nobu	2015-11-12 14:17:06 +0900 (Thu, 12 Nov 2015)

  New Revision: 52548

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=52548

  Log:
    parse.y: ANDDOT fluent interface
    
    * parse.y (parser_yylex): ANDDOT at the head of the line denote
      line continuation from previous one to support fluent interface,
      as well as single dot.

  Modified files:
    trunk/ChangeLog
    trunk/misc/ruby-mode.el
    trunk/parse.y
    trunk/test/ruby/test_syntax.rb
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 52547)
+++ ChangeLog	(revision 52548)
@@ -1,3 +1,9 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Thu Nov 12 14:17:01 2015  Nobuyoshi Nakada  <nobu@r...>
+
+	* parse.y (parser_yylex): ANDDOT at the head of the line denote
+	  line continuation from previous one to support fluent interface,
+	  as well as single dot.
+
 Thu Nov 12 13:49:50 2015  SHIBATA Hiroshi  <hsbt@r...>
 
 	* lib/rubygems: Update to RubyGems 2.5.0+ HEAD(db78980).
Index: misc/ruby-mode.el
===================================================================
--- misc/ruby-mode.el	(revision 52547)
+++ misc/ruby-mode.el	(revision 52548)
@@ -898,7 +898,7 @@ Emacs to Ruby." https://github.com/ruby/ruby/blob/trunk/misc/ruby-mode.el#L898
       (goto-char ruby-indent-point)
       (beginning-of-line)
       (skip-syntax-forward " ")
-      (if (looking-at "\\.[^.]")
+      (if (looking-at "\\.[^.]\\|&\\.")
           (+ indent ruby-indent-level)
         indent))))
 
Index: parse.y
===================================================================
--- parse.y	(revision 52547)
+++ parse.y	(revision 52548)
@@ -8034,9 +8034,10 @@ parser_yylex(struct parser_params *parse https://github.com/ruby/ruby/blob/trunk/parse.y#L8034
 	      case '\13': /* '\v' */
 		space_seen = 1;
 		break;
+	      case '&':
 	      case '.': {
 		dispatch_delayed_token(tIGNORED_NL);
-		if (!peek('.')) {
+		if (peek('.') == (c == '&')) {
 		    pushback(c);
 		    dispatch_scan_event(tSP);
 		    goto retry;
Index: test/ruby/test_syntax.rb
===================================================================
--- test/ruby/test_syntax.rb	(revision 52547)
+++ test/ruby/test_syntax.rb	(revision 52548)
@@ -628,6 +628,11 @@ eom https://github.com/ruby/ruby/blob/trunk/test/ruby/test_syntax.rb#L628
     assert_syntax_error(":#\n foo", /unexpected ':'/)
   end
 
+  def test_fluent_dot
+    assert_valid_syntax("a\n.foo")
+    assert_valid_syntax("a\n&.foo")
+  end
+
   private
 
   def not_label(x) @result = x; @not_label ||= nil end

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