* lisp/progmodes/ruby-mode.el

(ruby-syntax-propertize-function): After everything else, search
for expansions in string literals, mark their insides as
whitespace syntax and save match data for font-lock.
(ruby-font-lock-keywords): Highlight just the 2nd group from
expression expansion matches.
(ruby-match-expression-expansion): Use the match data saved to the
text property in ruby-syntax-propertize-function.

* test/automated/ruby-mode-tests.el
Change direct font-lock face references to var references.
(ruby-interpolation-suppresses-syntax-inside): New test.
(ruby-interpolation-inside-percent-literal-with-paren): New
failing test.

1 files changed, 9 insertions, 0 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 19623bd06b7..99bfabb8115 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -2,6 +2,15 @@
 
         * progmodes/ruby-mode.el (ruby-expr-beg): Make heredoc detection
         more strict.  Add docstring.
+        (ruby-expression-expansion-re): Extract from
+        `ruby-match-expression-expansion'.
+        (ruby-syntax-propertize-function): After everything else, search
+        for expansions in string literals, mark their insides as
+        whitespace syntax and save match data for font-lock.
+        (ruby-font-lock-keywords): Use the 2nd group from expression
+        expansion matches.
+        (ruby-match-expression-expansion): Use the match data saved to the
+        text property in ruby-syntax-propertize-function.
 
 2012-11-14  Stefan Monnier  <monnier@iro.umontreal.ca>