scintilla: Ruby: Highlight keyword-style arguments correctly - fixes #…

…522

rn=

(integrated from master branch change 9.2.1-231-ge9bcc68 by Mitchell <mitchellb@activestate.com>)

contrib/patches/scintilla/copy/lexers/LexRuby.cxx

@@ -425,7 +425,17 @@ static bool isHashRocketSuccessorColon(int i, Accessor &styler) {
             }
         }
     }
-    return (ch == ',' || ch == '{');
+
+    // Check for keyword-style arguments in Ruby 1.9+ method calls.
+    if (actual_style(styler.StyleAt(pos)) == SCE_RB_IDENTIFIER) {
+        while (--pos > 0) {
+            if (actual_style(styler.StyleAt(pos)) != SCE_RB_IDENTIFIER) {
+                return styler[pos] == '.';
+            }
+        }
+    }
+
+    return (ch == ',' || ch == '{' || ch == '(');
 }
 
 // Look at chars up to but not including endPos