New highlighter for Ruby's ERB and HTML embedded ERB

Ruby code inside ERB tags (whether in plain or HTML environment) is highlighted
via the ruby.jsf colorer.

erb.jsf

@@ -0,0 +1,31 @@
+# JOE syntax highlight file for plain ERB
+
+=Idle
+=Keyword	bold
+=Bad		bold red
+=Brace		magenta
+
+=ERB		yellow
+
+:content Idle
+	*		content
+	"<"		maybe_erb_start
+
+:maybe_erb_start Idle
+	*		content		noeat
+	"%"		maybe_erb_eq	recolor=-2
+
+:maybe_erb_eq ERB
+	*		rtn_ruby	noeat call=ruby.ruby(erb)
+	"="		rtn_ruby	call=ruby.ruby(erb)
+
+:rtn_ruby ERB
+	*		content		noeat
+
+:erb ERB
+	*		erb
+	"%"		maybe_erb_end
+
+:maybe_erb_end ERB
+	*		erb
+	">"		content