
and strings); it does not call font-lock-hack-keywords to process any
regexps specifying keywords.

You could probably get what you want by calling: 

 (font-lock-after-change-function start end 0)

which pretends that you just inserted the region [start, end].
However, this would be somewhat a violation of modularity.  
font-lock should export a well-named function to achieve this.

But why are you calling these functions in the first place?

If you desire incremental on-the-fly lazy fontification then you
should wait for my 'FontiFly' package which will be released in the
near future. It fontifies on demand (i.e. regions in the buffer are
fontified only when they need to be displayed).  This is much faster
than font-lock or face-lock or anything else I've heard of (especially
if you do a lot of tags operations that load many files). When you
use FontiFly you essentially get fontification for free, there
are no delays whatsoever.

-Bill