tildify.el: introduce a `tildify-space-string' variable

* textmodes/tildify.el (tildify-space-string): New variable for
specifying representation of a hard space -- a no-break space by
default.  Being a buffer-local variable it is much easier to
handle than `tildify-string-alist' that has been used so far.  It
also works better with derived modes.
(tildify-string-alist): Mark as obsolete.

* textmodes/tex-mode.el (tex-common-initialization): Set
`tildify-space-string' variable in all variants of TeX mode since
`tildify-string-alist' is now empty by default.

* nxml/nxml-mode.el (nxml-mode): Ditto in `nxml-mode'.  If
encoding supports it use no-break space instead of character
entity; this changes previous default which used a numeric
reference.

* textmodes/sgml-mode.el (sgml-mode): ditto in `sgml-mode'.  If
encoding does not support no-break space, use numeric reference;
this changes previous default which used named entity (“ ”)
in HTML mode.

1 files changed, 5 insertions, 0 deletions

diff --git a/test/ChangeLog b/test/ChangeLog
index 2dfd5151f09..1c739d456ac 100644
--- a/test/ChangeLog
+++ b/test/ChangeLog
@@ -1,3 +1,8 @@
+2014-11-17  Michal Nazarewicz  <mina86@mina86.com>
+
+        * automated/tildify-tests.el (tildify-test-html, tildify-test-xml):
+        HTML and XML now use no-break space as hard space.  Update tests.
+
 2014-11-17  Glenn Morris  <rgm@gnu.org>
 
         * automated/occur-tests.el (occur-test-case, occur-test-create):